Modular steel sheet pile cofferdam rapid butt joint structure

Abstract

The utility model provides a kind of modularization steel sheet pile cofferdam quick butt joint structure.It is related to cofferdam construction technical field.The modularization steel sheet pile cofferdam quick butt joint structure includes steel sheet pile main body, the side of steel sheet pile main body is equipped with two butt grooves, the other side of steel sheet pile main body is fixedly installed with two butt convex strips, two the butt convex strips are respectively matched with two butt grooves, the inner wall of two butt grooves is inlayed with the sealing sheet of shape adaptation, the outer wall of the side of steel sheet pile main body is fixedly installed with external blocking strip, the inner wall of external blocking strip is inlayed with sealing gasket;Two the butt convex strips mutually close side are equipped with stable hole, the stable mechanism is equipped on steel sheet pile main body, the stable mechanism is matched with stable hole.The utility model has the advantages of fast butt joint speed, better sealing effect and ensure butt joint stability.

Description

Technical Field

[0001] This utility model relates to the field of cofferdam construction technology, specifically a modular steel sheet pile cofferdam quick connection structure. Background Technology

[0002] Steel sheet pile cofferdams are widely used in the foundation construction of water conservancy, bridge and other projects due to their high strength and convenient construction.

[0003] In traditional sheet pile cofferdam construction, two adjacent sheet piles are connected by interlocking joints. While this method can easily connect two sheet piles, the connection is not stable and is prone to loosening and wobbling, resulting in poor sealing and even large-scale leakage in the cofferdam.

[0004] Therefore, it is necessary to provide a new modular steel sheet pile cofferdam rapid connection structure to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a modular steel sheet pile cofferdam rapid docking structure that offers fast docking speed, good sealing effect, and stable docking.

[0006] To solve the above-mentioned technical problems, the modular steel sheet pile cofferdam quick-connection structure provided by this utility model includes: a steel sheet pile body, two docking grooves are opened on one side of the steel sheet pile body, and two docking protrusions are fixedly installed on the other side of the steel sheet pile body. The two docking protrusions are respectively adapted to the two docking grooves. A sealing plate with a matching shape is embedded on the inner wall of each of the two docking grooves. An external stop strip is fixedly installed on the outer wall of one side of the steel sheet pile body, and a sealing gasket is embedded on the inner wall of the external stop strip. A stabilizing hole is opened on the side of the two docking protrusions that are close to each other. A stabilizing mechanism is provided on the steel sheet pile body, and the stabilizing mechanism is adapted to the stabilizing hole.

[0007] Furthermore, the main body of the sheet pile is U-shaped, the external retaining strip is L-shaped, and four stabilizing beam mounting holes are provided on the side of the main body of the sheet pile away from the external retaining strip.

[0008] Furthermore, multiple conical guide heads are fixedly installed at the bottom of the main body of the steel sheet pile.

[0009] Furthermore, the stabilizing mechanism includes a countersunk groove and a rectangular annular groove. Both the countersunk groove and the rectangular annular groove are formed on the inner wall of the sheet pile body near the docking groove. The countersunk groove is located inside the rectangular annular groove. A rectangular sealing ring is embedded in the inner wall of the rectangular annular groove. A sealing cover is provided inside the sheet pile body. The sealing cover covers the countersunk groove. One side of the sealing cover extends into the rectangular annular groove and abuts against the rectangular sealing ring. A double-ended screw is rotatably sealed inside the sealing cover. Two connecting strips are threaded onto the double-ended screw. Stabilizing plugs are fixedly installed on the opposite sides of the two connecting strips. The opposite ends of the two stabilizing plugs extend into the two docking grooves respectively. The two stabilizing plugs are slidably connected to the inner wall of the opposite side of the countersunk groove. The two stabilizing plugs pass through the two sealing plates and are movably connected to the corresponding sealing plates. Both stabilizing plugs are adapted to the corresponding stabilizing holes.

[0010] Furthermore, fixing ears are fixedly installed on both outer walls of the sealing cover, and both fixing ears are fixedly connected to the inner wall of the steel sheet pile body by bolts.

[0011] Furthermore, one end of the double-ended screw extends to the outside of the sealing cover and is fixedly mounted with a knob. The knob is provided with anti-slip threads. Two stop bars are fixedly mounted inside the sealing cover. The two stop bars pass through the two connecting strips and are slidably connected to the two connecting strips.

[0012] Furthermore, the sealing sheet, sealing gasket, and rectangular sealing ring are all made of propylene diene monomer (PPD) rubber.

