An interim suspension device for a self-anchored suspension bridge and its usage method

Abstract

The present invention belongs to the technical field of bridge construction, and in particular relates to a temporary suspension cable device for a self-anchored suspension bridge, which includes a steel box girder. The side wall of the steel box girder is fixedly connected with a jack through a connecting mechanism. The output end of the jack is fixedly connected with a lifting plate. Two vertical plates are fixedly connected to the upper side wall of the lifting plate. The same rope drum is rotatably connected to the side walls of the two vertical plates on the opposite side. Control rods are fixedly connected to both ends of the rope drum. A steel strand is sleeved outside the rope drum. A main cable is arranged above the steel box girder, and a tool cable clamp is sleeved outside the main cable. When in use, the present invention can change the length of the temporary suspension cable according to the height between the steel box girder and the main cable, so that it is not necessary to cut a certain length of the temporary suspension cable, avoiding the problem of material waste caused by the mismatch of the length of the temporary suspension cable, and the jack can be disassembled and assembled conveniently and quickly, with simple operation, improving the convenience of the operation of the operator.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge construction, and in particular relates to a temporary suspension cable device for a self-anchored suspension bridge and a using method thereof. Background Art

[0002] A self-anchored suspension bridge is a suspension bridge system that does not have a gravity anchor but anchors the main cable at the end of the stiffening girder to bear the horizontal and vertical components of the end of the main cable. The construction of its cable system mainly includes: installation of the main cable saddle, installation of the dispersion cable saddle, construction of the main cable system, cable compacting, construction of the suspension system, wire winding and painting, etc.

[0003] In the process of implementing this application, the inventor found that there are at least the following problems in this technology. After the cable compacting construction of the self-anchored suspension bridge is completed, it is necessary to install temporary suspension cables. After the catwalk is changed to a hanging construction, through the installation of temporary suspension cables, it can assist in separating the main cable later to carry out the construction of permanent suspension cables. When installing temporary suspension cables, the number of temporary suspension cables is generally multiple (commonly 4-5), and there are certain requirements for the positions and angles of each temporary suspension cable. Generally, a continuous jack is used for the tensioning drive end of the steel strand, which is generally based on the steel box girder and installed after adjusting the angle. However, this method has the following disadvantages: First, since the number of temporary suspension cables is multiple, the number of jacks required is also large. The traditional method of using bolts and other connectors to fix the jacks is inconvenient for disassembly and assembly. Second, since the lengths of the temporary suspension cables are different, the operator also needs to cut a certain length of the temporary suspension cable according to the use requirements, which is not only time-consuming and laborious, but also the lengths of the cut temporary suspension cables are different, which will cause the scrapping of the temporary suspension cable and waste of materials.

[0004] Therefore, we propose a temporary suspension cable device for a self-anchored suspension bridge and a using method thereof to solve the above problems. Summary of the Invention

[0005] The purpose of the invention is to provide a temporary suspension cable device for a self-anchored suspension bridge and a using method thereof for the above problems.

[0006] To achieve the above object, the present invention adopts the following technical solutions: A temporary sling device for a self-anchored suspension bridge, including a steel box girder. The side wall of the steel box girder is fixedly connected with a jack through a connecting mechanism. The output end of the jack is fixedly connected with a lifting plate. The upper side wall of the lifting plate is fixedly connected with two vertical plates. The side walls of the two vertical plates on the opposite side are rotatably connected with the same rope drum. Both ends of the rope drum are fixedly connected with control rods. A steel strand is sleeved outside the rope drum. There is a main cable above the steel box girder. A tool cable clip is sleeved outside the main cable. The steel strand is fixedly connected through an anchor and the tool cable clip. The front end of the control rod on the front side extends out of the vertical plate and is fixedly connected with a rotating cylinder. A round plate is inserted into the rotating cylinder. Two pin shafts are fixedly connected to the left side wall of the round plate. A snap ring is fixedly connected to the outer wall of the vertical plate. A plurality of card slots matching the pin shafts are opened on the side wall of the snap ring. A pull rod is fixedly connected to the side wall of the round plate. The end of the pull rod extending out of the rotating cylinder is fixedly connected with a pull plate. The same first spring is fixedly connected to the side walls of the round plate and the rotating cylinder on the opposite side. The pull rod is a square rod.

