Cofferdam device for water conservancy construction

Abstract

The utility model relates to the technical field of cofferdams, in particular to a cofferdam device for water conservancy construction, which comprises a plurality of positioning piles, the positioning piles are arranged in water, the bottoms of the positioning piles are inserted into a foundation in the water, and the distances between the adjacent positioning piles are consistent. An outer-layer baffle is vertically arranged between every two adjacent positioning piles in a sliding mode, a bottom-layer sealing plate is vertically arranged between every two adjacent positioning piles in a sliding mode, and the bottom-layer sealing plates are located between the outer-layer baffles and the foundation surface. An inner layer baffle is arranged on the inner side of the outer layer baffle, a waterproof space is arranged between the outer layer baffle and the inner layer baffle, and a waterproof medium is arranged in the waterproof space. A buffering interlayer is arranged between every two adjacent inner-layer baffles and is of an elastic structure. According to the cofferdam device, the technical problems of installation and stability of the cofferdam device in the torrent river and capability of forming different cofferdam shapes are solved.

Description

Technical Field

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

[0002] Cofferdams in water conservancy construction are primarily used for diversion, water retention, and protection. Their primary function is to direct and block river flow, providing a temporary, water-free zone within the river to facilitate the construction of water conservancy facilities, minimizing the impact of water flow on construction sites, preventing scour, and protecting the construction area and workers.

[0003] Existing cofferdam devices for water conservancy construction are either an integral cofferdam device or a plurality of small water retaining plates assembled and installed through special-shaped structures. The integral cofferdam device is difficult to transport and install, while the construction efficiency of the small water retaining plates is low.

[0004] The Chinese utility model patent, entitled "A New Cofferdam Device for Water Conservancy Construction," with publication number CN219931031U, has been published. The patent includes two cofferdam baffles, one located on either side of the first. A fixing mechanism is provided on the outside of the second cofferdam baffle, while a supporting mechanism is provided on the inside of the first cofferdam baffle. The fixing mechanism includes screws with threads extending through both cofferdam baffles. Rubber pads are bonded to both sides of the first cofferdam baffle, and sockets are provided on both sides of the first cofferdam baffle corresponding to the screws. The device uses rubber pads to seal the gap between the first and second cofferdam baffles, improving the watertightness of the cofferdam. The connection between the screws and rubber pads facilitates assembly and disassembly of the first and second cofferdam baffles.

[0005] Although the device can be waterproof and sealed and easily assembled and disassembled, the fixed shape of the cofferdam and the wide connection between the boards make it difficult to use in rapid rivers. Utility Model Content

[0006] The purpose of this application is to provide a cofferdam device for water conservancy construction, which solves the technical problems of installation and stability of the cofferdam device in a rapid river and can form different cofferdam shapes.

[0007] In order to solve the above technical problems, the solution adopted by this application is as follows:

[0008] A cofferdam device for water conservancy construction comprises positioning piles. The positioning piles are arranged in water, the bottoms of the positioning piles are inserted into the underwater foundation, and the spacing between adjacent positioning piles is consistent.

[0009] Preferably, an outer baffle is provided for vertical sliding between adjacent positioning piles, and a bottom sealing plate is provided for vertical sliding between adjacent positioning piles, and the bottom sealing plate is located between the outer baffle and the foundation surface.

[0010] Preferably, an inner baffle is provided inside the outer baffle, a waterproof space is provided between the outer baffle and the inner baffle, and a waterproof medium is provided in the waterproof space.

[0011] Preferably, a buffer interlayer is provided between adjacent inner baffles, and the buffer interlayer is an elastic structure.

[0012] Preferably, a slide groove is vertically penetrated on the inner baffle plate, and a foundation baffle is vertically slidably arranged in the slide groove.

[0013] Preferably, the foundation baffle includes a sliding plate body and a foundation plug-in plate. The sliding plate body is slidably arranged in the sliding groove of the inner baffle. The bottom of the sliding plate body is fixedly connected to the foundation plug-in plate, and the foundation plug-in plate is vertically inserted in the foundation.

