Flat tooth combined type water stop steel plate

Abstract

The utility model provides a flat tooth combined type water stop steel plate, and belongs to the technical field of water stop steel plates. The problem that an existing water stop steel plate is poor in waterproof effect is solved. The flat tooth combined type water stop steel plate comprises a flat-plate-shaped main body located in the middle and wing parts located on the two sides and symmetrically arranged, the wing parts are in a sawtooth shape, and the main body and the two wing parts are formed by bending a steel plate. The flat tooth combined type water stop steel plate has the advantage of being good in waterproof effect.

Description

Technical Field

[0001] The utility model belongs to the technical field of water-stop steel plates and relates to a flat-tooth combined water-stop steel plate. Background Art

[0002] When pouring concrete slabs in large-scale construction projects, it is often necessary to leave a post-casting strip to prevent harmful cracks in cast-in-place reinforced concrete structures due to uneven shrinkage or settlement. However, if the post-casting strip is poured after the initial setting of the concrete, the joints may not be poured tightly, which will form cold joints.

[0003] In order to prevent water from seeping into the cold joint, it is often necessary to horizontally set a waterstop steel plate at the cold joint of the post-casting strip during construction. The existing waterstop steel plate, for example, Chinese patent literature discloses a waterstop steel plate assembly [patent number: 202320495382.4; application publication number: CN219240636U], which includes a first waterstop steel plate, a second waterstop steel plate and a weld. The first waterstop steel plate and the second waterstop steel plate are both composed of a main body and a wing plate. The wing plates are distributed on both sides of the main body and form a certain angle with the main body. One end of the first waterstop steel plate is welded to one end of the second waterstop steel plate as a whole and a weld is formed at the connection position between the two. The waterstop steel plate assembly also includes an auxiliary welding block, which is tightly buckled directly above the weld. The auxiliary welding block is adapted to the contact surface of the first waterstop steel plate and the second waterstop steel plate. A closed annular weld is formed between the edge of the auxiliary welding block and the contact surface of the first waterstop steel plate and the second waterstop steel plate at the bottom, and the annular weld is a full weld.

[0004] The first waterstop steel plate and the second waterstop steel plate of this structure are composed of a main body and wing plates. The wing plates are distributed on both sides of the main body and form a certain angle with the main body, while the main body is a flat plate. This makes the bonding strength between the first waterstop steel plate and the second waterstop steel plate and the poured concrete poor, resulting in gaps and reducing the waterproof effect. Summary of the invention

[0005] The purpose of the utility model is to solve the above problems existing in the prior art and to propose a flat-tooth combined water-stopping steel plate, the technical problem to be solved is how to improve the waterproof effect of the water-stopping steel plate.

[0006] The purpose of the utility model can be achieved through the following technical solutions: a flat-tooth combined water-stop steel plate, comprising a flat-plate-shaped main body located in the middle, characterized in that it also includes wing portions located on both sides and symmetrically arranged, the wing portions are serrated, and the main body and the two wing portions are formed by bending a steel plate.

[0007] The wing of the waterstop steel plate is serrated, so that part of the concrete can be embedded in the inside of the wing, so that the waterstop steel plate can better adapt to the contraction and expansion of the concrete, and the combination of the waterstop steel plate and the concrete is better, thereby improving the waterproof effect of the waterstop steel plate. At the same time, the wing is serrated, forming multiple waterstop surfaces arranged continuously up and down, further improving the waterproof effect. The main body is located in the middle and is flat, ensuring the overall strength of the waterstop steel plate. The main body and the two wings are formed by bending a steel plate, making the waterstop steel plate easy to process and form.

[0008] In the above-mentioned flat-tooth combined waterproof steel plate, along the horizontal direction, the width of the main body and the width of each wing are the same. This structure reasonably arranges the width of the main body and the wing, so that the waterproof steel plate has sufficient strength and sufficient waterproof effect.

[0009] In the above-mentioned flat-tooth combined water-stopping steel plate, the thickness of the main body and the wing portion are both between 2-4 mm. This structure enables the water-stopping steel plate to have sufficient strength.

