Roof panel type structure and hidden mechanical fixing method thereof

Abstract

The invention relates to the field of buildings, and particularly discloses a roof panel type structure and a hidden mechanical fixing method thereof.The roof panels are provided with protruding parts, and when the roof panels are spliced and installed, the protruding parts cover the clamping parts of the adjacent roof panels and the outer sides of sliding supports clamped with the clamping parts; hidden installation of the sliding support and the self-tapping screw is achieved, and corrosion of rainwater and dust to the sliding support and the self-tapping screw is reduced. Meanwhile, the roof panels formed by compounding the metal base plates and the thermoplastic plates are adopted, the roof panels are connected in a hot melting fixing mode, a continuous waterproof interface is formed, and the waterproof sealing performance of the roof structure is further improved; besides, by means of the sliding support provided with the longitudinal sliding groove, the clamping part provided with the bending part and the protruding part, when the roof structure expands with heat and contracts with cold, the roof panel deforms longitudinally and transversely along the sliding support, and the situation that stress of the roof structure is concentrated due to expansion with heat and contraction with cold is reduced.

Description

Technical Field

[0001] The present invention relates to the field of construction, and more particularly to a roof panel structure and a hidden mechanical fixing method thereof. Background Art

[0002] Traditional roof panels are mostly fixed with exposed self-tapping screws. This installation method has significant defects: the sealing performance of the boundary joints is weak, and leakage channels are easily formed after long-term use; the installation holes formed by the contact between the screws and the panels are exposed to the environment, and rainwater and dust can easily penetrate, causing metal corrosion, and then causing fixation failure; in addition, the thermal expansion and contraction characteristics of metal materials will cause stress concentration around the screw holes, and in areas with drastic temperature changes, it is easy to cause the panels to tear along the installation holes. These problems not only affect the building's waterproof performance, but also shorten the service life of the roof system and increase subsequent maintenance costs. Summary of the Invention

[0003] 1. Technical problems to be solved

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a roof panel type structure and a hidden mechanical fixing method thereof, which can realize the hidden installation of self-tapping screws and form an integrated waterproof layer on the roof structure.

[0005] 2. Technical solution

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A roof panel structure includes a plurality of roof panels, wherein a clamping portion is provided at the right end of the roof panel, the clamping portion is clamped with a sliding bracket, the sliding bracket has a longitudinal slide groove for the clamping portion to slide longitudinally, and the sliding bracket is fixedly connected to the building base by self-tapping screws. A ridge protruding outward is provided at the left end of the roof panel away from the clamping portion, and the ridge is used to cover the clamping portion of the adjacent roof panel and the outer side of the sliding bracket clamped thereto;

[0008] The roof panel includes a metal base plate and a thermoplastic plate fixed to the outer surface of the metal base plate. The length of one end of the thermoplastic plate close to the raised portion is greater than the length of the metal base plate on the same side. Adjacent roof panels are fixedly connected by hot melt connection. The left end of the right roof panel abuts between the raised portion and the clamping portion of the left roof panel, and the abutting position of the two is fixedly connected by hot melt connection.

[0009] As a further solution of the present invention, the sliding bracket is penetrated by a sliding bolt connected to the sliding bracket in a longitudinal sliding manner. The sliding bolt is threadedly connected to the clamping portion. The sliding bracket is provided with a waist hole for the sliding bolt to slide.

[0010] As a further solution of the present invention, the cross-section of the raised portion is trapezoidal or semicircular, and the clamping portion further includes a supporting portion integrally formed with the bent portion, and the supporting portion is arranged opposite to the inner wall of the raised portion.

[0011] As a further solution of the present invention, the sliding bracket includes an integrally formed horizontal portion and an inverted U-shaped portion, the horizontal portion is provided with a through hole for a self-tapping screw to pass through, the clamping portion includes a bending portion, the bending portion includes two U-shaped portions, one of the U-shaped portions is clamped in the inverted U-shaped portion, and the other U-shaped portion is wrapped around the outer end of the inverted U-shaped portion away from the horizontal portion.

[0012] As a further solution of the present invention, a waist hole is opened on the side wall of the inverted U-shaped portion, and a threaded hole cooperating with the sliding bolt is opened on the bent portion. The sliding bolt has a multi-step frustum-shaped structure, which includes an integrally formed threaded portion, a sliding portion and a limiting portion. The threaded portion is threadedly connected to the threaded hole, the sliding portion is slidably nested in the waist hole, and the limiting portion slides against the outer wall of the inverted U-shaped portion.

