An assembled ceiling structure applicable to low-rise buildings

Abstract

The present invention provides an assembled ceiling structure suitable for low-rise buildings, and belongs to the technical field of ceiling installation. The assembled ceiling structure suitable for low-rise buildings includes a connector, an adapter, a keel, a hanging member, and a decorative panel. The hanging member in the present invention is connected to the top of the keel, the first hanging part can be connected to keels of different heights, the first plug-in part is connected to the decorative panel, and the top of the second clamping part is connected to the bottom of the first clamping part. The structure is simple, the installation is convenient, the structure is compact, and the installation floor height is effectively reduced, and the floor height occupied is suitable for low-rise buildings.

Description

Technical Field

[0001] The present invention relates to the technical field of ceiling installation, and particularly relates to a prefabricated ceiling structure applicable to low-story buildings. Background Art

[0002] For existing buildings with low storeys, there are relatively strict requirements for the installation space of prefabricated ceilings. However, the existing ceiling systems occupy a large space and are not suitable for installation in low-story buildings. Summary of the Invention

[0003] The purpose of the present invention is to propose a prefabricated ceiling structure applicable to low-story buildings in view of the above deficiencies of the existing technologies.

[0004] The present invention proposes a prefabricated ceiling structure applicable to low-story buildings, which includes a connecting member, an adapter, a keel, a hanging member, and a decorative panel. The hanging member is connected to the top end of the keel. The adapter includes a first hanging portion that can be connected to keels at different heights and a first clamping portion connected to the bottom end of the first hanging portion. The connecting member includes a first insertion portion connected to the decorative panel and a second clamping portion connected to the top end of the first insertion portion. The top end of the second clamping portion is connected to the bottom end of the first clamping portion.

[0005] Further, a first insertion groove is provided at the side end of the decorative panel. The first insertion portion includes a first insertion plate and a first limiting plate connected to the top end of the first insertion plate. The first insertion plate is inserted into the first insertion groove, and the first limiting plate is used to limit the side end of the decorative panel.

[0006] Further, the first insertion portion further includes insertion protrusions provided on the first insertion plate.

[0007] Further, there are at least two decorative panels. The left and right ends of one first insertion plate are respectively inserted into the first insertion grooves on adjacent two decorative panels. The first limiting plate is connected to the middle of the first insertion plate. The insertion protrusions are two respectively provided on the left and right ends of the first insertion plate.

[0008] Further, the first clamping portion includes a second limiting plate and a third limiting plate connected to the bottom end of the second limiting plate. The third limiting plate is inclined upward from the end connected to the second limiting plate to the end far from the second limiting plate. The second clamping portion includes a first lifting plate lapped on the third limiting plate.

[0009] Further, the second clamping portion further includes a fourth limiting plate for limiting the top surface of the decorative panel and a fifth limiting plate for limiting the third limiting plate when the first lifting plate is lapped on the third limiting plate. The top end of the fifth limiting plate is connected to the first lifting plate, and the bottom end is connected to the fourth limiting plate.

[0010] Further, there are two symmetrically arranged first clamping portions, two symmetrically arranged first lifting plates, and two symmetrically arranged fifth limiting plates. The first clamping portion further includes a first hook groove formed by a second limiting plate and a third limiting plate. The second clamping portion further includes two first reinforcing plates and a second reinforcing plate with two ends respectively connected to the two first reinforcing plates. The two first reinforcing plates are respectively inserted into the first hook grooves in the two first clamping portions and are respectively connected to one ends of the two first lifting plates far from the fifth limiting plate.

[0011] Further, an installation groove is formed through the side surface of the keel. The first hanging portion includes a bendable first lapping plate and a first bottom plate inserted into the installation groove. The first part of the first lapping plate close to the first bottom plate is located on one side of the keel, and the second part far from the first bottom plate can be bent according to the height of the keel to lap on the top surface of the keel. The first lapping plate is connected to the top end of the first bottom plate, and the second limiting plate is connected to the bottom end of the first bottom plate.

[0012] Further, the first bottom plate includes a first center line and a second center line perpendicular to each other. There are two first lapping plates symmetrically arranged with respect to the first center line, and two first clamping portions symmetrically arranged with respect to the second center line.

[0013] Further, a fixing hole is formed through the top surface of the keel. The hanging member includes a suspender rod, a threaded portion provided at the lower part of the suspender rod, and two fastening nuts. The bottom end of the suspender rod passes through the fixing hole, so that the first part of the threaded portion is located above the fixing hole and the second part is located below the fixing hole. The first fastening nut is screwed onto the first part of the threaded portion, and the second fastening nut is screwed onto the second part of the threaded portion.

