Top plate waterproof structure of underground garage

The three-layer composite panel structure design solves the problems of poor drainage and easy cracking in traditional underground garage roof waterproofing structures, achieving efficient drainage and improved durability.

CN224259463UActive Publication Date: 2026-05-19SHANDONG YIFANGDA CONSTR PROJECT MANAGEMENT CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG YIFANGDA CONSTR PROJECT MANAGEMENT CO LTD
Filing Date
2025-07-02
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Traditional underground parking garage roof waterproofing structures have unclear drainage paths, are prone to blockage, have poor compressive strength, are prone to cracking under long-term loads, and are difficult to maintain.

Method used

It adopts a three-layer composite panel structure, including a drainage layer, a filter layer and a protective layer. The drainage layer is equipped with a special-shaped water guide channel and a filter component, the filter layer is equipped with rubber pads, and the protective layer is made of pressure-resistant composite material. Combined with the special-shaped water guide channel and the filter component, it achieves directional flow guidance and filtration.

Benefits of technology

It improves drainage efficiency, prevents pipe blockage, extends maintenance cycles, and enhances the durability and compressive strength of the waterproof layer.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224259463U_ABST
    Figure CN224259463U_ABST
Patent Text Reader

Abstract

The utility model discloses a roof waterproof structure of an underground garage. The roof waterproof structure adopts a three-layer composite board design and comprises a drainage layer with a special-shaped water guide groove, a filter layer with a built-in rubber cushion block and a buffer reserved groove and a compression-resistant protection layer from bottom to top. The left side of the drainage layer is connected with an input pipeline through a filtering assembly, and a rotatable filtering turntable is arranged in the drainage layer to realize self-cleaning; the right side is in butt joint with the output pipeline through a pipeline clamping connecting piece. The structure solves the problems that a traditional top plate is prone to accumulated water leakage and poor in pressure resistance through directional drainage of the water guide groove, blockage prevention of the rotary filter disc and load dispersion of the buffer layer, and is suitable for various underground garages.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of waterproofing technology in building engineering, specifically a composite waterproofing structure suitable for the roof slab of an underground garage. Background Technology

[0002] Traditional waterproofing structures for underground parking garage roofs often use a single waterproof membrane, which suffers from problems such as unclear drainage paths, susceptibility to clogging, and poor compressive strength. Especially under long-term loads, the waterproof layer is prone to cracking, leading to leakage, and existing filter components are difficult to maintain, affecting drainage efficiency. Utility Model Content

[0003] This utility model addresses the problems existing in the prior art by providing a waterproof structure for the roof of an underground parking garage.

[0004] Including composite panels:

[0005] The composite board consists of three layers, which are combined from bottom to top as a drainage layer, a filter layer, and a protective layer, and the three layers are bonded together.

[0006] The drainage layer is provided with an irregularly shaped water guide channel. A filter component is provided on the left side of the irregularly shaped water guide channel. The filter component is used to connect to the input pipe. A pipe clamping connector is provided on the right side of the irregularly shaped water guide channel. The clamping connector is used to connect to the output drainage pipe.

[0007] The filter layer is equipped with rubber pads, and buffer grooves are symmetrically arranged on both sides of the rubber pads.

[0008] Preferably, the filter assembly includes an external flange, an inner screen tube, and an outlet pipe. The external flange is connected to the external pipe by bolts. The right side of the external flange is connected to the inner screen tube, and the right side of the inner screen tube is connected to the outlet pipe. A filter membrane is located between the inner screen tube and the outlet pipe.

[0009] Preferably, the inner screen tube is provided with a filter disc and a mating disc inside. The mating disc is sleeved on the outer side of the filter disc and is interference-fitted with the filter disc. A rotating shaft is provided at the axial center of the filter disc, and the filter disc and the rotating shaft cooperate to rotate on a fixed axis.

[0010] Preferably, the filter disc is provided with a plurality of filter holes, which are arranged in an array about the axis of the filter disc.

[0011] Preferably, the water outlet pipe is buried at the center of the drainage layer and the filter layer, and its right end is engaged with the irregular water guide channel.

