Cable-stayed bridge tower column cable guide pipe positioning device

Abstract

The utility model provides a cable-stayed bridge tower column cable guide pipe positioning device which comprises an H-shaped mounting frame, a fixing mechanism is arranged at the bottom end of the mounting frame, fixing blocks are symmetrically and fixedly arranged on the inner wall of the top end of the mounting frame twice, and limiting balls are rotationally installed in the fixing blocks in a limiting mode. The cable guide pipe is installed in the limiting ball, the top end of the cable guide pipe is limited through the transverse rod at the top end of the cable guide pipe, the bottom end of the cable guide pipe can be conveniently moved with the limiting ball as the center, the bottom end of the cable guide pipe can be adjusted in the conical hole and the fixing pipe, and the accurate adjusting efficiency of the cable guide pipe can be improved; operation is simple and convenient, and practicability is high; and the bottom end of the adjusted cable guide pipe can be extruded and limited through the arranged limiting bolt, the cable guide pipe can be conveniently and continuously fixed in the follow-up process, the rib plate and the tower column can be conveniently fixed through the fixing screw rod and the nut, and the stability of the device can be improved.

Description

Technical Field

[0001] This utility model relates to the field of cable-stayed bridge tower cable guide pipe technology, specifically a positioning device for cable-stayed bridge tower cable guide pipe. Background Technology

[0002] Chinese utility model patent CN212452311U discloses an installation device for a cable guide tube, including a pre-embedded pipe for installing the cable guide tube. One end of the pre-embedded pipe is located inside a first tower segment. A steel anchor box is provided above the first tower segment, and a reserved hole is provided on the steel anchor box for installing the cable guide tube. The other end of the pre-embedded pipe extends out of the top surface of the first tower segment and corresponds to the reserved hole.

[0003] The above solution facilitates the installation of the cable guide by setting it in the pre-embedded pipe, and increases the allowable deviation of the cable guide positioning by utilizing the internal space of the pre-embedded pipe, making it easier to accurately position the cable guide. However, since both ends of the cable guide are movable, it is difficult to accurately adjust the cable guide, which reduces the efficiency of cable guide positioning and installation and has low practicality.

[0004] Therefore, this utility model provides a positioning device for the cable guide tube of a cable-stayed bridge tower. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a positioning device for the cable guide tube of the tower of a cable-stayed bridge, so as to solve the problems mentioned in the background technology. This utility model installs the cable guide tube inside the limiting ball, and can adjust the bottom end of the cable guide tube with the limiting ball as the center. The operation is simple and convenient, which can improve the precision adjustment efficiency of the cable guide tube and has high practicality.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cable guide positioning device for a cable-stayed bridge tower, comprising an mounting frame in the shape of an "H" shaped bracket, a fixing mechanism at the bottom of the mounting frame, two fixing blocks symmetrically fixed on the inner wall of the top of the mounting frame, a limiting ball rotatably mounted inside the fixing blocks, tapered holes inside the fixing blocks and the mounting frame, and fixing tubes obliquely fixed on both sides of the top of the mounting frame in the shape of a trumpet, with a cable guide movably mounted inside the limiting ball.

[0007] Furthermore, the fixing mechanism includes a fixing screw, the two ends of which are installed inside the bottom ends of the mounting bracket.

[0008] Furthermore, a tower column is provided on the outer side of the mounting frame, and stiffening plates are symmetrically fixed on both sides of the inner side of the tower column.

[0009] Furthermore, the mounting bracket is installed on the top of the stiffening plate by fixing screws, the fixing screws are installed inside the top of the stiffening plate, and nuts are screwed onto the outer ends of the fixing screws corresponding to the inside of the tower column.

[0010] Furthermore, the limiting sphere has a conical hole inside, and the cable guide is movably installed inside the conical hole.

[0011] Furthermore, limit bolts are screwed onto three sides of the bottom end of the fixed tube, and the bottom end of the cable guide is movably installed inside the fixed tube.

[0012] Furthermore, the cable guide is disposed between the inner ends of the three limiting bolts, and the three limiting bolts are in close contact with the outer wall of the cable guide.

[0013] Furthermore, a crossbar is fixedly installed inside the top end of the cable guide tube, and the crossbar is located on top of the limiting ball and in contact with it.

