Deep and thick sludge cofferdam construction protection structure

Abstract

The utility model discloses a deep sludge cofferdam construction protection structure which comprises a triangular supporting frame, a pair of limiting sliding grooves are formed in each of three sides of the inner wall of the triangular supporting frame, a threaded adjusting rod is rotationally connected into the triangular supporting frame, and a waterproof motor is installed at the top end of the threaded adjusting rod and located at the top of the triangular supporting frame. The cofferdam construction protection structure comprises a triangular supporting frame, an angular positioning frame is slidably connected to the interior of the triangular supporting frame, the two sides of the triangular supporting frame are each fixedly connected with a first T-shaped assembly block, the two sides of the triangular supporting frame are each connected with a first baffle in an inserted mode, and a plurality of first positioning nails are fixedly connected to the bottoms of the baffles. By means of the design, the stability of assembly and fixation of the cofferdam in a construction area with thick sludge can be improved, and the connection strength between the baffles is enhanced.

Description

A protective structure for the construction of deep silt cofferdams Technical Field

[0001] This utility model relates to the field of cofferdam construction technology, specifically a protective structure for cofferdam construction in deep silt. Background Technology

[0002] A cofferdam is a temporary retaining structure built in water conservancy projects to construct permanent water facilities. A typical cofferdam consists of a front steel plate and a rear steel plate, which are connected and fixed together by bolts and sleeves. Both the front and rear steel plates are fixed to a base plate. In construction areas with deep silt, the silt at the cofferdam base is prone to slippage under the gravity of nearby structures, causing the base to heave and further leading to cofferdam instability. Therefore, a protective structure is needed to enhance the structural stability of the cofferdam.

[0003] A search revealed Chinese Patent Publication No. CN210887255U, which discloses a reinforced structure for the protection of a cofferdam in hydraulic construction. The structure includes a base plate with mounting holes. A fixing core is placed within these mounting holes. The top of the fixing core is a circular plate with multiple screw holes at equal angles. These screw holes are connected to the base plate via bolts. A locking screw is rotatably positioned in the center of the fixing core, penetrating it. The bottom end of the locking screw is located below the base plate. A sliding sleeve is fitted onto the locking screw and screwed to it. The sliding sleeve is located below the base plate. Four hinge grooves at equal angles are formed on the outer circular surface of the sliding sleeve. A spiral propulsion structure is used to push the locking teeth into the borehole wall for fixing to the ground. Disassembly is simple, requiring only a reverse rotation, making this a convenient reinforced structure for cofferdam protection. This facilitates cofferdam disassembly, improves construction efficiency, and reduces the labor intensity of workers.

[0004] The aforementioned reinforced structure is not convenient for assembly and fixation in construction areas with thick silt in water conservancy projects, thus affecting the stability of the cofferdam structure. Therefore, it is necessary to design a deep silt cofferdam construction protection structure to improve the above problems. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model designs a protective structure for the construction of deep silt cofferdams. This protective structure aims to solve the technical problem that existing technologies make it inconvenient to assemble and fix the cofferdam in construction areas with thick silt in water conservancy projects, thus affecting the stability of the cofferdam structure.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A protective structure for the construction of a deep silt cofferdam includes a triangular support frame. A pair of limiting grooves are provided on three sides of the inner wall of the triangular support frame. A threaded adjusting rod is rotatably connected inside the triangular support frame. A waterproof motor is installed at the top of the threaded adjusting rod, located at the top of the triangular support frame. An angular positioning frame is slidably connected inside the triangular support frame. A set of T-shaped assembly blocks are fixedly connected to both sides of the triangular support frame. A set of baffles is inserted into both sides of the triangular support frame. Several sets of positioning nails are fixedly connected to the bottom of the baffles.

[0008] Preferably, the interior of the T-shaped assembly block is provided with a pair of mounting holes.

[0009] Preferably, a support plate is fixedly connected to the bottom of the triangular support frame, and the support plate has a movable groove at a position corresponding to the triangular support frame.

[0010] Preferably, a limiting slider is fixedly connected to the outer side of the angular positioning frame and at a position corresponding to the limiting slide groove, and the angular positioning frame is slidably connected to the limiting slide groove through the limiting slider.

[0011] Preferably, a threaded adjustment hole is provided at the top of the angular positioning frame and at a position corresponding to the threaded adjustment rod, and the angular positioning frame is threadedly connected to the threaded adjustment rod through the threaded adjustment hole.

[0012] Preferably, a set of grid frames is fixedly connected to both sides of the bottom of the angular positioning frame, and a positioning nail is fixedly connected to the bottom of the grid frame.

[0013] Preferably, a T-shaped insertion groove is provided on the side of the baffle corresponding to the T-shaped assembly block one, and the baffle is inserted and connected to the T-shaped assembly block one through the T-shaped insertion groove. A second mounting hole is provided on the baffle at the position corresponding to the first and second mounting holes one. A second T-shaped assembly block is fixedly connected to the side of the baffle away from the T-shaped insertion groove. A third mounting hole is installed on the second T-shaped assembly block at the position corresponding to the second mounting hole.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The triangular support frame raises the waterproof motor to drive the threaded adjustment rod to rotate, so that the triangular positioning frame is lowered through the threaded adjustment hole and the threaded adjustment rod. The triangular positioning frame pushes the grid frame and the positioning nail to embed deep into the silt layer. Through the assembly and docking of multiple sets of triangular support frames, support and positioning are provided for the corners of the cofferdam, enhancing the support stability of the cofferdam foundation.

