Drainage opening of steel structure roof
By using anti-corrosion PVC pipes and geotextile reinforced drainage structures in the roof drainage system, the problem of poor roof drainage effect is solved, and efficient long-term use and durability of the waterproof layer are achieved.
Patent Information
- Application Number
- CN202421696935.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-07-17
AI Technical Summary
The existing roof rainwater discharge structure has poor drainage effect during use, which is not conducive to long-term use.
The PVC drainage pipe is equipped with an inner layer of anti-corrosion pipe, and two layers of geotextile are wrapped around it, combined with concrete drainage ditches and bidirectional steel mesh to form a water interception and drainage mechanism to prevent debris from being blocked.
It improves the roof drainage effect, extends the service life, prevents pipe blockage, and enhances the durability of the waterproof layer.
Smart Images

Figure CN223202607U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction engineering, in particular to a steel structure roof drain. Background Art
[0002] Construction projects refer to various types of buildings and their ancillary facilities, as well as the associated wiring, piping, equipment installation, and interior and exterior decoration. "Buildings" refer to projects with roofs, beams, columns, walls, foundations, and the ability to form interior spaces that meet people's needs for production, living, learning, and public activities. Housing construction projects, generally referred to as construction projects, refer to the various technical tasks involved in the survey, planning, design, construction, installation, and maintenance of new, renovated, or expanded buildings and ancillary structures, as well as the completed engineering entities. With the development of construction technology, the quality of roofing projects has received increasing attention from all walks of life, and roof waterproofing is particularly important. However, many problems exist in this regard.
[0003] For example, the authorization publication number CN208184085U discloses a roof rainwater drainage structure, comprising a flat roof, a drain pipe, and a rain gutter. The flat roof is provided with a rain gutter connected to a rainwater riser. The flat roof is surrounded by a parapet with a drain pipe installed on the parapet. The flat roof slopes toward the rain gutter at a gradient of 1-5%. This structure can address the problems of crowded risers, limited manhole space, and a single rainwater pipe within a building. Furthermore, due to the slope of the flat roof, initial rainwater flows toward the rain gutter. When the rainwater reaches the full capacity of the rain gutter, rainwater on the roof can be quickly collected and discharged through the drain pipe, avoiding increased structural load and extending the service life of the roof waterproofing layer. However, this structure suffers from poor drainage performance during use, making it unsuitable for long-term use. Therefore, we propose a steel roof drain gutter to address the poor drainage performance and long-term disadvantages of traditional structures. Utility Model Content
[0004] The purpose of the utility model is to provide a steel structure roof drain outlet to solve the problems raised in the above background technology.
[0005] To achieve the above objectives, the present invention provides the following technical solutions:
[0006] A steel structure roof drain outlet comprises a main body, a drain mechanism, a water interception mechanism, and a drainage mechanism. The drain mechanism is located inside the main body, the water interception mechanism is located inside the main body, and the drainage mechanism is located inside the main body. The main body comprises a roof, a roof top, and a roof bottom. The roof is fixedly installed on one side of the roof top and the roof bottom, the roof top is fixedly installed on one side of the roof, and the roof bottom is fixedly installed on one side of the roof.
[0007] Preferably, the drainage mechanism includes a PVC drainage pipe, an anti-corrosion pipe inner layer, a drainage pipe protective head, a geotextile, drainage holes, and a water inlet. The PVC drainage pipe is fixedly installed inside the roof, and the anti-corrosion pipe inner layer is fixedly installed inside the PVC drainage pipe.
[0008] Preferably, the water intercepting mechanism includes a concrete slope top intercepting ditch, a first thick concrete cushion layer, internal stirrups, and internal longitudinal steel bars. The concrete slope top intercepting ditch is fixedly installed inside the roof top, and the first thick concrete cushion layer is fixedly installed at the bottom end of the concrete slope top intercepting ditch.
[0009] Preferably, the drainage mechanism includes a concrete drainage ditch, a bidirectional steel mesh, a second thick concrete cushion layer, and a precast concrete cover plate. The concrete drainage ditch is fixedly installed inside the bottom of the roof, and the bidirectional steel mesh is fixedly installed inside the concrete drainage ditch.
[0010] Preferably, the drainage pipe protective head is fixedly installed on one side of the PVC drainage pipe, the geotextile is fixedly installed on one side of the PVC drainage pipe, the drainage holes are opened on one side of the PVC drainage pipe, and the water inlet is opened on one side of the drainage pipe protective head.
