A steel cage hoisting fixture for bridge engineering construction

Abstract

The utility model proposes a steel cage hoisting fixture for bridge engineering construction, which belongs to the technical field of bridge construction. The steel cage hoisting fixture for bridge engineering construction includes a crossbeam and longitudinal beams that can be displaced and installed on both sides of the lower surface of the crossbeam. The longitudinal beam is installed with a plurality of suspension seats distributed sequentially from top to bottom. The suspension seat can be raised and lowered on the longitudinal beam. A hook is arranged on the outer side of the suspension seat. The hook can be raised and lowered on the suspension seat, and a positioning structure for fixing the hook in the height direction is arranged on the suspension seat. The utility model has the advantages of strong stability and high safety of steel cage hoisting.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a steel cage hoisting fixture for bridge engineering construction. Background Art

[0002] The lifting and lowering of the steel cage is one of the important processes in the pier casting construction during bridge construction. In the current construction, the steel cage is generally lifted by cranes and cables, and there are also suspension-type fixtures used for lifting the steel cage. However, in the common steel cage lifting fixtures, due to the error of the spacing between the steel cage stirrups, it is generally impossible to directly and effectively use multiple longitudinal hooks for lifting operations. Therefore, the current lifting fixtures generally only have one circle of lifting fixtures in the longitudinal direction of the steel cage, which results in the main force point being the same stirrup on the steel cage during the lifting process, which poses certain safety hazards. Utility Model Content

[0003] In order to solve the above technical problems, the utility model proposes a steel cage hoisting fixture for bridge engineering construction.

[0004] The technical solution of the utility model is achieved in this way:

[0005] A steel cage hoisting jig for bridge engineering construction comprises a crossbeam and longitudinal beams displaceably installed on both sides of the lower surface of the crossbeam, a plurality of suspension seats distributed sequentially from top to bottom are installed on the longitudinal beam, the suspension seats are arranged on the longitudinal beam in a manner that they can be raised or lowered, a hook is arranged on the outer side of the suspension seat, the hook is arranged on the suspension seat in a manner that it can be raised or lowered, and a positioning structure for fixing the hook in a height direction is arranged on the suspension seat.

[0006] Furthermore, a bidirectional screw rod is installed in the cross beam, and the top ends of the two longitudinal beams are respectively matched with the two end threads of the bidirectional screw rod.

[0007] Furthermore, a longitudinal elastic telescopic rod for supporting the suspension seat at the highest position is provided on the longitudinal beam.

[0008] Furthermore, an outer top block is fixedly installed on the inner side surface of the hook, and an inner top block capable of being displaced inwards and outwards is arranged on the outside of the longitudinal beam. The inner top block pushes up the outer top block so that the hook is sleeved from bottom to top on the outside of the stirrups of the steel cage; the inner top block is displaced upward on the inner side surface of the outer top block so that the positioning structure fixes the hook.

[0009] Furthermore, the bottom end of the inner side surface of the outer top block and the top end of the outer side surface of the inner top block are both arranged as inclined surfaces, and the inner end height of the inclined surface is greater than the outer end height, and the inner side surface of the outer top block and the outer side surface of the inner top block are both vertical surfaces.

[0010] Further, the inner top block has a first state of being located at the outermost position, and a second state of being located at the innermost position, wherein:

[0011] When the inner top block is in the first state, the outer top block and the inclined surface on the inner top block are intersecting in the height direction; when the inner top block is in the second state, the outer side surface of the outer top block and the inner side surface of the inner top block are located on the same vertical plane.

[0012] Furthermore, when the inner top block is in the second state, the inner side surface of the inner top block contacts the outer side surface of the longitudinal beam.

[0013] Furthermore, the positioning structure includes an outer rack, an inner rack and a first transverse elastic telescopic rod, the outer rack is fixedly mounted on the inner side of the suspension seat, the first transverse elastic telescopic rod is fixed on the top of the hook, the inner rack is fixedly mounted on the protruding end of the first transverse elastic telescopic rod, and the inner rack is located on the inner side of the outer rack.

[0014] Furthermore, the outer rack and the inner rack are distributed on both sides of the outer top block, and the top ends of the two inner racks are connected to the first transverse elastic telescopic rod through the auxiliary top block. The auxiliary top block is configured to match the shape of the outer top block, and when the suspension seat is at the lowest position, the vertical surface of the outer side of the inner top block is in contact with the vertical surfaces of the inner sides of the outer top block and the auxiliary top block at the same time.

