High-strength compression-resistant steel casing

Abstract

The utility model belongs to steel casing technical field especially, it is a kind of high-strength compression-resistant steel casing, including steel casing main part, the steel casing main part includes equidistance distribution's steel casing assembly, and steel casing assembly and steel casing assembly between in order from top to bottom distribution in turn, the steel casing assembly includes steel cylinder, and the bottom welding of steel cylinder outer wall has butt joint cover, the utility model discloses steel casing main part is connected by multiple steel casing assembly through butt joint cover and guide strip, can increase or decrease the number of components according to actual demand, the cooperation of guide groove and guide strip ensures accurate alignment when assembling, bolt hole is fixedly connected by bolt, both guarantee the stability of structure, and greatly reduce the difficulty of transportation and storage, the vertical reinforcing strip welded in steel cylinder inner wall and the horizontal reinforcing ring of steel cylinder outer wall form grid-like support structure, effectively disperses radial pressure, prevents steel cylinder deformation, make it applicable to deep foundation pit or high pressure environment.

Description

Technical Field

[0001] This utility model relates to the field of steel casing technology, and in particular to a high-strength, pressure-resistant steel casing. Background Technology

[0002] Steel casing is a temporary or permanent support structure widely used in construction, bridge, tunnel and other engineering projects. It is mainly used to protect pile foundations, prevent soil collapse and provide a stable construction environment.

[0003] Traditional steel casings typically employ a one-piece structure, which is simple to manufacture but takes up a lot of space during transportation and storage, making them extremely inconvenient to carry.

[0004] In addition, the radial compressive strength of the integrated steel casing is relatively weak, and it is prone to deformation or damage, especially in deep foundation pits or high-pressure environments, which affects construction safety and efficiency.

[0005] Therefore, the shortcomings of existing steel casings are mainly reflected in the following two aspects:

[0006] 1. Structural limitations: Traditional steel casings are designed as a single piece, which cannot be flexibly adjusted in length according to construction needs, making transportation and installation difficult, especially in narrow or complex terrain.

[0007] 2. Insufficient compressive strength: The existing steel casing has a single reinforcement measure, which mainly relies on the thickness of the casing and lacks effective internal and external reinforcement structures, resulting in limited radial bearing capacity and difficulty in meeting the requirements of high-strength construction. Utility Model Content

[0008] In view of the shortcomings of the prior art, this utility model provides a high-strength compression-resistant steel casing, which overcomes the shortcomings of the prior art and effectively solves the problems of structural limitations and insufficient compression resistance.

[0009] To achieve the above objectives, the present invention adopts the following technical solution:

[0010] A high-strength, pressure-resistant steel casing includes a steel casing body, which comprises steel casing assemblies distributed at equal intervals, arranged sequentially from top to bottom. Each steel casing assembly includes a steel cylinder, with a butt sleeve welded to the bottom of the outer wall of the steel cylinder. Vertical reinforcing strips are welded at equal intervals on the inner wall of the steel cylinder, and adjacent transverse reinforcing rings are welded to the outer wall of the steel cylinder.

[0011] Preferably, the steel cylinder located below the main body of the steel casing is slidably connected to the inner wall of the mating sleeve of the steel cylinder located above the main body of the steel casing.

[0012] Preferably, the outer wall of the docking sleeve is provided with guide grooves that are evenly distributed, and the top of the outer wall of the steel casing body is welded with guide strips that are evenly distributed, and the guide strips are slidably connected to the inner wall of the guide grooves.

[0013] Preferably, the top of the outer wall of the steel cylinder is provided with symmetrically distributed hanging holes on one side of the guide strip.

[0014] Preferably, a top plate is welded to the outer wall of the top of the steel casing body.

