Steel sheet pile support device
By using detachable corrugated steel plates and support components, the problems of difficult disassembly and corrosion breakage of channel steel support devices are solved, providing a convenient and stable foundation pit support solution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI ROAD & BRIDGE GRP
- Filing Date
- 2025-07-11
- Publication Date
- 2026-06-05
AI Technical Summary
The existing channel steel support device is assembled by welding, which makes disassembly difficult and the joints are prone to rust and breakage, posing a safety hazard.
It adopts detachable corrugated steel plates and support components, and is assembled using air cylinders and telescopic shafts. Combined with U-shaped shafts, locking nuts, clamping plates and diagonal bracing components, it achieves a stable connection and adjustment.
It enables convenient disassembly and provides highly corrosion-resistant foundation pit support, avoiding rust and breakage at welded joints and improving safety and stability.
Smart Images

Figure CN224325764U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of foundation pit support technology, specifically to a steel sheet pile support device. Background Technology
[0002] Support is a set of measures to support, reinforce and protect the side walls and surrounding environment to ensure the safety of underground structure construction and the surrounding environment of the foundation pit. It is formed by simple steel sheet piles to form a retaining wall, which is composed of channel steel with interlocking or parallel joints. The channel steel has good durability. After the foundation pit construction is completed and the soil is backfilled, the channel steel can be pulled out and recycled for reuse.
[0003] When assembling using channel steel, direct welding is generally used. However, welding makes disassembly more difficult later on, and because the support is exposed to the environment, long-term exposure to wind and rain can cause the joints to rust or even break, posing certain safety hazards. Utility Model Content
[0004] The purpose of this utility model is to solve the problem that when assembling with channel steel as described in the background art, the assembly is generally carried out by direct welding. The welding assembly method is more troublesome when disassembling later, and because the support is exposed to the environment, the joints are prone to rust or even breakage after long-term exposure to wind and rain. This utility model provides a steel sheet pile support device.
[0005] To solve the above-mentioned technical problems, this utility model adopts the following technical solution: a steel sheet pile support device, comprising:
[0006] Two spaced-apart frames comprising multiple detachably connected corrugated steel plates;
[0007] The first I-beam steel plate is set on the frame and located on one side of the two frames that are close to each other;
[0008] One or more support components include an air cylinder and a telescopic shaft inserted inside the air cylinder, wherein the ends of the telescopic shaft that are away from the air cylinder are respectively secured to the first I-shaped steel plates on both sides.
[0009] Furthermore, each end of the corrugated steel plate is provided with an insertion hole, and a connecting plate is inserted into the insertion hole of an adjacent corrugated steel plate.
[0010] A U-shaped shaft is threaded through the first I-shaped steel plate, and the two ends of the U-shaped shaft pass through one end of the connecting plate and are threaded with locking nuts.
[0011] Furthermore, the air cylinder is equipped with an air valve for filling and releasing air, and the air valve is used to connect an external air pump.
[0012] Furthermore, both ends of the air cylinder and the telescopic shaft are respectively provided with clamping plates for engaging with the first I-shaped steel plate, and the clamping plates are provided with clamping grooves that engage with the first I-shaped steel plate.
[0013] Furthermore, the card plate is provided with a cross-shaped stop bar, and the ends of the air cylinder and the telescopic shaft are respectively provided with slots for insertion into the cross-shaped stop bar.
[0014] Furthermore, a second I-beam is inserted through the corrugated steel plate to penetrate into the soil inside the pit wall, and one end of the second I-beam is located inside the corrugated steel plate to support the first I-beam.
[0015] Furthermore, it also includes one or more diagonal bracing assemblies disposed between the two first I-shaped steel plates. The diagonal bracing assembly includes a T-shaped abutment plate for abutting against the first I-shaped steel plates on both sides and a diagonal bracing plate disposed between the two T-shaped abutment plates. The open sides of the two T-shaped abutment plates are close to each other, and the top rests on the first I-shaped steel plate and the bottom abuts against the second I-shaped steel plate.
