Composite sealing device for deformation joints of underground buildings

Abstract

The present invention relates to a composite sealing device for deformation joints of underground buildings. In order to overcome the defects of the prior art, the composite sealing device for deformation joints of underground buildings comprises a sealing cover plate, the sealing cover plate is provided with flanges on both sides, a V-shaped deformation groove is provided in the middle, the sealing cover plate comprises a left side plate, an upper plate and a right side plate, the upper ends of the left side plate and the upper ends of the right side plate are respectively connected to the two ends of the upper plate, a left inflatable column and a right inflatable column are provided in the deformation joint, the left inflatable column is located on the outside of the left side plate, the right inflatable column is located on the outside of the right side plate, and the lower ends of the left inflatable column and the right inflatable column are respectively against the bottom plate, the upper ends of the left inflatable column and the upper ends of the right inflatable column are both at least 5 centimeters higher than the upper surface of the upper plate, and non-solidified asphalt is filled between the left inflatable column and the left side plate, between the right inflatable column and the right side plate, and between the left inflatable column and the right inflatable column on the upper plate. The composite sealing device for deformation joints of underground buildings has a simple structure and good waterproof sealing effect, and is suitable for waterproofing deformation joints of various underground buildings.

Description

Technical Field

[0001] The invention relates to a composite sealing device for deformation joints of underground buildings. Background Art

[0002] Most large reinforced concrete buildings have underground garages, civil air defense projects or underground storage rooms. At the same time, in order to avoid cracks caused by thermal expansion and contraction of the building, expansion joints must be set. For the convenience of passage, relative door openings are also opened on the walls on both sides of the expansion joint. The bottom plates under these door openings are formed in one piece, and there are indeed gaps on both sides and above. These gaps are simply filled with soil. When there is too much rain on the ground above the expansion joint, or too much water for greening irrigation, the water will pass through the soil in the expansion joint and then enter the underground building through the gaps between the door openings. This will cause water to enter the underground garage, civil air defense project or underground storage room. The existing technology is to add a sealing cover plate on the door opening for sealing. However, since the expansion joint itself will change with the temperature and shrink due to heat and cold, cracks often occur between the sealing cover plate and the wall during use, which is easy to leak. Summary of the invention

[0003] The technical problem to be solved by the present invention is how to overcome the above-mentioned defects of the prior art and provide a composite sealing device for deformation joints of underground buildings which can reliably seal the deformation joints no matter how the deformation joints are deformed.

[0004] In order to solve the above technical problems, a composite sealing device for underground building deformation joints is provided, including a sealing cover plate, the sealing cover plate is provided with flanges on both sides, a V-shaped deformation groove is provided in the middle, the spacing between the inner sides of the flanges on both sides is ≥ the spacing between the outer surfaces of the walls on both sides of the deformation joint of the underground building, the bottom plate below the deformation joint of the underground building is integrally formed, and opposite door openings are opened on the walls on both sides of the deformation joint of the underground building, and the sealing cover plate includes a left side plate, an upper plate and a right side plate, the upper ends of the left side plate and the upper ends of the right side plate are respectively connected to the two ends of the upper plate to form a deformable door frame with flanges on both sides, and the deformable door frame spans Through the door opening, its flanges are respectively abutted against the walls on both sides of the underground building deformation joint, and a left inflatable column and a right inflatable column are provided in the deformation joint, the left inflatable column is located on the outer side of the left side plate, and the right inflatable column is located on the outer side of the right side plate, and the lower ends of the left inflatable column and the right inflatable column are respectively against the bottom plate, the upper ends of the left inflatable column and the right inflatable column are both at least 5 centimeters higher than the upper surface of the upper plate, the left inflatable column and the right inflatable column are respectively provided with inflation pipes, and the inflation pipes are provided with inflation valves, and non-solidified asphalt is filled between the left inflatable column and the left side plate on the bottom plate, between the right inflatable column and the right side plate, and between the left inflatable column and the right inflatable column on the upper plate.