[0015] The utility model has the following beneficial effects:

[0016] By setting up multiple hooks to simultaneously hang multiple stirrups of the steel cage, the stability and safety of the steel cage hoisting can be improved. At the same time, by utilizing the cooperation of the inner top block and the outer top block, all hooks can effectively contact the steel cage stirrups, thereby ensuring the stability of the suspension. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the utility model when hoisting a steel cage;

[0018] Figure 2 This utility model Figure 1 Enlarged view of point A in the middle;

[0019] Figure 3 This utility model Figure 2 Enlarged view of point B in the middle;

[0020] Figure 4 It is an overall schematic diagram of the utility model of the steel cage hoisting fixture for bridge engineering construction;

[0021] Figure 5 This utility model Figure 4 Enlarged view of point C in the middle;

[0022] Figure 6 It is a schematic diagram of the utility model after the longitudinal beam is cut open;

[0023] Figure 7 This utility model Figure 6 Enlarged view of point D in the middle;

[0024] Figure 8 It is a schematic diagram of the hook of the utility model.

[0025] In the figure: 1. cross beam; 2. longitudinal beam; 3. suspension seat; 4. hook; 4.1. sliding part; 5. positioning structure; 5.1. outer rack; 5.2. inner rack; 5.3. first transverse elastic telescopic rod; 6. bidirectional screw rod; 7. longitudinal elastic telescopic rod; 8. outer top block; 9. inner top block; 10. auxiliary top block; 11. support rod; 12. first through slot; 13. second through slot; 14. second transverse elastic telescopic rod. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] like Figures 1 to 8 As shown, the present embodiment provides a steel cage lifting fixture for bridge engineering construction, comprising a crossbeam 1 and longitudinal beams 2 which are displaceably installed on both sides of the lower surface of the crossbeam 1, a plurality of suspension seats 3 which are distributed sequentially from top to bottom are installed on the longitudinal beam 2, the suspension seat 3 is arranged on the longitudinal beam 2 so as to be liftable, a hook 4 is arranged on the outer side surface of the suspension seat 3, the hook 4 is arranged on the suspension seat 3 so as to be liftable, and a positioning structure 5 for fixing the hook 4 in the height direction is arranged on the suspension seat 3.

[0028] A bidirectional screw rod 6 is installed inside the transverse part, and the top ends of the two longitudinal beams 2 are respectively threadedly sleeved on the two ends of the bidirectional screw rod 6. By rotating the bidirectional screw rod 6, the distance between the two longitudinal beams 2 is adjusted to better adapt to the inner diameter of the steel cage.

[0029] The distance between two adjacent suspension seats 3 in the height direction corresponds to the spacing between the upper and lower stirrups of the steel cage to ensure that all the hooks 4 can be hung on the stirrups of the steel cage.

[0030] The longitudinal beam 2 is provided with a longitudinal elastic telescopic rod 7 for supporting the suspension seat 3 at the highest position. In this embodiment, support rods 11 are vertically fixed to both upper and lower ends of the suspension seat 3, and a first through slot 12 for the inner end of the support rod 11 to be lifted and lowered is provided on the longitudinal beam 2. The longitudinal elastic telescopic rod 7 is installed on the inner bottom wall of the first through slot 12, and the inner end of the support rod 11 is inserted into the first through slot 12 and fixedly connected to the protruding end of the longitudinal elastic telescopic rod 7.

[0031] A second through slot 13 is defined in the suspension seat 3 , and the hook 4 includes a sliding portion 4 . 1 slidably disposed in the second through slot 13 in the height direction.

[0032] An outer top block 8 is fixedly mounted on the inner side of the hook 4, and an inner top block 9 capable of inward and outward displacement is arranged on the outside of the longitudinal beam 2, and the inner top block 9 pushes up the outer top block 8 so that the hook 4 is sleeved on the outside of the stirrups of the steel cage from bottom to top. In this embodiment, in the initial state, the hook 4 is located between two adjacent stirrups of the steel cage, and the inner top block 9 pushes up the outer top block 8, and the outer top block 8 causes the hook 4 to move upward, thereby enabling the hook 4 to be sleeved on the stirrups of the steel cage from bottom to top.

[0033] The inner top block 9 moves upward on the inner side of the outer top block 8 so that the positioning structure 5 fixes the hook 4. In this embodiment, when the outer top block 8 is pushed up by the inner top block 9 so that the hook 4 is put on the stirrup of the steel cage, the outer side of the inner top block 9 contacts the inner side of the outer top block 8, and the inner top block 9 moves upward on the inner side of the outer top block 8. At this time, the inner top block 9 drives the positioning structure 5 to fix the hook 4 to ensure that the hook 4 has a stable suspension effect on the steel cage.