[0007] Preferably, the connecting mechanism includes a fixing plate fixedly connected to the upper side wall of the jack. A plug rod is fixedly connected to the lower side wall of the fixing plate. A plug sleeve matching the plug rod is fixedly connected to the upper side wall of the steel box girder. A positioning groove is opened in the inner wall of the plug sleeve and a positioning plate is inserted into the positioning groove. A plurality of positioning rods are fixedly connected to the side wall of the positioning plate. A plurality of positioning grooves matching the positioning rods are opened on the rod wall of the plug rod. A cross bar is fixedly connected to the side wall of the positioning plate. The right end of the cross bar extends out of the positioning groove. A cylinder is fixedly connected to the side wall of the plug sleeve. A locking groove is opened in the inner wall of the cylinder and a locking plate is inserted into the locking groove. A plurality of teeth are fixedly connected to the side walls of the locking plate and the cross bar on the opposite side. A support rod is fixedly connected to the side wall of the locking plate. The side wall of the support rod extending out of the locking groove is fixedly connected with a placing plate and the same second spring is fixedly connected between the placing plate and the cylinder.

[0008] Preferably, an installation frame is fixedly connected to the side wall of the jack. A threaded cylinder is rotatably connected to the side wall of the installation frame. A motor is fixedly connected to the side wall of the installation frame. The output end of the motor is connected to the threaded cylinder through a bevel gear assembly. A threaded rod is threadedly sleeved in the threaded cylinder. One end of the threaded rod extends out of the installation frame and is fixedly connected with a fixing frame. Two wire wheels are fixedly connected to the inner wall of the fixing frame. The steel strand is located between the two wire wheels.

[0009] Preferably, a connecting plate is fixedly connected to the side wall of the rear vertical plate. An operating rod is rotatably connected to the side wall of the connecting plate. A first bevel gear is fixedly connected to the lower end of the operating rod. A second bevel gear is fixedly connected to the rear end of the control rod on the rear side. A handle is fixedly connected to the upper end of the operating rod.

[0010] Preferably, a reinforcing plate is provided on the upper side wall of the fixing plate, and a plurality of triangular support frames are fixedly connected to the side wall between the reinforcing plate and the fixing plate.

[0011] Preferably, a positioning slide bar is fixedly connected to the side wall of the mounting frame, and a positioning chute matching the positioning slide bar is provided on the rod wall of the threaded pipe.

[0012] Preferably, two reinforcing blocks are fixedly connected between the lifting plate and the vertical plate.

[0013] A method for using a self-anchored suspension bridge temporary sling device, the method comprising the following steps:

[0014] S1. Insert the insertion rod into the insertion cylinder, and then press the cross bar. The cross bar drives the clamping rod to insert into the clamping groove, thereby fixing the jack.

[0015] S2. Sleeve the tool cable clip on the main cable, and then connect the tool cable clip and the steel strand outside the cable drum through the anchor.

[0016] S3. Pull the pull plate away from the rotating cylinder, and then rotate the operating rod. The operating rod controls the rotation of the cable drum through the bevel gear assembly, thereby recovering the excess steel strand.

[0017] S4. Start the jack. The jack controls the lifting plate to move downward. The lifting plate drives the cable drum to move downward through the vertical plate, and pulls the steel strand and the main cable through the cable drum.

[0018] Compared with the existing technology, the advantages of a self-anchored suspension bridge temporary sling device and its use method are as follows:

[0019] 1. By providing the steel box girder, jack, lifting plate, vertical plate, cable drum, control rod, steel strand, rotating cylinder, round plate, pin, snap ring, and pull rod, during use, the length of the temporary sling can be changed according to the height between the steel box girder and the main cable, so that it is not necessary to cut a certain length of the temporary sling, avoiding the problem of material waste caused by the mismatch of the length of the temporary sling.

[0020] 2. By providing the fixing plate, insertion rod, insertion cylinder, positioning plate, clamping rod, cross bar, cylinder, locking plate, teeth, support rod, and placing plate, the jack can be disassembled and assembled conveniently and quickly, with simple operation, improving the convenience of the operator's work. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 That is a schematic structural diagram of a self-anchored suspension bridge temporary sling device and its use method provided by the present invention;

[0022] Figure 2 Figure 2 That is an enlarged schematic view of part A in 1;

[0023] Figure 3 It is an enlarged schematic view of part B in 1;

[0024] Figure 4 It is a schematic diagram of the positional relationship of the rope drum in a temporary sling device for a self-anchored suspension bridge and its usage method provided by the present invention;

[0025] Figure 5 It is a schematic diagram of the fixing structure of the main cable in a temporary sling device for a self-anchored suspension bridge and its usage method provided by the present invention.

