Steel roof corner gutter structure
The corner drainage channel structure connected by self-tapping screws solves the problem of unreasonable drainage at the corners of steel roof structures, achieving rapid fastening and stable connection, and improving the safety and durability of the roof system.
Patent Information
- Application Number
- CN202522535869.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-28
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-28
AI Technical Summary
The drainage design at the corners of existing steel-structured roofs is unreasonable, leading to leakage, water accumulation, and weak connections, which affects the safety and aesthetics of the building and makes it difficult to meet the requirements of modern buildings for efficiency, reliability, and durability.
The corner drainage channel structure, which uses self-tapping screws for connection, includes pressure strips and extension strips that are fixed to the roof panel. The folded edges are connected to the self-tapping screws to form a double-point anchoring mechanism, ensuring that the drainage channel is firmly attached to the roof and enhancing its strength and stability.
It enables rapid fastening of corner drainage channels, improving the overall safety and durability of the roof system, and is suitable for the corner parts of roofs in various steel structure buildings.
Smart Images
Figure CN224931285U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel structure roof technology, specifically a corner drainage channel structure for steel structure roofs. Background Technology
[0002] In steel structure buildings, the roof system, as an important component of the building's external envelope, directly affects the building's safety and durability through its waterproofing and drainage performance. Especially at roof corners, due to their complex structure and concentrated water flow, improper drainage design or inadequate sealing can easily lead to leaks and water accumulation, severely impacting the building's internal environment and structural safety.
[0003] Traditional steel-frame roofs often use on-site welding or splicing of ordinary drainage channels at corners for drainage, which has drawbacks such as high construction difficulty, poor sealing, and susceptibility to corrosion. Furthermore, conventional drainage channels are mostly straight structures, making it difficult to fit well with roof corners (especially non-right-angle corners), resulting in ineffective rainwater drainage and even backflow into the building. Meanwhile, existing fixing methods mostly rely on bottom supports or lateral clamps, which not only affect the overall aesthetics of the roof but may also loosen or detach under wind pressure or temperature deformation due to weak connections, reducing system reliability and failing to meet the demands of modern steel-frame buildings for efficient, reliable, and durable roof systems. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide a steel roof corner drainage channel structure, which realizes the rapid fastening of the corner drainage channel, improves the strength and connection stability of the corner drainage channel and the roof structure, and enhances the overall safety and durability of the roof system. It is particularly suitable for the roof corner parts of various steel structure buildings and can effectively solve the problems in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a steel roof corner drainage channel structure, including a roof and a corner drainage channel; the roof is composed of multiple top plates that are interlocked, the roof has a corner, and the corner drainage channel is connected to the roof and fixed below the end of the roof through multiple fasteners, with the edge of the roof facing the inner cavity of the corner drainage channel; the fasteners are located on the upper part of the top plate of the roof, and the fasteners are connected to the roof and the corner drainage channel through self-tapping screws.
[0006] Preferably, the fastener includes a pressure strip that fits against the top plate of the roof, and the pressure strip is further provided with an extension strip.
[0007] Preferably, the corner drainage channel includes a channel body, and two opposite sides of the channel body are provided with a first fold and a second fold. Both the first fold and the second fold are located away from or towards the inner cavity of the channel. The first fold, the roof, and the pressure strip are connected by self-tapping screws, and the second fold and the extension strip are connected by self-tapping screws.
[0008] Preferably, a waterproof gasket is provided between the pressure strip and the contact surface of the roof slab.
[0009] Preferably, the pressure strip and the extension strip are integrally stamped from galvanized steel sheet.
[0010] Preferably, the corner drainage channel has an arc or right-angle bend at the corner of the roof, matching the shape of the corner of the roof.
[0011] Compared with the prior art, the beneficial effects of this utility model are: the corner drainage channel is firmly connected to the lower end of the roof by fasteners and self-tapping screws, achieving rapid fastening; the corner drainage channel and the roof plate are respectively connected to the folded edges on both sides of the corner drainage channel and the roof plate, thereby improving the strength and connection stability of the corner drainage channel and the roof structure, enhancing the overall safety and durability of the roof system, and is particularly suitable for the corner parts of the roof of various steel structure buildings. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a partial structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the corner drainage trough structure of this utility model; Figure 4 This is a schematic diagram of the fastener structure of this utility model.
[0013] In the diagram: 1 Roof, 2 Fasteners, 2.1 Pressure Strip, 2.2 Extension Strip, 3 Corner Drainage Channel, 3.1 Channel Body, 3.2 Folded Edge 1, 3.3 Folded Edge 2. Detailed Implementation
[0014] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" indicating the orientation or positional relationship, they are only corresponding to the drawings of this application for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation.
