Water conservancy construction cofferdam device

Abstract

The invention discloses a water conservancy construction cofferdam device, and relates to the technical field of water conservancy construction, the water conservancy construction cofferdam device comprises an assembly type cofferdam, an anti-impact mechanism is arranged on the surface of the assembly type cofferdam, a cofferdam heightening mechanism is arranged on the inner wall of the assembly type cofferdam, the cofferdam heightening mechanism comprises a fixing block, the top of the fixing block is fixedly connected with a guide rod, and the guide rod is fixedly connected with the bottom of the assembly type cofferdam. And the surface of the guide rod is in threaded connection with a limiting nut. Through the arrangement of the anti-impact mechanism, when water flow impacts the cofferdam, the water flow can be primarily buffered through the first buffer plate, waves are broken while the flow speed of the water flow is reduced, then the water flow subjected to speed reduction is blocked again through the second buffer plate, and therefore when the water flow impacts the assembled cofferdam, the impact force is remarkably reduced; and meanwhile, by arranging the cofferdam heightening mechanism, when the water surface rises, the overall height of the cofferdam device can be increased, the water surface is prevented from being higher than the cofferdam device, and the cofferdam device is more convenient to use.

Description

Technical Field

[0001] The invention relates to the technical field of water conservancy construction, and in particular to a water conservancy construction cofferdam device. Background Art

[0002] A water conservancy construction cofferdam is a temporary water retaining structure built during the construction of a water conservancy project. Its main purpose is to isolate the construction area from the water area and create a relatively waterless or shallow water construction environment to facilitate the construction of water conservancy structures such as dams, pumping stations, bridge foundations, ship locks, etc. Water retaining function: by blocking river water, lake water or sea water, prevent water from entering the construction site, and ensure that construction personnel and equipment can work under dry or basically dry conditions. For example, when building the foundation part of a dam, the cofferdam can prevent the river water from flooding the construction area, so that the foundation construction can proceed smoothly. Water enclosure function: In some cases where construction needs to be carried out in water, the cofferdam can enclose a certain amount of water to keep the water level in the construction area at a suitable height, which is convenient for construction operations such as underwater concrete pouring. At the same time, water enclosure also helps to control the speed and direction of water flow in the construction area and reduce the interference of water flow on construction. Protection function: protect some completed engineering structures in the construction area from damage such as water scouring and soaking. For example, during the construction of a bridge foundation, the cofferdam can protect the already poured pier foundation and prevent it from being eroded by water flow, thereby ensuring the quality of the project.

[0003] At present, most of the existing cofferdam devices are put into use after being assembled into shape by on-site splicing. However, when the waves on the water surface are large, the cofferdam of this structure is constantly impacted by the strong impact of the water flow, which can easily cause damage to the cofferdam. At the same time, when there is too much precipitation during water conservancy construction, the water level rises and the cofferdam cannot be raised again, which can easily cause the water level to be higher than the cofferdam and directly enter the cofferdam from the top, causing certain inconveniences in use. Summary of the invention

[0004] The present invention provides a water conservancy construction cofferdam device to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A water conservancy construction cofferdam device comprises an assembled cofferdam, the surface of the assembled cofferdam is provided with an impact protection mechanism, the inner wall of the assembled cofferdam is provided with a cofferdam raising mechanism, the cofferdam raising mechanism comprises a fixed block, the top of the fixed block is fixedly connected with a guide rod, the surface of the guide rod is threadedly connected with a limiting nut, the top of the limiting nut is overlapped with a raised weir body, the raised weir body comprises a first raised plate and a second raised plate, one end of the first raised plate is plugged with one end of the second raised plate, the surface of the lower end of the raised weir body is fixedly connected with a leak-proof airbag, and the top of the leak-proof airbag is provided with an inflation tube.

[0007] A further improvement of the technical solution of the present invention is that the assembled cofferdam includes a first assembly plate and a second assembly plate, one end of the first assembly plate is plugged into one end of the second assembly plate, and one side of the first assembly plate is welded to one side of the fixed block.

[0008] A further improvement of the technical solution of the present invention is that the anti-impact mechanism includes a first fixing member, one side of which is fixedly connected to the surface of the assembled cofferdam, the interior of the first fixing member is rotatably connected to a first support rod, and one end of the first support rod is rotatably connected to a first shock-absorbing member.