[0012] Preferably, the pipe clamping connector has an output interface inside, which is fitted to the irregular water guide groove. The output interface has symmetrical installation threaded holes on both sides for connecting external drainage pipes.

[0013] Preferably, the cross-section of the output interface is the same as that of the irregularly shaped water guide channel.

[0014] Preferably, the rubber pad is fitted at the center of the filter layer and the protective layer, and the surface of the rubber pad is covered with a waterproof coating.

[0015] Preferably, the buffer reserved slot is filled with elastic buffer material.

[0016] Preferably, the protective layer is made of a pressure-resistant composite material.

[0017] Compared with the prior art, this utility model provides a waterproof structure for the roof of an underground parking garage, which has the following advantages:

[0018] 1. The waterproof structure of the top plate has a high-efficiency drainage function. The internal irregular water guide channel combined with the filter component can guide the sewage in the pipe in a directional manner, thereby improving the overall drainage efficiency.

[0019] 2. A filter assembly is installed at the connection between the waterproof structure of the top plate and the sewage pipe, which can filter the sewage in the pipe and prevent debris and large particles from clogging the subsequent sewage pipe, thus shortening the subsequent maintenance cycle.

[0020] 3. The waterproof structure of the roof slab adopts a composite layer structure, which improves the overall drainage efficiency compared with traditional waterproof boards. It can also backflow sewage through the directional transportation mode of sewage pipes. At the same time, the protective layer and filter layer set at the top can enhance the synergistic effect and significantly improve the durability of the waterproof layer. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0022] Figure 1 This is a three-dimensional external view of the present invention;

[0023] Figure 2 This is a schematic diagram of the internal structure in a specific embodiment of the present utility model;

[0024] Figure 3 This is a schematic diagram of the component structure of the filter assembly in a specific embodiment of this utility model;

[0025] Figure 4This is a schematic diagram of the component structure of the inner screen tube in a specific embodiment of this utility model;

[0026] Figure 5 This utility model Figure 2 A magnified view of a section at point A.

[0027] In the diagram: 1. Drainage layer; 2. Filter layer; 3. Protective layer; 4. Filter assembly; 5. Pipe clamping connector; 101. External flange; 102. Inner screen tube; 103. Filter membrane; 104. Rotating shaft; 105. Water outlet pipe; 201. Filter turntable; 202. Matching disc; 203. Filter hole; 301. Irregular water guide channel; 302. Output interface; 303. Mounting threaded hole; 1001. Rubber pad; 1002. Buffer reserved groove. Detailed Implementation

[0028] To more clearly illustrate the overall concept of this application, a detailed explanation is provided below with reference to the accompanying drawings.

[0029] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0030] Furthermore, it should be understood in the description of this application that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 the present invention.

[0031] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," 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 communication connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0032] In this application, unless otherwise expressly specified and limited, the "above" or "below" of the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples.

[0033] Example 1:

[0034] like Figure 1-5 As shown, the waterproof structure of the roof slab is installed as follows:

[0035] The filter assembly 4 is connected to the external rainwater pipe via the external flange 101; then the outlet pipe 105 is embedded in the center of the drainage layer 1 and engaged with the left end of the irregular water guide channel 301; the output interface 302 of the pipe engagement connector 5 is fixed to the drainage pipe through the threaded hole 303 to directionally transport sewage; at the same time, the rubber pad 1001 is placed in the center of the filter layer 2, and the buffer reserved groove 1002 is filled with polyurethane foam, which can provide support for the upper protective layer 3; the protective layer 3 covers the top layer and provides protection for the lower structure.

[0036] The specific working principle of this waterproof roof structure is as follows:

[0037] Rainwater enters the filter assembly 4 through the inlet pipe and is initially filtered by the filter holes 203 of the inner screen tube 102. Impurities are thrown away from the filter holes by the rotating filter disc 201. After further purification by the filter membrane 103, the water flows into the irregularly shaped water guide channel 301 through the outlet pipe 105 and is finally discharged through the outlet port 302. The load pressure is distributed by the protective layer 3 to the rubber pad 1001 and the buffer groove 1002 to prevent the waterproof layer from cracking.

