Open-joint metal panels and their manufacturing methods, and open-joint exterior wall structures with earthquake-resistant, water-leakage-resistant, and fire-spread-prevention functions

Abstract

The present invention relates to an open joint metal panel, a method of manufacturing the same, and an open joint exterior wall structure having seismic resistance, leakage and fire spread prevention functions. More specifically, the invention provides a double leakage blocking structure that includes a joint gasket and a watertight gasket, and a double leakage blocking structure that blocks some rainwater entering the interior of the open joint metal panel from entering the construction wall surface through the leakage blocking protrusion of the bracket and the anchor in the drainage guide and fire spread prevention panel, and allows water collected through the drainage guide and fire spread prevention panel to be discharged to the outside through the open joint metal panel and the drainage frame, thereby maximizing leakage performance. The invention relates to an open joint metal panel, a method of manufacturing the same, and an open joint exterior wall structure having seismic resistance, leakage and fire spread prevention functions. An open joint metal panel according to the present invention is characterized by comprising: a panel member having a side portion bent at each side and a panel fixing portion bent outwardly at the end of the side portion; a gasket fixing flange frame fixedly installed on the inner circumference of each side portion; and a watertight gasket fitted and coupled to the gasket fixing flange frame.

Description

Technology Field

[0001] The present invention relates to an open joint metal panel, a method of manufacturing the same, and an open joint exterior wall structure having seismic resistance, leakage and fire spread prevention functions. More specifically, the invention provides a double leakage blocking structure that includes a joint gasket and a watertight gasket, and a double leakage blocking structure that blocks some rainwater entering the interior of the open joint metal panel from entering the construction wall surface through the leakage blocking protrusion of the bracket and the anchor in the drainage guide and fire spread prevention panel, and allows water collected through the drainage guide and fire spread prevention panel to be discharged to the outside through the open joint metal panel and the drainage frame, thereby maximizing leakage performance. The invention relates to an open joint metal panel, a method of manufacturing the same, and an open joint exterior wall structure having seismic resistance, leakage and fire spread prevention functions. Background Technology

[0003] Generally, exterior finishing materials are applied to aggregates constructed to provide insulation and waterproofing while simultaneously enhancing the aesthetic appearance of the building and effectively protecting it from external factors such as wind and rain. The exterior finishing materials are applied to the exterior walls of the building in a grid pattern.

[0004] At this stage, the exterior finishing material is installed by forming joints spaced at predetermined intervals from adjacent exterior finishing materials in all directions (up, down, left, and right). This is because horizontal and vertical deviations occur between exterior finishing materials due to drying shrinkage caused by external environmental factors and deformation resulting from thermal changes. To prevent this, sealant is caulked into the joints to prevent moisture from penetrating from the exterior walls of the building into the interior.

[0005] However, sealants are a type of silicone composed of gray or black colors; after a certain period following injection, they may fade or discolor, causing plasticizer (oil) components to leak out onto the exterior finish. These components combine with dust to contaminate the exterior finish, and external environmental factors such as temperature and moisture (rain or snow) can cause leakage and condensation, which can significantly reduce the value of the building.

[0006] In addition, prolonged exposure to rain or sunlight weakens durability and reduces waterproofing ability, which may lead to increased maintenance costs due to the short replacement cycle.

[0007] To solve this problem, Korean Registered Patent No. 10-2017812 comprises, as shown in FIG. 8, a frame; a plurality of exterior panels having a hollow shape and arranged continuously in the up, down, left, and right directions of the frame to form a finishing surface; The device includes a plurality of mounting brackets that are horizontally arranged at regular intervals along the height direction of the frame and can fix the upper and lower ends of each exterior panel, wherein each mounting bracket comprises: a fixing part of a certain length formed by a first rectangular groove with one end open, the inner end of which can be fixed to one surface of the frame; a seating part formed by a second rectangular groove with one end open at the bottom of the fixing part, the upper and lower ends of which are longer than the upper and lower ends of the fixing part, allowing each exterior panel to be placed on the upper and lower ends; and a support part formed so that the inner end is spaced apart from the frame and extends vertically to the lower end of the seating part so as to be able to fix the exterior panel placed on the outside with a fixing pin fired from the inside, wherein the upper and lower ends of the seating part are each extended further from the upper and lower ends of the fixing part by the thickness of the exterior panel, thereby providing an open joint type exterior panel fixing device.

