Leakage-proof device for window edge closing of steel structure building

By designing a window sealing and leak-proof device for steel structure buildings, and utilizing an integrated fixed plate and drainage plate structure, the problem of water seepage in the window gaps of steel structure houses was solved, achieving both sealing effect and aesthetics, and simplifying the construction process.

CN223952509UActive Publication Date: 2026-02-27SICHUAN HUASHEN STEEL STRUCTURE CO LTD
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Patent Information

Application Number
CN202520426307.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-12
Publication Date
2026-02-27
Estimated Expiration
2035-03-12

AI Technical Summary

Technical Problem

The gaps at the windows of steel structure houses caused by the horizontal laying of sandwich panels cannot be completely sealed, leading to water leakage problems. Existing solutions such as applying sealant are prone to aging, costly, and affect aesthetics. Custom sandwich panels have long production cycles, which is not conducive to rapid construction.

Method used

Design a leak-proof device including a first fixing plate, a leak-proof body, and a second fixing plate. The device uses an integrated connection structure to block gaps, uses a diversion plate to guide rainwater and prevent accumulation, and fixes the fixing plate to the outside of the sandwich panel with screws to prevent the screws from being exposed.

Benefits of technology

It effectively seals window gaps, reduces the risk of water seepage, simplifies the construction process, reduces maintenance costs, and maintains the aesthetics of the house.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a steel structure building window edge closing leakage-proof device which comprises a first fixing plate, a leakage-proof body and a second fixing plate. The first fixing plate, the leakage-proof body and the second fixing plate are of an integrated connection structure. The second fixing plate is of an L-shaped structure, the L-shaped structure comprises a transverse part and a longitudinal part, the transverse part is arranged between the window and the thin-wall light steel wall purlin, and the longitudinal part is perpendicular to the end face, at the window, of the thin-wall light steel wall purlin and attached to the side, facing the interior of a room, of the window. The leakage-proof body is in butt joint with the end, outside the window, of the transverse part, and the leakage-proof body is arranged above a gap between the thin-wall light steel wall purlin and the transversely-laid sandwich panel. The first fixing plate is in butt joint with the end, extending to the outer side of the transversely-laid sandwich panel, of the leakage-proof body, and the first fixing plate is fixedly connected to the outer side of the transversely-laid sandwich panel. The utility model solves the problem of water leakage in the gap between the purlin window of the thin-wall light steel wall of the single house and the outer side transversely-laid sandwich panel and the gap between the window frame and the window opening.
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Description

TECHNICAL FIELD

[0001] The utility model relates to steel structure building window leakproof technology field especially relates to steel structure building window edge receiving leakproof device. BACKGROUND

[0002] In recent years, with the rapid development of prefabricated building technology, steel structure house has been widely used in temporary building, emergency housing, remote residence and the like due to its advantages of fast construction speed and relatively low cost. The steel structure house usually adopts a standardized and modular design concept, and the main structure includes a wall frame composed of channel steel and a horizontally laid sandwich panel wall surface.

[0003] In the existing single house building process, the upper and lower edges of the strip window are received by sectioning, and there is a gap between the wall window composed of channel steel and the horizontally laid sandwich panel on the outside. Since the sandwich panel is laid horizontally, the window cutting position cannot be completely sealed, and therefore a gap is inevitably generated. The gap is directly exposed to the external environment, and water easily penetrates in rainy weather, causing the house to be damp and the wall material to be damaged.

[0004] In order to solve the above problems, the following methods are currently mainly used for treatment:

[0005] Glue sealing: waterproof glue is filled in the gap to block the penetration of rainwater. However, this method has the following disadvantages: first, the waterproof glue is prone to aging and cracking, and needs to be regularly maintained and replaced; second, the construction quality is difficult to guarantee, and problems such as missed coating and hollowing are prone to occur; third, the appearance of the house is affected.

