Modularized rapid assembly type U-shaped cofferdam device

Abstract

The utility model discloses a modularized quick assembly type U-shaped cofferdam device which comprises an assembly type U-shaped cofferdam arranged on a to-be-enclosed section of a river bank on a river channel, and the assembly type U-shaped cofferdam is supported through a supporting mechanism. The fabricated U-shaped cofferdam comprises an adjusting formwork mechanism, a first L-shaped prefabricated steel end plate and a second L-shaped prefabricated steel end plate, the first L-shaped prefabricated steel end plate and the second L-shaped prefabricated steel end plate are arranged on the two sides of the adjusting formwork mechanism respectively, the adjusting formwork mechanism comprises a plurality of adjusting formworks which are sequentially connected from left to right, and the adjusting formworks comprise upper prefabricated steel formworks and lower prefabricated steel formworks; connecting mechanisms are arranged at the connecting positions between every two adjacent adjusting formworks, between the adjusting formworks and the first L-shaped prefabricated steel end plate and between the adjusting formworks and the second L-shaped prefabricated steel end plate. According to the fabricated U-shaped cofferdam, the fabricated U-shaped cofferdam is designed in a modularized mode, is easy to disassemble and assemble, easy, convenient and rapid to combine and capable of being recycled, the fabricated U-shaped cofferdam is supported through the supporting mechanism, external force can be effectively dispersed and resisted, it is guaranteed that the whole structure is more stable, and the use efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of cofferdams, and in particular relates to a modular quick-assembly type U-shaped cofferdam device. Background Art

[0002] A cofferdam is a temporary retaining structure that can be used to prevent water, contain water, and support the pit wall. It is usually removed after use. Sandbag cofferdams have become the most commonly used technology in the construction of fully enclosed cofferdams for small and medium-sized rivers because of their simple and convenient construction. However, this technology has the following shortcomings: First, it is easily washed and damaged by water flow, has a short lifespan, needs to be replaced and maintained, and cannot be recycled again; second, the scope of application is relatively narrow. When the cofferdam height is large, the sandbag cofferdam will lose its flexibility and its ability to resist water flow and water pressure will be reduced; third, the accumulation and removal process requires huge manpower and material resources; fourth, due to the large impact of sand sources, the conflicts brought about are increasing, which has an adverse effect on project construction.

[0003] In order to overcome the above-mentioned shortcomings, there is an urgent need for a cofferdam that is easy to disassemble and assemble, simple and quick to assemble, saves construction time and manpower, is highly safe and reusable, and is suitable for rapid assembly of small and medium-sized rivers. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a modular quick-assembled U-shaped cofferdam device in view of the deficiencies in the above-mentioned prior art. The design of the modularly designed assembled U-shaped cofferdam is novel and reasonable. The assembled U-shaped cofferdam is easy to disassemble and assemble, and the assembly is simple and quick. The assembled U-shaped cofferdam is supported by a supporting mechanism, which can effectively disperse and resist external forces, thereby ensuring that the entire structure is more stable, has high efficiency, and is easy to promote and use.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a modular fast-assembled U-shaped cofferdam device, characterized in that: it includes an assembled U-shaped cofferdam arranged at the river bank to be enclosed sections on both sides of the river channel, the assembled U-shaped cofferdam is supported by a supporting mechanism, the assembled U-shaped cofferdam includes an adjusting template mechanism and an L-shaped prefabricated steel end plate 1 and an L-shaped prefabricated steel end plate 2 respectively arranged on both sides of the adjusting template mechanism, the adjusting template mechanism includes a plurality of adjusting templates connected in sequence from left to right, the adjusting template includes an upper prefabricated steel template and a lower prefabricated steel template arranged up and down The prefabricated steel formwork is provided with connecting mechanisms at the connecting positions between two adjacent adjustment formworks, between the adjustment formwork and the L-shaped prefabricated steel end plate 1, and between the adjustment formwork and the L-shaped prefabricated steel end plate 2. The L-shaped prefabricated steel end plate 1, the L-shaped prefabricated steel end plate 2 and multiple adjustment formworks are fixed as a whole through multiple connecting mechanisms. The connecting mechanisms include four steel columns arranged in two rows and two columns. The two steel columns arranged in the row direction are connected by a connecting cross bar, and the two steel columns arranged in the column direction are connected by a connecting vertical bar. Both ends of the connecting cross bar and the connecting vertical bar are locked by locking nuts.