[0008] However, in the case of the above-mentioned open joint type exterior panel fixing device, since the method of fixing each mounting bracket to the exterior panel requires filling or applying adhesive to the square groove or protrusion provided on one side of the mounting bracket, there is a problem that the construction quality is not uniform and the construction time is considerably long.

[0009] In addition, Korean Registered Patent No. 10-2792285 describes an exterior finishing panel for finishing the exterior wall of a building as illustrated in FIG. 9; a frame portion installed on the exterior wall of the building; a main bracket including a base plate installed on the frame portion, an upper guide rib bent downward from the upper edge of the base plate, and a lower guide rib bent upward from the lower edge of the base plate; a movable plate installed to be movable along the main bracket, an upper support projection protruding from the movable plate below the upper guide rib and bent upward, and a lower support projection protruding from the movable plate below the upper support projection and bent upward; and a lower support bracket having one side coupled to the lower inner side of the exterior finishing panel positioned above the main bracket, and the other side coupled to be caught on the upper support projection. An open joint system with excellent seismic resistance and waterproofing and excellent constructability using a block-type construction method is disclosed, characterized by comprising: an upper support bracket, one side of which is coupled to the upper inner side of an exterior finishing panel positioned below the main bracket, and the other side of which is coupled to be caught on the lower support projection; wherein the movable plate is formed with a width narrower than the gap between the upper guide rib and the lower guide rib, and the sub-bracket is installed such that one side is coupled to the movable plate and the other side is in contact with the main bracket, and further includes an elastic support member that elastically supports the movable plate so that the movable plate can move up, down, left, and right relative to the main bracket.

[0010] However, the open joint system of the aforementioned registered patent has the problem that the manufacturing cost increases due to the complexity of producing each component, and the time required for assembling and installing each component increases compared to existing open joint panels. Prior art literature

[0012] Republic of Korea Registered Patent No. 10-2017812 Republic of Korea Registered Patent No. 10-2792285 Republic of Korea Published Patent No. 10-2024-0078920 Republic of Korea Registered Patent No. 10-2666084 The problem to be solved

[0013] Accordingly, the present invention has been devised to solve the above-mentioned problems, and the objective of the present invention is to provide an open joint outer wall structure having a double leak-blocking structure that blocks some rainwater, etc. that has entered into the interior of the open joint metal panel, from entering the construction wall surface through the anchor in the drainage guidance and fire spread prevention panel, along with a double leak-blocking structure of a joint gasket and a watertight gasket.

[0014] In addition, the objective of the present invention is to provide an open joint exterior wall structure capable of maximizing leakage performance by allowing water collected through a drainage guide and fire spread prevention panel to be discharged to the outside through an open joint metal panel and a drainage frame.

[0015] The problems to be solved by the present invention are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0017] To this end, the open joint metal panel according to the present invention is characterized by comprising: a panel member having a side portion bent at each side and a panel fixing portion bent outwardly at the end of the side portion; a gasket fixing flange frame fixedly installed on the inner circumference of each side portion; and a watertight gasket fitted and coupled to the gasket fixing flange frame.

[0018] In addition, in an open joint metal panel according to the present invention, the gasket fixing flange frame comprises: a fixing surface fixed to the inner circumference of the side portion by a fastening member; an expansion surface bent in a stepped manner from the fixing surface; a gasket fixing body portion formed extending from one side of the expansion surface and contacting the panel fixing portion, formed in a "C" shape with one side open and having a pair of fitting coupling protrusions formed at both ends; a locking protrusion portion formed extending outward from one end of the gasket fixing body portion and perpendicular to the fixing surface; and a drainage space portion partitioned by the expansion surface and the side portion to the panel fixing portion.

[0019] In addition, the open joint metal panel according to the present invention is characterized in that the watertight gasket comprises: a coupling body portion having a pair of fitting groove portions formed at both ends into which the pair of fitting coupling protrusions are fitted; and an elastic dome portion extending from one surface of the coupling body portion, having a space portion formed inside, and having a cross-sectional structure that is convex toward one side.

[0020] In addition, the method for manufacturing an open joint metal panel according to the present invention comprises the steps of: providing a panel member having a side portion and a panel fixing portion; riveting the side portion and the panel member together while the fixing surface of the gasket fixing flange frame is positioned to be in contact with the side portion and the expansion surface is positioned to be in contact with the panel fixing portion; and fitting the fitting groove portion of the watertight gasket into the fitting coupling projection of the gasket fixing flange frame to be joined.

