A ceiling device for indoor decoration and installation method

Abstract

The present invention discloses a ceiling device for indoor decoration and an installation method, wherein the ceiling device comprises at least one suspended top layer, wherein the suspended top layer comprises a main keel, a plate body and a connecting portion, wherein the main keel is arranged horizontally and fixedly connected to the top wall, and a plurality of expansion cavities are arranged on the main keel at intervals; the plate body is horizontally laid below the main keel, and the plate body comprises a back plate and a front plate; the bottom end of the connecting portion is connected to the back plate of the plate body by a buckle, and the top end of the connecting portion is connected to the expansion cavity on the main keel by a buckle, thereby fixing the plate body on the main keel. The present invention solves the technical problem that a large plate and a keel cannot be connected reliably, quickly and in an adjustable position in the prior art, and achieves the beneficial effects of greatly reducing the difficulty of installing a large plate, improving the installation efficiency, and achieving reliable connection and adjustable position.

Description

Technical Field

[0001] The invention relates to the technical field of building decoration, and in particular to a ceiling device for indoor decoration and an installation method thereof. Background Art

[0002] With the continuous change of home decoration concepts, ceilings are gradually being recognized and accepted by the public and have become one of the components of modern home decoration. In recent years, the "big board trend" has quietly emerged in the home furnishing industry. Now this trend has spread to the integrated ceiling industry, and big board ceilings are becoming more and more popular. Big boards mainly refer to aluminum honeycomb composite panels. Compared with traditional aluminum ceilings, the biggest change is that the single-piece size is large, the overall performance is good, and it has obvious aesthetic advantages.

[0003] In the existing large-panel ceiling installation structure, the four sides of the large panel are fixedly connected to the keel, and the keel is connected to the ceiling system of the top wall, so as to realize the installation of the large panel. The existing large-panel installation structure is mainly divided into a keel frame structure and an I-shaped (or inverted T-shaped keel) board structure, and the only difference is whether the keel is connected to the large panel first or the ceiling system of the top wall first.

[0004] However, the installation structure of the keel fixed to the four sides of each honeycomb panel has obvious defects and hinders the further promotion of "large panels", as follows: 1. After the large panels are installed, the keel structure can be seen between each panel, which affects the appearance; 2. The keel profile is straight due to the processing method, while the large panels can be cut into straight lines, circles or curves, which limits the expressiveness of the large panels; 3. In the case of a two-layer ceiling, the installation structure of the keel fixed to the four sides of the honeycomb panel is also difficult to handle when the relative height or relative position between the two layers of the ceiling needs to be adjusted, and it is difficult to install a multi-layer ceiling; 4. The material cost and installation efficiency of the keel are low, especially when it involves more than two layers of ceilings. If the keel is fixed to the back aluminum plate of each honeycomb panel, and then connected to the ceiling system of the top wall through the keel, the above installation problems can be well solved.

[0005] In the process of implementing the technical solution in the embodiments of the present application, the inventors of the present application found that the above technology has at least the following technical problems:

[0006] In the prior art, due to the limitation of cost factors, the thickness of the large panels is very thin (between 0.2 mm and 0.6 mm), and conventional screws are used to fix the keel and the large panels, which cannot produce a reliable connection. The keel and the large panels are fixed by gluing, but the curing period of the glue is usually greater than 12 to 24 hours, which cannot achieve quick installation and position adjustment, thereby making it impossible to achieve a reliable, fast and adjustable connection between the large panels and the keel. Summary of the invention

[0007] The embodiment of the present application solves the technical problem in the prior art that large panels and keels cannot be connected reliably, quickly and in an adjustable position by providing a ceiling device and an installation method for indoor decoration.

[0008] In order to solve the above problems, in a first aspect, an embodiment of the present application provides a ceiling device for indoor decoration, wherein the ceiling device comprises at least one suspended top layer, and the suspended top layer comprises:

[0009] A main keel, wherein the main keel is arranged horizontally and fixedly connected to the top wall, and a plurality of expansion cavities are arranged at intervals on the main keel;

[0010] A plate body, wherein the plate body is horizontally laid below the main keel, and the plate body comprises a back plate and a front plate;

[0011] The connecting part, the bottom end of which is connected to the back plate of the plate body by a buckle, and the top end of which is connected to the expansion cavity on the main keel by a buckle, thereby fixing the plate body on the main keel.

[0012] Furthermore, a plurality of clamping parts are provided on the main keel at intervals, and the clamping parts include:

[0013] A clamping piece, wherein the clamping piece is fixed on the main keel, and the bottom of the clamping piece has a first clamping slot open downward;

[0014] A clamping keel is provided with a first clamping head which is clamped into the first clamping slot on the top of the clamping keel, and a hanging ear which can be inserted into the first clamping slot and extends to both sides of the first clamping slot to avoid slipping is provided on the top of the first clamping head; and the expansion cavity is provided at the bottom of the clamping keel.

[0015] Furthermore, the connecting portion includes a connecting keel and a connecting assembly, the upper end of the connecting keel is connected to the expansion cavity on the main keel, and the back plate of the plate body is connected to the lower end of the connecting keel through the connecting assembly.

[0016] Further, the connecting keel includes a back-mounted keel for connecting the expansion cavity and the back plate of the plate body, and the back-mounted keel includes:

[0017] A first plug-in unit, a top end of which is connected to a first expansion plug, and the first expansion plug vertically extends upward to be inserted into the expansion plug cavity;

[0018] The first buckle slot is used for buckling on the connecting component, one side of the top of the first buckle slot is connected to the bottom end of the first plug-in, and the notch of the first buckle slot is open downward.

[0019] Furthermore, a first connection port for connecting with the connecting assembly through a locking member is provided on the bottom of the first buckle slot of the back-mounted keel, and a mounting hole for connecting with the connecting assembly is provided on the back plate of the board body;

[0020] The connection assembly comprises:

[0021] An expansion tube, the expansion tube comprising a tube body, a second connection port for aligning with and penetrating the first connection port is provided on the top surface of the tube body; the bottom of the tube body extends into the mounting hole, and a buckle position is provided on the side surface of the bottom of the tube body and extends laterally into the side wall of the mounting hole to press the back plate upward;

[0022] A pin body, wherein the pin body is clamped in the tube body, and the bottom of the pin body presses the expansion tube and presses the buckle position against the back plate, and the pin body is also provided with a third connection port for aligning with and penetrating the second connection port;

[0023] A locking member, wherein the locking member passes through the first connection port, the second connection port and extends into the third connection port, and locks and fixes the connecting keel, the expansion tube and the pin body, and the back plate of the plate body is fixed between the buckle position of the expansion tube and the connecting keel.

[0024] Furthermore, the expansion tube includes at least two tube bodies, and two adjacent tube bodies are connected by a connector, so as to prevent the expansion tube from rotating when the locking member is twisted.

[0025] Further, the pin body includes a top section and a bottom section;

[0026] The cross-sectional shape of the top section is a polygon, so as to prevent the pin body from rotating when the locking member is twisted;

[0027] The cross-sectional shape of the bottom section is circular, and the outer diameter of the bottom section is larger than the inner diameter of the bottom of the expansion tube body, so as to press the buckle at the bottom of the expansion tube body outward and press the buckle into the mounting hole on the back plate of the plate body.

[0028] Furthermore, the connecting keel also includes a back-mounted seam keel used at the joint of two adjacent plates, and the back-mounted seam keel includes:

[0029] A second plug-in unit, a top end of which is connected to a second expansion plug, and the second expansion plug vertically extends upward to be inserted into the expansion cavity;

[0030] A second buckle slot, used for buckling on the connecting assembly, a top side of the second buckle slot is connected to the bottom end of the second plug-in unit, and a notch of the second buckle slot is open downward;

[0031] A pressing member, which is arranged on one side of the second buckle groove and extends horizontally, and is located below the second expansion plug;

[0032] The specific connection structure of the back-mounted seam keel for splicing two adjacent plate bodies is as follows: the two back-mounted seam keels are symmetrically arranged, and the second buckle grooves of the two back-mounted seam keels are respectively connected to the two adjacent plate bodies through a connecting component; the second expansion heads of the two back-mounted seam keels are jointly inserted into the same expansion insertion cavity located above; the clamping parts of the two back-mounted seam keels are adjacent and press downward against the back plate of the plate body.

