A slot-in keel decorative plate and installation method

Abstract

This invention discloses a slotted keel decorative panel, comprising a main keel, a secondary keel, and a decorative panel. The main keel has multiple first wedge-shaped grooves, narrower on the outside and wider on the inside, evenly spaced along its length. The secondary keel has a second wedge-shaped groove extending through its length. The back of the decorative panel has at least two parallel locking strips. The decorative panel is connected to the main and secondary keels via these locking strips. The locking strips are positioned within aligned first and second wedge-shaped grooves. First limiting structures preventing vertical movement of the locking strips are also provided in the first and second wedge-shaped grooves. A second limiting structure preventing horizontal and vertical movement of the decorative panel is provided between the second wedge-shaped groove and the locking strips. This invention allows for quick installation, fixing, and disassembly of the decorative panel without damage. The decorative panel can be repeatedly installed and disassembled without affecting the overall appearance after reinstallation.

Description

Technical Field

[0001] This invention relates to the field of building decoration and renovation technology, specifically to a slotted keel decorative panel and its installation method. Background Technology

[0002] A keel is a building material used to support shapes and fix structures. It serves as the framework and base material for decoration and is widely used in hotels, airport terminals, passenger stations, train stations, theaters, shopping malls, factories, office buildings, renovation of old buildings, interior decoration, ceilings, and other places. There are various structures and installation methods for keels.

[0003] Utility model patent application number 202223225933.X discloses a keel system for prefabricated wall panels, including a main keel comprising a main body and folded edges on both sides of the main body. The folded edges are provided with multiple first locking grooves and multiple hook grooves. Multiple wall connectors, including fixing parts and connecting parts on both sides of the fixing parts, allow the wall connectors to be movably fitted onto the main keel. The connecting parts are provided with second locking grooves that match the first locking grooves, fixing the wall connectors to the main keel via the first and second locking grooves. Multiple decorative panel connectors, including assembly parts and installation parts, have pins fixed to the assembly parts. The pins, in conjunction with the hook grooves, allow the decorative panel connectors to be detachably connected to the side walls of the main keel. This prefabricated wall panel keel system uses a front-entry, side-angled-hole locking hook method, allowing the back of the decorative panel to fit tightly against the outer side of the main keel, solving the problem of the decorative panel being suspended. However, the keel system of this type of prefabricated wall panel has problems such as complicated fixing of decorative panels, low installation efficiency, and difficulty in removing decorative panels after they are fixed.

[0004] Patent application number 202211537425.7 discloses a prefabricated keel structure and its installation method. The prefabricated keel structure includes a clip-on main keel and secondary keels assembled perpendicularly to the clip-on main keel. The clip-on main keel is installed equidistantly laterally on the surface of the building wall, and the secondary keels are installed equidistantly longitudinally on the outside of the clip-on main keel. A top plate is movably fitted onto the outer surface of the pivot pin. A top rod is integrally fixed to both sides of one end of the top plate, and a wall-stopping block is fixedly installed at the other end of the top plate. A peeling warning shell is fixedly installed inside the secondary keel and directly below the top plate by screws. This invention's technical solution can enhance the structural stability between the clip-on main keel and the secondary keel, and can also transfer the installation burden of the wall panel on the keel structure to the building wall, reducing the possibility of deformation of the keel structure. It also has the characteristics of indicating wall panel peeling and preventing wall panel falling. However, the above invention has the problems of low installation efficiency and difficulty in removing the decorative panels after they are fixed.

[0005] Chinese invention patent application number 202211484521.X discloses a modular installation keel, including horizontal keels, vertical keels, steel inserts, connectors, and fasteners. The horizontal and vertical keels are steel keels with cavities. The steel inserts are embedded in and fixed within the cavities at both ends of the horizontal keel. Connectors are installed on the vertical keels, and the steel inserts have first clearance grooves that mate with the connectors. Fasteners overlap and fix the vertical and horizontal keels or the steel inserts. This keel simplifies the on-site installation process and has the advantages of saving time and labor. However, decorative panels installed and fixed on the above-mentioned modular installation keel have the problems of being difficult to remove after installation and leaving the panel incomplete after removal.