[0026] In the figure: 1, steel box girder; 2, jack; 3, lifting plate; 4, vertical plate; 5, rope drum; 6, control rod; 7, steel strand; 8, rotating drum; 9, circular plate; 10, pin; 11, snap ring; 12, pull rod; 13, pull plate; 14, fixing plate; 15, insertion rod; 16, insertion cylinder; 17, positioning plate; 18, positioning rod; 19, cross bar; 20, cylinder; 21, locking plate; 22, tooth; 23, support rod; 24, placement plate; 25, mounting bracket; 26, threaded cylinder; 27, threaded rod; 28, fixing frame; 29, wire pulley; 30, connecting plate; 31, operating rod; 32, positioning slide bar. Specific embodiments

[0027] The following embodiments are only for illustrative purposes and are not intended to limit the scope of the present invention.

[0028] As Figures 1-5 shown, a temporary sling device for a self-anchored suspension bridge includes a steel box girder 1. The side wall of the steel box girder 1 is fixedly connected with a jack 2 through a connecting mechanism. The output end of the jack 2 is fixedly connected with a lifting plate 3. The upper side wall of the lifting plate 3 is fixedly connected with two vertical plates 4. The side walls of the two vertical plates 4 on the opposite side are rotatably connected with the same rope drum 5. Both ends of the rope drum 5 are fixedly connected with control rods 6. A steel strand 7 is sleeved outside the rope drum 5. A main cable is arranged above the steel box girder 1. A tool cable clamp is sleeved outside the main cable. The steel strand 7 is fixedly connected through an anchor and the tool cable clamp. The front end of the control rod 6 on the front side extends out of the vertical plate 4 and is fixedly connected with a rotating drum 8. A circular plate 9 is inserted into the rotating drum 8. Two pins 10 are fixedly connected to the left side wall of the circular plate 9. The outer wall of the vertical plate 4 is fixedly connected with a snap ring 11. A plurality of card slots matching the pins 10 are arranged on the side wall of the snap ring 11. A pull rod 12 is fixedly connected to the side wall of the circular plate 9. The end of the pull rod 12 extending out of the rotating drum 8 is fixedly connected with a pull plate 13. The side walls of the circular plate 9 and the rotating drum 8 on the opposite side are fixedly connected with the same first spring. The pull rod 12 is a square rod.

[0029] The connecting mechanism includes a fixing plate 14 fixedly connected to the upper side wall of the jack 2. A plug rod 15 is fixedly connected to the lower side wall of the fixing plate 14. An insertion cylinder 16 that matches the plug rod 15 is fixedly connected to the upper side wall of the steel box girder 1. A positioning groove is formed in the inner wall of the insertion cylinder 16, and a positioning plate 17 is inserted into the positioning groove. A plurality of clamping rods 18 are fixedly connected to the side wall of the positioning plate 17. A plurality of clamping grooves that match the clamping rods 18 are formed in the rod wall of the plug rod 15. A cross bar 19 is fixedly connected to the side wall of the positioning plate 17, and the right end of the cross bar 19 extends out of the positioning groove. A cylinder 20 is fixedly connected to the side wall of the insertion cylinder 16. A locking groove is formed in the inner wall of the cylinder 20, and a locking plate 21 is inserted into the locking groove. A plurality of teeth 22 are fixedly connected to the opposite side walls of the locking plate 21 and the cross bar 19. A support rod 23 is fixedly connected to the side wall of the locking plate 21. A placement plate 24 is fixedly connected to the side wall of the support rod 23 extending out of the locking groove, and the same second spring is fixedly connected between the placement plate 24 and the cylinder 20. It can disassemble and assemble the jack conveniently and quickly, with simple operation, improving the convenience of the operator's work.

[0030] An installation frame 25 is fixedly connected to the side wall of the jack 2. A threaded cylinder 26 is rotatably connected to the side wall of the installation frame 25. A motor is fixedly connected to the side wall of the installation frame 25, and the output end of the motor is connected to the threaded cylinder 26 through a bevel gear assembly. A threaded rod 27 is threadedly sleeved in the threaded cylinder 26. One end of the threaded rod 27 extends out of the installation frame 25 and is fixedly connected to a fixing frame 28. Two wire wheels 29 are fixedly connected to the inner wall of the fixing frame 28. The steel strand 7 is located between the two wire wheels 29, which can change the direction of the steel strand 7, so as to stretch the steel strand at different angles.

