Stable hoisting multi-hoisting-point small box girder hoisting frame

Abstract

The utility model relates to small box girder hanger equipment technical field, concretely is a kind of stable hoisting's multiple-hoisting-point small box girder hanger, including beam frame, the top of beam frame is fixedly installed with support block, the both sides of support block are fixedly connected with reinforcing block, the bottom of reinforcing block is fixedly connected with the top of beam frame, reinforcing block can provide effective auxiliary support for support block, the front of support block is fixedly connected with positioning rod, telescopic link drives connecting ring to move, since connecting ring is movably sleeved in the outer wall of connecting rod, and connecting rod is also fixedly connected with mounting rod, mounting rod is limited by sliding groove, connecting ring can only push mounting rod to move horizontally in sliding groove by connecting rod when moving, while telescopic link drives rotating ring to rotate in the outer wall of positioning rod, after mounting rod drives lower lifting hook to move to the just above of hoisting point, the work of telescopic link is stopped, the predicament that staff needs to install lifting hook repeatedly according to the hoisting point position of prefabricated mould is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of small box girder lifting equipment, specifically a multi-point small box girder lifting system for stable lifting. Background Technology

[0002] Precast small box girders are a common type of precast component in highway construction. During the precasting process, the hoisting of the outer and inner steel formwork of the small box girder, as well as the steel reinforcement cage, requires specialized scaffolding. In China, the commonly used technology is to use gantry cranes to hoist the inner and outer steel formwork and simple scaffolding to hoist the steel reinforcement cage. Moreover, the hoisting of the inner and outer steel formwork is done section by section.

[0003] Currently, most small box girder hangers on the market use a 4-point lifting method for the box girder. The position of the lifting points is adjusted synchronously with the weight of the precast mold. After the lifting points are determined, workers need to install the corresponding position of the small box girder hanger hooks according to the lifting points. This adjustment method is time-consuming and labor-intensive. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-point lifting frame for stable hoisting of small box girders, solving the problem in the background art where, after determining the lifting points, workers need to install the hooks of the small box girder lifting frame accordingly. To achieve the above objective, this utility model provides the following technical solution: a multi-point lifting frame for stable hoisting of small box girders, including a beam frame, a support block fixedly installed on the top of the beam frame, reinforcing blocks fixedly connected to both sides of the support block, the bottom of the reinforcing blocks fixedly connected to the top of the beam frame, the reinforcing blocks providing effective auxiliary support for the support blocks, and a positioning rod fixedly connected to the front of the support blocks.

[0005] The outer wall of the positioning rod is rotatably connected to the inner wall of the adjusting assembly, one end of the adjusting assembly is fixedly connected to one end of the suspension assembly, and the inner wall of the suspension assembly is slidably connected to the inner wall of the beam frame.

[0006] Preferably, the inner wall of the beam frame is provided with a sliding groove for the suspension assembly to slide, and the center of the beam frame is provided with a suspension port for insertion into the suspension assembly.

[0007] Preferably, the support block has an installation opening on its inner wall near the top, and the installation opening is connected to the lifting equipment via a steel cable.

[0008] Preferably, the adjusting assembly includes a rotating ring, a telescopic rod, a connecting ring, and a connecting rod. The inner wall of the rotating ring is rotatably connected to the outer wall of the positioning rod, and the outer wall of the rotating ring is fixedly connected to one end of the telescopic rod. The other end of the telescopic rod is fixedly connected to the outer wall of the connecting ring, and the inner wall of the connecting ring is rotatably connected to the outer wall of the connecting rod. One end of the connecting rod is fixedly connected to one end of the suspension assembly. The telescopic rod can adjust the distance between the rotating ring and the connecting ring.

[0009] Preferably, the number of suspension components is three, and the outer wall of one suspension component is movably inserted into the inner wall of the suspension port, while one end of the other two suspension components is fixedly connected to one end of the connecting rod.

[0010] Preferably, the suspension assembly includes a mounting rod, a mounting ring, an upper hook, a connecting hook, a connecting plate, and a lower hook. The outer wall of the mounting rod is slidably connected to the inner wall of the sliding groove, and one end of the mounting rod is fixedly connected to one end of the connecting rod. The outer wall of the mounting rod is rotatably connected to the inner wall of the mounting ring, and the bottom of the mounting ring is fixedly connected to the top of the upper hook. The inner wall of the upper hook is movably sleeved with the outer wall of the top of the connecting hook, and the outer wall of the bottom of the connecting hook is rotatably connected to the inner wall of the connecting plate. The inner wall of the bottom of the connecting plate is rotatably connected to the outer wall of the lower hook.

