Rear box girder hoisting structure

Abstract

The utility model discloses a rear box girder hoisting structure which comprises a girder seat and a lifting hook connecting rod fixedly arranged at the top end of the girder seat, connecting columns are rotationally arranged on the left side and the right side of the beam base through pin shafts; one end of the connecting column is fixedly connected with one end of the connecting column; the hook ring is arranged at the other end of the first steel rope; and the connecting mechanism is arranged between the first steel rope and the hook ring. According to the rear box girder hoisting structure, the first steel rope and the second steel rope can be stably connected through the connecting mechanism, the hook ring is prevented from being separated from the lifting hook, disassembly and connection are convenient, breakage is not prone to occurring, the second steel rope can be used for protecting the outer side of the bottom end of the box girder through a soft protection pad after the box girder is hoisted through the protection limiting assembly, and the safety of the box girder is improved. And the contact friction force with the box girder can be improved through the base plate, so that deviation of the second steel rope caused by inclined hoisting of the box girder is avoided, potential safety hazards are eliminated, and the stability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of slings, in particular to a rear box beam hoisting structure. Background Art

[0002] Prefabricated box girders are a construction method often used in modern buildings, especially in some large bridge buildings. This construction method usually involves prefabricating the box girders according to the design requirements, and then using lifting equipment to lift the prefabricated box girders to the predetermined position, such as between two adjacent bridge piers. At present, prefabricated box girders are generally lifted, transported and installed by bundling them at both ends with steel wire ropes. This lifting point fixing method requires the use of two cranes to lift both ends separately, but since the lifting heights of the two cranes cannot be controlled synchronously, the box girder will be tilted, which can easily cause the steel wire rope to move, posing a safety hazard. The steel wire rope usually adopts a split structure to facilitate passing through the bottom of the box girder, but the steel wire rope has poor fixing strength during the connection process, and the connection is prone to breakage, causing damage to the project. Utility Model Content

[0003] The purpose of the utility model is to provide a rear box beam hoisting structure to solve the problems in the prior art.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a rear box beam hoisting structure, comprising:

[0005] beam seat;

[0006] The hook connecting rod is fixedly arranged on the top of the beam seat;

[0007] Connecting columns: connecting columns are provided on both sides of the beam seat through the rotation of pins;

[0008] a first steel rope, one end of which is fixedly connected to one end of the connecting column;

[0009] a hook, arranged at the other end of the first steel rope;

[0010] A connecting mechanism is provided between the first steel rope and the hook;

[0011] The second steel rope is fixedly mounted on the outer wall of the hook ring;

[0012] The protective limiting component is arranged on the outer wall of the second steel rope.

[0013] Preferably, the connecting mechanism includes: a hook, which is fixedly arranged at one end of the first steel rope, and the hook is plugged into the hook ring, and a through hole is opened at the front end of the hook; a fixed block is fixedly arranged on one side of the hook; a connecting baffle is rotatably arranged on the outside of the fixed block; a connecting rod is fixedly arranged on the inner side of the two connecting baffles; a bolt is plugged into one side of the connecting baffle, and the bolt extends out of the inner cavity of the through hole; a nut is screwed into the outer wall of the bolt, and the nut is tightly attached to one side of the connecting baffle on the other side.

[0014] Preferably, bolts and nuts connect the connecting baffle and the hook together.

[0015] Preferably, the connecting mechanism includes: a rope loop, which is socketed with the outer wall of the second steel rope; a pad fixedly arranged on the top of the rope loop; soft pads are fixedly arranged on the left and right sides of the pad; limiting pads are fixedly arranged on the front and rear sides of the bottom end of the soft pad, and the second steel rope is located between the limiting pads on both sides.

[0016] Preferably, friction stripes are provided on the top of the pad.

[0017] Preferably, the rope loop is fixedly connected to the middle of the outer wall of the second steel rope.

