Metal roof with screw clamps
By welding screws on the metal roof purlins and locking them through the convex of the pressed metal plate, the problem of insufficient wind resistance in extreme weather conditions is solved, and the fixing strength and stability of the inner layer structure are significantly enhanced.
Patent Information
- Application Number
- CN202420598601.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-03-26
AI Technical Summary
The existing metal roof is prone to wind shedding and overturning accidents under extreme weather conditions, and the lack of vertical fixation of the inner layer structure leads to insufficient wind shedding resistance.
The metal roof design is adopted with screw clamps. The screw is welded on the roof purlins. The screw extends to the protrusion of the pressed metal plate and is locked by fasteners to enhance the fixing strength of the inner layer structure and disperse the wind force by multiple points.
It significantly enhances the fixed strength of the inner layer structure of the metal roof, can evenly disperse the wind force under strong wind conditions, reduce local stress, avoid wind shedding and overturning accidents, and ensures that the roof system maintains stability and durability under harsh climate conditions.
Smart Images
Figure CN222632661U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of metal roof construction, in particular to a metal roof with a screw clamp. Background Art
[0002] With the rapid development of modern construction technology, large-span steel structure buildings have been increasingly valued for their economic, beautiful and long service life, and are widely used in industrial buildings, commercial facilities, large venues, etc. However, with the widespread application, the safety issues of metal roofs have become increasingly prominent, especially in terms of resisting natural disasters, and the existing metal roof structures have exposed certain vulnerabilities. Specifically, when metal roofs are hit by strong typhoons and severe weather, they often suffer from wind-up and overturning accidents, exposing the shortcomings of their inner structure in vertical fixation. Although the existing design has taken many measures to enhance the stability of the inner structure, it still cannot effectively solve the problem of metal roofs' wind-up resistance under extreme weather conditions. Utility Model Content
[0003] In order to overcome the defects of the prior art, the technical problem to be solved by the utility model is to propose a metal roof with a screw clamp, adopting the following technical solutions:
[0004] The utility model provides a metal roof with a screw clamp, comprising a roof purlin, on which a bottom plate layer, a first functional layer and a corrugated metal sheet are sequentially laid, the corrugated metal sheet is evenly distributed with a plurality of protrusions in a direction perpendicular to the roof purlin, the roof purlin is fixed with a plurality of screws, the screws extend and penetrate to the upper ends of the protrusions, and are locked downwards by fasteners to compress the corrugated metal sheet.
[0005] As a further improvement, a bracket is arranged on the outer side of the screw rod, the bracket is clamped on the two side surfaces of the protrusion and fixed to the corrugated metal plate.
[0006] As a further improvement, it also includes a connecting piece, which is arranged between the fastener and the protrusion and is used to press the corrugated metal plate.
[0007] As a further improvement, the connecting member is U-shaped, and its two side walls abut against the inner wall of the bracket.
[0008] As a further improvement, at least one bolt is provided in the middle of the side wall of the bracket, and the bolt passes through the connecting piece.
[0009] As a further improvement, a "J"-shaped purlin is fixedly provided on the upper end of the bracket.
[0010] As a further improvement, a second functional layer is laid on the upper end of the corrugated metal plate, and the upper surface of the second functional layer is flush with the upper surface of the above-mentioned "X"-shaped purlin.
[0011] As a further improvement, a structural layer, a third functional layer and a decorative layer are sequentially laid on the upper end of the above-mentioned I-shaped purlin.
[0012] As a further improvement, the screw rod is made of carbon steel, and the lower end is welded to the roof purlin.
[0013] As a further improvement, the longitudinal section of the protrusion is a trapezoid that is narrow at the top and wide at the bottom.
[0014] Compared with the prior art, the beneficial effects of the utility model are:
[0015] Firstly, the utility model has a plurality of screws welded on the roof purlins, the screws extend upward and pass through the upper end of the protrusion of the corrugated metal plate, and are locked downward by fasteners to achieve the effect of pressing the metal plate downward, thereby significantly enhancing the fixing strength of the inner structure of the metal roof. When subjected to strong winds, multiple screws can achieve multi-point fixation, which can evenly disperse the wind force, reduce local stress, and avoid wind-lifting and overturning accidents caused by excessive wind force on the edges, so that the entire roof system can maintain stability and durability even under the influence of severe weather conditions for a long time.
[0016] Secondly, the utility model is provided with a bracket on the outside of the screw rod, which plays the role of supporting the upper structure and protecting the exposed head of the upper end of the screw rod. The bracket is clamped on the two sides of the protrusion of the corrugated metal plate and fixed to the corrugated metal plate. When subjected to strong winds, the gas flow rate outside the metal roof is too large, and negative pressure is formed inside and outside, so that the structural layer inside the metal roof is subjected to lifting force in stages. As a component connecting the upper and lower parts, the bracket can not only effectively disperse the impact of wind force, but also further increase the stability of the multi-layer structure of the metal roof, and avoid the loosening of internal connectors or metal fatigue.