[0010] In the above-mentioned flat-tooth combined water-stopping steel plate, the main body and the wing parts are both made of low-carbon steel, so that the water-stopping steel plate has good corrosion resistance and strength.

[0011] In the above-mentioned flat-tooth combined water-stop steel plate, the concrete structure includes a post-cast strip and pre-cast concrete located on both sides of the post-cast strip, the center line of the main body is set along the boundary line between the post-cast strip and the pre-cast concrete, the water-stop steel plate is located in the middle of the post-cast strip along the vertical direction, one of the wings is located in the post-cast strip, and the other wing is located in the pre-cast concrete. This structure reasonably arranges the position of the water-stop steel plate, so that the water-stop steel plate can better connect the post-cast strip and the pre-cast concrete, improve the strength of the concrete structure, and at the same time ensure the same waterproof effect on both sides, thereby improving the waterproof effect of the water-stop steel plate.

[0012] In the above-mentioned flat-tooth combined waterproof steel plate, the first cast concrete includes a waterproof part protruding downward, the waterproof part is located directly below the post-cast strip, and there is a waterproof caulking between the two waterproof parts, and the waterproof caulking is filled with oil embedding paste. This structure is equivalent to setting another waterproof structure below the waterproof steel plate, and first waterproofing is performed through the waterproof caulking and oil embedding paste to improve the waterproof effect.

[0013] In the above-mentioned flat-tooth combined waterproof steel plate, the width of the waterproof caulking is much smaller than the width of the post-casting strip, and the waterproof caulking is located directly below the center of the post-casting strip. This structure is reasonably designed and improves the waterproof effect; for example, if the width of the post-casting strip is one meter, the width of the waterproof caulking can be three centimeters.

[0014] In the above-mentioned flat-tooth combined water-stop steel plate, a bottom plate cushion is provided directly below the concrete structure, a waterproof layer is provided between the bottom plate cushion and the concrete structure, a water stop strip is provided in the waterproof layer, the water stop strip is located directly below the water stop caulking, and the width of the water stop strip is much greater than the width of the water stop caulking. In this structure, the waterproof layer has a waterproof effect, and the water stop strip also has a waterproof effect. The water stop strip prevents water from entering the water stop caulking, further improving the waterproof effect. The water stop strip is made of rubber material; for example, the width of the water stop caulking is three centimeters, and the width of the water stop strip is fifty centimeters.

[0015] Compared with the prior art, the flat-tooth combined water-stop steel plate provided by the utility model has the following advantages:

[0016] 1. The wing of the waterstop steel plate is serrated, so that the waterstop steel plate can better adapt to the contraction and expansion of concrete, and the combination effect of the waterstop steel plate and concrete is better, thereby improving the waterproof effect of the waterstop steel plate.

[0017] 2. The wing of the water-stop steel plate is serrated, forming multiple water-stop surfaces arranged continuously up and down to improve the waterproof effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the waterstop steel plate.

[0019] Figure 2 This is the main view of the overall structure of the waterstop steel plate.

[0020] Figure 3 This is a status diagram of the waterstop steel plate when used in a construction environment.

[0021] In the figure, 1, main body; 2, wing; 3, post-cast strip; 4, first poured concrete; 41, waterproof part; 5, water-stop caulking; 6, embedding paste; 7, bottom plate cushion; 8, waterproof layer; 9, water-stop strip. DETAILED DESCRIPTION

[0022] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0023] like Figure 1 , Figure 2 As shown, the flat-tooth combined water-stop steel plate includes a main body 1 and two wing portions 2.

[0024] The main body 1 is in the shape of a flat plate and is located in the middle. The two wings 2 are in the shape of a sawtooth. The two wings 2 are located on both sides of the main body 1 and are symmetrically arranged. In the horizontal direction, the width of the main body 1 and the width of each wing 2 are the same. The main body 1 and the two wings 2 are formed by bending a steel plate. The main body 1 and the wings 2 are both made of low-carbon steel. In this embodiment, the thickness of the main body 1 and the wings 2 is 3 mm. In actual production, the thickness of the main body 1 and the wings 2 can be 2 mm or 4 mm.