[0016] Furthermore, threaded shafts are threaded through the upper and lower horizontal plates of the T-shaped abutment plate, and locking nuts are respectively provided at both ends of the threaded shafts passing through the T-shaped abutment plate. The two ends of the diagonal brace are respectively sleeved on the threaded shafts on both sides and have slots for the threaded shafts to move.
[0017] Furthermore, the threaded shafts on both sides are respectively provided with adjusting nuts on the upper and lower sides of the inclined support plate for adjusting the tilt angle of the inclined support plate.
[0018] Compared with the prior art, this utility model has the following beneficial effects:
[0019] This utility model sets the frame as multiple detachable corrugated steel plates, and sets first I-beams on the inner side of the corrugated steel plates and sets support components. By adjusting the length of the support components, they can abut against the first I-beams on both sides, and the first I-beams abut against the corrugated steel plates, thereby achieving effective support for the side walls of the foundation pit. This solves the problem of rust or even breakage at the joints caused by assembly by welding. Attached Figure Description
[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:
[0021] Figure 1This is a schematic diagram of the structure of an embodiment of the present utility model;
[0022] Figure 2 This is a bottom view of an embodiment of the present invention.
[0023] Figure 3 This is a side view of an embodiment of the present invention.
[0024] Figure 4 This is a structural schematic diagram of a diagonal brace component according to an embodiment of the present invention.
[0025] In the diagram: 1. Frame; 11. Corrugated steel plate; 2. First I-beam steel plate; 3. Support assembly; 31. Air cylinder; 32. Telescopic shaft; 111. Insertion hole; 12. Connecting plate; 21. U-shaped shaft; 22. Locking nut; 311. Air valve; 33. Clamping plate; 34. Cross-shaped stop bar; 4. Second I-beam steel plate; 5. Diagonal brace assembly; 51. T-shaped abutment plate; 52. Diagonal brace plate; 53. Threaded shaft; 54. Locking nut; 55. Slot; 56. Adjusting nut; 57. Slide groove; 23. Connecting steel plate. Detailed Implementation
[0026] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0027] Please see Figure 1-4 The present invention relates to a steel sheet pile support device, comprising:
[0028] Two spaced-apart frames 1, each comprising a plurality of detachably connected corrugated steel plates 11;
[0029] The first I-beam steel plate 2 is set on the frame 1 and located on one side of the two frames 1 that are close to each other;
[0030] One or more support components 3 include an air cylinder 31 and a telescopic shaft 32 inserted in the air cylinder 31. The ends of the telescopic shaft 32 that are far away from the air cylinder 31 are respectively locked onto the first I-shaped steel plates 2 on both sides.
[0031] In use, the corrugated steel plate 11 is fitted to the side walls of the pit to be supported. The structure of the corrugated steel plate 11 can increase the base area with the inner wall of the pit and improve the stability of the support. Then, the first I-beam steel plate 2 is installed on the side where the two corrugated steel plates 11 are close to each other, and one or more support components 3 are installed between the two first I-beam steel plates 2. The air cylinder 31 is inflated by using an external air pump, and the telescopic shaft 32 is extended until the two ends of the telescopic shaft 32 and the air cylinder 31 are respectively locked on the first I-beam steel plates 2 on both sides, thereby achieving the support of the inner walls of the pit on both sides.
[0032] In one embodiment, the two ends of the corrugated steel plate 11 are respectively provided with insertion holes 111, and a connecting plate 12 is inserted into the insertion holes 111 of adjacent corrugated steel plates 11.