[0017] Thirdly, the utility model further provides a U-shaped connector between the fastener and the protrusion, the two side walls of the connector abut against the inner wall of the bracket, and the fastener is locked downward to make the connector press the corrugated metal plate downward. Compared with directly locking downward by the fastener, the connector increases the downward pressing area, reduces stress concentration, and further improves the life of the structure and the tightness of the inner structure of the metal roof. At the same time, a bolt is further provided in the middle of the bracket, and the bolt passes through the two side walls of the connector at the same time, which increases the stability of the bracket and the connector, and prevents the upper structure load from damaging or even deforming the bracket. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the following is a brief introduction to the drawings required for use in the implementation mode. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 It is a partial structural schematic diagram of the front section of the utility model;
[0020] Figure 2 It is a schematic diagram of the assembly of the screw clamp and its accessories of the utility model;
[0021] Figure 3 for Figure 2 Schematic diagram of another view of the component.
[0022] Reference numerals:
[0023] 100-roof purlin; 200-bottom plate layer; 300-first functional layer; 400-corrugated metal sheet; 401-protrusion; 500-second functional layer; 600-S-shaped purlin; 700-structural layer; 800-third functional layer; 900-decorative layer;
[0024] 1-screw; 2-fastener; 3-bracket; 4-connector;
[0025] 31-Bolts. DETAILED DESCRIPTION
[0026] In order to facilitate understanding by those skilled in the art, the structure of the present invention is further described in detail with reference to the accompanying drawings:
[0027] In the description of the present invention, the terms "first" and "second" are used only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. The terms "upper", "lower", "side", "end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention.
[0028] like Figure 1As shown, the present application provides a metal roof with a screw 1 clamp, including a roof purlin 100, on which a base plate layer 200, a first functional layer 300 and a corrugated metal sheet 400 are sequentially laid, and the corrugated metal sheet 400 has a plurality of protrusions 401 evenly distributed in a direction perpendicular to the roof purlin 100, and the roof purlin 100 is fixed with a plurality of screws 1, which extend and pass through the upper end of the protrusion 401, and are locked downward by a fastener 2, so as to compress the corrugated metal sheet 400.
[0029] In a specific embodiment, the roof purlin 100 is a square steel pipe or an H-shaped steel pipe, which is evenly arranged horizontally on the top of the main building according to the construction layout drawing, and is fixed by welding or connectors 4. The spacing is usually 1 to 1.5 m. It is usually necessary to arrange densely near the peripheral area of the roof, and the spacing in the dense area is 0.6 to 1 m. A plurality of screws 1 are welded on the upper end surface of the roof purlin 100. The material of the screw 1 is carbon steel. The number of screws 1 is determined by the number of protrusions 401 of the corrugated metal sheet 400. The screws 1 can be distributed in the peripheral area of the roof or can be set on the entire roof. The bottom plate layer 200 is preferably a galvanized steel plate, which is punched at the corresponding screw 1 and penetrated through the screw 1 and laid on the upper end surface of the roof purlin 100. Glass wool is laid on the bottom plate layer 200 as the first functional layer 300, which has good sound absorption and heat preservation performance. During installation, the glass wool is pierced through by the screw 1 and then laid on the bottom plate layer 200. For the first functional layer 300 with other functions, it can be laid by pre-punching or bypassing the screw 1. A corrugated metal sheet 400 is laid on the upper end of the first functional layer 300 as the inner structural plate. The corrugated metal sheet 400 is processed by pressing to form a number of evenly distributed protrusions 401. The longitudinal sections of these protrusions 401 are trapezoidal with narrow upper and wide lower parts, and their length direction is perpendicular to the length direction of the roof purlin 100. The protrusion 401 structure can enhance the strength of the roof and improve the wind resistance of the roof. After the corrugated metal sheet 400 is laid on the upper end of the first functional layer 300 by pre-punching through the screw 1, a nut is screwed downward at the upper end of the screw 1 to press the corrugated metal sheet 400 downward. Under the action of the pressed metal plate and the screw 1, the inner structure of the entire metal roof is connected more tightly, and when subjected to strong winds, the wind force can be evenly dispersed, local stress can be reduced, and wind-lifting and overturning accidents caused by excessive wind force can be avoided. Furthermore, a spring washer and a rubber washer are arranged between the nut and the upper surface of the protrusion 401 to prevent the nut from loosening.
[0030] like Figure 1-Figure 3 As shown, a bracket 3 is arranged on the outer side of the screw rod 1, the bracket 3 is clamped on the two sides of the protrusion 401, and is fixed to the above-mentioned corrugated metal plate 400. A connecting member 4 is also included, and the connecting member 4 is arranged between the above-mentioned nut and the protrusion 401 for pressing the above-mentioned corrugated metal plate 400.
[0031] In a specific embodiment, the bracket 3 is in a U shape and is arranged along the length direction of the roof purlin 100, forming several rows. The two sides of the bracket 3 are clamped on both sides of the protrusion 401, and the lower end is fixedly connected to the pressed metal plate through bolts 31. The bracket 3 serves to support the upper structure and protect the exposed upper end of the screw 1. When strong winds occur, the gas flow rate outside the metal roof is too high, creating a negative pressure inside and outside, causing the internal structural layer 700 of the metal roof to intermittently bear an uplifting force. As a component connecting the upper and lower parts, the bracket 3 can not only effectively disperse the impact of the wind force, but also further increase the stability between the multi-layer structures of the metal roof, preventing the internal connecting piece 4 from loosening or experiencing metal fatigue.