[0021] In addition, the exterior wall structure having a leak and fire spread prevention function according to the present invention comprises: an insulating material attached to the construction wall surface; a vertical frame fixed by a plurality of brackets installed on the construction wall surface; a horizontal frame installed between the vertical frames arranged left and right; a drainage guiding and fire spread prevention panel with one end attached to the insulating material and the other end attached to the horizontal frame; a drainage frame with one end fixed to the lower surface of the horizontal frame and the other end being a free end; an open joint metal panel installed on the vertical frame and the horizontal frame; and a joint gasket installed between adjacent open joint metal panels; wherein the open joint metal panel comprises a panel member having a side portion bent from each side and a panel fixing portion bent outward from the end of the side portion; a gasket fixing flange frame fixedly installed on the inner circumference of each side portion; and a watertight gasket fitted and coupled to the gasket fixing flange frame.

[0022] In addition, in an exterior wall structure having a leak and fire spread prevention function according to the present invention, the bracket is composed of a wall fixing surface and a vertical frame fixing surface that is bent from the wall fixing surface and fixed to a vertical frame, and the vertical frame fixing surface is characterized in that a leak-blocking guide projection and a plurality of drainage guide grooves are formed in a vertical direction in an area adjacent to the wall fixing surface.

[0023] In addition, in an exterior wall structure having a leak and fire spread prevention function according to the present invention, the drainage guidance and fire spread prevention panel comprises: a horizontal plane extending from the horizontal frame to the insulation material; an upper folded plane bent upward from the horizontal plane and fixed to the insulation material; a plurality of vertical planes extending from the horizontal plane to a part of the vertical frame; and a lower folded plane bent at the lower end of the vertical plane and positioned on the horizontal plane.

[0024] In addition, in an exterior wall structure having a function to prevent leakage and fire spread according to the present invention, the drainage frame comprises: a drainage frame fixing part fixed to the lower surface of the horizontal frame; and a structure extending from one side of the drainage frame fixing part and protruding from the front of the horizontal frame, with an open upper portion and a locking space formed therein, wherein a drainage groove is formed on the lower front side and a locking projection is formed on the upper front side, and when the open joint metal panel is separated from the vertical frame or the horizontal frame, the gasket fixing flange frame falls into the locking space and is not dislodged by the locking projection. Effects of the invention

[0026] Accordingly, the present invention has been devised to solve the above-mentioned problems. The open joint metal panel, the method of manufacturing the same, and the open joint exterior wall structure having seismic resistance, leakage and fire spread prevention functions according to the present invention have a double leakage blocking structure of a joint gasket and a watertight gasket, and together with the leakage blocking protrusion of the bracket and the drainage guidance and fire spread prevention panel, the effect of blocking some rainwater, etc. that has entered the interior of the open joint metal panel from entering the construction wall surface through the anchor in the drainage guidance and fire spread prevention panel is achieved.

[0027] In addition, the open joint metal panel according to the present invention, the method of manufacturing the same, and the open joint exterior wall structure having seismic resistance, leakage, and fire spread prevention functions have the effect of maximizing leakage performance by allowing water collected through the drainage guidance and fire spread prevention panel to be discharged to the outside through the open joint metal panel and the drainage frame.

[0028] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description below. Brief explanation of the drawing

[0030] FIG. 1 is a longitudinal cross-sectional view of an open joint outer wall structure having seismic resistance, leakage and fire spread prevention functions according to the present invention. FIG. 2 is a cross-sectional view showing an embodiment of a structure in which an open joint metal panel of the present invention is joined to a frame. Figure 3 is a cross-sectional view of Figure 1. FIGS. 4 to 6 are simulated images of an open joint exterior wall structure having seismic resistance, leakage and fire spread prevention functions according to the present invention. Figure 7 is a simulation image illustrating the process of preventing leakage in the exterior wall structure of the present invention. Figures 8 and 9 are representative drawings of prior patents related to the open joint method. Specific details for implementing the invention

[0031] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings.

[0032] In describing the present invention, specific descriptions of related known functions or configurations are omitted if it is determined that such descriptions would unnecessarily obscure the essence of the invention. Furthermore, the terms described below are defined considering their functions in the present invention, and these definitions may vary depending on the intent of the worker or operator, or judicial precedents. Therefore, their definitions should be based on the content throughout this specification.

