Reinforcing structure for water conservancy and hydropower engineering design steel cofferdam

Abstract

The utility model belongs to the technical field of water conservancy construction, and relates to a reinforcing structure for a water conservancy and hydropower engineering design steel cofferdam, which comprises a first water baffle and a second water baffle inserted into the bottom of a river channel, the first water baffle and the second water baffle are parallel to each other, and the top of the first water baffle and the top of the second water baffle are respectively provided with a positioning mechanism. The positioning mechanism comprises a sliding rail, a sliding seat is connected to the sliding rail in a sliding mode, positioning plates are fixedly connected to the two sides of the sliding seat, the positioning mechanism is further provided with a plurality of screw hole seats corresponding to the positioning plates, and a first fixing arm and a second fixing arm are arranged between the first water baffle and the second water baffle. One end of the first fixing arm and one end of the second fixing arm are rotationally connected with the sliding seat, a plurality of teeth are arranged on the lower side of the first fixing arm, a plurality of teeth are arranged on the upper side of the second fixing arm, and the first fixing arm is meshed with the second fixing arm.

Description

Technical Field

[0001] This utility model belongs to the field of water conservancy construction technology, and relates to a reinforcement structure for steel cofferdams used in water conservancy and hydropower engineering design. Background Technology

[0002] A cofferdam is a temporary retaining structure built in water conservancy projects to construct permanent water conservancy facilities. Its function is to prevent water and soil from entering the construction site of the building, so as to facilitate drainage, excavation of foundation pits, and construction of buildings within the cofferdam.

[0003] Application CN202322711428.4 discloses a cofferdam protection reinforcement structure, which supports the main body of the cofferdam by setting up support rods with diagonal bracing on the ground. However, this structure can only be installed after the water inside the cofferdam has been pumped out. During the pumping process, the water level inside the cofferdam drops, and the water pressure that the main body of the cofferdam has to withstand continuously increases, posing a risk of tilting. Utility Model Content

[0004] This invention addresses the aforementioned problem of the risk of cofferdam tilting during pumping by providing a reinforced structure for steel cofferdams used in water conservancy and hydropower engineering design.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a reinforcing structure for steel cofferdams in water conservancy and hydropower engineering design, comprising a first water-retaining plate and a second water-retaining plate for insertion into the bottom of the river channel, the first water-retaining plate and the second water-retaining plate being parallel to each other, a positioning mechanism being installed on the top of both the first water-retaining plate and the second water-retaining plate, the positioning mechanism comprising a slide rail, a slide seat being slidably connected to the slide rail, positioning plates being fixedly connected to both sides of the slide seat, the positioning mechanism also having a plurality of screw holes corresponding to the positioning plates, a first fixed arm and a second fixed arm being provided between the first water-retaining plate and the second water-retaining plate, one end of the first fixed arm and one end of the second fixed arm being rotatably connected to the slide seat, a plurality of teeth being provided on the lower side of the first fixed arm, a plurality of teeth being provided on the upper side of the second fixed arm, the first fixed arm and the second fixed arm being meshed.

[0006] Preferably, the first fixing arm is provided with a number of key-shaped holes, and a side plate is fixedly connected to the upper side of the second fixing arm, and the side plate is also provided with a number of key-shaped holes.

[0007] Preferably, both the first and second water-blocking plates are provided with reinforcing ribs on their surfaces.

[0008] Preferably, the slide rail has a T-shaped cross-section.

[0009] Preferably, both the first and second water-blocking plates are made of stainless steel.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0011] This utility model has a positioning mechanism on the top of the first and second water-blocking plates to prevent them from being submerged by water. The positioning mechanism adjusts the position of the first and second fixed arms. The first and second fixed arms are engaged and positioned by a positioning pin inserted into a key-shaped hole, so that they cannot be separated. Thus, the first and second fixed arms support the first and second water-blocking plates, preventing the first and second water-blocking plates from tilting due to increased external water pressure when pumping water from the cofferdam.

[0012] This utility model has a simple structure, is easy to manufacture and use, and is suitable for widespread application. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of a reinforced structure for steel cofferdams used in water conservancy and hydropower engineering designs.

[0015] Figure 2 for Figure 1 Enlarged view of the structure at point A in the middle.