[0006] Special-shaped sandwich panel: a special-shaped sandwich panel is used to reduce the generation of gaps. However, this method has a high cost, and the production cycle of the customized sandwich panel is long, which is not conducive to the rapid construction of single houses. INVENTION CONTENTS

[0007] To solve the above problems, the utility model provides a steel structure building window edge receiving leakproof device, which solves the problems of water leakage between the wall purlin structure and the horizontally laid sandwich panel on the outside of the steel structure house wall window and the problems of water leakage between the window frame and the wall purlin structure.

[0008] The utility model provides a steel structure building window edge receiving leakproof device, and the specific technical scheme is as follows:

[0009] The utility model discloses a steel structure building window edge receiving leakproof device, and the specific technical scheme is as follows:

[0010] The first fixed plate, the leakproof main body and the second fixed plate are integrally connected.

[0011] The second fixed plate is an L-shaped structure, which includes a transverse part and a longitudinal part, the transverse part is arranged between the window and the thin-walled light steel wall purlin, and the longitudinal part is perpendicular to the end surface of the thin-walled light steel wall purlin at the window and is attached to the side of the window facing the house;

[0012] The leakage-proof main body is connected to the transverse part at one end outside the window, and the leakage-proof main body is arranged above the gap between the thin-walled light steel wall purlin and the transversely laid sandwich panel;

[0013] The first fixed plate is connected to the leakage-proof main body at one end outside the transversely laid sandwich panel, and the first fixed plate is fixedly connected to the outside of the transversely laid sandwich panel.

[0014] The gap between the thin-walled light steel wall purlin and the transversely laid sandwich panel at the window caused by the edge closing is shielded by the device, and the leakage-proof effect is achieved.

[0015] Further, the longitudinal part is fixedly connected to the thin-walled light steel wall purlin through a vertically penetrating screw.

[0016] Further, the leakage-proof main body is a cuboid structure, which is horizontally arranged above the thin-walled light steel wall purlin and the transversely laid sandwich panel, and part of the plate body is attached to the end surface of the thin-walled light steel wall purlin at the window.

[0017] Further, the leakage-proof main body includes a horizontal plate body and a drainage plate body, the horizontal plate body and the drainage plate body are connected as an integral structure, and the drainage plate body is connected at an angle with the horizontal plate body.

[0018] The horizontal plate body is attached to the end surface of the thin-walled light steel wall purlin at the window, and the drainage plate body extends from the outer edge of the thin-walled light steel wall purlin to the plane where the outer edge of the transversely laid sandwich panel is located.

[0019] Further, the angle between the drainage plate body and the horizontal plate body is not less than the angle of the outer edge top corner of the transversely laid sandwich panel extending to the end surface of the thin-walled light steel wall purlin at the window.

[0020] Further, the first fixed plate is a cuboid plate body, which is arranged longitudinally outside the transversely laid sandwich panel.

[0021] Further, the first fixed plate is fixedly connected to the transversely laid sandwich panel through a screw.

[0022] Further, the bottom of the first fixed plate is provided with a drainage structure.

[0023] Further, the first fixed plate includes a vertical plate body and a fixed plate body, the vertical plate body and the fixed plate body are connected as an integral structure, and the fixed plate body is an L-shaped structure.

[0024] The vertical plate body is connected with the leakage-proof main body, parallel to the cross-laid sandwich panel, one side of the fixed plate body is attached to the cross-laid sandwich panel, one end of the fixed plate body perpendicular to the cross-laid sandwich panel is connected with the vertical plate body, and the vertical corner of the fixed plate body faces the side of the vertical plate body.

[0025] Further, the vertical corner of the fixed plate body is provided with an angle-shaped fixing piece, the angle-shaped fixing piece partially extends out of the fixed plate body, and the part of the angle-shaped fixing piece extending out of the fixed plate body is fixedly connected with the cross-laid sandwich panel through a screw.

