A color steel sandwich panel hidden splicing structure

Abstract

This utility model relates to the technical field of color steel sandwich panels, and is a concealed splicing structure for color steel sandwich panels. It includes multiple sequentially spliced ​​color steel sandwich panels and connecting tenons. Each color steel sandwich panel includes a top panel, a bottom panel, a core material, and splicing end plates fixed to the left and right ends of the core material. The top panel has wavy, undulating stripes, and the core material is filled between the top and bottom panels. This utility model has a reasonable and compact structure, is easy to use, and is installed in the corresponding dovetail slots of adjacent color steel sandwich panels through the insertion of connecting tenons. It can achieve fixed splicing of adjacent color steel sandwich panels. The structure is simple, the manufacturing cost is low, the construction operation is simple and quick, the installation efficiency is high, the appearance is flat and beautiful, and the service life of the building wall panels is long. It has the characteristics of safety, labor-saving, simplicity, and high efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of color steel sandwich panels, specifically a hidden splicing structure for color steel sandwich panels. Background Technology

[0002] Color steel sandwich panels are a common building material, offering excellent flame retardancy, sound insulation, and environmental friendliness. They consist of two layers of metal panels pressed together with a middle layer of high-polymer thermal insulation core, making them easy to install, lightweight, and environmentally friendly. The closed-cell molecular structure used in the filling system prevents moisture condensation. Currently, traditional color steel sandwich panels are typically assembled using bolts and connectors to secure multiple panels together. While this method provides a relatively stable connection, the exposed screws are prone to rust and are visible from the outside of the building. This not only makes installation cumbersome and inefficient but also results in poor aesthetics, reduced building lifespan, and potential water seepage at the joints.

[0003] Chinese patent document CN218028234U discloses a novel color steel sandwich panel, which includes two color steel sandwich panel bodies with a splicing mechanism between them. The splicing mechanism includes a first splicing plate, a second splicing plate, a guide rod, a tension spring, an L-shaped plate, a locking block, a fixing block, and a pulling plate. By using splicing strips installed on both sides of the color steel sandwich panel bodies and in conjunction with the splicing mechanism, the two color steel sandwich panel bodies are joined together. The first and second splicing plates are then secured to the upper and lower ends of the symmetrical splicing strips by the locking strips. Then, the pulling plate is flipped inward and moved so that the locking block is engaged in the locking groove, thus limiting the pulling plate and connecting the first and second splicing plates together. The splicing mechanism uses a snap-fit ​​method to quickly assemble and install the color steel sandwich panel bodies together, facilitating subsequent disassembly of the color steel sandwich panel bodies. While this type of color steel sandwich panel splicing method enables rapid assembly of sandwich panels, the following problems exist in actual use: 1. The splicing mechanism involves many components, requires high processing precision, has high manufacturing costs, and involves complex assembly and construction procedures, resulting in cumbersome operation and low installation efficiency; 2. Exposed pull plates cause unevenness on the outer side of the color steel sandwich panels, affecting the aesthetic appearance of the wall panels; 3. Rain and snowmelt can easily enter the splicing mechanism, and after being exposed to wind and sun, the springs and rotating parts are prone to rust, causing the pull plates to jam and become obstructed when flipping, making it difficult to disassemble the sandwich panels and even affecting the lifespan of the building wall panels. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a hidden splicing structure for color steel sandwich panels, which overcomes the shortcomings of the existing technology. It can effectively solve the problems of complex splicing mechanism, high manufacturing cost, complicated construction operation, low installation efficiency, poor aesthetics, and reduced lifespan of building wall panels in the existing splicing mechanism of color steel sandwich panels.

[0005] The technical solution adopted by this utility model is: a concealed splicing structure for color steel sandwich panels, comprising multiple sequentially spliced ​​color steel sandwich panels and connecting tenons. Each color steel sandwich panel includes a top panel, a bottom panel, a core material, and splicing end plates fixed to the left and right ends of the core material. The top panel has wavy, undulating stripes. The core material is filled between the top and bottom panels. The outer surface of the core material has stripes with the same shape and position as the stripes. The core material is bonded and fixed to the top and bottom panels respectively. The splicing end plates include splicing plate one and splicing plate two with identical structure and size. Both splicing plate one and splicing plate two include an embedded part and a mating part with a dovetail groove. One end of the embedded part is embedded and fixed to the core material. Inside, the other end of the embedded part is integrated with the docking part. A splicing plate one is fixed to the upper left end of the middle core material, and its dovetail groove opening faces downward. A splicing plate two is fixed to the lower right end of the middle core material, and its dovetail groove opening faces upward. Structural screws for fixing the color steel sandwich panel and the transverse purlin can be installed in the dovetail groove with the opening facing upward. The docking part of the splicing plate one of the adjacent color steel sandwich panel on the right sits on the upper end of the docking part of the splicing plate two of the color steel sandwich panel. The dovetail groove of the splicing plate one of the adjacent color steel sandwich panel on the right is aligned with the dovetail groove of the splicing plate two of the color steel sandwich panel and a connecting tenon is inserted. A nail head receiving cavity that can accommodate the end of the structural screw is formed between the lower end of the connecting tenon and the bottom of the dovetail groove of the splicing plate two.