[0034] FIG. 1 is a longitudinal cross-sectional view of an open joint exterior wall structure having seismic resistance, leakage and fire spread prevention functions according to the present invention, FIG. 2 is a cross-sectional view showing an embodiment of a structure in which an open joint metal panel of the present invention is coupled to a frame, FIG. 3 is a cross-sectional view of FIG. 1, FIG. 4 to 6 are simulated images of an open joint exterior wall structure having seismic resistance, leakage and fire spread prevention functions according to the present invention, and FIG. 7 is a simulation image expressing the process of leakage prevention in the exterior wall structure of the present invention.

[0035] Referring to FIGS. 1 to 7, an open joint exterior wall structure (10) having seismic resistance, leakage and fire spread prevention functions according to the present invention may be configured to include an insulation material (11) attached to a construction wall surface (10), a vertical frame (106) fixed by a plurality of brackets (103) installed on the construction wall surface (10), a horizontal frame (107) installed between vertical frames arranged left and right, a drainage guiding and fire spread prevention panel (110) with one end attached to the insulation material and the other end attached to the horizontal frame, a drainage frame (120) with one end fixed to the lower surface of the horizontal frame and the other end being a free end, and a joint gasket (160) installed between an open joint metal panel installed on the vertical frame and the horizontal frame and an adjacent open joint metal panel. Although this embodiment illustrates an example where an insulation material is installed on the construction wall surface, it is not limited thereto and can, of course, be applied even in cases where the wall is constructed without an insulation material.

[0036] First, the open joint metal panel (130) of the present invention is composed of a composite module structure in which a gasket fixing flange frame (140) and a watertight gasket (150) are integrally combined with a panel member (130') made of a metal material such as aluminum, and the time for constructing the exterior wall panel can be significantly reduced.

[0037] Referring to FIG. 2, the above gasket fixing flange frame (140) may be exemplified as being composed of a fixing surface (141) fixed to the inner circumference of the side portion (131) of the panel member by a fastening member (141a), an expansion surface (142) that is steppedly bent from the fixing surface, a gasket fixing body portion (143) that is formed extending from one side of the expansion surface and contacts the panel fixing portion (133), is formed in a "C" shape with one side open and has a pair of fitting coupling protrusions (144a) formed at both ends, a locking protrusion portion (144) that is formed extending outward from one end of the gasket fixing body portion and is orthogonal to the fixing surface, and a drainage space portion (142a) partitioned by the expansion surface and the side portion to the panel fixing portion.

[0038] Here, the fixed surface of the flange frame for fixing the gasket and the side of the panel member may be joined using fastening members such as rivets or joined through spot welding.

[0039] When using rivets, as shown in Fig. 2, the head of the rivet protruding outward from the side of the panel member acts as a catch to prevent the wedge of the joint gasket from coming loose.

[0040] The watertight gasket (150) of the present invention is made of rubber or silicone resin, etc. and is attached to a vertical frame or a horizontal frame to block rainwater or moisture entering from the outside. It may be composed of a connecting body part (151) and an elastic dome part (155).

[0041] The above-mentioned coupling body part (151) is provided with a pair of fitting groove parts (152) at both ends to which the pair of fitting coupling protrusions (144a) are fitted.

[0042] The above elastic dome portion (155) is formed extending from one side of the above coupling body portion, and has a space portion (155a) formed inside and is formed with a cross-sectional structure that is convex to one side, thereby maximizing the adhesion force to the vertical frame or horizontal frame.

[0043] The open joint metal panel according to the present invention may be manufactured by including the steps of: providing a panel member having a side portion and a panel fixing portion; joining the side portion and the panel member by riveting or welding while the fixing surface of the gasket fixing flange frame is positioned to be in contact with the side portion and the expansion surface is positioned to be in contact with the panel fixing portion; and joining the watertight gasket by fitting the fitting groove portion of the watertight gasket into the fitting coupling projection of the gasket fixing flange frame.

[0044] Next, the bracket (103) of the present invention may be composed of a wall fixing surface (103-1) and a vertical frame fixing surface (103-2) that is bent from the wall fixing surface and fixed to a vertical frame.

[0045] In addition, the vertical frame fixing surface (103-2) may be exemplified as having a guide projection (103a) for preventing leakage and a plurality of drainage guide grooves (103b) each formed in a vertical direction in an area adjacent to the wall fixing surface.

[0046] The above drainage guide groove (103b) serves to collect rainwater flowing along the vertical frame and other water into the drainage guidance and fire spread prevention panel.

[0047] The above-mentioned guide projection (103a) for preventing leakage serves to block rainwater flowing along the vertical frame from seeping into the insulation or construction wall through the anchor (101).