[0006] In summary, existing keel decorative panel systems suffer from problems such as cumbersome panel fixing, low installation efficiency, difficulty in removing the panels after fixing, and incomplete removal. Summary of the Invention

[0007] The purpose of this invention is to propose a slotted keel decorative panel and its installation method, which aims to improve the problems of existing keel decorative panel systems, such as cumbersome fixing of decorative panels, low installation efficiency, difficulty in removing decorative panels after fixing, and incomplete removal.

[0008] To achieve the above objectives, according to one aspect of the present invention, a slotted keel decorative panel is provided, comprising a main keel, secondary keels, and a decorative panel. The main keel has a plurality of first wedge-shaped grooves, narrower on the outside and wider on the inside, evenly spaced along its length. The outer end of the first wedge-shaped groove is shorter than the inner end. These first wedge-shaped grooves penetrate the main keel along its width. The secondary keel has a second wedge-shaped groove penetrating its length. The cross-sectional shape and size of the first and second wedge-shaped grooves are identical. Adjacent main keels are connected by a plurality of secondary keels. At that time, the second wedge-shaped pressure strip groove of each secondary keel is aligned with the first wedge-shaped pressure strip groove of each main keel; the back of the decorative panel is provided with at least two parallel retaining strips, and the distance between two adjacent retaining strips is the same as the distance between two adjacent first wedge-shaped pressure strip grooves on the main keel; the decorative panel is connected to the main keel and secondary keel through the retaining strips, and the retaining strips are provided in the aligned first wedge-shaped pressure strip grooves and second wedge-shaped pressure strip grooves. The first wedge-shaped pressure strip grooves and second wedge-shaped pressure strip grooves are also provided with a first limiting structure to prevent the retaining strips from moving up and down, and a second limiting structure to prevent the decorative panel from moving forward, backward, left and right is provided between the second wedge-shaped pressure strip groove and the retaining strips.

[0009] Furthermore, the cross-sectional shape of the first wedge-shaped groove and the second wedge-shaped groove are both right trapezoids, with the inner end being the long base of the right trapezoid, the outer end being the short base of the right trapezoid, and the top being the hypotenuse of the right trapezoid.

[0010] Furthermore, the first limiting structure is a long strip-shaped wedge-shaped pressure strip, which passes through the aligned first wedge-shaped pressure strip groove and the second wedge-shaped pressure strip groove, and the wedge-shaped pressure strip presses the retaining strip up and down.

[0011] Furthermore, the wedge-shaped pressure strip includes a rigid structural part that cannot be compressed and deformed and a flexible structural part that can be deformed and compressed. The length of the rigid structural part is the same as the length of the wedge-shaped pressure strip, and the flexible structural part is disposed on the upper end face or the lower end face of the rigid structural part.

[0012] Furthermore, the rigid structural part is elongated, and its cross-sectional shape is a wedge that matches the cross-sectional shape of the first wedge-shaped pressure strip groove and the second wedge-shaped pressure strip groove. Its overall thickness is the overall thickness of the first wedge-shaped pressure strip groove minus the thickness of the retaining strip. A receiving groove is provided on the upper inclined surface or the lower flat surface of the rigid structural part, and the elastic structural part is disposed in the receiving groove. When the wedge-shaped pressure strip is inserted into the first wedge-shaped pressure strip groove and the second wedge-shaped pressure strip groove, the elastic structural part is compressed to generate a clamping force.

[0013] Furthermore, the receiving groove is a through groove that penetrates the rigid structure part along its length or a long strip-shaped groove that is spaced apart along the length direction of the rigid structure part, and the length direction of the long strip-shaped groove is the same as the length direction of the rigid structure part.

[0014] Furthermore, the second limiting structure includes multiple limiting slots disposed on the lower end groove surface of the second wedge-shaped pressure strip groove and multiple limiting blocks disposed on the lower end surface of the card strip. The number of limiting blocks and limiting slots are the same, and their positions correspond one-to-one. The shape and size of the limiting blocks and limiting slots are the same. The height of the outer ends of the first wedge-shaped pressure strip groove and the second wedge-shaped pressure strip groove is greater than the sum of the thickness of the card strip and the thickness of the limiting blocks.