[0026] The utility model discloses the beneficial effects are as follows:

[0027] 1, the utility model discloses the leakage-proof plate body structure that the leakage-proof plate body, first fixed plate, second fixed plate constitute has reduced the leakage hidden danger between the thin-walled light steel wall purlin window of single house and the outside cross-laid sandwich panel.

[0028] 2, the utility model discloses the vertical plate body and fixed plate body of first fixed plate, make the first fixed plate fixed on the outside of cross-laid sandwich panel, avoid the sandwich panel structure nail and fixed screw to be exposed outside at the same time.

[0029] 3, the utility model discloses the leakage-proof main body that the horizontal plate body and drainage plate body constitute has realized the rainwater diversion of needing leakage-proof place, avoided the rainwater accumulation at leakage-proof main body, and the drainage plate body meets the outer edge top corner of cross-laid sandwich panel, guarantee the stability of device. DRAWINGS

[0030] Figure 1 It is the device structure schematic drawing of the utility model embodiment 1.

[0031] Figure 2 It is the assembly effect schematic drawing of the utility model embodiment 1.

[0032] Figure 3 It is the device structure schematic drawing of the utility model embodiment 2.

[0033] Figure 4 It is the assembly effect schematic drawing of the utility model embodiment 2.

[0034] Figure 5 It is the device structure schematic drawing of the utility model embodiment 3.

[0035] Figure 6 It is the assembly effect schematic drawing of the utility model embodiment 3.

[0036] Figure 7 It is the device structure schematic drawing of the utility model embodiment 4.

[0037] Figure 8It is the assembly effect schematic view of embodiment 4 of the utility model.

[0038] Mark explanation: 1 - first fixed plate, 2 - second fixed plate, 3 - leakage prevention main body, 4 - screw, 5 - angle fixing piece, 6 - drainage structure, 7 - thin-walled light steel wall purlin, 8 - window, 9 - horizontal lay sandwich board, 10 - vertical plate body, 11 - fixed plate body, 12 - horizontal plate body, 13 - drainage plate body. DETAILED DESCRIPTION

[0039] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0040] In the description of the embodiments of the utility model, it should be pointed out that the indicated orientation or position relationship is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship commonly placed when the utility model product is used, or the orientation or position relationship commonly understood by those skilled in the art, or the orientation or position relationship commonly placed when the utility model product is used, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the indicated device or element must have a specific orientation, structure and operation, therefore, it cannot be understood as a limitation of the utility model. In addition, the terms "first", "second" are only used for differentiation, and cannot be understood as indicating or implying relative importance.

[0041] In the description of the embodiments of the utility model, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "set", "connected" should be understood broadly, for example, it can be fixedly connected, or detachably connected, or integrally connected, it can be directly connected, or indirectly connected through intermediate medium. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0042] Embodiment 1

[0043] The embodiment 1 of the utility model discloses a steel structure building window edge closing leakage prevention device, as shown in Figure 1 and Figure 2 , specifically as follows:

[0044] The device comprises a first fixed plate 1, a leakage prevention main body 3 and a second fixed plate 2.

[0045] The first fixed plate 1, the leakage-proof main body 3 and the second fixed plate 2 are in an integrated connection structure.

[0046] As a preferred embodiment, the first fixed plate 1 is a cuboid plate body, which is arranged longitudinally outside the transverse-piled sandwich plate 9.

[0047] The first fixed plate 1 is fixedly connected with the transverse-piled sandwich plate 9 through the screw 4.

[0048] The bottom of the first fixed plate 1 is provided with a drainage structure 6, through which rainwater is prevented from splashing to one side of the transverse-piled sandwich plate 9 due to water tension at the bottom of the first fixed plate 1.

[0049] Specifically, the drainage structure 6 adopts a wedge structure with a triangular cross section.

[0050] As a preferred embodiment, the leakage-proof main body 3 is a cuboid plate body, which is arranged horizontally above the thin-walled light steel wall purlin 7 and the transverse-piled sandwich plate 9, and part of the plate body is attached to the end face of the thin-walled light steel wall purlin 7 at the window 8.

