An adjustable angle water stop steel plate connecting structure for post-pouring belt corner

Abstract

The utility model relates to a adjustable angle type waterstop steel sheet connecting structure for post-poured belt corner, belongs to post-poured belt waterstop technical field, it includes two waterstop steel sheets in corner, two waterstop steel sheets are connected through flexible connecting piece angle adjustable between, the connecting part that is connected with waterstop steel plate corresponding side is set up on flexible connecting piece, the sealing structure that is used for assembling sealing of waterstop steel plate is equipped in connecting part, its outside is equipped with the fastener that is used for pressing tightly fixed connecting part with waterstop steel plate, the utility model discloses two independent waterstop steel sheets through flexible connecting piece connection, realizes the corner angle adjustable in certain angle, can nimblely adapt to the need of waterstop steel sheet setting of different working condition post-poured belt corner, can strengthen the connection between waterstop steel plate and connecting part based on the design of fastener, inverted tooth structure etc.

Description

Technical Field

[0001] This utility model belongs to the field of post-cast strip water-stop technology, specifically relating to an adjustable angle water-stop steel plate connection structure for the corner of post-cast strip. Background Technology

[0002] In construction engineering, post-cast strips are a key structural measure to address shrinkage deformation, temperature stress, and uneven settlement in ultra-long concrete structures. To ensure the reliability of waterproofing at post-cast strips, current standards generally require the installation of water-stop steel plates within the post-cast strips of structural base slabs or exterior walls. Water-stop steel plates are typically metal plates with a central raised structure, which extend the seepage path to achieve waterproofing. However, when post-cast strips need to bend to form corners (such as external corners, internal corners, or arbitrary angles), the current conventional practice is mainly to use factory-prefabricated rigid corner pieces with standard angles, or to cut and weld straight sections of water-stop steel plates on-site to assemble the required angle. The former, prefabricated corner pieces, are only suitable for a certain angle and cannot be adjusted according to actual working conditions; the latter, on-site cutting and welding, requires a high level of technical skill from the operators and cannot guarantee construction quality. Furthermore, both prefabricated components and on-site welding create rigid connections. This connection method is difficult to effectively absorb the drying shrinkage, creep, and slight settlement deformation that may occur during use of concrete. There is a risk that the concrete at the joint may crack due to excessive deformation stress, which will affect the overall water-stopping effect of the post-cast strip. Utility Model Content

[0003] To address the aforementioned problems in the existing technology, the purpose of this utility model is to provide an adjustable angle waterstop steel plate connection structure for the corner of the post-pouring strip, which can adapt to different corner angles, ensure construction quality, and has a certain deformation adaptability.

[0004] This utility model provides the following technical solution: an adjustable angle waterstop steel plate connection structure for the corner of a post-pouring strip, comprising two waterstop steel plates located at the corner, the two waterstop steel plates being connected at an adjustable angle by a flexible connector; the flexible connector is provided with a connecting part that connects to the corresponding side of the waterstop steel plate, the connecting part is provided with a sealing structure for assembling and sealing the waterstop steel plate, and fasteners are provided on its outer side for pressing and fixing the connecting part and the waterstop steel plate.

[0005] Furthermore, the flexible connector includes a flexible body, a connecting part disposed on the flexible body, and a slot provided on the connecting part that matches the cross-sectional shape of the waterstop steel plate, with one side of the waterstop steel plate being inserted into the corresponding slot.

[0006] Furthermore, the sealing structure is installed inside the slot and adopts a two-stage sealing structure, including an elastic sealing strip fixed inside the slot and a water-swellable rubber strip pre-embedded inside the slot.

[0007] Furthermore, the inner wall of the slot is provided with a toothed structure for limiting the water-stop steel plate.

[0008] Furthermore, the outer sides of the main body and the connecting parts are covered with a corrosion-resistant alloy layer; the outer surface of the corrosion-resistant alloy layer is a burr surface.

[0009] Furthermore, the fastener is a stainless steel band, and the connecting part is...

[0010] By adopting the above-mentioned technology, the beneficial effects of this utility model compared with the prior art are as follows: 1) In this utility model, two independent waterstop steel plates are connected by a flexible connector, thereby achieving adjustable corner angle within a certain angle, which can flexibly adapt to the needs of waterstop steel plate setting at the corner of the post-pouring strip under different working conditions. 2) In this utility model, the design of fasteners, toothed structures and other structures can strengthen the connection between the waterstop steel plate and the connecting part. With the help of the set secondary sealing structure, the stability and sealing of the connection are guaranteed. 3) In this utility model, based on the design of the corrosion-resistant alloy layer and its rough outer surface (burr surface), the flexible connector is protected while the bonding force between the flexible connector and the concrete is improved during the pouring process. Attached Figure Description

[0011] Figure 1 This is a top view of the corner connection structure of this utility model; Figure 2 This is a schematic diagram of the folded structure of one embodiment of the flexible connector in this utility model; Figure 3 This is a schematic diagram of the structure of the flexible connector in its unfolded state, according to another embodiment of the present invention. Figure 4 This is a schematic diagram of the reverse tooth structure of this utility model; Figure 5 This is a schematic diagram of a conventional waterstop steel plate. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0013] Conversely, this utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model as defined in the claims. Furthermore, to provide the public with a better understanding of this utility model, certain specific details are described in detail below. However, those skilled in the art will fully understand this utility model even without these detailed descriptions.

[0014] See Figures 1-5 An adjustable-angle waterstop steel plate connection structure for corners of post-cast strips is mainly used to solve the problem of flexible waterproof connection at corners of basement floor slabs or exterior wall post-cast strips. It includes two sections of waterstop steel plates 1 for the corner, a flexible connector 2 connecting the two sections of waterstop steel plates 1, and fasteners 3 (using stainless steel hoops).

