Fabricated steel cofferdam

Abstract

The utility model discloses an assembly type steel cofferdam which comprises four fixing piles, inserting grooves are formed in the opposite sides of the four fixing piles, inserting rods are inserted into the inserting grooves, a fixing frame is fixedly connected between the opposite inserting rods, a first square groove is formed in the inner side of the fixing frame, and a second square groove is formed in the other side of the fixing frame. The fixing piles and the fixing frame are arranged, the fixing piles are fixed to the bottom of a shoal river, the baffles make contact with one another and are tightly arranged and inserted into the second square grooves on the shore, the baffles and the fixing frame form four walls, then the installed fixing frame is connected with the fixing piles in an inserted mode through the inserting rods after entering water, and the working time in water is shortened.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel cofferdams, and in particular relates to an assembled steel cofferdam. Background Art

[0002] Cofferdam refers to a temporary retaining structure built for the construction of permanent water conservancy facilities in water conservancy project construction. Its function is to prevent water and soil from entering the construction site of the building so that drainage can be carried out in the cofferdam, foundation pits can be excavated, and buildings can be built. It is generally used in hydraulic structures.

[0003] The cofferdam is composed of multiple steel plates. When installing the cofferdam, the workers need to install multiple steel plates in the water one by one until the steel plates form a circle to form a cofferdam, and then pump out the water. The whole process requires working in the water for a long time, which is extremely inconvenient. Utility Model Content

[0004] In order to solve the above problems, the purpose of the utility model is to provide an assembled steel cofferdam.

[0005] To achieve the above-mentioned purpose, the utility model proposes an assembled steel cofferdam, including four fixed piles, each of which has a slot on one side opposite to the other, in which a plug rod is inserted, and a fixed frame is fixedly connected between the opposite plug rods, a first square slot is provided on the inner side of the fixed frame, and a second square slot is provided on the other side of the fixed frame, the first square slot is connected to the second square slot, the size of the first square slot is larger than that of the second square slot, and a plurality of baffles are installed in the second square slot by plugging.

[0006] In one example, the side wall of the fixed frame is slidably connected to two sliding rods, a cross bar is fixedly connected between the two sliding rods, the two sliding rods pass through the fixed frame and extend into the second square groove, one end of the two sliding rods is fixedly connected to a fixed seat, the upper surface of the fixed seat is fixedly connected to a plurality of vertical rods, all of the vertical rods are arranged in an array, the lower surface of the baffle is provided with a socket, the socket cooperates with the vertical rod, and the sum of the heights of the fixed seat and the baffle is the same as the height of the second square groove.

[0007] In one example, one side of the baffle is provided with a clamping groove, and the other side is fixedly connected to a clamping rod, and the distance between adjacent vertical rods is the same as the width of the baffle.

[0008] In one example, the fixing seat and the baffle have the same thickness, and the thickness of the fixing seat and the baffle are the same as the depth of the second square groove.

[0009] In one example, the fixing pile has the same height as the fixing frame, the length of the insertion rod and the slot is half the height of the fixing pile and the fixing frame, one side of the fixing pile having the slot is fixedly connected to a vertical plate, the length of the vertical plate is the same as that of the fixing pile, the vertical plate is located on the inner side of the fixing frame, and the vertical plate is in close contact with the fixing frame.

[0010] In one example, the other two sides of the fixing pile are fixedly connected to the support seat, the outer sides of all the baffles are fixedly connected to the clamping plate, the shape of the clamping plate is U-shaped, the support seat and the clamping plate are at the same height, and a support plate is placed on the clamping plate and the support seat.

[0011] The assembled steel cofferdam proposed by the utility model can bring the following beneficial effects:

[0012] First, by setting fixed piles and fixed frames, the fixed piles are fixed on the bottom of the shallow river, and the baffles are placed in contact with each other and arranged closely on the shore in the second square groove, so that four walls are formed by the baffles and the fixed frames. Then, the fixed frames are connected to the fixed piles by plugging rods into the water, which reduces the working time in the water. At the same time, no screws or nuts are needed, and the installation is purely built and installed, which saves time and effort, and is more convenient for welding the gaps later.

[0013] Secondly, by setting a support plate, a clamping plate and a support seat, the support plate is clamped on the clamping plate and the support seat, and four fixing piles are added to form a square support ring on the outside to fix the position of the baffle, increase the pressure of the river water that the baffle can withstand, and prevent the baffle from being squeezed and deformed by the river water. By setting supports on the outside of the steel cofferdam, the pressure resistance of the baffle is increased, while greatly saving the space inside the steel cofferdam, making it convenient for workers to construct inside the steel cofferdam. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0015] In the attached picture:

[0016] Figure 1 It is a structural schematic diagram of the utility model.