[0051] In the embodiment, the first fixed plate 1 and the leakage-proof main body 3 are both cuboid structures, and the device as a whole has a bent plate structure with two right angles, which is convenient for processing, production, assembly and transportation.

[0052] The second fixed plate 2 is an L-shaped structure, which includes a transverse part and a longitudinal part.

[0053] Specifically, the transverse part and the longitudinal part are in an integrated structure.

[0054] The transverse part is arranged between the window 8 and the thin-walled light steel wall purlin 7.

[0055] The longitudinal part is perpendicular to the end face of the thin-walled light steel wall purlin 7 at the window 8 and is attached to the side of the window 8 facing the indoor side.

[0056] The longitudinal part is fixedly connected with the thin-walled light steel wall purlin 7 through the vertically penetrating screw 4.

[0057] The leakage-proof main body 3 is butted to one end of the transverse part outside the window 8, and the leakage-proof main body 3 is arranged above the gap between the thin-walled light steel wall purlin 7 and the transverse-piled sandwich plate 9.

[0058] The first fixed plate 1 is butted to one end of the leakage-proof main body 3 extending to the outside of the transverse-piled sandwich plate 9, and the first fixed plate 1 is fixedly connected to the outside of the transverse-piled sandwich plate 9.

[0059] Embodiment 2

[0060] Embodiment 2 of the utility model discloses a steel structure building window edge-closing leakage-proof device, likeFigure 3 and Figure 4 As shown in the specific as follows:

[0061] The device comprises a first fixed plate 1, a leakage-proof main body 3 and a second fixed plate 2;

[0062] The first fixed plate 1, the leakage-proof main body 3 and the second fixed plate 2 are integrally connected;

[0063] As a preferred embodiment, the first fixed plate 1 comprises a vertical plate body 10 and a fixed plate body 11, the vertical plate body 10 is integrally connected with the fixed plate body 11, the fixed plate body 11 is an L-shaped structure, and the vertical plate body 10 is a cubic plate body;

[0064] The vertical plate body 10 is vertically connected with the leakage-proof main body 3 and parallel to the horizontally laid sandwich panel 9, one side of the fixed plate body 11 is attached to the horizontally laid sandwich panel 9, one end of the fixed plate body 11 is vertically connected with the vertically laid sandwich panel 9, and the vertical corner of the fixed plate body 11 is directed to one side of the vertical plate body 10.

[0065] As a preferred embodiment, an angle-shaped fixing piece 5 is arranged at the vertical corner of the fixed plate body 11, the angle-shaped fixing piece 5 partially extends out of the fixed plate body 11, and the part of the angle-shaped fixing piece 5 extending out of the fixed plate body 11 is fixedly connected with the horizontally laid sandwich panel 9 through a screw 4.

[0066] In this embodiment, the first fixed plate 1 does not need to be fixedly connected with the horizontally laid sandwich panel 9, and the first fixed plate 1 and the horizontally laid sandwich panel 9 are fixedly connected through the angle-shaped fixing piece 5 and the screw 4, so that the screw 4 for fixing is avoided from being exposed outside.

[0067] As a preferred embodiment, the leakage-proof main body 3 is a cubic plate body, horizontally arranged above the thin-walled light steel wall purlin 7 and the horizontally laid sandwich panel 9, and partially attached to the end face of the thin-walled light steel wall purlin 7 at the window 8.

[0068] In this embodiment, the first fixed plate 1 and the leakage-proof main body 3 are both cubic plate bodies, and the device as a whole has a bending plate body structure with two right angles, which is convenient for processing, production, assembly and transportation.

[0069] The second fixed plate 2 is an L-shaped structure, and the L-shaped structure comprises a horizontal part and a vertical part;

[0070] Specifically, the horizontal part and the vertical part are in an integral structure.