[0014] Preferably, the positioning pile includes a pile body, a slot and a positioning pin.

[0015] Preferably, the pile body is vertically arranged in water, and a positioning nail is fixedly arranged at the bottom of the pile body, and the positioning nail is inserted into the foundation.

[0016] Preferably, two slots are vertically arranged on the pile body, the slots of adjacent pile bodies are arranged facing each other, and an outer baffle and a bottom sealing plate are slidably arranged in the slots.

[0017] Preferably, the angle between the groove surfaces of the two grooves of the pile body ranges from 0 degrees to 90 degrees.

[0018] Preferably, the foundation baffle further comprises a baffle, which is fixed on the top of the sliding plate body, and the cross-sectional area of ​​the baffle is larger than the groove surface area of ​​the sliding groove on the inner baffle.

[0019] Preferably, the outer baffle and the inner baffle are fixedly connected together via a rib plate, and the rib plate is located in the waterproof space.

[0020] The technical solution of this application has at least the following advantages and beneficial effects:

[0021] In the utility model, by setting the pile body and the bottom cover plate, multiple positioning piles can be quickly set in a rapid river, and the bottom cover plate with a smaller plate surface area can be used to connect and position the multiple positioning piles to maintain the shape of the cofferdam;

[0022] In the utility model, by arranging an outer baffle that can be slidably arranged on the positioning pile, the outer baffle can be quickly inserted into the positioning pile without worrying about the outer baffle being bent by the impact of water flow during insertion;

[0023] In the utility model, an inner baffle is provided to form a waterproof space between the inner baffle and the outer baffle, and a waterproof medium is poured in to seal and waterproof. A buffer interlayer is provided in the gap between the inner baffles. The buffer interlayer and the waterproof medium work together to block the impact force of the external rapids. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural diagram of the present utility model.

[0025] Figure 2 It is a schematic diagram of the top structure of the utility model.

[0026] Figure 3 It is a schematic cross-sectional structural diagram of the present utility model.

[0027] Figure 4 It is a schematic cross-sectional structural diagram of the foundation baffle in the utility model.

[0028] Figure 5 This is a structural diagram of the utility model from another angle.

[0029] In the figure: 1- positioning pile, 101- pile body, 102- slot, 103- positioning nail, 2- outer baffle, 3- bottom cover plate, 4- inner baffle, 5- buffer interlayer, 6- foundation baffle, 601- sliding plate, 602- block, 603- foundation plug plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following figures. Therefore, once an item is defined in one figure, it does not require further definition or explanation in subsequent figures. Terms such as "center," "upper," "lower," "inner," and "outer" indicate positions or locations based on the positions or locations shown in the figures, or the positions or locations in which the product is typically placed when in use. These terms are used solely for ease of description and simplification of the present application. They do not indicate or imply that the device or component referred to must have a specific position, be constructed, or operate in a specific orientation, and are not to be construed as limiting the present application. It should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "mounted," and "connected" should be interpreted broadly. For example, they can refer to fixed, removable, or integral connections; mechanical or electrical connections; direct connections or indirect connections through an intermediary; or internal connections between two components. Those skilled in the art will understand the specific meanings of these terms in this application in specific contexts.

[0032] Example

[0033] Please refer to Figure 1-Figure 5 The utility model provides a cofferdam device for water conservancy construction, including a positioning pile 1, an outer baffle 2, a bottom sealing plate 3, an inner baffle 4, a buffer interlayer 5, and a foundation baffle 6.

[0034] Furthermore, a plurality of positioning piles 1 are set in the water, with the bottoms of the positioning piles 1 inserted into the underwater foundation, and the spacing between adjacent positioning piles is consistent, thereby arranging them into a regular shape.

[0035] An outer baffle 2 is vertically slidably provided between adjacent positioning piles 1, and a bottom sealing plate 3 is vertically slidably provided between adjacent positioning piles 1. The bottom sealing plate 3 is located between the outer baffle 2 and the foundation surface and is inserted into the foundation.