[0011] Preferably, the control assembly includes a control rod, a control wheel, a plug-in rod, a transmission wheel, a transmission rod, a rack, a support plate, a clamping rod, and a clamping block. One end of the control rod is fixedly connected to the front of the support block, and the outer wall of the control rod is rotatably connected to the inner wall of the control wheel. The plug-in rod is movably inserted into the inner wall of the control wheel, and one end of the plug-in rod movably abuts against the front of the support block. The outer wall of the control wheel is meshed with the outer wall of the transmission wheel, and the inner wall of the transmission wheel is rotatably connected to the outer wall of the transmission rod. The outer wall of the transmission wheel is meshed with the outer wall of the rack, and the back of the rack is fixedly connected to the front of the support plate. The outer wall of the support plate is slidably connected to the inner wall of the support groove, and the front of the rack is fixedly connected to one end of the clamping rod. The outer wall of the clamping rod is rotatably connected to the inner wall of the clamping block, and the outer wall of the clamping block movably abuts against the outer wall of the telescopic rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] In this invention, the pre-embedded lifting points are selected according to the weight of the precast mold. The control wheel is rotated according to the position of the lifting point. Under the meshing force, the control wheel drives the transmission wheel to rotate on the outer wall of the transmission rod. When the transmission wheel rotates, it drives the rack to move. The rack moves laterally under the sliding force between the support plate and the support groove. The rack drives the telescopic rod to move through the clamping block. The telescopic rod drives the connecting ring to move. Since the connecting ring is movably sleeved on the outer wall of the connecting rod, and the connecting rod is fixedly connected to the installation rod, the installation rod is restricted by the sliding groove. When the connecting ring moves, it can only push the installation rod to move laterally in the sliding groove through the connecting rod. At the same time, the telescopic rod drives the rotating ring to rotate on the outer wall of the positioning rod. When the installation rod drives the hook to move directly above the lifting point, the telescopic rod stops working. This solves the dilemma that workers need to repeatedly install the hook according to the lifting point position of the precast mold.

[0014] In this invention, the use of support blocks and reinforcing blocks in cooperation can reduce the rigid force exerted by the hanger on the lower lifting device. At the same time, the multi-point hanger, through the connecting plate and the lower hook, distributes the force on the precast mold suspended below, effectively improving the stability and safety of the small box girder during the hoisting process. Attached Figure Description

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

[0016] Figure 2 This is a partial structural schematic diagram of the present invention;

[0017] Figure 3 This is a schematic diagram of the adjustment component structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the suspension assembly structure of this utility model;

[0019] Figure 5 This is a schematic diagram of the control component structure of this utility model.

[0020] In the diagram: 1. Beam frame; 2. Support block; 3. Reinforcing block; 4. Positioning rod; 5. Adjustment assembly; 501. Rotating ring; 502. Telescopic rod; 503. Connecting ring; 504. Connecting rod; 6. Suspension assembly; 601. Mounting rod; 602. Mounting ring; 603. Upper hook; 604. Connecting hook; 605. Connecting plate; 606. Lower hook; 7. Control assembly; 701. Control rod; 702. Control wheel; 703. Plug-in rod; 704. Transmission wheel; 705. Transmission rod; 706. Rack; 707. Support plate; 708. Clamping rod; 709. Clamping block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1 to 5 This utility model provides a technical solution: a multi-point lifting frame for stable hoisting of small box girders, including a beam frame 1, a support block 2 fixedly installed on the top of the beam frame 1, a reinforcing block 3 fixedly connected to both sides of the support block 2, the bottom of the reinforcing block 3 fixedly connected to the top of the beam frame 1, the reinforcing block 3 can provide effective auxiliary support for the support block 2, and a positioning rod 4 fixedly connected to the front of the support block 2.

[0023] The outer wall of the positioning rod 4 is rotatably connected to the inner wall of the adjusting component 5, one end of the adjusting component 5 is fixedly connected to one end of the suspension component 6, and the inner wall of the suspension component 6 is slidably connected to the inner wall of the beam frame 1.

[0024] In this embodiment, as Figures 1 to 5 As shown, the inner wall of the beam frame 1 is provided with a sliding groove for the suspension assembly 6 to slide, and the center of the beam frame 1 is provided with a suspension port for insertion into the suspension assembly 6.

[0025] In this embodiment, as Figures 1 to 5 As shown, the support block 2 has an installation port on its inner wall near the top, and the installation port is connected to the lifting equipment via a steel cable.