[0006] The above-mentioned modular quick-assembly U-shaped cofferdam device is characterized in that: the left sides of the upper prefabricated steel formwork and the lower prefabricated steel formwork are each provided with a first groove, the right sides of the upper prefabricated steel formwork and the lower prefabricated steel formwork are each provided with a first protrusion, the lower side of the upper prefabricated steel formwork is provided with a lower groove, the upper side of the lower prefabricated steel formwork is provided with an upper protrusion adapted to the lower groove, and the cross-section of the upper protrusion is trapezoidal.

[0007] The above-mentioned modular quick-assembly U-shaped cofferdam device is characterized in that: one end of the L-shaped prefabricated steel end plate 1 connected to the upper prefabricated steel formwork and the lower prefabricated steel formwork is provided with a second protrusion adapted to the first groove, and one end of the L-shaped prefabricated steel end plate 2 connected to the upper prefabricated steel formwork and the lower prefabricated steel formwork is provided with a second groove adapted to the first protrusion, and the cross-section of the second protrusion is trapezoidal.

[0008] The above-mentioned modular quick-assembly U-shaped cofferdam device is characterized in that the first groove and the first protrusion are adapted to each other, and the cross-section of the first protrusion is trapezoidal.

[0009] The above-mentioned modular quick-assembly U-shaped cofferdam device is characterized in that: the support mechanism includes a base arranged on the river bank and a support rod hinged to the top of the base, and the end of the support rod away from the base is connected to a support plate, and the support plate is arranged on the plate surface between four steel columns arranged in two rows and two columns.

[0010] The above-mentioned modular quick-assembly U-shaped cofferdam device is characterized in that the base is fixedly connected to the river bank through a plurality of anchor rods.

[0011] The above-mentioned modular quick-assembly U-shaped cofferdam device is characterized in that: the four steel columns of the connection mechanism between two adjacent adjustment templates are respectively arranged at the connection positions of the four prefabricated steel templates, and the support plate is supported at the connection positions of the four prefabricated steel templates and is in contact with the four prefabricated steel templates;

[0012] Two of the four steel columns of the connection mechanism between the adjustment template and the L-shaped prefabricated steel end plate 1 are arranged on the L-shaped prefabricated steel end plate 1, and the other two steel columns are arranged on the upper prefabricated steel template and the lower prefabricated steel template respectively. The support plate is supported at the connection position of the three prefabricated steel templates and is in contact with all three prefabricated steel templates;

[0013] Two of the four steel columns of the connecting mechanism between the adjustment template and the L-shaped prefabricated steel end plate 2 are arranged on the L-shaped prefabricated steel end plate 2, and the other two steel columns are respectively arranged on the upper prefabricated steel template and the lower prefabricated steel template. The support plate is supported at the connection position of the three prefabricated steel templates and is in contact with all three prefabricated steel templates.

[0014] The above-mentioned modular quick-assembly U-shaped cofferdam device is characterized in that: the adjustment template also includes a middle prefabricated steel template arranged between the upper prefabricated steel template and the lower prefabricated steel template, a first groove is arranged on the left side of the middle prefabricated steel template, a first protrusion is arranged on the right side of the middle prefabricated steel template, a lower groove is arranged on the lower side of the middle prefabricated steel template, and an upper protrusion adapted to the lower groove is arranged on the upper side of the middle prefabricated steel template.