[0031] A connecting plate 30 is fixedly connected to the side wall of the rear vertical plate 4. An operating rod 31 is rotatably connected to the side wall of the connecting plate 30. A first bevel gear is fixedly connected to the lower end of the operating rod 31. A second bevel gear is fixedly connected to the rear end of the rear control rod 6. A handle is fixedly connected to the upper end of the operating rod 31, which is convenient for rotating the rope cylinder 5.

[0032] A reinforcing plate is provided on the upper side wall of the fixing plate 14, and a plurality of triangular support frames are fixedly connected between the side walls of the reinforcing plate and the fixing plate 14, improving the support strength of the fixing plate 14.

[0033] A positioning slide bar 32 is fixedly connected to the side wall of the installation frame 25. A positioning chute that matches the positioning slide bar 32 is formed in the rod wall of the threaded pipe. Through the mutual cooperation of the positioning slide bar 32 and the positioning chute, the rotation of the threaded rod is avoided, so that the threaded rod can only move left and right.

[0034] Two reinforcing blocks are fixedly connected between the lifting plate 3 and the vertical plate 4, increasing the connection stability and support performance between the lifting plate 3 and the vertical plate 4.

[0035] A method for using a temporary sling device of a self-anchored suspension bridge, the method comprising the following steps:

[0036] S1. Insert the insertion rod 15 into the insertion cylinder 16, and then press the cross bar 19. The cross bar 19 drives the clamping rod 18 to insert into the clamping groove, thereby fixing the jack 2;

[0037] S2. Sleeve the tool cable clip on the main cable, and then connect the tool cable clip and the steel strand 7 outside the cable drum 5 through the anchor;

[0038] S3. Pull the pull plate 13 in the direction away from the rotating drum 8, and then rotate the operating rod 31. The operating rod 31 controls the rotation of the cable drum 5 through the bevel gear assembly, thereby recovering the redundant steel strand 7;

[0039] S4. Start the jack 2. The jack 2 controls the lifting plate 3 to move downward. The lifting plate 3 drives the cable drum 5 to move downward through the vertical plate 4, and pulls the steel strand 7 and the main cable through the cable drum 5.

[0040] Now, the operating principle of the present invention is described as follows: Insert the insertion rod 15 into the insertion cylinder 16, and then press the cross bar 19. The cross bar 19 drives the clamping rod 18 to insert into the clamping groove, thereby fixing the jack 2; Sleeve the tool cable clip on the main cable, and then connect the tool cable clip and the steel strand 7 outside the cable drum 5 through the anchor; Pull the pull plate 13 in the direction away from the rotating drum 8, and then rotate the operating rod 31. The operating rod 31 controls the rotation of the cable drum 5 through the bevel gear assembly, thereby recovering the redundant steel strand 7; Start the jack 2. The jack 2 controls the lifting plate 3 to move downward. The lifting plate 3 drives the cable drum 5 to move downward through the vertical plate 4, and pulls the steel strand 7 and the main cable through the cable drum 5. This device can, when in use, change the length of the temporary sling according to the height between the steel box girder and the main cable, so that it is not necessary to cut a certain length of the temporary sling, avoiding the problem of material waste caused by the mismatch of the length of the temporary sling and enabling the convenient and rapid disassembly and assembly of the jack. The operation is simple, improving the convenience of the operator's work.

[0041] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A temporary sling device for a self-anchored suspension bridge, comprising a steel box girder (1), characterized in that, The side wall of the steel box girder (1) is fixedly connected with a jack (2) through a connecting mechanism. The output end of the jack (2) is fixedly connected with a lifting plate (3). Two vertical plates (4) are fixedly connected to the upper side wall of the lifting plate (3). The same rope drum (5) is rotatably connected to the side walls of the two vertical plates (4) on the opposite side. Control rods (6) are fixedly connected to both ends of the rope drum (5). A steel strand (7) is sleeved outside the rope drum (5). A main cable is arranged above the steel box girder (1). A tool cable clip is sleeved outside the main cable. The steel strand (7) is fixedly connected through an anchor and the tool cable clip. The front end of the control rod (6) on the front side extends out of the vertical plate (4) and is fixedly connected with a rotating drum (8). A round plate (9) is inserted into the rotating drum (8). Two latch pins (10) are fixedly connected to the left side wall of the round plate (9). A retaining ring (11) is fixedly connected to the outer wall of the vertical plate (4). A plurality of card slots matching the latch pins (10) are formed in the side wall of the retaining ring (11). A pull rod (12) is fixedly connected to the side wall of the round plate (9). One end of the pull rod (12) extending out of the rotating drum (8) is fixedly connected with a pull plate (13). The same first spring is fixedly connected to the side walls of the round plate (9) and the rotating drum (8) on the opposite side. The pull rod (12) is a square rod.