[0033] Furthermore, in the two upper and lower adjacent suspended top layers, the main keel of the suspended top layer located at the lower side is fixedly connected to the main keel of the suspended top layer located at the upper side, and a vertical plate is provided between the upper plate body and the lower plate body, and the top end of the vertical plate is connected to the upper plate body through the back-mounted seam keel and the vertical plate keel buckle;

[0034] A horizontally extending groove is formed on one side of the pressing member, and a notch of the groove is open outwards;

[0035] The vertical plate keel comprises:

[0036] A third buckle slot, the slot of which is open downward to clamp the top of the vertical plate, one side of the third buckle slot is provided with a support plate extending horizontally to the bottom of the adjacent plate body to support the adjacent plate body upward, and the other side of the third buckle slot is provided with a fifth connection port;

[0037] A third plug-in, the top of which is connected to a third expansion head, the third expansion head vertically extending upward to be inserted into the expansion insertion cavity, the bottom of the third plug-in connected to the top of the third buckle groove, the third plug-in provided with a sixth connection port for aligning with and penetrating the notch of the groove;

[0038] The top of the vertical board is connected to the board body located above by the back-mounted seam keel and the vertical board keel buckle. The specific connection structure is:

[0039] The second expansion head of the back-mounted seam keel is inserted into the expansion insertion cavity located above, and the second buckle groove of the back-mounted seam keel is connected to the plate body located above through the connecting assembly;

[0040] The third buckle groove of the vertical plate keel is buckled on the top of the vertical plate, and the second locking piece passes through the fifth connecting port and screws the third buckle groove and the vertical plate together; the third expansion head of the vertical plate keel is inserted into the expansion insertion cavity where the second expansion plug is matched, and the third locking piece passes through the sixth connecting port and extends into the groove to screw the vertical plate keel and the back-mounted seam keel together, and the support plate supports the plate body located above upward.

[0041] In a second aspect, the embodiment of the present application further provides a method for installing a ceiling device for indoor decoration, comprising the following steps:

[0042] Drilling the mounting hole on the back plate of the plate body;

[0043] Put the pin bodies into the mounting holes one by one;

[0044] Pressing the tube bodies of the expansion tubes into the mounting holes one by one;

[0045] Insert the first buckle groove of the back-mounted keel or the second buckle groove of the back-mounted splicing keel into the corresponding tube body of the expansion tube one by one, and use the back-mounted keel in the middle of the plate body, and use the back-mounted splicing keel on the side where the plate body is connected to the vertical plate and at the splicing with the adjacent plate body.

[0046] Insert the locking piece into the back-mounted keel and the corresponding expansion tube and pin body, and insert the locking piece into the back-mounted joint keel and the corresponding expansion tube and pin body; tighten the locking piece, the pin body moves upward and presses against the expansion tube, so that the back plate of the plate body is clamped between the buckle position outside the expansion tube and the back-mounted keel or the back-mounted joint keel, so that the plate body is connected to the back-mounted keel or the back-mounted joint keel;

[0047] The first plug-in unit of the back-mounted keel and the second plug-in unit of the back-mounted seam keel are respectively inserted into the matching expansion insertion cavities.

[0048] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0049] The interior decoration suspended ceiling provided in this embodiment is completely different from the existing mainstream installation structure. It adopts the method of fixing the back-mounted keel or the back-mounted spliced ​​keel to the back plate of the large panel, and realizes the snap connection through the innovative design of the unique structure of the expansion tube and the pin body, so that the back-mounted keel and the thinner back plate of the large panel can also be quickly and reliably connected. Relying on the fixing method of the back-mounted keel, the back-mounted spliced ​​keel and the back plate of the large panel, a new large panel installation structure and installation method are developed, which can give full play to the expressiveness of the large panel, greatly reduce the installation difficulty of the large panel, and improve the installation efficiency.

[0050] Therefore, the interior decorative ceiling described in the above-mentioned embodiment of the present application solves the technical problem in the prior art that large panels and keels cannot be connected reliably, quickly and in an adjustable position, and achieves the beneficial effects of greatly reducing the difficulty of installing large panels, improving installation efficiency, and ensuring reliable and adjustable connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 This is a structural schematic diagram of a ceiling for indoor decoration provided in Example 1 of the present application;

[0052] Figure 2 This is a schematic diagram of the structure of a large panel for indoor decorative ceiling provided in Example 1 of the present application;

[0053] Figure 3 It is a side view of a large panel for indoor decorative ceiling provided in Example 1 of the present application;

[0054] Figure 4 yes Figure 1 A schematic diagram of the structure enlargement in the middle;

[0055] Figure 5 It is a structural schematic diagram of a back-mounted keel for indoor decorative ceiling provided in Example 1 of the present application.

[0056] Figure 6 This is a schematic diagram of the structure of an expansion tube for indoor decorative ceiling provided in Example 1 of the present application;

[0057] Figure 7 This is a schematic diagram of the structure of a pin body for a ceiling used for indoor decoration provided in Example 1 of the present application;

[0058] Figure 8 yes Figure 1 A magnified schematic diagram of the structure at B in the middle;

[0059] Fig. 9 This is a structural exploded diagram of a connection portion of a ceiling for indoor decoration provided in Example 2 of the present application;

[0060] Fig.10 This is a three-dimensional diagram of a connection portion of a ceiling for indoor decoration provided in Example 2 of the present application;

[0061] Fig.11 This is a structural exploded diagram of a back-mounted joint keel for indoor decorative ceiling provided in Example 2 of the present application;

[0062] Fig.12 yes Figure 1 A magnified view of the structure at C in the middle;

[0063] Fig.13 yes Figure 1 A magnified view of the structure at D in the middle;

[0064] Fig.14 This is a schematic diagram of the structure of an elastic edge trimming strip decorative cover for an indoor decorative ceiling provided in the fourth embodiment of the present application;

[0065] Fig.15 yes Figure 1 Enlarged view of the structure at E in the middle;

[0066] Fig.16 This is a schematic diagram of the structure of the large plate in which the mounting holes are drilled in the fifth embodiment of the present application;

[0067] Fig.17 This is a schematic diagram of the large plate opening structure in Example 5 of the present application;

[0068] Fig.18 This is a schematic diagram of the state where the pin body is placed in the mounting hole in the fifth embodiment of the present application;

[0069] Fig.19 It is a schematic diagram of a state in which the tube body of the expansion tube is pressed into the installation hole in the fifth embodiment of the present application;

[0070] Fig. 20 This is a schematic diagram of a state in which the first buckle groove of the back-mounted keel is inserted into the corresponding expansion tube in the fifth embodiment of the present application;

[0071] Fig.21 It is a schematic diagram of the state in which the second buckle groove of the back-mounted seam keel is inserted into the corresponding expansion tube in the fifth embodiment of the present application;

[0072] Fig. 22 This is a schematic diagram of the state in which the large panel and the back-mounted keel are connected in the fifth embodiment of the present application;

[0073] Fig.23 It is a schematic diagram of the state of connection between the large panel and the back-mounted seam keel in Example 5 of the present application. DETAILED DESCRIPTION

[0074] The embodiment of the present application solves the technical problem in the prior art that large panels and keels cannot be connected reliably, quickly and in an adjustable position by providing a ceiling device and an installation method for indoor decoration.

[0075] The technical solution in the embodiment of the present application is to solve the above-mentioned technical problem of crosstalk, and the overall idea is as follows:

[0076] Since the thickness of the plate itself is relatively thin, screws cannot produce a reliable connection, and glue connection makes the installation efficiency low and inconvenient to adjust the position. Therefore, the applicant has come up with the idea of ​​using a snap connection to fix the plate on the main keel, and to connect the main keel with the back plate of the plate without damaging the panel of the plate. The snap connection only needs to be firmly snapped to produce a reliable connection between the plate and the main keel. The connection strength will not be limited by the thickness of the plate, and even a thin back aluminum plate can produce a quick and reliable connection.

[0077] In order to ensure that the snap connection has sufficient connection strength and is convenient and quick to install, the applicant specially designed a connection part, which includes an expansion tube, a pin body, a back-mounted keel and a back-mounted spliced ​​keel. The expansion tube is inserted into the installation hole on the back plate, and the pin body is located in the expansion tube. The first buckle groove of the back-mounted keel or the second buckle groove of the back-mounted spliced ​​keel is buckled on the expansion tube. The expansion tube, the pin body, the back-mounted keel or the back-mounted spliced ​​keel is locked by a first screw, and the bottom of the pin body is pressed against the buckle position on the expansion tube, and the back plate of the plate body is clamped between the buckle position on the outside of the expansion tube and the back-mounted keel or the back-mounted spliced ​​keel, so that the plate body is connected to the back-mounted keel or the back-mounted spliced ​​keel, and then the first plug-in on the back-mounted keel or the second plug-in on the back-mounted spliced ​​keel is snapped into the clamp on the main keel, thereby realizing the lifting of the plate body.

