Box girder lifting appliance capable of lifting in multiple directions

Abstract

The utility model relates to the technical field of box girder lifting appliances, in particular to a box girder lifting appliance capable of lifting in multiple directions, which comprises a lifting mounting plate and a rotating roller, a mooring rope is wound on the surface of the rotating roller, a mounting component is detachably mounted at the bottom end of the mooring rope, and a cross-shaped lifting plate is detachably mounted in the mounting component. The bottoms of the four side supports of the cross-shaped hoisting plate are connected with a plurality of suction cups, and sliding plates are transversely arranged at the ends of the four side supports of the cross-shaped hoisting plate in a sliding mode. Adsorption clamping force is provided for the top of the box girder structure through the multiple suction cups on the four side supports of the cross-shaped hoisting plate, lifting clamping force on the slurry hole position and the side edge position of the box girder structure is completed through the supporting plates at the multiple positions, and multi-directional clamping and fixing of the box girder structure are completed. The situation that the clamping position is single is avoided, multi-directional clamping and lifting are achieved, then the situation that due to the single clamping position, clamping of the box girder is not stable is avoided, and the using stability of the box girder lifting appliance is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of box beam hoisting devices, in particular to a box beam hoisting device which can be hoisted in multiple directions. Background Art

[0002] Bridge erection is an important transportation project. Due to the large total length of the bridge, it is generally manufactured in sections. The box beams are cast at the work site, and the prefabricated box beams are transported to the site for installation by hoisting. A hoist refers to a device for lifting heavy objects in lifting machinery. The most commonly used hoists for lifting finished objects are hooks, slings, rings, lifting suction cups, clamps and forks, which are widely used in the lifting and hoisting industry. For the transportation of box beams, hoists are usually used to speed up the transportation speed and hoisting efficiency. Before the hoisting and transportation, the box beam needs to be fixed by a clamping structure or a fixed structure.

[0003] In the process of fixing the box girder, the existing box girder hoists often use four-corner lifting and clamping to fix some box girder structures with larger lateral dimensions, or use top-end adsorption clamping to fix some box girder structures with top surfaces close to square. Regardless of four-corner lifting and clamping or top-end adsorption clamping, it only clamps and fixes a specific type of box girder at a single position. In the subsequent lifting process, the box girder will be insufficiently clamped due to the single clamping position, resulting in instability, which will lead to excessive shaking of the box girder in the subsequent lifting process, affecting the stability of the box girder hoist.

[0004] Therefore, it is necessary to invent a box girder sling that can be lifted in all directions to solve the above problems. Utility Model Content

[0005] In order to solve the shortcomings of the prior art, the purpose of the utility model is to provide a box girder hoist that can be lifted in multiple directions, which solves the problem that in the prior art, whether it is the four-corner lifting clamping or the top adsorption clamping, it only clamps and fixes the box girder of a specific type at a single position. In the subsequent lifting process, the box girder will be insufficiently clamped due to the single clamping position, resulting in instability, which will lead to excessive shaking of the box girder in the subsequent lifting process, affecting the stability of the box girder hoist.

[0006] In order to achieve the above objectives, the utility model adopts the following technical solutions:

[0007] The cam is a kind of box girder hoisting device which can be lifted in multiple directions, comprising a hoisting mounting plate which can be detachably mounted on a top beam and a rotating roller which is rotatably arranged at the center of the top surface of the hoisting mounting plate, the surface of the rotating roller is wound with a cable which can slide longitudinally and pass through the center of the hoisting mounting plate, the bottom end of the cable is detachably mounted with a mounting assembly, a cross hoisting plate is detachably mounted in the mounting assembly, the bottoms of four side branches of the cross hoisting plate are connected with a plurality of vacuum suction cups, and the plurality of suction cups can be adsorbed and connected with different positions on the top of the box girder, the ends of the four side branches of the cross hoisting plate are transversely slidably provided with slide plates which can lock the sliding distance, the end of each slide plate which is away from the center of the cross hoisting plate can be detachably sleeved with a sleeve plate, the sleeve plate is symmetrically connected with screws on both sides, and a slip ring which can lock the sliding distance is transversely slidably sleeved in each of the screws, and a supporting plate which can be inserted into a slurry hole of the box girder and abut against the top of the slurry hole or the side of the box girder is installed at the bottom end of the slip ring.

[0008] As a preferred solution of the utility model, the installation assembly includes a top plate detachably installed on the bottom end of the cable, four vertical rods arranged at the four corners of the bottom end of the top plate, and a bottom plate arranged between the bottom ends of the four vertical rods, and the cross hanging plate is detachably installed on the top end of the bottom plate.

