CN218437855U - Film-coated metal groove type groove - Google Patents

Abstract

The utility model provides a film-coated metal trough type ditch, which is characterized by comprising a U-shaped part, a lap joint part and a covering part; the U-shaped part comprises a left side wall, a right side wall and a bottom, wherein at least one side wall is provided with an overlapping part which is turned outwards at the top edge of the side wall, and an included angle is formed at the joint of the overlapping part and the side wall and is used for forming fixed connection with a roof structure; the covering part is connected with the side wall, is separated from the lap joint part and is used for covering the part of the lap joint part, which is connected with the roof structure; wherein, the U-shaped part is TPO tectorial membrane metal sheet. The utility model discloses a film-coated metal groove-shaped groove uses TPO film-coated metal plate to enhance the service life and waterproof effect of the film-coated metal groove-shaped groove; the film-coated metal groove-shaped groove has hot air weldability, and can be welded with a waterproof coiled material which can be welded by hot air to form a whole, so that water leakage is effectively prevented.

Description

Film-coated metal groove type groove

Technical Field

The utility model relates to a building field especially relates to a tectorial membrane metal slot type ditch.

Background

In order to realize organized drainage of buildings, drainage gutter-shaped gutters such as drainage gutter or parapet gutter (outer gutter) are often additionally arranged on a concave part between two crotches of a roof of a building. Rainwater dropping on the roof is collected by the drainage groove type ditch and then drained by the rainwater pipe. The drainage groove type ditch is used as an important link of a roof waterproof system, and influences whether roof drainage, particularly sloping roof drainage, can timely finish water falling diversion and drainage when the rainfall is large. However, gutter-type gutters such as gutter or gutter may be exposed, or soaked in water for a long time, have a short service life, and are highly susceptible to corrosion and leakage. The lap joint mode of the drainage groove type ditch and the roof is a key structure of the stability of the drainage ditch, and meanwhile, the lap joint mode is also a weak link of a waterproof system, and a water seepage and leakage point is easy to occur. If serious water seepage and leakage occur, the use of a roof drainage system can be influenced, and the service life of the roof system can also be influenced. The service life of the common gutter is short and is not consistent with that of a roof, and the maintenance cost is increased. With the risk of leakage.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a technical problem who solves lies in, how to provide a tectorial membrane metal slot type ditch, can match the life of roofing, and the installation back forms wholly with the roofing simultaneously, reduces the risk of seepage.

In order to solve the technical problem, the utility model provides a film-coated metal groove type trench, which comprises a U-shaped part, a lap joint part and a covering part; the U-shaped part comprises a left side wall, a right side wall and a bottom, wherein at least one side wall is provided with an overlapping part which is turned outwards at the top edge of the side wall, and an included angle is formed at the joint of the overlapping part and the side wall and is used for forming fixed connection with a roof structure; the covering piece is connected with the side wall, is separated from the lap joint part and is used for covering the part of the lap joint part, which is connected with the roof structure; wherein, the U-shaped part is TPO tectorial membrane metal sheet.

In a feasible implementation manner, the TPO film-coated metal plate sequentially comprises a TPO layer, a glue film layer and a first metal plate layer from top to bottom along the thickness direction.

In one possible implementation, the lap joint includes a second sheet metal layer integrally formed with the first sheet metal layer; the covering piece comprises a first covering piece which is integrally formed with the TPO layer of the U-shaped part; the overlapping part and the first covering part on the same side are connected at the top edge of the side wall and are used for covering the overlapping part of the roof structure and the overlapping part.

In a possible implementation manner, the lap joint part is integrally formed with the U-shaped part, the covering element comprises a second covering element, one end of the second covering element is fixed to the inner side of the side wall, the other end of the second covering element extends to at least the far end of the lap joint part, and the second covering element is used for covering the part, overlapped with the lap joint part, of the roof structure.