[0036] Preferably, a plurality of positioning piles 1 arranged in a regular shape are inserted into the water, and then the bottom sealing plate 3 is vertically driven into the bottom of the positioning pile 1 and inserted into the foundation. At this time, the plurality of positioning piles 1 can be connected together to form a whole, which increases its stability while preventing the water flow from impacting and tilting each positioning pile 1, resulting in the inability to accurately drive the outer baffle 2 into the positioning pile 1 subsequently. After the positioning pile 1 is stabilized by the bottom sealing plate 3, the plurality of outer sealing plates are vertically driven into the adjacent positioning piles 1 in turn to form the outermost cofferdam structure.

[0037] Preferably, the cofferdam shape is quickly positioned by using positioning piles 1 with a smaller water flow blocking area, and then the positioning piles 1 are connected and stabilized by using the bottom sealing plate 3 with a smaller board surface area. At this time, the outer baffle 2 with a smaller board surface is driven into the positioning piles 1. The entire outer cofferdam process has very little interception resistance to the water flow, so that the device can perform cofferdam work in rapid water.

[0038] In addition, by setting different numbers of positioning piles 1, cofferdams of different shapes can be arranged to facilitate different construction projects, wherein the shape formed by combining multiple positioning piles 1 can be rectangular or polygonal (pentagonal or hexagonal).

[0039] Furthermore, an inner baffle 4 is installed inside the outer baffle 2. A waterproof space is defined between the outer baffle 2 and the inner baffle 4, and a waterproof medium is placed in the waterproof space. After the inner baffle 4 is installed, the waterproof medium can be poured into the waterproof space to prevent water from entering the inner cofferdam. The waterproof medium can be sand or soil.

[0040] Furthermore, a buffer interlayer 5 is provided between adjacent inner baffles 4 , and the buffer interlayer 5 is an elastic structure.

[0041] Preferably, when external water flow impacts the outer cofferdam and the inner cofferdam, part of the impact force generated by the water flow will be applied to the inner baffle 4, and the buffer interlayer 5 between the inner baffles 4 can provide elastic deformation to absorb part of the impact force and improve the stability of the cofferdam structure.

[0042] In this embodiment, a sliding groove is vertically penetrated on the inner baffle plate 4, and a foundation baffle plate 6 is vertically slidably arranged in the sliding groove.

[0043] Specifically, the foundation baffle 6 includes a sliding plate body 601, a block 602 and a foundation plug plate 603. The sliding plate body 601 is slidably set in the sliding groove of the inner baffle 4. The top of the sliding plate body 601 is fixedly provided with a block 602. The bottom of the sliding plate body 601 is fixedly connected to the foundation plug plate 603. The foundation plug plate 603 is vertically inserted in the foundation.

[0044] During the normal cofferdam construction process, the double-layer baffle and waterproof medium can prevent the water flow on the foundation from entering the inner cofferdam. However, the water flow in the foundation will seep into the bottom foundation of the inner cofferdam. Therefore, it is necessary to dig the foundation inside the inner cofferdam and then pour water-proof concrete to isolate the internal foundation from water seepage while also pouring the cofferdam foundation. In this process, the inner baffle 4 needs to be fixed to prevent the inner baffle 4 from tipping over when digging the internal foundation.

[0045] When digging the inner foundation, the foundation baffle 6 is inserted into the slide groove of the inner baffle 4, and the foundation plug plate 603 is inserted into the foundation. While fixing the inner baffle 4, the surface of the foundation plug plate 603 can also prevent the external foundation soil from sinking into the inner foundation after digging. The block 602 can prevent the top of the sliding plate body 601 from sliding into the slide groove, avoiding subsequent difficulty in pulling it out of the slide groove.

[0046] In this embodiment, the positioning pile 1 includes a pile body 101 , a slot 102 and a positioning pin 103 .

[0047] Specifically, the pile body 101 is vertically arranged in water, and a positioning nail 103 is fixedly arranged at the bottom of the pile body 101, and the positioning nail 103 is inserted into the foundation.