[0009] As a preferred solution of the utility model, an airbag is detachably installed at the top center of the cross hanging plate, and the top center of the airbag is connected to an exhaust pipe detachably connected to a negative pressure pump, and the side walls of the exhaust pipe are connected to exhaust pipes for exhausting the airbag, and the side walls of the airbag are connected to four extended horizontal tubes, and the bottom sides of the side walls of the extended horizontal tubes are adapted to be connected to connecting vertical tubes at each suction cup, and the connecting vertical tubes longitudinally penetrate the cross hanging plate, and the suction cup is detachably installed at the bottom end of the connecting vertical tube.

[0010] As a preferred solution of the utility model, the four side branches of the cross hanging plate can be detachably mounted with an extension plate at one end away from the center, the slide plate is slidably inserted into the extension plate transversely, and the sliding distance of the slide plate is controllable.

[0011] As a preferred solution of the utility model, nuts are threadedly sleeved on both sides of the screw rod on the slip ring, and the two nuts can lock the slip ring in the lateral position of the screw rod. A connecting rod is connected to the bottom side of the side wall of the slip ring, and the top end of the support plate is detachably connected to the bottom end of the connecting rod.

[0012] As a preferred solution of the utility model, a lifting mounting seat that can be detachably mounted on the top beam is provided at the four corners of the lifting mounting plate, a first fastening plate is provided between two adjacent side walls of the four side branches of the cross lifting plate, and a second fastening plate is provided between one adjacent side walls of the four extension plates.

[0013] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0014] In the utility model, in the process of clamping and fixing the box girder with the hoist, multiple suction cups on the bottom surfaces of the four side supports on the cross lifting plate are used to make adsorption contact with different positions of the top of the box girder in multiple directions, and the suction cups are adsorbed and connected with the top of the box girder by vacuum suction, so as to provide adsorption and clamping force for the top of the box girder; at the same time, the lateral sliding length of the two slide plates in the length direction at the end of the cross lifting plate can be changed to adapt to box girder structures of different lengths, and then the spacing between the two slip rings on the symmetrical sides can be changed to adapt to the slurry hole position of different box girder structures, and the lifting and clamping force in the length direction can be completed by inserting the support plate into the slurry hole of the box girder and abutting against the top of the slurry hole, and the width can be changed to adapt to the slurry hole position of the box girder structure. The lateral sliding length of the two slides in the direction at the end of the cross lifting plate can adapt to box beam structures of different widths, and the lifting and clamping force in the width direction is completed by abutting the side of the support plate with the box beam structure, and finally the top of the box beam structure is provided with adsorption and clamping force by multiple suction cups of the four side branches of the cross lifting plate, and the lifting and clamping force at the slurry hole and the side of the box beam structure is completed by the support plates at multiple positions, so as to complete the multi-directional clamping and fixing of the box beam structure, avoid the single clamping position to realize multi-directional clamping and lifting, and thus avoid the unstable clamping of the box beam due to the single clamping position, and thus avoid the excessive shaking of the box beam in the subsequent lifting process, thereby improving the stability of the box beam hoist. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall structure of the utility model from another viewing angle;

[0017] Figure 3 It is a schematic diagram of the plan view structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the plan view of the structure of the utility model;

[0019] Figure 5 It is a schematic diagram of the structure of the utility model when viewed from below.

[0020] Description of reference numerals:

[0021] 1. Lifting installation plate; 2. Lifting installation seat; 3. Roller; 4. Cable; 5. Top plate; 6. Vertical rod; 7. Bottom plate; 8. Cross lifting plate; 9. Air bag; 10. Exhaust pipe; 11. Exhaust pipe; 12. Extended horizontal pipe; 13. Connecting vertical pipe; 14. Suction cup; 15. Extension plate; 16. Slide plate; 17. Sleeve plate; 18. Screw; 19. Slip ring; 20. Connecting rod; 21. Support plate; 22. Nut; 23. First fastening plate; 24. Second fastening plate. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0023] The utility model provides Figure 1-Figure 5 The box girder hoist shown in the figure can be lifted in multiple directions, including a hoisting installation plate 1 detachably mounted on the top beam and a roller 3 rotatably arranged at the center of the top surface of the hoisting installation plate 1, a cable 4 which can slide longitudinally and pass through the center of the hoisting installation plate 1 is wound on the surface of the roller 3, a mounting assembly is detachably mounted on the bottom end of the cable 4, a cross hoisting plate 8 is detachably mounted in the mounting assembly, a plurality of vacuum suction cups 14 are connected to the bottom of the four side branches of the cross hoisting plate 8, and the plurality of suction cups 14 can be adsorbed and connected to different positions on the top of the box girder, and slide plates 16 with lockable sliding distances are arranged at the ends of the four side branches of the cross hoisting plate 8 for transverse sliding, and each slide plate 16 is away from the cross hoisting plate One end of the center of 8 is detachably sleeved with a sleeve plate 17, and screw rods 18 are connected to the symmetrical sides of the sleeve plate 17. Each screw rod 18 is laterally slidably sleeved with a slip ring 19 that can lock the sliding distance. The bottom end of the slip ring 19 is installed with a support plate 21 that can be inserted into the slurry hole of the box girder and abut against the top of the slurry hole or the side of the box girder. Before lifting, the lifting installation plate 1 is installed and connected to the top beam on the bridge through the lifting installation seat 2, thereby fixing the position of the entire box girder hoisting device, and then the motor on the lifting installation plate 1 is driven to drive the roller 3 to rotate, thereby completing the retraction and release of the cable 4, thereby changing the longitudinal position of the cross lifting plate 8, and completing the lifting and transportation of the box girder structure.