In one possible implementation, the cover includes a first cover and a second cover; the first covering piece and the TPO layer of the U-shaped part are integrally formed; one end of the second covering part is welded and fixed with the inner side of the side wall through hot air, and the other end of the second covering part at least extends to the far end of the lap joint part; the first cover is between the second cover and the lap joint; the second covering piece is used for covering the part of the roof structure, which is overlapped with the overlapping part.

In one possible implementation, the coated metal trough-type trench is installed on the roofing structure, which includes a roof panel, a support structure, and a drainage ditch; the roof panels comprise a first roof layer and a second roof layer, the supporting structure supports the roof panels and/or the drainage ditches, and at least one side of the drainage ditches is fixedly connected with the roof panels; the film-coated metal groove-shaped groove is fixed on the drainage ditch, at least one side of the film-coated metal groove-shaped groove is fixedly connected with the roof structure, and the lap joint part of the connection side is fixed on the first roof layer or the second roof layer or the supporting structure; and the covering piece of the film-coated metal groove type groove covers the lap joint position of the roof structure and the lap joint part.

In a possible implementation manner, the roof structure further includes a parapet, one side of the drainage ditch is fixedly connected with the roof panel, and the other side of the drainage ditch is connected with the parapet; the laminated metal groove-shaped groove is fixed on the drainage ditch, one side of the laminated metal groove-shaped groove is fixedly connected with the roof panel, and the other side of the laminated metal groove-shaped groove is fixedly connected with the parapet wall.

In one possible implementation, the film-coated metal groove-shaped groove is fixed to the roof panel, the supporting structure, the groove-shaped groove and/or the parapet through a fastener, a third covering piece covers the fastener, and the third covering piece and the film-coated metal groove-shaped groove are in hot air welding fixation in a communication mode.

In one possible implementation, the adjacent film-coated metal groove-type grooves are in butt joint with each other in a flat mode, and the butt joint seam covers the waterproof coiled material.

In one possible implementation, the cover is a PVC waterproofing membrane or a TPO waterproofing membrane.

Implement the utility model discloses, following beneficial effect has:

1. the TPO film-coated metal plate is used for prolonging the service life and enhancing the waterproof effect of the film-coated metal groove-shaped groove;

2. the covering piece of the coated metal groove-shaped groove has hot air weldability, and can be welded with a waterproof coiled material which can be welded by hot air to form a whole, so that water leakage is effectively prevented;

3. the waterproof coiled material is covered outside the fastener, so that the fastener is prevented from being corroded due to exposure, and the leakage risk caused by the fastener is also avoided.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application and are not to be construed as limiting the application.

Fig. 1 is a schematic diagram of an exemplary configuration of a coated metal grooved trench according to some embodiments of the present invention;

fig. 2 is a schematic view of another exemplary structure of a coated metal grooved trench according to some embodiments of the present invention;

FIG. 3 is a schematic view of another exemplary configuration of a laminated metal channel trench in accordance with certain embodiments of the present invention;

FIG. 4 is a schematic view of another exemplary structure of a coated metal trench according to FIG. 1;

FIG. 5 is an exemplary structural schematic diagram of an installation including the coated metal channel trench of FIG. 1;

FIG. 6 is an exemplary structural schematic diagram of an installation including the film-covered metal channel trench of FIG. 2;

FIG. 7 is a schematic diagram of an exemplary configuration of an installation including a coated metal channel trench as shown in a-3 of FIG. 4;

FIG. 8 is an exemplary schematic structural view of another installation of a laminated metal channel trench in accordance with certain embodiments of the present invention;

fig. 9 is an exemplary structural schematic diagram of an adjacent laminated metal channel trench installation scenario, according to some embodiments of the present invention.