[0032] Furthermore, the connecting piece 4 is U-shaped, and its two side walls are in contact with the inner walls of the bracket 3. On the one hand, this increases the stability of the connecting piece 4 and the bracket 3. On the other hand, the connecting piece 4 provides a certain amount of support to the side wall of the bracket 3, enhancing the stability of the bracket 3 in supporting the upper structure. The upper end of the connecting piece 4 passes through the screw 1. When the fastener 2 is tightened downward, the pressed metal plate is pressed downward through the connecting piece 4. Compared with directly tightening downward through the fastener 2, the connecting piece 4 increases the downward pressure area, reduces stress concentration, and further improves the service life of the structure and the tightness of the inner layer structure of the metal roof.
[0033] As Figure 1 shown, at the upper end of each row of brackets 3, a U-shaped purlin 600 is fixedly installed, and the U-shaped purlin 600 is arranged parallel to the roof purlin 100. A second functional layer 500 is laid on the upper end of the profiled metal plate 400, and the upper surface of the second functional layer 500 is flush with the upper surface of the U-shaped purlin 600.
[0034] As Figure 1-Figure 3 shown, at least one bolt 31 is provided in the middle of the side wall of the bracket 3, and the bolt 31 passes through the above-mentioned connecting piece 4 at the same time.
[0035] In a specific embodiment, the second functional layer 500 is thermal insulation rock wool, specifically including cross-wired rock wool with fibers parallel to the plate surface and vertical-wired rock wool with fibers perpendicular to the plate surface.
[0036] In a specific embodiment, the height of the bracket 3 is adapted to the thickness of the second functional layer 500. When the thickness of the second functional layer 500 is too high, the excessive height of the bracket 3 will reduce the stability of its support for the upper structure. Therefore, two bolts 31 are provided in the middle of the bracket 3, and the bolts 31 penetrate from one side of the bracket 3 to the other side, passing through the connecting piece 4 at the same time, preventing displacement and deformation between the structures and enhancing the supporting force of the bracket 3.
[0037] As Figure 1As shown, the upper end of the "X"-shaped purlin 600 is sequentially laid with a structural layer 700, a third functional layer 800 and a decorative layer 900. In a specific embodiment, the structural layer 700 is a galvanized steel plate, the third functional layer 800 is an aluminum-magnesium-manganese plate laid on the structural layer 700, and the decorative layer 900 is installed on the upper layer of the aluminum-magnesium-manganese plate according to design requirements.
[0038] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A metal roof with a screw clamp, characterized in that: The invention comprises a roof purlin (100), on which a base plate layer (200), a first functional layer (300) and a corrugated metal sheet (400) are sequentially laid, the corrugated metal sheet (400) being provided with a plurality of protrusions (401) evenly distributed in a direction perpendicular to the roof purlin (100), the roof purlin (100) being fixed with a plurality of screw rods (1), the screw rods (1) extending and penetrating to the upper ends of the protrusions (401), and being locked downwards by fasteners (2) for pressing the corrugated metal sheet (400).
2. A metal roof with a screw clamp as claimed in claim 1, characterized in that: A bracket (3) is arranged on the outside of the screw rod (1), and the bracket (3) is clamped on the two side surfaces of the protrusion (401) and fixed to the corrugated metal plate (400).
3. A metal roof with a screw clamp as claimed in claim 2, characterized in that: It also comprises a connecting piece (4), wherein the connecting piece (4) is arranged between the fastener (2) and the protrusion (401) and is used for pressing the corrugated metal plate (400).
4. A metal roof with a screw clamp as claimed in claim 3, characterized in that: The connecting piece (4) is U-shaped, and its two side walls abut against the inner wall of the bracket (3).
5. A metal roof with a screw clamp as claimed in claim 4, characterized in that: At least one bolt (31) is provided in the middle of the side wall of the bracket (3), and the bolt (31) passes through the connecting piece (4).
6. A metal roof with a screw clamp as claimed in claim 3, characterized in that: A "J"-shaped purlin (600) is fixedly provided on the upper end of the bracket (3).
7. A metal roof with a screw clamp as claimed in claim 6, characterized in that: A second functional layer (500) is laid on the upper end of the corrugated metal plate (400), and the upper surface of the second functional layer (500) is flush with the upper surface of the "X"-shaped purlin (600).
8. A metal roof with a screw clamp as claimed in claim 7, characterized in that: A structural layer (700), a third functional layer (800) and a decorative layer (900) are sequentially laid on the upper end of the "X"-shaped purlin (600).
9. A metal roof with a screw clamp as claimed in claim 1, characterized in that: The screw rod (1) is made of carbon steel, and its lower end is welded to the roof purlin (100).
10. A metal roof with a screw clamp as claimed in claim 1, characterized in that: The longitudinal section of the protrusion (401) is a trapezoid that is narrow at the top and wide at the bottom.