A reusable temporary sealing device for post-pouring strips

Abstract

A reusable temporary sealing device for post-cast strips includes a metal cover plate, a keel frame, a sleeve, and a lifting and fixing rod. The keel frame is welded above the reinforcing bars of the post-cast strip. A through-hole sleeve is vertically installed at the center of the keel frame. The metal cover plates are placed one by one above the upper keel frame of the post-cast strip according to the positioning lines. The connecting parts of the metal cover plates are processed into insert-shaped folded edges. The metal cover plates are connected at the insert-shaped folded edges by C-shaped flat inserts. After connection, a continuous U-shaped weather-resistant rubber strip is installed on the side of the metal cover plate. The metal cover plate is attached to the keel frame and connected by electric welding. A lifting and fixing rod is installed inside the sleeve. The bent part of the lifting and fixing rod hooks to the reinforcing bars of the post-cast strip. The threaded section of the lifting and fixing rod extends upward from the sleeve. This utility model uses a steel keel and metal cover plate structure, which is sturdy, durable, and highly safe. The sealing plate uses a snap-fit ​​connection, and the edges are made of rubber and pre-pressed to fit the structural surface, making it highly adaptable to the field and providing high sealing performance.

Description

Technical Field

[0001] This utility model relates to the field of building and municipal engineering, and in particular to a reusable temporary sealing device for post-pouring strips. Background Technology

[0002] In building and municipal engineering construction, post-cast strips are expansion joints set up during the construction of cast-in-place monolithic reinforced concrete structures to prevent harmful cracks caused by temperature and shrinkage. They need to be sealed with post-cast concrete after a certain aging period to form an integral structure. Since the structure is connected by post-cast strips, the quality of post-cast strip construction is closely related to the overall structural quality. Post-cast strips often have large cross-sections and dense reinforcement, making them particularly prone to debris and garbage accumulation, which is very difficult to clean. Incomplete cleaning will affect the structural quality. Therefore, temporary sealing of post-cast strips is necessary during construction. Current technology often uses brick retaining walls with wooden formwork coverings. However, the formwork material has low strength, and this sealing method is not stable enough, easily creating safety hazards. In addition, wooden formwork will deform and develop gaps when exposed to water and sun, making it difficult to completely seal the post-cast strip. This allows mud, water, and sand to enter the post-cast strip, leading to contamination and corrosion of the reinforcement, decay of the bottom formwork, and other potential problems. Furthermore, cleaning up debris before post-cast strip construction is difficult. This method also often uses disposable materials that cannot be reused, requiring a large amount of manual maintenance and increasing construction costs. Summary of the Invention

[0003] The present invention aims to address the shortcomings of the prior art by providing a reusable temporary sealing device for post-pouring strips, thereby solving the problem that the existing temporary sealing of post-pouring strips using wooden templates is prone to deformation, making it difficult to completely seal the post-pouring strips.

[0004] To achieve the above objectives, this utility model adopts the following technical solution:

[0005] A reusable temporary sealing device for post-cast strip includes a metal cover plate, a keel frame, a sleeve, and a lifting and fixing rod. The keel frame is welded above the reinforcing bars of the post-cast strip. A through-type sleeve is vertically set at the center of the keel frame. The back keels inside the keel frame are all welded to the side wall of the sleeve. The metal cover plate is placed one by one above the upper keel frame of the post-cast strip according to the positioning line. The connection part of the metal cover plate is processed into a strip folded edge. The metal cover plate is connected at the strip folded edge by a C-shaped flat strip. After the connection is completed, a long U-shaped weather-resistant rubber edge strip is installed on the side of the metal cover plate. The metal cover plate is attached to the keel frame and connected by electric welding. A lifting and fixing rod is set inside the sleeve. The bottom end of the lifting and fixing rod is bent and hooked to the reinforcing bars of the post-cast strip. The upper part of the lifting and fixing rod is a threaded section. The threaded section of the lifting and fixing rod passes upward from the sleeve and is threaded with a wing nut.

[0006] The insert has a U-shaped groove structure, and the insert edges on both sides are connected by C-shaped flat inserts.

[0007] The sleeve and the keel frame are provided with an upwardly extending header section, which is 2cm to 3cm high.

