Stay cable duct fixing and angle adjusting device

Abstract

The utility model discloses a kind of stay cable guide tube fixing and angle adjusting device, it includes: pedestal, support panel, positioning column, telescopic adjusting rod and guide tube end support piece;Pedestal is fixed on ground foundation;Through positioning member, stay cable guide tube is clamped and fixed;The upper end of positioning column is connected with ball head, ball head is installed in ball head mounting seat;One end of telescopic adjusting rod is hingedly connected with the second side of support panel, and other end is hingedly connected with the upper surface of pedestal;Guide tube end support piece includes guide tube collar, connecting block and end support rod, guide tube collar is sleeved in the second end of stay cable guide tube, connecting block is fixedly connected with the outer wall of guide tube collar, and the upper end of end support rod is connected with connecting block. Through multiple groups of telescopic adjusting rod that can be independently linearly telescopic fine adjustment, the pitch and deflection angle of support panel in space can be accurately adjusted, so as to drive the stay cable guide tube that is firmly clamped to carry out fine attitude adjustment.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary construction equipment for cable-stayed ducts, and in particular relates to a device for fixing and adjusting the angle of cable-stayed ducts. Background Technology

[0002] Cable guide tubes, also known as cable saddle tubes or cable sleeves, are metal conduits embedded inside the bridge towers (main towers) and main girders of cable-stayed bridges. They are crucial force-transmitting and transitional components connecting the stay cables to the towers and main girders. During construction, the cable guide tubes are precisely embedded at the designed coordinate positions of the towers and main girders. This ensures that each stay cable passes through the concrete structure at the designed spatial angle and is ultimately anchored in the designated position. Even a slight difference in angle can significantly alter the stress state of the cable, thus requiring extremely high positioning accuracy (typically within a few millimeters). Furthermore, the cable guide tube forms a smooth and robust isolation layer between the cable and the concrete duct. This prevents the stay cables from directly rubbing and cutting against the rough edges of the concrete duct under wind loads, vehicle loads, and vibrations, effectively protecting the cable body (especially the outermost PE sheath) from damage.

[0003] In the construction of cable-stayed bridges, the positioning and fixing of the cable ducts mainly rely on traditional construction methods, lacking effective specialized adjustment tools, making it difficult to guarantee positioning accuracy. During adjustment, the cable duct, as a heavy metal pipe, is difficult to adjust in terms of posture. Existing methods often employ temporary welded supports, combined with jacks or manual hoists for coarse adjustments, lacking specialized mechanisms capable of fine, linear adjustments. This makes the duct prone to uncontrollable deviations during adjustment, often resulting in positioning accuracy that is critical or even exceeds limits, making it difficult to consistently meet the high-precision design requirements. Utility Model Content

[0004] The purpose of this invention is to provide a device for fixing and adjusting the angle of a stay cable guide tube, so as to solve the problems of difficulty in ensuring the positioning accuracy and the difficulty in adjusting the posture of the stay cable guide tube.

[0005] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A cable-stayed duct fixing and angle adjustment device, comprising: a base, a support panel, a positioning column, a telescopic adjustment rod, and a duct end support; the base is fixed on the ground foundation; a positioning member is connected to the first side of the support panel, and the positioning member is inserted into the inner cavity of the first end of the cable-stayed duct; a ball head is connected to the upper end of the positioning column, and the lower end of the positioning column is fixedly connected to the base; a ball head mounting seat is provided on the second side of the support panel, and the ball head is installed in the ball head mounting seat; one end of the telescopic adjustment rod is hinged to the second side of the support panel, and the other end of the telescopic adjustment rod is hinged to the upper surface of the base; the duct end support includes a duct collar, a connecting block, and an end support rod; the duct collar is sleeved on the second end of the cable-stayed duct; the connecting block is fixedly connected to the outer wall of the duct collar; and the upper end of the end support rod is connected to the connecting block.

[0006] The cable guide fixing and angle adjustment device described above further includes a positioning component comprising an inner positioning component and an outer positioning component that are interlocked with each other. The inner positioning component is a columnar structure and is detachably connected to the support panel by bolts.

[0007] The cable guide fixing and angle adjustment device of the present invention, as described above, further includes a slot at one end connected to the inner positioning member, into which the inner positioning member is inserted when connected to the outer positioning member; the outer diameter of the outer positioning member is adapted to the inner diameter of the cable guide.

[0008] The cable guide fixing and angle adjustment device of the present invention further includes a base connecting ear plate on the upper surface of the base, a panel connecting ear plate on the second side of the support panel, one end of the telescopic adjustment rod being hinged to the base connecting ear plate, and the other end of the telescopic adjustment rod being hinged to the panel connecting ear plate.