[0033] A U-shaped shaft 21 is threaded through the first I-beam steel plate 2. Both ends of the U-shaped shaft 21 pass through one end of the connecting plate 12 and are threaded with locking nuts 22. This design allows for the establishment of a connection between adjacent corrugated steel plates 11 by providing insertion holes 111 at both ends of the corrugated steel plate 11 and threading the connecting plate 12 through these holes, thus enabling the assembly of the frame 1. Furthermore, the U-shaped shaft 21, with its two ends passing through the connecting plate 12 and secured with locking nuts 22, establishes a stable connection between the first I-beam steel plate 2 and the connecting plate 12, allowing the first I-beam steel plate 2 to be mounted on the frame 1. Additionally, the locking mechanism between the U-shaped shaft 21 and the connecting plate 12 limits the movement of the connecting plate 12, thereby locking the two adjacent corrugated steel plates 11 and achieving a stable connection between them.
[0034] In one embodiment, the air cylinder 31 is provided with an air valve 311 for inflation and deflation, which is used to connect an external air pump. This design allows for easy inflation of the air cylinder 31 via an external air pump or deflation via the air valve 311, enabling adjustment of the extension length of the telescopic rod and facilitating the use of the support assembly 3.
[0035] In one embodiment, the air cylinder 31 and the telescopic shaft 32 are respectively provided with clamping plates 33 for engaging with the first I-shaped steel plate 2 at both ends. The clamping plates 33 are provided with grooves for engaging with the first I-shaped steel plate 2. This design facilitates the engagement of the air cylinder 31 and the telescopic shaft 32 with the clamping plates 33 at both ends of the air cylinder 31 and the telescopic shaft 32 on the first I-shaped steel plate 2. The grooves on the clamping plates 33 facilitate the engagement of the clamping plates 33 with the first I-shaped steel plate 2.
[0036] In one embodiment, the clamping plate 33 is provided with a cross-shaped stop bar 34, and the ends of the air cylinder 31 and the telescopic shaft 32 are respectively provided with slots for insertion into the cross-shaped stop bar 34. This design, by providing the cross-shaped stop bar 34 on the clamping plate 33 and the slots on the air cylinder 31 and the telescopic shaft 32, can limit the movement of the air cylinder 31 and the telescopic shaft 32, and facilitates the support of the clamping plate 33.
[0037] In one embodiment, a second I-beam 4 is inserted through the corrugated steel plate 11 to penetrate into the soil inside the pit wall. One end of the second I-beam 4 within the corrugated steel plate 11 supports the first I-beam 2. This design, by inserting the second I-beam 4 through the corrugated steel plate 11 and penetrating into the soil inside the pit wall, allows for vertical positioning of the corrugated steel plate 11 after insertion into the pit wall, improving the stability of the support device. Furthermore, the support of the first I-beam 2 by the second I-beam 4, combined with the locking of the U-shaped shaft 21 and the connecting plate 12, further ensures the structural stability of the support device after installation.
[0038] In one embodiment, the system further includes one or more diagonal bracing components 5 disposed between two first I-shaped steel plates 2. Each diagonal bracing component 5 includes a T-shaped abutment plate 51 for abutting against the first I-shaped steel plates 2 on both sides, and a diagonal bracing plate 52 disposed between the two T-shaped abutment plates 51. The open sides of the two T-shaped abutment plates 51 are close to each other, with their tops resting on the first I-shaped steel plates 2 and their bottoms abutting against the second I-shaped steel plate 4. This design allows for the adjustment of the inclination of the diagonal bracing plate 52 to accommodate foundation pits with different spacing by using the diagonal bracing components 5.
[0039] In one embodiment, threaded shafts 53 are threaded through the upper and lower horizontal plates of the T-shaped abutment plate 51. Locking nuts 54 are respectively provided at both ends of the threaded shafts 53 passing through the T-shaped abutment plate 51. The two ends of the diagonal brace plate 52 are respectively fitted onto the threaded shafts 53 on both sides and have slots 55 for the threaded shafts 53 to move. This design facilitates the installation of the two ends of the diagonal brace by providing the threaded shafts 53, and the slots 55 on the diagonal brace plate 52 facilitate the contact between the two ends of the diagonal brace plate 52 and the T-shaped abutment plate 51, thus simplifying the use of the diagonal brace plate 52.
