Cable unfolding combined trolley for space-limited bridge floor

Abstract

The utility model provides a cable unfolding combined trolley for a space-limited bridge floor, which relates to the technical field of cable-stayed bridge construction and comprises a supporting plate, a group of limiting components are arranged on the upper surface of the supporting plate, and a moving component is arranged on the bottom surface of the supporting plate. According to the cable unfolding combined trolley for the space-limited bridge floor, a stay cable is placed on two third limiting rods and above a fixing block, and the third limiting rods and the fixing block can be driven to move downwards under the gravity effect of the stay cable until the bottom face of the fixing block makes contact with the upper surface of a supporting plate; then a third limiting rod moves to drive a first limiting rod to move through a first rotating rod, the first limiting rod can drive a second limiting rod to move, at the moment, the second limiting rod makes contact with the stay cable, and the stay cable can be clamped and fixed through cooperation of the second limiting rod and the third limiting rod; therefore, the PE jacket of the inhaul cable cannot be damaged in the cable unfolding process.

Description

TECHNICAL FIELD

[0001] The utility model relates to a cable stretching combination trolley, in particular to a cable stretching combination trolley for space-limited bridge deck, belongs to cable-stayed bridge construction technical field. BACKGROUND

[0002] Cable-stayed cable is important load-bearing structure of cable-stayed bridge, in the installation process of long-span cable-stayed bridge cable-stayed cable, because cable-stayed cable body is long, has certain rigidity, generally needs to combine aerial cable stretching and bridge deck cable stretching to pull the anchor head of cable-stayed cable beam end from cable reel to beam segment anchor point position.

[0003] In the patent application publication CN215669040U, a cable-stayed bridge cable stretching trolley is disclosed, which realizes simple and light structure, high flexibility, safe and reliable construction operation and can complete the bridge deck cable stretching construction requirement of cable-stayed cable, and realizes longitudinal traction of anchor head, through the setting of the trolley body, walking wheel and fixed cable buckle device, the cable-stayed cable is fixed through the fixed cable buckle device, so that the cable stretching process forms good protection to the cable-stayed cable anchor head, under the cooperation of the traction device, i.e. the existing technology winch, the utility model can efficiently complete the bridge deck cable stretching construction process of high cable-stayed cable, and the utility model has the characteristics of low cost, simple and light structure, and small operation difficulty.

[0004] In the above patent scheme, although the cable-stayed cable can be fixed through the fixed cable buckle device, the fixed cable buckle device may rub the cable during the movement of the trolley, especially when the trolley turns or changes direction, the friction increases, which causes damage to the PE outer sleeve, and the walking wheel of the device is difficult to perform S-shaped cable stretching.

[0005] Therefore, a cable stretching combination trolley for space-limited bridge deck is proposed. UTILITY MODEL CONTENTS

[0006] The utility model provides a cable stretching combination trolley for space-limited bridge deck, which can fix the cable-stayed cable and ensure that the trolley does not damage the cable PE outer sleeve during cable stretching.

[0007] The utility model is implemented by the following technical scheme: a cable stretching combination trolley for space-limited bridge deck, comprising a support plate, a group of limiting assemblies are arranged on the upper surface of the support plate, and a moving assembly is arranged on the bottom surface of the support plate.

[0008] The limiting assembly comprises two first limiting rods hinged on the upper surface of the support plate, the top end of each of the two first limiting rods is fixed with a second limiting rod, the side close to each of the two first limiting rods is provided with a through groove, the inner wall of each of the two through grooves is fixed with a first rotating rod, the outer surface of each of the two first rotating rods is rotatably connected with a third limiting rod, and one end of the third limiting rod is in contact with the inner wall of the through groove.

[0009] Further, the limiting assembly further comprises a fixing block, and the front and rear sides of the fixing block are respectively hinged to the ends close to the two third limiting rods.

[0010] Further, the upper surface of the support plate is fixed with a spring, and the end of the spring away from the support plate is fixed to the side of the first limiting rod away from the third limiting rod.

[0011] Further, the side close to each of the third limiting rod and the second limiting rod is fixed with a rubber pad, and each rubber pad is provided with anti-skid lines.

[0012] Further, the moving assembly comprises a fixing seat rotatably connected to the bottom surface of the support plate, the bottom end of the fixing seat is fixed with two mounting plates, the inner wall of the hole in the mounting plate is fixed with a second rotating rod, and the outer surface of the second rotating rod is rotatably connected with a roller.

[0013] Further, the bottom surface of the support plate is provided with a mounting groove, the top end of the fixing seat is fixed with a rotating shaft, and the outer surface of the rotating shaft is rotatably connected with the inner wall of the mounting groove.