Reference numbers in the figures: 100-coated metal channel-type trench, 11-U-shaped portion, 111-bottom, 112-side wall, 12-lap, 12' -turnover, 13-cover, 131-first cover, 132-second cover, 200-roofing structure, 21-roofing layer, 211-first roofing layer, 212-second roofing layer, 22-gutter, 221-gutter bottom, 222-gutter side wall, 223-gutter turnover, 23-support structure, 24-parapet, 25-flashing, 300-fastener, 400-third cover.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, fig. 1 is a schematic diagram illustrating an exemplary structure of a coated metal grooved trench according to some embodiments of the present invention, and a coated metal grooved trench 100-1 as shown in fig. 1 includes a U-shaped portion 11, a lap portion 12, and a cover 13. The U-shaped portion 11 includes left and right side walls 112 and a bottom 111. The two side walls 112 are both folded outwards at the top edges to form two overlapping parts 12, the two overlapping parts 12 respectively form a bending structure with the side walls 112 connected with the two overlapping parts, and the angle of the bending structure can be a right angle and can also be adjusted to an obtuse angle or even an acute angle according to the gradient of the installed roof structure. Both overlap joints 12 are intended for a fixed connection in the roofing structure. For example, it may be fixed by fasteners, which may be screws or beads and screws, etc. The covering 13-1 includes a first covering 131, and the first covering 131 is used to cover a portion of the roof structure overlapping the overlapping portion 12-1.

The U-shaped portion may be a TPO film-coated metal plate. TPO tectorial membrane metal sheet, U type portion include TPO layer, rete and first sheet metal layer from last to down in proper order along thickness direction promptly. TPO material is a sheet thermoplastic rubber elastic waterproof material which is made by using vinyl resin as a base material and adopting a polymerization technology and a specific formula. TPO waterproof material has weldability, and the formula can be adjusted according to actual requirements. For example, light stabilizers that block or absorb ultraviolet energy may be added to the formulation to eliminate or slow the possibility of photochemical reactions and prevent or retard photoaging of the TPO material when exposed to light. Fire retardant components such as magnesium hydroxide can also be added to the formulation to increase the flame retardant capability of the TPO material.

Further, the TPO layer may be replaced by other hot air weldable waterproof layers, such as a PVC layer. The adhesive film layer is positioned between the TPO layer and the first metal plate layer and is used for tightly adhering the TPO layer and the first metal plate layer. The thickness of the adhesive film layer can be 0.02mm-0.08mm. The film layer can be polyolefin high-molecular film, or can be formed by high-molecular polymerization of polyethylene-ester copolymer, polyolefin copolymer, etc. The adhesive film layer can be prepared by adopting the processes of casting, film spraying or film blowing and the like. And after the TPO layer and the adhesive film layer are preheated and compounded through rolling, the TPO layer and the adhesive film layer are hot-pressed and compounded with the first metal plate layer. Along thickness direction, first sheet metal layer is located the bottom, closely adheres through the rete and TPO layer, and thickness can be 0.4mm-0.8mm. The first metal plate layer can be a metal plate such as a steel plate, an aluminum manganese plate, a copper plate, an iron plate, a tin plate or a galvanized steel plate, an aluminum-galvanized steel plate and the like. According to application scenes or requirements, a metal plate made of materials with high weather resistance or corrosion resistance and the like can be selected, and the weather resistance and corrosion resistance of the film-coated metal groove can be improved. TPO tectorial membrane metal sheet life is of a specified duration, and is resistant to weather corrosion, effectively prolongs the life in tectorial membrane metal slot type ditch. The weldability on TPO layer enables the laminated metal groove type groove to be welded on a roof structure through hot air welding, the hot air welding airtightness is good, and the risk of leakage is effectively reduced.

The lap joint portion 12 is formed of a second metal plate layer, the second metal plate layer of the lap joint portion 12 is integrally formed with the first metal plate layer of the U-shaped portion 11, and the first cover 131 is integrally formed with the TPO layer of the U-shaped portion 11. The first cover 131 is connected to the side wall 112 at the top edge thereof, and is separated from the overlapping part 12.