[0071] The horizontal part is arranged between the window 8 and the thin-walled light steel wall purlin 7.

[0072] The longitudinal part is perpendicular to the end surface of the thin-walled light steel wall purlin 7 at the window 8, and is attached to the side of the window 8 facing the room;

[0073] The longitudinal part and the thin-walled light steel wall purlin 7 are fixedly connected through the vertically penetrating screw 4.

[0074] The leakage-proof main body 3 is butted at one end outside the window 8, and is arranged above the gap between the thin-walled light steel wall purlin 7 and the horizontally laid sandwich panel 9.

[0075] The first fixed plate 1 is butted at one end outside the horizontally laid sandwich panel 9, and is fixedly connected to the outside of the horizontally laid sandwich panel 9.

[0076] Embodiment 3

[0077] Embodiment 3 of the utility model discloses a steel structure building window edge receiving leakage-proof device, like Figure 5 And Figure 6 As shown in the specific implementation, the device comprises a first fixed plate 1, a leakage-proof main body 3 and a second fixed plate 2.

[0078] The device comprises a first fixed plate 1, a leakage-proof main body 3 and a second fixed plate 2.

[0079] The first fixed plate 1, the leakage-proof main body 3 and the second fixed plate 2 are integrally connected.

[0080] As a preferred embodiment, the first fixed plate 1 is a cuboid plate body, and is arranged longitudinally outside the horizontally laid sandwich panel 9.

[0081] The first fixed plate 1 is fixedly connected with the horizontally laid sandwich panel 9 through the screw 4.

[0082] The bottom of the first fixed plate 1 is provided with a drainage structure 6, so that rainwater is prevented from splashing to one side of the horizontally laid sandwich panel 9 due to water tension at the bottom of the first fixed plate 1.

[0083] Specifically, the drainage structure 6 adopts a wedge-shaped structure with a triangular cross section.

[0084] As a preferred embodiment, the leakage-proof main body 3 is a cuboid plate body, and is arranged horizontally above the thin-walled light steel wall purlin 7 and the horizontally laid sandwich panel 9, and part of the plate body is attached to the end surface of the thin-walled light steel wall purlin 7 at the window 8.

[0085] In the embodiment, the leakage-proof main body 3 comprises a horizontal plate body 12 and a drainage plate body 13, the horizontal plate body 12 and the drainage plate body 13 are connected as an integral structure, and the drainage plate body 13 is connected at an angle with the horizontal plate body 12.

[0086] The horizontal plate body 12 is attached to the end surface of the thin-walled light steel wall purlin 7 at the window 8, and the drainage plate body 13 extends from the outer edge of the thin-walled light steel wall purlin 7 to the plane where the outer edge of the transverse sandwich panel 9 is located.

[0087] As a preferred embodiment, the included angle between the drainage plate body 13 and the horizontal plate body 12 is not less than the included angle of the extension of the outer edge top corner of the transverse sandwich panel 9 to the end surface of the thin-walled light steel wall purlin 7 at the window 8.

[0088] Specifically, the included angle between the drainage plate body 13 and the horizontal plate body 12 is such that the drainage plate body 13 is connected to the outer edge top corner of the transverse sandwich panel 9.

[0089] Through the structure of the leakage-proof main body 3, rainwater is guided, and accumulation of rainwater at the leakage-proof main body 3 is avoided, thereby reducing the risk of water leakage.

[0090] The second fixed plate 2 is in an L-shaped structure, and the L-shaped structure includes a transverse portion and a longitudinal portion.

[0091] Specifically, the transverse portion and the longitudinal portion are in an integrated structure.

[0092] The transverse portion is arranged between the window 8 and the thin-walled light steel wall purlin 7.

[0093] The longitudinal portion is perpendicular to the end surface of the thin-walled light steel wall purlin 7 at the window 8 and is attached to the side of the window 8 facing the indoor side.

[0094] The longitudinal portion and the thin-walled light steel wall purlin 7 are fixedly connected through a vertically penetrating screw 4.