[0015] Specifically, the waterstop steel plate 1 is made of Q235B steel plate with a thickness of 3mm and a width of 300mm, and has a "U" shaped cross section. The joints at both ends are flattened to facilitate assembly with the flexible connector 2.

[0016] Specifically, the flexible connector 2 is made of ethylene propylene diene monomer (EPDM) rubber and is formed by one-time casting through a mold. It includes a flexible body 201 and two connecting parts 202 disposed on the outside of the flexible body 201.

[0017] The flexible body 201 serves as the main structure of the connector and is in the shape of a hollow cylinder.

[0018] A slot 2021 is provided on the connecting part 202. The cross-sectional shape of the slot 2021 matches the "U" shaped cross-section of the waterstop steel plate 1 to form a socket interface. The end of the waterstop steel plate 1 is inserted into the slot 2021 through a transition fit.

[0019] The connecting part 202 is provided with a sealing structure for assembling and sealing the water-stop steel plate 1; the sealing structure is a two-stage sealing structure; the first stage seal is an elastic sealing strip (such as a silicone rubber strip) fixed on the groove wall for initial physical sealing; the second stage seal is a water-swellable rubber strip pre-embedded in the groove wall as an active seal, which can automatically compact the gap after it comes into contact with water and expands in volume.

[0020] The inner wall of the slot 2021 is molded with continuous inverted tooth-shaped protrusions. When the waterstop steel plate 1 is inserted, the inverted tooth structure can provide a one-way locking effect, effectively preventing the waterstop steel plate from being pulled out or loosened during the concrete pouring process.

[0021] The outer side of the connecting part 202 is provided with an arc structure 2022, which facilitates the winding and application of force by the stainless steel band.

[0022] As a preferred embodiment, a thin aluminum-magnesium alloy layer is coated onto the outer surface of the flexible body 201 (this can be achieved through a coating process). The outer surface of this alloy layer is treated with a roughened surface (i.e., roughening treatment), which can enhance the adhesion between the flexible connector 2 and the subsequently poured concrete.

[0023] Fastener 3: Bolt-tightening clamp made of high-strength 304 stainless steel. The clamp width is not less than 30mm and can withstand the specified torque.

[0024] The construction process for the structure in this embodiment is as follows: S1. On-site positioning and preparation: According to the design drawings, measure and lay out the lines at the corner of the post-pouring strip to determine the placement position of the two sections of waterstop steel plate 1.

[0025] S2. Install flexible connector 2: S2.1. Place the flexible connector 2 at the corner position.

[0026] S2.2. Insert the ends of the two waterstop steel plates 1 on the corresponding sides into the slots 2021 of the flexible connector 2 respectively.

[0027] S2.3. Tap the waterstop steel plate 1 to fully insert it into place. During this process, the counter-tooth structure inside the slot will hold the steel plate surface, providing initial fixation, while the secondary sealing structure begins to function.

[0028] S3. Based on the design of the overall flexible structure of the flexible connector 2, the included angle of the two waterstop steel plates 1 can be manually adjusted within a certain angle range. After the adjustment is completed, the entire structure is placed in the set position using temporary support steel bars.

[0029] S4. Wrap the stainless steel band around the flexible connector 2, tighten the bolts of the band, and press the internal sealing structure.

[0030] S5. Concrete pouring: Tie the reinforcing bars on both sides of the post-pouring strip according to conventional construction procedures, set up the formwork, and then pour the concrete.

[0031] S6. Post-cast strip: After the main structure has settled and stabilized, the post-cast strip concrete shall be poured according to the design requirements.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An adjustable-angle waterstop steel plate connection structure for corners of post-cast strips, characterized in that, It includes two water-stop steel plates (1) located at the corner, and the two water-stop steel plates (1) are connected by a flexible connector (2) with adjustable angle; the flexible connector (2) is provided with a connecting part (202) connected to the corresponding side of the water-stop steel plate (1), the connecting part (202) is provided with a sealing structure for assembling and sealing the water-stop steel plate (1), and the outside of it is provided with fasteners (3) for pressing and fixing the connecting part (202) and the water-stop steel plate (1).

2. The adjustable-angle waterstop steel plate connection structure for the corner of a post-cast strip according to claim 1, characterized in that, The flexible connector (2) includes a flexible body (201) and a connecting part (202) disposed on the flexible body (201). The connecting part (202) is provided with a slot (2021) that matches the cross-sectional shape of the waterstop steel plate (1). One side of the waterstop steel plate (1) is inserted into the corresponding slot (2021).

3. The adjustable-angle waterstop steel plate connection structure for the corner of a post-cast strip according to claim 2, characterized in that, The sealing structure is installed in the slot (2021) and adopts a two-stage sealing structure, including an elastic sealing strip fixed in the slot (2021) and a water-swellable rubber strip pre-embedded in the slot (2021).

4. The adjustable angle waterstop steel plate connection structure for the corner of a post-cast strip according to claim 3, characterized in that, The inner wall of the slot (2021) is provided with a toothed structure for limiting the water-stop steel plate (1).

5. The adjustable-angle waterstop steel plate connection structure for the corner of a post-cast strip according to claim 3, characterized in that, The outer sides of the main body (201) and the connecting part (202) are covered with a corrosion-resistant alloy layer; the outer surface of the corrosion-resistant alloy layer is a burr surface.

6. An adjustable-angle waterstop steel plate connection structure for corners of post-cast strips according to any one of claims 1-5, characterized in that, The fastener (3) is a stainless steel band, and the connecting part (202) is provided with an arc structure (2022) to facilitate the binding of the stainless steel band.

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