[0009] The cable guide fixing and angle adjustment device described above further includes two groups of telescopic adjustment rods. The first group of telescopic adjustment rods includes a first telescopic adjustment rod and a second telescopic adjustment rod, and the second group of telescopic adjustment rods includes a third telescopic adjustment rod and a fourth telescopic adjustment rod. The panel connecting ear plates are respectively fixed at the four top corners of the support panel of the rectangular structure, and the first group of telescopic adjustment rods and the second group of telescopic adjustment rods are respectively arranged on both sides of the positioning column.

[0010] The cable guide fixing and angle adjustment device described above further includes a telescopic adjustment rod comprising an outer tube and an inner tube, wherein the outer tube and the inner tube are connected by a mutually compatible threaded structure.

[0011] The cable guide fixing and angle adjustment device described above further includes an end support rod comprising an outer tube and an inner tube, wherein the outer tube and the inner tube are connected by a mutually compatible threaded structure.

[0012] The beneficial effects of this utility model are as follows: the cooperation between the ball head and the ball head mounting seat provides a fulcrum for the support panel to rotate in all directions; with the cooperation of multiple sets of telescopic adjustment rods that can be independently linearly extended and retracted for fine adjustment, the pitch and deflection angles of the support panel in space can be precisely and controllably adjusted, thereby driving the firmly clamped cable guide tube to perform fine posture adjustment, effectively solving the problems of difficult adjustment and difficulty in ensuring accuracy in traditional methods, and ensuring that the spatial angle of the cable guide tube meets the design requirements. Attached Figure Description

[0013] The advantages of the present invention, as described above and / or in the following detailed description in conjunction with the accompanying drawings, will become clearer and more readily understood. These drawings are merely illustrative and do not limit the scope of the present invention. Figure 1 This is a schematic diagram of a cable guide tube fixing and angle adjustment device according to one embodiment; Figure 2 This is a schematic diagram of the base and positioning column according to one embodiment of the present invention; Figure 3 This is a schematic diagram of the support panel and outer positioning component according to one embodiment of the present invention; Figure 4 This is a schematic diagram of a support panel according to an embodiment of the present invention; Figure 5 This is a schematic diagram of a catheter end support member according to an embodiment of the present invention; Figure 6 This is a diagram showing the arrangement of the base connecting ear plate according to one embodiment of the present utility model.

[0014] The attached diagram lists the components represented by each number as follows: 1. Base; 11. Base connecting ear plate; 2. Telescopic adjustment rod; 21. First telescopic adjustment rod; 22. Second telescopic adjustment rod; 3. Support panel; 31. Panel connecting ear plate; 32. Ball head mounting seat; 4. External positioning component; 41. Slot; 43. Fixing bolt; 5. Internal positioning component; 6. Cable guide tube; 7. Guide tube end support component; 71. Guide tube collar; 72. Connecting block; 73. End support rod; 8. Positioning column; 81. Ball head; 9. Ground foundation. Detailed Implementation

[0015] In the following description, embodiments of the cable guide fixing and angle adjustment device of the present invention will be described with reference to the accompanying drawings.

[0016] The embodiments described herein are specific implementations of this utility model, used to illustrate the concept of this utility model. They are all illustrative and exemplary, and should not be construed as limiting the implementation methods or scope of this utility model. In addition to the embodiments described herein, those skilled in the art can employ other obvious technical solutions based on the content disclosed in the claims and specification of this application. These technical solutions include those that make any obvious substitutions and modifications to the embodiments described herein.

[0017] The accompanying drawings in this specification are schematic diagrams used to illustrate the concept of this utility model, and schematically show the shapes of the various parts and their interrelationships. Please note that, in order to clearly show the structure of the components of the embodiments of this utility model, the drawings are not drawn to the same scale. The same reference numerals are used to indicate the same parts.

[0018] Combination Figures 1 to 6 This invention describes an embodiment of a cable guide fixing and angle adjustment device, comprising: Base 1 is fixed on ground foundation 9; in one specific embodiment, the base is a square structure with a side length of 120 cm, made of stainless steel plate, and the thickness of the base is greater than or equal to 6 mm.

