Hoisting device suitable for small caisson
By designing a lifting device suitable for small caissons and using a structure of main beams, connecting steel pipes, limiting columns and winding slings, the problem of insufficient load-bearing of the existing hangers and damage to the concrete structure was solved, achieving higher bearing capacity and Longer service life.
Patent Information
- Application Number
- CN202421002555.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-09
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-09
AI Technical Summary
The existing caisson hanging racks lack load-bearing capacity when hoisting large-scale caissons, which can easily lead to the breaking of the hoisting lugs, and the 4-point hoisting method will damage the concrete structure.
A hoisting device suitable for small caissons is designed. It uses two parallel main beams, contact steel pipes connected by flanges, limit columns and wound upper and lower slings to form an 8-point hoisting, which improves the efficiency of the hoisting. Bearing capacity and stability.
The bearing capacity of the device is greatly improved, the service life is longer, and the 8-point lifting method avoids damage to the concrete structure caused by unilateral stress.
Smart Images
Figure CN222374125U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of small caisson hoisting, in particular to a hoisting device suitable for small caissons. Background Art
[0002] Caisson is a kind of deep foundation, mostly used in docks and breakwaters. It is a box-type structure with a top but no bottom, with partitions inside, which can float in water. The sinking or floating of the caisson can be controlled by adjusting the ballast water in the box. The small caisson is a thin-walled concrete structure, and its lifting point is a steel pipe embedded in the wall of the cylinder, which requires a special hanger for lifting and installation.
[0003] There are three types of existing caisson hangers: single-layer hangers, movable hangers, and double-layer hangers. The single-layer hanger has a simple structure, and the entire hanger is a rigid connection structure, which makes it stronger than other hangers and thus safer. However, its simple structure also leads to low applicability. In addition, when using the existing hanger for hoisting, it is necessary to use a lifting lug to hang the sling. The load-bearing capacity of the lifting lug cannot meet the hoisting of large-mass caissons, has a short service life, and is prone to the risk of breakage. The ordinary four-point hoisting method will generate unilateral stress at the hoisting point, thereby damaging the concrete structure on that side. Summary of the invention
[0004] In view of this, the utility model provides a hoisting device suitable for a small caisson, which has the characteristics of wide applicability, high hoisting safety, and no damage to the small caisson.
[0005] The utility model solves the above problems through the following technical means:
[0006] The utility model is suitable for a lifting device for a small caisson, comprising two main beams arranged in parallel, two connecting steel pipes arranged between the two main beams and close to the two ends of the main beams and connected by flanges, a first limiting column arranged at the upper end of the main beam outside the two connecting steel pipes, a second limiting column and a third limiting column arranged in sequence at the lower end of the main beam outside the first limiting column, a lower sling looped between the connecting steel pipes and the first limiting column, two lifting rings arranged at the two ends of the lower sling loop for hanging on the lifting point of the small caisson, and an upper sling looped between the second limiting column and the third limiting column for hanging on the hook of a crane ship.
[0007] As a further improvement of the above technical solution, a cross-shaped reinforcement plate is provided inside the main beam.
[0008] As a further improvement of the above technical solution, the first limiting column, the second limiting column and the third limiting column all pass through the main beam and are clamped and fixed on the cross-shaped reinforcement plate.
[0009] As a further improvement of the above technical solution, an anti-slip mechanism is sleeved on the lifting ring.
[0010] Preferably, the anti-slip mechanism is specifically an anti-slip pin inserted into a steel pipe hanging point of the small caisson.
[0011] As a further improvement of the above technical solution, anti-collision blockages are provided at both ends of the main beam.
[0012] As a further improvement of the above technical solution, an anti-corrosion layer is sprayed on the entire surface of the lifting device.
[0013] It can be seen from the above technical solution that the utility model has the following beneficial effects:
[0014] The utility model is suitable for the lifting device of small caissons. The connecting steel pipes are connected by the flange plate, and the connecting steel pipes of different lengths can be replaced according to the size of the small caisson, and the application range is wider; and the single straight lifting rope is changed into two upper lifting ropes and lower lifting ropes which are wrapped around and hung on the main beam, and the main beam is used as a lifting lug and limited by the first limiting column, the second limiting column and the third limiting column, so that the bearing capacity is greatly improved, and the service life is longer and safer; each end of the lower lifting rope has two lifting rings, which can be used to lift the two corresponding lifting points inside and outside the wall of the small caisson respectively, thereby forming an 8-point lifting, which not only improves the stability of the lifting, but also avoids the situation where the lever force generated during unilateral lifting causes damage to the concrete structure at the lifting point. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the lifting device for a small caisson of the utility model when lifting a small caisson;
[0016] Figure 2 It is a structural schematic diagram of a hoisting device suitable for a small caisson of the utility model;
[0017] Figure 3 for Figure 2 Front view of
[0018] Figure 4 for Figure 3 Right view of .
[0019] like Figure 1-Figure 4 , main beam-1, cross-shaped reinforcement plate-11, anti-collision plug-12, flange-2, connecting steel pipe-3, first limit column-41, second limit column-42, third limit column-43, lower lifting cable-5, lifting ring-6, anti-slip mechanism-61, upper lifting cable-7, small caisson-8. DETAILED DESCRIPTION
[0020] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.
[0021] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.