[0078] Among them, the back-mounted joint keel is also equipped with a clamping piece for pressing the plate downward compared to the back-mounted keel, so as to realize the connection of two horizontally adjacent plates. The expansion tube is designed as a double-head or multi-head structure, which can prevent the expansion tube from rotating when the first screw is locked or loosened, and also increase the contact area between the buckle position of the expansion tube and the back plate, so as to make the connection more reliable. The cross-sectional shape of the top section of the pin body is a polygon, which can effectively prevent the pin body from rotating when the first screw is locked, so as to make the connection more reliable; the cross-sectional shape of the bottom section of the pin body is a circle, which is adapted to the inner wall of the expansion tube, and the outer edge of the side of the bottom section exceeds the outer edge of the side of the top section. When the first screw is locked, the pin body moves upward, and the bottom section enters the tube body and presses against the inner wall of the expansion tube, so that the buckle position presses the back plate of the plate upward, so that the back plate is clamped between the buckle position on the outside of the expansion tube and the back-mounted keel or the back-mounted joint keel.

[0079] In addition, the suspended ceiling is convenient for the construction of two or more suspended ceiling layers. The upper and lower adjacent suspended ceiling layers only need to be connected in series by the suspension rods to fix the main keels of each layer. The vertical board between the upper and lower adjacent suspended ceiling layers can cover the gap between the two suspended ceiling layers, making the overall suspended ceiling more beautiful. The vertical board is fixedly connected to the board body on the upper layer through the vertical board keel and the back-mounted joint keel, which is stable and quick to install.

[0080] Secondly, there is a gap between the bottom panel and the side wall. In order to ensure the integrity of the suspended ceiling, an insert edge trimming strip and an elastic insert edge trimming strip decorative cover are designed to fix the bottom panel to the side wall to support the panel from all sides so that the panel can be stably kept level and play a decorative role. The insert edge trimming strip and the elastic insert edge trimming strip decorative cover are connected by snap-fit, which is easy and quick to install and the connection is reliable.

[0081] In summary, the interior decoration ceiling provided by the present application is completely different from the existing mainstream installation structure. It adopts a method of fixing the back-mounted keel or the back-mounted seam keel to the back plate of the plate body. Through the innovative design of the unique structure of the expansion tube and the pin body, the back-mounted keel or the back-mounted seam keel and the thinner back plate of the plate body can also be quickly and reliably connected. Relying on the fixing method of the back-mounted keel or the back-mounted seam keel to the back plate of the plate body, a new plate body installation structure and installation method are developed, which can give full play to the expressiveness of the plate body, greatly reduce the installation difficulty of the plate body, and improve the installation efficiency. Therefore, the interior decoration ceiling described in the embodiment of the present application solves the technical problem that the plate body and the keel cannot achieve a reliable, fast and adjustable position connection in the prior art, and achieves the beneficial effects of greatly reducing the installation difficulty of the plate body, improving the installation efficiency, and reliable connection and adjustable position.

[0082] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0083] Embodiment 1

[0084] Figure 1 Schematic diagram of the structure of a ceiling for indoor decoration provided by this embodiment. Figure 1 As shown, the suspended ceiling includes at least one suspended top layer, and the suspended top layer includes a main keel 300, a plate body 200 and a connecting portion.

[0085] The main keel 300 is arranged horizontally, and the main keel 300 is fixedly connected to the top wall 910 through the suspension rod 711, and a plurality of clamping parts 310 are arranged at intervals on the main keel 300. Specifically, a main keel hanger 320 is fixed on the main keel 300, the top of the suspension rod 711 is fixed to the top wall 910 by bolts, the bottom of the suspension rod 711 extends vertically downward and is inserted into the main keel hanger 320, and is tightened on the main keel hanger 320 by a nut, thereby fixing the main keel 300.

[0086] Figure 2 , 3 They are a structural schematic diagram and a side view of a plate body for indoor decorative ceiling provided in an embodiment. Figure 2 , 3As shown, the panel body 200 is horizontally laid below the main keel 300, and the panel body 200 includes a back panel 210 (facing the top wall when installed) and a panel 230 (facing the interior when installed). Specifically, in this embodiment, the panel body 200 is an aluminum honeycomb composite panel, such as Figure 3 As shown, the aluminum honeycomb composite panel includes a back plate 210 (back aluminum plate), a face plate 230 (back aluminum plate), and a honeycomb core 220 disposed between the back plate 210 and the face plate 230 .

[0087] The bottom end of the connecting portion is snap-connected to the back plate 210 of the plate body 200 , and the top end of the connecting portion is snap-connected to the snap-connected portion 310 , thereby fixing the plate body 200 on the main keel 300 .

[0088] Specifically, in this embodiment, the back plate 210 of the plate body 200 is snap-connected with the main keel 300 through a connecting portion. The snap-connection only needs to be firmly snapped to produce a reliable connection between the plate body 200 and the main keel 300. The connection strength will not be restricted by the thickness of the plate body 200, and even a thinner back aluminum plate can produce a quick and reliable connection. In addition, the snap-connection is an instant connection, no waiting is required, and the position is easy to adjust, and the connection is fast and convenient. Therefore, the indoor decorative ceiling described in the embodiment of the present application solves the technical problem that the plate body and the keel cannot achieve a reliable, fast and adjustable connection in the prior art, and provides a new plate body installation structure and installation method, which can give full play to the expressiveness of the plate body 300, so that the overall effect of the ceiling is good, and the installation difficulty of the plate body 300 is greatly reduced.

[0089] Figure 4 yes Figure 1 A magnified schematic diagram of the structure at center A. Figure 4 A structural schematic diagram of the connection part of a ceiling for interior decoration is provided Figure 1 ,like Figure 4 As shown, the clamping portion 310 includes a clamping piece 311 and a clamping keel 314 .

[0090] The clamping member 311 is fixed on the main keel 300. The bottom of the clamping member 311 has a first clamping slot 312 that is open downward, and the slot of the first clamping slot 312 is narrower than the bottom of the first clamping slot 312. The top of the clamping keel 314 has a first clamping head 314 that is clamped into the first clamping slot 313. The top of the first clamping head 314 is wider than the bottom of the first clamping head 314, and the top of the first clamping head 314 has a hanging ear 312 that can be inserted into the first clamping slot 313 and extends to both sides of the first clamping slot 313, so as to prevent the first clamping head 314 from slipping out of the first clamping slot 313; the bottom of the clamping keel 314 has an expansion cavity 315, and the bottom surface of the expansion cavity 315 is connected to an insertion channel 316, which is narrower than the expansion cavity 315, and the top of the insertion channel 316 is connected to the expansion cavity 315, and the bottom of the insertion channel 316 extends vertically downward.

[0091] Specifically, in this embodiment, the clamping keel 314 is a triangular keel, and the clamping member 311 is a triangular keel clamping member.

[0092] like Figure 1 , 2 As shown in FIG. 3 , a mounting hole 240 is opened on the plate body 200, and the bottom end of the connecting portion is snap-connected with the mounting hole 240. Specifically, the back panel 210 is recessed into the plate body 200 to form the mounting hole 240. The mounting hole 240 is a round hole, and the mounting hole 240 is a blind hole, thereby ensuring the integrity of the panel 230 of the plate body 200 and further ensuring the overall aesthetics of the ceiling.

[0093] like Figure 4 As shown, the connection part includes a back-mounted keel 400 and a connection assembly 100. The upper end of the connection keel is connected to the expansion insertion cavity 315 on the main keel 300, and the back plate 210 of the plate body 200 is connected to the lower end of the connection keel through the connection assembly 100. Figure 5 FIG. 4 is a schematic diagram of the structure of a back-mounted keel 400 for indoor decorative ceiling provided in this embodiment. Figure 4 , 5 As shown, the back-mounted keel 400 includes a first plug-in 410 and a first buckle slot 420. The top of the first plug-in 410 is connected to a first expansion plug 411. The first expansion plug 411 extends vertically upward to be inserted into the expansion insertion cavity 315 through the insertion channel 316. One side of the top of the first buckle slot 420 is connected to the bottom of the first plug-in 410. The notch of the first buckle slot 420 faces downward, the bottom of the first buckle slot 420 faces upward, and a first screw through hole 430 is opened on the bottom of the first buckle slot 420 (in this embodiment, the first connection port is the first screw through hole 430).