[0006] The following are further optimizations and / or improvements to the technical solution applied for:

[0007] Furthermore, as a preferred embodiment, the connecting tenon is a hollow tube column with a bow-tie cross-section. The lower part of the connecting tenon is installed in the dovetail groove of the splicing plate two, and the upper part of the connecting tenon is installed in the dovetail groove of the splicing plate one. The narrower middle part of the connecting tenon is fitted into the openings of the upper and lower dovetail grooves.

[0008] Furthermore, as a preferred embodiment, the mating end plate is provided with a flanged groove on the side end face, and the edge of the upper panel or the lower panel is bent and bonded to be fixed in the flanged groove.

[0009] Furthermore, as a preferred embodiment, the left edge of the lower panel is bent upward to form a left inner clamping flange, and the middle of the left inner clamping flange is provided with an inner sealing ridge protruding to the left; the right edge of the lower panel is bent upward to form a right inner clamping flange, and the middle of the right inner clamping flange is provided with an inner limiting groove that can be adapted to the inner sealing ridge of the adjacent color steel sandwich panel on the right; the right edge of the upper panel is bent downward to form a right outer clamping flange, and the middle of the right outer clamping flange is provided with an outer sealing ridge protruding to the right; the left edge of the upper panel is bent downward to form a left outer clamping flange, and the middle of the left outer clamping flange is provided with an outer limiting groove that can be adapted to the outer sealing ridge of the adjacent color steel sandwich panel on the left.

[0010] Furthermore, as a preferred embodiment, both ends of the intermediate core material are provided with edge trimming material, the edge trimming material is non-foamed, the embedded part of the splicing end plate is embedded and solidified in the edge trimming material, and the splicing end plate is bonded and fixed to the corresponding upper or lower panel.

[0011] Furthermore, as a preferred embodiment, the intermediate core material includes any one of rock wool core material, glass wool core material, polyurethane core material, polystyrene board core material, non-foam core material, phenolic core material, paper honeycomb core material, glass magnesium core material, and magnesium oxysulfate core material.

[0012] This utility model has a reasonable and compact structure and is easy to use. It is installed in the corresponding dovetail slots of two adjacent color steel sandwich panels by connecting tenon columns, which can realize the fixed splicing of adjacent color steel sandwich panels. It has a simple structure, low manufacturing cost, simple and quick construction operation, high installation efficiency, flat and beautiful appearance, and long service life of building wall panels. It has the characteristics of safety, labor saving, simplicity and high efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of a single color steel sandwich panel of this utility model;

[0014] Figure 2 This is a schematic diagram of the splicing structure when the present invention is in use;

[0015] Figure 3 for Figure 2 A magnified structural diagram at point C.

[0016] Legend: 1 is the top panel, 101 is the right outer retaining flange, 102 is the outer sealing ridge, 103 is the left outer retaining flange, 104 is the outer limiting groove; 2 is the bottom panel, 201 is the left inner retaining flange, 202 is the inner sealing ridge, 203 is the right inner retaining flange, 204 is the inner limiting groove; 3 is the middle core material, 301 is the edge trim; 4 is the splicing end plate, 401 is the embedded part, 402 is the butt joint part, 403 is the dovetail groove; 5 is the connecting tenon; 6 is the structural screw; 7 is the transverse purlin; 8 is the nail head receiving cavity; A is the splicing plate one; B is the splicing plate two. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] Example 1:

[0019] As attached Figures 1-3 As shown, this utility model provides a concealed splicing structure for color steel sandwich panels, including multiple color steel sandwich panels spliced ​​sequentially and connecting tenons 5. Each color steel sandwich panel includes an upper panel 1, a lower panel 2, a middle core material 3, and splicing end plates 4 fixed to the left and right ends of the middle core material 3. The upper panel 1 has wavy, undulating striped patterns. The middle core material 3 is filled between the upper panel 1 and the lower panel 2. The outer surface of the middle core material 3 has patterns with the same shape and position as the striped patterns. The middle core material 3 is bonded and fixed to the upper panel 1 and the lower panel 2 respectively. The splicing end plates 4 include splicing plate A and splicing plate B with identical structure and size. Both splicing plate A and splicing plate B include an embedded part 401 and a mating part 402 with a dovetail groove 403. One end of the embedded part 401 is embedded and fixed in the middle core material 3. The other end of 1 is integrated with the docking part 402. The upper left end of the middle core material 3 is fixed with splicing plate A and its dovetail groove 403 opening downwards. The lower right end of the middle core material 3 is fixed with splicing plate B and its dovetail groove 403 opening upwards. The dovetail groove 403 with the opening upwards can be used to install structural screws 6 for fixing the color steel sandwich panel and the transverse purlin 7. The docking part 402 of the splicing plate A of the adjacent color steel sandwich panel on the right sits on the upper end of the docking part 402 of the splicing plate B of the color steel sandwich panel. The dovetail groove 403 of the splicing plate A of the adjacent color steel sandwich panel on the right is aligned with the dovetail groove 403 of the splicing plate B of the color steel sandwich panel and is connected with a connecting tenon 5. The lower end of the connecting tenon 5 and the bottom of the dovetail groove 403 of the splicing plate B form a nail head receiving cavity 8 that can accommodate the end of the structural screw 6.

[0020] By inserting the tenon 5 into the corresponding dovetail slot 403 of two adjacent color steel sandwich panels, the adjacent color steel sandwich panels can be fixedly spliced. The product has good sealing at the splice, simple structure, low manufacturing cost, simple and quick construction operation, high installation efficiency, flat and beautiful appearance, and long service life of building wall panels. It has the characteristics of safety, labor saving, convenience and high efficiency. By making the structures and dimensions of splicing panels A and B identical, the variety of specifications for splicing end panels 4 is greatly reduced, making them more applicable and significantly reducing the manufacturing, processing, and storage costs of this utility model. The design of the dovetail groove 403 on the splicing end panel 4 facilitates the fixing of the color steel sandwich panel to the transverse purlin 7 with structural screws 6, and hides the ends of the structural screws 6, avoiding the disadvantage of the external screws affecting the appearance when installing and splicing ordinary color steel sandwich panels. By processing the upper panel 1 into a corrugated shape, the wall panel of the color steel sandwich panel has a stronger three-dimensional effect and is more beautiful under light, while significantly improving the strength and wind resistance of the color steel sandwich panel.

[0021] Example 2:

[0022] As attached Figures 1-3 As shown, the difference between this embodiment and Embodiment 1 is that the connecting tenon 5 is a hollow tube with a bow-tie cross-section. The lower part of the connecting tenon 5 is installed in the dovetail groove 403 of the splicing plate B, and the upper part of the connecting tenon 5 is installed in the dovetail groove 403 of the splicing plate A. The narrower middle part of the connecting tenon 5 fits into the openings of the upper and lower dovetail grooves 403. The connecting tenon 5 can fix the two color steel sandwich panels together, making installation and disassembly more convenient for users. The hollow tube of the connecting tenon 5 can greatly reduce material consumption, reduce manufacturing costs, and reduce its weight. The appropriate wall thickness can be selected according to actual needs.

[0023] Example 3:

[0024] As attached Figures 1-3 As shown, the difference between this embodiment and embodiments 1 and 2 is that the mating portion 402 of the splicing end plate 4 is provided with a flanged groove, and the edge of the upper panel 1 or the lower panel 2 is bent and bonded to the flanged groove. When the splicing end plate 4 is located at the upper left part of the middle core material 3, that is, splicing plate one A, the left edge of its upper panel 1 is bent and bonded to the flanged groove of splicing plate one A; when the splicing end plate 4 is located at the lower right part of the middle core material 3, that is, splicing plate two B, the right edge of its lower panel 2 is bent and bonded to the flanged groove of splicing plate two B.

