Composite resin-coated aluminum deck with elastic and drainage functions

Abstract

The present invention is designed to stably respond to contraction / expansion due to seasonal temperature changes and to smoothly drain water accumulating on the upper part of the walkway; A composite synthetic resin coated aluminum deck having expansion and drainage functions is provided, comprising: a deck plate formed by integrating a core material made of an 'aluminum extruded material' having a plurality of hollow through holes formed in the longitudinal direction and an outer shell made of a 'synthetic resin' and applied to the outer surface of the core material; an expansion member that expands laterally between a plurality of deck plates connected laterally while forming a row to correct the gap caused by shrinkage / expansion occurring between the deck plates; and drainage means formed at each end of the deck plate to implement a sealing structure for the upper part of the gap between the deck plates and to guide water accumulated on the upper part of the deck plate into the gap between the deck plates for drainage.

Description

Technology Field

[0001] The present invention relates to a deck suitable for creating pedestrian paths that require smooth movement of people, such as in parks, lakes, and mountains, and designed to promote pedestrian safety and convenience.

[0002] Specifically, the invention relates to a composite synthetic resin coated aluminum deck equipped with expansion and drainage functions, which is formed by connecting the upper portions of a plurality of fixed frames installed on the floor of the walkway to stably respond to contraction / expansion due to seasonal temperature changes while forming the walkway, and to smoothly drain water accumulated on the upper portion, as well as to increase walking safety by increasing frictional force through a plurality of protrusions to prevent slipping.

[0003] More specifically, the invention relates to a composite synthetic resin coated aluminum deck equipped with expansion and drainage functions, wherein an LDPE-based synthetic resin is applied to the outer surface of an aluminum extruded material through adhesion using a SEBS mixed adhesive to provide elasticity and prevent slipping, thereby ensuring structural stability and safety in use. Background Technology

[0004] Generally, various types of decks are constructed and used as a means to create an optimal walking environment for pedestrians in areas requiring smooth movement, such as walking paths and hiking trails in parks, lakes, and mountains. This is done to create a beautiful, nature-friendly environment that harmonizes with the surrounding natural landscape, or to ensure the safety and convenience of pedestrians in terrain where walking is difficult.

[0005] Recently, driven by growing interest in the surrounding environment and the pursuit of nature-friendly living, the demand for wooden decks has been steadily increasing. Consequently, they are now being applied and constructed in private buildings such as houses and pensions.

[0006] Looking at the basic structural configuration of such a deck, it comprises fixed frames installed to support the overall structure on the ground according to the terrain, having a length and forming a 'beam' shape, and installed parallel to the floor with spacing between them; floor panels connecting the upper parts of the fixed frames to form a floor surface where pedestrians can walk; and fixing elements for fixing the floor panels to the fixed frames.

[0007] That is, the floor panels are connected to and placed on the upper part of the fixed frames, and then assembled by fixing them using the fixing elements (nails, screws, etc.).

[0008] In Korean Utility Model Registration No. 20-0396804 (Title: Assembly Deck for Flooring / Published September 27, 2005), as disclosed in the publication, a plurality of base beams are formed with a plurality of height adjustment holes formed on the lower surface at predetermined intervals in the longitudinal direction, the upper surface is open, and an upper guide portion is formed in a shape that is bent to protrude upward from both sides in the longitudinal direction and face each other; a connecting support member that connects and supports the plurality of base beams; and a plurality of floor panels installed to intersect the plurality of base beams and having a plurality of coupling grooves formed on both sides in the longitudinal direction. A panel coupling member is described comprising: a guide plate formed such that its front-to-back width is smaller than the width of the base beam in the same direction as the length of the base beam so as to be rotated and fitted at a predetermined position in the length direction of the upper guide portion of the base beam on the lower side; a panel coupling plate formed such that it is spaced apart from the guide plate at a predetermined distance and can be fitted into a coupling groove formed in the bottom panel; a connecting portion that connects the guide plate and the panel coupling plate, and has a guide groove formed inwardly so as to be fitted into the upper guide portion in the lower part connected to the guide plate; and a deck comprising a coupling column having screw threads formed on its outer surface to be coupled to the height adjustment hole, and a height adjustment portion having a support portion provided at the lower end of the coupling column.