[0095] The leakage-proof main body 3 is butted to one end of the transverse portion outside the window 8, and the leakage-proof main body 3 is arranged above the gap between the thin-walled light steel wall purlin 7 and the transverse sandwich panel 9.

[0096] The first fixed plate 1 is butted to one end of the leakage-proof main body 3 extending to the outer side of the transverse sandwich panel 9, and the first fixed plate 1 is fixedly connected to the outer side of the transverse sandwich panel 9.

[0097] Embodiment 4

[0098] Embodiment 4 of the utility model discloses a steel structure building window edge receiving leakage-proof device, like Figure 7 and Figure 8 As shown in the specific implementation, the device includes a first fixed plate 1, a leakage-proof main body 3 and a second fixed plate 2.

[0099] The device includes a first fixed plate 1, a leakage-proof main body 3 and a second fixed plate 2.

[0100] The first fixed plate 1, the leakage-proof main body 3 and the second fixed plate 2 are in an integrated connection structure.

[0101] As a preferred embodiment, the first fixed plate 1 comprises a vertical plate body 10 and a fixed plate body 11, the vertical plate body 10 is connected with the fixed plate body 11 as an integral structure, the fixed plate body 11 is an L-shaped structure, and the vertical plate body 10 is a cubic plate body.

[0102] The vertical plate body 10 is connected with the leakage-proof main body 3 vertically, and is parallel to the horizontally laid sandwich panel 9. One side of the fixed plate body 11 is attached to the horizontally laid sandwich panel 9, and one end of the fixed plate body 11 is connected with the vertical plate body 10 vertically and transversely to the horizontally laid sandwich panel 9. The vertical corner of the fixed plate body 11 is directed to one side of the vertical plate body 10.

[0103] As a preferred embodiment, an angle-shaped fixing piece 5 is arranged at the vertical corner of the fixed plate body 11, and the angle-shaped fixing piece 5 extends out of the fixed plate body 11 partially. The part of the angle-shaped fixing piece 5 extending out of the fixed plate body 11 is fixedly connected with the horizontally laid sandwich panel 9 through a screw 4.

[0104] In this embodiment, the structure of the first fixed plate 1 makes it unnecessary to be fixed closely to the horizontally laid sandwich panel 9. The first fixed plate 1 and the horizontally laid sandwich panel 9 are fixedly connected through the angle-shaped fixing piece 5 and the screw 4, so that the screw 4 for fixing is avoided from being exposed outside.

[0105] In this embodiment, the leakage-proof main body 3 comprises a horizontal plate body 12 and a drainage plate body 13, and the horizontal plate body 12 and the drainage plate body 13 are connected as an integral structure. The drainage plate body 13 is connected with the horizontal plate body 12 at an angle.

[0106] The horizontal plate body 12 is attached to the end surface of the thin-walled light steel wall purlin 7 at the window 8, and the drainage plate body 13 extends from the outer edge of the thin-walled light steel wall purlin 7 to the plane where the outer edge of the horizontally laid sandwich panel 9 is located.

[0107] As a preferred embodiment, the angle between the drainage plate body 13 and the horizontal plate body 12 is not less than the angle at which the outer edge top corner of the horizontally laid sandwich panel 9 extends to the end surface of the thin-walled light steel wall purlin 7 at the window 8.

[0108] Specifically, the angle between the drainage plate body 13 and the horizontal plate body 12 is such that the drainage plate body 13 is connected with the outer edge top corner of the horizontally laid sandwich panel 9.

[0109] Through the structure of the leakage-proof main body 3, the rainwater can be guided, and the rainwater is avoided from accumulating at the leakage-proof main body 3, so that the hidden danger of water leakage is reduced.

[0110] The second fixed plate 2 is an L-shaped structure, and the L-shaped structure comprises a transverse part and a longitudinal part.

[0111] Specifically, the transverse part and the longitudinal part are in an integral structure.