[0015] Please see Figure 1-4This utility model provides a technical solution: a steel roof corner drainage channel structure, including a roof 1 and a corner drainage channel 3; the roof 1 is composed of multiple top plates that are interlocked, the roof 1 has a corner, and the corner drainage channel 3 is connected to the roof 1 and fixed below the end of the roof 1 by multiple fasteners 2, with the edge of the roof 1 facing the inner cavity of the corner drainage channel 3; the fasteners 2 are located on the upper part of the top plate of the roof 1, and the fasteners 2 are connected to the roof 1 and the corner drainage channel 3 by self-tapping screws; it realizes the integrated installation of the drainage channel and the roof system, with a compact structure and reasonable stress distribution; the fasteners 2 are located on the upper part of the top plate and connected to the corner drainage channel 3 by self-tapping screws, realizing the rapid fastening of the corner drainage channel 3 and improving construction efficiency; the edge of the roof 1 faces the inner cavity of the corner drainage channel 3, ensuring that rainwater falls directly into the channel, improving drainage efficiency and preventing overflow or backflow; Specifically, the fastener 2 includes a pressure strip 2.1 that fits against the top plate of the roof 1, and the pressure strip 2.1 also has an extension strip 2.2; a waterproof gasket is provided between the contact surface of the pressure strip 2.1 and the top plate of the roof 1 to reduce rainwater leakage into the house; the pressure strip 2.1 and the extension strip 2.2 are integrally stamped from galvanized steel sheet, adopting an integral molding structure without welds or splices; the corner drainage channel 3 includes a channel body 3.1, and the two opposite sides of the channel body 3.1 are respectively provided with a first folded edge 3.2 and a second folded edge 3.3, both of which are located away from the inner cavity of the channel body 3.1 or towards the inner cavity. The inner cavity of the drainage channel 3.1, the first folded edge 3.2, the roof 1, and the pressure strip 2.1 are connected by self-tapping screws, and the second folded edge 3.3 is connected to the extension strip 2.2 by self-tapping screws. The folded edge structure enhances the edge strength and deformation resistance of the drainage channel. The connection between the first folded edge 3.2 and the pressure strip 2.1, and the connection between the second folded edge 3.3 and the extension strip 2.2 respectively, forms a double-point anchoring mechanism, which makes the drainage channel more evenly stressed, improves the stability of the structure, effectively resists wind, and enhances the overall safety and durability of the roof system. It is especially suitable for the roof corners of various steel structure buildings. In addition, the corner drainage channel 3 has an arc or right-angle bend structure at the corner of the roof 1, which matches the shape of the corner of the roof 1.
[0016] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and are intended to include all changes that fall within the meaning and scope of equivalents in the content of this utility model.
Claims
1. A steel roof corner drainage channel structure, characterized in that: It includes a roof (1) and a corner drainage channel (3); the roof (1) is composed of multiple top plates that are inserted and connected together. The roof (1) has a corner. The corner drainage channel (3) is connected to the roof (1) and fixed below the end of the roof (1) by multiple fasteners (2). The edge of the roof (1) is directly opposite the inner cavity of the corner drainage channel (3). The fasteners (2) are located on the upper part of the top plate of the roof (1). The fasteners (2) are connected to the roof (1) and the corner drainage channel (3) by self-tapping screws.
2. The steel roof corner drainage channel structure according to claim 1, characterized in that: The fastener (2) includes a strip (2.1) that fits against the top plate of the roof (1), and the strip (2.1) is also provided with an extension strip (2.2).
3. The corner drainage channel structure for a steel roof according to claim 2, characterized in that: The corner drainage channel (3) includes a channel body (3.1). The two opposite sides of the channel body (3.1) are provided with a first fold (3.2) and a second fold (3.3). Both the first fold (3.2) and the second fold (3.3) are located away from or towards the inner cavity of the channel body (3.1). The first fold (3.2), the roof (1), and the pressure strip (2.1) are connected by self-tapping screws. The second fold (3.3) and the extension strip (2.2) are connected by self-tapping screws.
4. A steel roof corner drainage channel structure according to claim 2, characterized in that: A waterproof gasket is provided between the pressure strip (2.1) and the top plate of the roof (1).
5. A steel roof corner drainage channel structure according to claim 2, characterized in that: The pressure strip (2.1) and extension strip (2.2) are integrally stamped from galvanized steel sheet.
6. The corner drainage channel structure for a steel roof according to claim 1, characterized in that: The corner drainage channel (3) has an arc or right angle bend structure at the corner of the roof (1) to match the corner shape of the roof (1).