[0019] Support panel 3, with a positioning element connected to its first side, the positioning element being inserted into the inner cavity of the first end of the cable guide 6; in one specific embodiment, such as Figure 3 As shown, the positioning components include an inner positioning component 5 and an outer positioning component 4 that are interlocked. The inner positioning component 5 is a columnar structure and is detachably connected to the support panel 3 by bolts. The side of the inner positioning component connected to the support panel has bolt holes, and the support panel has a threaded structure that mates with the bolts. The inner positioning component is fixed to the support panel by bolts. The end of the outer positioning component 4 connected to the inner positioning component 5 has a slot 41, into which the inner positioning component 5 is inserted when connected to the outer positioning component. The outer diameter of the outer positioning component 4 is adapted to the inner diameter of the cable guide tube 6. The cooperation of the inner and outer positioning components achieves the fixation of the cable sleeve. Specifically, the cable sleeve is positioned by the outer positioning component in a direction perpendicular to the axial direction (radial direction). By setting it in the above manner, different outer positioning components can be selected according to different cable guide tube sizes, thus adapting to the needs of various construction scenarios. Furthermore, the support panel of this invention can be used as a inclined template, reducing the workload of template fabrication and adjustment.

[0020] The positioning column 8 has a ball head 81 connected to its upper end and a fixed connection between its lower end and the base 1. A ball head mounting seat 32 is provided on the second side of the support panel 3, and the ball head 81 is installed in the ball head mounting seat 32. The telescopic adjustment rod 2 has one end hinged to the second side of the support panel 3 and the other end hinged to the upper surface of the base 1. In one specific embodiment, the telescopic adjustment rod 2 includes an outer tube and an inner tube, which are connected by a mutually compatible threaded structure.

[0021] catheter end support 7, such as Figure 5 As shown, the pipe end support 7 includes a conduit collar 71, a connecting block 72, and an end support rod 73. The conduit collar 71 is sleeved on the second end of the cable guide 6. The connecting block 72 is fixedly connected to the outer wall of the conduit collar 71. The upper end of the end support rod 73 is connected to the connecting block 72. In one specific embodiment, the end support rod 73 includes an outer tube and an inner tube, which are connected by mutually compatible threaded structures.

[0022] The operation of this cable-stayed duct fixing and angle adjustment device is as follows: Step 1, Install the first end of the cable-stayed duct: Slide the first end (head) of the cable-stayed duct onto the positioning piece of the support panel to fix the head end of the duct. Step 2, Install the tail end support: Slide the duct collar of the end support piece onto the second end (tail end) of the cable-stayed duct and fix it. Adjust the length of the end support rod so that its lower end is stably supported on the ground or a suitable foundation, forming auxiliary support for the tail end of the duct. Step 3, Coarse and fine adjustment: Change the length of each telescopic adjustment rod by turning it. By adjusting the telescopic adjustment rods at different positions, the angle of rotation of the support panel around the ball head can be precisely controlled, thereby driving the cable-stayed duct to pitch and deflect until its spatial angle reaches the precise position required by the design. Step 4, Final fixing and subsequent construction: After all adjustments are completed and the spatial coordinates of the cable-stayed duct are confirmed to be correct, lock each adjustment mechanism. Subsequent construction steps can then be carried out. This device will continuously provide stable fixing and support during construction.

[0023] The above embodiments achieve high-precision spatial angle positioning and fine-tuning of the cable guide tube: the ball head and the ball head mounting seat provide a fulcrum for the support panel to rotate in all directions; with multiple sets of telescopic adjustment rods that can be independently linearly adjusted, the pitch and deflection angles of the support panel in space can be precisely and controllably adjusted, thereby driving the firmly clamped cable guide tube to make fine posture adjustments, effectively solving the problems of difficult adjustment and difficulty in guaranteeing accuracy in traditional methods, and ensuring that the spatial angle of the cable guide tube meets the design requirements.

[0024] Furthermore, the above embodiments provide stable and reliable cable-stayed duct fixing capabilities: the combination of internal and external positioning components creates radial constraint on the first end of the cable-stayed duct, effectively preventing duct displacement due to vibration or impact during subsequent construction processes such as concrete pouring, ensuring consistency between initial and final positioning. In addition, the internal and external positioning components are detachable, facilitating replacement and adaptation for cable-stayed ducts of different diameters. The threaded telescopic adjustment rod and end support rod have a simple structure, making adjustment convenient and intuitive, eliminating the need for large or complex machinery, reducing worker operating difficulty, shortening adjustment time, and improving construction efficiency.