[0016] 2. The baffle is connected to the T-shaped assembly block one through a T-shaped insertion slot. The baffle is spliced ​​and assembled with the triangular support frame by using bolts embedded in the first and second mounting holes. The baffles are connected to each other through a T-shaped insertion slot to the second T-shaped assembly block. The baffles are spliced ​​and assembled with bolts embedded in the second and third mounting holes, thus expanding the protection range of the cofferdam construction. The positioning nail one at the bottom of the baffle is embedded in the silt layer for support and positioning. Attached Figure Description

[0017] Figure 1 is a three-dimensional schematic diagram of the overall protective structure for the construction of a cofferdam for deep silt.

[0018] Figure 2 is a schematic plan view of the protective structure for the construction of a deep silt cofferdam.

[0019] Figure 3 is a schematic diagram of the triangular support frame and the angular positioning frame structure;

[0020] Figure 4 is a schematic diagram of the angled positioning frame structure;

[0021] Figure 5 is a schematic diagram of the baffle structure;

[0022] Figure 6 is a schematic diagram of the baffle structure.

[0023] In the diagram: 1. Triangular support frame; 101. Limiting slide groove; 102. Threaded adjusting rod; 1021. Waterproof motor; 103. T-shaped assembly block one; 1031. Mounting hole one; 104. Support plate; 1041. Movable groove; 2. Angle positioning frame; 201. Limiting slider; 202. Threaded adjusting hole; 203. Grille frame; 2031. Positioning nail two; 3. Baffle; 301. Positioning nail one; 302. T-shaped insertion groove; 3021. Mounting hole two; 303. T-shaped assembly block two; 3031. Mounting hole three. 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. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Example:

[0026] This utility model provides a protective structure for the construction of a cofferdam in deep silt. This cofferdam construction protective structure aims to solve the technical problem that it is not convenient to assemble and fix the structure in the construction area with thick silt in water conservancy projects under the existing technology, which affects the stability of the cofferdam structure.

[0027] Please refer to Figures 1-6. This embodiment provides a protective structure for the construction of a deep silt cofferdam, including a triangular support frame 1. A pair of limiting grooves 101 are provided on three sides of the inner wall of the triangular support frame 1. A threaded adjusting rod 102 is rotatably connected inside the triangular support frame 1. A waterproof motor 1021 is installed at the top of the threaded adjusting rod 102 and at the top of the triangular support frame 1. A set of T-shaped assembly blocks 103 are fixedly connected to both sides of the triangular support frame 1. A pair of mounting holes 1031 are provided inside the T-shaped assembly blocks 103. A support plate 104 is fixedly connected to the bottom of the triangular support frame 1. The triangular support frame 1 is supported on the silt layer by the support plate 104. An movable groove 1041 is provided at the position corresponding to the position of the support plate 104 and the triangular support frame 1.

[0028] In this embodiment, please refer to Figures 1, 2, 3, and 4. An angled positioning frame 2 is slidably connected inside the triangular support frame 1. A limiting slider 201 is fixedly connected to the outer side of the angled positioning frame 2 at a position corresponding to the limiting slide groove 101. The angled positioning frame 2 is slidably connected to the limiting slide groove 101 via the limiting slider 201, improving the stability of the height adjustment of the angled positioning frame 2. A threaded adjustment hole 202 is provided at the top of the angled positioning frame 2 at a position corresponding to the threaded adjustment rod 102. A waterproof motor 1021 drives the threaded adjustment rod. Rotating 102 causes the angled positioning frame 2 to be threadedly connected to the threaded adjusting rod 102 through the threaded adjusting hole 202, and descends according to the depth of the silt layer. A set of grid frames 203 are fixedly connected to both sides of the bottom of the angled positioning frame 2. The bottom of the grid frame 203 is fixedly connected to the second positioning nail 2031. The angled positioning frame 2 pushes the grid frame 203 and the second positioning nail 2031 to embed into the deep silt layer. Through the assembly and docking of multiple sets of triangular support frames 1 using baffles 3, support and positioning are provided for the corners of the cofferdam, enhancing the support stability of the cofferdam foundation.