[0048] Next, the drainage guidance and fire spread prevention panel (110) of the present invention collects rainwater, etc. guided through the bracket and blocks leakage, and prevents the spread of flames or smoke caused by a fire.

[0049] Rainwater, etc. collected through the above-mentioned drainage guidance and fire spread prevention panel flows into the drainage space of the above-mentioned open joint metal panel or the drainage frame.

[0050] Furthermore, the aforementioned drainage guidance and fire spread prevention panel is made of a metal material such as aluminum that is resistant to heat from flames, thereby possessing superior heat resistance and durability compared to existing fiber materials used for fire spread prevention.

[0051] The drainage and fire spread prevention panel (110) may be configured to include a horizontal plane (111) extending from a horizontal frame to an insulating material, an upper folded plane (111a) that is folded upward from the horizontal plane and fixed to the insulating material, a plurality of vertical planes (115) that extend from the horizontal plane to a part of the vertical frame, and a lower folded plane (115a) that is folded at the lower end of the vertical plane and placed on the horizontal plane.

[0052] The above horizontal plane (111) provides a structure that seals the space from the vertical frame and the horizontal frame to the insulation material or the construction wall surface vertically so as to prevent the spread of fire between floors.

[0053] The upper folded surface (111a) above acts as a barrier that prevents rainwater collected by the drainage guidance and fire spread prevention panel from being absorbed into the insulation material.

[0054] The above vertical surface and the lower folded surface are formed separately from the above horizontal surface and are combined in a structure that covers the horizontal surface so that water falling through the vertical surface does not flow back into the horizontal surface.

[0055] Next, the drainage frame (120) of the present invention serves as a drainage guide that transports water falling through the drainage guide and fire spread prevention panel to the outside, and may include a drainage frame fixing part (121) fixed to the lower surface of the horizontal frame, and a drainage frame support part (123) that extends from one side of the drainage frame fixing part and is formed to protrude from the front of the horizontal frame, has an open upper part and a drainage space (124) formed therein, wherein a drainage guide groove part (123a) is formed on the front lower side and a catch projection (123b) is formed on the front upper side.

[0056] The above drainage frame support (123) serves to collect or drain water falling from the vertical frame, and also serves to prevent the gasket fixing flange frame from falling into the drainage space and being dislodged by the catch when the open joint metal panel is separated from the vertical frame or horizontal frame.

[0058] The joint gasket (160) of the present invention may be composed of a main body (161) having an internal space (161a) to have an elastic structure, a front central groove (162) formed in the center of a tapered surface provided at the front end of the main body, and wedge portions (163) formed on both sides of the main body.

[0059] Here, the wedge portion (163) may consist of a front wedge portion (163a) provided at the foremost and at least one rear wedge portion (163b) positioned behind the front wedge portion, and the front wedge portion may be configured to be longer than the rear wedge portion to maximize watertightness.

[0061] In summary, the exterior wall structure of the present invention, equipped with seismic resistance, leakage prevention, and fire spread prevention functions, as shown in FIG. 8, is not only composed of a double leakage blocking structure consisting of an outermost joint gasket and a watertight gasket, but also blocks some rainwater entering the interior of the open joint metal panel from entering the construction wall surface through anchors in the drainage guidance and fire spread prevention panel together with brackets. Furthermore, water collected through the drainage guidance and fire spread prevention panel is discharged to the outside through the open joint metal panel and the drainage frame, thereby maximizing leakage performance.

[0063] Meanwhile, although specific embodiments have been described in the detailed description and accompanying drawings of the present invention, the present invention is not limited to the disclosed embodiments, and various substitutions, modifications, and changes are possible within the scope of the technical spirit of the present invention to those skilled in the art to which the present invention belongs. Accordingly, the scope of the present invention should not be limited to the described embodiments, but should be interpreted to include not only the claims set forth below but also equivalents thereof. Explanation of the symbols

[0065] 100 : Exterior wall structure 101 : Anchor 103 : Bracket 103-1 : Wall mounting surface 103-2: Vertical frame fixing surface 103a: Guide projection for leak prevention 103b: Drainage guide groove 106: Vertical frame 107 : Horizontal frame 110 : Panel 111 : Horizontal plane 111a : Upper folded plane 115: Vertical surface 115a: Lower fold surface 115b : Side fold surface 120 : Drainage frame 121: Drainage channel frame fixing part 123: Drainage channel frame support part 123a: Drainage guide groove 123b: Stopper 124 : Drainage space 130 : Open joint metal panel 130' : Panel member 131 : Side section 133 : Panel fixing part 140: Flange frame for fixing gasket 141: Fixing surface 141a: Fastening member (rivet) 142: Extension surface 142a: Drainage space 143: Gasket fixing body 144 : Locking projection 144a : Insertion coupling projection 150 : Watertight gasket 151 : Connecting body part 152 : Insertion groove 155 : Elastic dome part 155a : Space 160 : Joint gasket 161: Main body 161a: Internal space 162: Anterior central groove 163: Wedge 10 : Construction wall surface 11 : Insulation material