[0008] The top of the sleeve has an opening, and the sleeve measures 30mm × 5mm.

[0009] The metal cover plate is made of 1.0mm thick galvanized steel plate, and the folded edge length of the metal cover plate is 14mm to 16mm.

[0010] After the metal cover plate is connected, the edge that contacts the completed cast structure surface is processed with an edge fold, and a rubber edge strip is fitted on the edge fold. The edge fold length is 28mm to 32mm.

[0011] The keel frame is made of steel bars with a diameter of 8mm.

[0012] The lifting and fixing rod is made of steel bar with a diameter of 14mm.

[0013] The beneficial effects of this utility model are: This utility model adopts a steel keel and metal cover plate structure, which is sturdy and durable, and has high safety. The sealing plate adopts a snap-lock connection, and the edges are made of rubber and pre-pressed to fit the structural surface. It has strong on-site applicability and high sealing performance. It overcomes the defects of conventional post-pouring strip temporary sealing and covering, which are prone to deformation, displacement and incomplete sealing. It has the advantages of simple structure, convenient installation and repeated reuse. Attached Figure Description

[0014] Figure 1 This is the front view of the present invention;

[0015] Figure 2 This is a top view of the present invention;

[0016] Figure 3 This is a schematic diagram of the metal cover plate connection part of this utility model;

[0017] In the diagram: 1-Metal cover plate; 2-Keel frame; 3-Rubber edge strip; 4-Sleeve; 5-Lifting fixing rod; 6-Wing nut; 7-Post-cast strip reinforcement; 8-Cast structural surface; 9-Insertion strip folded edge; 10-C-shaped flat insertion strip; 11-Edge folded edge

[0018] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] A reusable temporary sealing device for post-cast strips includes a metal cover plate 1, a keel frame 2, a sleeve 4, and a lifting and fixing rod 5. The keel frame 2 is welded above the reinforcing bars 7 of the post-cast strip. A through-type sleeve 4 is vertically installed at the center of the keel frame 2. The back ribs inside the keel frame 2 are all welded to the side wall of the sleeve 4. The metal cover plate 1 is placed one by one above the upper keel frame 2 of the post-cast strip according to the positioning lines. The connecting parts of the metal cover plate 1 are processed into insert strip folded edges 9. The folded edge 9 is connected by C-shaped flat inserts 10. After the connection is completed, a long U-shaped weather-resistant rubber strip 3 is installed on the side of the metal cover plate 1. The metal cover plate 1 is attached to the keel frame 2 and connected by electric welding. A lifting and fixing rod 5 is set inside the sleeve 4. The bottom end of the lifting and fixing rod 5 is bent. The bent part is hooked to the post-cast strip steel bar 7. The upper part of the lifting and fixing rod 5 is a threaded section with threads. The threaded section of the lifting and fixing rod 5 passes upward from the sleeve 4 and is threaded with a wing nut 6.

[0021] The insert edge 9 has a U-shaped groove structure, and the insert edges 9 on both sides are hooked together by C-shaped flat inserts 10.

[0022] The sleeve 4 is provided with an upwardly extending header section at the connection between it and the keel frame 2, and the header section is 2cm to 3cm high.

[0023] The top of the sleeve 4 has an opening, and the dimensions of the sleeve 4 are 30mm × 5mm.

[0024] The metal cover plate 1 is made of 1.0mm thick galvanized steel plate, and the length of the insert fold 9 of the metal cover plate 1 is 14mm to 16mm.

[0025] After the metal cover plate 1 is connected, the edge that contacts the completed cast structure surface 8 is processed with an edge fold 11. A rubber edge strip 3 is fitted on the edge fold 11, and the length of the edge fold 11 is 28mm to 32mm.

[0026] The keel frame 2 is made of steel bars with a diameter of 8mm.

[0027] The lifting and fixing rod 5 is made of steel bar with a diameter of 14mm.