[0025] Example 4:

[0026] As attached Figures 1-3As shown, the difference between this embodiment and embodiments 1-3 is that the left edge of the lower panel 2 is bent upward to form a left inner clamping flange 201, and the middle of the left inner clamping flange 201 is provided with an inner sealing ridge 202 protruding to the left. The right edge of the lower panel 2 is bent upward to form a right inner clamping flange 203, and the middle of the right inner clamping flange 203 is provided with an inner limiting groove 204 that can be adapted to the inner sealing ridge 202 of the adjacent color steel sandwich panel on the right. The right edge of the upper panel 1 is bent downward to form a right outer clamping flange 101, and the middle of the right outer clamping flange 101 is provided with an outer sealing ridge 102 protruding to the right. The left edge of the upper panel 1 is bent downward to form a left outer clamping flange 103, and the middle of the left outer clamping flange 103 is provided with an outer limiting groove 104 that can be adapted to the outer sealing ridge 102 of the adjacent color steel sandwich panel on the left. For the left end of the color steel sandwich panel, the outer limiting groove 104 can engage and lock with the outer sealing protrusion 102 of the adjacent color steel sandwich panel on the left, and the inner sealing protrusion 202 can engage and lock with the inner limiting groove 204 of the adjacent color steel sandwich panel on the left; while for the right end of the color steel sandwich panel, the outer sealing protrusion 102 can engage and lock with the outer limiting groove 104 of the adjacent color steel sandwich panel on the right, and the inner limiting groove 204 can engage and lock with the inner sealing protrusion 202 of the adjacent color steel sandwich panel on the right, ultimately achieving the engagement and locking of the left and right ends of the color steel sandwich panel with the left and right sides. The sealing of the intermediate core material 3 at the splicing point of the adjacent color steel sandwich panel prevents water from entering the intermediate core material 3. At the same time, the dovetail groove 403 of the splicing plate 2B can also be used to drive in the structural screws 6 to fix the right end of the color steel sandwich panel to the transverse purlin 7. The structural screws 6 are protected and shielded by the splicing plate 1A of the adjacent color steel sandwich panel on the right side. The outer sealing ridge 102 and the outer limiting groove 104 of the adjacent color steel sandwich panel can not only prevent the structural screws 6 from contacting the outside dew and wind and rain to slow down corrosion, but also play an aesthetic decorative role in avoiding the screw heads being exposed.

[0027] Example 5:

[0028] As attached Figures 1-3 As shown, the difference between this embodiment and embodiments 1-4 is that both ends of the intermediate core material 3 are provided with edge trimming material 301. The edge trimming material 301 is made of non-foamed material, and the embedded part 401 of the splicing end plate 4 is embedded and solidified in the edge trimming material 301. The splicing end plate 4 is bonded and fixed to the corresponding upper panel 1 or lower panel 2. In actual manufacturing, the intermediate core material 3 is made of rock wool core material. The edge trimming material 301 protects and seals the intermediate core material 3. At the same time, the splicing end plate 4 is connected and fixed by the edge trimming material 301 and the upper panel 1 or lower panel 2, resulting in better structural strength.

[0029] Example 6:

[0030] As attached Figures 1-3As shown, the difference between this embodiment and embodiments 1-5 is that the intermediate core material 3 includes any one of rock wool core material, glass wool core material, polyurethane core material, polystyrene board core material, non-foam core material, phenolic core material, paper honeycomb core material, glass magnesium core material, and sulfur oxymagnesium core material.

[0031] In the description of this application, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0032] This utility model is described in the appendix to the specification. Figure 1 For reference purposes, directional terms such as "up," "down," "left," "right," "top," and "bottom" are used only to better and more clearly explain and understand this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] The preferred embodiments of this utility model have been described above, but should not be construed as limiting the claims. This utility model is not limited to the above embodiments, and its specific structure may vary. Any simple modifications, equivalent changes, and substitutions made to the above embodiments based on the technical essence of this utility model are still within the protection scope of this utility model.