[0005] When using, first fix the matching template, and fix the sealing cover plate at the corresponding position of the designed door opening, and then cast the walls and bottom plate on both sides of the door opening according to the conventional method (note that the wall should not exceed the door opening too high). After the concrete of the wall and bottom plate solidifies, place the uninflated left and right inflatable columns between the deformation joints on both sides of the door opening, and make the lower ends of the left and right inflatable columns fall on the bottom plate respectively. Then open the inflation valve, inflate the left and right inflatable columns respectively, so that they are fully stuck in the walls on both sides, and then close the corresponding inflation valve, and then fill the left inflatable column and the left side plate, the right inflatable column and the right side plate on the bottom plate, and the left and right inflatable columns on the upper plate. Non-curing asphalt, as a new type of waterproof material, has a very high waterproof sealing effect. With this design, no matter how the deformation joint is deformed, the non-curing asphalt will not produce gaps, so as to always maintain a long-term waterproof effect, effectively preventing ground water or greening water from infiltrating or pouring into underground buildings.

[0006] As an optimization, the main body of the left and right inflatable columns are made of a composite cloth with an outer layer of asbestos cloth and an inner layer of heat-resistant acrylic. The lower end surfaces thereof are respectively provided with an inner ring and a chassis, and are sandwiched between the inner ring and the chassis. The inner ring and the chassis are fixed by countersunk screws.

[0007] The spraying temperature of non-curing asphalt is 140℃~180℃, while the heat-resistant temperature of heat-resistant acrylic ester is as high as 200℃. It can fully adapt to the filling of non-curing asphalt. The addition of inner ring and bottom plate can ensure that the lower surface of the left and right inflatable columns remain flat and close to the bottom plate in the inflated state, thereby preventing the leakage of non-curing asphalt.

[0008] As an optimization, the upper surface of the non-solidified asphalt is also covered with an elastic rubber sheet, and the front and rear sides of the elastic rubber sheet are respectively stuck on the walls on both sides of the deformation joint of the underground building. The elastic rubber sheet can be cut from waste conveyor belts. With this design, after filling the deformation joint with soil, the soil will not enter the non-solidified asphalt.

[0009] The composite sealing device for expansion joints of underground buildings of the present invention has the advantages of simple structure and good waterproof sealing effect, and is suitable for waterproofing expansion joints of various underground buildings. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The following is a further description of the underground building deformation joint composite sealing device of the present invention in conjunction with the accompanying drawings:

[0011] Figure 1 It is a schematic diagram of the three-dimensional structure of the sealing cover plate and the left and right inflatable columns of the first embodiment of the underground building deformation joint composite sealing device in a state where the non-cured sealing rubber is not filled;

[0012] Figure 2 yes Figure 1 Schematic diagram of the exploded three-dimensional structure;

[0013] Figure 3 This is a schematic diagram of the cross-sectional structure of the first implementation method of the composite sealing device for underground building deformation joints after filling with non-curing sealing rubber (cut along the vertical bisector of the deformation joint).

[0014] In the figure: 1 is a sealing cover plate, 11 is a left side plate, 12 is an upper plate, 13 is a right side plate, 2 is a flange, 3 is a V-shaped deformation groove, 4 is a deformation joint, 5 is a wall, 6 is a bottom plate, 7 is a door opening, 8 is a left inflatable column, 9 is a right inflatable column, 14 is an inflatable tube, 15 is an inflatable valve, 16 is non-curing asphalt, 17 is asbestos cloth, 18 is heat-resistant acrylic ester, 19 is an inner ring, 20 is a chassis, 21 is a countersunk screw, 22 is a lower end surface, and 23 is an elastic rubber plate.

[0015] L1 is the distance between the inner sides of the flanges 2 on both sides of the sealing cover plate 1, and L2 is the distance between the outer surfaces of the walls 5 on both sides of the deformation joint 4 of the underground building. DETAILED DESCRIPTION

