Local roof system separation type double-gutter structure suitable for expansion joint

By designing a separated double gutter structure for the local roof system, the problem of gutter setting at the expansion joint was solved, efficient waterproofing and structural stability were achieved, construction was simplified, and the quality of the building's appearance was improved.

CN223410401UActive Publication Date: 2025-10-03MCC (SHANGHAI) STEEL STRUCTURE TECHNOLOGY CORP LTD
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Patent Information

Application Number
CN202422646570.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-31
Publication Date
2025-10-03
Estimated Expiration
2034-10-31

AI Technical Summary

Technical Problem

In large metal roof buildings, the gutters at the expansion joints are difficult to cross, resulting in frequent problems such as waterproof layer rupture and leakage. Existing technologies are unable to simultaneously meet the requirements of waterproof performance, durability and stability.

Method used

A local roof system with separated double gutter structure is designed. The two gutters are located on both sides of the expansion joint. Through the special arrangement of gutter cantilever brackets and waterproof membranes, an independent local metal roof system is formed to adapt to structural deformation and ensure waterproof effect.

Benefits of technology

It achieves efficient waterproofing at the expansion joints, improves the adaptability and stability of the structure, simplifies the construction process, reduces costs, and enhances the aesthetics of the building.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a partial roof system separated type double-gutter structure suitable for an expansion joint. The partial roof system separated type double-gutter structure comprises two gutters which are arranged in a spaced mode and are parallel to each other. The two gutters are located on the two sides of the expansion joint respectively. The adjacent sides of the two gutters are both fixedly provided with gutter overhanging supports, the gutter overhanging supports are located between the two gutters, the gutter overhanging supports on the two sides are not connected, the roof system between the gutters is laid on the gutter overhanging supports, the roof system between the gutters inclines towards one gutter, and the roof system between the gutters inclines towards the other gutter. The side, close to the other gutter, of the roof system between the gutters is provided with an edge closing flashing plate. A waterproof coiled material is laid in the gutter, the waterproof coiled material is laid by extending from one gutter side to the other gutter side from the lower portion of the roof system between the gutters, and the waterproof coiled material is folded at the gutter cantilever support. The local roof system separated type double-gutter structure suitable for the expansion joint is good in adaptability, waterproof performance and attractiveness, effectively solves the problem of gutter arrangement at the expansion joint, and is good in application prospect.
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Description

Technical Field

[0001] The utility model relates to the technical field of metal roof enclosure systems, in particular to a separated double-gutter structure suitable for a local roof system of an expansion joint, and in particular to a separated double-gutter structure particularly suitable for large buildings or roofs that need to cross expansion joints. Background Art

[0002] In large metal-roofed buildings, expansion joints are essential due to structural deformation and temperature fluctuations. Existing technologies present challenges in gutter installation due to the large distance between the structural supports on either side of the expansion joint. Furthermore, gutters cannot be placed directly on top of the expansion joint, leading to problems such as water leakage and structural instability with traditional gutter installations. However, traditional gutter designs often struggle to directly span expansion joints, resulting in frequent waterproofing cracks and leaks.

[0003] Therefore, it is of great practical significance to develop a gutter structure suitable for expansion joints that has good waterproof performance, good durability and good stability. Utility Model Content

[0004] Due to the above-mentioned defects in the prior art, the utility model provides a gutter structure suitable for expansion joints with good waterproof performance, good durability and good stability, especially a separated double gutter structure of a local roof system suitable for expansion joints, which can effectively adapt to structural deformation and ensure efficient waterproofing, solving the defects of the prior art in gutter setting difficulties and waterproofing problems caused by the existence of expansion joints.

[0005] In order to achieve the above objectives, the present invention provides the following technical solutions:

[0006] A separated double gutter structure for a local roof system suitable for expansion joints includes two gutters arranged at intervals and parallel to each other;

[0007] Two gutters are located on either side of the expansion joint;

[0008] Gutter cantilever brackets are fixed on the adjacent sides of the two gutters. The gutter cantilever brackets are located between the two gutters and the gutter cantilever brackets on both sides are not connected. The roof system between the gutters is laid on the gutter cantilever brackets. The roof system between the gutters is inclined toward one gutter. A trim flashing is installed on the side of the roof system between the gutters near the other gutter. The trim flashing and the roof system between the gutters are connected as a whole to completely cover the gap between the two gutters.

[0009] A waterproof roll is laid in the gutter. The waterproof roll is extended from one gutter side under the roof system between the gutters to the other gutter side and is folded at the gutter cantilever bracket.