[0094] Further, such as Figure 4 As shown, the outer side of the first expansion plug 411 is a plane, which is convenient for passing through the insertion channel 316 and inserting into the expansion cavity 315. The inner side of the first expansion plug is a convex structure that is small at the top and large at the bottom, which is also convenient for passing through the insertion channel 316 and inserting into the expansion cavity 315. The widest part of the first expansion plug 411 is wider than the insertion channel 316 to prevent it from slipping out of the expansion cavity 315.

[0095] like Figure 4 As shown, the connection assembly 100 includes an expansion tube 110, a pin body 120 and a first screw 130 (in this embodiment, the first locking member is the first screw 130). Figure 6 The present embodiment provides a structural diagram of an expansion tube 110 for indoor decorative ceilings, as shown in FIG. Figure 4 , 6 As shown, the expansion tube 110 includes a tube body 111 arranged in the first buckle groove 420, and a second screw through hole 113 aligned with and penetrating the first screw through hole 430 is provided on the top surface of the tube body 111 (in this embodiment, the second connection port is the second screw through hole 113); the bottom of the tube body 111 extends into the mounting hole 240, and a buckle position 114 is provided on the side of the bottom of the tube body 111, which extends laterally and horizontally to the side wall of the mounting hole 240 to hook the back plate 210 of the plate body 200 upwards.

[0096] Figure 7 The present embodiment provides a structural diagram of a pin body 120 for indoor decoration ceiling, as shown in FIG. Figure 4 , 7 As shown, the pin body 120 is clamped in the tube body 111, and the pin body 120 squeezes the expansion tube 110 and presses the buckle 114 tightly against the plate body 200. The pin body 120 is also provided with a third screw through hole 123 that is aligned with and passes through the second screw through hole 113 (in this embodiment, the third connection port is the second screw through hole 113).

[0097] Furthermore, the buckle position 114 is arranged along the circumference of the tube body 111, and the buckle position 114 gradually narrows from top to bottom along the axial direction of the tube body 111. In this embodiment, the cross-sectional shape of the buckle position 114 is triangular, which facilitates the insertion of the tube body 111 between the pin body 120 and the mounting hole during installation, and has a larger contact surface with the back plate.

[0098] The first screw 130 passes through the first screw hole 430 and the second screw hole 113 and extends into the third screw hole 123 , and tightens the plate 200 between the buckle position 114 and the back-mounted keel 400 , thereby fixing the plate 200 on the back-mounted keel 400 .

[0099] Specifically, during the installation process, when the first screw 130 is locked, the pin body 120 moves upward and simultaneously presses against the inner wall of the expansion tube 110 upward and toward both sides, so that the buckle position 114 presses the back plate 210 of the plate body 200 upward, and the back plate 210 is clamped between the buckle position 114 on the outside of the expansion tube 110 and the back-mounted keel 400, thereby achieving a reliable connection between the back plate 210 and the back-mounted keel 400.

[0100] Further, a flange 115 protruding toward the middle of the tube body 111 is provided on the inner wall surface in the middle of the tube body 111, and the flange 115 is interference-fitted with the pin body 120. Specifically, only the flange 115 is interference-fitted with the pin body 120, rather than the entire inner wall surface of the tube body 111 and the pin body 120, so that the friction force can be reduced, so that when the first screw 130 is tightened, the pin body 120 is more likely to move upward.

[0101] Furthermore, the notch of the first buckle slot 420 of the back-mounted keel 400 is connected to a first abutting surface 440 extending to the side to abut against the back plate 210 on both sides of the mounting hole 240 .

[0102] Further, such as Figure 6 As shown, the expansion tube 110 includes at least two tube bodies 111, and two adjacent tube bodies 111 are connected by a connector 112, so as to prevent the expansion tube 110 from rotating when the first screw 130 is turned. Specifically, in this embodiment, the connector is connected to the top surface of the tube body and keeps it flush. When the expansion tube 110 has two tube bodies 111, the expansion tube 110 is double-headed. When the expansion tube 110 has more than two tube bodies 111, the expansion tube 110 is multi-headed. The expansion tube 110 is designed as a double-headed or multi-headed structure, which can prevent the expansion tube from rotating when the first screw 130 is locked or loosened, and also increases the contact area between the buckle position 114 of the expansion tube 110 and the back plate 210, so as to make the connection more reliable.

[0103] Further, such as Figure 6As shown, a fork 115 for providing elasticity is provided on the side of the bottom of the tube body 111. Specifically, the bottom end of the tube body 111 is recessed toward the tube body 111 to form the fork 115, and the opening size of the fork 115 gradually decreases from the bottom end of the tube body 111 to the middle of the tube body 111. The fork 115 makes the bottom of the tube body 111 have a certain elasticity, so as to facilitate the expansion tube 110 to be pressed into the mounting hole 240 of the back plate.

[0104] Further, such as Figure 7 As shown, the pin body 120 includes a top section 121 for opening the third screw through hole 123, and the cross-sectional shape of the top section 121 is a polygon. Specifically, the cross-sectional shape of the tube body 111 is a circle, and the cross-sectional shape of the top section 121 is a polygon (for example, in this embodiment, the cross-sectional shape of the top section 121 is an octagon) to prevent the pin body 120 from rotating when the screw is tightened, thereby making the connection more reliable. And the flange 115 is interference fit with the top section 121.

[0105] Further, such as Figure 7 As shown, the pin body 120 also includes a bottom section 122 for pressing the buckle position 114 against the mounting hole 240, and the outer edge of the side of the bottom section 122 exceeds the outer edge of the side of the top section 121. In this embodiment, the bottom section 122 is a truncated cone, and the small end of the truncated cone is connected to the top section. In this way, when the pin body 120 moves upward, it is convenient for the bottom section 122 to gradually press against the buckle position 114.

[0106] Specifically, the outer edge of the side surface of the bottom section 122 exceeds the outer edge of the side surface of the top section 121. When the first screw 130 is locked, the pin body 120 moves upward, and the bottom section 122 enters the tube body 111 and presses against the inner wall of the expansion tube 110, so that the buckle position 114 presses the back plate 210 of the plate body 200 upward, and the back plate 210 is clamped between the buckle position 114 on the outside of the expansion tube 110 and the back-mounted keel 400, realizing a reliable connection between the back plate 210 and the back-mounted keel 400. In addition, the bottom section 122 of the pin body 120 is a truncated cone, which facilitates the pin body 120 to gradually press against the buckle position 114 during the upward movement.

[0107] In summary, the indoor decorative ceiling provided by the present embodiment is completely different from the existing mainstream installation structure. It adopts the method of fixing the back-mounted keel 400 with the back plate 210 of the plate body 200. Through the innovative design of the unique structure of the expansion tube 110 and the pin body 120, the back-mounted keel 400 and the thinner back plate (back aluminum plate) of the plate body 200 (generally an aluminum honeycomb composite plate) can also be quickly and reliably connected. Relying on the fixing method of the back-mounted keel 400 and the back plate of the plate body 200, a new installation structure and installation method of the plate body 200 are developed, which can give full play to the expressiveness of the plate body 200, greatly reduce the installation difficulty of the plate body 200, and improve the installation efficiency. Therefore, the indoor decorative ceiling described in the embodiment of the present application solves the technical problem that the plate body and the keel cannot achieve reliable, fast and adjustable position connection in the prior art, and achieves the beneficial effects of greatly reducing the installation difficulty of the plate body 300, improving the installation efficiency, and reliable connection and adjustable position.

[0108] The technical solutions in the above embodiments of the present application also have at least the following technical effects or advantages:

[0109] (1) The back plate of the plate body 200 described in this embodiment is snap-connected to the main keel 300 through a connecting portion. The snap-connection only needs to be firmly snapped to make a reliable connection between the plate body 200 and the main keel 300. The connection strength will not be restricted by the thickness of the plate body 200. Even a thinner back aluminum plate can be quickly and reliably connected. In addition, the snap-connection is an instant connection, no waiting is required, and the position is easy to adjust, and the connection is fast and convenient. Therefore, the indoor decorative ceiling described in the embodiment of the present application solves the technical problem that the plate body and the keel cannot achieve a reliable, fast and adjustable connection in the prior art, and achieves the beneficial effects of greatly reducing the installation difficulty of the plate body 300, improving the installation efficiency, and achieving a reliable connection and adjustable position.