[0013] As a further solution of the present invention, a pair of rubber sleeves are clamped in the waist hole, and the pair of rubber sleeves are both in contact with the two sides of the sliding part. The opposite sides of the pair of rubber sleeves are provided with arc grooves that cooperate with the sliding part, and the rubber sleeves are provided with through holes passing through themselves.

[0014] As a further solution of the present invention, the metal base plate is made of aluminum-zinc-coated steel plate, the thermoplastic plate is made of thermoplastic polyolefin elastomer or polyvinyl chloride, the thickness of the metal base plate is 0.7 mm, the thickness of the thermoplastic plate is 2.0 mm, the metal base plate and the thermoplastic plate are both made of roof panels by hot pressing, the sliding bracket is made of aluminum alloy material, and its surface is coated with a polyurethane wear-resistant coating.

[0015] A concealed mechanical fixing method for a roof panel structure comprises the following steps:

[0016] Step 1: Use self-tapping screws to fix multiple sliding brackets on the building base according to the designed distance;

[0017] Step 2: clamp the clamping parts of multiple roof panels into the longitudinal sliding grooves of the corresponding sliding brackets, and make the raised parts of adjacent roof panels cover the outer sides of the clamping parts of adjacent roof panels;

[0018] Step three: perform heat-melt welding on the abutting portions of the adjacent roof panels using a hot air welding machine to form a fusion bond at the abutting portions of the adjacent roof panels.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the advantages of the present invention are:

[0021] (1) The present invention provides a roof panel with a raised portion. When the roof panels are spliced ​​and installed, the raised portion covers the clamping portion of the adjacent roof panels and the outer side of the sliding bracket clamped therewith, thereby realizing hidden installation of the sliding bracket and the self-tapping screw, and reducing the erosion of the sliding bracket and the self-tapping screw by rainwater and dust.

[0022] (2) The present invention adopts a roof panel composed of a metal base plate and a thermoplastic plate, and adopts a hot-melt fixing method to connect the roof panels to form a continuous waterproof interface, thereby further improving the waterproof sealing performance of the roof structure.

[0023] (3) The present invention provides a sliding bracket with a longitudinal sliding groove and a clamping portion clamped therewith, so that when the roof structure expands and contracts due to heat, the roof panel deforms longitudinally along the sliding bracket, thereby reducing the stress concentration of the roof structure caused by thermal expansion and contraction, reducing the probability of shearing and tearing of the roof panel at the installation location of the self-tapping screws, and improving the stability of the connected roof structure.

[0024] (4) The present invention uses a sliding bracket with an inverted U-shaped portion and a clamping portion with a bent portion. When the roof panel expands or contracts due to heat or cold, the bent portion undergoes elastic deformation in the transverse direction of the roof panel, thereby further reducing stress concentration.

[0025] (5) The present invention provides a sliding bolt and a rubber sleeve to limit the longitudinal position of the roof panel and improve the stability of the connection between the roof panel and the sliding bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 It is a schematic diagram of the transverse cross-sectional structure of the present invention;

[0028] Figure 3 for Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0029] Figure 4 Schematic diagram of the cross-sectional structure of the roof panel of the present invention;

[0030] Figure 5 for Figure 4 Schematic diagram of the enlarged structure at B in the middle;

[0031] Figure 6 Schematic diagram of the cross-sectional structure of the sliding bracket in the present invention;

[0032] Figure 7 Schematic diagram of the clamping structure between the sliding portion and the clamping portion in the present invention;

[0033] Figure 8Schematic diagram of the explosive assembly structure of the sliding bolt in the present invention;

[0034] Figure 9 for Figure 9 Schematic diagram of the enlarged structure at C in the middle;

[0035] Figure 10 This is a schematic diagram of the state of the roof panel when it expands and contracts with heat and cold in the present invention.

[0036] Explanation of the numbers in the figure: 1. Roof panel; 101. Metal base plate; 102. Thermoplastic plate; 103. Welding part; 2. Sliding bracket; 201. Through hole; 202. Waist hole; 203. Horizontal part; 204. Inverted U-shaped part; 3. Self-tapping screw; 4. Building base; 5. Raised part; 6. Clamping part; 601. Bending part; 602. Supporting part; 603. Threaded hole; 7. Sliding bolt; 701. Threaded part; 702. Sliding part; 703. Limiting part; 8. Rubber sleeve; 801. Arc groove; 802. Through hole. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0038] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0039] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention in specific circumstances.