[0009] In addition, Korean Patent Registration No. 10-1873632 (Title: Deck Assembly Device / Published on July 2, 2018), as disclosed in the publication, a deck assembly device is described comprising: a base; a plurality of decks seated on the base and having coupling grooves on both sides; and an installation part that interconnects one of the decks with another deck; wherein the coupling groove forms a gap on the upper or lower side of the protrusion and includes a cushioning part inserted into the gap to absorb shock applied to the deck, and the cushioning part includes: a pair of support parts supported on the upper side of the protrusion; and an elastic part that interconnects the support parts and contacts the bottom surface of the coupling groove to exert elastic force, wherein the elastic part is formed in an arc shape that is convexly curved upward, and the cushioning part has a range of 60 to 98% of the area of ​​the protrusion when pressed to a maximum extent.

[0010] Meanwhile, Korean Utility Model Registration No. 20-0411719 (Title: Deck System for Flooring / Published on March 20, 2006) describes a deck system for flooring comprising, as disclosed in the publication, base beams installed parallel to the floor panel at a predetermined interval and intersecting with the floor panel to support the floor panel, and connecting support members that mutually connect and support the plurality of base beams, wherein the deck system comprises: two edge base beams having a bent structure with a side cross-section in the shape of an 'ㄱ' to finish the floor panel, and fixing brackets installed at the front and rear ends of the plurality of base beams respectively; and a finishing material coupled to the fixing brackets to finish the floor panel.

[0011] In addition, Korean Utility Model Registration No. 20-0418125 (Title: Deck for flooring / Published June 8, 2006), as disclosed in the publication, an assembled deck for flooring is configured to include a base beam installed parallel to the floor panel at a predetermined interval and intersecting the floor panel to support the floor panel, a connecting support member that interconnects and supports the plurality of base beams, and a panel connecting member that connects the floor panel. In this configuration, the base beam has an open upper surface and an upper guide portion formed in a shape that is bent to protrude upward from both sides in the longitudinal direction and face each other; and the floor panel has connecting grooves formed on both sides in the longitudinal direction. The above panel coupling member is made of an elastic body and comprises a panel coupling plate that is fitted into the coupling grooves of adjacent floor panels to connect the floor panels to each other, a rib formed protruding vertically in the longitudinal direction of the floor panels on the central part of the upper surface of the panel coupling plate to separate the adjacent floor panels by a predetermined distance, and a connecting plate formed vertically in the longitudinal direction of the floor panels on the central part of the lower surface of the panel coupling plate and provided with guide grooves formed in indented at predetermined positions on both sides to be fitted into the upper guide part of the base beam to enable sliding coupling. Prior art literature

[0012] Korean Utility Model Registration No. 20-0396804 (Published Sep. 27, 2005) Korean Patent Registration No. 10-1873632 (Published July 2, 2018) Korean Utility Model Registration No. 20-0411719 (Published March 20, 2006) Korean Utility Model Registration No. 20-0418125 (Published June 8, 2006) The problem to be solved

[0013] However, conventional decks as described above had a significant problem in that the deck plates forming the floor of the walkway were made of a single unit of wood, synthetic resin, or metal, resulting in disadvantages due to the material characteristics.

[0014] In particular, regarding structural strength, thermal conductivity, impact / chemical resistance, and seasonal shrinkage / expansion, not only was it difficult to satisfy high performance, but there was also a problem in that it could not be applied appropriately for seasonal shrinkage / expansion.