[0048] Two clamping grooves 102 are vertically arranged on the pile body 101 , and the clamping grooves 102 of adjacent pile bodies 101 are arranged to face each other. An outer baffle plate 2 and a bottom sealing plate 3 are slidably arranged in the clamping grooves 102 .

[0049] The nail surface of the positioning nail 103 is convenient for inserting into the foundation, and the slot 102 on the positioning nail 103 allows it to be quickly inserted into the outer baffle 2 after being driven into the foundation to form a water retaining cofferdam.

[0050] The included angles of the two slots 102 of the pile body 101 applied to cofferdams of different shapes also change accordingly. The included angles of the two slots 102 of the pile body 101 range from 0 degrees to 90 degrees.

[0051] Through different groove surface angles, outer baffles 2 with different angles can be inserted into the slide groove of the pile body 101 to form different cofferdam shapes.

[0052] In this embodiment, the outer baffle 2 and the inner baffle 4 are fixedly connected by ribs, which are located in the waterproof space. When the outer baffle 2 is quickly inserted into the pile body 101, the inner baffle 4 is also simultaneously placed into the cofferdam via the ribs, forming the initial cofferdam shape and improving work efficiency.

[0053] Thus far, various embodiments of the present invention have been described in detail. To avoid obscuring the concept of the present invention, some details known in the art have been omitted. Based on the above description, those skilled in the art will fully understand how to implement the technical solutions of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A cofferdam device for water conservancy construction, comprising positioning piles (1), characterized in that: The plurality of positioning piles (1) are arranged in water, the bottoms of the positioning piles (1) are inserted into the underwater foundation, and the spacing between adjacent positioning piles is consistent; An outer baffle (2) is vertically slidably provided between adjacent positioning piles (1), and a bottom sealing plate (3) is vertically slidably provided between adjacent positioning piles (1), wherein the bottom sealing plate (3) is located between the outer baffle (2) and the foundation surface; An inner baffle (4) is provided inside the outer baffle (2), a waterproof space is provided between the outer baffle (2) and the inner baffle (4), and a waterproof medium is provided in the waterproof space; A buffer interlayer (5) is provided between the adjacent inner baffles (4), and the buffer interlayer (5) is an elastic structure.

2. A cofferdam device for water conservancy construction according to claim 1, characterized in that: The inner baffle (4) is provided with a chute running vertically through it, and a foundation baffle (6) is provided in the chute for vertical sliding; The foundation baffle (6) comprises a sliding plate body (601) and a foundation plugging plate (603). The sliding plate body (601) is slidably arranged in the sliding groove of the inner baffle (4). The bottom of the sliding plate body (601) is fixedly connected with the foundation plugging plate (603). The foundation plugging plate (603) is vertically inserted into the foundation.

3. A cofferdam device for water conservancy construction according to claim 1, characterized in that: The positioning pile (1) comprises a pile body (101), a slot (102) and a positioning pin (103); The pile body (101) is vertically arranged in water, and a positioning nail (103) is fixedly arranged at the bottom of the pile body (101), and the positioning nail (103) is inserted into the foundation; Two clamping grooves (102) are vertically arranged on the pile body (101), the clamping grooves (102) of adjacent pile bodies (101) are arranged facing each other, and an outer baffle (2) and a bottom sealing plate (3) are slidably arranged in the clamping grooves (102).

4. A cofferdam device for water conservancy construction according to claim 3, characterized in that: The included angle of the groove surfaces of the two clamping grooves (102) of the pile body (101) ranges from 0 degrees to 90 degrees.

5. A cofferdam device for water conservancy construction according to claim 2, characterized in that: The foundation baffle (6) further comprises a baffle (602) which is fixed on the top of the sliding plate body (601). The cross-sectional area of ​​the baffle (602) is larger than the groove surface area of ​​the sliding groove on the inner baffle (4).

6. A cofferdam device for water conservancy construction according to claim 1, characterized in that: The outer baffle (2) and the inner baffle (4) are fixedly connected together via a rib plate, and the rib plate is located in the waterproof space.

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