Splicing prestressed steel strand penetrating foundation platform waterproof device

Abstract

The utility model provides a splicing prestressed steel strand penetrating foundation bearing platform waterproof device which comprises metal outer pipes, two ends of each metal outer pipe are respectively provided with an embedded buckle and a convex buckle, the metal outer pipes are connected through rotating butt joint of the embedded buckles and the convex buckles, and the metal outer pipes are internally provided with prestressed sleeve inner walls. And the metal outer pipes are spliced to form the waterproof sleeve, the positions, close to the two ends, of the waterproof sleeve are each provided with two horn-shaped water stop wing rings, the horn mouths of the water stop wing rings face the water facing direction, the multiple water stop effect is achieved, and the leakage risk is greatly reduced. The utility model has the advantages of simple assembly, convenient operation, safety, stability and excellent waterproof effect, can be used in the concrete pouring construction of the foundation slab, synchronously constructs the prestressed steel strand for one-step forming, prevents the risk of increasing the leakage of the slab due to the penetration of the slab and the bearing platform, saves the construction period, and improves the work efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of waterproof device design, and particularly relates to a waterproof device capable of splicing prestressed steel strands through a foundation cap. Background Art

[0002] In the foundation pit system involving single- and double-layer basement structures, cables containing prestressed steel strand systems will be used to anchor some cantilever piles to provide a measure to offset the lateral soil pressure. In order to ensure the safety of the foundation pit, the top elevation of the cantilever support piles on the side of the negative second floor is below the bottom plate of the negative first floor, and only a 300-500mm thick soil layer is reserved as the isolation between the support system and the main structure. The design depth of the foundation pedestal is generally more than 500mm, so when the prestressed steel strands are set up, they will inevitably pass through the foundation pedestal, which will have a greater impact on the waterproofing of the basement floor and increase the risk of leakage. Therefore, it is urgent to design a waterproof device that can splice prestressed steel strands through the foundation pedestal to solve the above leakage problem. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a waterproof device for splicing prestressed steel strands through foundation pedestals, which solves the problem of significant leakage risk to the base plate when the prestressed steel strands pass through the foundation base plate when constructed using traditional methods. At the same time, the device is simple to assemble, easy to operate, safe and stable, and has excellent waterproof effect.

[0004] The utility model achieves the above technical objectives through the following technical means.

[0005] A waterproof device for splicing prestressed steel strands through foundation pedestals comprises a waterproof casing, which is formed by connecting a plurality of metal outer tubes to each other. Two water-stop wing rings are arranged near both ends of the waterproof casing. The metal outer tube is made of metal and the inner wall of the built-in prestressed casing is used to isolate the metal outer tube so that there is no interference when stress is applied to the built-in prestressed steel strands.

[0006] Furthermore, the metal outer tubes are fixed by rotationally docking an embedded buckle and an external buckle, wherein an embedded buckle and an external buckle are respectively installed at both ends of the metal outer tube, and both the embedded buckle and the external buckle are annular structures, and three slots are provided on one side of the embedded buckle, and three protrusions matching the slots are provided on one side of the external buckle.

[0007] Furthermore, the water-stop wing ring is of a trumpet-shaped structure, and the trumpet mouth of the water-stop wing ring faces the water-heading direction.

[0008] The utility model has the following beneficial effects:

[0009] This device is simple to assemble, easy to operate, safe and stable, and has excellent waterproof effect. It can be used as a one-time forming device for the simultaneous construction of prestressed steel strands during the pouring of foundation slab concrete, to prevent the risk of base plate leakage caused by passing through the base plate and pedestal, while also saving construction time and improving work efficiency. The waterproof device that can splice prestressed steel strands through the foundation pedestal can efficiently solve the problem of the risk of base plate structure leakage caused by prestressed steel strands passing through the foundation pedestal. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is the overall effect diagram of the waterproof device for splicing prestressed steel strands through the foundation cap described in the utility model;

[0011] Figure 2 This is a structural exploded view of the waterproof device for splicing prestressed steel strands through foundation caps described in the utility model;

[0012] Figure 3 It is a front view of the waterproof device for splicing prestressed steel strands through foundation caps of the utility model;

[0013] Figure 4 It is a right view of the waterproof device for splicing prestressed steel strands through foundation caps of the utility model;

[0014] Figure 5 It is a schematic diagram of the embedded buckle and the external convex buckle of the waterproof device for splicing prestressed steel strands through the foundation cap described in the utility model;

[0015] Figure 6 This is a schematic diagram of the water-stopping direction of the spliced ​​prestressed steel strands passing through the foundation pedestal waterproofing device described in the utility model.