[0010] A certain interval is formed between the two gutters (i.e. the local roofing system used for separation) to adapt to the deformation requirements of the expansion joint and ensure that the gutter does not directly cross the expansion joint, thereby avoiding the risk of leakage caused by structural displacement; the local metal roofing system installed between the gutters can improve the integrity of the entire roof and have a high aesthetics.

[0011] The utility model cleverly utilizes the layout of structural support points and combines the special design of the local roof system to achieve the purpose of meeting the structural deformation requirements while ensuring efficient waterproofing.

[0012] The utility model is suitable for the local roof system separated double gutter structure of expansion joints, and the structural design is reasonable. The gutters are separated by the local roof system and the local roof system is arranged on the gutter cantilever bracket. The disconnection of the gutter cantilever brackets on both sides can ensure that they do not interfere with each other when the structure is deformed, and effectively isolates the influence of the expansion joint on the roof system. The design of the cantilever bracket not only ensures the stability of the local roof system, but also allows free deformation at the expansion joint, thereby improving the adaptability of the structure; the waterproof membrane is folded at the gutter cantilever bracket to reserve sufficient expansion and contraction amount to adapt to possible structural deformation in the future, while ensuring waterproof continuity and long-term waterproof effect; the design of the roof system between the edge flashing board and the gutter can ensure that the accumulated water flowing into the area between the two gutters can be quickly drained away through the gutter, and the application prospect is good.

[0013] As the preferred technical solution:

[0014] The separated double gutter structure of a local roof system suitable for expansion joints as described above has gutter rods installed in the gutter for fixing the gutter.

[0015] In the above-mentioned separated double-gutter structure of a local roof system suitable for expansion joints, a thermal insulation layer is provided on the main purlin and the double-gutter structure is arranged on the thermal insulation layer.

[0016] In the separated double-gutter structure of a local roof system suitable for expansion joints as described above, the main purlins at the bottom of the gutter on both sides of the expansion joint are disconnected at the expansion joint to maintain the independence of the gutter, thereby avoiding damage to the gutter due to structural deformation. The gutter roof bottom plate is installed on the lower side of the main purlin at the bottom of the gutter, and a U-shaped plate for connecting the roof bottom plates at the expansion joint is installed between the gutter roof bottom plates on both sides of the expansion joint. The projection of the U-shaped plate for connecting the roof bottom plates at the expansion joint completely covers the projection of the expansion joint.

[0017] In the aforementioned split-type double-gutter structure for a partial roof system suitable for expansion joints, the U-shaped groove formed by the U-shaped plates used to connect the roof floor at the expansion joint opens upward. The U-shaped plates used to connect the roof floor at the expansion joint are securely connected to the roof floor at the two sides of the gutter. The insulation layer between the gutters is directly laid on the roof floor at the gutter, simplifying the construction process and enhancing the integrity and stability of the roof.

[0018] In the aforementioned split-gutter structure for a partial roof system suitable for expansion joints, the underside of the main purlins at the bottom of the gutter is supported by diagonal braces fixed to the main structure. To enhance structural stability and waterproofing, the roof panel ribs between the gutters are perpendicular to the gutter direction to facilitate drainage and reduce the risk of water accumulation.

[0019] In the above-mentioned separated double-gutter structure of a local roof system suitable for expansion joints, the roof system outside the gutter is laid on the main purlins of the roof on both sides.

[0020] In the aforementioned split double-gutter structure for a partial roof system suitable for expansion joints, the waterproof membrane comprises at least two layers to ensure waterproofing. The continuous laying of the waterproof membrane and the pre-folded pleats at the expansion joints provide the structure with excellent adaptability and waterproofing performance.

[0021] The above technical solution is only a feasible technical solution of the present invention. The protection scope of the present invention is not limited to this. Those skilled in the art can reasonably adjust the specific design according to actual needs.

[0022] The above utility model has the following advantages or beneficial effects:

[0023] (1) The utility model is suitable for the local roof system separation type double gutter structure of the expansion joint, which has good adaptability. Through the separation design of the double gutter and the local roof system, it effectively solves the problem of gutter setting at the expansion joint and improves the system's adaptability to structural deformation;

[0024] (2) The utility model is suitable for the partial roof system of the expansion joint. The separated double gutter structure has good waterproof performance. The design of the second waterproof layer and the special treatment method of the waterproof membrane ensure the waterproof reliability of the expansion joint area.