[0025] In a preferred embodiment of the cable-stayed bridge guide tube fixing and angle adjustment device, such as Figures 1 to 4 As shown, the upper surface of the base 1 is provided with a base connecting ear plate 11, and the second side of the support panel 3 is provided with a panel connecting ear plate 31. One end of the telescopic adjustment rod 2 is hinged to the base connecting ear plate 11, and the other end of the telescopic adjustment rod 2 is hinged to the panel connecting ear plate 31. The telescopic adjustment rod 2 is divided into two groups. The first group of telescopic adjustment rods 2 includes a first telescopic adjustment rod 21 and a second telescopic adjustment rod 22, and the second group of telescopic adjustment rods 2 includes a third telescopic adjustment rod 2 and a fourth telescopic adjustment rod 2. The panel connecting ear plates 31 are respectively fixed at the four apex positions of the rectangular support panel 3. Figure 2 and Figure 6 As shown, the base connecting lugs 11 are divided into two groups. The first group of base connecting lugs 11 is as follows: Figure 2 As shown, the first set of base connecting ear plates 11 is located on one side of the positioning column 8, and the second set of base connecting ear plates 11 is located on the other side of the positioning column 8; the first set of telescopic adjustment rods 2 and the second set of telescopic adjustment rods 2 are respectively set on both sides of the positioning column 8. By grouping the telescopic adjustment rods in the above manner, the angle of one side of the support panel 3 can be adjusted by using the first set of telescopic adjustment rods, and the angle of the other side of the support panel 3 can be adjusted by using the first set of telescopic adjustment rods, so as to realize the grouped adjustment of the angle orientation.

[0026] The technical features disclosed above are not limited to the combinations of the disclosed features with other features. Those skilled in the art can also make other combinations of the technical features according to the purpose of the utility model in order to achieve the purpose of the utility model.

Claims

1. A device for fixing and adjusting the angle of a stay cable guide tube, characterized in that, include: The base (1), support panel (3), positioning column (8), telescopic adjustment rod (2), and conduit end support (7) are provided. The base (1) is fixed on the ground foundation (9). A positioning element is connected to the first side of the support panel (3), and the positioning element is inserted into the inner cavity of the first end of the cable guide (6). A ball head (81) is connected to the upper end of the positioning column (8), and the lower end of the positioning column (8) is fixedly connected to the base (1). A ball head mounting seat (32) is provided on the second side of the support panel (3), and the ball head (81) is mounted on the ball head. Inside the mounting base (32); one end of the telescopic adjustment rod (2) is hinged to the second side of the support panel (3), and the other end of the telescopic adjustment rod (2) is hinged to the upper surface of the base (1); the conduit end support (7) includes a conduit collar (71), a connecting block (72) and an end support rod (73), the conduit collar (71) is sleeved on the second end of the inclined cable conduit (6), the connecting block (72) is fixedly connected to the outer wall of the conduit collar (71), and the upper end of the end support rod (73) is connected to the connecting block (72).

2. The cable-stayed bridge guide fixing and angle adjustment device according to claim 1, characterized in that, The positioning components include an inner positioning component (5) and an outer positioning component (4) that are interlocked with each other. The inner positioning component (5) is a columnar structure and is detachably connected to the support panel (3) by bolts.

3. The cable-stayed bridge guide fixing and angle adjustment device according to claim 2, characterized in that, The outer positioning member (4) is connected to the inner positioning member (5) at one end with a slot (41). When the inner positioning member (5) is connected to the outer positioning member, it is inserted into the slot (41). The outer diameter of the outer positioning member (4) is adapted to the inner diameter of the cable guide tube (6).

4. The cable-stayed bridge guide fixing and angle adjustment device according to claim 1, characterized in that, The upper surface of the base (1) is provided with a base connecting ear plate (11), and the second side of the support panel (3) is provided with a panel connecting ear plate (31). One end of the telescopic adjustment rod (2) is hinged to the base connecting ear plate (11), and the other end of the telescopic adjustment rod (2) is hinged to the panel connecting ear plate (31).

5. The cable-stayed bridge guide fixing and angle adjustment device according to claim 4, characterized in that, The telescopic adjustment rods (2) are divided into two groups. The first group of telescopic adjustment rods (2) includes a first telescopic adjustment rod (21) and a second telescopic adjustment rod (22). The second group of telescopic adjustment rods (2) includes a third telescopic adjustment rod (2) and a fourth telescopic adjustment rod (2). The panel connecting ear plates (31) are fixed at the four top corners of the rectangular support panel (3). The first group of telescopic adjustment rods (2) and the second group of telescopic adjustment rods (2) are respectively set on both sides of the positioning column (8).

6. The cable-stayed bridge guide fixing and angle adjustment device according to claim 1, characterized in that, The telescopic adjustment rod (2) includes an outer tube and an inner tube, which are connected by a mutually compatible threaded structure.

7. The cable-stayed bridge guide fixing and angle adjustment device according to claim 1, characterized in that, The end support rod (73) includes an outer tube and an inner tube, which are connected by a mutually compatible threaded structure.

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