[0015] Furthermore, the second limiting structure includes a plurality of limiting protrusions disposed on the lower end groove surface of the second wedge-shaped pressure strip groove and a plurality of limiting holes disposed on the card strip. The number of limiting protrusions and limiting holes are the same, and their positions correspond one-to-one. The shape and size of the limiting protrusions and limiting holes are the same. The height of the outer port of the first wedge-shaped pressure strip groove and the second wedge-shaped pressure strip groove is greater than the sum of the thickness of the card strip and the thickness of the limiting protrusions.

[0016] Furthermore, the main keel is provided with mounting holes extending along its thickness direction, and multiple mounting holes are provided along the length direction of the main keel. The mounting holes include small-diameter holes and large-diameter holes with a common central axis, and the large-diameter holes are located on the outer end face of the main keel. The main keel is provided with connecting holes extending along its width direction, and multiple connecting holes are provided along the length direction of the main keel. The secondary keel is provided with threaded holes. The main keel and the secondary keel are connected by bolts, and the threaded shank of the bolt passes through the connecting hole of the main keel and is screwed into the threaded hole of the secondary keel.

[0017] According to a second aspect of the present invention, a method for installing a slot-type keel decorative panel is provided, comprising the following steps:

[0018] S100. Laying out and positioning: Use a measuring tape and laser line projector to measure the position of the keel, and use the chalk line method to position the keel;

[0019] S200, Keel Installation: After the layout and positioning are completed, the main keel is positioned above the embedded plate by bolt connection, and the secondary keel is connected to the main keel by bolt connection;

[0020] S300, Decorative panel installation: Insert the clips of the decorative panel into the first wedge-shaped pressure strip groove and the second wedge-shaped pressure strip groove, and limit the decorative panel in the front, back and left and right directions through the second limiting structure;

[0021] S400, Decorative panel fixing: After the same row of decorative panels is installed, the first limiting structure is installed into the first wedge-shaped pressure strip groove and the second wedge-shaped pressure strip groove to prevent the decorative panels from moving up and down;

[0022] S500, End Sealing: Seal the first wedge-shaped grooves at both ends to complete the installation of one row of decorative panels and begin the installation of the next row of decorative panels.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. The fixing method of the decorative panel of the present invention is simple and quick, and the decorative panel can be installed, fixed and disassembled quickly. Moreover, if it is necessary to remove and reinstall due to changes in drawings or installation errors, the decorative panel will not be damaged during disassembly and reassembly. The decorative panel can be repeatedly disassembled and reassembled, avoiding material loss and not affecting the overall appearance after secondary installation.

[0025] 2. The present invention uses a fixing method of slots, blocks and wedge-shaped pressure strips, which can effectively prevent the decorative panel from shifting in the vertical and horizontal directions after installation. The fixing method is safe and reliable.

[0026] 3. The present invention adopts a multi-layered design with at least four slots and blocks on a single decorative panel, which provides a reaction time for the decorative panel during the detachment process, effectively improving the safety of the present invention. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the slotted keel decorative panel in an embodiment of the present invention;

[0028] Figure 2 This is a schematic diagram of the connection between the main keel and the secondary keel in an embodiment of the present invention;

[0029] Figure 3 This is a schematic diagram of the main keel structure in an embodiment of the present invention;

[0030] Figure 4 This is a schematic diagram of the secondary keel structure in an embodiment of the present invention;

[0031] Figure 5 This is a schematic diagram of the structure of the decorative panel in an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of a wedge-shaped pressure strip in one embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram of another structure of the wedge-shaped pressure strip in an embodiment of the present invention;

[0034] Figure 8 This is a flowchart illustrating the method for installing a slotted keel decorative panel in an embodiment of the present invention.