[0029] In this embodiment, please refer to Figures 1, 2, 5, and 6. A set of baffles 3 are inserted into both sides of the triangular support frame 1. Several sets of positioning pins 301 are fixedly connected to the bottom of the baffles 3. The positioning pins 301 at the bottom of the baffles 3 are embedded in the silt layer for support and positioning. A T-shaped insertion groove 302 is provided on the side of the baffle 3 corresponding to the T-shaped assembly block 103. The baffle 3 is inserted into the T-shaped assembly block 103 through the T-shaped insertion groove 302. Bolts are inserted into the mounting holes 1031 and 3021 to assemble the baffle 3 with the triangular support frame 1. For assembly, mounting holes 3021 are provided at the positions corresponding to mounting holes 1031 and 2031. A T-shaped assembly block 303 is fixedly connected to the side of the baffle 3 away from the T-shaped insertion groove 302. Mounting holes 3031 are installed at the positions corresponding to mounting holes 3021 and 2033 of the T-shaped assembly block 303. The baffles 3 are connected to each other by inserting the T-shaped insertion groove 302 and the T-shaped assembly block 303. The baffles 3 are spliced ​​and assembled by inserting bolts into mounting holes 3021 and 3031, thereby expanding the protection range of the cofferdam construction.

[0030] In addition, it should be noted that the waterproof motor 1021 is existing technology, and its internal working principle and operation process will not be described in detail here.

[0031] The working process of this utility model is as follows: First, the triangular support frame 1 is supported on the silt layer by the support plate 104. The waterproof motor 1021 drives the threaded adjusting rod 102 to rotate, so that the angled positioning frame 2 is threadedly connected to the threaded adjusting rod 102 through the threaded adjusting hole 202. It descends according to the depth of the silt layer. The angled positioning frame 2 pushes the grid frame 203 and the positioning nail 2031 to be embedded deep into the silt layer. By assembling and connecting multiple sets of triangular support frames 1 with baffles 3, support and positioning are provided for the corners of the cofferdam, and the support of the cofferdam foundation is enhanced. For stability, the baffle 3 is connected to the T-shaped assembly block 103 by inserting the T-shaped insertion slot 302. The baffle 3 is assembled with the triangular support frame 1 by inserting bolts into the mounting holes 1031 and 3021. The baffles 3 are connected to each other by inserting the T-shaped insertion slot 302 and the T-shaped assembly block 203. The baffles 3 are assembled with bolts into the mounting holes 2021 and 3031, which expands the protection range of the cofferdam construction. The positioning nail 301 at the bottom of the baffle 3 is embedded in the silt layer for support and positioning.

[0032] The entire operation process is simple and convenient. Compared with the existing cofferdam construction protection structure, this utility model can improve the stability of the cofferdam assembly and fixation in construction areas with thick silt and enhance the connection strength between the baffles through design.

[0033] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A protective structure for the construction of a deep silt cofferdam, comprising a triangular support frame (1), characterized in that: The triangular support frame (1) has a pair of limiting grooves (101) on three sides of its inner wall. The triangular support frame (1) is rotatably connected to a threaded adjusting rod (102). A waterproof motor (1021) is installed at the top of the threaded adjusting rod (102) and at the top of the triangular support frame (1). The triangular support frame (1) is slidably connected to an angled positioning frame (2). A set of T-shaped assembly blocks (103) are fixedly connected to both sides of the triangular support frame (1). A set of baffles (3) are inserted into both sides of the triangular support frame (1). Several sets of positioning nails (301) are fixedly connected to the bottom of the baffles (3).

2. The protective structure for the construction of a deep silt cofferdam according to claim 1, characterized in that: The T-shaped assembly block (103) has a pair of mounting holes (1031) inside.

3. The protective structure for the construction of a deep silt cofferdam according to claim 1, characterized in that: The bottom of the triangular support frame (1) is fixedly connected to a support plate (104), and the support plate (104) has a movable groove (1041) at a position corresponding to the triangular support frame (1).

4. The protective structure for the construction of a deep silt cofferdam according to claim 1, characterized in that: A limiting slider (201) is fixedly connected to the outer side of the angular positioning frame (2) and at a position corresponding to the limiting slide groove (101). The angular positioning frame (2) is slidably connected to the limiting slide groove (101) through the limiting slider (201).

5. The protective structure for the construction of a deep silt cofferdam according to claim 1, characterized in that: The top of the angular positioning frame (2) and the position corresponding to the threaded adjusting rod (102) are provided with a threaded adjusting hole (202), and the angular positioning frame (2) is threadedly connected to the threaded adjusting rod (102) through the threaded adjusting hole (202).

6. The protective structure for the construction of a deep silt cofferdam according to claim 1, characterized in that: A set of grid frames (203) are fixedly connected to both sides of the bottom of the angled positioning frame (2), and a second positioning nail (2031) is fixedly connected to the bottom of the grid frame (203).

7. The protective structure for the construction of a deep silt cofferdam according to claim 2, characterized in that: The baffle (3) has a T-shaped insertion groove (302) on the side corresponding to the T-shaped assembly block one (103). The baffle (3) is inserted and connected to the T-shaped assembly block one (103) through the T-shaped insertion groove (302). The baffle (3) has a second mounting hole (3021) at the position corresponding to the first mounting hole (1031). The side of the baffle (3) away from the T-shaped insertion groove (302) is fixedly connected to the second T-shaped assembly block two (303). The second T-shaped assembly block two (303) is installed at the position corresponding to the second mounting hole (3021). The third mounting hole (3031) is installed at the position corresponding to the second mounting hole (3021).

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