[0016] Implementation method 1: Figure 1-3 As shown, the composite sealing device for underground building deformation joints comprises a sealing cover plate 1, wherein flanges 2 are arranged on both sides of the sealing cover plate 1, a V-shaped deformation groove 3 is arranged in the middle, the spacing L1 of the inner sides of the flanges 2 on both sides is ≥ the spacing L2 of the outer surfaces of the walls 5 on both sides of the underground building deformation joint 4, the bottom plate 6 below the underground building deformation joint 4 is integrally formed, and the walls 5 on both sides of the underground building deformation joint 4 are provided with relative door openings 7, and the sealing cover plate 1 comprises a left side plate 11, an upper plate 12 and a right side plate 13, the upper ends of the left side plate 11 and the upper ends of the right side plate 13 are respectively connected to the two ends of the upper plate 12 to form a deformable door frame with flanges 2 on both sides, and the deformable door frame spans the door opening 7, and the deformable door frame spans the door opening 7. The flanges 2 are respectively abutted against the walls 5 on both sides of the deformation joint 4 of the underground building. A left inflatable column 8 and a right inflatable column 9 are provided in the deformation joint 4. The left inflatable column 8 is located on the outside of the left side plate 11, and the right inflatable column 9 is located on the outside of the right side plate 13. The lower ends of the left inflatable column 8 and the right inflatable column 9 are respectively against the bottom plate 6. The upper ends of the left inflatable column 8 and the right inflatable column 9 are at least 5 centimeters higher than the upper surface of the upper plate. An inflation pipe 14 is respectively provided on the left inflatable column 8 and the right inflatable column 9. An inflation valve 15 is provided on the inflation pipe 14. Non-solidified asphalt 16 is filled between the left inflatable column 8 and the left side plate 11 on the bottom plate 6, between the right inflatable column 9 and the right side plate 13, and between the left inflatable column 8 and the right inflatable column 9 on the upper plate 12.

[0017] The main body of the left inflatable column 8 and the right inflatable column 9 is made of a composite cloth with an outer layer of asbestos cloth 17 and an inner layer of heat-resistant acrylic ester 18. The lower end surface 22 thereof is respectively provided with an inner ring 19 and a chassis 20, and is sandwiched between the inner ring 19 and the chassis 20. The inner ring 19 and the chassis 20 are fixed by countersunk screws 21.

[0018] The upper surface of the non-solidified asphalt 16 is also covered with an elastic rubber plate 23, and the front and rear sides of the elastic rubber plate 23 are respectively clamped on the walls 5 on both sides of the deformation joint 4 of the underground building.

[0019] Embodiment 2: Non-solidified asphalt The flange 2 has multiple through holes, each of which is provided with an expansion screw, and is fixed to the walls 6 on both sides of the door opening 7 by the expansion screws. This design facilitates the fixing of the flange 2. The rest of the structure is as shown in Embodiment 1 and is omitted.

Claims

1. A composite sealing device for deformation joints of underground buildings, comprising a sealing cover plate, the sealing cover plate is provided with flanges on both sides, a V-shaped deformation groove is provided in the middle, the spacing between the inner sides of the flanges on both sides is ≥ the spacing between the outer surfaces of the walls on both sides of the deformation joint of the underground building, the bottom plate below the deformation joint of the underground building is integrally formed, and opposite door openings are opened on the walls on both sides of the deformation joint of the underground building, characterized in that: The sealing cover plate includes a left side plate, an upper plate and a right side plate, the upper ends of the left side plate and the upper ends of the right side plate are respectively connected to the two ends of the upper plate to form a deformable door frame with flanges on both sides, the deformable door frame spans the door opening, and the flanges are respectively abutted against the walls on both sides of the deformation joint of the underground building, a left inflatable column and a right inflatable column are provided in the deformation joint, the left inflatable column is located on the outer side of the left side plate, the right inflatable column is located on the outer side of the right side plate, and the lower ends of the left inflatable column and the right inflatable column are respectively against the bottom plate, the upper ends of the left inflatable column and the right inflatable column are both at least 5 centimeters higher than the upper surface of the upper plate, the left inflatable column and the right inflatable column are respectively provided with inflation pipes, and the inflation pipes are provided with inflation valves, and non-solidified asphalt is filled between the left inflatable column and the left side plate on the bottom plate, between the right inflatable column and the right side plate, and between the left inflatable column and the right inflatable column on the upper plate.

2. The composite sealing device for expansion joints of underground buildings according to claim 1 is characterized in that: The main body of the left and right inflatable columns are made of a composite cloth with an outer layer of asbestos cloth and an inner layer of heat-resistant acrylic ester. The lower end surfaces thereof are respectively provided with an inner ring and a chassis, which are clamped between the inner ring and the chassis, and the inner ring and the chassis are fixed by countersunk screws.

3. The composite sealing device for underground building deformation joints according to claim 1 or 2, characterized in that: The upper surface of the non-solidified asphalt is also covered with an elastic rubber plate, and the front and rear sides of the elastic rubber plate are respectively clamped on the walls on both sides of the deformation joint of the underground building.

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