[0013] Compared with related technologies, the modular steel sheet pile cofferdam rapid connection structure provided by this utility model has the following beneficial effects: I. This utility model enables the steel sheet pile body to be processed and produced in a modular form through standardized modular design. At the same time, by utilizing the docking structure of the docking protrusion and docking groove, as well as the snap-fit ​​form between the stabilizing plug and the stabilizing hole, the two steel sheet pile bodies can be quickly docked and positioned, improving assembly efficiency. Second, this utility model can maximize the sealing performance between two adjacent steel sheet pile bodies by using sealing sheets, rectangular sealing rings and sealing gaskets, thereby preventing large-area leakage. Attached Figure Description

[0014] Figure 1 A schematic diagram of the modular steel sheet pile cofferdam quick-connection structure provided by this utility model; Figure 2 This is a schematic diagram of the main structure of the steel sheet pile in this utility model; Figure 3This is a top sectional view of the present invention. Figure 4 for Figure 3 The enlarged schematic diagram of part A shown below; Figure 5 for Figure 2 The enlarged schematic diagram of section B is shown below; Figure 6 This is a schematic diagram of the internal structure of the sealing cap in this utility model; Figure 7 This is a schematic diagram of the docking and assembly of multiple sheet pile bodies in this utility model.

[0015] The following are the labeling elements in the diagram: 1. Sheet pile body; 2. Connecting groove; 3. Connecting protrusion; 4. Stabilizing beam mounting hole; 5. Conical guide head; 6. Sealing plate; 7. Stabilizing hole; 8. Countersunk groove; 9. Rectangular annular groove; 10. Rectangular sealing ring; 11. Sealing cap; 12. Double-ended screw; 13. Connecting strip; 14. Stabilizing plug; 15. Fixing lug; 16. External stop bar; 17. Sealing gasket. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Please refer to the following: Figures 1-7 .

[0018] The modular sheet pile cofferdam quick-connection structure includes: a U-shaped sheet pile body 1, with multiple conical guide heads 5 fixedly installed at the bottom of the sheet pile body 1 for quick positioning during insertion into the foundation; two docking grooves 2 are opened on one side of the sheet pile body 1, and two docking protrusions 3 are fixedly installed on the other side of the sheet pile body 1. The two docking protrusions 3 are adapted to the two docking grooves 2 respectively, and the two can form a pull-in effect, thereby enabling lateral positioning of two adjacent sheet pile bodies 1; and the inner walls of the two docking grooves 2 are inlaid with matching seals. A “L”-shaped outer retaining strip 16 is fixedly installed on one outer wall of the sheet pile body 1. A sealing gasket 17 is embedded in the inner wall of the outer retaining strip 16. When the two sheet pile bodies 1 are assembled, the sealing strip 6 and the sealing gasket 17 can deform to fill the connection and gap between the two sheet pile bodies 1 and ensure the sealing effect. In order to form a vertical positioning for the two adjacent sheet pile bodies 1, a stabilizing hole 7 is provided on the side of the two mating protrusions 3 that are close to each other. A stabilizing mechanism is provided on the sheet pile body 1 and the stabilizing mechanism is inserted into the stabilizing hole 7.

[0019] In this embodiment, the stabilizing mechanism includes a countersunk groove 8 and a rectangular annular groove 9, both formed on the inner wall of the sheet pile body 1 near the docking groove 2. The countersunk groove 8 is located inside the rectangular annular groove 9. A rectangular sealing ring 10 is embedded in the inner wall of the rectangular annular groove 9. A sealing cover 11 is provided inside the sheet pile body 1, covering the countersunk groove 8. One side of the sealing cover 11 extends into the rectangular annular groove 9 and abuts against the rectangular sealing ring 10. A double-ended screw 12 is rotatably and sealingly installed inside the sealing cover 11. One end of the double-ended screw 12 extends outside the sealing cover 11 and is fixedly installed with a knob. The knob is provided with anti-slip threads for easy manual operation. Two connecting strips 13 are threadedly installed on the double-ended screw 12. Two connecting strips 13 are fixedly installed with stabilizing plugs 14 on their opposite sides. The opposite ends of the two stabilizing plugs 14 extend into the two mating grooves 2, and the two stabilizing plugs 14 are slidably connected to the inner wall of the opposite side of the countersunk groove 8. The two stabilizing plugs 14 pass through the two sealing plates 6 and are movably connected to the corresponding sealing plates 6. In addition, fixing ears 15 are fixedly installed on the outer walls of both sides of the sealing cover 11. The two fixing ears 15 are fixedly connected to the inner wall of the sheet pile body 1 by bolts. When the two sheet pile bodies 1 are assembled by interlocking, the stabilizing plugs 14 are brought into the corresponding stabilizing holes 7 by rotating the double-headed screw 12, thereby completing the vertical positioning between the two sheet pile bodies 1.

[0020] In this embodiment, in order to facilitate the subsequent installation of stabilizing beams on the inner side of multiple sheet pile bodies 1, four stabilizing beam mounting holes 4 are provided on the side of the sheet pile body 1 away from the outer retaining strip 16.

[0021] In this embodiment, in order to ensure that the connecting strip 13 forms a stable linear motion, two stop bars are fixedly installed inside the sealing cover 11. The two stop bars pass through the two connecting strips 13 and are slidably connected to the two connecting strips 13.

[0022] In this embodiment, the sealing sheet 6, sealing gasket 17, and rectangular sealing ring 10 are all made of propylene diene monomer (PPD) rubber, which maintains a good sealing effect while also having good deformation capability.