[0017] Figure 2 It is a structural diagram of a fixed frame.

[0018] Figure 3 It is a structural schematic diagram of fixed piles and fixed frames.

[0019] Figure 4 Schematic diagram of the structure of the baffle.

[0020] In the figure: 1. fixed pile; 2. slot; 3. plug rod; 4. fixed frame; 5. first square slot; 6. second square slot; 7. baffle; 8. sliding rod; 9. cross bar; 10. fixed seat; 11. vertical rod; 12. socket; 13. clamping rod; 14. vertical plate; 15. support seat; 16. clamping plate; 17. support plate. DETAILED DESCRIPTION

[0021] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.

[0022] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] In the present utility model, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description of reference terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more schemes or examples.

[0026] like Figure 1 to Figure 4 As shown, the embodiment of the utility model proposes an assembled steel cofferdam, including four fixed piles 1, each of the four fixed piles 1 is provided with a slot 2 on the opposite side, a plug rod 3 is inserted in the slot 2, a fixed frame 4 is fixedly connected between the opposite plug rods 3, a first square slot 5 is provided on the inner side of the fixed frame 4, a second square slot 6 is provided on the other side of the fixed frame 4, the first square slot 5 is connected to the second square slot 6, the size of the first square slot 5 is larger than the size of the second square slot 6, and a plurality of baffles 7 are installed in the second square slot 6 by plugging. This cofferdam is suitable for shallow water on the riverside Regional use, this cofferdam is a square ring cofferdam. Before use, fix the fixed pile 1 on the bottom of the shallow river, and place the baffles 7 in contact with each other and closely arranged on the shore in the second square groove 6. The baffles 7 and the fixed frame 4 form four walls, and then go into the water to connect the installed fixed frame 4 with the fixed pile 1 by plugging the plug rod 3 to reduce the working time in the water. The baffle 7 is placed in the second square groove 6, and the fixed pile 1 and the fixed frame 4 are connected by the plug rod 3 and the slot 2. No screws or nuts are needed. It is purely built and installed, which saves time and effort, and is more convenient for welding the gap later.

[0027] Specifically, the side wall of the fixed frame 4 is slidably connected to the two sliding rods 8, and the two sliding rods 8 are fixedly connected to the cross bar 9. The two sliding rods 8 pass through the fixed frame 4 and extend into the second square groove 6. One end of the two sliding rods 8 is fixedly connected to the fixed seat 10. The upper surface of the fixed seat 10 is fixedly connected to multiple vertical rods 11. All vertical rods 11 are arranged in an array. The lower surface of the baffle 7 is provided with a plug hole 12, and the plug hole 12 cooperates with the vertical rod 11. The sum of the heights of the fixed seat 10 and the baffle 7 is the same as the height of the second square groove 6. The length of the second square groove 6 is an integer multiple of the width of the baffle 7. Push the cross bar 9 to push the fixed seat 10 out of the second square groove 6, and then insert the baffle 7 on the vertical rod 11 in turn, and then pull the cross bar 9 again. The fixed seat 10 drives the baffle 7 back to the second square groove 6 to fill the second square groove 6. The vertical rod 11 fixes the position of the baffle 7 to avoid shaking. The baffle 7 fills the second square groove 6, making the entire steel cofferdam more neat.

[0028] Specifically, one side of the baffle plate 7 is provided with a snap-in groove, and the other side is fixedly connected with a snap-in rod 13. The distance between adjacent vertical rods 11 is the same as the width of the baffle plate 7. The baffle plates 7 on the two sides have only a snap-in rod 13 and only a snap-in groove. The baffle plates 7 are installed and connected by the snap-in rod 13 and the snap-in groove, which greatly reduces the gap between the baffle plates 7 and improves the water-blocking performance.

[0029] Specifically, the fixing seat 10 is the same thickness as the baffle 7, and the thickness of the fixing seat 10 and the baffle 7 is the same as the depth of the second square groove 6. When the baffle 7 enters the second square groove 6, since the thickness of the baffle 7 is the same as the depth of the second square groove 6, the inner side of the baffle 7 contacts the second square groove 6. When the baffle 7 is squeezed by the water pressure, the baffle 7 is pressed against the side wall of the second square groove 6, thereby reducing the gap between the baffle 7 and the fixing frame 4 and avoiding a large amount of water seepage.

