Double-row steel sheet pile cofferdam

Abstract

This invention discloses a double-row sheet pile cofferdam, relating to the field of sheet pile cofferdams. The outer wall of the cofferdam panels is fixed with a fixed plate by bolts. Two transverse plates and movable plates are arranged between the cofferdam panels, one on each side. The movable plates are slidably connected to the inner cavity of the transverse plates and extend to the outside of the transverse plates. A transmission mechanism and a limiting mechanism are provided on the transverse plates. The transmission mechanism provides a limit for the movable plates, and the limiting mechanism connects the transverse plates to the fixed plates. The transmission mechanism includes a transmission unit and a limiting unit. This invention, by setting up the transmission mechanism and limiting mechanism, enables rapid installation and fixing of the cofferdam panels and transverse plates. Furthermore, when the positions of the cofferdam panels on both sides shift, the length between the movable plates and transverse plates can be adjusted through the transmission mechanism to match the spacing between the two cofferdam panels, further improving work efficiency.

Description

Technical Field

[0001] This invention relates to the field of sheet pile cofferdams, specifically a double-row sheet pile cofferdam. Background Technology

[0002] The structural types of large cofferdams constructed on soft soil foundations generally fall into two categories: earth-rock cofferdams and sheet pile cofferdams. Constructing massive earth dam cofferdams presents significant challenges in terms of stability, foundation bearing capacity, and seepage prevention, and also involves a long construction period. Sheet pile cofferdams, on the other hand, are smaller in size and have a smaller impact area, and can employ double-row sheet pile structures or lattice sheet pile structures. Compared to lattice sheet piles, double-row sheet pile cofferdam structures offer advantages such as more reliable water stopping and easier recycling, and their cost is generally only 1 / 3 to 1 / 2 that of lattice sheet pile structures of the same scale. They can withstand greater deformation and are quick to construct and dismantle, often making them the preferred cofferdam form for soft soil foundations.

[0003] Due to construction limitations, cofferdam construction sites are often located near riverbeds with abundant mud and water. During the installation and fixing of the cofferdam, the cofferdam panels to be constructed need to be inserted into the mud in the riverbed. Then, the cofferdam panels on both sides are supported and fixed by transverse panels with a fixed length. When the cofferdam panels inserted into the mud shift within the mud, the transverse panels cannot effectively fix and limit the position of the cofferdam panels. Furthermore, when the cofferdam panels are fixed to the mud with bolts, the bolts are prone to falling into the mud and are difficult to find, requiring the replacement of new bolts, which is quite cumbersome. Therefore, this invention proposes a double-row steel sheet pile cofferdam. Summary of the Invention

[0004] The purpose of this invention is to provide a double-row steel sheet pile cofferdam in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a double-row steel sheet pile cofferdam, comprising cofferdam plates, wherein fixed plates are bolted to the outer wall of the cofferdam plates, and transverse plates and movable plates are respectively provided on the sides of the two fixed plates. The movable plates are slidably connected to the inner cavity of the transverse plates and extend to the outside of the transverse plates. A transmission mechanism and a limiting mechanism are provided on the transverse plates, wherein the transmission mechanism is used to limit the movable plates, and the limiting mechanism is used to connect the transverse plates and the fixed plates.

[0006] The transmission mechanism includes a transmission unit and a limiting unit;

[0007] The transmission unit is used to drive the movement of the limiting unit;

[0008] The limiting unit after the activity is used to limit the axial movement of the movable plate.

[0009] As a further embodiment of the present invention: the limiting unit includes a stop block, a movable plate, and a limiting block;

[0010] The abutment is fixed to one end of the movable plate and located inside the transverse plate;

[0011] The movable plate is vertically slidably installed in the inner cavity of the horizontal plate, and the movable plate is used to push multiple limiting blocks to move vertically;

[0012] The limiting block is fixed to the top of the movable plate, and the limiting block is used to limit the axial movement of the abutment block.