[0015] Preferably, bolt holes are provided at equal intervals around the outer walls of the steel cylinder and the connecting sleeve, and the steel cylinder and the connecting sleeve are fixedly connected by bolts.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. The high-strength, pressure-resistant steel casing in this design consists of multiple steel casing components connected by connecting sleeves and guide strips. The number of components can be flexibly increased or decreased according to actual needs. The cooperation between the guide groove and the guide strip ensures precise alignment during assembly. The bolt holes are fixed by bolts, which not only ensures the stability of the structure but also greatly reduces the difficulty of transportation and storage.

[0018] 2. The high-strength, pressure-resistant steel casing in this design features a grid-like support structure formed by vertical reinforcing strips welded to the inner wall of the casing and transverse reinforcing rings on the outer wall. This structure effectively disperses radial pressure, prevents deformation of the casing, and makes it suitable for deep foundation pits or high-pressure environments. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of a high-strength, pressure-resistant steel casing proposed in this utility model;

[0020] Figure 2 This is a schematic diagram showing the overall structure of a high-strength, pressure-resistant steel casing proposed in this utility model.

[0021] Figure 3 This is a schematic diagram of the structure of a high-strength, pressure-resistant steel casing when connecting steel cylinders according to this utility model;

[0022] Figure 4 This is a schematic diagram of the connecting sleeve structure of a high-strength, pressure-resistant steel casing proposed in this utility model.

[0023] In the diagram: 1. Steel casing body; 2. Steel casing assembly; 3. Steel casing; 4. Connecting sleeve; 5. Guide strip; 6. Vertical reinforcing strip; 7. Horizontal reinforcing ring; 8. Hanging hole; 9. Top plate; 10. Guide groove; 11. Bolt hole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figures 1-4 Example 1: A high-strength, pressure-resistant steel casing includes a steel casing body 1. The steel casing body 1 includes steel casing assemblies 2 distributed at equal intervals, and the steel casing assemblies 2 are arranged sequentially from top to bottom. Each steel casing assembly 2 includes a steel cylinder 3, and a butt sleeve 4 is welded to the bottom of the outer wall of the steel cylinder 3. The steel cylinder 3 located below the steel casing body 1 is slidably connected to the inner wall of the butt sleeve 4 of the steel cylinder 3 located above the steel casing body 1. Bolt holes 11 are distributed at equal intervals around the outer walls of the steel cylinder 3 and the butt sleeve 4, and the steel cylinder 3 and the butt sleeve 4 are fixedly connected by bolts.

[0026] The steel casing assembly 2 is connected vertically via the mating sleeve 4. The lower steel cylinder 3 slides into the mating sleeve 4 of the upper steel cylinder 3. The guide strip 5 slides along the guide groove 10. After ensuring accurate alignment, it is fixed through the bolt hole 11 to form a stable continuous steel cylinder 3.

[0027] In this embodiment, the main body 1 of the steel casing is composed of multiple steel casing components 2 connected by a connecting sleeve 4 and a guide strip 5. The number of components can be flexibly increased or decreased according to actual needs. The cooperation between the guide groove 10 and the guide strip 5 ensures accurate alignment during assembly. The bolt holes 11 are fixedly connected by bolts, which not only ensures the stability of the structure, but also greatly reduces the difficulty of transportation and storage.

[0028] In the second embodiment, vertical reinforcing strips 6 are welded at equal intervals on the inner wall of the steel cylinder 3, and adjacent transverse reinforcing rings 7 are welded on the outer wall of the steel cylinder 3.

[0029] Vertical reinforcing strips 6 are uniformly welded to the inner wall of the steel cylinder 3 to enhance the bending resistance in the longitudinal direction. Transverse reinforcing rings 7 are spaced apart on the outer wall of the steel cylinder 3 to form a ring support to resist radial pressure. The two work together to significantly improve the overall compressive strength.

[0030] In this embodiment, the vertical reinforcing strips 6 welded to the inner wall of the steel cylinder 3 and the transverse reinforcing rings 7 on the outer wall of the steel cylinder 3 form a grid-like support structure, which effectively disperses radial pressure, prevents deformation of the steel cylinder 3, and makes it suitable for deep foundation pits or high-pressure environments.