[0030] Specifically, the fixed pile 1 has the same height as the fixed frame 4, the length of the insertion rod 3 and the slot 2 is half the height of the fixed pile 1 and the fixed frame 4, the fixed pile 1 has one side of the slot 2 fixedly connected to the vertical plate 14, the length of the vertical plate 14 is the same as that of the fixed pile 1, the vertical plate 14 is located on the inner side of the fixed frame 4, the vertical plate 14 is in close contact with the fixed frame 4, the insertion rod 3 and the slot 2 are located at the upper part of the fixed pile 1 and the fixed frame 4 respectively, the gravity of the fixed pile 1 is pressed on the bottom surface of the slot 2 through the insertion rod 3, and is supported by the fixed pile 1, so as to prevent the fixed pile 1 from being separated from the fixed frame 4, and the vertical plate 14 is the same length as the fixed pile 1, and the inner side is in close contact with the fixed frame 4, thereby blocking the river water extending from the gap between the fixed pile 1 and the fixed frame 4.

[0031] Specifically, the other two sides of the fixed pile 1 are fixedly connected to the support seat 15, and the outer sides of all the baffles 7 are fixedly connected to the clamping plate 16. The clamping plate 16 is U-shaped, and the support seat 15 and the clamping plate 16 are at the same height. Support plates 17 are placed on the clamping plate 16 and the support seat 15, and the support plates 17 are clamped on the clamping plate 16 and the support seat 15. Together with four fixed piles 1, a square support ring is formed on the outer side to fix the position of the baffle 7, increase the pressure of the river water that the baffle 7 can withstand, and prevent the baffle 7 from being squeezed and deformed by the river water. By arranging supports on the outer side of the steel cofferdam, the pressure resistance of the baffle 7 is increased, and the space inside the steel cofferdam is greatly saved, which is convenient for the staff to construct inside the steel cofferdam.

[0032] Working principle: fix the fixed pile 1 on the bottom of the shallow river, push the cross bar 9, push the fixed seat 10 out of the second square groove 6, then insert the baffle 7 on the vertical rod 11 in sequence, then pull the cross bar 9, the fixed seat 10 drives the baffle 7 back to the second square groove 6, fill the second square groove 6, after the four fixed frames 4 are installed, install the four fixed frames 4 on the fixed pile 1 before launching, and then place the four support plates 17 on the card plates 16 and the support seats 15 on the four sides of the steel cofferdam respectively.

[0033] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0034] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. An assembled steel cofferdam, characterized in that: The invention comprises four fixing piles (1), wherein opposite sides of the four fixing piles (1) are each provided with a slot (2), a plug rod (3) is inserted into the slot (2), and a fixing frame (4) is fixedly connected between the opposite plug rods (3), a first square slot (5) is provided on the inner side of the fixing frame (4), and a second square slot (6) is provided on the other side of the fixing frame (4), the first square slot (5) is connected to the second square slot (6), the size of the first square slot (5) is larger than the size of the second square slot (6), and a plurality of baffles (7) are installed in the second square slot (6) by means of plugging.

2. The assembled steel cofferdam according to claim 1, characterized in that: The side wall of the fixed frame (4) is slidably connected to two sliding rods (8), a cross rod (9) is fixedly connected between the two sliding rods (8), the two sliding rods (8) penetrate the fixed frame (4) and extend into the second square groove (6), one end of the two sliding rods (8) is fixedly connected to a fixed seat (10), the upper surface of the fixed seat (10) is fixedly connected to a plurality of vertical rods (11), all of the vertical rods (11) are arranged in an array, the lower surface of the baffle (7) is provided with a plug hole (12), the plug hole (12) is matched with the vertical rod (11), and the sum of the heights of the fixed seat (10) and the baffle (7) is the same as the height of the second square groove (6).

3. The assembled steel cofferdam according to claim 2, characterized in that: One side of the baffle (7) is provided with a clamping groove, and the other side is fixedly connected to a clamping rod (13), and the distance between adjacent vertical rods (11) is the same as the width of the baffle (7).

4. The assembled steel cofferdam according to claim 2, characterized in that: The fixing seat (10) and the baffle plate (7) have the same thickness, and the thickness of the fixing seat (10) and the baffle plate (7) are the same as the depth of the second square groove (6).

5. The assembled steel cofferdam according to claim 1, characterized in that: The fixing pile (1) and the fixing frame (4) have the same height, the length of the insertion rod (3) and the slot (2) is half the height of the fixing pile (1) and the fixing frame (4), one side of the fixing pile (1) having the slot (2) is fixedly connected to a vertical plate (14), the length of the vertical plate (14) is the same as that of the fixing pile (1), the vertical plate (14) is located on the inner side of the fixing frame (4), and the vertical plate (14) is in close contact with the fixing frame (4).

6. The assembled steel cofferdam according to claim 1, characterized in that: The remaining two sides of the fixing pile (1) are fixedly connected to the support seat (15), the outer sides of all the baffles (7) are fixedly connected to the clamping plate (16), the clamping plate (16) is in a U-shape, the support seat (15) and the clamping plate (16) are at the same height, and a support plate (17) is placed on the clamping plate (16) and the support seat (15).

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