Installation method of a toilet secondary drainage device

Abstract

A bathroom secondary drainage device and its installation method, including the following steps: Step 1, preparation work: fix the floor drain downpipe in the bathroom structure floor according to the position of the design drawing, and paint the bathroom structure floor and surrounding areas according to the design requirements. The first waterproof layer forms a waterproof caisson; Step 2, add drainage holes on the downpipe: Arrange horizontally at the junction of the downpipe and the flexible waterproof coating 5mm upwards and drill more than 2 round holes with a diameter of 5mm~6mm, Step 3, install the secondary drainage device: Attach and fix the main body to the outer surface of the downpipe; step 4, make the surface layer: completely cover the filter block with stones with a particle size of 3~8mm, make the filling layer with clay, and then fix the face brick and metal floor drain with cement mortar. The invention can effectively discharge the accumulated water in the clay filling layer in the toilet to the downpipe, achieve the purpose of reducing the water level in the clay filling layer, and can effectively prevent the water level in the clay filling layer from gathering too much and appearing on the walls around the toilet The phenomenon of resurgence.

Description

technical field [0001] The invention relates to the field of building water supply and drainage, in particular to a method for installing a toilet secondary drainage device. Background technique [0002] Since the Ministry of Housing and Urban-Rural Development encouraged the promotion of fully furnished houses, the leaking problem in the bathroom after the delivery of finely decorated houses has plagued developers and house buyers. [0003] In order to improve the construction efficiency and reduce the cost of newly-built commercial residential fully furnished houses, the toilets of fully furnished houses basically adopt the method of heterogeneous drainage. There are relatively few cases of downstairs leakage in fully furnished houses, but the walls of the houses on this floor near the toilets are constantly getting damp; this shows that the waterproof layer of the ground part of the waterproof caisson in the bathroom of fully furnished houses, including the waterproof lay...

AI Technical Summary

Problems solved by technology

[0006] Patent No.: ZL 201410071557.4 discloses "A Secondary Drainage Construction Method for Toilets". The secondary drainage method is to make the traditional caisson waterproof into a waterproof layer with a slope, and drill a 10mm-diameter hole on the root of the water pipe under the washbasin. In order to achieve the purpose of secondary drainage, but the drilling of this method will have a damaging effect on the bonding between the waterproof layer and the water pipe in the waterproof caisson, and the mold between the waterproof layer and the water pipe will cause mildew over time. If the two are separated, water will eventually leak to the next layer along the crevice to form water leakage. This method is difficult to ensure long-term waterproof quality

[0007] Patent No. ZL202010386896.7 "A Secondary Floor Drain Connection Structure and Construction Technology for Sunken Toilets" requires the production of vertical water guide wells. The construction is complicated and a special underground floor drain needs to be inserted into the embedded casing, which reduces the size of the original water pipe. diameter, affecting normal drainage

[0008] Patent No.: ZL 201920878888.7 "A Concealed Floor Drain to Prevent Indoor and Exterior Walls and Floors from Wetting and Preventing Saturated Water from Overflowing". This technology will greatly reduce the diameter of the original water pipe and affect normal drainage; The ground waterproof structure can also achieve secondary drainage, but this technology will also greatly reduce the diameter of the water pipe, affecting normal drainage

[0009] Patent No.: ZL 201720652712.0 "Drainer and Drainage System", which can realize secondary drainage. This technology already has a patented product, but to use this patented product, it is first necessary to cut off the original floor drain downpipe against the waterproof layer, and then insert the product into the floor drain downpipe Use; cutting the original floor drain downpipe against the waterproof layer will affect the adhesion between the waterproof layer and the floor drain downpipe, and this patented product will greatly reduce the diameter of the original water pipe: for example, the cross-sectional area of ​​the floor drain downpipe with an inner diameter of 75mm is 44.18 square meters cm, the minimum diameter of the 75-type product is only 56mm, and the cross-sectional area is only 24.62 square centimeters, and the water flow is reduced by nearly half; while the cross-sectional area of ​​the floor drain with an inner diameter of 50mm is 19.63 square centimeters, the minimum diameter of the 50-type product is only 34mm, the cross-sectional area is 9.07 square centimeters, and the water flow is reduced by half. When it takes a long time to discharge the full design load, there is obviously a safety hazard.

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