[0015] The present invention is proposed to solve the aforementioned conventional problems. The objective of the present invention is to provide a composite synthetic resin coated aluminum deck equipped with expansion and drainage functions, which is suitable for creating walking paths that require smooth pedestrian movement, such as in parks, lakes, and mountains, thereby promoting pedestrian safety and convenience. It is designed to stably respond to contraction / expansion due to seasonal temperature changes while forming a walking path by connecting the upper parts of a plurality of fixed frames installed on the floor of the walking path, and to smoothly drain water accumulated on the upper part, as well as increase pedestrian safety by preventing slipping through increased frictional force via a plurality of protrusions. In particular, it is designed to promote structural stability and safety in use by applying an LDPE-based synthetic resin to the outer surface of an aluminum extruded material through adhesion using a SEBS mixed adhesive to ensure elasticity and prevent slipping. means of solving the problem

[0016] A composite synthetic resin coated aluminum deck equipped with expansion and drainage functions according to the present invention, for achieving the purpose of the present invention as described above, comprises: a core material made of an 'aluminum extruded material' having a plurality of hollow through holes formed in the longitudinal direction and a sliding protrusion formed protruding in the longitudinal direction; a deck plate (2) formed by bonding the core material and the synthetic resin outer shell together by SEBS mixed adhesive, wherein the deck plates are expanded and connected in the transverse direction to correct the gap caused by shrinkage / expansion occurring between the deck plates; an anti-slip cover (4) formed on the deck plate having a receiving portion formed for screw connection to a fixed frame, friction protrusions made of an elastic material formed on the upper surface of the receiving portion, and contact portions formed on both sides protruding to be fitted and connected to contact protrusions formed on both sides of the deck plate; and upper drainage plates and lower drainage plates connected in surface contact with each other at both ends of the deck plate, and the The lower drainage plate is formed with a downward sloping surface towards the leading edge to guide water accumulated on the upper part of the deck plate into the gap of the deck plate so that it can easily seep into the lower part of the deck plate, and the drainage means (5) is configured such that the outer surface of the core material of the deck plate is formed with an uneven structure to strengthen adhesion and impact resistance with the outer shell, and the expansion member includes a metal base bracket with an open upper part inside, and an expansion pad made of an elastic material on the outer surface of the base bracket, and both sides of the expansion member have a fitting portion formed to be connected to the fitting protrusions formed on both sides of the deck plate, and the anti-slip cover has a hollow central part and a contact groove formed on the lower part to support the head of the fixing screw through surface contact, thereby preventing the fixing screw from unintentionally loosening and increasing the stability of the binding structure, and on both sides of the deck plate,The above-mentioned expansion member is characterized by having protruding fitting protrusions formed to be inserted into and secured by fitting grooves formed protruding outwardly from both sides of the expansion member, thereby enabling stable expansion coupling and drainage operations.

[0017] delete

[0018] delete Effects of the invention

[0020] The composite synthetic resin-coated aluminum deck with expansion and drainage functions according to the present invention, constructed as described above, has the effect of realizing pedestrian safety and convenience by forming a flat walking surface on top of a fixed frame installed on a floor intended for pedestrian walkways, such as in parks, lakes, or mountains, by forming rows and columns on the upper part of the frame and connecting the deck plates through screw fastening with fixing screws.

[0021] In particular, by using an expansion member provided in the gap formed while the deck plates are connected in the transverse direction, it is possible to stably respond to shrinkage / expansion due to seasonal temperature changes, thereby ensuring structural stability. Furthermore, by closing the upper part of the expansion member placed in the connection gap of the deck plates through a drainage means and simultaneously allowing water accumulating on the upper part of the deck plates to be drained smoothly, it has the effect of improving walking stability and safety.

[0022] In addition, by sealing the receiving portion formed in the deck plate with an anti-slip cover, it prevents the fixing screw from being exposed to the outside, and also increases friction through multiple protrusions to prevent slipping, thereby enhancing walking safety.