[0110] (2) The indoor decorative ceiling provided in this embodiment is completely different from the existing mainstream installation structure. It adopts a method of fixing the back-mounted keel 400 with the back plate 210 of the panel 200, and realizes the snap connection by innovatively designing the unique structure of the expansion tube 110 and the pin body 120, so that the back-mounted keel 400 and the thinner back plate (back aluminum plate) of the panel 200 (generally an aluminum honeycomb composite plate) can also be quickly and reliably connected. Relying on the fixing method of the back-mounted keel 400 and the back plate of the panel 200, a new panel 200 installation structure and installation method are developed, which can give full play to the expressiveness of the panel 200, greatly reduce the installation difficulty of the panel 200, and improve the installation efficiency. Therefore, the indoor decorative ceiling described in the embodiment of the present application solves the technical problem that the panel and the keel cannot achieve reliable, fast and adjustable position connection in the prior art, and achieves the beneficial effects of greatly reducing the installation difficulty of the panel 300, improving the installation efficiency, and reliable connection and adjustable position.

[0111] (3) The expansion tube 110 and the pin body 120 described in this embodiment cooperate with each other. When the first screw 130 is locked, the pin body 120 moves upward and simultaneously presses against the inner wall of the expansion tube 110 upward and toward both sides, so that the buckle position 114 presses the back plate 210 of the plate body 200 upward. Then, the back plate 210 is clamped between the buckle position 114 on the outside of the expansion tube 110 and the back-mounted keel 400, thereby realizing a reliable connection between the back plate 210 and the back-mounted keel 400.

[0112] (4) The expansion tube 110 described in this embodiment is designed as a double-head or multi-head structure, which can prevent the expansion tube from rotating when the first screw 130 is locked or loosened, and also increases the contact area between the buckle position 114 of the expansion tube 110 and the back plate 210, thereby making the connection more reliable.

[0113] (5) The side surface of the bottom of the tube body 111 described in this embodiment is provided with a fork 115 for providing elasticity. The fork 115 makes the bottom of the tube body 111 have a certain elasticity, thereby facilitating the expansion tube 110 to be pressed into the mounting hole 240 of the back plate.

[0114] (6) The pin body 120 described in this embodiment includes a top section 121 for opening the third screw through hole 123. The cross-sectional shape of the top section 121 is polygonal. Since the cross-sectional shape of the tube body 111 is circular, the pin body 120 can be effectively prevented from rotating when the screw is tightened, thereby making the connection more reliable.

[0115] (7) In this embodiment, the outer edge of the side of the bottom section 122 exceeds the outer edge of the side of the top section 121. When the first screw 130 is tightened, the pin body 120 moves upward, and the bottom section 122 enters the tube body 111 and presses against the inner wall of the expansion tube 110, so that the buckle position 114 presses the back plate 210 of the plate body 200 upward, and the back plate 210 is clamped between the buckle position 114 on the outside of the expansion tube 110 and the back-mounted keel 400, realizing a reliable connection between the back plate 210 and the back-mounted keel 400. In addition, the bottom section 122 of the pin body 120 is a truncated cone, which facilitates the pin body 120 to gradually press against the buckle position 114 during the upward movement.

[0116] (8) The outer side of the first expansion plug 411 is a plane, which is convenient for passing through the insertion channel 316 and inserting into the expansion cavity 315. The inner side of the first expansion plug is a convex structure with a small top and a large bottom, which is also convenient for passing through the insertion channel 316 and inserting into the expansion cavity 315. The widest part of the first expansion plug 411 is wider than the insertion channel 316 to prevent it from slipping out of the expansion cavity 315.

[0117] Embodiment 2

[0118] The difference between this embodiment and the first embodiment is that the suspended top layer includes at least two plate bodies 100 , and the suspended top layer also includes a back-mounted joint keel 500 for splicing two adjacent plate bodies 100 .

[0119] Figure 8 yes Figure 1 The enlarged schematic diagram of the structure at B in the middle, Figure 8 A structural schematic diagram of the connection part of a ceiling for interior decoration is provided Figure 2 , Fig. 9 , 10 They are respectively a structural explosion diagram and a stereoscopic diagram of a connection portion of a ceiling for indoor decoration provided by this embodiment, Fig.11 FIG. 5 is a structural exploded view of a back-mounted joint keel 500 for indoor decorative ceiling provided in this embodiment. Figures 8 to 11 As shown, the back-mounted seam keel 500 includes a second plug-in unit 510 , a second buckle groove 520 and a pressing member 550 .

[0120] A second expansion plug 511 is connected to the top of the second plug-in 510, and the second expansion plug 511 extends vertically upward to be inserted into the expansion insertion cavity 315 through the insertion channel 316; one side of the top of the second buckle groove 520 is connected to the bottom of the second plug-in 510, the notch of the second buckle groove 520 is open downward, the bottom of the second buckle groove 520 is upward, and a fourth screw through hole 530 is provided on the bottom of the second buckle groove 520 (in this embodiment, the fourth connection port is the fourth screw through hole 530); the clamping member 550 is arranged on one side of the second buckle groove 520 and extends horizontally, and the clamping member 550 is located below the second plug-in 510, and the bottom surface 560 of the clamping member 550 is connected to the notch on one side of the second buckle groove 520 and is flush with the notch of the second buckle groove 520, so as to synchronously contact downward on the back plate 210 of the plate body 200.

[0121] Furthermore, the outer side of the second expansion plug 511 is flat, which is convenient for passing through the insertion channel 316 and inserting into the expansion cavity 315. The inner side of the second expansion plug 511 has a convex structure that is small at the top and large at the bottom, which is also convenient for passing through the insertion channel 316 and inserting into the expansion cavity 315. The widest part of the second expansion plug 511 is wider than the insertion channel 316 to prevent it from slipping out of the expansion cavity 315.

[0122] Furthermore, the notch of the second buckle groove 520 extends horizontally to both sides to form a second contact surface 540 on the back plate 210 on both sides of the mounting hole 240, and the second contact surface 540 is flush with and connected to the bottom surface 560 of the clamping member 550 to be pressed against the back plate 210 together.

[0123] The specific connection structure of the back-mounted seam keel 500 for splicing two adjacent plate bodies 200 is as follows: two adjacent plate bodies 200 are respectively connected to one back-mounted seam keel 500, and the two back-mounted seam keels 500 are symmetrically arranged about the seam of the two adjacent plate bodies 200, wherein the second buckle grooves 520 of the two back-mounted seam keels 500 are respectively connected to the two adjacent plate bodies 200 through one connecting component 100; the second expansion plugs 511 of the two back-mounted seam keels 500 are jointly inserted into the same expansion insertion cavity 315 located above; the clamping pieces 550 of the two back-mounted seam keels 500 are adjacent and press downward against the back plate 210 of the plate body 200 to keep the plate body 200 level.

[0124] Further, such as Figure 8As shown, a beautifying decorative strip 250 is further provided between two adjacent plates 200 , one end of the beautifying decorative strip 250 is provided with a plug that can be hung on the gap between the two adjacent plates 200 , and the other end of the beautifying decorative strip 250 is tightened on the panel 220 through a nut.

[0125] The technical solutions in the above embodiments of the present application also have at least the following technical effects or advantages:

[0126] (1) The indoor decorative ceiling provided in this embodiment is completely different from the existing mainstream installation structure. It adopts a method of fixing the back-mounted joint keel 500 with the back plate 210 of the panel 200, and realizes the snap connection by innovatively designing the unique structure of the expansion tube 110 and the pin body 120, so that the back-mounted joint keel 500 and the thinner back plate (back aluminum plate) of the panel 200 (generally an aluminum honeycomb composite plate) can also be quickly and reliably connected. Relying on the fixing method of the back-mounted joint keel 500 and the back plate of the panel 200, a new panel 200 installation structure and installation method are developed, which can give full play to the expressiveness of the panel 200, greatly reduce the installation difficulty of the panel 200, and improve the installation efficiency. Therefore, the indoor decorative ceiling described in the embodiment of the present application solves the technical problem that the panel and the keel cannot achieve reliable, fast and adjustable position connection in the prior art, and achieves the beneficial effects of greatly reducing the installation difficulty of the panel 300, improving the installation efficiency, and reliable connection and adjustable position.