[0009] A further improvement of the technical solution of the present invention is that: the first shock absorbing component includes a damper and a spring, and the inner wall of the spring is movably sleeved with the surface of the damper.

[0010] A further improvement of the technical solution of the present invention is that one end of the damper is rotatably connected to one end of the first support rod, and one end of the damper is rotatably connected to the second support rod.

[0011] A further improvement of the technical solution of the present invention is that one end of the second support rod is rotatably connected to a second fixing member, and one side of the second fixing member is fixedly connected to a first buffer plate.

[0012] A further improvement of the technical solution of the present invention is that a through groove is opened on the surface of the first buffer plate, a second buffer plate is fixedly connected to the middle of one side of the first buffer plate, a second shock absorber is fixedly connected to one side of the second buffer plate, and the structure of the second shock absorber is the same as that of the first shock absorber.

[0013] A further improvement of the technical solution of the present invention is that one end of the second shock-absorbing member away from the buffer plate is fixedly connected to the surface of the assembled cofferdam, and four groups of anti-impact mechanisms are provided, which are respectively arranged on the four sides of the assembled cofferdam.

[0014] Due to the adoption of the above technical solution, the present invention has the following technical advances compared with the prior art:

[0015] The present invention provides a water conservancy construction cofferdam device. Through the arrangement of an anti-impact mechanism, when a water flow hits the cofferdam, the water flow can be initially buffered by a first buffer plate, thereby reducing the water flow velocity and breaking the waves. Subsequently, the second buffer plate blocks the decelerated water flow again, thereby significantly reducing the impact force when the water flow hits the assembled cofferdam. At the same time, the arrangement of the cofferdam heightening mechanism can also increase the overall height of the cofferdam device when the water level rises, thereby preventing the water level from being higher than the cofferdam device, making it more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the present invention;

[0017] Figure 2 It is a bottom view structural schematic diagram of the present invention;

[0018] Figure 3 It is a schematic diagram of the structure of the heightened weir body of the present invention in a raised state;

[0019] Figure 4 It is a schematic diagram of the structure of the cofferdam heightening mechanism of the present invention;

[0020] Figure 5 It is a schematic diagram of the structure of the cofferdam heightening mechanism of the present invention when viewed from above;

[0021] Figure 6 It is a schematic diagram of the structure of the anti-impact mechanism of the present invention.

[0022] In the figure: 11, first assembly plate; 12, second assembly plate; 21, first fixing member; 22, first support rod; 23, first shock absorbing member; 231, damper; 232, spring; 24, second support rod; 25, second fixing member; 26, first buffer plate; 27, second buffer plate; 28, second shock absorbing member; 31, fixing block; 32, guide rod; 33, limiting nut; 34, first heightening plate; 35, second heightening plate; 36, leak-proof airbag; 37, inflation tube. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with embodiments:

[0024] Example 1

[0025] like Figure 1-6As shown, the present invention provides a water conservancy construction cofferdam device, including an assembled cofferdam, the surface of the assembled cofferdam is provided with an impact protection mechanism, the inner wall of the assembled cofferdam is provided with a cofferdam heightening mechanism, the cofferdam heightening mechanism includes a fixed block 31, the top of the fixed block 31 is fixedly connected with a guide rod 32, the surface of the guide rod 32 is threadedly connected with a limiting nut 33, the top of the limiting nut 33 is overlapped with a heightened weir body, the heightened weir body includes a first heightening plate 34 and a second heightening plate 35, one end of the first heightening plate 34 is plugged with one end of the second heightening plate 35, the surface of the lower end of the heightened weir body is fixedly connected with a leak-proof airbag 36, and the top of the leak-proof airbag 36 is provided with an inflation tube 37.

[0026] In this embodiment, when the water level rises, the raised weir body is pulled upward to move up along the guide rod 32, and then the limiting nut 33 is rotated to make the limiting nut 33 contact with the bottom of the raised weir body to support it, and then the leak-proof airbag 36 is inflated through the inflation tube 37 to expand the leak-proof airbag 36 to seal the gap between the raised weir body and the assembled cofferdam, thereby increasing the overall height of the cofferdam device and making it more convenient to use.