[0022] The utility model will be described in detail below with reference to the accompanying drawings. Figures 1 to 4 As shown: the lifting device suitable for small caissons described in this embodiment includes two parallel main beams 1, two connecting steel pipes 3 connected between the two main beams 1 through flanges 2 and arranged near the two ends of the main beams 1, a first limiting column 41 arranged at the upper end of the main beam 1 outside the two connecting steel pipes 3, a second limiting column 42 and a third limiting column 43 arranged at the lower end of the main beam 1 outside the first limiting column 41 in sequence, a lower sling 5 looped between the connecting steel pipe 3 and the first limiting column 41, two lifting rings 6 arranged at the two ends of the lower sling 5 for hanging on the lifting point of a small caisson 8, and an upper sling 7 looped between the second limiting column 42 and the third limiting column 43 for hanging on the hook of a crane ship.
[0023] The lifting device suitable for small caissons described in this embodiment connects the connecting steel pipe 3 through the flange 2, and can replace the connecting steel pipe 3 of different lengths according to the size of the small caisson 8, and has a wider scope of application; and the single straight lifting sling is changed into two upper lifting ropes 7 and lower lifting ropes 5 wrapped around the main beam 1, and the main beam 1 is used as a lifting lug and limited by the first limiting column 41, the second limiting column 42 and the third limiting column 43, so that its bearing capacity is greatly improved, and the service life is longer and safer; each end of the lower lifting rope 5 has two lifting rings 6, which can be used to lift the two corresponding lifting points inside and outside the wall of the small caisson 8 respectively, thereby forming an 8-point lifting, which not only improves the stability of the lifting, but also avoids the situation where the lever force generated during unilateral lifting causes damage to the concrete structure at the lifting point.
[0024] As a further improvement of the above technical solution, a cross-shaped reinforcing plate 11 is provided inside the main beam 1. Figure 4 As shown, the strength of the main beam 1 is further improved, and deformation and damage of the main beam 1 caused by excessive lifting tension is avoided, thereby extending the service life.
[0025] As a preferred implementation of the above technical solution, the cross-shaped reinforcement plate 11 is arranged in the main beam 1 between the connecting steel pipe 3 and the end. This local reinforcement structure not only ensures the overall strength and reduces material waste, but also facilitates installation and welding, reducing the overall mass.
[0026] As a further improvement of the above technical solution, the first limiting column 41, the second limiting column 42 and the third limiting column 43 all pass through the main beam 1 and are clamped and fixed on the cross-shaped reinforcing plate 11. Figure 4 As shown, the first limiting column 41, the second limiting column 42 and the third limiting column 43 are fixed by the main beam 1 and the cross-shaped reinforcing plate 11 at the same time, thereby improving the firmness of the connection, avoiding deformation and damage caused by the pulling of the upper suspension cable 7 and the lower suspension cable 5, and extending the service life.
[0027] As a further improvement of the above technical solution, an anti-slip mechanism 61 is sleeved on the lifting ring 6. The structure sleeved on the lifting ring 6 does not need to be manually carried to install and disassemble the anti-slip mechanism 61, thereby reducing labor intensity and preventing loss.
[0028] Specifically, the anti-slip mechanism 61 is an anti-slip pin inserted into the steel pipe lifting point of the small caisson 8, one end of the anti-slip pin is fixed on a connecting seat for passing through the lifting ring 6, and the other end of the anti-slip pin is manually inserted into the limiting hole of the above-mentioned steel pipe lifting point before lifting. During the process of tightening the lifting ring 6, the anti-slip pin is acted upon by friction to cause the connecting seat to slide along the lifting ring 6 to an appropriate position, thereby completing the limiting of the lifting ring 6.
[0029] As a further improvement of the above technical solution, anti-collision plugs 12 are provided at both ends of the main beam 1. The anti-collision plugs 12 can not only prevent rigid collision during lifting and falling, but also seal the main beam 1 to avoid internal water corrosion and extend its service life.
[0030] As a further improvement of the above technical solution, an anti-corrosion layer (not shown in the figure) is sprayed on the entire surface of the lifting device to avoid surface corrosion and extend the service life.
[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.
Claims
1. A hoisting device suitable for a small caisson, characterized in that: It includes two parallel main beams, two connecting steel pipes connected between the two main beams through flanges and arranged near the two ends of the main beams, a first limiting column arranged at the upper end of the main beam outside the two connecting steel pipes, a second limiting column and a third limiting column arranged at the lower end of the main beam outside the first limiting column in sequence, a lower sling looped between the connecting steel pipes and the first limiting column, two lifting rings arranged at the two ends of the lower sling loop for hanging on the lifting points of a small caisson, and an upper sling looped between the second limiting column and the third limiting column for hanging on the hook of a crane ship.
2. A hoisting device suitable for a small caisson according to claim 1, characterized in that: A cross-shaped reinforcement plate is arranged inside the main beam.
3. A hoisting device suitable for a small caisson according to claim 2, characterized in that: The first limiting column, the second limiting column and the third limiting column all pass through the main beam and are clamped and fixed on the cross-shaped reinforcement plate.
4. A hoisting device suitable for a small caisson according to claim 1, characterized in that: An anti-slip mechanism is sleeved on the lifting ring.
5. A hoisting device suitable for a small caisson according to claim 4, characterized in that: The anti-drop mechanism is specifically an anti-drop pin inserted into the steel pipe hanging point of the small caisson.
6. A hoisting device suitable for a small caisson according to claim 1, characterized in that: Anti-collision blocking is provided at both ends of the main beam.
7. A hoisting device suitable for a small caisson according to claim 1, characterized in that: The entire surface of the lifting device is sprayed with an anti-corrosion layer.