[0014] The beneficial effects of this utility model are as follows: This utility model provides a cable guide positioning device for cable-stayed bridge towers. By installing the cable guide inside a limiting sphere and limiting the top of the cable guide with a crossbar at the top of the cable guide, it is convenient to move the bottom of the cable guide with the limiting sphere as the center. This allows the bottom of the cable guide to be adjusted inside the conical hole and the fixing tube, which can improve the precision adjustment efficiency of the cable guide. The device is simple and convenient to operate and has high practicality. The limiting bolt can squeeze and limit the bottom of the adjusted cable guide, which is convenient for subsequent fixation of the cable guide. The fixing screw and nut can be used to fix the stiffening plate and tower column, which can improve the stability of the device. Attached Figure Description

[0015] Figure 1 This is a structural diagram of a cable-stayed bridge tower duct positioning device according to the present invention;

[0016] Figure 2 This is a front sectional view of a cable-stayed bridge tower duct positioning device according to the present invention;

[0017] Figure 3 This utility model relates to a positioning device for the cable guide pipe of a cable-stayed bridge tower. Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a structural diagram of the cable guide tube of a cable-stayed bridge tower cable guide tube positioning device according to the present invention;

[0019] In the diagram: 1. Mounting bracket; 2. Fixing screw; 3. Fixing block; 4. Limiting ball; 5. Fixing pipe; 6. Limiting bolt; 7. Nut; 8. Tower column; 9. Rib plate; 10. Cable guide tube; 11. Crossbar; 12. Conical hole. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] Please see Figures 1 to 4 This utility model provides a technical solution: a positioning device for cable guide tubes of cable-stayed bridge towers, including a mounting frame 1, which is H-shaped. A fixing mechanism is provided at the bottom of the mounting frame 1. Fixing blocks 3 are symmetrically fixed on the inner wall of the top of the mounting frame 1 on two sides. A limiting ball 4 is installed inside the fixing block 3 for limiting rotation. A conical hole 12 is opened inside the fixing block 3 and the mounting frame 1. Fixing tubes 5 are obliquely fixed on both sides of the top of the mounting frame 1. The fixing tubes 5 are trumpet-shaped. A cable guide tube 10 is movably installed inside the limiting ball 4. The limiting ball 4 can limit the top of the cable guide tube 10 and can also rotate the bottom of the cable guide tube 10, which facilitates precise positioning of the cable guide tube 10. The operation is simple and can improve the positioning and installation efficiency of the cable guide tube 10, and has high practicality.

[0022] In this embodiment, the fixing mechanism includes a fixing screw 2. The two ends of the fixing screw 2 are installed inside the bottom ends of the mounting frame 1. A tower column 8 is provided on the outer side of the mounting frame 1. Rib plates 9 are symmetrically fixed on both sides of the inner side of the tower column 8. The mounting frame 1 is installed on the top of the rib plate 9 through the fixing screw 2. The fixing screw 2 is installed inside the top of the rib plate 9. Nuts 7 are screwed onto the outer sides of the two ends of the fixing screw 2 corresponding to the inner side of the tower column 8. The fixing screw 2 facilitates the fixed connection between the mounting frame 1 and the rib plate 9 and is cast into the concrete, which can improve the stability of the mounting frame 1 and the device and has high practicality.

[0023] In this embodiment, a conical hole 12 is provided inside the limiting ball 4. The cable guide 10 is movably installed inside the conical hole 12. Limiting bolts 6 are screwed to the bottom three sides of the fixed tube 5. The bottom end of the cable guide 10 is movably installed inside the fixed tube 5. The cable guide 10 is located between the inner ends of the three limiting bolts 6. The three limiting bolts 6 are in close contact with the outer wall of the cable guide 10. The conical hole 12 allows the cable guide 10 to be adjusted inside it. The limiting bolts 6 on the three sides compress and fix the cable guide 10, which facilitates the fixation of the cable guide 10, improves the stability of the cable guide 10, and facilitates the subsequent fixation of the cable guide 10 to the cable.