[0014] The prefabricated ceiling structure suitable for low-rise buildings of the present invention has the following beneficial effects:

[0015] The hanging member is connected to the top end of the keel. The first hanging portion can be connected to keels of different heights. The first inserting portion is connected to the decorative panel. The top end of the second clamping portion is connected to the bottom end of the first clamping portion. The structure is simple, the installation is convenient, the structure is compact, and the installation floor height occupation is effectively reduced, which is suitable for low-rise buildings. Description of the Drawings

[0016] The accompanying drawings incorporated herein and constituting a part of the specification illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention. In these drawings, like reference numerals are used to represent like elements. The drawings in the following description are some embodiments of the present invention, not all embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 Schematic diagram of a prefabricated ceiling structure applicable to low-rise buildings in an embodiment of the present invention

[0018] Figure 2 In a prefabricated ceiling structure applicable to low-rise buildings in an embodiment of the present invention Figure 1 Enlarged view of part A;

[0019] Figure 3 In a prefabricated ceiling structure applicable to low-rise buildings in an embodiment of the present invention Figure 1 Enlarged view of part B;

[0020] Figure 4 In a prefabricated ceiling structure applicable to low-rise buildings in an embodiment of the present invention Figure 1 Enlarged view of part C;

[0021] Figure 5 Partial first side view of a prefabricated ceiling structure applicable to low-rise buildings in an embodiment of the present invention;

[0022] Figure 6 Partial second side view of a prefabricated ceiling structure applicable to low-rise buildings in an embodiment of the present invention;

[0023] Figure 7 Partial side view of a prefabricated ceiling structure applicable to low-rise buildings in an embodiment of the present invention when no hanging parts are provided;

[0024] Figure 8 Partial structural schematic diagram of a connecting member in a prefabricated ceiling structure applicable to low-rise buildings in an embodiment of the present invention;

[0025] Figure 9 Front view of a connecting member in a prefabricated ceiling structure applicable to low-rise buildings in an embodiment of the present invention;

[0026] Figure 10 Schematic diagram of the structure of a first overlapping plate in a prefabricated ceiling structure applicable to low-rise buildings in an embodiment of the present invention when not bent;

[0027] Figure 11Schematic diagram of the structure when the first overlapping plate is bent in an assembled ceiling structure applicable to low-rise buildings according to an embodiment of the present invention;

[0028] Figure 12 First side view of the first overlapping plate when it is not bent in an assembled ceiling structure applicable to low-rise buildings according to an embodiment of the present invention;

[0029] Figure 13 Second side view of the first overlapping plate when it is not bent in an assembled ceiling structure applicable to low-rise buildings according to an embodiment of the present invention;

[0030] Figure 14 Partial schematic diagram of the structure when the adapter is connected to the keel and the connector is connected to the adapter in an assembled ceiling structure applicable to low-rise buildings according to an embodiment of the present invention.

[0031] In the figure: 1 - decorative panel, 11 - first insertion slot, 2 - connector, 21 - first insertion part, 211 - first insertion plate, 212 - first limiting plate, 213 - insertion protrusion, 22 - second clamping part, 221 - first lifting plate, 222 - fourth limiting plate, 223 - fifth limiting plate, 224 - first reinforcing plate, 225 - second reinforcing plate, 3 - adapter, 31 - first hanging part, 311 - first overlapping plate, 312 - first bottom plate, 313 - first side edge, 314 - second side edge, 32 - first clamping part, 321 - second limiting plate, 322 - third limiting plate, 323 - first hook slot, 4 - keel, 41 - installation slot, 42 - fixing hole, 5 - hanging member, 51 - suspension rod, 52 - fastening nut. Detailed implementation manners

[0032] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention. It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other arbitrarily.

[0033] Please refer to Figures 1 to 14。An assembled ceiling structure applicable to low-rise buildings according to an embodiment of the present invention includes a connecting member 2, an adapter 3, a keel 4, a hanging member 5, and a decorative panel 1. The hanging member 5 is connected to the top end of the keel 4. The adapter 3 includes a first hanging portion 31 that can be connected to keels 4 at different heights and a first clamping portion 32 connected to the bottom end of the first hanging portion 31. The connecting member 2 includes a first insertion portion 21 connected to the decorative panel 1 and a second clamping portion 22 connected to the top end of the first insertion portion 21. The top end of the second clamping portion 22 is connected to the bottom end of the first clamping portion 32.