[0035] Reference numerals: 1. Main keel; 11. First wedge-shaped pressure strip groove; 2. Secondary keel; 21. Second wedge-shaped pressure strip groove; 22. Limiting slot; 3. Decorative panel; 31. Locking strip; 32. Limiting block; 4. Wedge-shaped pressure strip; 41. Rigid structural part; 42. Elastic structural part. Detailed Implementation

[0036] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0037] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details:

[0038] Example 1

[0039] This embodiment provides a slotted keel decorative panel, such as... Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the system includes a main keel 1, secondary keels 2, decorative panels 3, and wedge-shaped molding strips 4. Multiple first wedge-shaped molding strip grooves 11, narrower on the outside and wider on the inside, are equidistantly arranged along the length of the main keel 1, penetrating the main keel 1 along its width. Secondary keels 2 are provided with second wedge-shaped molding strip grooves 21 penetrating along their length. The cross-sectional shape and size of the first and second wedge-shaped molding strip grooves 11 and 21 are identical. In this embodiment, the cross-sectional shape of both the first and second wedge-shaped molding strip grooves 11 and 21 is a right-angled trapezoid, with the inner end being the long base of the right-angled trapezoid, the outer end being the short base, and the top being the hypotenuse. Adjacent main keels 1 are connected by multiple secondary keels 2. When the main keel 1 and secondary keel 2 are connected, the second wedge-shaped molding strip grooves 21 of each secondary keel 2 are aligned with the first wedge-shaped molding strip grooves 11 of each main keel 1. The main keel 1 has mounting holes extending along its thickness. Multiple mounting holes are provided along the length of the main keel 1, including small-diameter holes and large-diameter holes sharing a central axis. The large-diameter hole is located on the outer end face of the main keel 1. Expansion bolts are installed on the wall, with the shank of the bolt passing through the mounting hole in the main keel 1 and completely positioned within it. Nuts are installed on the shank of the expansion bolts, with the nuts completely positioned within the large-diameter hole of the mounting hole, thus not affecting the installation of the decorative panel 3. The main keel 1 also has connecting holes extending along its width. Multiple connecting holes are provided along the length of the main keel 1, the number of which is the same as the number of secondary keels 2 connected to the main keel 1. The secondary keels 2 have threaded holes. The main keel 1 and secondary keels 2 are connected by bolts, with the threaded shank of the bolt passing through the connecting hole in the main keel 1 and screwed into the threaded hole in the secondary keel 2.

[0040] like Figures 1-5As shown, the back of the decorative panel 3 is provided with two parallel retaining strips 31. The distance between the two retaining strips 31 is the same as the distance between two adjacent first wedge-shaped pressure strip grooves 11 on the main keel 1. Each retaining strip 31 has two limiting blocks 32 on its lower end surface. The lower end surface of the second wedge-shaped pressure strip groove 21 is provided with two limiting slots 22, and the positions of the two limiting slots 22 correspond one-to-one with the positions of the two limiting blocks 32. The number of limiting slots 22 and limiting blocks 32 is not limited to two; it can also be three, four, or more. The limiting blocks 32 and limiting slots 22 have the same shape and size. In this embodiment, the limiting blocks 32 and limiting slots 22 are both rectangular parallelepipeds. In addition, they can both be cylindrical, elliptical cylindrical, or regular hexagonal prisms, etc. Decorative panel 3 is connected to main keel 1 and secondary keel 2 via retaining strip 31 and limiting blocks 32. When installing decorative panel 3, retaining strip 31 is positioned in aligned first wedge-shaped pressure strip groove 11 and second wedge-shaped pressure strip groove 21, and at this time, limiting blocks 32 are correspondingly located in limiting slots 22. The height of the outer ends of the first wedge-shaped pressure strip groove 11 and the second wedge-shaped pressure strip groove 21 is greater than the sum of the thickness of retaining strip 31 and the thickness of limiting blocks 32; otherwise, decorative panel 3 cannot be installed on main keel 1 and secondary keel 2. Limiting blocks 32 and limiting slots 22 together form a limiting structure that restricts the forward, backward, left, and right movement of retaining strip 31. Besides the limiting block 32 and the limiting groove 22, this type of limiting structure can also have other structural forms. For example, the limiting structure includes multiple limiting protrusions on the lower end groove surface of the second wedge-shaped pressure strip groove 21 and multiple limiting holes on the locking strip 31. The number of limiting protrusions and limiting holes are the same, their positions correspond one-to-one, and their shapes and sizes are identical. In this case, the height of the outer ends of the first wedge-shaped pressure strip groove 11 and the second wedge-shaped pressure strip groove 21 is greater than the sum of the thickness of the locking strip 31 and the thickness of the limiting protrusions.