[0025] (3) The utility model is suitable for the partial roof system separated double gutter structure of the expansion joint, which simplifies the construction, simplifies the complex structure of the traditional expansion joint treatment solution, and reduces the construction difficulty and cost;

[0026] (4) The utility model is suitable for the partial roof system separated double gutter structure of the expansion joint, which has good aesthetics. The overall design takes architectural aesthetics into consideration. The harmonious unity of the gutter and the roof improves the appearance quality of the building and has good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention and its features, configurations, and advantages will become more apparent upon reading the detailed description of the following non-limiting embodiments with reference to the accompanying drawings. Like reference numerals indicate like parts throughout the drawings. The drawings are not drawn to scale, with emphasis placed on illustrating the subject matter of the present invention.

[0028] Figure 1 It is a cross-sectional schematic diagram of a separated double-gutter structure of a local roof system suitable for expansion joints of the utility model;

[0029] Figure 2 This is an axonometric view of a separated double-gutter structure of a local roof system suitable for expansion joints of the present utility model;

[0030] Among them, 1 is the gutter rod, 2 is the roof system outside the gutter, 21 is the roof system between the gutters, 22 is the edge flashing, 3 is the waterproof membrane, 31 is the folded waterproof membrane at the expansion joint, 4 is the gutter cantilever bracket, 41 is the interruption of the gutter cantilever bracket on both sides, 5 is the insulation layer, 6 is the roof bottom plate at the gutter, 61 is the U-shaped plate for connecting the roof bottom plate at the expansion joint, 7 is the main purlin at the bottom of the gutter, 8 is the main purlin on both sides of the roof, 9 is the diagonal brace of the main purlin structure at the bottom of the gutter, and 10 is the main structure. DETAILED DESCRIPTION

[0031] The structure of the present invention will be further described below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0032] Example 1

[0033] A split double gutter structure for local roof systems suitable for expansion joints, such as Figures 1 and 2 As shown, it includes two gutters spaced apart and parallel to each other;

[0034] An insulation layer 5 is provided on the main purlin and a double gutter structure is arranged on the insulation layer 5. The roof system 1 on the outside of the gutter is laid on the main purlins 8 on both sides of the roof. The main purlins 7 at the bottom of the gutter on both sides of the expansion joint are disconnected at the expansion joint. The lower side of the main purlin 7 at the bottom of the gutter is supported by the diagonal braces 9 of the main purlin structure at the bottom of the gutter fixed to the main structure 10. The lower side of the main purlin 7 at the bottom of the gutter is installed with a gutter roof bottom plate 6. A U-shaped plate 61 for connecting the roof bottom plate at the expansion joint is installed between the gutter roof bottom plates 6 on both sides of the expansion joint. The U-shaped groove formed by the U-shaped plates 61 for connecting the roof bottom plates at the expansion joint is open upward, and the projection of the U-shaped plate 61 for connecting the roof bottom plates at the expansion joint completely covers the projection of the expansion joint.

[0035] Two gutters are located on both sides of the expansion joint, and gutter rods 1 for fixing the gutters are installed in the gutters;

[0036] A gutter cantilever bracket 4 is fixed on the adjacent sides of the two gutters. The gutter cantilever bracket 4 is fixed on the main purlin 7 at the bottom of the gutter. The gutter cantilever bracket 4 is located between the two gutters and the gutter cantilever brackets 4 on both sides are not connected. The roof system 21 between the gutters is laid on the gutter cantilever bracket 4. The roof system 21 between the gutters is inclined toward one gutter. A side flashing board 22 is installed on the side of the roof system 21 between the gutters near the other gutter. The side flashing board 22 and the roof system 21 between the gutters are connected to form a whole that completely covers the gap between the two gutters.

[0037] Two layers of waterproof membrane 3 are laid in the gutter. The waterproof membrane 3 extends from one gutter side from under the roof system 21 between the gutters to the other gutter side and is folded at the gutter cantilever bracket 4.

[0038] The installation steps for the split double gutter structure of the partial roof system suitable for expansion joints are as follows:

[0039] Step 1: Prepare materials and components: including metal gutters, U-shaped panels, waterproof membranes, insulation materials, main purlins, cantilever brackets, etc.

[0040] Step 2: Install the main purlins and cantilever brackets: Install the main purlins at the bottom of the gutters on both sides according to the design requirements and disconnect them at the expansion joints. Install the cantilever brackets on one side and the cantilever or vertical support on the other side.