[0023] In addition, by applying an outer shell made of LDPE-based synthetic resin to the outer surface of the core material constituting the deck plate through bonding with SEBS mixed adhesive to integrate it, it has the effect of increasing structural stability and safety in use by preventing elasticity and slipping. Brief explanation of the drawing

[0024] FIG. 1 is a schematic illustration showing a composite synthetic resin coated aluminum deck equipped with expansion and drainage functions according to one embodiment of the present invention. FIG. 2 is a schematic example diagram showing a deck plate constituting a composite synthetic resin coated aluminum deck equipped with expansion and drainage functions according to the present embodiment. FIGS. 3 and 4 are schematic example diagrams showing an expansion member constituting a composite synthetic resin coated aluminum deck equipped with expansion and drainage functions according to the present embodiment. FIG. 5 is a schematic example diagram showing a drainage means constituting a composite synthetic resin coated aluminum deck equipped with expansion and drainage functions according to the present embodiment. FIGS. 6 to 8 are schematic example diagrams showing the connection portions of deck plates in a composite synthetic resin coated aluminum deck equipped with expansion and drainage functions according to the present embodiment. FIGS. 9 and 10 are schematic example diagrams showing an anti-slip cover constituting a composite synthetic resin coated aluminum deck equipped with expansion and drainage functions according to the present embodiment. Specific details for implementing the invention

[0025] Hereinafter, with reference to the attached drawings, a composite synthetic resin coated aluminum deck equipped with expansion and drainage functions according to a preferred embodiment of the present invention will be described in detail as follows.

[0026] Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be interpreted as being limited to the embodiments described in detail below. These embodiments are provided to more fully explain the present invention to those with average knowledge in the art. Accordingly, the shapes of elements in the drawings may be exaggerated to emphasize clearer explanations. It should be noted that in each drawing, identical components may be depicted with the same reference numeral. Detailed descriptions of known functions and configurations that are deemed to unnecessarily obscure the essence of the present invention are omitted.

[0028] FIGS. 1 to 10 are drawings showing a composite synthetic resin coated aluminum deck (1) equipped with expansion and drainage functions according to an embodiment of the present invention. The composite synthetic resin coated aluminum deck (1) equipped with expansion and drainage functions according to the present embodiment comprises: a core material (21) made of an 'aluminum extruded material' having a plurality of hollow through holes formed in the longitudinal direction, and a deck plate (2) formed by integrating an outer shell (22) made of 'synthetic resin' and applied to the outer surface of the core material (21); and an expansion member (3) that expands laterally between a plurality of deck plates (2) that form a row and are connected laterally to correct the gap caused by shrinkage / expansion occurring between the deck plates (2).

[0029] That is, a plurality of the aforementioned deck plates (2) are connected by screwing them together with fixing screws (11) on top of fixed frames (10) that are installed at intervals on the floor to be used for a walkway for smooth pedestrian movement, forming 'rows and columns' along the length of the walkway, thereby creating a flat walkway floor on top, which is suitable for implementing pedestrian safety and convenience.

[0030] In addition, regarding the gap formed while the deck plates (2) are connected laterally in the fixed frame (10), the expansion member (3) is provided between each of the deck plates (10), and the expansion member (3) is fitted and expands to respond to the change in the gap of the deck plates (2) caused by shrinkage / expansion due to thermal deformation caused by seasonal temperature changes of the deck plates (2).

[0031] Accordingly, the structural durability of the connection structure of the above deck plates (2) is improved.

[0032] In addition, through the plurality of through holes hollowly formed inside the deck plate (2), heat is released through the circulation of air, thereby minimizing thermal deformation and increasing structural stability.

[0034] In the above, the fixed frame (10) may be made of a 'pipe structure' made of 'metal' material and hollowed out with both ends penetrating, or may be made of a 'square pipe structure' with a 'square' cross-section; the configuration and structure thereof may be appropriately applied according to the user's choice.