[0040] See also Figure 1-Figure 7In one embodiment of the present invention, a roof panel structure includes a plurality of roof panels 1. A clamping portion 6 is provided at the right end of the roof panel 1. The clamping portion 6 is clamped to a sliding bracket 2. The sliding bracket 2 has a longitudinal sliding groove for the longitudinal sliding of the clamping portion 6. The sliding bracket 2 is fixedly connected to a building base 4 by a self-tapping screw 3. A protruding portion 5 is provided at the left end of the roof panel 1 away from the clamping portion 6. The protrusion 5 is used to cover the clamping portion 6 of the adjacent roof panel 1 and the outer side of the sliding bracket 2 clamped thereto.

[0041] The roof panel 1 includes a metal base plate 101 and a thermoplastic plate 102 fixed to the outer surface of the metal base plate 101. The length of the end of the thermoplastic plate 102 close to the raised portion 5 is greater than the length of the metal base plate 101 on the same side. Adjacent roof panels 1 are fixedly connected by heat-melting. The left end of the right roof panel 1 abuts between the raised portion 5 and the clamping portion 6 of the left roof panel 1, and the abutting position of the two is fixedly connected by heat-melting.

[0042] Compared with the traditional roof panel type structure, the present invention has a roof panel 1 with a raised portion 5. When the roof panel 1 is spliced ​​and installed, the raised portion 5 covers the clamping portion 6 of the adjacent roof panel 1 and the outer side of the sliding bracket 2 clamped thereto, thereby realizing the hidden installation of the sliding bracket 2 and the self-tapping screw 3, reducing the erosion of the sliding bracket 2 and the self-tapping screw 3 by rainwater and dust; at the same time, a roof panel 1 composed of a metal base plate 101 and a thermoplastic plate 102 is adopted, and the roof panel 1 is connected by hot melting to form a continuous waterproof interface, further improving the waterproof sealing performance of the roof structure; in addition, by providing the sliding bracket 2 with a longitudinal slide groove and the clamping portion 6 clamped thereto, when the roof structure expands and contracts due to heat, the roof panel 1 undergoes longitudinal deformation along the sliding bracket 2, reducing the stress concentration of the roof structure caused by thermal expansion and contraction, reducing the probability of shearing and tearing of the roof panel 1 at the installation location of the self-tapping screw 3, and improving the stability of the connected roof structure.

[0043] See also Figure 5 、 Figure 6 and Figure 7 The sliding bracket 2 includes an integrally formed horizontal portion 203 and an inverted U-shaped portion 204. The horizontal portion 203 is provided with a through hole 201 for the self-tapping screw 3 to pass through. The clamping portion 6 includes a bending portion 601. The bending portion 601 includes two U-shaped portions, one of which is clamped in the inverted U-shaped portion 204, and the other U-shaped portion is wrapped around the outer end of the inverted U-shaped portion 204 away from the horizontal portion 203.

[0044] Specifically, through the clamping portion 6 with a bending portion 601 and the sliding bracket 2 with an inverted U-shaped portion 204, the bending portion 601 of the roof panel 1 has good toughness and can undergo elastic deformation when thermal expansion and contraction occur, further reducing the stress concentration of the roof panel 1.

[0045] See also Figure 2 The cross section of the raised portion 5 is trapezoidal or semicircular.

[0046] Specifically, the raised portion 5 and the bent portion 601 cooperate to increase the elastic deformation of the roof panel 1 during thermal expansion and contraction. In addition, the raised portion 5 with a trapezoidal or semicircular cross-section has a good impact force dispersion effect, and cooperates with the bent portion 601 to make the roof panel 1 have better impact resistance.

[0047] See also Figure 7 The clamping portion 6 further includes a supporting portion 602 integrally formed with the bending portion 601 , and the supporting portion 602 is arranged opposite to the inner wall of the raised portion 5 .

[0048] Specifically, when the raised portion 5 is under pressure, the raised portion 5 transfers the pressure to the bent portion 601 through the supporting portion 602 , further improving the pressure resistance of the raised portion 5 .