[0015] Compared with the prior art, the utility model has the following advantages:

[0016] 1. The utility model adopts modular design to assemble a U-shaped cofferdam. The U-shaped cofferdam includes an adjusting template mechanism and an L-shaped prefabricated steel end plate 1 and an L-shaped prefabricated steel end plate 2 respectively arranged on both sides of the adjusting template mechanism. The adjusting template mechanism includes a plurality of adjusting templates connected in sequence from left to right. The number of adjusting templates is adaptively selected according to the length of the river bank to be enclosed section on both sides of the river channel. The cofferdam is easy to disassemble and assemble, simple and quick to assemble, and recyclable.

[0017] 2. In the utility model, connecting mechanisms are provided at the connecting positions between two adjacent adjusting templates, between the adjusting template and the L-shaped prefabricated steel end plate 1, and between the adjusting template and the L-shaped prefabricated steel end plate 2. The L-shaped prefabricated steel end plate 1, the L-shaped prefabricated steel end plate 2 and multiple adjusting templates are fixed as a whole through multiple connecting mechanisms, and the use effect is good.

[0018] 3. The utility model has a novel and reasonable design. It utilizes a supporting mechanism to support the assembled U-shaped cofferdam, which can effectively disperse and resist external forces, ensure that the entire structure is more stable, and is easy to promote and use.

[0019] To sum up, the design of the utility model is novel and reasonable. The assembled U-shaped cofferdam is easy to disassemble and assemble, and the assembly is simple and quick, and it can be recycled. The assembled U-shaped cofferdam is supported by a supporting mechanism, which can effectively disperse and resist external forces, ensuring that the entire structure is more stable, efficient, and easy to promote and use.

[0020] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the usage state of the utility model.

[0022] Figure 2 It is a structural schematic diagram of the utility model.

[0023] Figure 3 It is a structural schematic diagram of the adjustment template of the utility model.

[0024] Figure 4 It is a structural schematic diagram of an L-shaped prefabricated steel end plate of the utility model.

[0025] Figure 5 It is a structural schematic diagram of the L-shaped prefabricated steel end plate 2 of the utility model.

[0026] Figure 6 It is a schematic diagram of the connection relationship between the prefabricated steel formwork and the lower prefabricated steel formwork in the utility model.

[0027] Description of reference numerals:

[0028] 1—River channel; 2—River bank; 3—Assembled U-shaped cofferdam;

[0029] 4—support mechanism; 5—upper prefabricated steel formwork; 6—lower prefabricated steel formwork;

[0030] 7—L-shaped prefabricated steel end plate 1; 8—L-shaped prefabricated steel end plate 2; 9—steel column;

[0031] 10—connecting horizontal rod; 11—connecting vertical rod; 12—base;

[0032] 13—support rod; 14—support plate; 15—anchor rod;

[0033] 16—locking nut; 17—first groove; 18—first protrusion;

[0034] 19—upper convex block; 20—second convex block; 21—second concave groove;

[0035] 22—Medium prefabricated steel formwork. DETAILED DESCRIPTION

[0036] like Figures 1 to 6 As shown, the utility model includes an assembled U-shaped cofferdam 3 arranged at the river bank 2 on both sides of the river channel 1 to be enclosed, the assembled U-shaped cofferdam 3 is supported by a supporting mechanism 4, the assembled U-shaped cofferdam 3 includes an adjusting template mechanism and an L-shaped prefabricated steel end plate 1 7 and an L-shaped prefabricated steel end plate 2 8 respectively arranged on both sides of the adjusting template mechanism, the adjusting template mechanism includes a plurality of adjusting templates connected in sequence from left to right, the adjusting template includes an upper prefabricated steel template 5 and a lower prefabricated steel template 6 arranged up and down, and the adjusting templates are arranged between two adjacent adjusting templates. Connecting mechanisms are provided at the connecting positions between the template and the L-shaped prefabricated steel end plate 1 7, and between the adjusting template and the L-shaped prefabricated steel end plate 2 8. The L-shaped prefabricated steel end plate 1 7, the L-shaped prefabricated steel end plate 2 8 and multiple adjusting templates are fixed as a whole through multiple connecting mechanisms. The connecting mechanisms include four steel columns 9 arranged in two rows and two columns. The two steel columns 9 arranged in the row direction are connected by a connecting cross bar 10, and the two steel columns 9 arranged in the column direction are connected by a connecting vertical bar 11. Both ends of the connecting cross bar 10 and the connecting vertical bar 11 are locked by locking nuts 16.