[0127] (2) The back-mounted seam keel 500 provided in this embodiment can also realize the splicing connection of two adjacent plate bodies 200. The two adjacent plate bodies 200 are respectively connected to one back-mounted seam keel 500. The second buckle grooves 520 of the two back-mounted seam keels 500 are respectively connected to the two plate bodies 200 through the connecting assembly 100; the second expansion plugs 511 of the two back-mounted seam keels 500 are jointly inserted into the same expansion insertion cavity 315 located above; the clamping pieces 550 of the two back-mounted seam keels 500 are adjacent and press downward against the back plate 210 of the plate body 200 to keep the plate body 200 level, thereby realizing the splicing installation of the two adjacent plate bodies 200 and improving practicality.

[0128] (3) The outer side of the second expansion plug 511 is flat, so that it can be inserted into the expansion cavity 315 through the insertion channel 316. The inner side of the second expansion plug 511 has a convex structure that is smaller at the top and larger at the bottom, so that it can be inserted into the expansion cavity 315 through the insertion channel 316. The widest part of the second expansion plug 511 is wider than the insertion channel 316 to prevent it from slipping out of the expansion cavity 315.

[0129] The various variations and specific examples of an interior decorative ceiling in the aforementioned embodiment 1 are also applicable to an interior decorative ceiling in the present embodiment. Through the aforementioned detailed description of an interior decorative ceiling, those skilled in the art can clearly understand the interior decorative ceiling in the present embodiment, so for the sake of brevity of the specification, it will not be described in detail here.

[0130] Embodiment 3

[0131] The difference between this embodiment and the second embodiment is that the suspended ceiling includes at least two suspended top layers, and in the two upper and lower adjacent suspended top layers, the main keel 300 of the suspended top layer located at the bottom is fixedly connected with the main keel 300 of the suspended top layer located at the top, and a vertical plate 700 is provided between the four sides of the upper plate body 200 and the inner side of the lower plate body 200, the vertical plate 700 is perpendicular to the plate body 200, and the top of the vertical plate 700 is snap-connected with the upper plate body 200 through the back-mounted seam keel 500 and the vertical plate keel 600, as shown in FIG. Figure 1 shown.

[0132] Specifically, the vertical plate 700 may be made of the same material as the plate body. For example, in this embodiment, the vertical plate 700 is also an aluminum honeycomb composite plate.

[0133] like Figure 1 As shown, the suspension rod 711 passes through the main keel hanger 712 of the main keel 300 located above and extends into the main keel hanger 712 on the main keel 300 located below, and is tightened on the main keel hanger 712 on the main keel 300 located below through a nut, thereby realizing a reliable connection between the two adjacent main keels 300 above and below.

[0134] like Fig.11 As shown, a horizontally extending groove 570 is provided on the outer side of the pressing member 550 of the back-mounted seam keel 500, and the notch of the groove 570 is open outward.

[0135] Fig.12 FIG. 1 is a schematic diagram of the connection between a vertical plate and a plate body of a ceiling for indoor decoration provided in this embodiment. Fig.12 As shown, the vertical plate keel 600 includes a third buckle slot 620 and a third plug-in unit 610. The slot of the third buckle slot 620 is open downward to clamp the top of the vertical plate 700; one side of the third buckle slot 620 is provided with a support plate 650 extending horizontally to the bottom of the adjacent plate body 200 to support the adjacent plate body 200 upward, and the other side of the third buckle slot 620 is provided with a fifth screw through hole (in this embodiment, the fifth connection port is the fifth screw through hole).

[0136] The top of the third plug-in 610 is connected to a third expansion plug 611, and the third expansion plug 611 extends vertically upward to be inserted into the expansion insertion cavity 315 through the insertion channel 316. The bottom end of the third plug-in 610 is connected to the top of the third buckle groove 620, and the third plug-in 610 is provided with a sixth screw through hole for aligning with and passing through the notch of the groove 570 of the back-mounted seam keel 500 (in this embodiment, the sixth connection port is the sixth screw through hole).

[0137] The top of the vertical board 700 and the periphery of the board body 200 are connected by snapping the back-mounted seam keel 500 and the vertical board keel 600 in the following specific connection structure:

[0138] The second expansion plug 511 of the back-mounted seam keel 500 is inserted into the expansion insertion cavity 315 located above, and the second buckle groove 520 of the back-mounted seam keel 500 is connected to the plate body 200 through the connecting assembly 100; the third buckle groove 620 of the vertical plate keel 600 is buckled at the top of the vertical plate 700, and the second screw 640 (in this embodiment, the second locking member is the second screw 640) passes through the fifth screw through hole and connects the third buckle groove 620 and the vertical plate 700. The boards 700 are tightened together; the third expansion plug 611 of the vertical board keel 600 is inserted into the expansion insertion cavity 315 where the matching second expansion plug 511 is located, and the third screw 630 (in the present embodiment, the third locking member is the third screw 630) passes through the sixth screw through hole and extends into the groove 570 to tighten the vertical board keel 600 and the back-mounted seam keel 500 together, and the support plate 650 lifts up the end of the board body 200.

[0139] Specifically, the specific connection structure of the second buckle groove 520 of the back-mounted joint keel 500 connected to the plate body 200 through the connection assembly 100 is:

[0140] The pin body 120 is clamped in the tube body 111, and the pin body 120 squeezes the expansion tube 110 and presses the buckle position against the plate body 200. The second buckle groove 520 of the back-mounted seam keel 500 is sleeved outside the tube body 111. The first screw 130 passes through the fourth screw through hole 530, the second screw through hole 113 and extends into the third screw through hole 123, and the plate body 200 is tightened between the buckle position 114 and the back-mounted keel 400, thereby fixing the plate body 200 on the back-mounted seam keel 500.

[0141] The technical solutions in the above embodiments of the present application also have at least the following technical effects or advantages:

[0142] (1) The embodiment of the present application provides a suspended ceiling for interior decoration, which can facilitate the construction of two or more suspended ceiling layers by fixing the main keels 300 of each layer in series through the suspension rods 711. The installation is convenient and efficient, and the construction will not affect each other.

[0143] (2) In the embodiment of the present application, a vertical plate 700 is arranged between two adjacent upper and lower suspended ceiling layers, which can cover the gap between the two adjacent upper and lower suspended ceiling layers, making the overall suspended ceiling more beautiful.

[0144] (3) The vertical plate 700 and the plate body 200 described in the embodiment of the present application are connected by the back-mounted seam keel 500 and the vertical plate keel 600. The unique structure of the expansion tube 110 and the pin body 120 is innovatively designed to achieve a snap-on connection, so that the plate body 200 and the vertical plate 700 can be quickly and reliably connected, which greatly reduces the difficulty of installing the plate body 200 and improves the installation efficiency.

[0145] The various variations and specific examples of an interior decorative ceiling described in the aforementioned embodiment are also applicable to an interior decorative ceiling in this embodiment. Through the aforementioned detailed description of an interior decorative ceiling, those skilled in the art can clearly know the interior decorative ceiling in this embodiment, so for the sake of brevity of the specification, it will not be described in detail here.

[0146] Embodiment 4

[0147] The difference between this embodiment and the second embodiment is that an insert edge strip 820 is provided between the outer side of the plate body 200 located at the bottom layer (the side facing outside the house is the outside, that is, the side facing the side wall, and the side facing the interior is the inside) and the side wall 920, and the insert edge strip 820 is connected to the side of the plate body 200 via an elastic insert edge strip decorative cover 810.

[0148] Fig.13 FIG. 1 is a schematic diagram of a structure in which a ceiling plate for indoor decoration provided in this embodiment is connected to a side wall through an insert edge trimming strip 820 and an elastic insert edge trimming strip decorative cover, as shown in FIG. Fig.13 As shown, the insert edge trimming strip 820 includes a body 821, a plug connector 822 and a connection plane 824. The body 821 is horizontally arranged between the plate body 200 and the side wall; the top of the plug connector 822 is vertically fixedly connected to the body 821, and the bottom of the plug connector 822 extends vertically downward and is provided with a plug connector 823; the connection plane 824 is attached to the side wall 920, and the connection plane 824 is fixed to the side wall 920 by a fourth screw 824. Specifically, the insert edge trimming strip 820 described in this embodiment is a "W"-shaped insert edge trimming strip.

[0149] Fig.14Schematic diagram of the structure of an elastic edge trimming strip decorative cover for an indoor decorative ceiling provided in this embodiment. Fig.13 , 14 As shown, the elastic insert edge trimming strip decorative cover 810 includes a decorative surface 811, one end of the upper surface of the decorative surface 811 is provided with a support point 815 for supporting the panel 230 of the plate body 200 upward, and the other end of the upper surface of the decorative surface 811 is provided with an elastic slot 817 for inserting the plug connector 823 and a support surface 816 for supporting the main body 821 of the insert edge trimming strip 820 upward.