[0040] In one embodiment, the threaded shafts 53 on both sides are respectively provided with adjusting nuts 56 on the upper and lower sides of the inclined support plate 52 for adjusting the tilt angle of the inclined support plate 52. This design allows the tilt angle of the inclined support plate 52 to be adjusted by changing the position of the adjusting nuts 56, and also allows the position of the inclined support plate 52 to be defined.
[0041] Preferably, the upper and lower horizontal plates of the T-shaped abutment plate 51 are respectively provided with grooves 57 for the movement of the threaded shaft 53. This design allows the position of the threaded shaft 53 to be adjusted by providing the grooves 57, making it convenient to use as needed.
[0042] Preferably, a connecting steel plate 23 is provided between adjacent second I-shaped steel plates 4, and the connecting steel plate 23 is bolted onto the second I-shaped steel plate 4. This design facilitates the connection between adjacent second I-shaped steel plates 4.
[0043] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.
Claims
1. A sheet pile support device, characterized in that, include: Two spaced-apart frames (1) comprising multiple detachably connected corrugated steel plates (11); The first I-beam steel plate (2) is set on the frame (1) and located on the side of the two frames (1) that are close to each other; One or more support components (3) include an air cylinder (31) and a telescopic shaft (32) inserted in the air cylinder (31), wherein the ends of the telescopic shaft (32) that are far away from the air cylinder (31) are respectively clamped on the first I-shaped steel plates (2) on both sides.
2. The sheet pile support device according to claim 1, characterized in that, The corrugated steel plate (11) has insertion holes (111) at both ends, and a connecting plate (12) is inserted into the insertion holes (111) of adjacent corrugated steel plates (11). A U-shaped shaft (21) is threaded through the first I-shaped steel plate (2). Both ends of the U-shaped shaft (21) pass through one end of the connecting plate (12) and are threaded with locking nuts (22).
3. The sheet pile support device according to claim 1 or 2, characterized in that, The air cylinder (31) is provided with an air valve (311) for filling and releasing air, and the air valve (311) is used to connect an external air pump.
4. The sheet pile support device according to claim 3, characterized in that, The air cylinder (31) and the telescopic shaft (32) are respectively provided with a clamping plate (33) for engaging with the first I-shaped steel plate (2), and the clamping plate (33) is provided with a groove for engaging with the first I-shaped steel plate (2).
5. The sheet pile support device according to claim 4, characterized in that, The card plate (33) is provided with a cross-shaped stop bar (34), and the ends of the air cylinder (31) and the telescopic shaft (32) are respectively provided with slots for insertion into the cross-shaped stop bar (34).
6. The sheet pile support device according to claim 1, characterized in that, The corrugated steel plate (11) is provided with a second I-beam (4) for penetrating into the soil inside the pit wall. One end of the second I-beam (4) inside the corrugated steel plate (11) is used to support the first I-beam (2).
7. The sheet pile support device according to claim 6, characterized in that, It also includes one or more diagonal bracing components (5) disposed between two first I-shaped steel plates (2). The diagonal bracing components (5) include T-shaped abutment plates (51) for abutting against the first I-shaped steel plates (2) on both sides and diagonal bracing plates (52) disposed between the two T-shaped abutment plates (51). The open sides of the two T-shaped abutment plates (51) are close to each other, and the top rests on the first I-shaped steel plate (2) and the bottom abuts against the second I-shaped steel plate (4).
8. The sheet pile support device according to claim 7, characterized in that, The upper and lower horizontal plates of the T-shaped abutment plate (51) are provided with threaded shafts (53), and locking nuts (54) are respectively provided at both ends of the threaded shafts (53) that pass through the T-shaped abutment plate (51). The two ends of the diagonal brace plate (52) are respectively sleeved on the threaded shafts (53) on both sides and have slots (55) for the threaded shafts (53) to move.
9. The sheet pile support device according to claim 8, characterized in that, The threaded shafts (53) on both sides are respectively provided with adjusting nuts (56) on the upper and lower sides of the inclined support plate (52) for adjusting the tilt angle of the inclined support plate (52).