[0025] like Figure 3 As shown, the concrete structure includes a post-cast strip 3 and pre-cast concrete 4 located on both sides of the post-cast strip 3, the center line of the main body 1 is set along the dividing line between the post-cast strip 3 and the pre-cast concrete 4, the waterstop steel plate is located in the middle of the post-cast strip 3 in the vertical direction, one of the wings 2 is located in the post-cast strip 3, and the other wing 2 is located in the pre-cast concrete 4.

[0026] The first cast concrete 4 includes a waterproof portion 41 protruding downward, and a portion of the waterproof portion 41 is located directly below the post-cast strip 3. A water-stop caulking 5 is provided between the two waterproof portions 41, and the water-stop caulking 5 is filled with caulking paste 6. The width of the water-stop caulking 5 is much smaller than the width of the post-cast strip 3, and the water-stop caulking 5 is located directly below the center of the post-cast strip 3.

[0027] A base plate cushion 7 is provided directly below the concrete structure, a waterproof layer 8 is provided between the base plate cushion 7 and the concrete structure, and a waterstop strip 9 is provided in the waterproof layer 8. The waterstop strip 9 is located directly below the waterstop joint 5, and the width of the waterstop strip 9 is much greater than the width of the waterstop joint 5.

[0028] During construction, steel bars are laid in the first poured concrete 4 and the post-cast strip 3, and then the waterstop steel plate is fixed in the set position. After the first poured concrete 4 solidifies, the post-cast strip 3 is poured after a set time, so that the waterstop steel plate is embedded in the first poured concrete 4 and the post-cast strip 3.

[0029] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0030] Although the terms such as main body 1, wing 2, post-cast strip 3, pre-cast concrete 4, waterproof part 41, water-stop caulking 5, oil-filled paste 6, bottom plate cushion 7, waterproof layer 8, water-stop strip 9 are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A flat-tooth combined water-stop steel plate, comprising a main body (1) located in the middle and in a flat plate shape, characterized in that: It also comprises wing portions (2) located on both sides and arranged symmetrically, wherein the wing portions (2) are sawtooth-shaped, and the main body (1) and the two wing portions (2) are formed by bending a steel plate.

2. A flat-tooth combined water-stop steel plate according to claim 1, characterized in that: In the horizontal direction, the width of the main body (1) and the width of each wing (2) are the same.

3. The flat-tooth combined water-stop steel plate according to claim 1, characterized in that: The thickness of the main body (1) and the wing (2) are both between 2 and 4 mm.

4. A flat-tooth combined water-stop steel plate according to claim 1, 2 or 3, characterized in that: The main body (1) and the wing (2) are both made of low carbon steel.

5. A flat-tooth combined water-stop steel plate according to claim 1, 2 or 3, characterized in that: The concrete structure comprises a post-cast strip (3) and pre-cast concrete (4) located on both sides of the post-cast strip (3); the center line of the main body (1) is arranged along the boundary line between the post-cast strip (3) and the pre-cast concrete (4); the water stop steel plate is located in the middle of the post-cast strip (3) in the vertical direction; one of the wings (2) is located in the post-cast strip (3) and the other wing (2) is located in the pre-cast concrete (4).

6. The flat-tooth combined water-stop steel plate according to claim 5, characterized in that: The first cast concrete (4) comprises a waterproof portion (41) protruding downward, wherein the waterproof portion (41) is partially located directly below the post-cast strip (3), and a water-stopping caulking joint (5) is provided between two of the waterproof portions (41), wherein the water-stopping caulking joint (5) is filled with caulking paste (6).

7. The flat-tooth combined water-stop steel plate according to claim 6, characterized in that: The width of the water-stopping caulking joint (5) is much smaller than the width of the post-casting strip (3), and the water-stopping caulking joint (5) is located directly below the center of the post-casting strip (3).

8. The flat-tooth combined water-stop steel plate according to claim 6, characterized in that: A base plate cushion layer (7) is provided directly below the concrete structure, a waterproof layer (8) is provided between the base plate cushion layer (7) and the concrete structure, a water stop strip (9) is provided in the waterproof layer (8), and the water stop strip (9) is located directly below the water stop caulking (5), and the width of the water stop strip (9) is much greater than the width of the water stop caulking (5).

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