[0024] The installation assembly includes a top plate 5 detachably installed on the bottom end of the cable 4, four vertical rods 6 arranged at the four corners of the bottom end of the top plate 5, and a bottom plate 7 arranged between the bottom ends of the four vertical rods 6. The cross hanging plate 8 is detachably installed on the top of the bottom plate 7. The cross hanging plate 8 is installed on the top of the bottom plate 7, and its four side branches are respectively inserted between the four vertical rods 6, thereby improving the installation tightness of the cross hanging plate 8 and the installation assembly.

[0025] An airbag 9 is detachably installed at the center of the top of the cross hanging plate 8, and a vacuum pipe 10 detachably connected to a negative pressure pump is connected to the center of the top of the airbag 9. An exhaust pipe 11 for exhausting the airbag 9 is connected to the side walls around the vacuum pipe 10, and four extended horizontal tubes 12 are connected to the side walls around the airbag 9. A connecting vertical tube 13 is connected to each suction cup 14 at the bottom side of the side wall around the extended horizontal tube 12. The connecting vertical tube 13 penetrates the cross hanging plate 8 longitudinally, and the suction cup 14 is detachably installed at the bottom end of the connecting vertical tube 13. The negative pressure pump exhausts the airbag 9, and then vacuumizes the multiple suction cups 14 through the multiple extended horizontal tubes 12 and the connecting vertical tubes 13, so that the multiple suction cups 14 complete vacuum adsorption at different positions on the top of the box beam structure, thereby realizing adsorption and clamping of the top of the box beam structure.

[0026] The four side branches of the cross hanging plate 8 are detachably installed with extension plates 15 at one end away from the center. The slide plate 16 slides transversely through the extension plate 15, and the sliding penetration distance of the slide plate 16 is controllable. The slide plate 16 slides transversely in the extension plate 15, thereby changing the distance between the sleeve plate 17 and the center of the cross hanging plate 8, that is, changing the transverse distance between the two sleeve plates 17 in the symmetrical position, which is suitable for box beam structures of different lengths and widths.

[0027] The screw rod 18 is located on both sides of the slip ring 19 and is threaded with nuts 22. The two nuts 22 can lock the slip ring 19 in the lateral position of the screw rod 18. A connecting rod 20 is connected to the bottom side of the side wall of the slip ring 19. The top end of the support plate 21 is detachably connected to the bottom end of the connecting rod 20. The slip ring 19 slides along the screw rod 18, thereby changing the lateral spacing between the two slip rings 19 on the symmetrical side. It is suitable for pulp holes at different positions in the box girder structure. When the support plate 21 is inserted into the pulp hole and abuts against the top of the pulp hole, the position of the slip ring 19 on the screw rod 18 is locked by rotating the two nuts 22 on both sides.

[0028] A lifting mounting seat 2 which can be detachably mounted on the top beam is provided at the four corners of the lifting mounting plate 1. A first fastening plate 23 is provided between two adjacent side walls of the four side branches of the cross lifting plate 8, and a second fastening plate 24 is provided between adjacent side walls of the four extension plates 15. The first fastening plate 23 can improve the connection tightness between the four side branches of the cross lifting plate 8, and the second fastening plate 24 can improve the connection tightness between the four extension plates 15.

