Thermal insulation roof floor drain secondary drainage structure

Abstract

The utility model relates to the technical field of drainage structures, and discloses a secondary drainage structure of a thermal insulation roof floor drain, which comprises a roof base layer, a layered floor drain component, a water-proof layer, a thermal insulation layer and a decorative surface layer which are sequentially arranged above the roof base layer, and a water-proof layer, a thermal insulation layer and a decorative surface layer which are sequentially arranged above the roof base layer, the guide pipe extends into the hopper base by at least one centimeter, the heat preservation layer is located between the flow guide cover and the hopper base, and when rainwater permeates into the heat preservation layer through the decorative face layer, accumulated water enters the guide pipe of the flow guide cover through the drainage layer and is discharged out of a roof through the hopper base. Meanwhile, roof surface layer water directly flows into the hopper base through the flow guide cover, and the heat preservation layer is prevented from being washed by rainwater. The floor drain installed in a layered mode enables the flow guide cover and the hopper base to be relatively independent, later garbage cleaning is facilitated, the drainage layer forms an efficient drainage channel, water return is prevented, accumulated water in the heat preservation layer is promoted to be drained, the water storage problem of the heat preservation layer is solved, and potential quality hazards such as cracking and hollowing of the decorative surface layer are reduced.

Description

Technical Field

[0001] This utility model relates to the field of drainage structure technology, and in particular to a secondary drainage structure for insulated roof floor drains. Background Technology

[0002] An inverted insulated roof is a roof construction where the insulation layer is placed above the waterproof layer. Its basic structure typically involves: first, a slope-forming and leveling layer is laid on top of the roof structure; then, a waterproof layer is laid; next, an insulation layer is placed on top of the waterproof layer; finally, a protective layer (such as concrete blocks, floor tiles, or a pebble layer) is used to secure the insulation material and provide protection. The core advantage of this "inverted" design is that the insulation layer directly protects the underlying waterproof layer from direct damage caused by ultraviolet rays, temperature changes, and external impacts, thus extending the service life of the waterproof layer. A secondary drainage structure is a dual drainage design used to enhance a building's waterproofing capabilities, commonly found in bathrooms, balconies, roofs, and other areas prone to water accumulation. Its core principle is to add an additional drainage channel outside the existing main drainage system (such as floor drains) to address special situations such as damage to the waterproof layer or pipe leaks.

[0003] In the existing technology, the inverted insulated roof process has the problem that the insulation layer is prone to water accumulation when there is no drainage ditch on the roof. Long-term water accumulation may lead to quality problems such as insulation layer failure and cracking of the decorative surface layer. This utility model proposes a secondary drainage structure for insulated roof floor drains to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a secondary drainage structure for insulated roof floor drains.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A secondary drainage structure for an insulated roof drain includes a roof base layer, a waterproof layer, an insulation layer, and a decorative surface layer arranged sequentially above the roof base layer. It also includes a layered drain assembly comprising a guide hood and a base. The guide hood is connected to the base via a conduit, which extends at least [number] centimeters into the base. The insulation layer is located between the guide hood and the base. The top surface of the guide hood is flush with the decorative surface layer, and the bottom surface of the base contacts the top surface of the waterproof layer. A hydrophobic layer is provided at the junction of the conduit between the insulation layer and the guide hood. This hydrophobic layer is composed of graded crushed stone wrapped in non-woven fabric, wrapping the outer periphery of the conduit and extending into the insulation layer. A drainage system is provided whereby the roof base layer achieves a slope by structural sloping or by adding a sloping layer at the bottom of the waterproof layer, allowing water to flow towards the base.

[0007] As a further embodiment of this invention, the connection between the conduit and the bucket seat is sealed with sealant.

[0008] As a further embodiment of this utility model, the particle size of the graded crushed stone is 5-10 mm.

[0009] As a further embodiment of this utility model, the slope of the slope-finding layer is 2%-3%.

[0010] As a further embodiment of this utility model, an isolation layer and a protective layer are provided between the insulation layer and the decorative surface layer, with the isolation layer disposed on the bottom surface of the protective layer.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] When rainwater seeps through the decorative surface layer to the insulation layer, the accumulated water enters the guide pipe of the drain cover through the drainage layer and is discharged from the roof through the drain trough. Simultaneously, water from the roof surface flows directly into the drain trough through the drain cover, preventing the insulation layer from being washed away by rainwater. The layered installation of the drains makes the drain cover and drain trough relatively independent, facilitating later cleaning of debris; the drainage layer forms an efficient drainage channel, preventing backflow and promoting the drainage of water accumulated in the insulation layer, solving the problem of water retention in the insulation layer and reducing quality risks such as cracking and hollowing of the decorative surface layer. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a secondary drainage structure for an insulated roof floor drain proposed in this utility model.

[0014] Figure 2 This is a schematic diagram of the bracket structure of a secondary drainage structure for an insulated roof floor drain proposed in this utility model.