[0027] Example 2

[0028] like Figure 1-6 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, it includes an assembled cofferdam, the surface of the assembled cofferdam is provided with an anti-impact mechanism, the inner wall of the assembled cofferdam is provided with a cofferdam heightening mechanism, the cofferdam heightening mechanism includes a fixed block 31, the top of the fixed block 31 is fixedly connected with a guide rod 32, the surface of the guide rod 32 is threadedly connected with a limiting nut 33, the top of the limiting nut 33 is overlapped with a heightened weir body, the heightened weir body includes a first heightening plate 34 and a second heightening plate 35, one end of the first heightening plate 34 is plugged with one end of the second heightening plate 35, and the surface of the lower end of the heightened weir body is fixedly connected with a leak-proof airbag 36, the leak-proof airbag An inflation tube 37 is provided at the top of 36, and the assembled cofferdam includes a first assembly plate 11 and a second assembly plate 12, one end of the first assembly plate 11 is plugged into one end of the second assembly plate 12, one side of the first assembly plate 11 is welded to one side of the fixed block 31, and the anti-impact mechanism includes a first fixing member 21, one side of the first fixing member 21 is fixedly connected to the surface of the assembled cofferdam, the interior of the first fixing member 21 is rotatably connected to the first support rod 22, one end of the first support rod 22 is rotatably connected to the first shock-absorbing member 23, the first shock-absorbing member 23 includes a damper 231 and a spring 232, and the inner wall of the spring 232 is movably sleeved with the surface of the damper 231.

[0029] In this embodiment, during water conservancy construction, the cofferdam device is lowered to the construction area by a crane, and the riverbed is cleared during the lowering process. Then, the water in the cofferdam device is pumped out, and construction can be carried out in the cofferdam. When the water flow hits the cofferdam device, the first buffer plate 26 first contacts the water flow to divert and slow down the water flow. Under the impact of the water flow, the first support rod 22 and the second support rod 24 rotate to compress the first shock absorber 23. The first buffer plate 26 directly compresses the second shock absorber 28, and the impact force of the water flow is consumed through the contraction of the damper 231.

[0030] Example 3

[0031] like Figure 1-6 As shown, on the basis of Example 1, the present invention provides a technical solution: preferably, it includes an assembled cofferdam, the surface of the assembled cofferdam is provided with an anti-impact mechanism, the inner wall of the assembled cofferdam is provided with a cofferdam heightening mechanism, the cofferdam heightening mechanism includes a fixed block 31, the top of the fixed block 31 is fixedly connected with a guide rod 32, the surface of the guide rod 32 is threadedly connected with a limiting nut 33, the top of the limiting nut 33 is overlapped with a heightened dam body, the heightened dam body includes a first heightening plate 34 and a second heightening plate 35, one end of the first heightening plate 34 is plugged with one end of the second heightening plate 35, the surface of the lower end of the heightened dam body is fixedly connected with a leak-proof airbag 36, the top of the leak-proof airbag 36 is provided with an inflation tube 37, and a damper One end of 231 is rotatably connected to one end of the first support rod 22, one end of the damper 231 is rotatably connected to the second support rod 24, one end of the second support rod 24 is rotatably connected to the second fixing member 25, one side of the second fixing member 25 is fixedly connected to the first buffer plate 26, the surface of the first buffer plate 26 is provided with a through groove, the middle part of one side of the first buffer plate 26 is fixedly connected to the second buffer plate 27, one side of the second buffer plate 27 is fixedly connected to the second shock absorber 28, the structure of the second shock absorber 28 is the same as that of the first shock absorber 23, one end of the second shock absorber 28 away from the buffer plate 27 is fixedly connected to the surface of the assembled cofferdam, and four groups of anti-impact mechanisms are provided, which are respectively arranged on the four sides of the assembled cofferdam.

[0032] In this embodiment, the water flow contacts the second buffer plate 27, and under the action of the second buffer plate 27, the water flow is slowed down and diverted for a second time, thereby reducing the impact force of the water flow again and preventing the water flow from damaging the assembled cofferdam.

[0033] The working principle of the water conservancy construction cofferdam device is described in detail below.