[0037] It should be noted that, through modular design, the assembled U-shaped cofferdam includes an adjustment template mechanism and an L-shaped prefabricated steel end plate 1 and an L-shaped prefabricated steel end plate 2 respectively arranged on both sides of the adjustment template mechanism. The adjustment template mechanism includes a plurality of adjustment templates connected in sequence from left to right. The number of adjustment templates is adaptively selected according to the length of the river bank section to be enclosed on both sides of the river channel. It is easy to disassemble and assemble, and the combination is simple and fast, and it can be recycled. A connecting mechanism is provided at the connecting position between two adjacent adjustment templates, between the adjustment template and the L-shaped prefabricated steel end plate 1, and between the adjustment template and the L-shaped prefabricated steel end plate 2. The L-shaped prefabricated steel end plate 1, the L-shaped prefabricated steel end plate 2 and the plurality of adjustment templates are fixed as a whole through a plurality of connecting mechanisms, and the use effect is good; the support mechanism is used to support the assembled U-shaped cofferdam, which can effectively disperse and resist external forces and ensure that the entire structure is more stable.

[0038] It should be noted that cylindrical steel columns are used as fixed foundations at the ends of prefabricated parts. The cylindrical steel columns are strong and durable and can withstand large tensile stress. Cross-shaped holes are set in the steel columns, two of which are staggered and not through. The size of the holes is determined by the size of the inserted steel pipes. During the assembly process, the steel pipes are inserted into the steel columns according to the predetermined positions and sequence, and the close fit between the steel pipes and the holes is ensured through precise matching. The steel pipes are inserted into the steel columns, and nuts are set at the ends of the steel pipes for tightening. All the steel pipes are overlapped and anchored one by one to form a rectangular closed loop, so that the four prefabricated components are spliced ​​to form an overall structure by the anchor connection device. The rectangular closed loop can effectively disperse and resist external forces to ensure the stability of the entire structure.

[0039] In this embodiment, a first groove 17 is provided on the left side of the upper prefabricated steel formwork 5 and the lower prefabricated steel formwork 6, a first protrusion 18 is provided on the right side of the upper prefabricated steel formwork 5 and the lower prefabricated steel formwork 6, a lower groove is provided on the lower side of the upper prefabricated steel formwork 5, and an upper protrusion 19 adapted to the lower groove is provided on the upper side of the lower prefabricated steel formwork 6, and the cross-section of the upper protrusion 19 is trapezoidal.

[0040] In this embodiment, the end of the L-shaped prefabricated steel end plate 7 connected to the upper prefabricated steel template 5 and the lower prefabricated steel template 6 is provided with a second protrusion 20 adapted to the first groove 17, and the end of the L-shaped prefabricated steel end plate 2 8 connected to the upper prefabricated steel template 5 and the lower prefabricated steel template 6 is provided with a second groove 21 adapted to the first protrusion 18, and the cross-section of the second protrusion 20 is a trapezoid.

[0041] In this embodiment, the first groove 17 and the first protrusion 18 are matched, and the cross section of the first protrusion 18 is trapezoidal.

[0042] It should be noted that the steel plate modular components are designed with trapezoidal wedges around them, and the wedges are covered with water-expanding sealing materials, which can effectively prevent moisture from penetrating into the components to form a solid waterproof barrier; the prefabricated components are fitted with convex and concave trapezoidal wedges. This concave and convex trapezoidal wedge design allows multiple prefabricated components to be tightly combined when spliced ​​to form a stable overall structure. This design not only simplifies the installation process, improves the accuracy and efficiency of splicing, but also enhances the connection strength between components, making the entire building system more stable and reliable. The design of this prefabricated steel plate modular component fully considers the stability, sealing and construction efficiency of the structure.