[0013] As a further embodiment of the present invention: the transmission unit includes an L-shaped slide, a stop rod, and a threaded rod;

[0014] The L-shaped slide is laterally installed on the outer wall of the transverse plate and extends into the interior of the transverse plate. The L-shaped slide is used to drive the abutment rod to move synchronously.

[0015] The abutment is fixed to the side of the L-shaped slide and extends into the interior of the transverse plate. The abutment is located below the movable plate and is used to push the movable plate upward.

[0016] The threaded rod is rotatably connected to the outer wall of the transverse plate and passes through the L-shaped slide block. The threaded rod is used to guide the lateral movement of the L-shaped slide block.

[0017] As a further embodiment of the present invention: the limiting mechanism includes a transmission rod, a fixed block, a rotating rod, a rotating wheel, a guide groove, and a rotating block;

[0018] The transmission rod is fixed to the top of one end of the movable plate and moves as the movable plate moves.

[0019] The fixing block is fixed inside the transverse plate, and the fixing block is used to provide rotational support for the rotating rod;

[0020] The rotating rod is rotatably connected inside the rotating rod and extends to both ends of the rotating rod. The rotating rod is used to drive the rotating block and the rotating wheel to rotate.

[0021] The rotating block is fixed to the bottom end of the rotating rod, and the rotating block is used to provide connecting force for the horizontal plate and the fixed plate;

[0022] The rotating wheel is fixed to the top of the rotating rod, and the rotating wheel is used to drive the rotating rod to rotate.

[0023] The guide groove is formed on the rotating wheel, and the end of the transmission rod extends into the inner cavity of the guide groove. When the transmission rod moves upward, it can drive the rotating wheel to rotate through the guide groove.

[0024] As a further embodiment of the present invention: the outer wall of the guide groove has a curved structure, and one end of the transmission rod is fixed with a circular protrusion extending into the inner cavity of the guide groove.

[0025] As a further aspect of the present invention: the thickness between the rotating block and the fixed block is matched with the thickness of the fixed plate, and the fixed plate is provided with a plurality of docking grooves for the rotating block to enter.

[0026] As a further embodiment of the present invention: the interior of the transverse plate is formed with a movable groove for the movement of the abutment rod and the L-shaped slide, and the outer walls of the L-shaped slide and the abutment rod are generally in the shape of a "C".

[0027] As a further embodiment of the present invention: the outer wall of the abutment that contacts the movable plate has an inclined structure, and the interior of the L-shaped slide is formed with a threaded groove that matches the outer wall of the threaded rod.

[0028] As a further embodiment of the present invention: the number of the movable plate, L-shaped slide, stop bar, and limiting mechanism is set to two, symmetrically distributed on the horizontal plate and the movable plate, for docking the horizontal plate and the movable plate with the two symmetrical fixed plates.

[0029] Compared with the prior art, the beneficial effects of the present invention are:

[0030] By setting up a transmission mechanism and a limiting mechanism, the cofferdam panels and the transverse panels can be quickly installed and fixed. When the positions of the cofferdam panels on both sides are offset, the length between the movable panels and the transverse panels can be adjusted through the transmission mechanism to match the spacing between the cofferdam panels on both sides, thereby further improving work efficiency. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of the present invention;

[0032] Figure 2 This is a cross-sectional view of the internal structure of the crossbar plate of the present invention.

[0033] Figure 3 This is a schematic diagram of the transmission mechanism of the present invention;

[0034] Figure 4 This is a schematic diagram of the transmission mechanism of the present invention;

[0035] Figure 5 This is a schematic diagram of the limiting mechanism of the present invention;

[0036] Figure 6 This is a schematic diagram of the internal structure of the movable plate of the present invention.