[0049] In this embodiment, the metal substrate 101 is made of galvanized steel plate, and the thermoplastic plate 102 is made of thermoplastic polyolefin elastomer or polyvinyl chloride.

[0050] Specifically, the thermoplastic plate 102 made of thermoplastic polyolefin elastomer or polyvinyl chloride has good waterproofness and is convenient for hot-melt bonding construction.

[0051] A concealed mechanical fixing method for a roof panel structure comprises the following steps:

[0052] Step 1: Use self-tapping screws 3 to fix multiple sliding brackets 2 on the building base 4 according to the designed distance;

[0053] Step 2: clamp the clamping parts 6 of multiple roof panels 1 into the longitudinal sliding grooves of the corresponding sliding brackets 2, and make the raised parts 5 of adjacent roof panels 1 cover the outer sides of the clamping parts 6 of the adjacent roof panels 1;

[0054] Step three: perform heat-melt welding on the abutting portions of the adjacent roof panels 1 by using a hot air welding machine to form a welded portion 103 at the abutting portions of the adjacent roof panels 1 .

[0055] Specifically, the sliding bracket 2 is first fixed by the self-tapping screw 3, and then one end of the roof panel 1 is fixed by the clamping part 6, and finally the adjacent roof panels 1 are fixed by hot melt welding, so that the installation operation is simple and accurate, and it is easy to form an integrated waterproof interface.

[0056] In this embodiment, the thickness of the metal substrate 101 is 0.7 mm, the thickness of the thermoplastic plate 102 is 2.0 mm, and the metal substrate 101 and the thermoplastic plate 102 are both formed into the roof panel 1 by thermoforming.

[0057] In this embodiment, when the hot air welding machine performs heat-melting processing on adjacent roof panels 1, the temperature is 200 degrees Celsius and the pressure is 0.8 MPa.

[0058] In this embodiment, the sliding bracket 2 is made of aluminum alloy and its surface is coated with a polyurethane wear-resistant coating.

[0059] See also Figure 7-10 In another embodiment of the present invention, based on the previous embodiment, the sliding bracket 2 is penetrated by a sliding bolt 7 that is longitudinally slidably connected to it, the sliding bolt 7 is threadedly connected to the clamping portion 6, and a waist hole 202 is opened on the sliding bracket 2 for the sliding bolt 7 to slide.

[0060] Specifically, the roof panel 1 is limited by providing a sliding bolt 7. When the roof panel 1 expands or contracts due to heat or cold, the sliding bolt 7 on the roof panel 1 slides longitudinally along the waist hole 202, so that the roof panel 1 has a larger elastic deformation space in the longitudinal direction.

[0061] See also Figure 7 and Figure 9 The waist hole 202 is opened on the side wall of the inverted U-shaped portion 204, and a threaded hole 603 is opened on the bent portion 601 to cooperate with the sliding bolt 7. The sliding bolt 7 has a multi-step frustum-shaped structure, which includes an integrally formed threaded portion 701, a sliding portion 702 and a limiting portion 703. The threaded portion 701 is threadedly connected to the threaded hole 603, the sliding portion 702 is slidably nested in the waist hole 202, and the limiting portion 703 slides against the outer wall of the inverted U-shaped portion 204.

[0062] Specifically, the limiting portion 703 is provided to limit the sliding bolt 7 , thereby improving the stability of the connection between the clamping portion 6 and the sliding bracket 2 .

[0063] See also Figure 9 A pair of rubber sleeves 8 are clamped in the waist hole 202, and the pair of rubber sleeves 8 are both in contact with the two sides of the sliding part 702. An arc groove 801 cooperating with the sliding part 702 is opened on the opposite side of the pair of rubber sleeves 8, and the rubber sleeve 8 is provided with a through hole 802 running through itself.

[0064] Specifically, a pair of rubber sleeves 8 are used to limit the sliding bolt 7 in the middle position of the waist hole 202, and the sliding bolt 7 is squeezed and locked, thereby reducing the probability of the sliding bolt 7 loosening and improving the stability of the connection of the sliding bolt 7. When the roof panel 1 slides longitudinally, the sliding bolt 7 squeezes the rubber sleeve 8 and the through hole 802 is compressed.