[0112] The transverse part is arranged between the window 8 and the thin-walled light steel wall purlin 7;

[0113] The longitudinal part is perpendicular to the end surface of the thin-walled light steel wall purlin 7 at the window 8 and is attached to the side of the window 8 facing the house;

[0114] The longitudinal part is fixedly connected with the thin-walled light steel wall purlin 7 through the vertically penetrating screw 4.

[0115] The leakage-proof main body 3 is butted at one end outside the window 8, and the leakage-proof main body 3 is arranged above the gap between the thin-walled light steel wall purlin 7 and the horizontally laid sandwich panel 9;

[0116] The first fixed plate 1 is butted at one end outside the leakage-proof main body 3 extending to the horizontally laid sandwich panel 9, and the first fixed plate 1 is fixedly connected to the outside of the horizontally laid sandwich panel 9.

[0117] The above is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A steel construction building window edge closing leakproof device, characterized in that, The first fixed plate, the leakage-proof main body and the second fixed plate are integrally connected. The second fixed plate is in an L-shaped structure, which comprises a horizontal part and a vertical part. The leakage-proof main body is connected with the horizontal part at one end outside the window, and is arranged above the gap between the thin-wall light steel wall purlin and the horizontally-laid sandwich panel. The first fixed plate is connected with the leakage-proof main body at one end outside the horizontally-laid sandwich panel. The vertical part is fixedly connected with the thin-wall light steel wall purlin through a vertical screw.

2. The steel and structure building window edge sealing leak prevention device according to claim 1, wherein, The leakage-proof main body is a cuboid plate arranged above the thin-wall light steel wall purlin and the horizontally-laid sandwich panel, and part of the plate is attached to the end face of the thin-wall light steel wall purlin at the window.

3. The steel and structure building window edge sealing leak prevention device according to claim 1, wherein, The leakage-proof main body comprises a horizontal plate and a drainage plate, and the horizontal plate and the drainage plate are integrally connected.

4. The steel and structure building window edge sealing leak prevention device according to claim 1, wherein, The horizontal plate is attached to the end face of the thin-wall light steel wall purlin at the window, and the drainage plate extends from the outer edge of the thin-wall light steel wall purlin to the plane where the outer edge of the horizontally-laid sandwich panel is located. The angle between the drainage plate and the horizontal plate is not less than the angle of the outer edge top corner of the horizontally-laid sandwich panel extending to the end face of the thin-wall light steel wall purlin at the window.

5. The steel and structure building window edge sealing leak prevention device according to claim 4, wherein, The first fixed plate is a cuboid plate arranged vertically outside the horizontally-laid sandwich panel.

6. The steel and structure building window edge sealing leak-proof device according to any one of claims 1-5, characterized in that, The first fixed plate is fixedly connected with the horizontally-laid sandwich panel through a screw.

7. The steel and structure building window edge sealing leak prevention device according to claim 6, wherein, The bottom of the first fixed plate is provided with a drainage structure.

8. The steel and structure building window edge sealing leak prevention device according to claim 6, wherein, The first fixed plate comprises a vertical plate and a fixed plate, and the vertical plate and the fixed plate are integrally connected.

9. The steel and structure building window edge sealing leak prevention device according to any one of claims 1-5, wherein, The vertical plate is connected with the leakage-proof main body and is parallel to the horizontally-laid sandwich panel, one side of the fixed plate is attached to the horizontally-laid sandwich panel, one end of the fixed plate perpendicular to the horizontally-laid sandwich panel is connected with the vertical plate, and the vertical corner of the fixed plate is directed to the side of the vertical plate. An angle fixing member is arranged at the vertical corner of the fixed plate, part of the angle fixing member extends out of the fixed plate, and the part of the angle fixing member extending out of the fixed plate is fixedly connected with the horizontally-laid sandwich panel through a screw.

10. The steel and structure building window flashing device of claim 9, wherein, ​