[0037] In the diagram: 1. Cofferdam plate; 2. Fixed plate; 3. Horizontal plate; 4. Movable plate; 5. Transmission mechanism; 501. Abutment block; 502. Movable plate; 503. Limiting block; 504. L-shaped slide; 505. Abutment rod; 506. Threaded rod; 6. Limiting mechanism; 601. Transmission rod; 602. Fixed block; 603. Rotating rod; 604. Rotating wheel; 605. Guide groove; 606. Rotating block. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] Please see Figures 1-6 In this embodiment of the invention, a double-row steel sheet pile cofferdam includes a cofferdam plate 1. The outer wall of the cofferdam plate 1 is fixed with a fixed plate 2 by bolts. The sides of the two fixed plates 2 are respectively provided with a transverse plate 3 and a movable plate 4. The movable plate 4 is slidably connected to the inner cavity of the transverse plate 3 and extends to the outside of the transverse plate 3. A transmission mechanism 5 and a limiting mechanism 6 are provided on the transverse plate 3. The transmission mechanism 5 is used to limit the movable plate 4, and the limiting mechanism 6 is used to connect the transverse plate 3 and the fixed plate 2.

[0040] The transmission mechanism 5 includes a transmission unit and a limiting unit;

[0041] The transmission unit is used to drive the movement of the limit unit;

[0042] The limiting unit after the movement is used to limit the axial movement of the movable plate 4;

[0043] The limiting unit includes a stop block 501, a movable plate 502, and a limiting block 503;

[0044] Block 501 is fixed to one end of the movable plate 4 and located inside the transverse plate 3;

[0045] The movable plate 502 is vertically slidably installed in the inner cavity of the horizontal plate 3. The movable plate 502 is used to push multiple limit blocks 503 to move vertically.

[0046] The limiting block 503 is fixed to the top of the movable plate 502. The limiting block 503 is used to limit the axial movement of the abutment block 501.

[0047] The transmission unit includes an L-shaped slide 504, a stop rod 505, and a threaded rod 506;

[0048] The L-shaped slide 504 is installed laterally on the outer wall of the transverse plate 3 and extends into the interior of the transverse plate 3. The L-shaped slide 504 is used to drive the abutment 505 to move synchronously.

[0049] The abutment 505 is fixed to the side of the L-shaped slide 504 and extends into the interior of the transverse plate 3. The abutment 505 is located below the movable plate 502 and is used to push the movable plate 502 upward.

[0050] The threaded rod 506 is rotatably connected to the outer wall of the transverse plate 3 and passes through the L-shaped slide 504. The threaded rod 506 is used to guide the lateral movement of the L-shaped slide 504.

[0051] The limiting mechanism 6 includes a transmission rod 601, a fixed block 602, a rotating rod 603, a rotating wheel 604, a guide groove 605, and a rotating block 606;

[0052] The transmission rod 601 is fixed to the top of one end of the movable plate 502 and moves as the movable plate 502 moves;

[0053] The fixing block 602 is fixed inside the transverse plate 3, and the fixing block 602 is used to provide rotational support for the rotating rod 603;

[0054] Rotating rod 603 is rotatably connected inside rotating rod 603 and extends through the upper and lower ends of rotating rod 603. Rotating rod 603 is used to drive rotating block 606 and rotating wheel 604 to rotate.

[0055] The rotating block 606 is fixed to the bottom end of the rotating rod 603. The rotating block 606 is used to provide a connecting force for the horizontal plate 3 and the fixed plate 2.

[0056] The rotating wheel 604 is fixed to the top of the rotating rod 603, and the rotating wheel 604 is used to drive the rotating rod 603 to rotate.

[0057] The guide groove 605 is formed on the rotating wheel 604, and the end of the transmission rod 601 extends into the inner cavity of the guide groove 605. When the transmission rod 601 moves upward, it can drive the rotating wheel 604 to rotate through the guide groove 605.