[0014] The utility model provides a kind of exhibition cable combination trolley for space limited bridge, it has the beneficial effects as follows:

[0015] 1, the exhibition cable combination trolley for space limited bridge, cable-stayed cable is placed on two third limiting rods, the top of fixing block, under the action of the gravity of cable-stayed cable, third limiting rod and fixing block can be moved downwards, until the upper surface of fixing block and support plate are contacted, then the movement of third limiting rod can drive first limiting rod to move by first rotating rod, first limiting rod can drive second limiting rod to move, second limiting rod will contact cable-stayed cable at this time, cable-stayed cable can be clamped and fixed by the cooperation of second limiting rod and third limiting rod, so as to avoid damaging cable PE outer cover during exhibition cable.

[0016] 2, the exhibition cable combination trolley for space limited bridge, by the setting of mounting groove and rotating shaft, each roller can be independently steered, so that the trolley can move freely in narrow space and bridge limited area, especially when S-shaped exhibition cable is needed, by the setting of second rotating rod, support plate can be rotated, so that the center of gravity of trolley can be reduced, stability can be enhanced, and rotation caused by unstable center of gravity during cable-stayed cable tensioning can be prevented. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0019] Figure 3 This is a cross-sectional schematic diagram of the support plate in this utility model;

[0020] Figure 4 For the present utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle.

[0021] Explanation of reference numerals in the attached figures

[0022] 1. Support plate;

[0023] 2. Limiting assembly; 201. First limiting rod; 202. Second limiting rod; 203. Through groove; 204. First rotating rod; 205. Third limiting rod; 206. Fixing block; 207. Spring;

[0024] 3. Moving component; 301. Mounting slot; 302. Rotating shaft; 303. Fixed base; 304. Mounting plate; 305. Second rotating rod; 306. Roller;

[0025] 4. Rubber pad; 5. Anti-slip texture. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figures 1-4 This utility model provides a cable-stayed combination trolley for a space-constrained bridge deck, including a support plate 1, a set of limiting components 2 on the upper surface of the support plate 1, and a moving component 3 on the bottom surface of the support plate 1.

[0028] Please refer to this carefully. Figure 1 and Figure 4The limiting assembly 2 comprises two first limiting rods 201 hingedly connected to the upper surface of the support plate 1, the top end of each first limiting rod 201 is fixed with a second limiting rod 202, one side of each first limiting rod 201 close to each other is provided with a through slot 203, the inner wall of each through slot 203 is fixed with a first rotating rod 204, the outer surface of each first rotating rod 204 is rotatably connected with a third limiting rod 205, and one end of the third limiting rod 205 is in contact with the inner wall of the through slot 203.

[0029] The limiting assembly 2 further comprises a fixed block 206, the front and rear sides of the fixed block 206 are respectively hingedly connected to the ends of the two third limiting rods 205 close to each other.

[0030] The upper surface of the support plate 1 is fixed with a spring 207, and one end of the spring 207 away from the support plate 1 is fixed to one side of the first limiting rod 201 away from the third limiting rod 205.

[0031] One side of each of the third limiting rod 205 and the second limiting rod 202 close to each other is fixed with a rubber pad 4, and each rubber pad 4 is provided with anti-skid lines 5.

[0032] The cable is placed on the two third limiting rods 205 above the fixed block 206, and under the action of the gravity of the cable, the third limiting rod 205 and the fixed block 206 can be moved downward until the fixed block 206 is in contact with the upper surface of the support plate 1, then the movement of the third limiting rod 205 can drive the first limiting rod 201 to move through the first rotating rod 204, and the first limiting rod 201 can drive the second limiting rod 202 to move, at this time, the second limiting rod 202 will be in contact with the cable, and through the cooperation of the second limiting rod 202 and the third limiting rod 205, the cable can be clamped and fixed, so as to avoid damaging the cable PE outer sleeve during the cable stretching process.

[0033] Please refer to Figure 2 and Figure 3 The moving assembly 3 comprises a fixed seat 303 rotatably contacted on the bottom surface of the support plate 1, the bottom end of the fixed seat 303 is fixed with two mounting plates 304, the inner wall of the hole on the mounting plate 304 is fixed with a second rotating rod 305, the outer surface of the second rotating rod 305 is rotatably connected with a roller 306, through the arrangement of the second rotating rod 305, the support plate 1 can be rotated, so as to reduce the center of gravity of the trolley, enhance the stability, and prevent the rotation caused by unstable center of gravity during the cable tensioning process.