[0041] like Figure 6 and Figure 7 As shown, the wedge-shaped pressure strip 4 is elongated and is installed in the aligned first wedge-shaped pressure strip groove 11 and second wedge-shaped pressure strip groove 21 to press the decorative panel 3 vertically and prevent it from moving up and down. The wedge-shaped pressure strip 4 includes an incompressible rigid structural part 41 and a deformable elastic structural part 42. The rigid structural part 41 can be made of materials such as rigid plastic, stainless steel, or aluminum alloy, while the elastic structural part 42 can be made of rubber. The length of the rigid structural part 41 is the same as the length of the entire wedge-shaped pressure strip 4, and the elastic structural part 42 is disposed on the upper or lower end face of the rigid structural part 41. The wedge-shaped pressure strip 4 can have various structural forms, such as... Figure 6 and Figure 7 These are two different structural forms. For example... Figure 6As shown, the rigid structural part 41 is elongated, and its cross-sectional shape is a wedge shape that matches the cross-sectional shape of the first wedge-shaped pressure strip groove 11 and the second wedge-shaped pressure strip groove 21. Its overall thickness is the overall thickness of the first wedge-shaped pressure strip groove 11 minus the thickness of the retaining strip 31. Two through grooves extending along the length of the rigid structural part 41 are provided on the upper inclined surface of the rigid structural part 41, and each through groove contains an elongated elastic structural part 42, i.e., an elastic rubber strip. Figure 7 As shown, the rigid structural part 41 is elongated, and its cross-sectional shape is a wedge shape that matches the cross-sectional shape of the first wedge-shaped pressure strip groove 11 and the second wedge-shaped pressure strip groove 21. Its overall thickness is the overall thickness of the first wedge-shaped pressure strip groove 11 minus the thickness of the retaining strip 31. A rectangular groove is provided at intervals on the lower end plane of the rigid structural part 41, and the length direction of this rectangular groove is the same as the length direction of the rigid structural part 41. Each rectangular groove contains a rigid structural part 41, i.e., a rectangular rubber block. When the wedge-shaped pressure strip 4 is inserted into the first wedge-shaped pressure strip groove 11 and the second wedge-shaped pressure strip groove 21, the elastic structural part 42 is compressed, generating a clamping force.

[0042] Furthermore, the end of the retaining strip 31 furthest from the decorative panel 3 has an upwardly bent edge, making the retaining strip 31 L-shaped. This eliminates the need for structures such as the limiting retaining block 32, the limiting retaining groove 22, the limiting protrusion, and the limiting retaining hole. When the wedge-shaped pressure strip 4 is inserted into the first wedge-shaped pressure strip groove 11 and the second wedge-shaped pressure strip groove 21, it is located between the bent edge of the retaining strip 31 and the decorative panel 3. Through the special shapes of the wedge-shaped pressure strip 4, the first wedge-shaped pressure strip groove 11, and the second wedge-shaped pressure strip groove 21, the vertical and horizontal directions of the decorative panel 3 can be limited. Through the pressing action of the wedge-shaped pressure strip 4, the horizontal direction of the decorative panel 3 can also be limited to a certain extent.

[0043] Example 2

[0044] This embodiment provides an installation method for a slotted keel decorative panel, used to install the slotted keel decorative panel provided in Embodiment 1. Two limiting slots 22 are provided on the lower end surface of the second wedge-shaped pressure strip groove 21, and two limiting blocks 32 are provided on the lower end surface of each clip 31. The positions of the two limiting slots 22 and the two limiting blocks 32 correspond one-to-one. For example... Figure 8 As shown, it includes the following steps:

[0045] S100. Laying out and positioning: Use a measuring tape and laser line projector to measure the position of the keel, and use the chalk line method to position the keel.

[0046] S200, Keel Installation: After the layout and positioning are completed, the main keel 1 is positioned above the embedded plate by bolt connection. The secondary keel 2 is connected to the main keel 1 by bolt connection to form a keel skeleton system composed of the main keel 1 and the secondary keel 2 connected to each other.