[0011] Preferably, the internal stirrups are fixedly installed inside the concrete slope top intercepting ditch, and the internal longitudinal steel bars are fixedly installed inside the concrete slope top intercepting ditch.
[0012] Preferably, the second thick concrete cushion layer is fixedly installed at the bottom end of the concrete drainage ditch, and the prefabricated concrete cover plate is fixedly installed at the top end of the concrete drainage ditch.
[0013] Compared with the prior art, the beneficial effects of the present invention are:
[0014] 1. This steel structure roof drain outlet uses a PVC drainage pipe exposed 50 mm above the roof to drain the roof. The PVC drainage pipe is installed with an anti-corrosion pipe inner layer to facilitate long-term use. The PVC drainage pipe is wrapped with two layers of geotextile. The drainage pipe protective head on one side of the PVC drainage pipe is used to prevent debris from entering the pipe and causing blockage.
[0015] 2. This is a steel structure roof drain outlet, with a concrete drain ditch installed at the bottom of the roof, a precast concrete cover plate installed on the top of the concrete drain ditch, the gap between the precast concrete cover plate and the concrete drain ditch is filled with cement mortar, and the inside of the concrete drain ditch is reinforced with a bidirectional steel mesh. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2This is a schematic diagram of the PVC drainage pipe of the utility model;
[0018] Figure 3 This is a schematic diagram of the protective head for the drainage pipe of the utility model;
[0019] Figure 4 This is a schematic diagram of the concrete slope top intercepting ditch of the utility model;
[0020] Figure 5 This is a schematic diagram of a concrete drainage ditch according to the present invention.
[0021] In the figure: 100, roof; 101, roof top; 102, roof bottom; 200, PVC drainage pipe; 201, anti-corrosion pipe inner layer; 202, drainage pipe protective head; 203, geotextile; 204, drainage hole; 205, water inlet; 300, concrete slope top intercepting ditch; 301, first thick concrete cushion layer; 302, internal stirrups; 303, internal longitudinal steel bars; 400, concrete drainage ditch; 401, bidirectional steel mesh; 402, second thick concrete cushion layer; 403, precast concrete cover plate. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0023] See also Figure 1-Figure 5 As shown, the utility model provides a technical solution:
[0024] A steel structure roof drain outlet includes a main body, a drain mechanism, a water interception mechanism, and a drainage mechanism. The drain mechanism is located inside the main body, the water interception mechanism is located inside the main body, and the drainage mechanism is located inside the main body. The main body includes a roof 100, a roof top 101, and a roof bottom 102. The roof 100 is fixedly installed on one side of the roof top 101 and the roof bottom 102, the roof top 101 is fixedly installed on one side of the roof 100, and the roof bottom 102 is fixedly installed on one side of the roof 100.
[0025] In this example, preferably, the drainage mechanism includes a PVC drainage pipe 200, an anti-corrosion pipe inner layer 201, a drainage pipe protective head 202, a geotextile 203, drainage holes 204, and a water inlet 205. The PVC drainage pipe 200 is fixedly installed inside the roof 100, and the anti-corrosion pipe inner layer 201 is fixedly installed inside the PVC drainage pipe 200.
[0026] In this example, preferably, the water-cutting mechanism includes a concrete slope-top water-cutting ditch 300, a first thick concrete cushion layer 301, internal stirrups 302, and internal longitudinal steel bars 303. The concrete slope-top water-cutting ditch 300 is fixedly installed inside the roof top 101, and the first thick concrete cushion layer 301 is fixedly installed at the bottom end of the concrete slope-top water-cutting ditch 300.
[0027] In this example, preferably, the drainage mechanism includes a concrete drainage ditch 400, a bidirectional steel mesh 401, a second thick concrete cushion layer 402, and a precast concrete cover plate 403. The concrete drainage ditch 400 is fixedly installed inside the roof bottom 102, and the bidirectional steel mesh 401 is fixedly installed inside the concrete drainage ditch 400.
[0028] In this example, preferably, the drainage pipe protective head 202 is fixedly installed on one side of the PVC drainage pipe 200, the geotextile 203 is fixedly installed on one side of the PVC drainage pipe 200, the drainage hole 204 is opened on one side of the PVC drainage pipe 200, and the water inlet 205 is opened on one side of the drainage pipe protective head 202.