[0031] The outer wall of the docking sleeve 4 is provided with guide grooves 10 that are evenly distributed, and the top of the outer wall of the steel casing body 1 is welded with guide strips 5 that are evenly distributed. The guide strips 5 are slidably connected to the inner wall of the guide grooves 10.

[0032] The combination of guide groove 10 and guide strip 5 not only simplifies the assembly process, but also avoids the risk of misalignment during connection. Bolt fixing further ensures that there is no loosening between the components and adapts to dynamic construction environments.

[0033] The top of the outer wall of the steel cylinder 3 is provided with symmetrically distributed hanging holes 8 through one side of the guide strip 5, and a top plate 9 is welded to the top outer wall of the steel cylinder 3 at the very top of the steel casing body 1.

[0034] The hanging holes 8 are symmetrically opened on the top of the steel cylinder 3 to facilitate crane lifting. The top plate 9 is welded to the topmost steel cylinder 3 to provide additional support surface and prevent the steel cylinder 3 from sinking.

[0035] Working principle:

[0036] Assembly stage: Select the number of steel casing components 2 according to construction requirements, align the guide strip 5 of the lower steel cylinder 3 with the guide groove 10 of the upper docking sleeve 4, insert it and fix it with bolts through the bolt holes 11 to form a complete steel casing body 1.

[0037] Reinforcement stage: Vertical reinforcing strips 6 and horizontal reinforcing rings 7 form a three-dimensional support network inside and outside the steel cylinder 3, which evenly distributes external soil pressure or water pressure and prevents local deformation.

[0038] Construction phase: The steel casing body 1 is hoisted to the target position through the hoisting hole 8, the top plate 9 provides stable support, and the connecting sleeve 4 is fixed with bolts to ensure the strength of the connection, which is suitable for deep foundation pit or high pressure operation.

[0039] Disassembly and transportation: The bolts are removed by reverse operation, and the steel casing assembly 2 is separated, which greatly reduces the transportation volume and facilitates reuse.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A high-strength, pressure-resistant steel casing comprising a steel casing body (1), characterized in that, The main body (1) of the steel casing includes steel casing assemblies (2) distributed at equal intervals, and the steel casing assemblies (2) are distributed sequentially from top to bottom. The steel casing assembly (2) includes a steel cylinder (3), and a butt sleeve (4) is welded to the bottom of the outer wall of the steel cylinder (3). Vertical reinforcing strips (6) are welded at equal intervals on the inner wall of the steel cylinder (3), and adjacent transverse reinforcing rings (7) are welded to the outer wall of the steel cylinder (3).

2. A high-strength, pressure-resistant steel casing according to claim 1, characterized in that The steel cylinder (3) located below the main body (1) is slidably connected to the inner wall of the connecting sleeve (4) of the steel cylinder (3) located above the main body (1).

3. A high-strength, pressure-resistant steel casing according to claim 1, characterized in that, The outer wall of the docking sleeve (4) is provided with guide grooves (10) that are evenly distributed, and the top of the outer wall of the steel casing body (1) is welded with guide strips (5) that are evenly distributed. The guide strips (5) are slidably connected to the inner wall of the guide grooves (10).

4. The high-strength, compression-resistant steel casing of claim 1, wherein, The top of the outer wall of the steel cylinder (3) is provided with symmetrically distributed hanging holes (8) on one side of the guide strip (5).

5. A high-strength, pressure-resistant steel casing according to claim 1, characterized in that, A top plate (9) is welded to the outer wall of the top of the steel cylinder (3) located at the top of the main body (1) of the steel casing.

6. A high-strength, pressure-resistant steel casing according to claim 1, characterized in that, The outer walls of the steel cylinder (3) and the connecting sleeve (4) are provided with bolt holes (11) that are evenly distributed, and the steel cylinder (3) and the connecting sleeve (4) are fixedly connected by bolts.

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