Claims

Claim 1 An open joint metal panel comprising: a panel member having a side portion bent at each side and a panel fixing portion bent outwardly from the end of the side portion; a gasket fixing flange frame fixedly installed on the inner circumference of each side portion; and a watertight gasket fitted and coupled to the gasket fixing flange frame; wherein the gasket fixing flange frame comprises: a fixing surface fixed to the inner circumference of the side portion by a fastening member; an expansion surface bent in a stepped manner from the fixing surface; a gasket fixing body portion formed extending from one side of the expansion surface and in contact with the panel fixing portion, formed in a "C" shape with one side open and having a pair of fitting coupling protrusions formed at both ends; a locking protrusion portion formed extending outwardly from one end of the gasket fixing body portion and perpendicular to the fixing surface; and a drainage space portion partitioned by the expansion surface and the side portion to the panel fixing portion. Claim 2 delete Claim 3 An open joint metal panel according to claim 1, wherein the watertight gasket comprises: a coupling body portion having a pair of fitting groove portions formed at both ends into which the pair of fitting coupling protrusions are fitted; and an elastic dome portion extending from one surface of the coupling body portion, having a space portion formed inside and a cross-sectional structure convex toward one side. Claim 4 A method for manufacturing an open joint metal panel according to claim 1, comprising: a step of providing a panel member having a side portion and a panel fixing portion; a step of riveting the side portion and the panel member together while the fixing surface of the gasket fixing flange frame is positioned to be in contact with the side portion and the expansion surface is positioned to be in contact with the panel fixing portion; and a step of fitting the fitting groove portion of the watertight gasket into the fitting coupling projection of the gasket fixing flange frame to be coupled. Claim 5 An open joint exterior wall structure having seismic resistance, leakage, and fire spread prevention functions, comprising: a vertical frame fixed by a plurality of brackets installed on a construction wall; a horizontal frame installed between vertical frames arranged left and right; a drainage guide and fire spread prevention panel having one end fixed to the construction wall and the other end attached to the horizontal frame; a drainage frame having one end fixed to the lower surface of the horizontal frame and the other end being a free end; and an open joint metal panel installed on the vertical frame and the horizontal frame; wherein the open joint metal panel comprises: a panel member having a side portion bent from each side and a panel fixing portion bent outward from the end of the side portion; a gasket fixing flange frame fixedly installed on the inner circumference of each side portion; and a watertight gasket fitted and coupled to the gasket fixing flange frame. Claim 6 An open joint exterior wall structure having seismic resistance, leakage prevention, and fire spread prevention functions, wherein, in claim 5, the bracket is composed of a wall fixing surface and a vertical frame fixing surface that is bent from the wall fixing surface and fixed to a vertical frame, and the vertical frame fixing surface has a guide projection for leak prevention and a plurality of drainage guide grooves formed in a vertical direction in an area adjacent to the wall fixing surface. Claim 7 In claim 5, the drainage guidance and fire spread prevention panel comprises: a horizontal plane extending from the horizontal frame to the construction wall surface; an upper bent plane bent upward from the horizontal plane and fixed to the construction wall surface; a plurality of vertical planes extending from the horizontal plane to a part of the vertical frame; and a lower bent plane bent at the lower end of the vertical plane and positioned on the horizontal plane; characterized in that it is an open joint exterior wall structure having seismic, leakage and fire spread prevention functions. Claim 8 In claim 5, the drainage frame comprises: a drainage frame fixing part fixed to the lower surface of the horizontal frame; and a drainage frame support part extending from one side of the drainage frame fixing part and protruding from the front of the horizontal frame, having a structure in which the upper part is open and a drainage space is formed, wherein a drainage guiding groove part is formed on the front lower side and a locking projection is formed on the front upper side; wherein the frame support part serves to collect or drain water falling from the vertical frame, and also serves to prevent the gasket fixing flange frame from falling into the locking space and being dislodged by the locking projection when the open joint metal panel is separated from the vertical frame or the horizontal frame.

Images