[0016] In the figure: 1-embedded buckle, 2-external convex buckle, 3-metal outer tube, 4-inner wall of prestressed casing, 5-water stop wing ring. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0018] like Figures 1 to 3 As shown, the waterproof device for splicing prestressed steel strands through foundation pedestals described in the utility model includes an embedded buckle 1, an external convex buckle 2, a metal outer tube 3, an inner wall of a prestressed casing 4, and a water-stop wing ring 5.

[0019] like Figure 1 , 5As shown, the embedded buckle 1 and the convex buckle 2 are a pair of buckles that can be rotatably connected. Specifically, the embedded buckle 1 and the convex buckle 2 are both annular structures. Three slots are provided on one side of the embedded buckle 1, and three protrusions matching the slots are provided on one side of the convex buckle 2. The embedded buckle 1 and the convex buckle 2 are respectively installed at both ends of the metal outer tube 3. In actual use, when the two metal outer tubes 3 are connected to each other, one of the metal outer tubes 3 is rotated so that the protrusion of the convex buckle 2 at one end thereof is inserted into the slot of the embedded buckle 1 at one end of the metal outer tube 3 connected thereto, thereby realizing the connection and fixation of the two metal outer tubes 3, and realizing the splicing of the segmented waterproof casing, which is simple to operate and convenient to splice.

[0020] like Figure 1 , 2 As shown in 4, the metal outer tube 3 is made of metal, which avoids the damage of acidic and alkaline soil to the device when it is outside the foundation. The metal outer tube 3 has a built-in prestressed casing inner wall 4, which is used to isolate the metal outer tube 3, so that there is no interference when the built-in prestressed steel strands are stressed, thereby improving the safety of prestressed construction.

[0021] like Figure 1 , 2 As shown in Figure 3, multiple metal outer tubes 3 are spliced ​​together to form a complete waterproof casing. Two trumpet-shaped water-stopping wing rings 5 ​​are arranged near the two ends of the waterproof casing, and the trumpet mouths of the water-stopping wing rings 5 ​​face the water-facing direction, which plays a multiple water-stopping role and greatly reduces the risk of leakage.

[0022] The method of using the waterproof device for splicing prestressed steel strands through foundation caps described in the utility model is as follows:

[0023] Reference Figure 6 , use the positioning ribs to position the waterproof device in the foundation pedestal according to the elevation, and after the steel strands are inserted, the two sections of the waterproof device end slots are rotated and docked with the raised points outside the pedestal to form a whole. The docking process needs to be reviewed to ensure that the devices are in a straight line after the splicing is completed to prevent damage when the prestress is applied. The connection between the waterproof device and the bottom plate waterproof material is sealed with sealing paste to improve the water-stopping performance and further enhance the anti-leakage effect. The foundation pedestal is cast in one step, without the need to add additional steel strand insertion construction procedures, which saves construction time and improves the self-waterproof performance of concrete.

[0024] The embodiments are preferred implementations of the present invention, but the present invention is not limited to the above-mentioned implementations. Any obvious improvements, substitutions or modifications that can be made by those skilled in the art without departing from the essential content of the present invention belong to the protection scope of the present invention.

Claims

1. A waterproof device for splicing prestressed steel strands through foundation caps, characterized in that: The waterproof casing comprises a waterproof casing, which is formed by splicing a plurality of metal outer tubes (3) together. Two water-stop wing rings (5) are arranged near both ends of the waterproof casing. The metal outer tube (3) is made of metal and has an internal prestressed casing inner wall (4) for isolating the metal outer tube (3) so that there is no interference when the internal prestressed steel strands are stressed.

2. The waterproof device for splicing prestressed steel strands through foundation cap according to claim 1 is characterized in that: The metal outer tubes (3) are fixed to each other by means of a rotatable docking connection between an embedded buckle (1) and an external buckle (2), wherein an embedded buckle (1) and an external buckle (2) are respectively installed at both ends of the metal outer tube (3), the embedded buckle (1) and the external buckle (2) are both annular structures, three slots are provided on one side of the embedded buckle (1), and three protrusions matching the slots are provided on one side of the external buckle (2).

3. The waterproof device for splicing prestressed steel strands through foundation cap according to claim 1 is characterized in that: The water-stop wing ring (5) is of a trumpet-shaped structure, and the trumpet mouth of the water-stop wing ring (5) faces the water-heading direction.

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