[0028] The steps for on-site installation are as follows:

[0029] (1) Before installing the temporary sealing device for the post-pouring strip, the structural surfaces on both sides of the post-pouring strip need to be cleaned. If there are large pits between the metal cover plate 1 and the completed poured structural surface 8, they need to be filled. Before installation, the positioning line should be marked. Insert the lifting fixing rod 5 into the middle sleeve 4 from bottom to top, and initially tighten the wing nut 6 at the top to prevent the lifting fixing rod 5 from slipping out of the sleeve 4;

[0030] (2) During installation, first place the shaped metal cover plate 1 one by one on the upper side of the post-pouring strip according to the positioning line, and connect them with C-shaped flat inserts 10. After the connection is completed, install the long U-shaped weather-resistant rubber strip 3 on the side of the metal cover plate 1. The rubber strip 3 is about 5cm high.

[0031] (3) Rotate the lifting and fixing rod 5 so that its bent end hooks with the post-cast strip reinforcement 7, and tighten the wing nut 6. When tightening the wing nut 6, the flat end must be clamped to prevent the lifting and fixing rod 5 from rotating. The sleeve 4 is subjected to the vertical pressure of the wing nut 6 and the pressure is dispersed to the edge of the metal cover plate 1 by the arched keel frame 2, so that it fits tightly with the structural surface to form a closed surface and achieve the effects of dustproof, waterproof and foreign object prevention.

[0032] (4) When the device needs to be removed after use, first loosen the wing nut 6, then remove the edge rubber strip 3, and finally take out the C-shaped flat strip 10, and clean, repair and stack them in sections.

[0033] This device is modularly manufactured and installed, with plug-in connection and tension-compression fixing. It is suitable for both horizontal and vertical post-pouring strips and can be reused in multiple locations.

[0034] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A reusable temporary sealing device for post-pouring strips, characterized in that, The system includes a metal cover plate (1), a keel frame (2), a sleeve (4), and a lifting fixing rod (5). The keel frame (2) is welded above the reinforcing bars (7) of the post-cast strip. A through-type sleeve (4) is vertically installed in the center of the keel frame (2). The back keels inside the keel frame (2) are all welded to the side wall of the sleeve (4). The metal cover plate (1) is placed one by one above the keel frame (2) on the upper side of the post-cast strip according to the positioning line. The connecting part of the metal cover plate (1) is processed into a strip folded edge (9). The metal cover plate (1) is located at the strip folded edge (9). The metal cover plate (1) is connected by a C-shaped flat insert (10). After the connection is completed, a long U-shaped weather-resistant rubber strip (3) is installed on the side of the metal cover plate (1). The metal cover plate (1) is attached to the keel frame (2) and connected by electric welding. A lifting fixing rod (5) is set inside the sleeve (4). The bottom end of the lifting fixing rod (5) is bent. The bent part is hooked to the post-cast strip steel bar (7). The upper part of the lifting fixing rod (5) is a threaded section with threads. The threaded section of the lifting fixing rod (5) passes through the sleeve (4) upward and is threaded with a wing nut (6).

2. The reusable temporary sealing device for post-pouring strips according to claim 1, characterized in that, The insert edge (9) has a U-shaped groove structure, and the insert edges (9) on both sides are hooked together by C-shaped flat inserts (10).

3. The reusable temporary sealing device for post-pouring strips according to claim 1, characterized in that, The sleeve (4) is provided with an upwardly extending header section at the connection between it and the keel frame (2), and the header section is 2cm to 3cm high.

4. A reusable temporary sealing device for post-pouring strips according to claim 3, characterized in that, The top of the sleeve (4) has an opening, and the sleeve (4) has a size of 30mm × 5mm.

5. A reusable temporary sealing device for post-pouring strips according to claim 1, characterized in that, The metal cover plate (1) is made of 1.0mm thick galvanized steel plate, and the length of the insert edge (9) of the metal cover plate (1) is 14mm to 16mm.

6. A reusable temporary sealing device for post-pouring strips according to claim 5, characterized in that, After the metal cover plate (1) is connected, the edge that contacts the completed cast structure surface (8) is processed with an edge fold (11). A rubber edge strip (3) is fitted on the edge fold (11), and the length of the edge fold (11) is 28mm to 32mm.

7. A reusable temporary sealing device for post-pouring strips according to claim 1, characterized in that, The keel frame (2) is made of steel bars with a diameter of 8mm.

8. A reusable temporary sealing device for post-pouring strips according to claim 1, characterized in that, The lifting and fixing rod (5) is made of steel bar with a diameter of 14mm.

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