[0026] In this embodiment, as Figures 1 to 5 As shown, the adjustment assembly 5 includes a rotating ring 501, a telescopic rod 502, a connecting ring 503, and a connecting rod 504. The inner wall of the rotating ring 501 is rotatably connected to the outer wall of the positioning rod 4, and the outer wall of the rotating ring 501 is fixedly connected to one end of the telescopic rod 502. The other end of the telescopic rod 502 is fixedly connected to the outer wall of the connecting ring 503, and the inner wall of the connecting ring 503 is rotatably connected to the outer wall of the connecting rod 504. One end of the connecting rod 504 is fixedly connected to one end of the suspension assembly 6. The telescopic rod 502 can adjust the distance between the rotating ring 501 and the connecting ring 503.

[0027] In this embodiment, as Figures 1 to 5 As shown, there are three suspension components 6, and the outer wall of one of the suspension components 6 is movably connected to the inner wall of the suspension port, while one end of the other two suspension components 6 is fixedly connected to one end of the connecting rod 504.

[0028] In this embodiment, as Figures 1 to 5As shown, the suspension assembly 6 includes a mounting rod 601, a mounting ring 602, an upper hook 603, a connecting hook 604, a connecting plate 605, and a lower hook 606. The outer wall of the mounting rod 601 is slidably connected to the inner wall of the sliding groove, and one end of the mounting rod 601 is fixedly connected to one end of the connecting rod 604. The outer wall of the mounting rod 601 is rotatably connected to the inner wall of the mounting ring 602, and the bottom of the mounting ring 602 is fixedly connected to the top of the upper hook 603. The inner wall of the upper hook 603 is movably sleeved with the outer wall of the top of the connecting hook 604, and the outer wall of the bottom of the connecting hook 604 is rotatably connected to the inner wall of the connecting plate 605. The inner wall of the bottom of the connecting plate 605 is rotatably connected to the outer wall of the lower hook 606.

[0029] In this embodiment, as Figures 1 to 5 As shown, the control assembly 7 includes a control lever 701, a control wheel 702, a connecting rod 703, a transmission wheel 704, a transmission rod 705, a rack 706, a support plate 707, a clamping rod 708, and a clamping block 709. One end of the control lever 701 is fixedly connected to the front of the support block 2, and the outer wall of the control lever 701 is rotatably connected to the inner wall of the control wheel 702. The connecting rod 703 is movably inserted into the inner wall of the control wheel 702, and one end of the connecting rod 703 movably abuts against the front of the support block 2. The outer wall of the control wheel 702 is connected to the transmission wheel 709. The outer wall of the transmission wheel 704 is meshed and connected to the inner wall of the transmission rod 705, which is rotatably connected to the inner wall of the transmission wheel 704. The outer wall of the transmission wheel 704 is meshed and connected to the outer wall of the rack 706, and the back of the rack 706 is fixedly connected to the front of the support plate 707. The outer wall of the support plate 707 is slidably connected to the inner wall of the support groove, and the front of the rack 706 is fixedly connected to one end of the clamping rod 708. The outer wall of the clamping rod 708 is rotatably connected to the inner wall of the clamping block 709, and the outer wall of the clamping block 709 is movably abutting against the outer wall of the telescopic rod 502.

[0030] The usage and advantages of this utility model: The working process of this stable multi-point lifting small box girder hanger is as follows:

[0031] like Figures 1 to 5As shown, the pre-embedded lifting points are selected according to the weight of the precast mold. The control wheel 702 is rotated according to the position of the lifting points. Under the meshing force, the control wheel 702 drives the transmission wheel 704 to rotate on the outer wall of the transmission rod 705. When the transmission wheel 704 rotates, it drives the rack 706 to move. The rack 706 moves laterally under the sliding force between the support plate 707 and the support groove. The rack 706 drives the telescopic rod 502 to move through the clamping block 709. The telescopic rod 502 drives the connecting ring 503 to move. Since the connecting ring 503 is movably sleeved on the connecting rod 505... The outer wall of 04, and the connecting rod 504 is fixedly connected to the mounting rod 601. The mounting rod 601 is restricted by the sliding groove. When the connecting ring 503 moves, it can only push the mounting rod 601 to move laterally in the sliding groove through the connecting rod 504. At the same time, the telescopic rod 502 drives the rotating ring 501 to rotate on the outer wall of the positioning rod 4. When the mounting rod 601 drives the lower hook 606 to move directly above the lifting point, the telescopic rod 502 stops working, which solves the dilemma that the workers need to repeatedly install the hook according to the lifting point position of the precast mold.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-point lifting frame for stable hoisting of small box girders, comprising a beam frame (1), characterized in that: A support block (2) is fixedly installed on the top of the beam frame (1). A reinforcing block (3) is fixedly connected to both sides of the support block (2). The bottom of the reinforcing block (3) is fixedly connected to the top of the beam frame (1). The reinforcing block (3) can provide effective auxiliary support for the support block (2). A positioning rod (4) is fixedly connected to the front of the support block (2). The outer wall of the positioning rod (4) is rotatably connected to the inner wall of the adjustment component (5), one end of the adjustment component (5) is fixedly connected to one end of the suspension component (6), the inner wall of the suspension component (6) is slidably connected to the inner wall of the beam frame (1), and the outer wall of the adjustment component (5) is movably abutting against the outer wall of the control component (7).