Referring to fig. 2, fig. 2 is another exemplary structural schematic of a coated metal trough-type trench, according to some embodiments of the present disclosure. The metal-coated groove 100-2 shown in fig. 2 also includes: a U-shaped portion 11, a lap portion 12 and a cover 13. The U-shaped portion 11 is the same as the U-shaped portion 11 of the metal-coated groove 100-1 in fig. 1. The two side walls 112 are both folded outwards at the top edges to form two overlapping parts 12, the two overlapping parts 12 respectively form a bending structure with the side wall 112 connected with the two overlapping parts, and similarly, the angle of the bending structure can be a right angle, and can also be adjusted to an obtuse angle or even an acute angle according to the gradient of the installed roof structure. Both overlap joints 12 are used for a fixed connection to the roof structure. The lap portion 12 is formed of a TPO film-coated metal plate, and the lap portion 12 is integrally formed with the TPO film-coated metal plate constituting the U-shaped portion 11. Cover 13 includes a second cover 132. One end of the second cover 132 is fixedly connected to the side wall 112 of the U-shaped portion 11. For example, the connection is fixed by hot air welding. The other end extends at least as far as the distal end of the bridge portion 12. For example, the other end of the second covering member 132 may be extended as long as the overlapping part 12, or may be extended longer than the overlapping part 12, so that the second covering member 132 may better cover the portion of the roofing structure overlapping the overlapping part 12 when the roofing structure fixedly connected to the channel 100 is too thick.

Referring to fig. 3, fig. 3 is another exemplary structural schematic of a laminated metal channel trench according to some embodiments of the present invention. The metal-coated groove 100-3 shown in fig. 3 has a structure similar to that of the metal-coated groove 100-1 shown in fig. 1, and also includes: a U-shaped portion 11, a lap portion 12 and a cover 13. The U-shaped part 11 and the bridging part 12 are the same as the U-shaped part 11 and the bridging part 12 of the metal-coated groove 100-1 in FIG. 1. The lap joint portion 12 is integrally formed with the first sheet metal layer of the U-shaped portion 11. Except that the cover 13 covering the metal channel groove 100-3 includes a first cover 131 and a second cover 132. The first sheathing member 131 is integrally formed with the TPO layer of the U-shaped portion 11. The first cover 131 is between the second cover 132 and the lap 12. The second cover member 132 has one end fixedly connected to the side wall 112 of the U-shaped portion 11 and the other end extended at least to the distal end of the bridging portion 12, and has a length greater than that of the first cover member. When the metal-clad trough 100 is installed, the first cover 131 may overlap the roof structure together with the overlapping portion 12, or may cover the overlapping portion of the roof structure and the overlapping portion 12 together with the second cover 132. The second cover 132 is used to cover the portion of the roof structure that overlaps the lap joint.

Referring to fig. 4, fig. 4 is a schematic view of another exemplary structure of a film-covered metal trench according to fig. 1. The structure of the metal-coated grooved trench shown as a in fig. 4 can be referred back to the metal-coated grooved trench 100-1 in fig. 1, and both side walls thereof are folded outwards to form overlapping parts and are connected with covering parts. In the metal-coated groove shown in a-1 of fig. 4, only one side wall may be folded outward to form a lap joint part, and a covering member may be connected to the same side to form a structure similar to a shape. While the other sidewall is not folded over and has no cover. As shown in a-2 of fig. 4, only one side wall may be folded outwards to form the overlapping part, and the covering part is connected to the same side to form the structure similar to a. And the other side wall is not folded, but a covering part is connected to the side wall, one end of the covering part is connected with the side wall, and the other end of the covering part extends to at least the top end of the side wall. It is also possible that only one side wall is turned over to form the overlapping part and the covering part is connected to the same side to form the structure similar to the structure of a in fig. 4 as shown in a-3 in fig. 4. And the other side wall is turned outwards, but the side wall is not connected with the covering part, and the top end of the side wall is far from the bottom surface by a distance which is larger than the distance from the side wall with the covering part to the bottom surface.

The coated metal channel-type trench, as shown in figures 1-3, is primarily intended for installation in a drainage trench of a roof structure with roof panels on both sides. Such as a gutter. The metal-coated trough-type ditches shown as a-1, a-2 and a-3 in fig. 4 are mainly installed on a drainage ditch with a roof plate on one side and a parapet wall on the other side and the like. For example a parapet wall gutter.