[0034] The bottom surface of the support plate 1 is provided with a mounting groove 301, the top end of the fixing base 303 is fixedly provided with a rotating shaft 302, and the outer surface of the rotating shaft 302 is rotationally connected with the inner wall of the mounting groove 301.

[0035] The utility model discloses when using: the cable unwinding device is arranged below the cable tower during construction, the cable in roll is hung on the cable unwinding device, and the beam end anchor cup of the cable is placed with one side downward, the tower end anchor cup is placed upward, the tower end anchor cup is pulled and lifted to the aerial cable guide pipe by the tower crane and winch first, then the beam end anchor head is pulled out and placed on the anchor head trolley, the anchor head trolley is pulled to the front end of the main beam in the direction away from the cable tower by the winch to carry out the cable unwinding, and then the device is placed below the cable.

[0036] Then the cable is placed on the two third limiting rods 205, the upper side of the fixed block 206, under the action of the gravity of the cable, the third limiting rod 205 and the fixed block 206 can be driven to move downwards, until the fixed block 206 contacts with the upper surface of the support plate 1, then the movement of the third limiting rod 205 can drive the first limiting rod 201 to move through the first rotating rod 204, the movement of the first limiting rod 201 can stretch the spring 207, so that the spring 207 generates tension, the first limiting rod 201 can drive the second limiting rod 202 to move, at this moment, the second limiting rod 202 can contact with the cable, the cable can be clamped and fixed through the cooperation of the second limiting rod 202 and the third limiting rod 205, so that the cable PE outer cover is not damaged during the cable unwinding, then when the cable needs to be released, the cable is lifted, at this moment, the first limiting rod 201 can make the second limiting rod 202 gradually away from the cable under the action of the tension of the spring 207 and the second limiting rod 202 pushed by the cable, so that the cable is released.

[0037] Then through the mounting groove 301 and the rotating shaft 302, each roller 306 can be independently steered, so that the trolley can freely move in the narrow space and the limited area of the bridge deck, especially when the S-shaped cable unwinding is needed, through the second rotating rod 305, the support plate 1 can be rotated, so that the center of gravity of the trolley can be reduced, the stability can be enhanced, and the rotation caused by the unstable center of gravity during the cable tensioning can be prevented.

[0038] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A spatially limited bridge deck with a cable spreader combination trolley, comprising a support plate (1), characterized in that: The upper surface of the support plate (1) is provided with a set of limiting assemblies (2), and the bottom surface of the support plate (1) is provided with a moving assembly (3); The limiting assembly (2) comprises two first limiting rods (201) hinged to the upper surface of the support plate (1), the top end of each of the two first limiting rods (201) is fixed with a second limiting rod (202), the side close to the two first limiting rods (201) is provided with a through groove (203), the inner wall of each of the two through grooves (203) is fixed with a first rotating rod (204), the outer surface of each of the two first rotating rods (204) is rotatably connected with a third limiting rod (205), and one end of the third limiting rod (205) is in contact with the inner wall of the through groove (203).

2. A spatially restricted deck with a combination of cables and carriages, according to claim 1, characterized in that: The limiting assembly (2) further comprises a fixed block (206), and the front and rear sides of the fixed block (206) are respectively hinged to the ends close to the two third limiting rods (205).

3. A spatially restricted deck with a combination of cables and jacks according to claim 1, characterized in that: The upper surface of the support plate (1) is fixed with a spring (207), and the end of the spring (207) away from the support plate (1) is fixed to the side of the first limiting rod (201) away from the third limiting rod (205).

4. A spatially restricted deck with a combination of cables and jacks according to claim 1, characterized in that: The side close to the second limiting rod (202) of the third limiting rod (205) is fixed with a rubber pad (4), and the anti-skid lines (5) are arranged on each rubber pad (4).

5. A spatially restricted deck with a combination of cables and jacks according to claim 1, characterized in that: The moving assembly (3) comprises a fixed seat (303) rotatably contacted with the bottom surface of the support plate (1), the bottom end of the fixed seat (303) is fixed with two mounting plates (304), the inner wall of the hole in the mounting plate (304) is fixed with a second rotating rod (305), and the outer surface of the second rotating rod (305) is rotatably connected with a roller (306).

6. A spatially restricted bridge deck fairing combination trolley according to claim 5, characterized in that: The bottom surface of the support plate (1) is provided with a mounting groove (301), the top end of the fixed seat (303) is fixed with a rotating shaft (302), and the outer surface of the rotating shaft (302) is rotatably connected with the inner wall of the mounting groove (301).

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