[0041] Step 3: Install the gutter: First locate and install the gutter on both sides of the expansion joint, making sure the gutter bottom plate is flat;

[0042] Step 4: Gutter bottom plate and U-shaped plate: Lay the bottom plate of the gutter, extending directly from the bottom of the gutter on one side to the middle of the expansion joint, and connect it with the gutter bottom plates on both sides through the full-length U-shaped plate to ensure that the roof panel is flat and firm;

[0043] Step 5: Laying the insulation layer: Lay the insulation layer on the partial roof panel, and then lay the gutter according to the established path;

[0044] Step 6: Laying waterproof membrane: Lay the roof waterproof membrane at the gutter and expansion joint. Note that sufficient folds must be reserved at the expansion joint to form a continuous second waterproof layer.

[0045] Step 7: Inspection and acceptance: After all installations are completed, a comprehensive inspection is carried out to ensure that all connection points are firm, the waterproof layer is intact and undamaged, and acceptance is carried out only after it meets the design requirements.

[0046] It has been verified that the separated double-gutter structure of the local roof system suitable for expansion joints of the utility model has good adaptability. Through the separation design of the double gutter and the local roof system, the problem of gutter setting at the expansion joint is effectively solved, and the adaptability of the system to structural deformation is improved; the waterproof performance is good, the design of the second waterproof layer and the special treatment method of the waterproof membrane ensure the waterproof reliability of the expansion joint area; the construction is simplified, the complex structure of the traditional expansion joint treatment solution is simplified, and the construction difficulty and cost are reduced; the aesthetics is good, and the overall design takes into account the architectural aesthetics. The harmonious unity of the gutter and the roof improves the appearance quality of the building and has good application prospects.

[0047] Those skilled in the art should understand that they can implement variations based on the prior art and the above embodiments, which will not be described in detail here. Such variations do not affect the essence of the present invention and will not be described in detail here.

[0048] The above describes the preferred embodiments of the present invention. It should be understood that the present invention is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can use the above-mentioned disclosed methods and technical contents to make many possible changes and modifications to the technical solutions of the present invention without departing from the scope of the technical solution of the present invention, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the present invention. Therefore, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention that do not depart from the content of the technical solution of the present invention are still within the scope of protection of the technical solution of the present invention.

Claims

1. A split double gutter structure for a local roof system suitable for expansion joints, characterized by: It includes two gutters that are spaced apart and parallel to each other; Two gutters are located on either side of the expansion joint; Gutter cantilever brackets are fixed on the adjacent sides of the two gutters. The gutter cantilever brackets are located between the two gutters and the gutter cantilever brackets on both sides are not connected. The roof system between the gutters is laid on the gutter cantilever brackets. The roof system between the gutters is inclined toward one gutter. A trim flashing is installed on the side of the roof system between the gutters near the other gutter. The trim flashing and the roof system between the gutters are connected as a whole to completely cover the gap between the two gutters. A waterproof roll is laid in the gutter. The waterproof roll is extended from one gutter side under the roof system between the gutters to the other gutter side and is folded at the gutter cantilever bracket.

2. A separated double gutter structure for a local roof system suitable for expansion joints according to claim 1, characterized in that: A gutter rod for fixing the gutter is installed in the gutter.

3. The separated double gutter structure of a local roof system suitable for expansion joints according to claim 1, characterized in that: An insulation layer is provided on the main purlin and the double gutter structure is arranged on the insulation layer.

4. The separated double gutter structure of a local roof system suitable for expansion joints according to claim 1, characterized in that: The main purlins at the bottom of the gutter on both sides of the expansion joint are disconnected at the expansion joint, and the roof bottom plate at the gutter is installed on the lower side of the main purlin at the bottom of the gutter. U-shaped plates for connecting the roof bottom plates at the expansion joint are installed between the roof bottom plates at the gutter on both sides of the expansion joint, and the projection of the U-shaped plates for connecting the roof bottom plates at the expansion joint completely covers the projection of the expansion joint.

5. The separated double gutter structure of a local roof system suitable for expansion joints according to claim 4, characterized in that: The U-shaped groove formed by the U-shaped plates used for connecting the roof bottom plate at the expansion joint opens upward.

6. The separated double gutter structure of a local roof system suitable for expansion joints according to claim 4, characterized in that: The lower side of the main purlin at the bottom of the gutter is supported by the diagonal braces of the main purlin structure at the bottom of the gutter fixed on the main structure.

7. The separated double gutter structure of a local roof system suitable for expansion joints according to claim 1, characterized in that: The roof system on the outside of the gutter is laid on the main purlins of the roof on both sides.

8. The separated double gutter structure of a local roof system suitable for expansion joints according to claim 1, characterized in that: The waterproof roll has at least two layers.