Further, referring to fig. 1-4, when the disclosed laminated metal channel-type groove is installed on the gutter in the parapet-like wall, the overlapping part and the covering part on one side of the structure can be similar to the structure on any one side of any laminated metal channel-type groove in fig. 1-3, and the other side can be similar to the structure on the left side of any laminated metal channel-type groove in a-1, a-2 or a-3 in fig. 4. For example, it may be that only one side wall is folded outwardly at its top edge to form the lap joint. The lap joint part and the TPO film-coated metal plate forming the U-shaped part are integrally formed. One end of the second covering part is fixedly connected with the side wall, and the other end of the second covering part at least extends to the far end of the lap joint part. For example, as shown in fig. 2 for the overlapping portion and the covering member on one side of the metal-coated groove 100-2. The other side wall is not folded over and has no cover. For example, the bridging portion and the covering member on the left side of the metal-coated groove as shown in a-1 in fig. 4. For another example, only one of the side walls may be folded outwardly at its top edge to form the lap joint. The lap joint portion is integrated into one piece with the first sheet metal layer of U type portion. The first covering piece and the TPO layer of the U-shaped part are integrally formed. One end of the second covering part is fixedly connected with the side wall, and the other end of the second covering part at least extends to the far end of the lap joint part. For example, as shown in FIG. 3 for the overlay and cover on one side of the metal-clad channel-type trench 100-3. The other side wall is not folded over and has no cover. For example, the overlap and cover on the left side of the metal channel trench are coated as in a-1 in FIG. 2. And so on. That is, the overlapping part and the covering part of the side where the laminated metal channel is fixed to the roof panel in an overlapping manner are the same as those in any of fig. 1 to 3, and the overlapping part and the covering part of the side where the laminated metal channel is fixed to a parapet or the like are not folded to form the overlapping part and not have the covering part, or the covering part is connected but not folded to form the overlapping part, or the overlapping part is folded but not have the covering part, or one side comprises the first covering part and the second covering part, and the other side only has the first covering part, and the like.

Referring to fig. 5, fig. 5 is an exemplary structural schematic diagram of an installation situation including the film-covered metal channel trench of fig. 1. As shown in FIG. 5, the coated metal channel 100-1 is installed on a roofing structure 200-1. Wherein the roofing structure 200-1 comprises a roof panel 21, a support structure 23 and a gutter 22. Wherein the roof panel 21 comprises a first roof layer 211 and a second roof layer 212, the first roof layer 211 being a hot-air weldable layer. The support structure 23 supports the roof panel 21. The concave part between the roof panels 21-1 on both sides, namely the drainage ditch 22, is U-shaped in cross section and comprises a bottom 221 and a side wall 222. Both sides of the drainage ditch 22 are fixedly connected with the roof panel 21. A coated metal trough-type channel 100-1 is fixed to the drainage ditch 22, wherein the structure of the coated metal trough-type channel 100-1 can be referred back to fig. 1. Both side walls 112 of the coated metal groove 100-1 are folded outwards to form the overlapping part 12, and both sides are connected with the first covering parts 131. The lap joint portion 12 is formed of a second metal plate layer, the second metal plate layer of the lap joint portion 12 is integrally formed with the first metal plate layer of the U-shaped portion 11, and the first cover 131 is integrally formed with the TPO layer of the U-shaped portion 11. The first cover 131 is connected to the side wall 112 at the top edge thereof, and is separated from the overlapping part 12. The first covering member 131 is used to cover the portion of the roofing structure 200-1 overlapping the overlap portion 12. The coated metal channel also includes a fastener 300 and a third cover 400. As shown in FIG. 5, the bottom 111 of the coated metal trough-type channel 100-1 is fixed to the bottom 221 of the drainage channel 22 by fasteners 300. The fasteners 300 may be beads, screws, etc. The fixture 300 fixes the metal-coated groove 100-2 to the drain 22, thereby increasing the reliability of the installation. The fastener 300 is further covered with a third cover 400, and the third cover 400 is a hot-air weldable waterproof roll, such as a TPO or PVC waterproof roll, so that it can be hot-air welded to the bottom 111 or the side wall 112 of the metal-covered channel 100-1 whose surface layer is also a hot-air weldable waterproof roll. The fasteners are covered with waterproof coiled materials and welded by hot air, so that the risk of leakage caused by fixing points can be effectively prevented, and the maintenance cost is reduced. The overlapping part 12 of the metal-coated groove 100-1 is overlapped on the support structure 23 constructed of C-shaped steel. The support structure 23 may also be other conventional roofing support structures such as purlins or the like. The first covering piece 131 of the film-coated metal groove 100-1 is fixed on the first roof layer 211 of the roof panel 21 through hot air welding, covers the overlapped part of the roof structure 200-1 and the overlapping part 12, and is welded through hot air to form an integral structure, so that the leakage risk caused by the exposure of the overlapping seam is effectively reduced.