[0036] In the above, the deck plate (2) is formed as a ‘double structure’ in which the outer shell (22) is integrally applied to the outer surface of the core material (21).

[0037] In other words, it is formed with a 'double laminated structure' of 'aluminum extrusion' and 'synthetic resin,' ensuring structural strength and durability according to the respective material characteristics.

[0039] The aluminum extruded material constituting the core material (21) of the deck plate (2) above may be made of an ‘aluminum alloy’ containing Mg and Si; and the synthetic resin constituting the outer shell of the deck plate (2) may be made of ‘LDPE (Low Density Polyethylene)’ as the main material.

[0040] That is, the core material (21) may be given material properties that prevent localized temperature rise by having high thermal conductivity; and the outer shell (22) may be given material properties that maintain flexibility, impact resistance, chemical resistance, and low temperature performance.

[0041] Through this, the structural stability and durability of the above-mentioned deck plate (2) can be improved in combination.

[0043] The above deck plate (2) can be formed by applying the outer shell (22) to the core material (21) to integrate them through an adhesive.

[0044] In addition, the adhesive mentioned above may be composed of a 'SEBS mixed-series adhesive'; the composition thereof may be suitably applied according to the user's choice.

[0045] That is, the tensile strength, elasticity, and compatibility between the core material (21) and the outer shell (22) can be improved according to the material properties of the adhesive, while being integrated.

[0047] Meanwhile, on the outer surface of the core material (21) above, 'serrated' 'protrusions (23)' are formed by connecting to each other, so that the bonding portion between the outer shell (22) and the adhesive can be formed as an 'uneven structure'.

[0048] That is, as the core material (21), the outer shell (22), and the adhesive are integrated and bonded through the contact surface of the 'uneven structure', the bonding area is efficiently maximized, thereby strengthening the adhesive strength and impact resistance.

[0050] In the above, on the upper surface of the deck plate (2), receiving portions (24) are formed to accommodate the fixing screw (11) that is screw-coupled to the fixing frame (10) and inserted into the interior; the receiving portions (24) can be sealed by attaching an anti-slip cover (4) made of an elastic material, with friction protrusions (41) formed on the upper surface.

[0051] That is, the deck plate (2) is connected to the fixed frame (10) while the fixing screw (11) is embedded in the receiving portion (24); at this time, the fixing screw (11) is prevented from being exposed to the outside from the receiving portion (24) through the anti-slip cover (4), thereby preventing unauthorized damage.

[0052] In addition, the multiple friction protrusions (41) formed on the upper surface of the anti-slip cover (4) can prevent slipping during walking, thereby further ensuring walking stability.

[0053] In addition, the outer shell (22) of the deck plate (2) made of 'synthetic resin material' and the anti-slip cover (4) made of 'elastic material' come into contact to close the receiving portion (24), thereby increasing airtightness and waterproofness through elastic contact, and preventing rainwater from flowing into the receiving portion (24), thus preventing corrosion of the fixing screw (11).

[0055] The above anti-slip cover (4) may be made of a ‘synthetic resin injection molded structure’ in the shape of a ‘pipe’ that is hollow in the longitudinal direction.

[0056] That is, air circulates inside through the hollow of the anti-slip cover (4), causing it to expand elastically, thereby increasing structural stability by cushioning the upper surface and offsetting vibration loads.

[0058] In the above, on both sides of the receiving portion (24), contact protrusions (25) may be formed so as to be fitted into and contact with the contact portions (42) formed on both sides of the anti-slip cover (4) to be secured.

[0059] That is, while the anti-slip cover (4) is fitted into the receiving portion (24) and combined, each of the contact portions (42) are fitted into each of the contact protrusions (25) and bound together, thereby preventing unauthorized separation.

[0061] In the above, a contact groove (43) in which the head portion of the fixing screw (11) is received may be formed on the bottom surface of the anti-slip cover (4).