2. The temporary sling device for a self-anchored suspension bridge according to claim 1, characterized in that The connecting mechanism includes a fixing plate (14) fixedly connected to the upper side wall of the jack (2). A plug rod (15) is fixedly connected to the lower side wall of the fixing plate (14). A plug cylinder (16) matching the plug rod (15) is fixedly connected to the upper side wall of the steel box girder (1). A positioning groove is formed in the inner wall of the plug cylinder (16), and a positioning plate (17) is inserted into the positioning groove. A plurality of positioning rods (18) are fixedly connected to the side wall of the positioning plate (17). A plurality of positioning slots matching the positioning rods (18) are formed in the rod wall of the plug rod (15). A cross bar (19) is fixedly connected to the side wall of the positioning plate (17). The right end of the cross bar (19) extends out of the positioning groove. A cylinder (20) is fixedly connected to the side wall of the plug cylinder (16). A locking groove is formed in the inner wall of the cylinder (20), and a locking plate (21) is inserted into the locking groove. A plurality of teeth (22) are fixedly connected to the side walls of the locking plate (21) and the cross bar (19) on the opposite side. A support rod (23) is fixedly connected to the side wall of the locking plate (21). One end of the support rod (23) extending out of the locking groove is fixedly connected with a placement plate (24), and the same second spring is fixedly connected between the placement plate (24) and the cylinder (20).

3. The temporary sling device of a self-anchored suspension bridge according to claim 2, characterized in that, The side wall of the jack (2) is fixedly connected with a mounting frame (25). The side wall of the mounting frame (25) is rotatably connected with a threaded cylinder (26). The side wall of the mounting frame (25) is fixedly connected with a motor. The output end of the motor is connected to the threaded cylinder (26) through a bevel gear assembly. A threaded rod (27) is threadedly sleeved in the threaded cylinder (26). One end of the threaded rod (27) extends out of the mounting frame (25) and is fixedly connected with a fixed frame (28). The inner wall of the fixed frame (28) is fixedly connected with two wire wheels (29). The steel strand (7) is located between the two wire wheels (29).

4. The temporary sling device for a self-anchored suspension bridge according to claim 3, wherein The side wall of the rear vertical plate (4) is fixedly connected with a connecting plate (30). The side wall of the connecting plate (30) is rotatably connected with an operating rod (31). The lower end of the operating rod (31) is fixedly connected with a first bevel gear. The rear end of the rear control rod (6) is fixedly connected with a second bevel gear. The upper end of the operating rod (31) is fixedly connected with a handle.

5. The temporary sling device for a self-anchored suspension bridge according to claim 4, characterized in that, A reinforcing plate is arranged on the upper side wall of the fixed plate (14). A plurality of triangular support frames are fixedly connected between the side walls of the reinforcing plate and the fixed plate (14).

6. The temporary sling device for a self-anchored suspension bridge according to claim 4, wherein The side wall of the mounting frame (25) is fixedly connected with a positioning slide bar (32). A positioning chute matching the positioning slide bar (32) is formed in the rod wall of the threaded rod (27).

7. The temporary sling device for a self-anchored suspension bridge according to claim 4, characterized in that Two reinforcing blocks are fixedly connected between the lifting plate (3) and the vertical plate (4).

8. A method for using the temporary sling device of a self-anchored suspension bridge according to any one of claims 4-7, characterized in that, This method comprises the following steps: S1. Insert the insertion rod (15) into the insertion cylinder (16), and then press the cross bar (19). The cross bar (19) drives the clamping rod (18) to insert into the clamping groove, thereby fixing the jack (2). S2. Sleeve the tool cable clip on the main cable, and then connect the tool cable clip and the steel strand (7) outside the cable drum (5) through the anchor. S3. Pull the pull plate (13) in the direction away from the rotating drum (8), and then rotate the operating rod (31). The operating rod (31) controls the rotation of the cable drum (5) through the bevel gear assembly, thereby recovering the redundant steel strand (7). S4. Start the jack (2). The jack (2) controls the downward movement of the lifting plate (3). The lifting plate (3) drives the cable drum (5) to move downward through the vertical plate (4), and pulls the steel strand (7) and the main cable through the cable drum (5).

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