[0016] In the above figures, 1. First baffle plate; 2. Second baffle plate; 3. Positioning mechanism; 31. Slide rail; 32. Slide block; 33. Positioning plate; 34. Screw hole seat; 4. First fixed arm; 5. Second fixed arm; 6. Tooth; 7. Key hole; 8. Reinforcing rib. Detailed Implementation

[0017] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0019] like Figure 1 , Figure 2As shown, a reinforcing structure for a steel cofferdam used in water conservancy and hydropower engineering design includes a first water-retaining plate 1 and a second water-retaining plate 2 for insertion into the bottom of the river channel. To prevent excessive water pressure from causing the water-retaining plates to tilt, the first water-retaining plate 1 and the second water-retaining plate 2 are parallel to each other. Positioning mechanisms 3 are installed at the top of both the first water-retaining plate 1 and the second water-retaining plate 2, but the two positioning mechanisms 3 are at different heights. Positioning them at the top prevents water inside the cofferdam from submerging the positioning mechanisms 3. The positioning mechanism 3 includes a slide rail 31, a slide seat 32 slidably connected to the slide rail 31, and positioning plates 33 fixedly connected to both sides of the slide seat 32. The positioning plate 33 is provided with a through hole, and the positioning mechanism 3 is also provided with a plurality of screw hole seats 34 corresponding to the positioning plate 33. The screw hole seats 34 have internal threads and are fixed on the first baffle plate 1 or the second baffle plate 2. A first fixed arm 4 and a second fixed arm 5 are provided between the first baffle plate 1 and the second baffle plate 2. One end of the first fixed arm 4 and one end of the second fixed arm 5 are rotatably connected to the slide seat 32 in different positioning mechanisms 3. A plurality of teeth 6 are provided on the lower side of the first fixed arm 4 and a plurality of teeth are provided on the upper side of the second fixed arm 5. The first fixed arm 4 and the second fixed arm 5 mesh with each other.

[0020] Specifically, the reinforcement process of the first water-blocking plate 1 and the second water-blocking plate 2 of this utility model is as follows: The first water-blocking plate 1 and the second water-blocking plate 2 are inserted into the bottom of the river channel. Before pumping water from the cofferdam, the sliding seat 32 is slidable to move the first fixed arm 4 and the second fixed arm 5 to the same vertical plane. Then, the first fixed arm 4 and the second fixed arm 5 are rotated to make them mesh. Finally, the positioning plate 33 is connected to any screw hole seat 34 with bolts. The first fixed arm 4 and the second fixed arm 5 form a support for the first water-blocking plate 1 and the second water-blocking plate 2 to resist the increasing water pressure from the outside during the pumping process.

[0021] Furthermore, the first fixed arm 4 is provided with several key holes 7, and the upper side of the second fixed arm 5 is fixedly connected to a side plate, which is also provided with several key holes 7. Positioning pins or bolts are inserted into the key holes 7 that are aligned with the first fixed arm 4 and the second fixed arm 5, so that the two can no longer rotate. Due to the meshing of the two, the first fixed arm 4 and the second fixed arm 5 are fixed together.

[0022] Furthermore, both the first baffle plate 1 and the second baffle plate 2 are provided with reinforcing ribs 8.

[0023] Furthermore, the slide rail 31 has a T-shaped cross-section.

[0024] Furthermore, both the first water baffle 1 and the second water baffle 2 are made of stainless steel.

[0025] Additionally, as shown in the figure, after the first baffle plate 1 and the second baffle plate 2 are positioned, they can provide support for the baffle plates installed on the adjacent sides.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A reinforcing structure for a steel cofferdam used in the design of a water conservancy and hydropower project, comprising a first water stop plate and a second water stop plate for insertion into the bottom of a river channel, characterized in that, The first water baffle and the second water baffle are parallel to each other, and the top of the first water baffle and the second water baffle is provided with a positioning mechanism, the positioning mechanism comprises a sliding rail, a sliding seat is slidably connected to the sliding rail, and the two sides of the sliding seat are fixedly connected with positioning plates, a plurality of screw hole seats are arranged on the positioning mechanism corresponding to the positioning plates, a first fixing arm and a second fixing arm are arranged between the first water baffle and the second water baffle, one end of the first fixing arm and one end of the second fixing arm are rotatably connected with the sliding seat, a plurality of teeth are arranged on the lower side of the first fixing arm, a plurality of teeth are arranged on the upper side of the second fixing arm, and the first fixing arm and the second fixing arm are engaged.

2. The reinforcing structure for the steel cofferdam used in the design of water conservancy and hydropower engineering according to claim 1, characterized in that, The first fixing arm is provided with a plurality of key-shaped holes, and the upper side of the second fixing arm is fixedly connected with a side plate, and the side plate is also correspondingly provided with a plurality of key-shaped holes.

3. The reinforcing structure for the steel cofferdam used in the design of water conservancy and hydropower engineering according to claim 1, characterized in that, The surface of the first water baffle and the second water baffle is provided with a reinforcing rib.

4. The reinforcing structure for the steel cofferdam used in the design of water conservancy and hydropower engineering according to claim 1, characterized in that, The cross section of the sliding rail is T-shaped.

5. The reinforcing structure for the steel cofferdam used in the design of water conservancy and hydropower engineering according to claim 1, characterized in that, The first water baffle and the second water baffle are made of stainless steel.

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