Assembly type cofferdam internal supporting device and assembly type cofferdam

Abstract

The utility model discloses an assembly type cofferdam internal supporting device and an assembly type cofferdam, and relates to the technical field of bridge construction, the assembly type cofferdam internal supporting device comprises a rectangular supporting beam assembly used for being connected with the inner side wall of a cofferdam plate; the four sets of inclined strut assemblies are arranged on the inner sides of the four corners of the rectangular supporting beam assembly respectively, each set of inclined strut assembly comprises at least one inclined strut piece, and each inclined strut piece comprises a first fixing part and a second fixing part which are connected to the two adjacent edges of the rectangular supporting beam assembly respectively; the connecting part comprises a fixed joint and a sliding joint, the fixed joint is connected with the first fixed part, one end of the sliding joint is arranged on the fixed joint in a sleeving mode, can slide relative to the fixed joint and is used for adjusting the length of the inclined strut piece, and the other end of the sliding joint is connected with the second fixed part; and the limiting piece is used for limiting the relative position of the fixed joint and the sliding joint. The problems that the construction speed of constructors is low, the mounting angle of a supporting device in the cofferdam cannot be flexibly adjusted, and the device is difficult to dismantle are solved.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction technology, specifically to an internal support device for a prefabricated cofferdam and a prefabricated cofferdam. Background Technology

[0002] Cofferdams, as temporary protective structures, are frequently used in the construction of water conservancy projects. Their main function is to prevent mud and water from entering the construction site. During use, different types of cofferdams must be selected based on varying geological and hydrological conditions to achieve optimal waterproofing and mud-proofing effects.

[0003] In existing technologies, welding is generally used for internal support during the construction of cofferdams. However, the size of the diagonal bracing is difficult to adjust, resulting in slow construction speed, inflexible installation angle of the internal support devices during construction, and difficulty in dismantling the internal support devices. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this utility model is to provide a prefabricated cofferdam internal support device and a prefabricated cofferdam, which can solve the problems of the existing technology, which generally uses welding for internal support during the cofferdam construction process, and the difficulty in adjusting the size of the diagonal braces, resulting in slow construction speed, inflexible adjustment of the installation angle of the internal support device during construction, and difficulty in dismantling the internal support device.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] On the one hand, this solution provides an internal support device for a prefabricated cofferdam, including:

[0007] A rectangular support beam assembly for connecting to the inner wall of the cofferdam slab;

[0008] Four sets of diagonal bracing assemblies are respectively disposed on the inner sides of the four corners of the rectangular support beam assembly. Each set of diagonal bracing assemblies includes at least one diagonal bracing member. Each diagonal bracing member includes a first fixing part, a second fixing part, and a connecting part. The first fixing part and the second fixing part are respectively connected to two adjacent sides of the rectangular support beam assembly. The connecting part includes a fixed joint and a sliding joint. The fixed joint is connected to the first fixing part. One end of the sliding joint is sleeved on the fixed joint and can slide relative to the fixed joint to adjust the length of the diagonal bracing member. The other end of the sliding joint is connected to the second fixing part.

[0009] A limiting element is used to define the relative positions of the fixed section and the sliding section.

[0010] In some alternative solutions, the fixed section includes at least one connecting plate, one end of which is connected to the first fixed part. The sliding section includes the same number of sliding plates as the connecting plates. Each sliding plate includes two sliding plates respectively disposed on both sides of the connecting plate. The sliding plates are connected to the second fixed part. The connecting plate can slide along the length direction of the diagonal brace between the two sliding plates. The limiting member is used to limit the relative position between the connecting plate and the sliding plate.

[0011] In some alternative solutions, the connecting plate is provided with a pin hole, and the sliding plate is provided with an elongated hole along the length direction of the diagonal brace; the limiting member includes a pin and a limiting block, the pin passes through the pin hole and the elongated hole, and is used to limit the vertical position of the connecting plate and the sliding plate, the limiting block is disposed between the two sliding plates, and the limiting block is located between the connecting plate and the second fixing part, and is used to limit the position of the connecting plate and the sliding plate along the length direction of the diagonal brace.

[0012] In some alternative embodiments, the rectangular support beam assembly includes:

[0013] Four right-angle connectors are respectively set at the four corners of the rectangular support beam assembly;

[0014] The four supporting beams are connected at both ends to two right-angle connectors on the same side.

[0015] In some alternative embodiments, at least one reinforcing beam is provided between opposite sides of the rectangular support beam assembly.

[0016] In some alternative embodiments, the reinforcing beam includes:

[0017] Two fasteners are respectively connected to the opposite sides of the rectangular support beam assembly;

[0018] The main body of the reinforced beam is connected to two fasteners at each end.