[0029] In this example, preferably, the internal stirrups 302 are fixedly installed inside the concrete slope top drainage ditch 300 , and the internal longitudinal steel bars 303 are fixedly installed inside the concrete slope top drainage ditch 300 .
[0030] In this example, preferably, the second thick concrete cushion layer 402 is fixedly installed at the bottom end of the concrete drainage ditch 400, and the prefabricated concrete cover plate 403 is fixedly installed at the top end of the concrete drainage ditch 400.
[0031] When in use, a steel structure roof drain outlet of this embodiment drains water from the roof 100 through a PVC drainage pipe 200 exposed fifty millimeters above the roof 100. The interior of the PVC drainage pipe 200 is installed with an anti-corrosion pipe inner layer 201, which is beneficial for long-term use. The outside of the PVC drainage pipe 200 is wrapped with two layers of geotextile 203. The drainage pipe protective head 202 on one side of the PVC drainage pipe 200 is used to prevent debris from entering the pipe and causing blockage.
[0032] A concrete drainage ditch 400 is installed at the bottom 102 of the roof, and a precast concrete cover plate 403 is installed on the top of the concrete drainage ditch 400. The gap between the precast concrete cover plate 403 and the concrete drainage ditch 400 is filled with cement mortar, and the interior of the concrete drainage ditch 400 is reinforced with a bidirectional steel mesh 401.
[0033] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.
Claims
1. A steel structure roof drain, comprising a main body, a drain mechanism, a water interception mechanism, and a drainage mechanism, characterized in that: The water discharge mechanism is located inside the main body, the water interception mechanism is located inside the main body, and the drainage mechanism is located inside the main body. The main body comprises a roof (100), a roof top (101), and a roof bottom (102). The roof (100) is fixedly mounted on one side of the roof top (101) and the roof bottom (102). The roof top (101) is fixedly mounted on one side of the roof (100), and the roof bottom (102) is fixedly mounted on one side of the roof (100).
2. A steel structure roof drain according to claim 1, characterized in that: The drainage mechanism comprises a PVC drainage pipe (200), an anti-corrosion pipe inner layer (201), a drainage pipe protective head (202), a geotextile (203), drainage holes (204), and a water inlet (205); the PVC drainage pipe (200) is fixedly installed inside the roof (100); and the anti-corrosion pipe inner layer (201) is fixedly installed inside the PVC drainage pipe (200).
3. The steel structure roof drain according to claim 1, characterized in that: The water intercepting mechanism comprises a concrete slope top intercepting ditch (300), a first thick concrete cushion layer (301), internal stirrups (302), and internal longitudinal steel bars (303); the concrete slope top intercepting ditch (300) is fixedly installed inside the roof top (101); and the first thick concrete cushion layer (301) is fixedly installed at the bottom end of the concrete slope top intercepting ditch (300).
4. The steel structure roof drain according to claim 1, characterized in that: The drainage mechanism comprises a concrete drainage ditch (400), a bidirectional steel mesh (401), a second thick concrete cushion layer (402), and a prefabricated concrete cover plate (403); the concrete drainage ditch (400) is fixedly installed inside the bottom of the roof (102); and the bidirectional steel mesh (401) is fixedly installed inside the concrete drainage ditch (400).
5. The steel structure roof drain according to claim 2, characterized in that: The drainage pipe protective head (202) is fixedly installed on one side of the PVC drainage pipe (200), the geotextile (203) is fixedly installed on one side of the PVC drainage pipe (200), the drainage hole (204) is opened on one side of the PVC drainage pipe (200), and the water inlet (205) is opened on one side of the drainage pipe protective head (202).
6. The steel structure roof drain according to claim 3, characterized in that: The internal stirrups (302) are fixedly installed inside the concrete slope top intercepting ditch (300), and the internal longitudinal steel bars (303) are fixedly installed inside the concrete slope top intercepting ditch (300).
7. The steel structure roof drain according to claim 4, characterized in that: The second thick concrete cushion layer (402) is fixedly installed at the bottom end of the concrete drainage ditch (400), and the prefabricated concrete cover plate (403) is fixedly installed at the top end of the concrete drainage ditch (400).
Citation Information
Patent Citations
Roof rainwater discharges structure
CN208184085U