[0015] In the diagram: 1. Roof base layer; 2. Waterproof layer; 3. Insulation layer; 4. Decorative surface layer; 5. Drainage cover; 6. Base; 7. Conduit; 8. Drainage layer; 9. Slope layer; 10. Protective layer; 11. Isolation layer. Detailed Implementation

[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0017] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Reference Figure 1 and Figure 2 A secondary drainage structure for an insulated roof drain includes a roof base layer 1, a waterproof layer 2, an insulation layer 3, and a decorative surface layer 4 arranged sequentially above the roof base layer 1. It also includes a layered drain assembly comprising a guide hood 5 and a base 6. The guide hood 5 is connected to the base 6 via a conduit 7, which extends at least 5 cm into the base 6. The insulation layer 3 is located between the guide hood 5 and the base 6, with the top surface of the guide hood 5 flush with the decorative surface layer 4 and the bottom surface of the base 6 in contact with the top surface of the waterproof layer 2. A hydrophobic layer 8 is provided at the junction of the insulation layer 3 and the conduit 7 of the guide hood 5. The hydrophobic layer 8 is composed of graded crushed stone wrapped in non-woven fabric, wrapping the outer periphery of the conduit 7 and extending into the interior of the insulation layer 3. A drainage system is also included, where the roof base layer 1 is sloped or a slope-forming layer 9 is added at the bottom of the waterproof layer 2 to direct water flow to the base 6.

[0020] In this embodiment, the connection between the conduit 7 and the bucket seat 6 is sealed with sealant, the particle size of the graded crushed stone is 5-10mm, the slope of the slope-finding layer 9 is 2%-3%, and an isolation layer 11 and a protective layer 10 are provided between the insulation layer 3 and the decorative surface layer 4. The isolation layer 11 is provided on the bottom surface of the protective layer 10.

[0021] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0022] When rainwater falls on the decorative surface layer 4, the surface water enters the guide hood 5 through the grate, and then enters the trough 6 at least 5 cm through the bottom conduit 7 of the guide hood 5, flowing directly into the trough 6 and being discharged through the main drainage pipe connected to the trough 6, thus preventing rainwater from washing away the insulation layer 3 located between the guide hood 5 and the trough 6.

[0023] If rainwater seeps into the insulation layer 3, the accumulated water will be collected in the pipe 7 through the non-woven fabric wrapped in the hydrophobic layer 8 at the junction of the insulation layer 3 and the pipe 7, and then discharged through the trough 6. The hydrophobic layer 8 not only forms a drainage channel to guide the accumulated water, but also filters the pipe 7 through the non-woven fabric to prevent the debris of the insulation layer 3 from clogging the pipe 7. At the same time, the pores of the graded crushed stone are used to alleviate the air pressure fluctuations in the pipe and prevent backflow. In conjunction with the slope of the roof base 1 structure or the slope layer 9 added at the bottom of the waterproof layer 2, the water flows to the trough 6 in an organized manner, achieving a dual drainage effect of "direct drainage of surface water and drainage of seepage water". The layered drainage cover 5 is relatively independent from the trough 6, which facilitates the later cleaning of the debris in the drainage cover 5, ultimately solving the problem of water retention in the insulation layer 3 and reducing quality risks such as cracking and hollowing of the decorative surface layer 4.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A secondary drainage structure for an insulated roof floor drain, comprising a roof base layer (1) on which a waterproof layer (2), an insulation layer (3), and a decorative surface layer (4) are sequentially disposed, characterized in that, Also includes: The layered drain assembly includes a flow guide (5) and a basin (6). The flow guide (5) is connected to the basin (6) via a conduit (7), which extends at least 5 cm into the basin (6). The insulation layer (3) is located between the flow guide (5) and the basin (6). The top surface of the flow guide (5) is flush with the decorative surface layer (4), and the bottom surface of the basin (6) is in contact with the top surface of the waterproof layer (2). A hydrophobic layer (8) is provided at the junction of the conduit (7) of the insulation layer (3) and the flow guide (5). The hydrophobic layer (8) is composed of graded crushed stone wrapped in non-woven fabric. The hydrophobic layer (8) wraps the outer periphery of the conduit (7) and extends into the interior of the insulation layer (3). The drainage system is such that the roof base (1) is sloped by a structure or a slope layer (9) is added at the bottom of the waterproof layer (2) so that water flows to the trough (6).

2. The secondary drainage structure for an insulated roof floor drain according to claim 1, characterized in that, The connection between the conduit (7) and the bucket (6) is sealed with sealant.

3. The secondary drainage structure for an insulated roof floor drain according to claim 1, characterized in that, The particle size of the graded crushed stone is 5-10 mm.

4. The secondary drainage structure for an insulated roof floor drain according to claim 1, characterized in that, The slope of the slope-finding layer (9) is 2%-3%.

5. The secondary drainage structure for an insulated roof floor drain according to claim 1, characterized in that, An isolation layer (11) and a protective layer (10) are provided between the insulation layer (3) and the decorative surface layer (4), and the isolation layer (11) is provided on the bottom surface of the protective layer (10).

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