Referring to fig. 6, fig. 6 is an exemplary structural schematic diagram of an installation situation including the film-covered metal channel trench of fig. 2. As shown in FIG. 6, the installation of the coated metal trough includes a roof structure 200-2 and a coated metal trough 100-2. The roofing structure 200 includes a roof panel 21, a support structure 23 and a gutter 22. The roof panel 21 includes a first roof layer 211 and a second roof layer 212, the first roof layer 211 is also a hot-air weldable layer, and the second roof layer 212-2 may be a steel wire mesh or a glass wool. The support structure 23 supports the roof panel 21 and the drainage ditch 22. The drainage ditch 22-2 may be a concrete-cast channel-type ditch or may include an original metal channel-type ditch or an asbestos channel-type ditch or the like fixed thereabove. The concave part between the two side roof panels 21, namely the drainage ditch 22, is U-shaped in cross section and comprises a bottom 221, a side wall 222 and a folded part 223 formed by folding the side wall 222 outwards. Both sides of the drainage ditch 22 are fixedly connected with the roof panels 212. A coated metal trough-type channel 100-2 is also secured to the drain 22, wherein the structure of the coated metal trough-type channel 100-2 can be referenced back to fig. 2. Both side walls 112 of the metal groove 100-2 are folded outwards to form the overlapping part 12, and both sides are connected with the second covering parts 132. The lap joint portion 12 is integrally formed with the TPO-coated metal plate constituting the U-shaped portion 11. One end of the second covering member 132 is fixedly connected to the side wall 112 of the U-shaped portion 11 by hot air welding at an arrow in fig. 6, and the other end is extended outward. The second cover 132 is used to cover the portion of the roofing structure 200-2 that overlaps the lap 12. In FIG. 6, the bottom 111 of the coated metal groove 100-2 is fixed to the bottom 221 of the drainage ditch 22. The overlapping part 12 of the metal-coated groove 100-2 overlaps the folded part 223 of the drainage ditch 22 supported by the support structure 23. The support structure 23 may be a conventional roofing support structure, such as a C-section steel or purlin, or the like. The other end of the second covering member 132 is fixed to the first roof layer 211 of the roof panel 21 by hot air welding, and covers the overlapping part of the roof structure 200-2 and the overlapping part 12, and the hot air welding forms an integral structure, thereby effectively reducing the leakage risk caused by the exposure of the overlapping seam.

Further, when the thickness of the roof panel exceeds a certain range, the first overlay element may not be able to cover the overlap seam and be hot air welded to the first roof layer. At this time, the first covering part or the first covering part structure is optionally reserved, and the second covering part is added. The length of the second covering parts can be adjusted according to actual requirements, for example, the length of the second covering parts on two sides can be prolonged, and the near ends of the second covering parts are mutually welded with the coated metal groove type grooves in a hot air welding mode. For example, a single second cover member may be selected to cover the entire channel of the coated metal and to cover the lap seams formed by overlapping the channel of the coated metal with the sides of the roof panel.