[0047] S300, Decorative panel installation: Place the clip 31 of the decorative panel 3 into the first wedge-shaped pressure strip groove 11 and the second wedge-shaped pressure strip groove 21, and at the same time place the limiting clips 32 one by one into the limiting clip grooves 22, so as to realize the limiting of the decorative panel 3 in the front-back direction and the left-right direction.

[0048] S400, Fixing the decorative panel: After the same row of decorative panels 3 is installed, insert the wedge-shaped pressure strip 4 into the first wedge-shaped pressure strip groove 11 and the second wedge-shaped pressure strip groove 21. At this time, the elastic structure part 42 is compressed to generate a pressing force. The wedge-shaped pressure strip 4 presses the decorative panel 3 to prevent the decorative panel 3 from moving in the vertical direction. In this way, the fixing of the decorative panel 3 is completed.

[0049] S500, End sealing: Seal the first wedge-shaped groove 11 at both ends to complete the installation of one row of decorative panels 3, and begin the installation of the next row of decorative panels 3.

[0050] The working principle of this invention: The main keel 1 and the wall, as well as the main keel 1 and the secondary keel 2, are all connected by threads. Installation and disassembly will not damage the main keel 1 or the secondary keel 2. When installing decorative panels 3 on the keel frame system composed of the main keel 1 and the secondary keel 2, a snap-fit ​​structure is used, which not only makes the installation and disassembly of decorative panels 3 convenient but also prevents damage to the decorative panels 3 during installation and disassembly.

[0051] In summary, the fixing method of the decorative panel 3 of this invention is simple and quick, allowing for rapid installation, fixing, and disassembly. Furthermore, if disassembly and reinstallation are necessary due to drawing changes or installation errors, the decorative panel 3 will not be damaged. It can be repeatedly disassembled and reused, avoiding material loss and maintaining the overall appearance after reinstallation. This invention employs a fixing method using slots, blocks, and wedge-shaped pressure strips, or a method using limiting slots, limiting blocks, and wedge-shaped pressure strips. This effectively prevents vertical and horizontal displacement of the decorative panel 3 after installation, ensuring a safe and reliable fixing method. Moreover, the multi-layered design, with at least four slots and blocks per decorative panel, provides a reaction time during the detachment process, effectively improving the safety of this invention.

[0052] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A slotted keel decorative panel, comprising a main keel (1), a secondary keel (2), and a decorative panel (3), characterized in that, The main keel (1) has multiple first wedge-shaped grooves (11) that are narrower on the outside and wider on the inside, evenly spaced along its length. The secondary keel (2) has a second wedge-shaped groove (21) that runs through its length. The first wedge-shaped grooves (11) and the second wedge-shaped grooves (21) have the same cross-sectional shape and size. The back of the decorative panel (3) has at least two parallel retaining strips (31). The distance between two adjacent retaining strips (31) is the same as the distance between two adjacent first wedge-shaped grooves (11) on the main keel (1). The decorative panel (3) is connected to the main keel (1) and the secondary keel (2) by the retaining strips (31). The locking strip (31) is disposed in the aligned first wedge-shaped pressure strip groove (11) and second wedge-shaped pressure strip groove (21). The first wedge-shaped pressure strip groove (11) and second wedge-shaped pressure strip groove (21) are also provided with a first limiting structure to prevent the locking strip (31) from moving up and down. The second wedge-shaped pressure strip groove (21) and the locking strip (31) are provided with a second limiting structure to prevent the decorative panel (3) from moving forward, backward, left and right. The first limiting structure is a long strip wedge-shaped pressure strip (4). The wedge-shaped pressure strip (4) passes through the aligned first wedge-shaped pressure strip groove (11) and second wedge-shaped pressure strip groove (21). The wedge-shaped pressure strip (4) presses the locking strip (31) up and down. The second limiting structure includes multiple limiting slots (22) disposed on the lower end groove surface of the second wedge-shaped pressure strip groove (21) and multiple limiting blocks (32) disposed on the lower end surface of the card strip (31). The number of limiting blocks (32) is the same as the number of limiting slots (22), and their positions correspond one-to-one. The shape and size of the limiting blocks (32) are the same as those of the limiting slots (22). The height of the outer port of the first wedge-shaped pressure strip groove (11) and the second wedge-shaped pressure strip groove (21) is greater than the sum of the thickness of the card strip (31) and the thickness of the limiting blocks (32). or The second limiting structure includes multiple limiting protrusions on the lower end groove surface of the second wedge-shaped pressure strip groove (21) and multiple limiting holes on the card strip (31). The number of limiting protrusions and limiting holes are the same, and their positions correspond one-to-one. The shape and size of the limiting protrusions and limiting holes are the same. The height of the outer port of the first wedge-shaped pressure strip groove (11) and the second wedge-shaped pressure strip groove (21) is greater than the sum of the thickness of the card strip (31) and the thickness of the limiting protrusions.