[0018] Compared with the prior art, the beneficial effects of the present invention are: the rear box beam lifting structure can firmly connect the first steel rope and the second steel rope by providing a connecting mechanism, avoid separation of the hook and the hook, and is easy to disassemble and connect, and is not easy to break. By providing a protective limit assembly, the second steel rope can use a soft pad to protect the outer side of the bottom end of the box beam after lifting the box beam, and the pad can increase the contact friction with the box beam to avoid tilting the box beam to cause the second steel rope to deviate, eliminating safety hazards and having strong stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 For this utility model Figure 1 A magnified view of point A in the figure;

[0021] Figure 3 It is a left side sectional view of the hook of the utility model;

[0022] Figure 4 This is a schematic diagram of the explosion structure of the protective limiting component of the utility model.

[0023] In the figure: 1. Beam seat; 2. Hook connecting rod; 3. Connecting column; 4. First steel rope; 5. Hook; 6. Connecting mechanism; 61. Hook; 62. Through hole; 63. Fixing block; 64. Baffle; 65. Connecting rod; 66. Bolt; 67. Nut; 7. Second steel rope; 8. Protective limit assembly; 81. Rope loop; 82. Pad; 83. Soft pad; 84. Limit pad; 85. Friction stripes. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0025] See also Figure 1-4 The utility model provides a technical solution: a rear box beam hoisting structure, comprising: a beam seat 1, a hook connecting rod 2, a connecting column 3, a first steel rope 4, a hook ring 5, a connecting mechanism 6, a second steel rope 7 and a protective limit assembly 8;

[0026] The hook connecting rod 2 is fixedly set at the top of the beam seat 1, and connecting columns 3 are set on the left and right sides of the beam seat 1 through a pin shaft. One end of the connecting column 3 is fixedly connected to one end of the connecting column 3. The hook ring 5 is set at the other end of the first steel rope 4, and the connecting mechanism 6 is set between the first steel rope 4 and the hook ring 5. The second steel rope 7 is fixedly set on the outer wall of the hook ring 5, and the protective limit assembly 8 is set on the outer wall of the second steel rope 7.

[0027] As a preferred solution, further, the connecting mechanism 6 includes: a hook 61, a through hole 62, a fixing block 63, a baffle 64, a connecting rod 65, a bolt 66 and a nut 67;

[0028] In order to ensure a stable connection between the first steel rope 4 and the second steel rope 7, a hook 61 is fixedly provided at one end of the first steel rope 4, and the hook 61 is plugged into the hook ring 5. A through hole 62 is provided at the front end of the hook 61, a fixing block 63 is fixedly provided at one side of the hook 61, a connecting baffle 64 is rotatably provided on the outside of the fixing block 63, and a connecting rod 65 is fixedly provided on the inner side of the two connecting baffles 64. The connecting rod 65 can connect and fix the connecting baffles 64 together.

[0029] In order to fix the connecting baffle 64 and the hook 61 together, the bolt 66 is inserted into one side of the connecting baffle 64, and the bolt 66 extends out of the inner cavity of the through hole 62, and the nut 67 is screwed into the outer wall of the bolt 66, and the nut 67 is tightly attached to one side of the connecting baffle 64 on the other side.

[0030] As a preferred solution, further, the bolt 66 and the nut 67 connect the connecting baffle 64 and the hook 61 together, so that the hook 61 and the hook ring 5 are firmly connected.

[0031] As a preferred solution, further, the protective limiting assembly 8 includes: a rope loop 81, a pad 82, a soft pad 83, a limiting pad 84 and a friction stripe 85;

[0032] In order to prevent the second steel rope 7 from moving, the rope loop 81 is connected to the outer wall of the second steel rope 7, and the pad 82 is fixedly set on the top of the rope loop 81. Soft pads 83 are fixedly set on the left and right sides of the pad 82. Limiting pads 84 are fixedly set on the front and back sides of the bottom end of the soft pad 83, and the second steel rope 7 is located between the limiting pads 84 on both sides. The second steel rope 7 can be limited under the restriction of the limiting pads 84.

[0033] As a preferred solution, further, a friction stripe 85 is provided on the top of the pad 82 to improve the contact strength between the pad 82 and the box beam and prevent the pad 82 from moving.