[0023] The working principle of the modular steel sheet pile cofferdam quick-connection structure provided by this utility model is as follows: In this utility model, a single steel sheet pile body 1 is a pile module unit. Before cofferdam construction, multiple pile module units need to be prepared according to actual needs. In the initial state, the stabilizing plug 14 is not inserted into the docking groove 2 and stays in the sinking groove 8. During construction, the conical guide head 5 at the bottom of the first sheet pile body 1 is first inserted into the foundation. The connecting protrusion 3 of the second sheet pile body 1 is aligned with the connecting groove 2 on the first sheet pile body 1 and inserted. Finally, the conical guide head 5 at the bottom of the second sheet pile body 1 is also inserted into the foundation. During the process of the second sheet pile body 1 being inserted into the first sheet pile body 1, the connecting protrusion 3 will compress the sealing plate 6, thereby filling the gap. At the same time, the sealing gasket 17 will also deform, so that the connection between the two sheet pile bodies 1 is filled by the sealing gasket 17. Then, the double-headed screw 12 is rotated, and the two connecting bars 13 move away from each other, eventually bringing the two stabilizing plugs 14 into the corresponding stabilizing holes 7, thus completing the docking installation of the two sheet pile bodies 1. The docking operation is then repeated on the remaining sheet pile bodies 1 in the same way.

[0024] Compared with related technologies, the modular steel sheet pile cofferdam rapid connection structure provided by this utility model has the following beneficial effects: I. This utility model enables the steel sheet pile body 1 to be processed and produced in a modular form through standardized modular design. At the same time, by utilizing the docking structure of the docking protrusion 3 and the docking groove 2, as well as the snap-fit ​​form between the stabilizing plug 14 and the stabilizing hole 7, the two steel sheet pile bodies 1 can be quickly docked and positioned, improving assembly efficiency. Second, this utility model can maximize the sealing performance between two adjacent steel sheet pile bodies 1 by using the sealing sheet 6, the rectangular sealing ring 10 and the sealing gasket 17, thereby preventing the occurrence of large-area leakage.

[0025] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A modular steel sheet pile cofferdam rapid butt joint structure comprising a steel sheet pile body, characterized in that, Two mating grooves are provided on one side of the main body of the steel sheet pile, and two mating protrusions are fixedly installed on the other side of the main body of the steel sheet pile. The two mating protrusions are respectively adapted to the two mating grooves. A sealing plate with a matching shape is embedded on the inner wall of the two mating grooves. An external stop strip is fixedly installed on the outer wall of one side of the main body of the steel sheet pile, and a sealing gasket is embedded on the inner wall of the external stop strip. Stabilizing holes are provided on the sides of the two mating protrusions that are close to each other. The main body of the steel sheet pile is provided with a stabilizing mechanism that is adapted to the stabilizing holes.

2. The modular steel sheet pile cofferdam quick butt joint structure according to claim 1, characterized in that, The main body of the sheet pile is U-shaped, the outer retaining strip is L-shaped, the docking groove and the docking protrusion are both T-shaped, and four stabilizing beam mounting holes are provided on the side of the main body of the sheet pile away from the outer retaining strip.

3. The modular steel sheet pile cofferdam quick butt joint structure according to claim 1, characterized in that, Multiple conical guide heads are fixedly installed at the bottom of the main body of the steel sheet pile.

4. The modular steel sheet pile cofferdam rapid connection structure according to claim 2, characterized in that, The stabilizing mechanism includes a countersunk groove and a rectangular annular groove. Both the countersunk groove and the rectangular annular groove are formed on the inner wall of the sheet pile body near the docking groove. The countersunk groove is located inside the rectangular annular groove. A rectangular sealing ring is embedded in the inner wall of the rectangular annular groove. A sealing cover is provided inside the sheet pile body. The sealing cover covers the countersunk groove. One side of the sealing cover extends into the rectangular annular groove and abuts against the rectangular sealing ring. A double-ended screw is rotatably sealed inside the sealing cover. Two connecting strips are threaded onto the double-ended screw. Stabilizing plugs are fixedly installed on the opposite sides of the two connecting strips. The opposite ends of the two stabilizing plugs extend into the two docking grooves respectively. The two stabilizing plugs are slidably connected to the inner wall of the opposite side of the countersunk groove. The two stabilizing plugs pass through the two sealing plates respectively and are movably connected to the corresponding sealing plates. Both stabilizing plugs are adapted to the corresponding stabilizing holes.

5. The modular steel sheet pile cofferdam rapid connection structure according to claim 4, characterized in that, Fixing ears are fixedly installed on both outer walls of the sealing cover, and both fixing ears are fixedly connected to the inner wall of the steel sheet pile body by bolts.

6. The modular steel sheet pile cofferdam rapid connection structure according to claim 4, characterized in that, One end of the double-ended screw extends to the outside of the sealing cover and is fixedly mounted with a knob. The knob is provided with anti-slip threads. Two stop bars are fixedly mounted inside the sealing cover. The two stop bars pass through the two connecting strips and are slidably connected to the two connecting strips.

7. The modular steel sheet pile cofferdam rapid connection structure according to claim 4, characterized in that, The sealing sheet, sealing gasket, and rectangular sealing ring are all made of propylene diene monomer (PPD) rubber.

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