2. The slotted keel decorative panel according to claim 1, characterized in that, The first wedge-shaped groove (11) and the second wedge-shaped groove (21) are both right trapezoids in cross-sectional shape, with the inner end being the long base of the right trapezoid, the outer end being the short base of the right trapezoid, and the upper side being the hypotenuse of the right trapezoid.

3. A slotted keel decorative panel according to claim 1, characterized in that, The wedge-shaped pressure strip (4) includes an incompressible rigid structural part (41) and a deformable elastic structural part (42). The length of the rigid structural part (41) is the same as the length of the wedge-shaped pressure strip (4). The elastic structural part (42) is disposed on the upper or lower end surface of the rigid structural part (41).

4. A slotted keel decorative panel according to claim 3, characterized in that, The rigid structural part (41) is long and narrow. A receiving groove is provided on the upper inclined surface or the lower flat surface of the rigid structural part (41). The elastic structural part (42) is disposed in the receiving groove. When the wedge-shaped pressure strip (4) is inserted into the first wedge-shaped pressure strip groove (11) and the second wedge-shaped pressure strip groove (21), the elastic structural part (42) is compressed and a clamping force is generated.

5. A slotted keel decorative panel according to claim 4, characterized in that, The receiving groove is a through groove that penetrates the rigid structure part (41) along the length direction or a long strip-shaped groove that is spaced apart along the length direction of the rigid structure part (41), and the length direction of the long strip-shaped groove is the same as the length direction of the rigid structure part (41).

6. A slotted keel decorative panel according to claim 1, characterized in that, The main keel (1) is provided with mounting holes that penetrate along its thickness direction. Multiple mounting holes are provided along the length direction of the main keel (1). The mounting holes include small-diameter holes and large-diameter holes with a common central axis. The large-diameter holes are located on the outer end face of the main keel (1). The main keel (1) is provided with connecting holes that penetrate along its width direction. Multiple connecting holes are provided along the length direction of the main keel (1). The secondary keel (2) is provided with threaded holes. The main keel (1) and the secondary keel (2) are connected by bolts, and the threaded rod of the bolt passes through the connecting hole of the main keel (1) and is screwed into the threaded hole of the secondary keel (2).

7. A method for installing a slotted keel decorative panel, used for installing a slotted keel decorative panel as described in any one of claims 1-6, characterized in that, Includes the following steps: S100. Laying out and positioning: Use a measuring tape and laser line projector to measure the position of the keel, and use the chalk line method to position the keel; S200, Keel Installation: After the layout and positioning are completed, the main keel (1) is positioned above the embedded plate by bolt connection, and the secondary keel (2) is connected to the main keel (1) by bolt connection; S300, Installation of decorative panel: Place the clip (31) of the decorative panel (3) into the first wedge-shaped pressure strip groove (11) and the second wedge-shaped pressure strip groove (21), and limit the decorative panel (3) in the front, back and left and right directions through the second limiting structure; S400, Fixing the decorative panel: After the same row of decorative panels (3) is installed, the first limiting structure is installed into the first wedge-shaped pressure strip groove (11) and the second wedge-shaped pressure strip groove (21) to prevent the decorative panel (3) from moving up and down; S500, End sealing: Seal the first wedge-shaped groove (11) at both ends to complete the installation of one row of decorative panels (3) and begin the installation of the next row of decorative panels (3).

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