[0034] As a preferred solution, further, the rope loop 81 is fixedly connected to the middle of the outer wall of the second steel rope 7, so that the soft pad 83 can be accurately placed between the second steel rope 7 and the box girder.

[0035] The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process. The specific operations are as follows.

[0036] Step 1: When using, first separate the first steel rope 4 and the second steel rope 7, extend the second steel rope 7 and the pad 82 to the bottom end of the box beam, so that the pad 82 extends under the box beam, and then pull up both sides of the second steel rope 7 so that the soft pad 83 is stuck on the lower edge of the box beam;

[0037] Step 2: Turn the nut 67 to separate the nut 67 from the bolt 66, thereby releasing the restriction on the connecting baffle 64, and rotating the connecting baffle 64 upward to open one side of the hook 61, and hang the hook 5 on the second steel rope 7 on the hook 61. Then, rotate the connecting baffle 64 and fix the connecting baffle 64 and the hook 61 together with the nut 67 and the bolt 66 to prevent the hook 5 from separating from the hook 61, so that the first steel rope 4 and the second steel rope 7 are firmly connected;

[0038] Step three: Pull up the hook connecting rod 2 to lift the box girder with the first steel rope 4 and the second steel rope 7. The soft pad 83 can directly protect the two sides below the box girder. When the box girder tilts, the friction stripes 85 can prevent the second steel rope 7 from moving at the bottom of the box girder, and the limiting pad 84 can limit the second steel rope 7, thereby preventing the second steel rope 7 from moving after the box girder is lifted, so that the box girder can be lifted stably, which is safer and conducive to wide promotion.

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rear box beam hoisting structure, characterized in that: include: Beam seat (1); A hook connecting rod (2) is fixedly arranged on the top end of the beam seat (1); Connecting columns (3), with connecting columns (3) being provided on both the left and right sides of the beam seat (1) through a pin-rotatable arrangement; A first steel rope (4), one end of the connecting column (3) being fixedly connected to one end of the connecting column (3); A hook (5) is provided at the other end of the first steel rope (4); A connecting mechanism (6) is provided between the first steel rope (4) and the hook (5); A second steel rope (7) fixedly arranged on the outer wall of the hook ring (5); A protective limiting component (8) is arranged on the outer wall of the second steel rope (7).

2. The rear box beam hoisting structure according to claim 1, characterized in that: The connecting mechanism (6) comprises: A hook (61) is fixedly arranged at one end of the first steel rope (4), and the hook (61) is plugged into the hook ring (5), and a through hole (62) is opened at one end of the front side of the hook (61); A fixing block (63) fixedly arranged on one side of the hook (61); A connecting baffle (64) is rotatably arranged on the outside of the fixed block (63); A connecting rod (65) is fixedly arranged on the inner sides of the two connecting baffles (64); A bolt (66) is plugged into one side of the connecting baffle (64), and the bolt (66) extends out of the inner cavity of the through hole (62); The nut (67) is threadedly connected to the outer wall of the bolt (66), and the nut (67) is tightly attached to one side of the connecting baffle (64) on the other side.

3. The rear box beam hoisting structure according to claim 2, characterized in that: The bolt (66) and the nut (67) connect the connecting baffle (64) and the hook (61) together.

4. The rear box beam hoisting structure according to claim 1, characterized in that: The protective limiting component (8) comprises: A rope loop (81) is sleeved on the outer wall of the second steel rope (7); A pad (82) is fixedly arranged on the top of the rope loop (81); Soft pads (83), with soft pads (83) fixedly provided on both the left and right sides of the backing plate (82); A limiting pad (84) is fixedly provided on both the front and rear sides of the bottom end of the soft protective pad (83), and the second steel rope (7) is located between the limiting pads (84) on both sides.

5. The rear box beam hoisting structure according to claim 4, characterized in that: The top end of the pad (82) is provided with friction stripes (85).

6. The rear box beam hoisting structure according to claim 4, characterized in that: The rope loop (81) is fixedly connected to the middle of the outer wall of the second steel rope (7).

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