[0019] In some alternative solutions, the right-angle connector and the main body of the support beam are connected by assembly holes and flange bolts; the fastener and the main body of the reinforcing beam are connected by assembly holes and flange bolts.

[0020] In some alternative solutions, the first and second fixing parts are provided with assembly holes at the connection points with the rectangular support beam assembly and the connecting part, and are connected to the rectangular support beam assembly and the connecting part by flange bolts.

[0021] In some alternative designs, four corbels are also included, each positioned at one of the four corners inside the cofferdam slab, with the rectangular support beam assembly connected to the top of the four corbels.

[0022] On the other hand, this solution provides a prefabricated cofferdam, which includes the prefabricated cofferdam internal support device as described in any of the above claims, the prefabricated cofferdam internal support device being used to provide support for the prefabricated cofferdam.

[0023] Compared with existing technologies, the advantages of this utility model are as follows: In this solution, the rectangular support beam assembly is connected to the inner wall of the cofferdam plate, providing support for the cofferdam plate. Four sets of diagonal bracing assemblies are set on the inner side of the four corners of the rectangular support beam assembly to enhance the support strength of the rectangular support beam assembly. By adjusting the sliding joint sleeved on the fixed section, the length of the diagonal bracing can be adjusted, facilitating flexible adjustment of the installation position and angle during the assembly of the internal support device. This solves the problems in existing technologies where internal support is generally provided by welding during cofferdam construction, and where adjusting the size of the diagonal bracing is difficult, resulting in slow construction speed, inflexible adjustment of the installation angle of the internal support device during construction, and difficulty in dismantling the internal support device. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a top view of the internal support device of the prefabricated cofferdam in an embodiment of this utility model;

[0026] Figure 2 This is a schematic diagram of the diagonal brace in an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the sliding plate in an embodiment of the present invention;

[0028] Figure 4 This is a schematic diagram of the connecting plate in an embodiment of the present utility model;

[0029] Figure 5 This is a schematic elevation projection of the internal support device of the prefabricated cofferdam in an embodiment of this utility model;

[0030] Figure 6 This is a schematic diagram of the reinforcing beam in an embodiment of the present invention;

[0031] In the diagram: 1. Cofferdam plate; 2. Rectangular support beam assembly; 21. Right-angle connector; 22. Support beam body; 3. Diagonal brace; 311. First fixing part; 312. Second fixing part; 32. Connecting part; 321. Fixing section; 322. Sliding section; 323. Connecting plate; 324. Sliding plate; 325. Pin hole; 326. Oblong hole; 33. Limiting block; 4. Reinforcing beam; 41. Fixing component; 42. Reinforcing beam body; 5. Corbel. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0033] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0034] like Figure 1 and Figure 2 As shown, on one hand, this utility model provides an internal support device for a prefabricated cofferdam, comprising:

[0035] Rectangular support beam assembly 2, which is used to connect to the inner wall of cofferdam plate 1;

[0036] Four sets of diagonal bracing components are respectively arranged on the inner sides of the four corners of the rectangular support beam assembly 2. Each set of diagonal bracing components includes at least one diagonal bracing member 3. Each diagonal bracing member 3 includes a first fixing part 311, a second fixing part 312, and a connecting part 32. The first fixing part 311 and the second fixing part 312 are respectively connected to two adjacent sides of the rectangular support beam assembly 2. The connecting part 32 includes a fixed section 321 and a sliding section 322. The fixed section 321 is connected to the first fixing part 311. One end of the sliding section 322 is sleeved on the fixed section 321 and can slide relative to the fixed section 321 to adjust the length of the diagonal bracing member 3. The other end of the sliding section 322 is connected to the second fixing part 312.

[0037] A limiting member is used to limit the relative position of the fixed section 321 and the sliding section 322.

[0038] In this embodiment, the rectangular support beam assembly 2 is connected to the inner wall of the cofferdam plate 1, providing support for the cofferdam plate 1. Four sets of diagonal bracing assemblies are installed on the inner sides of the four corners of the rectangular support beam assembly 2 to enhance its support strength. By adjusting the sliding joint 322 sleeved on the fixed joint 321, the length of the diagonal bracing member 3 can be adjusted, facilitating flexible adjustment of the installation position and angle during the assembly of the internal support device. This solves the problems in the prior art where internal support is generally provided by welding during cofferdam construction, and where adjusting the size of the diagonal bracing is difficult, resulting in slow construction speed, inflexible adjustment of the installation angle of the internal support device during construction, and difficulty in dismantling the internal support device.