2. The multi-point lifting frame for stable hoisting of small box girders according to claim 1, characterized in that: The inner wall of the beam frame (1) is provided with a sliding groove for the suspension assembly (6) to slide, and a suspension port for insertion into the suspension assembly (6) is provided at the center of the beam frame (1).

3. The multi-point lifting frame for stable hoisting of small box girders according to claim 1, characterized in that: The support block (2) has an installation port on its inner wall near the top, and the installation port is connected to the lifting equipment via a steel cable. The front of the support block (2) has a support groove for the control component (7) to slide.

4. The multi-point lifting frame for stable hoisting of small box girders according to claim 1, characterized in that: The adjustment component (5) includes a rotating ring (501), a telescopic rod (502), a connecting ring (503), and a connecting rod (504). The inner wall of the rotating ring (501) is rotatably connected to the outer wall of the positioning rod (4), and the outer wall of the rotating ring (501) is fixedly connected to one end of the telescopic rod (502). The other end of the telescopic rod (502) is fixedly connected to the outer wall of the connecting ring (503), and the inner wall of the connecting ring (503) is rotatably connected to the outer wall of the connecting rod (504). One end of the connecting rod (504) is fixedly connected to one end of the suspension component (6), and the outer wall of the telescopic rod (502) is movably abutting against the outer wall of the control component (7). The telescopic rod (502) can adjust the distance between the rotating ring (501) and the connecting ring (503).

5. The multi-point lifting frame for stable hoisting of small box girders according to claim 4, characterized in that: The number of suspension components (6) is three, and the outer wall of one of the suspension components (6) is movably inserted into the inner wall of the suspension port, while one end of the other two suspension components (6) is fixedly connected to one end of the connecting rod (504).

6. The multi-point lifting frame for stable hoisting of small box girders according to claim 5, characterized in that: The suspension assembly (6) includes a mounting rod (601), a mounting ring (602), an upper hook (603), a connecting hook (604), a connecting plate (605), and a lower hook (606). The outer wall of the mounting rod (601) is slidably connected to the inner wall of the sliding groove, and one end of the mounting rod (601) is fixedly connected to one end of the connecting rod (504). The outer wall of the mounting rod (601) is rotatably connected to the inner wall of the mounting ring (602), and the bottom of the mounting ring (602) is fixedly connected to the top of the upper hook (603). The inner wall of the upper hook (603) is movably sleeved with the outer wall of the top of the connecting hook (604), and the outer wall of the bottom of the connecting hook (604) is rotatably connected to the inner wall of the connecting plate (605). The inner wall of the bottom of the connecting plate (605) is rotatably connected to the outer wall of the lower hook (606).

7. The multi-point lifting frame for stable hoisting of small box girders according to claim 4, characterized in that: The control assembly (7) includes a control rod (701), a control wheel (702), a plug rod (703), a transmission wheel (704), a transmission rod (705), a rack (706), a support plate (707), a clamping rod (708), and a clamping block (709). One end of the control rod (701) is fixedly connected to the front of the support block (2), and the outer wall of the control rod (701) is rotatably connected to the inner wall of the control wheel (702). The inner wall of the control wheel (702) is movably inserted with the plug rod (703), and one end of the plug rod (703) movably abuts against the front of the support block (2). The outer wall of the control wheel (702) is fixedly connected to the front of the support block (2). The inner wall of the transmission wheel (704) is meshed with the outer wall of the transmission wheel (704), and the outer wall of the transmission rod (705) is rotatably connected to the inner wall of the transmission wheel (704). The outer wall of the transmission wheel (704) is meshed with the outer wall of the rack (706), and the back of the rack (706) is fixedly connected to the front of the support plate (707). The outer wall of the support plate (707) is slidably connected to the inner wall of the support groove, and the front of the rack (706) is fixedly connected to one end of the clamping rod (708). The outer wall of the clamping rod (708) is rotatably connected to the inner wall of the clamping block (709), and the outer wall of the clamping block (709) is movably abutting against the outer wall of the telescopic rod (502).

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