[0065] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed by the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A roof panel structure, characterized in that: The invention comprises a plurality of roof panels (1), wherein a clamping portion (6) is provided at the right end of each roof panel (1), a sliding bracket (2) is clamped to the clamping portion (6), a longitudinal sliding groove is provided on the sliding bracket (2) for the longitudinal sliding of the clamping portion (6), the sliding bracket (2) is fixedly connected to the building base (4) by self-tapping screws (3), and a raised portion (5) protruding outward is provided at the left end of each roof panel (1) away from the clamping portion (6), and the raised portion (5) is used to cover the outer side of the clamping portion (6) of the adjacent roof panel (1) and the sliding bracket (2) clamped thereto; The roof panel (1) comprises a metal base plate (101) and a thermoplastic plate (102) fixed to the outer surface of the metal base plate (101); the length of one end of the thermoplastic plate (102) close to the raised portion (5) is greater than the length of the metal base plate (101) on the same side; adjacent roof panels (1) are fixedly connected by means of a hot melt connection; the left end of the right roof panel (1) abuts between the raised portion (5) and the clamping portion (6) of the left roof panel (1), and the abutting position of the two is fixedly connected by means of a hot melt connection.

2. A roof panel structure according to claim 1, characterized in that: The sliding bracket (2) is penetrated by a sliding bolt (7) connected to the sliding bracket in a longitudinal sliding manner. The sliding bolt (7) is threadedly connected to the clamping portion (6). The sliding bracket (2) is provided with a waist hole (202) for the sliding bolt (7) to slide.

3. A roof panel structure according to claim 2, characterized in that: The raised portion (5) has a trapezoidal or semicircular cross-section, and the clamping portion (6) further comprises a supporting portion (602) integrally formed with the bent portion (601), the supporting portion (602) being arranged opposite to the inner wall of the raised portion (5).

4. A roof panel structure according to claim 3, characterized in that: The sliding bracket (2) includes an integrally formed horizontal portion (203) and an inverted U-shaped portion (204), the horizontal portion (203) is provided with a through hole (201) for the self-tapping screw (3) to pass through, the clamping portion (6) includes a bending portion (601), and the bending portion (601) includes two U-shaped portions, one of which is clamped in the inverted U-shaped portion (204), and the other U-shaped portion is wrapped around the outer end of the inverted U-shaped portion (204) away from the horizontal portion (203).

5. A roof panel structure according to claim 4, characterized in that: The waist hole (202) is provided on the side wall of the inverted U-shaped portion (204); a threaded hole (603) cooperating with the sliding bolt (7) is provided on the bending portion (601); the sliding bolt (7) is in a multi-step truncated cone structure, comprising an integrally formed threaded portion (701), a sliding portion (702) and a limiting portion (703); the threaded portion (701) is threadedly connected to the threaded hole (603); the sliding portion (702) is slidably nested in the waist hole (202); and the limiting portion (703) is slidably abutted against the outer wall of the inverted U-shaped portion (204).

6. A roof panel structure according to claim 5, characterized in that: A pair of rubber sleeves (8) are clamped in the waist hole (202), and the pair of rubber sleeves (8) are both in contact with both sides of the sliding portion (702). An arc groove (801) cooperating with the sliding portion (702) is provided on opposite sides of the pair of rubber sleeves (8), and a through hole (802) is provided through the rubber sleeves (8).

7. A roof panel structure according to claim 1, characterized in that: The metal substrate (101) is made of galvanized steel plate, and the thermoplastic plate (102) is made of thermoplastic polyolefin elastomer or polyvinyl chloride. The thickness of the metal substrate (101) is 0.7 mm, and the thickness of the thermoplastic plate (102) is 2.0 mm. The metal substrate (101) and the thermoplastic plate (102) are formed into a roof panel (1) by hot pressing. The sliding bracket (2) is made of aluminum alloy material, and its surface is coated with a polyurethane wear-resistant coating.

8. A concealed mechanical fixing method for a roof panel structure according to claim 1, characterized in that: The steps include: Step 1: Fix multiple sliding brackets (2) on the building base (4) according to the designed distance using self-tapping screws (3); Step 2: clamping the clamping portions (6) of the plurality of roof panels (1) into the longitudinal sliding grooves of the corresponding sliding brackets (2), and making the raised portions (5) of the adjacent roof panels (1) cover the outside of the clamping portions (6) of the adjacent roof panels (1); Step three: using a hot air welding machine to perform heat-melt welding on the abutting portions of the adjacent roof panels (1), thereby forming a welded portion (103) at the abutting portions of the adjacent roof panels (1).

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