[0029] In the utility model, in the process of clamping and fixing the box girder with the sling, the multiple suction cups 14 on the bottom surfaces of the four side branches on the cross hanging plate 8 are used to make adsorption contact with different positions of the top of the box girder in multiple directions, and the suction cups 14 are adsorbed and connected with the top of the box girder by vacuum suction, so as to provide adsorption and clamping force for the top of the box girder; at the same time, the lateral sliding length of the two slide plates 16 in the length direction at the end of the cross hanging plate 8 can be changed to adapt to box girder structures of different lengths, and then the spacing between the two slip rings 19 on both sides of the symmetry can be changed to adapt to the slurry hole position of different box girder structures, and the lifting and clamping force in the length direction is completed by inserting the support plate 21 into the slurry hole of the box girder and abutting against the top of the slurry hole, and the width can be changed to adapt to the slurry hole position of the box girder structure. The lateral sliding length of the two slides 16 in the degree direction at the end of the cross lifting plate 8 is used to adapt to box beam structures of different widths, and the lifting and clamping force in the width direction is completed by abutting the support plate 21 with the side of the box beam structure, and finally the top of the box beam structure is provided with adsorption and clamping force by the multiple suction cups 14 of the four side branches of the cross lifting plate 8, and the lifting and clamping force at the slurry hole and the side of the box beam structure is completed by the support plates 21 at multiple positions, so as to complete the multi-directional clamping and fixing of the box beam structure, avoid the single clamping position to realize multi-directional clamping and lifting, and thus avoid the unstable clamping of the box beam due to the single clamping position, and thus avoid the excessive shaking of the box beam in the subsequent lifting process, thereby improving the stability of the box beam hoist.

[0030] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A box girder lifting device capable of lifting in multiple directions, characterized in that: The invention comprises a lifting installation plate (1) which is detachably mounted on the top beam, and a rotating roller (3) which is rotatably arranged at the center of the top surface of the lifting installation plate (1), the surface of the rotating roller (3) being wound with a cable (4) which can slide longitudinally and pass through the center of the lifting installation plate (1), the bottom end of the cable (4) being detachably mounted with an installation component, the installation component being detachably mounted with a cross lifting plate (8), the bottoms of the four side branches of the cross lifting plate (8) being connected with a plurality of vacuum suction cups (14), the plurality of suction cups (14) being able to be adsorbed and connected with different positions on the top of the box beam. The ends of the four side branches of the cross hanging plate (8) are all provided with slide plates (16) with a lockable sliding distance for transverse sliding, and one end of each slide plate (16) away from the center of the cross hanging plate (8) is detachably provided with a sleeve plate (17), and screw rods (18) are connected to the symmetrical sides of the sleeve plate (17), and a slip ring (19) with a lockable sliding distance is transversely slidably sleeved in each screw rod (18), and a support plate (21) is installed at the bottom end of the slip ring (19) that can be inserted into the slurry hole of the box beam and abut against the top of the slurry hole or abut against the side of the box beam.

2. A box beam lifting device capable of lifting in multiple directions according to claim 1, characterized in that: The installation assembly comprises a top plate (5) detachably mounted on the bottom end of the cable (4), four vertical rods (6) arranged at four corners of the bottom end of the top plate (5), and a bottom plate (7) arranged between the bottom ends of the four vertical rods (6), and the cross hanging plate (8) is detachably mounted on the top end of the bottom plate (7).

3. The box beam lifting device capable of lifting in multiple directions according to claim 1, characterized in that: An air bag (9) is detachably mounted at the center of the top of the cross hanging plate (8); an exhaust pipe (10) detachably connected to a negative pressure pump is connected to the center of the top of the air bag (9); an exhaust pipe (11) for exhausting the air bag (9) is connected to the peripheral side wall of the exhaust pipe (10); four extended horizontal pipes (12) are connected to the peripheral side wall of the air bag (9); a connecting vertical pipe (13) is connected to each suction cup (14) at the bottom side of the peripheral side wall of the extended horizontal pipe (12); the connecting vertical pipe (13) penetrates the cross hanging plate (8) longitudinally, and the suction cup (14) is detachably mounted at the bottom end of the connecting vertical pipe (13).

4. The box beam lifting device capable of lifting in multiple directions according to claim 1, characterized in that: An extension plate (15) is detachably mounted on one end of each of the four side branches of the cross hanging plate (8) which is away from the center. The slide plate (16) is slidably arranged in the extension plate (15) in a transverse direction, and the sliding distance of the slide plate (16) is controllable.

5. The box beam lifting device capable of lifting in multiple directions according to claim 1, characterized in that: Nuts (22) are threadedly sleeved on the positions of the screw rod (18) on both sides of the slip ring (19); the two nuts (22) can lock the slip ring (19) at the lateral position of the screw rod (18); a connecting rod (20) is connected to the bottom side of the peripheral wall of the slip ring (19); and the top end of the support plate (21) is detachably connected to the bottom end of the connecting rod (20).

6. The box beam lifting device capable of lifting in multiple directions according to claim 4, characterized in that: The four corners of the hoisting installation plate (1) are each provided with a hoisting installation seat (2) that can be detachably installed with the top beam, a first fastening plate (23) is each provided between two adjacent side walls of the four side branches of the cross hoisting plate (8), and a second fastening plate (24) is each provided between adjacent side walls of the four extension plates (15).

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