Claims

1. A concealed splicing structure for color steel sandwich panels, characterized in that: The system comprises multiple sequentially spliced ​​color steel sandwich panels and connecting tenons. Each color steel sandwich panel includes a top panel, a bottom panel, a core material, and splicing end plates fixed to the left and right ends of the core material. The top panel has wavy, undulating stripes. The core material is filled between the top and bottom panels. The outer surface of the core material has stripes with the same shape and position as the stripes. The core material is bonded and fixed to the top and bottom panels. The splicing end plates include two identical splicing plates, Splicing Plate 1 and Splicing Plate 2. Both Splicing Plate 1 and Splicing Plate 2 include an embedded part and a mating part with a dovetail groove. One end of the embedded part is embedded and fixed in the core material, and the other end of the embedded part is connected to the mating end plate. The components are integrated as one unit. A splicing plate one is fixed to the upper left end of the middle core material, with its dovetail groove opening downwards. A splicing plate two is fixed to the lower right end of the middle core material, with its dovetail groove opening upwards. Structural screws for fixing the color steel sandwich panel and the transverse purlin can be installed in the upward-opening dovetail groove. The mating part of the splicing plate one of the adjacent color steel sandwich panel on the right sits on the upper end of the mating part of the splicing plate two of the color steel sandwich panel. The dovetail groove of the splicing plate one of the adjacent color steel sandwich panel on the right is aligned with the dovetail groove of the splicing plate two of the color steel sandwich panel and is connected with a connecting tenon. The lower end of the connecting tenon and the bottom of the dovetail groove of the splicing plate two form a nail head receiving cavity that can accommodate the end of the structural screw.

2. The concealed splicing structure of color steel sandwich panels according to claim 1, characterized in that: The connecting tenon is a hollow tube column with a bow-tie cross-section. The lower part of the connecting tenon is installed in the dovetail groove of the splicing plate two, and the upper part of the connecting tenon is installed in the dovetail groove of the splicing plate one. The narrower middle part of the connecting tenon is fitted into the opening of the upper and lower dovetail grooves.

3. A concealed splicing structure for color steel sandwich panels according to claim 1 or 2, characterized in that: The splicing end plate has a flanged groove on the side end face of the mating part, and the edge of the upper panel or the lower panel is bent and bonded to be fixed in the flanged groove.

4. The concealed splicing structure of color steel sandwich panels according to claim 3, characterized in that: The left edge of the lower panel is bent upward to form a left inner snap-fit ​​flange, and the middle of the left inner snap-fit ​​flange has an inner sealing ridge protruding to the left. The right edge of the lower panel is bent upward to form a right inner snap-fit ​​flange, and the middle of the right inner snap-fit ​​flange has an inner limiting groove that can be adapted to the inner sealing ridge of the adjacent color steel sandwich panel on the right. The right edge of the upper panel is bent downward to form a right outer snap-fit ​​flange, and the middle of the right outer snap-fit ​​flange has an outer sealing ridge protruding to the right. The left edge of the upper panel is bent downward to form a left outer snap-fit ​​flange, and the middle of the left outer snap-fit ​​flange has an outer limiting groove that can be adapted to the outer sealing ridge of the adjacent color steel sandwich panel on the left.

5. A concealed splicing structure for color steel sandwich panels according to claim 1 or 2, characterized in that: Both ends of the core material are provided with edge trimming material, which is made of non-foamed material. The embedded part of the splicing end plate is embedded and solidified in the edge trimming material, and the splicing end plate is bonded and fixed to the corresponding upper or lower panel.

6. The concealed splicing structure of color steel sandwich panels according to claim 3, characterized in that: Both ends of the core material are provided with edge trimming material, which is made of non-foamed material. The embedded part of the splicing end plate is embedded and solidified in the edge trimming material, and the splicing end plate is bonded and fixed to the corresponding upper or lower panel.

7. The concealed splicing structure of color steel sandwich panels according to claim 4, characterized in that: Both ends of the core material are provided with edge trimming material, which is made of non-foamed material. The embedded part of the splicing end plate is embedded and solidified in the edge trimming material, and the splicing end plate is bonded and fixed to the corresponding upper or lower panel.

8. A concealed splicing structure for color steel sandwich panels according to claim 1, 2, 4, 6, or 7, characterized in that: The intermediate core material includes any one of rock wool core material, glass wool core material, polyurethane core material, polystyrene board core material, non-foam core material, phenolic core material, paper honeycomb core material, glass magnesium core material, and magnesium oxysulfate core material.

9. The concealed splicing structure of color steel sandwich panels according to claim 3, characterized in that: The intermediate core material includes any one of rock wool core material, glass wool core material, polyurethane core material, polystyrene board core material, non-foam core material, phenolic core material, paper honeycomb core material, glass magnesium core material, and magnesium oxysulfate core material.

10. A concealed splicing structure for color steel sandwich panels according to claim 5, characterized in that: The intermediate core material includes any one of rock wool core material, glass wool core material, polyurethane core material, polystyrene board core material, non-foam core material, phenolic core material, paper honeycomb core material, glass magnesium core material, and magnesium oxysulfate core material.

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