[0043] In this embodiment, the support mechanism 4 includes a base 12 set on the river bank 2 and a support rod 13 hinged to the top of the base 12. The end of the support rod 13 away from the base 12 is connected to a support plate 14, and the support plate 14 is set on the plate surface between four steel columns 9 arranged in two rows and two columns.

[0044] In this embodiment, the base 12 is fixedly connected to the river bank 2 via a plurality of anchor rods 15 .

[0045] In this embodiment, the four steel columns 9 of the connection mechanism between two adjacent adjustment templates are respectively arranged at the connection positions of the four prefabricated steel templates, and the support plate 14 is supported at the connection positions of the four prefabricated steel templates and is in contact with all four prefabricated steel templates;

[0046] Two of the four steel columns 9 of the connection mechanism between the adjustment template and the L-shaped prefabricated steel end plate 7 are arranged on the L-shaped prefabricated steel end plate 7, and the other two steel columns 9 are arranged on the upper prefabricated steel template 5 and the lower prefabricated steel template 6 respectively. The support plate 14 is supported at the connection position of the three prefabricated steel templates and is in contact with all three prefabricated steel templates.

[0047] Two of the four steel columns 9 of the connection mechanism between the adjustment template and the L-shaped prefabricated steel end plate 28 are arranged on the L-shaped prefabricated steel end plate 28, and the other two steel columns 9 are respectively arranged on the upper prefabricated steel template 5 and the lower prefabricated steel template 6. The support plate 14 is supported at the connection position of the three prefabricated steel templates and is in contact with all three prefabricated steel templates.

[0048] In this embodiment, the adjustment template also includes a middle prefabricated steel template 22 arranged between the upper prefabricated steel template 5 and the lower prefabricated steel template 6, a first groove 17 is arranged on the left side of the middle prefabricated steel template 22, a first protrusion 18 is arranged on the right side of the middle prefabricated steel template 22, a lower groove is arranged on the lower side of the middle prefabricated steel template 22, and an upper protrusion 19 adapted to the lower groove is arranged on the upper side of the middle prefabricated steel template 22.

[0049] It should be noted that, according to the height of the cofferdam and the cofferdam suitable for rapid assembly of more river channels, one or more middle prefabricated steel formworks 22 can be set between the upper prefabricated steel formwork 5 and the lower prefabricated steel formwork 6, and the formwork combination structure and method are adjusted by analogy with the above structure. The number of supporting mechanisms 4 of the assembled U-shaped cofferdam 3 with the addition of middle prefabricated steel formworks 22 is adaptively increased, and the supporting positions of the supporting mechanisms 4 are all located at the connection positions of each prefabricated steel formwork.

[0050] The above is only a preferred embodiment of the present invention and does not constitute any limitation to the present invention. Any simple modification, change and equivalent structural change made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. A modular quick-assembly U-shaped cofferdam device, characterized in that: The invention comprises an assembled U-shaped cofferdam (3) arranged at a river bank (2) to be protected on both sides of a river channel (1), the assembled U-shaped cofferdam (3) being supported by a supporting mechanism (4), the assembled U-shaped cofferdam (3) comprising an adjusting template mechanism and an L-shaped prefabricated steel end plate 1 (7) and an L-shaped prefabricated steel end plate 2 (8) respectively arranged on both sides of the adjusting template mechanism, the adjusting template mechanism comprising a plurality of adjusting templates connected in sequence from left to right, the adjusting template comprising an upper prefabricated steel template (5) and a lower prefabricated steel template (6) arranged in an upper and lower manner, and a plurality of adjusting templates between adjacent two adjusting templates and between the adjusting templates and the L-shaped prefabricated steel templates. A connection mechanism is provided between the steel end plates 1 (7) and at the connection positions between the adjustment template and the L-shaped prefabricated steel end plate 2 (8). The L-shaped prefabricated steel end plate 1 (7), the L-shaped prefabricated steel end plate 2 (8) and the plurality of adjustment templates are fixed as a whole through a plurality of connection mechanisms. The connection mechanism comprises four steel columns (9) arranged in two rows and two columns. The two steel columns (9) arranged in the row direction are connected by a connecting cross bar (10), and the two steel columns (9) arranged in the column direction are connected by a connecting vertical bar (11). Both ends of the connecting cross bar (10) and the connecting vertical bar (11) are locked by locking nuts (16).