Furthermore, in order to more reliably fix the film-coated metal groove-type groove on the roof structure, the lap joint part of the film-coated metal groove-type groove can be lapped on a first roof layer of the roof layers and is fixed with a supporting structure for supporting the roof layers through a fastener. The covering piece covers the overlapping seam formed by overlapping the film-covered metal groove and the two sides of the roof panel and also covers the fastener, so that the leakage risk of the overlapping seam is prevented, and the leakage risk brought by the fastener is also prevented.

Referring to fig. 7, fig. 7 is an exemplary structural schematic diagram of an installation situation including the film-covered metal channel shown as a-3 in fig. 4. As shown in fig. 7, the overlapping portion and the covering member on the right side of the metal-coated groove are the same as those in fig. 5. Similarly, the bottom of the coated metal channel 100 is secured to the drain 22 by fasteners 300. Similarly, the fastener 300 may be a bead, a screw, or the like. The fastener 300 may also be covered with a third cover 400. The third cover 400 may also be a hot air weldable waterproofing membrane, such as a TPO or PVC waterproofing membrane, which may be hot air welded to the bottom or side wall of the metal channel-type trench covered with a membrane, which may also be a hot air weldable waterproofing membrane. Similarly, the lap 12 of the coated metal channel is lapped on a support structure constructed of C-section steel. The support structure 23 may also be a purlin or the like. A first cover 131 of a laminated metal channel is also secured to the first roof layer of roof panel 21 by hot air welding. Except that a parapet wall 24 is fixedly connected with the left side of the film-covered metal groove, and the height of the parapet wall 24 is higher than that of the roof layer 21. The left side wall of the metal groove-shaped groove coated with the film is integrally folded outwards to form a folded part 12-1 'similar to the lap joint part 12-1, and the folded part 12-1' is fixed at the top of the parapet wall 24 through a fastener 32. The top of the parapet wall 24-1 is also provided with a flashing plate 25 which is used for collecting rainwater into the film-coated metal groove-shaped ditch and simultaneously preventing the leakage risk caused by the lap seam formed by overlapping the folded part 12-1' with the parapet wall.

Similarly, referring to fig. 8, fig. 8 is an exemplary structural schematic view of another installation of a coated metal channel trench according to some embodiments of the present invention. The installation of the coated metal channel trench in fig. 8 is similar to that of fig. 7. In contrast, the overlapping portion 12 and the covering member 13 on the right side of the metal-coated groove in fig. 8 have the same structure as the overlapping portion 12 and the covering member 13 in the metal-coated groove in fig. 6, and the mounting is performed in the same manner.

Furthermore, the side wall of one side of the film-coated metal groove fixedly connected with the parapet wall can be not folded and is directly fixed on the parapet wall through a fastener. A waterproof covering piece similar to the preorder second covering piece can be connected to the side wall, the waterproof covering piece covers the fastener and is in hot air welding with the TPO layer of the side wall, the risk of leakage at the fixing position of the fastener is prevented, and the lap joint of the side wall and the parapet wall can be covered and shielded through the flashing board.

Referring to fig. 9, fig. 9 is a schematic diagram of an exemplary structure of a coated metal grooved trench, according to some embodiments of the present invention. As shown in fig. 9, adjacent film-coated metal grooved channels 100 are butted in a flush manner, and overlapped seams, as indicated by arrows in fig. 9, are covered with a waterproof roll. The waterproofing membrane may be a PVC waterproofing membrane or a TPO waterproofing membrane. The waterproof coiled material completely covers the butt joint seam, and is in lap joint with the two adjacent film-coated metal groove-shaped grooves 100, and the lap joint position is fixed through hot air welding. The waterproof coiled material extends towards two sides along the butt joint seam, and is in lap joint with the roof structures on two sides of the film-coated metal groove-shaped groove 100, and the lap joint position is fixed through hot air welding. So fixed, can make waterproofing membrane cover sealed flat mouthful butt joint seam completely, the effectual risk that prevents the seepage. Further, if the position where the fastener is fixed is closer to the butt seam, a waterproof cover for covering the fastener may cover the butt seam while satisfying the aforementioned requirements. Simultaneously, the four sides that cover fastener and the waterproof covering of butt joint all pass through hot-blast welded fastening, can be with tectorial membrane metal slot type ditch welded fastening, also can be with roof boarding welded fastening. In a word, the four sides of the waterproof covering part are fixed through hot air welding, and the covered space is sealed. Therefore, the drainage structure can be prevented from leaking water, the maintenance cost is reduced, and the service life of the drainage structure of the building is effectively prolonged.