[0058] In this embodiment: the structure allows the two ends of the transverse plate 3 and the movable plate 4 to be placed on the fixed plate 2, so that the rotating block 606 at the bottom of the transverse plate 3 and the movable plate 4 passes through the docking groove on the fixed plate 2. By applying tension to the movable plate 4, the length of the transverse plate 3 and the movable plate 4 can be extended to adapt to the gap between the two fixed plates 2. At this time, the threaded rod 506 can be given rotational force. Rotating the threaded rod 506 pushes the L-shaped slide 504 to move laterally along the threaded groove, so that the L-shaped slide 504 drives the abutment 505 into the interior of the transverse plate 3. At this time, the inclined surface of the outer wall of the abutment 505 will contact the outer wall at the bottom of the movable plate 502, giving the movable plate 502 an upward thrust, thereby driving multiple limiting blocks 503 to move upward, so that the abutment 501 located between two of the limiting blocks 503 is limited by the limiting blocks 503, thus limiting the axial movement of the abutment 501.

[0059] As the movable plate 502 moves upward, the transmission rod 601 fixed at one end of the movable plate 502 will also move along with the movable plate 502. The circular protrusion connected to the end of the transmission rod 601 will exert a squeezing force on the guide groove 605, causing the rotating wheel 604 to rotate. The rotating wheel 604 will synchronously drive the rotating rod 603 to rotate, thereby driving the rotating block 606 fixed at the bottom of the rotating rod 603 to rotate 90 degrees, so that the rotating block 606 and the docking groove opened on the fixed plate 2 form a cross-shaped structure, completing the connection between the transverse plate 3 and the fixed plate 2. The same applies to the fixed plate 2 and the movable plate 4, achieving rapid completion of the fixing and limiting of the transverse plate 3, and can adapt to the spacing between the cofferdam plates 1, further improving work efficiency.

[0060] Please refer to this carefully. Figures 1-6 The outer wall of the guide groove 605 has a curved structure. One end of the transmission rod 601 is fixed with a circular protrusion extending into the inner cavity of the guide groove 605. The thickness between the rotating block 606 and the fixed block 602 matches the thickness of the fixed plate 2. The fixed plate 2 has multiple docking grooves for the rotating block 606 to enter.

[0061] In this embodiment: This structure allows the rotating block 606 and the docking groove to form a cross shape, and the rotating block 606 can limit the fixed plate 2 and the transverse plate 3 to complete the connection of the fixed plate 2 and the transverse plate 3.

[0062] Please refer to this carefully. Figures 1-6 The interior of the transverse plate 3 is formed with a movable groove for the movement of the abutment 505 and the L-shaped slide 504. The outer walls of the L-shaped slide 504 and the abutment 505 are generally in a "C" shape. The outer wall of the abutment 505 that contacts the movable plate 502 is in a sloping structure. The interior of the L-shaped slide 504 is formed with a threaded groove that matches the outer wall of the threaded rod 506.

[0063] In this embodiment: This structure allows the L-shaped slide block 504 and the abutment rod 505 to move laterally by rotating the threaded rod 506, so that the abutment rod 505 enters the interior of the transverse plate 3, providing thrust for the upward movement of the movable plate 502.

[0064] Please refer to this carefully. Figures 1-6 There are two movable plates 502, L-shaped slides 504, stop bars 505, and limiting mechanisms 6, which are symmetrically distributed on the transverse plates 3 and movable plates 4, and are used to connect the transverse plates 3 and movable plates 4 with the two symmetrical fixed plates 2.

[0065] In this embodiment, this structure can provide a limit to the connection between the movable plate 4 and the fixed plate 2, further improving the connection efficiency between the fixed plate 2 and the transverse plate 3 and the movable plate 4.