[0062] That is, the head portion of the fixing screw (11) is received in the contact groove (43) and elastically supported while in surface contact with the head portion of the fixing screw (11), thereby preventing the fixing screw (11) from unraveling by uncontrolled screw rotation, which can further increase the stability of the binding structure.

[0064] In the above, a plurality of sliding protrusions (26) that are formed protruding in the longitudinal direction may be formed on the upper surface of the deck plate (2).

[0065] That is, the frictional force in the lateral direction during walking is increased through the above-mentioned sliding protrusions (26), thereby preventing slipping and further ensuring walking stability.

[0067] In the above, the sliding projection (26) can be integrally formed and provided during the extrusion molding of the core material (21); the number and position thereof can be appropriately applied as selected by the user.

[0069] The above-described elastic member (3) may include a metal base bracket (31) with an open top inside; and an elastic pad (32) made of an elastic material that wraps around and binds the two sides and bottom of the base bracket (31).

[0070] That is, the expansion member (3) between the deck plates (2) can be expanded through the expansion pad (32) to ensure structural durability through the base bracket (31) and prevent excessive deformation, thereby expanding in accordance with the expansion when the gap between the deck plates (2) contracts and expands, and can be supported and connected while automatically correcting the deformed gap of the deck plates (2) according to the season (3~5mm in summer, 5~8mm in winter).

[0072] In the above, on both sides of the deck plate (2), fitting protrusions (27) may be formed so as to be fitted into and secured by fitting portions (33) formed protruding outwardly from both sides of the expansion member (3).

[0073] That is, as the expansion member (3) is positioned and connected between the deck plates (2), the fitting protrusion (27) is fitted into the fitting portion (33) and secured, thereby further increasing the stability of the connection structure and improving constructability.

[0075] The composite synthetic resin coated aluminum deck (1) having expansion and drainage functions according to this embodiment includes a drainage means (5) formed on each of the two ends of the deck plate (2) to provide a sealed structure over the upper part of the gap between the deck plates (2) and to guide water accumulated on the upper part of the deck plate (2) into the gap between the deck plates (2) for drainage.

[0076] That is, the upper part of the expansion member (3) positioned between the deck plates (2) is closed through the drainage means (5), and at the same time, water accumulated on the upper part of the deck plate (2) is smoothly drained.

[0077] Accordingly, walking stability and safety are improved during the rainy season.

[0079] The drainage means (5) above is composed of an upper drainage plate (51) and a lower drainage plate (52) that are integrally extended and have a length in the outward direction at each of the two ends of the deck plate (2); the upper drainage plate (51) may be provided at a position where a 'drainage gap' is formed on the upper part of the lower drainage plate (52) at the end of each of the deck plates (2) that are connected to each other while having the expansion member (3) placed between them.

[0080] That is, the lower drain plate (52) and the upper drain plate (51) are sequentially stacked and arranged on the upper part of the expansion member (3) between the deck plates (2), thereby closing the upper part of the expansion member (3) to prevent the expansion member (3) from moving out of the way, and allowing water accumulated on the upper part of the deck plate (2) to pass through the space between the deck plates (2) and drain to the lower part through the 'drainage gap' formed between the upper drain plate (51) and the lower drain plate (52).

[0081] At this time, a plurality of the above-mentioned expansion members (3) are each arranged between the above-mentioned deck plates (2) at intervals in the longitudinal direction to stably secure a 'drainage space' for drainage, thereby allowing the drainage work to be carried out stably.

[0083] In the above, the protruding length (L) of the upper drain plate (51) and the lower drain plate (52) can be 1 / 2 to 3 / 4 of the width (W) between the two ends of the expansion member (3).

[0084] That is, the 'drainage gap' formed between the above deck plates (2) is ' It is formed in a shape such that the upper part of the above-mentioned expansion member (3) is not exposed, and a stable 'drainage space' can be formed.