[0034] The bottom end of the inner side surface of the outer top block 8 and the top end of the outer side surface of the inner top block 9 are both arranged as inclined surfaces, and the inner side end height of the inclined surface is greater than the outer side end height, and the inner side surface of the outer top block 8 and the outer side surface of the inner top block 9 are both vertical surfaces. The inner top block 9 has a first state located at the outermost side, and a second state located at the innermost side, wherein: when the inner top block 9 is in the first state, the inclined surfaces on the outer top block 8 and the inner top block 9 are in an intersecting state in the height direction; when the inner top block 9 is in the second state, the outer side surface of the outer top block 8 and the inner side surface of the inner top block 9 are located on the same vertical plane.

[0035] In this embodiment, the inclined surface of the inner top block 9 is supported on the bottom of the inclined surface of the outer top block 8, so that when the inner top block 9 rises, it pushes the outer top block 8 to move upward, and then the outer top block 8 drives the hook 4 to move upward and put on the stirrups of the steel cage.

[0036] After the hook 4 is put on the stirrups of the steel cage, when the inner top block 9 continues to move upward, the second transverse elastic telescopic rod 14 is compressed, and the inner top block 9 moves inward at the bottom of the outer top block 8 through the inclined surface. When the inner top block 9 is separated from the inclined surface of the outer top block 8, the inner top block 9 moves upward on the inner side surface of the outer top block 8.

[0037] When the inner top block 9 is in the second state, the inner side surface of the inner top block 9 contacts the outer side surface of the longitudinal beam 2. In this way, when the outer side surface of the inner top block 9 contacts the inner side surface of the outer top block 8, the inner end of the inner top block 9 is effectively limited by the longitudinal beam 2, thereby making the inner top block 9 more stable in the second state and unable to move inward further.

[0038] The inner side surface of the inner top block 9 is connected to a second transverse elastic telescopic rod 14 , the fixed end of the second transverse elastic telescopic rod 14 is installed in the longitudinal beam 2 , and the inner top block 9 is fixedly installed on the protruding end of the second transverse elastic telescopic rod 14 .

[0039] In this embodiment, the positioning structure 5 includes an outer rack 5.1, an inner rack 5.2 and a first transverse elastic telescopic rod 5.3. The outer rack 5.1 is fixedly mounted on the inner side of the suspension seat 3, the first transverse elastic telescopic rod 5.3 is fixed to the top of the hook 4, the inner rack 5.2 is fixedly mounted on the protruding end of the first transverse elastic telescopic rod 5.3, and the inner rack 5.2 is located on the inner side of the outer rack 5.1.

[0040] When the inner top block 9 moves upward on the inner side surface of the outer top block 8, the inner top block 9 squeezes the inner rack 5.2 outward, so that the first transverse elastic telescopic rod 5.3 is compressed, and the inner rack 5.2 is engaged with the outer rack 5.1, thereby fixing the hook 4 on the suspension seat 3 in the height direction, and the suspension seat 3 is stably supported by the longitudinal beam 2 due to the gravity of the steel cage, so that the hook 4 can stably suspend the steel cage.

[0041] Specifically, the outer rack 5.1 and the inner rack 5.2 are distributed on both sides of the outer top block 8, and the top ends of the two inner racks 5.2 are connected to the first transverse elastic telescopic rod 5.3 through the auxiliary top block 10. The auxiliary top block 10 is configured to match the shape of the outer top block 8, and when the suspension seat 3 is in the lowest position, the vertical surface of the outer side of the inner top block 9 is in contact with the vertical surfaces of the outer top block 8 and the inner sides of the auxiliary top block at the same time.

[0042] During the installation of the steel cage:

[0043] First, the bidirectional screw rod 6 is used to make the hook 4 be located between two adjacent stirrups of the steel cage, and then the steel cage is hoisted by a crane.

[0044] In the process of the crossbeam 1 driving the longitudinal beam 2 to move, the longitudinal beam 2 drives the inner top block 9 to move, and the inner top block 9 pushes up the outer top block 8, so that the hook 4 can be put on the stirrups of the steel cage, and ensure that the hook 4 can be stably supported at the bottom of the stirrups. After that, the inner top block 9 is squeezed inward by the outer top block 8, the inner top block 8 compresses the second transverse elastic telescopic rod 14, and the inner top block 9 is displaced inward. When the vertical surface of the inner top block 9 is flush with the vertical surface of the outer top block 8, the inner top block 9 is displaced on the inner side surface of the outer top block 8. In the subsequent displacement process of the inner top block 9, by squeezing the secondary top block 10 outward, the secondary top block 10 squeezes the second transverse elastic telescopic rod 14 outward, so that the inner rack 5.2 is displaced outward and meshes with the outer rack 5.1, thereby fixing the hook 4.