[0038] Example 2:

[0039] Depending on the region, the waterproofing structure of the roof slab needs to be optimized and improved:

[0040] In some rainy areas, the irregular water guide channel 301 needs to be changed to a wavy cross section to improve the overall water guiding efficiency; at the same time, a micro motor is connected to the filter disc 201 to drive the filter disc 201 to rotate and automatically throw away impurities; the surface of the rubber pad 1001 is coated with a polyurea waterproof coating; the output interface 302 is connected to the PVC drain pipe through the installation thread hole 303.

[0041] Furthermore, when using this roof waterproof structure in cold regions, the irregular water guide channel 301 is embedded with an electric heating tape, while the filter membrane 103 is made of low-temperature resistant PTFE material, and the buffer reserved groove 1002 is filled with aerogel insulation material, thereby improving its overall cold resistance performance; when the electric heating is activated in winter, the ice melt water is filtered through the inner screen tube 102 and then introduced into the drainage system through the insulated water outlet pipe 105.

[0042] For any parts not mentioned in this application, existing technologies may be used or referenced.

[0043] The various embodiments in this specification are described in a progressive manner. The same or similar parts between the various embodiments can be referred to each other. Each embodiment focuses on describing the differences from other embodiments.

[0044] The above description is merely an embodiment of this application and is not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A waterproof structure for the roof slab of an underground parking garage, characterized in that, Including composite panels: The composite board consists of three layers, which are combined from bottom to top as a drainage layer, a filter layer, and a protective layer, and the three layers are bonded together. The drainage layer is provided with an irregularly shaped water guide channel. A filter component is provided on the left side of the irregularly shaped water guide channel. The filter component is used to connect to the input pipe. A pipe clamping connector is provided on the right side of the irregularly shaped water guide channel. The clamping connector is used to connect to the output drainage pipe. The filter layer is equipped with rubber pads, and buffer grooves are symmetrically arranged on both sides of the rubber pads.

2. The waterproof structure for the roof slab according to claim 1, characterized in that, The filter assembly includes an external flange, an inner screen tube, and an outlet pipe. The external flange is connected to the external pipe by bolts. The right side of the external flange is connected to the inner screen tube, and the right side of the inner screen tube is connected to the outlet pipe. A filter membrane is located between the inner screen tube and the outlet pipe.

3. The waterproof structure for the roof slab according to claim 2, characterized in that, The inner screen tube is equipped with a filter disc and a mating disc. The mating disc is sleeved on the outside of the filter disc and is interference-fitted with the filter disc. A rotating shaft is provided at the center of the filter disc, and the filter disc and the rotating shaft cooperate to rotate on a fixed axis.

4. The waterproof structure for the roof slab according to claim 3, characterized in that, The filter disc is provided with multiple filter holes, which are arranged in an array about the axis of the filter disc.

5. The waterproof structure for the roof slab according to claim 2, characterized in that, The water outlet pipe is buried at the center of the drainage layer and the filter layer, and its right end is engaged with the irregular water guide channel.

6. The waterproof structure for the roof slab according to claim 1, characterized in that, The pipe clamping connector has an output interface inside, which is fitted to the irregular water guide groove. The output interface has symmetrical installation threaded holes on both sides for connecting external drainage pipes.

7. The waterproof structure for the roof slab according to claim 6, characterized in that, The cross-section of the output interface is the same as that of the irregular-shaped water guide channel.

8. The waterproof structure for the roof slab according to claim 1, characterized in that, The rubber pad is fitted at the center of the filter layer and the protective layer, and the surface of the rubber pad is covered with a waterproof coating.

9. The waterproof structure for the roof slab according to claim 1, characterized in that, The buffer reserved slot is filled with elastic buffer material.

10. The waterproof structure for the roof slab according to claim 1, characterized in that, The protective layer is made of a pressure-resistant composite material.