[0086] The surface where the upper drain plate (51) and the lower drain plate (52) face each other in the above may be formed as an 'inclined surface' having a 'slope angle' that slopes downward toward the front end of the lower drain plate (52).

[0087] That is, the 'drainage gap' formed between the deck plates (2) forms a 'downward slope angle' so that drainage work can be carried out more smoothly.

[0089] The composite synthetic resin coated aluminum deck (1) equipped with expansion and drainage functions according to the present embodiment as described above is characterized by a technical configuration in which the expansion member (3) is adjusted to fit between the deck plates (2) connected laterally to the fixed frame (10) through expansion and contraction / expansion, and the upper part of the expansion member (3) is closed through the drainage means (5) formed on both ends of the deck plates (2), and at the same time, a 'drainage path' is formed to smoothly drain water accumulated on the upper part of the deck plates (2).

[0091] The embodiment of the present invention described above is merely illustrative, and those skilled in the art will readily understand that various modifications and equivalent alternative embodiments are possible therefrom. Therefore, it will be understood that the present invention is not limited only to the forms mentioned in the above detailed description. Accordingly, the true technical scope of protection of the present invention should be determined by the technical spirit of the appended claims. Furthermore, the present invention should be understood to include all modifications, equivalents, and substitutions within the spirit and scope of the present invention as defined by the appended claims. Explanation of the symbols

[0092] 1 : Deck 10 : Fixed frame 11 : Fixing screw 2 : Deck plate 21 : Core material 22 : Outer shell 23 : Protrusion 24 ; Receiving part 25 : Close-fitting protrusion 26 : Sliding ledge 27 : Insertion ledge 3 : Extension member 31 : Base bracket 32 : Stretch pad 33 : Insertion part 4 : Anti-slip cover 41 : Friction protrusions 42 : Close-fitting part 43 : Close-fitting groove 5 : Drainage means 51 : Upper drain plate 52 : Lower drain plate L: Protruding length of the upper drain plate and lower drain plate W: Width between the two ends of the expansion member

Claims

Claim 1 A deck plate (2) comprising a core made of an 'aluminum extruded material' having a plurality of hollow through holes formed longitudinally and a sliding protrusion formed longitudinally, an outer shell made of synthetic resin formed on the outer surface of the core, and bonded between the core and the synthetic resin outer shell by SEBS mixed adhesive; an expansion member (3) that compensates for the gap caused by shrinkage / expansion occurring between the deck plates by extending and contracting the deck plates laterally; and an anti-slip cover (4) having a receiving portion formed on the deck plate for screw connection to a fixed frame, friction protrusions made of an elastic material formed on the upper surface of the receiving portion, and a contact portion formed on both sides to be fitted and connected to the contact protrusions formed on both sides of the deck plate. A drainage means (5) wherein upper drainage plates and lower drainage plates are joined at both ends of the deck plate in surface contact with each other, and the lower drainage plate is formed with a downward sloping surface toward the leading edge to guide water accumulated on the upper part of the deck plate into the gap of the deck plate so that it can easily seep into the lower part of the deck plate;A composite synthetic resin-coated aluminum deck equipped with expansion and drainage functions, comprising: a core outer surface of the deck plate formed with an uneven structure to enhance adhesion and impact resistance with the outer shell; an expansion member comprising a metal base bracket with an open top inside and an expansion pad made of an elastic material on the outer surface of the base bracket; two sides of the expansion member having a fitting groove formed to engage with a fitting projection formed on both sides of the deck plate; an anti-slip cover having a hollow central portion and a contact groove formed on the lower portion to support the head of a fixing screw through surface contact, thereby preventing the fixing screw from unintentionally loosening and increasing the stability of the binding structure; and two sides of the deck plate having a fitting projection formed to engage with and engage with the fitting groove protruding outwardly from both sides of the expansion member, thereby enabling stable expansion coupling and drainage operations. Claim 2 delete Claim 3 delete Claim 4 delete

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