The technical features of the above-mentioned embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above-mentioned embodiments are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features. The above-mentioned embodiments only represent several embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A coated metal trough-shaped groove is characterized by comprising a U-shaped part, a lap joint part and a covering part;

the U-shaped part comprises a left side wall, a right side wall and a bottom, wherein at least one side wall is provided with an overlapping part which is turned outwards at the top edge of the side wall, and an included angle is formed at the joint of the overlapping part and the side wall and is used for forming fixed connection with a roof structure;

the covering piece is connected with the side wall, is separated from the lap joint part and is used for covering the part of the lap joint part, which is connected with the roof structure;

wherein, the U-shaped part is a TPO tectorial membrane metal sheet.

2. The laminated metal grooved trench of claim 1 wherein the TPO laminated metal sheet includes a TPO layer, a glue film layer and a first metal sheet layer in order from top to bottom in the thickness direction.

3. The film-covered metal channel trench as defined in claim 2 wherein said lap joint comprises a second sheet metal layer integrally formed with said first sheet metal layer; the covering piece comprises a first covering piece which is integrally formed with the TPO layer of the U-shaped part; the overlapping part and the first covering part on the same side are connected at the top edge of the side wall and are used for covering the overlapping part of the roof structure and the overlapping part.

4. The overlay metal channel trench of claim 2 wherein the overlap portion is integrally formed with the U-shaped portion, the cover member comprising a second cover member having one end secured to the inside of the sidewall and the other end extending to at least a distal end of the overlap portion, the second cover member being adapted to cover a portion of the roofing structure overlapping the overlap portion.

5. The coated metal trough trench of claim 2, wherein the cover comprises a first cover and a second cover;

the first covering piece and the TPO layer of the U-shaped part are integrally formed;

one end of the second covering part is welded and fixed with the inner side of the side wall through hot air, and the other end of the second covering part at least extends to the far end of the lap joint part;

the first cover is between the second cover and the lap joint; the second covering piece is used for covering the part of the roof structure, which is overlapped with the overlapping part.

6. The film-covered metal trough according to any one of claims 1 to 5, wherein the film-covered metal trough is mounted on the roofing structure,

the roof structure comprises a roof panel, a supporting structure and a drainage ditch;

the roof panels comprise a first roof layer and a second roof layer, the supporting structure supports the roof panels and/or the drainage ditches, and at least one side of the drainage ditches is fixedly connected with the roof panels;

the film-coated metal groove-shaped groove is fixed on the drainage ditch, at least one side of the film-coated metal groove-shaped groove is fixedly connected with the roof structure, and the lap joint part of the connection side is fixed on the first roof layer or the second roof layer or the supporting structure;

and the covering piece of the film-coated metal groove type groove covers the lap joint position of the roof structure and the lap joint part.

7. The laminated metal trough of claim 6 wherein said roofing structure further comprises a parapet, one side of said drainage channel being fixedly connected to said roof panel and the other side of said drainage channel being connected to said parapet;

the tectorial membrane metal slot type ditch is fixed on the escape canal, tectorial membrane metal slot type ditch one side with roof boarding fixed connection, the opposite side with parapet fixed connection.

8. The laminated metal channel trench of claim 7 wherein said laminated metal channel trench is secured to said roof panel, said support structure, said channel trench and/or said parapet by fasteners covered with a third cover member and said third cover member is secured in thermal wind communication with said laminated metal channel trench.

9. The film-covered metal trough groove of claim 8, wherein adjacent film-covered metal trough grooves are butt-jointed in a plain mode, and butt joints are covered with waterproof coiled materials.

10. The laminated metal channel trench of claim 9 wherein said cover is a PVC or TPO waterproofing membrane.

Images