[0024] In this embodiment, a crossbar 11 is fixedly installed inside the top end of the cable guide 10. The crossbar 11 is installed on the top of the limiting ball 4 and is in close contact with it. The top end of the cable guide 10 can be limited by the crossbar 11, which facilitates the movement of the bottom end of the cable guide 10 and makes it easy to accurately position the cable guide 10. It is highly practical.

[0025] When using this cable-stayed bridge tower column cable guide positioning device, the mounting frame 1 is installed on top of the stiffening plate 9, and fixing screws 2 are inserted into the bottom end of the mounting frame 1 and the top end of the stiffening plate 9. The two ends of the fixing screws 2 are screwed with mounting nuts 7 for easy fixation of the device. Concrete is poured onto the outside of the mounting frame 1 using a template to improve the stability of the device. The top end of the cable guide 10 is inserted into the fixing pipe 5, the conical hole 12, and the limiting ball 4, and a horizontal fixing crossbar 11 is inserted laterally at the top end of the cable guide 10, so that the crossbar 11 blocks the limiting ball. The top of body 4 facilitates the limiting of cable guide 10. The limiting ball 4 can also be welded and fixed to the crossbar 11. The bottom end of cable guide 10 is adjusted on one side of the fixing tube 5 to make cable guide 10 accurately positioned. The limiting bolt 6 is rotated to make the inner end of the limiting bolt 6 fit against the outer wall of cable guide 10, which facilitates the fixing of cable guide 10. Then, concrete is poured between the fixing tube 5 and the outer wall of cable guide 10 to fix cable guide 10. This can improve the accuracy adjustment efficiency of cable guide 10, and the operation is simple and convenient with high practicality.

[0026] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A stay cable guide tube positioning device for a tower column of a cable-stayed bridge, comprising a mounting bracket (1), characterized in that, The shape of mounting frame (1) is "H", the bottom end of mounting frame (1) is provided with fixing mechanism, the inner wall of the top end of mounting frame (1) is twice symmetrically and fixedly provided with fixed block (3), the inside of fixed block (3) is rotationally installed with limiting sphere (4), the inside of fixed block (3) and mounting frame (1) is provided with taper hole (12), the both sides of the top end of mounting frame (1) are obliquely and fixedly provided with fixed pipe (5), the shape of fixed pipe (5) is horn-shaped, the inside of limiting sphere (4) is movably installed with cable guide pipe (10).

2. A cable guide positioning device for a tower column of a cable-stayed bridge according to claim 1, characterized in that: The fixing mechanism comprises fixed screw rod (2), both ends of fixed screw rod (2) are installed in the inside of the bottom end of mounting frame (1).

3. A cable guide positioning device for a tower of a cable-stayed bridge according to claim 2, characterized in that: The outside of mounting frame (1) is provided with tower column (8), the inside of tower column (8) is twice symmetrically and fixedly provided with rib plate (9).

4. A cable guide positioning device for a tower of a cable-stayed bridge according to claim 3, characterized in that: The top end of mounting frame (1) is installed on rib plate (9) through fixed screw rod (2), the inside of the top end of rib plate (9) is installed with fixed screw rod (2), the both ends of the outside of fixed screw rod (2) are screw-connectedly installed with nut (7) corresponding to the inside of tower column (8).

5. The cable guide positioning device for a tower column of a cable-stayed bridge according to claim 1, characterized in that: The inside of limiting sphere (4) is provided with taper hole (12), cable guide pipe (10) is movably installed in the inside of taper hole (12).

6. A cable guide positioning device for a tower of a cable-stayed bridge according to claim 5, characterized in that: The bottom end of fixed pipe (5) is screw-connectedly installed with limiting bolt (6) on three sides, the bottom end of cable guide pipe (10) is movably installed in the inside of fixed pipe (5).

7. A cable guide positioning device for a tower of a cable-stayed bridge according to claim 6, characterized in that: Cable guide pipe (10) is arranged between the inner ends of three-side limiting bolt (6), three-side limiting bolt (6) is in contact with the outer wall of cable guide pipe (10).

8. The cable guide positioning device for a tower column of a cable-stayed bridge according to claim 1, characterized in that: The inside of the top end of cable guide pipe (10) is fixedly provided with cross rod (11), cross rod (11) is arranged on the top of limiting sphere (4) and is in contact with it.

Images