[0066] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A double-row steel sheet pile cofferdam, comprising cofferdam plates (1), wherein a fixed plate (2) is bolted to the outer wall of the cofferdam plate (1), and a transverse plate (3) and a movable plate (4) are respectively provided on the sides of the two fixed plates (2), wherein the movable plate (4) is slidably connected to the inner cavity of the transverse plate (3) and extends to the outside of the transverse plate (3), characterized in that, A transmission mechanism (5) and a limiting mechanism (6) are provided on the transverse plate (3). The transmission mechanism (5) is used to provide a limit for the movable plate (4), and the limiting mechanism (6) is used to connect the transverse plate (3) and the fixed plate (2). The transmission mechanism (5) includes a transmission unit and a limiting unit; the limiting unit includes a stop block (501), a movable plate (502), and a limiting block (503); the stop block (501) is fixed at one end of the movable plate (4) and located inside the transverse plate (3); the movable plate (502) is vertically slidably installed in the inner cavity of the transverse plate (3), and the movable plate (502) is used to push multiple limiting blocks (503) to move vertically; the limiting block (503) is fixed at the top of the movable plate (502), and the limiting block (503) is used to limit the axial movement of the stop block (501); The transmission unit is used to drive the movement of the limiting unit; The limiting unit after the activity is used to limit the axial movement of the movable plate (4); The limiting mechanism (6) includes a transmission rod (601), a fixed block (602), a rotating rod (603), a rotating wheel (604), a guide groove (605), and a rotating block (606); The transmission rod (601) is fixed to the top of one end of the movable plate (502) and moves as the movable plate (502) moves; The fixing block (602) is fixed inside the transverse plate (3), and the fixing block (602) is used to provide rotational support for the rotating rod (603); The rotating rod (603) is rotatably connected inside the rotating rod (603) and extends through the upper and lower ends of the rotating rod (603). The rotating rod (603) is used to drive the rotating block (606) and the wheel (604) to rotate. The rotating block (606) is fixed to the bottom end of the rotating rod (603), and the rotating block (606) is used to provide a connecting force for the transverse plate (3) and the fixed plate (2); The rotating wheel (604) is fixed to the top of the rotating rod (603), and the rotating wheel (604) is used to drive the rotating rod (603) to rotate; The guide groove (605) is formed on the rotating wheel (604), and the end of the transmission rod (601) extends into the inner cavity of the guide groove (605). When the transmission rod (601) moves upward, it can drive the rotating wheel (604) to rotate through the guide groove (605).

2. The double-row steel sheet pile cofferdam according to claim 1, characterized in that, The transmission unit includes an L-shaped slide (504), a stop rod (505), and a threaded rod (506); The L-shaped slide (504) is laterally installed on the outer wall of the transverse plate (3) and extends into the interior of the transverse plate (3). The L-shaped slide (504) is used to drive the abutment (505) to move synchronously. The abutment (505) is fixed to the side of the L-shaped slide (504) and extends into the interior of the transverse plate (3). The abutment (505) is located below the movable plate (502) and is used to push the movable plate (502) upward. The threaded rod (506) is rotatably connected to the outer wall of the transverse plate (3) and passes through the L-shaped slide (504). The threaded rod (506) is used to guide the lateral movement of the L-shaped slide (504).

3. A double-row steel sheet pile cofferdam according to claim 1, characterized in that, The outer wall of the guide groove (605) has a curved structure, and one end of the transmission rod (601) is fixed with a circular protrusion extending into the inner cavity of the guide groove (605).

4. A double-row steel sheet pile cofferdam according to claim 1, characterized in that, The thickness between the rotating block (606) and the fixed block (602) matches the thickness of the fixed plate (2), and the fixed plate (2) has multiple docking grooves for the rotating block (606) to enter.

5. A double-row steel sheet pile cofferdam according to claim 2, characterized in that, The interior of the transverse plate (3) is formed with movable grooves for the movement of the abutment rod (505) and the L-shaped slide (504), and the outer walls of the L-shaped slide (504) and the abutment rod (505) are in a "C" shape.

6. A double-row steel sheet pile cofferdam according to claim 2, characterized in that, The outer wall of the abutment (505) that contacts the movable plate (502) has a beveled structure, and the interior of the L-shaped slide (504) is formed with a threaded groove that matches the outer wall of the threaded rod (506).

7. A double-row steel sheet pile cofferdam according to claim 2, characterized in that, The number of the movable plate (502), L-shaped slide (504), stop bar (505), and limiting mechanism (6) is set to two, symmetrically distributed on the transverse plate (3) and the movable plate (4), and used to connect the transverse plate (3), the movable plate (4) with the two symmetrical fixed plates (2).

Images