[0150] Furthermore, a first connecting surface 813 and a second connecting surface 812 are spaced apart on the upper surface of the decorative surface 811, the bottom ends of the first connecting surface 813 and the second connecting surface 812 are both vertically connected to the decorative surface 811, and an elastic clip 814 is connected to the top end of the first connecting surface 813 facing the side of the second connecting surface 812, and the first connecting surface 813 and the second connecting surface enclose the elastic slot 817 on the decorative surface 811.

[0151] Furthermore, the supporting surface 816 is vertically connected to the second connecting surface 812 .

[0152] In this embodiment, the inserted edge trimming strip 820 and the elastic inserted edge trimming strip decorative cover 810 can serve to fix the plate body 200 on the side wall 920, so as to support the plate body 200 from all sides and keep the plate body 200 stable and level; in addition, the inserted edge trimming strip 820 and the elastic inserted edge trimming strip decorative cover 810 can also serve as a decoration to ensure the integrity and aesthetics of the suspended ceiling; finally, during installation, first fix the inserted edge trimming strip 820 on the side wall 920, and then buckle the elastic slot 817 of the elastic inserted edge trimming strip decorative cover 810 onto the plug connector 823 of the inserted edge trimming strip 820. The installation is convenient and quick, and the connection is reliable.

[0153] Furthermore, an edge banding strip 250 is provided on the exposed side of the board body 200, and the edge banding strip 250 includes an edge banding groove 251 that can cover the inner side surface of the board body 200, and the edge banding groove 251 is provided with a decorative strip 253 extending vertically upward, and the edge banding groove 251 is bonded to the back panel of the board body 200 by glue.

[0154] Specifically, the edge banding strip 250 covers the exposed side of the plate body 200 , which has an aesthetic effect, improves the integrity of the suspended ceiling, and also protects the plate body 200 .

[0155] Furthermore, Fig.15 yes Figure 1The enlarged view of the structure at E, Fig.15 FIG. 1 is a schematic diagram of a structure of an LED light strip installation assembly for indoor ceiling decoration provided in this embodiment. Fig.15 As shown, an LED light strip installation component 260 is also provided on the back plate 210 of the board body 200 to facilitate the subsequent installation of the LED light strip.

[0156] The technical solutions in the above embodiments of the present application also have at least the following technical effects or advantages:

[0157] (1) The insert edge trimming strip 820 and the elastic insert edge trimming strip decorative cover 810 described in the embodiment of the present application can serve to fix the panel body 200 on the side wall 920, so as to support the panel body 200 from all sides and keep the panel body 200 stable and level; in addition, the insert edge trimming strip 820 and the elastic insert edge trimming strip decorative cover 810 can also serve as a decoration to ensure the integrity and aesthetics of the suspended ceiling; finally, during installation, the insert edge trimming strip 820 is first fixed to the side wall 920, and then the elastic slot 817 of the elastic insert edge trimming strip decorative cover 810 is buckled onto the plug connector 823 of the insert edge trimming strip 820, which is convenient and quick to install, and the connection is reliable.

[0158] (2) In this embodiment, an edge banding strip 250 is further provided on the side of the exposed plate body 200. The edge banding strip 250 covers the exposed side of the plate body 200, which has an aesthetic effect, improves the integrity of the ceiling, and also protects the plate body 200.

[0159] The various variations and specific examples of an interior decorative ceiling described in the aforementioned embodiment are also applicable to an interior decorative ceiling in this embodiment. Through the aforementioned detailed description of an interior decorative ceiling, those skilled in the art can clearly know the interior decorative ceiling in this embodiment, so for the sake of brevity of the specification, it will not be described in detail here.

[0160] Embodiment 5

[0161] Based on the same inventive concept as the indoor decorative ceiling in the aforementioned embodiment, the present invention also provides an installation method for the indoor decorative ceiling, comprising the following steps:

[0162] Step 10, installing the main keel 300 at the top layer, specifically:

[0163] The main keel 300 located at the uppermost layer is fixedly connected to the top wall 910 through the suspension rod 711, and the clamping part 310 is installed at the corresponding position on the main keel 300, and the edge strip 820 is installed on the side wall 920;

[0164] Step 20, installing the suspended top layer of the first layer, specifically:

[0165] Step 21: Drill the mounting hole 240 on the back plate 210 of the board body 200. Fig.16 As shown;

[0166] Specifically, when drilling two mounting holes 240 on the back plate 210 of the plate body 200, a drilling fixture is used to ensure the distance a between the mounting holes 240 and the edge of the back plate 210 and the hole spacing b between the two mounting holes 240, such as Fig.17 shown.

[0167] Step 22: Place the pin body 120 into the mounting hole 240 in sequence. Fig.18 As shown;

[0168] Step 23: Press the tube bodies 111 of the expansion tubes 110 into the mounting holes 240 one by one. Fig.19 As shown;

[0169] Step 24: Use the back-mounted keel 400 in the middle of the plate body 200, and use the back-mounted joint keel 500 at the side where the plate body 200 is connected to the vertical plate 700 and at the joint with the adjacent plate body 200; insert the first buckle groove 420 of the back-mounted keel 400 or the second buckle groove 520 of the back-mounted joint keel 500 into the corresponding tube body 110 of the expansion tube 110 one by one, as shown in FIG. Fig. 20 , 21 As shown;

[0170] Step 25: Insert the first screw 130 into the back-mounted keel 400 and the corresponding expansion tube and pin body, and insert the first screw 130 into the back-mounted joint keel 500 and the corresponding expansion tube and pin body; tighten the first screw, the pin body moves upward and presses against the expansion tube, so that the back plate 210 of the plate body 200 is clamped between the buckle position outside the expansion tube 120 and the back-mounted keel or the back-mounted joint keel, so that the plate body 200 is connected to the back-mounted keel or the back-mounted joint keel, as shown in FIG. Fig. 22 , 23 As shown;

[0171] Step 26: inserting the first plug-in unit 410 of the back-mounted keel 400 and the second plug-in unit 510 of the back-mounted seam keel 500 into the matching expansion insertion cavity 315;

[0172] Step 30, installing the vertical plate 700, specifically:

[0173] Fix the third buckle groove 620 of the vertical plate keel 600 to the top of the vertical plate 700, fix the vertical plate keel 600 to the matching back-mounted joint keel 500, and then insert the third plug-in 610 into the expansion insertion cavity 315 where the second plug-in 510 of the matching back-mounted joint keel 500 is located;

[0174] Step 40, installing the second suspended top layer, specifically:

[0175] Fix the second-layer main keel 300 to the first-layer main keel 300 through the suspension rod 711, install the clamping part 310 on the main keel 300, and then install the second-layer suspended top layer according to steps 21 to 26;

[0176] Step 50, installing a multi-layer suspended ceiling, specifically: installing the required number of suspended ceiling layers according to the steps 30 and 40 in sequence;

[0177] Step 60 , install the LED light strip installation assembly 260 , buckle the elastic decorative cover plate 810 on the corresponding edge inserting and edge trimming strip 820 ; install the edge banding strip 250 on the exposed side of the plate body 200 for edge banding.

[0178] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages: the installation method of a suspended ceiling for interior decoration described in the embodiments of the present application adopts a method of fixing the back-mounted keel 400 and the back-mounted seam keel 500 to the back plate 210 of the panel body 200, and realizes a snap connection through the unique structure of the innovatively designed expansion tube 110 and the pin body 120, so that the back-mounted keel 400, the back-mounted seam keel 500 and the thinner back plate (back aluminum plate) of the panel body 200 (generally an aluminum honeycomb composite plate) can also be quickly and reliably connected, and relying on the fixing method of the back-mounted keel 400, the back-mounted seam keel 500 to the back plate of the panel body 200, a new panel body 200 installation structure and installation method are developed, which can give full play to the expressiveness of the panel body 200, greatly reduce the installation difficulty of the panel body 200, and improve the installation efficiency. Therefore, the interior decoration ceiling described in the embodiment of the present application solves the technical problem in the prior art that the panel body and the keel cannot be reliably, quickly and position-adjustably connected, and achieves the beneficial effects of greatly reducing the installation difficulty of the panel body 300, improving the installation efficiency, and ensuring reliable and adjustable connection.