[0039] like Figure 2 As shown, in some optional embodiments, the fixed section 321 includes at least one connecting plate 323, one end of which is connected to the first fixed part 311. The sliding section 322 includes the same number of sliding plates as the connecting plates 323. Each sliding plate includes two sliding plates 324 respectively disposed on both sides of the connecting plate 323. The sliding plates 324 are connected to the second fixed part 312. The connecting plate 323 can slide along the length direction of the diagonal brace 3 between the two sliding plates 324. The limiting member is used to limit the relative position between the connecting plate 323 and the sliding plate 324.

[0040] In this embodiment, the connecting plate 323 can slide along the length of the diagonal brace 3 on the two sliding plates 324, and the relative position between the connecting plate 323 and the sliding plates 324 is limited by the limiting member. This allows for flexible adjustment of the length of the diagonal brace 3, facilitating the construction of the internal support device. In this embodiment, two connecting plates 323 are spaced apart on the fixed section 321.

[0041] like Figure 3 and Figure 4 As shown, in some optional embodiments, the connecting plate 323 is provided with a pin hole 325, and the sliding plate 324 is provided with an elongated hole 326 along the length direction of the diagonal brace 3; the limiting member includes a pin and a limiting block 33, the pin passes through the pin hole 325 and the elongated hole 326, and is used to limit the vertical position of the connecting plate 323 and the sliding plate 324, the limiting block 33 is disposed between the two sliding plates 324, and the limiting block 33 is located between the connecting plate 323 and the second fixing part 312, and is used to limit the position of the connecting plate 323 and the sliding plate 324 in the length direction of the diagonal brace 3.

[0042] In this embodiment, a pin passes through a pin hole 325 on the connecting plate 323 and an elongated hole 326 on the sliding plate 324 along the length of the diagonal brace 3, thus defining the vertical positions of the connecting plate 323 and the sliding plate 324. A limiting block 33, positioned between the two sliding plates 324 and between the connecting plate 323 and the second fixing part 312, further defines the positions of the connecting plate 323 and the sliding plate 324 along the length of the diagonal brace 3. At least one elongated hole 326 is provided, and the position of the pin hole 325 corresponds to the elongated hole 326.

[0043] like Figure 1 and Figure 5 As shown, in some optional embodiments, the rectangular support beam assembly 2 includes:

[0044] Four right-angle connectors 21 are respectively installed at the four corners of the rectangular support beam assembly 2;

[0045] Four supporting beam bodies 22, each of which is connected at both ends to two right-angle connectors 21 on the same side.

[0046] In this embodiment, the rectangular support beam assembly 2 includes a right-angle connector 21 and a support beam body 22. Different sizes of support beam bodies 22 can be selected to match the cofferdam plate 1 according to the size of the cofferdam plate 1.

[0047] like Figure 1 and Figure 6 As shown, in some optional embodiments, at least one reinforcing beam 4 is provided between opposite sides of the rectangular support beam assembly 2.

[0048] In this embodiment, the support strength of the cofferdam inner bracing device is enhanced by setting a reinforcing beam 4 between the two opposite sides of the rectangular support beam assembly 2.

[0049] In some alternative embodiments, the reinforcing beam 4 includes:

[0050] Two fasteners 41 are respectively connected to the opposite sides of the rectangular support beam assembly 2;

[0051] The main body of the reinforcing beam 42 is connected to two fasteners 41 at both ends.

[0052] In this embodiment, the reinforcing beam 4 includes two fasteners 41 and a reinforcing beam body 42. Different sizes of reinforcing beam bodies 42 can be selected to match the cofferdam plate 1 according to its size.

[0053] In some optional embodiments, the right-angle connector 21 and the support beam body 22 are connected by assembly holes and are connected by flange bolts; the fastener 41 and the reinforcing beam body 42 are connected by assembly holes and are connected by flange bolts.

[0054] In this embodiment, the flange bolt connection facilitates the assembly and operation of the cofferdam internal support device, thereby improving assembly efficiency.

[0055] In some optional embodiments, the first fixing part 311 and the second fixing part 312 are provided with assembly holes at the connection points with the rectangular support beam assembly 2 and the connecting part 32, and are connected to the rectangular support beam assembly 2 and the connecting part 32 by flange bolts.

[0056] In this embodiment, the flange bolt connection facilitates the assembly and operation of the cofferdam internal support device, thereby improving assembly efficiency.

[0057] In some optional embodiments, four corbels 5 are also included, which are respectively set at the four corners inside the cofferdam plate 1, and the rectangular support beam assembly 2 is connected to the top of the four corbels 5.

[0058] In this embodiment, corbels 5 provide bottom support for the rectangular support beam assembly 2, thereby improving the overall support strength and stability of the cofferdam's internal bracing device.

[0059] On the other hand, the present invention provides a prefabricated cofferdam, which includes the prefabricated cofferdam internal support device as described in any of the above claims, the prefabricated cofferdam internal support device being used to provide support for the prefabricated cofferdam.