[0045] By making the above arrangement, not only can the steel cage be suspended and supported at multiple locations simultaneously in the length direction of the steel cage, but it can also ensure that all hooks 4 can stably suspend and support the steel cage, thereby achieving a stable lifting effect on the steel cage and having better safety.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel cage hoisting fixture for bridge engineering construction, comprising a crossbeam (1) and longitudinal beams (2) displaceably mounted on both sides of the lower surface of the crossbeam (1), characterized in that: A plurality of suspension seats (3) are installed on the longitudinal beam (2) and are distributed in sequence from top to bottom. The suspension seats (3) are arranged on the longitudinal beam (2) in a manner that they can be lifted or lowered. A hook (4) is arranged on the outer side surface of the suspension seat (3). The hook (4) is arranged on the suspension seat (3) in a manner that they can be lifted or lowered. A positioning structure (5) for fixing the hook (4) in a height direction is arranged on the suspension seat (3).

2. A steel cage hoisting fixture for bridge engineering construction as claimed in claim 1, characterized in that: A bidirectional screw rod (6) is installed in the cross beam (1), and the top ends of the two longitudinal beams (2) are respectively threadedly matched with the two ends of the bidirectional screw rod (6).

3. A steel cage hoisting fixture for bridge engineering construction as claimed in claim 1, characterized in that: The longitudinal beam (2) is provided with a longitudinal elastic telescopic rod (7) for supporting the suspension seat (3) at the highest position.

4. A steel cage hoisting fixture for bridge engineering construction as claimed in claim 1, characterized in that: An outer top block (8) is fixedly mounted on the inner side surface of the hook (4); an inner top block (9) capable of inward and outward displacement is arranged on the outside of the longitudinal beam (2); the inner top block (9) pushes up on the outer top block (8) so that the hook (4) is sleeved from bottom to top on the outside of the stirrups of the steel cage; the inner top block (9) moves upward on the inner side surface of the outer top block (8) so that the positioning structure (5) fixes the hook (4).

5. A steel cage hoisting fixture for bridge engineering construction as claimed in claim 4, characterized in that: The bottom end of the inner side surface of the outer top block (8) and the top end of the outer side surface of the inner top block (9) are both arranged as inclined surfaces, and the height of the inner side end of the inclined surface is greater than the height of the outer side end. The inner side surface of the outer top block (8) and the outer side surface of the inner top block (9) are both vertical surfaces.

6. A steel cage hoisting fixture for bridge engineering construction as claimed in claim 5, characterized in that: The inner top block (9) has a first state in which it is located at the outermost position, and a second state in which it is located at the innermost position, wherein: When the inner top block (9) is in the first state, the outer top block (8) and the inclined surface on the inner top block (9) are in an intersecting state in the height direction; when the inner top block (9) is in the second state, the outer side surface of the outer top block (8) and the inner side surface of the inner top block (9) are located on the same vertical plane.

7. A steel cage hoisting fixture for bridge engineering construction as claimed in claim 6, characterized in that: When the inner top block (9) is in the second state, the inner side surface of the inner top block (9) contacts the outer side surface of the longitudinal beam (2).

8. A steel cage hoisting fixture for bridge engineering construction as claimed in claim 4, characterized in that: The positioning structure (5) comprises an outer rack (5.1), an inner rack (5.2) and a first transverse elastic telescopic rod (5.3); the outer rack (5.1) is fixedly mounted on the inner side surface of the suspension seat (3); the first transverse elastic telescopic rod (5.3) is fixed on the top of the hook (4); the inner rack (5.2) is fixedly mounted on the protruding end of the first transverse elastic telescopic rod (5.3); and the inner rack (5.2) is located on the inner side of the outer rack (5.1).

9. A steel cage hoisting fixture for bridge engineering construction as claimed in claim 8, characterized in that: The outer rack (5.1) and the inner rack (5.2) are distributed on both sides of the outer top block (8), and the top ends of the two inner racks (5.2) are connected to the first transverse elastic telescopic rod (5.3) through the auxiliary top block (10). The auxiliary top block (10) is configured to match the shape of the outer top block (8), and when the suspension seat (3) is located at the lowest position, the outer vertical surface of the inner top block (9) is in contact with the outer top block (8) and the inner vertical surface of the auxiliary top block at the same time.

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