2. A modular quick-assembly U-shaped cofferdam device according to claim 1, characterized in that: The left sides of the upper prefabricated steel formwork (5) and the lower prefabricated steel formwork (6) are both provided with a first groove (17), the right sides of the upper prefabricated steel formwork (5) and the lower prefabricated steel formwork (6) are both provided with a first protrusion (18), the lower side of the upper prefabricated steel formwork (5) is provided with a lower groove, and the upper side of the lower prefabricated steel formwork (6) is provided with an upper protrusion (19) adapted to the lower groove, and the cross section of the upper protrusion (19) is a trapezoid.

3. A modular quick-assembly U-shaped cofferdam device according to claim 2, characterized in that: The end of the L-shaped prefabricated steel end plate 1 (7) connected to the upper prefabricated steel template (5) and the lower prefabricated steel template (6) is provided with a second protrusion (20) adapted to the first groove (17), and the end of the L-shaped prefabricated steel end plate 2 (8) connected to the upper prefabricated steel template (5) and the lower prefabricated steel template (6) is provided with a second groove (21) adapted to the first protrusion (18), and the cross-section of the second protrusion (20) is trapezoidal.

4. A modular quick-assembly U-shaped cofferdam device according to claim 2, characterized in that: The first groove (17) and the first protrusion (18) are matched, and the cross section of the first protrusion (18) is trapezoidal.

5. A modular quick-assembly U-shaped cofferdam device according to claim 1, characterized in that: The support mechanism (4) comprises a base (12) arranged on the river bank (2) and a support rod (13) hinged to the top of the base (12); an end of the support rod (13) away from the base (12) is connected to a support plate (14); and the support plate (14) is arranged on a plate surface between four steel columns (9) arranged in two rows and two columns.

6. A modular quick-assembly U-shaped cofferdam device according to claim 5, characterized in that: The base (12) is fixedly connected to the river bank (2) via a plurality of anchor rods (15).

7. A modular quick-assembly U-shaped cofferdam device according to claim 5, characterized in that: The four steel columns (9) of the connection mechanism between two adjacent adjustment templates are respectively arranged at the connection positions of the four prefabricated steel templates, and the support plate (14) is supported at the connection positions of the four prefabricated steel templates and is in contact with all the four prefabricated steel templates; Two of the four steel columns (9) of the connection mechanism between the adjustment template and the L-shaped prefabricated steel end plate (7) are arranged on the L-shaped prefabricated steel end plate (7), and the other two steel columns (9) are arranged on the upper prefabricated steel template (5) and the lower prefabricated steel template (6), respectively; the support plate (14) is supported at the connection position of the three prefabricated steel templates and is in contact with all the three prefabricated steel templates; Two of the four steel columns (9) of the connection mechanism between the adjustment template and the L-shaped prefabricated steel end plate 2 (8) are arranged on the L-shaped prefabricated steel end plate 2 (8), and the other two steel columns (9) are respectively arranged on the upper prefabricated steel template (5) and the lower prefabricated steel template (6); the support plate (14) is supported at the connection position of the three prefabricated steel templates and is in contact with all the three prefabricated steel templates.

8. A modular quick-assembly U-shaped cofferdam device according to claim 4, characterized in that: The adjustment template also includes a middle prefabricated steel template (22) arranged between the upper prefabricated steel template (5) and the lower prefabricated steel template (6), a first groove (17) is arranged on the left side of the middle prefabricated steel template (22), a first protrusion (18) is arranged on the right side of the middle prefabricated steel template (22), a lower groove is arranged on the lower side of the middle prefabricated steel template (22), and an upper protrusion (19) adapted to the lower groove is arranged on the upper side of the middle prefabricated steel template (22).

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