[0179] It should be understood that the directional terms such as outer, middle, inner, etc. mentioned or may be mentioned in this specification are defined relative to the structures shown in the drawings. They are relative concepts and may change accordingly according to different positions and different usage conditions. Therefore, these or other directional terms should not be interpreted as restrictive terms.

[0180] The above is only a preferred embodiment of the present application, and is not any formal or substantial limitation to the present application. It should be pointed out that ordinary technicians in this technical field can make several improvements and supplements without departing from the method of the present application, and these improvements and supplements should also be regarded as the protection scope of the present invention. Any technician familiar with this profession, without departing from the spirit and scope of the present application, can make some changes, modifications and evolutions of the technical content disclosed above, which are equivalent embodiments of the present application; at the same time, any changes, modifications and evolutions of any equivalent changes made to the above embodiments based on the substantial technology of the present application are still within the scope of the technical solution of the present application.

Claims

1. A ceiling device for indoor decoration, characterized in that: The ceiling device comprises at least one suspended ceiling layer, and the suspended ceiling layer comprises: A main keel, wherein the main keel is arranged horizontally and fixedly connected to the top wall, and a plurality of expansion cavities are arranged at intervals on the main keel; A plate body, wherein the plate body is horizontally laid below the main keel, and the plate body comprises a back plate and a front plate; A connecting part, wherein the bottom end of the connecting part is connected to the back plate of the plate body by buckle, and the top end of the connecting part is connected to the expansion cavity on the main keel by buckle, so as to fix the plate body on the main keel; The main keel is provided with a plurality of clamping parts at intervals, and the clamping parts include: A clamping piece, wherein the clamping piece is fixed on the main keel, and the bottom of the clamping piece has a first clamping slot open downward; A clamping keel, wherein the upper portion of the clamping keel has a first clamping head clamped into the first clamping slot, and the top of the first clamping head has a hanging ear that can be inserted into the first clamping slot and extends to both sides of the first clamping slot to prevent slipping; the lower portion of the clamping keel has the expansion insertion cavity; The connecting part includes a connecting keel and a connecting assembly, the upper end of the connecting keel is connected to the expansion insertion cavity on the main keel, and the back plate of the plate body is connected to the lower end of the connecting keel through the connecting assembly; The connecting keel also includes a back-mounted seam keel used at the joint of two adjacent plates, and the back-mounted seam keel includes: A second plug-in unit, a top end of which is connected to a second expansion plug, and the second expansion plug vertically extends upward to be inserted into the expansion cavity; A second buckle slot, used for buckling on the connecting assembly, a top side of the second buckle slot is connected to the bottom end of the second plug-in unit, and a notch of the second buckle slot is open downward; A pressing member, which is arranged on one side of the second buckle groove and extends horizontally, and is located below the second expansion plug; The specific connection structure of the back-mounted seam keel for splicing two adjacent plate bodies is as follows: the two back-mounted seam keels are symmetrically arranged, and the second buckle grooves of the two back-mounted seam keels are respectively connected to the two adjacent plate bodies through a connecting component; the second expansion heads of the two back-mounted seam keels are jointly inserted into the same expansion insertion cavity located above; the clamping parts of the two back-mounted seam keels are adjacent and press downward against the back plate of the plate body.

2. A ceiling device for indoor decoration as claimed in claim 1, characterized in that: The connecting keel comprises a back-mounted keel for connecting the expansion insertion chamber and the back plate of the plate body, and the back-mounted keel comprises: A first plug-in unit, a top end of which is connected to a first expansion plug, and the first expansion plug vertically extends upward to be inserted into the expansion plug cavity; The first buckle slot is used for buckling on the connecting component, one side of the top of the first buckle slot is connected to the bottom end of the first plug-in, and the notch of the first buckle slot is open downward.

3. A ceiling device for indoor decoration as claimed in claim 2, characterized in that: A first connection port for connecting with the connecting assembly through a locking member is provided on the bottom of the first buckle slot of the back-mounted keel, and a mounting hole for connecting with the connecting assembly is provided on the back plate of the board body; The connection assembly comprises: An expansion tube, the expansion tube comprising a tube body, a second connection port for aligning with and penetrating the first connection port is provided on the top surface of the tube body; the bottom of the tube body extends into the mounting hole, and a buckle position is provided on the side surface of the bottom of the tube body and extends laterally into the side wall of the mounting hole to press the back plate upward; A pin body, wherein the pin body is clamped in the tube body, and the bottom of the pin body presses the expansion tube and presses the buckle position against the back plate, and the pin body is also provided with a third connection port for aligning with and penetrating the second connection port; A locking member, wherein the locking member passes through the first connection port, the second connection port and extends into the third connection port, and locks and fixes the connecting keel, the expansion tube and the pin body, and the back plate of the plate body is fixed between the buckle position of the expansion tube and the connecting keel.

4. A ceiling device for indoor decoration as claimed in claim 3, characterized in that: The expansion tube comprises at least two tube bodies, and two adjacent tube bodies are connected by a connecting body, so as to prevent the expansion tube from rotating when the locking member is twisted.

5. The indoor decorative ceiling device according to claim 3, characterized in that: The pin body includes a top section and a bottom section; The cross-sectional shape of the top section is a polygon, so as to prevent the pin body from rotating when the locking member is twisted; The cross-sectional shape of the bottom section is circular, and the outer diameter of the bottom section is larger than the inner diameter of the bottom of the expansion tube body, so as to press the buckle at the bottom of the expansion tube body outward and press the buckle into the mounting hole on the back plate of the plate body.

6. A ceiling device for indoor decoration as claimed in claim 4, characterized in that: In the two upper and lower adjacent suspended top layers, the main keel of the suspended top layer located at the lower side is fixedly connected to the main keel of the suspended top layer located at the upper side, and a vertical plate is provided between the upper plate body and the lower plate body, and the top end of the vertical plate is connected to the upper plate body through the back-mounted seam keel and the vertical plate keel buckle; A horizontally extending groove is formed on one side of the pressing member, and a notch of the groove is open outwards; The vertical plate keel comprises: A third buckle slot, the slot of which is open downward to clamp the top of the vertical plate, one side of the third buckle slot is provided with a support plate extending horizontally to the bottom of the adjacent plate body to support the adjacent plate body upward, and the other side of the third buckle slot is provided with a fifth connection port; A third plug-in, the top of which is connected to a third expansion head, the third expansion head vertically extending upward to be inserted into the expansion insertion cavity, the bottom of the third plug-in connected to the top of the third buckle groove, the third plug-in provided with a sixth connection port for aligning with and penetrating the notch of the groove; The top of the vertical board is connected to the board body located above by the back-mounted seam keel and the vertical board keel buckle. The specific connection structure is: The second expansion head of the back-mounted seam keel is inserted into the expansion insertion cavity located above, and the second buckle groove of the back-mounted seam keel is connected to the plate body located above through the connecting assembly; The third buckle groove of the vertical plate keel is buckled on the top of the vertical plate, and the second locking piece passes through the fifth connecting port and screws the third buckle groove and the vertical plate together; the third expansion head of the vertical plate keel is inserted into the expansion insertion cavity where the second expansion plug is matched, and the third locking piece passes through the sixth connecting port and extends into the groove to screw the vertical plate keel and the back-mounted seam keel together, and the support plate supports the plate body located above upward.

7. A method for installing a ceiling device for indoor decoration according to any one of claims 3 to 6, characterized in that: The following steps are involved: Drilling the mounting hole on the back plate of the plate body; Put the pin bodies into the mounting holes one by one; Pressing the tube bodies of the expansion tubes into the mounting holes one by one; Insert the first buckle groove of the back-mounted keel or the second buckle groove of the back-mounted splicing keel into the corresponding tube body of the expansion tube one by one, and use the back-mounted keel in the middle of the plate body, and use the back-mounted splicing keel on the side where the plate body is connected to the vertical plate and at the splicing with the adjacent plate body. Insert the locking piece into the back-mounted keel and the corresponding expansion tube and pin body, and insert the locking piece into the back-mounted joint keel and the corresponding expansion tube and pin body; tighten the locking piece, the pin body moves upward and presses against the expansion tube, so that the back plate of the plate body is clamped between the buckle position outside the expansion tube and the back-mounted keel or the back-mounted joint keel, so that the plate body is connected to the back-mounted keel or the back-mounted joint keel; The first plug-in unit of the back-mounted keel and the second plug-in unit of the back-mounted seam keel are respectively inserted into the matching expansion insertion cavities.

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