[0060] In summary, the prefabricated cofferdam internal support device provided by this utility model can adapt to different length requirements, eliminates the need for welding by construction personnel, improves the work efficiency of construction workers, and is reusable, effectively avoiding resource waste. By adjusting the sliding joint 322 sleeved on the fixed joint 321, the length of the diagonal brace 3 can be adjusted, facilitating flexible adjustment of the installation position and angle during the assembly of the internal support device. This solves the problems of existing technologies that generally use welding for internal support during cofferdam construction, which leads to difficulties in adjusting the size of the diagonal brace, slow construction speed, inflexible adjustment of the installation angle of the internal support device during construction, and difficulty in dismantling the internal support device.

[0061] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0062] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0063] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A prefabricated cofferdam internal support device, characterized in that, include: A rectangular support beam assembly (2) is used to connect to the inner wall of the cofferdam slab (1); Four sets of diagonal bracing components are respectively arranged on the inner side of the four corners of the rectangular support beam assembly (2). Each set of diagonal bracing components includes at least one diagonal bracing member (3). Each diagonal bracing member (3) includes a first fixing part (311), a second fixing part (312), and a connecting part (32). The first fixing part (311) and the second fixing part (312) are respectively connected to the two adjacent sides of the rectangular support beam assembly (2). The connecting part (32) includes a fixed section (321) and a sliding section (322). The fixed section (321) is connected to the first fixing part (311). One end of the sliding section (322) is sleeved on the fixed section (321) and can slide relative to the fixed section (321) to adjust the length of the diagonal bracing member (3). The other end of the sliding section (322) is connected to the second fixing part (312). A limiting member is used to define the relative positions of the fixed section (321) and the sliding section (322).

2. The prefabricated cofferdam internal support device as described in claim 1, characterized in that, The fixed section (321) includes at least one connecting plate (323), one end of which is connected to the first fixed part (311). The sliding section (322) includes the same number of sliding plates as the connecting plates (323). Each sliding plate includes two sliding plates (324) respectively disposed on both sides of the connecting plate (323). The sliding plates (324) are connected to the second fixed part (312). The connecting plate (323) can slide along the length direction of the diagonal brace (3) between the two sliding plates (324). The limiting member is used to limit the relative position between the connecting plate (323) and the sliding plate (324).

3. The prefabricated cofferdam internal support device as described in claim 2, characterized in that, The connecting plate (323) is provided with a pin hole (325), and the sliding plate (324) is provided with an elongated hole (326) along the length direction of the diagonal brace (3). The limiting member includes a pin and a limiting block (33). The pin passes through the pin hole (325) and the elongated hole (326) to limit the vertical position of the connecting plate (323) and the sliding plate (324). The limiting block (33) is disposed between the two sliding plates (324) and is located between the connecting plate (323) and the second fixing part (312) to limit the position of the connecting plate (323) and the sliding plate (324) in the length direction of the diagonal brace (3).

4. The prefabricated cofferdam internal support device as described in claim 1, characterized in that, The rectangular support beam assembly (2) includes: Four right-angle connectors (21) are respectively set at the four corners of the rectangular support beam assembly (2); Four supporting beam bodies (22), each of which is connected at both ends to two right-angle connectors (21) on the same side.

5. The prefabricated cofferdam internal support device as described in claim 4, characterized in that, At least one reinforcing beam (4) is provided between the two opposite sides of the rectangular support beam assembly (2).

6. The prefabricated cofferdam internal support device as described in claim 5, characterized in that, The reinforcing beam (4) includes: Two fasteners (41) are respectively connected to the opposite sides of the rectangular support beam assembly (2); The main body of the reinforced beam (42) is connected to two fasteners (41) at both ends.

7. The prefabricated cofferdam internal support device as described in claim 6, characterized in that, The right-angle connector (21) and the supporting beam body (22) are connected by assembly holes and are connected by flange bolts; the fastener (41) and the reinforcing beam body (42) are connected by assembly holes and are connected by flange bolts.

8. The prefabricated cofferdam internal support device as described in claim 1, characterized in that, The first fixing part (311) and the second fixing part (312) are provided with assembly holes at the connection points with the rectangular support beam assembly (2) and the connecting part (32), and are connected to the rectangular support beam assembly (2) and the connecting part (32) by flange bolts.

9. The prefabricated cofferdam internal support device as described in claim 1, characterized in that, It also includes four corbels (5), which are respectively set at the four corners inside the cofferdam plate (1), and the rectangular support beam assembly (2) is connected to the top of the four corbels (5).

10. A prefabricated cofferdam, characterized in that, It includes the internal support device for the prefabricated cofferdam as described in any one of claims 1-9, the internal support device for the prefabricated cofferdam being used to provide support for the prefabricated cofferdam.

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