[0034] like Figure 1-6As shown, during water conservancy construction, the cofferdam device is lowered to the construction area by a crane, and the riverbed is cleaned during the lowering process, and then the water in the cofferdam device is pumped out, and construction can be carried out in the cofferdam. When the water flow hits the cofferdam device, the first buffer plate 26 first contacts the water flow, and the water flow is diverted and decelerated. Under the impact of the water flow, the first support rod 22 and the second support rod 24 rotate to compress the first shock absorbing member 23, and the first buffer plate 26 directly compresses the second shock absorbing member 28, and the impact force of the water flow is consumed by the contraction of the damper 231. Then the water flow and the second buffer plate 2 7 contact, under the action of the second buffer plate 27, the water flow is secondary slowed down and diverted, and the impact force of the water flow is reduced again to prevent the water flow from damaging the assembled cofferdam. When the water level rises, the heightened weir body is pulled upward to move the heightened weir body upward along the guide rod 32, and then the limiting nut 33 is rotated to make the limiting nut 33 contact with the bottom of the heightened weir body to support it, and then the plugging airbag 36 is inflated through the inflation tube 37 to expand the plugging airbag 36 to block the gap between the heightened weir body and the assembled cofferdam, thereby increasing the overall height of the cofferdam device and making it more convenient to use.

Claims

1. A water conservancy construction cofferdam device, comprising an assembled cofferdam, characterized in that: The surface of the assembled cofferdam is provided with an anti-impact mechanism, and the inner wall of the assembled cofferdam is provided with a cofferdam heightening mechanism, the cofferdam heightening mechanism comprises a fixed block (31), the top of the fixed block (31) is fixedly connected with a guide rod (32), the surface of the guide rod (32) is threadedly connected with a limiting nut (33), the top of the limiting nut (33) is overlapped with a heightened cofferdam body, the heightened cofferdam body comprises a first heightening plate (34) and a second heightening plate (35), one end of the first heightening plate (34) is plugged with one end of the second heightening plate (35), the surface of the lower end of the heightened cofferdam body is fixedly connected with a leak-blocking airbag (36), and the top of the leak-blocking airbag (36) is provided with an inflation tube (37).

2. A water conservancy construction cofferdam device according to claim 1, characterized in that: The assembled cofferdam comprises a first assembly plate (11) and a second assembly plate (12), one end of the first assembly plate (11) is plugged into one end of the second assembly plate (12), and one side of the first assembly plate (11) is welded to one side of a fixing block (31).

3. A water conservancy construction cofferdam device according to claim 1, characterized in that: The anti-impact mechanism comprises a first fixing member (21), one side of which is fixedly connected to the surface of the assembled cofferdam, a first support rod (22) is rotatably connected inside the first fixing member (21), and one end of the first support rod (22) is rotatably connected to a first shock absorbing member (23).

4. A water conservancy construction cofferdam device according to claim 3, characterized in that: The first shock absorbing member (23) comprises a damper (231) and a spring (232), and the inner wall of the spring (232) is movably sleeved with the surface of the damper (231).

5. A water conservancy construction cofferdam device according to claim 4, characterized in that: One end of the damper (231) is rotatably connected to one end of the first support rod (22), and one end of the damper (231) is rotatably connected to the second support rod (24).

6. A water conservancy construction cofferdam device according to claim 5, characterized in that: One end of the second support rod (24) is rotatably connected to a second fixing member (25), and one side of the second fixing member (25) is fixedly connected to a first buffer plate (26).

7. A water conservancy construction cofferdam device according to claim 6, characterized in that: A through groove is provided on the surface of the first buffer plate (26); a second buffer plate (27) is fixedly connected to the middle of one side of the first buffer plate (26); a second shock absorbing member (28) is fixedly connected to one side of the second buffer plate (27); and the structure of the second shock absorbing member (28) is the same as that of the first shock absorbing member (23).

8. A water conservancy construction cofferdam device according to claim 7, characterized in that: One end of the second shock absorbing member (28) away from the buffer plate (27) is fixedly connected to the surface of the assembled cofferdam, and four groups of anti-impact mechanisms are arranged respectively on the four sides of the assembled cofferdam.

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