[0034] Here, the first insertion portion 21 is connected to the decorative panel 1, so that the connecting member 2 hoists the decorative panel 1. The hanging member 5 is connected to the top end of the keel 4, thereby hoisting the keel 4. The first hanging portion 31 is connected to keels 4 at different heights, facilitating the connection of the adapter 3 to keels 4 of different specifications, with a wide range of applicability. The top end of the second clamping portion 22 is connected to the bottom end of the first clamping portion 32 to complete the installation, with a compact structure and a relatively low occupied floor height.

[0035] A first insertion groove 11 may be provided at the side end of the decorative panel 1. The first insertion portion 21 includes a first insertion plate 211 and a first limiting plate 212 connected to the top end of the first insertion plate 211. The first insertion plate 211 is inserted into the first insertion groove 11, and the first limiting plate 212 is used to limit the side end of the decorative panel 1.

[0036] Specifically, the first insertion plate 211 is inserted into the first insertion groove 11, thereby tightly connecting the first insertion portion 21 and the decorative panel 1. When the first insertion plate 211 is inserted into the first insertion groove 11, the first limiting plate 212 can limit the side end of the decorative panel 1, improving the installation efficiency of the decorative panel 1 and the first insertion plate 211. The first insertion plate 211 is horizontally arranged, and the first limiting plate 212 can be perpendicular to the first insertion plate 211.

[0037] The first insertion portion 21 may further include an insertion protrusion 213 provided on the first insertion plate 211.

[0038] Specifically, the end of the first insertion plate 211 is inserted into the first insertion groove 11 on the decorative panel 1, and the insertion protrusion 213 can be in interference fit with the first insertion groove 11, improving the connection stability between the first insertion plate 211 and the first insertion groove 11.

[0039] There are at least two decorative panels 1. The left and right ends of one first insertion plate 211 are respectively inserted into the first insertion grooves 11 on adjacent two decorative panels 1. The first limiting plate 212 is connected to the middle of the first insertion plate 211, and the insertion protrusions 213 are two respectively provided at the left and right ends of the first insertion plate 211.

[0040] Specifically, when the two end portions of the first plugging board 211 are respectively plugged into the first plugging grooves 11 of two adjacent decorative panels 1, the first limiting plate 212 can limit the side ends of the two adjacent decorative panels 1, thereby improving the installation efficiency of the decorative panel 1 and the first plugging board 211. The two plugging protrusions 213 can be arranged in the same direction, that is, both of the two plugging protrusions 213 can protrude upward, or both of the two plugging protrusions 213 can protrude downward.

[0041] The first clamping portion 32 may include a second limiting plate 321 and a third limiting plate 322 connected to the bottom end of the second limiting plate 321. The third limiting plate 322 is inclined upward from the end connected to the second limiting plate 321 to the end far away from the second limiting plate. The second clamping portion 22 includes a first lifting plate 221 lapped on the third limiting plate 322.

[0042] Specifically, the third limiting plate 322 and the second limiting plate 321 form a hook-shaped structure similar to a fishhook. The first lifting plate 221 is lapped on the third limiting plate 322, so that the first clamping portion 32 can support the first lifting plate 221, enabling the keel 4 to lift the first lifting plate 221, the keel 4 to lift the connecting member 2, and further to lift the decorative panel 1.

[0043] The second clamping portion 22 may further include a fourth limiting plate 222 for limiting the top surface of the decorative panel 1 and a fifth limiting plate 223 for limiting the third limiting plate 322 when the first lifting plate 221 is lapped on the third limiting plate 322. The top end of the fifth limiting plate 223 is connected to the first lifting plate 221, and the bottom end is connected to the fourth limiting plate 222.

[0044] Specifically, when the end portion of the first plugging board 211 is plugged into the first plugging groove 11 on the adjacent decorative panel 1, the fourth limiting plate 222 can limit the top surface of the decorative panel 1, thereby improving the connection stability between the first plugging board 211 and the decorative panel 1. The fifth limiting plate 223 can limit the third limiting plate 322, thereby improving the connection stability between the first lifting plate 221 and the first clamping portion 32.

[0045] Specifically, from the end of the first lifting plate 221 connected to the fifth limiting plate 223 to the end far away from the fifth limiting plate 223, it can be arranged to incline downward along the axial direction away from the first limiting plate 212, and the angle between the first lifting plate 221 and the first limiting plate 212 is an acute angle. The fifth limiting plate 223 can be parallel to the first limiting plate 212. The fourth limiting plate 222 is parallel to the first plugging board 211.

[0046] The first clamping part 32 can be two symmetrically arranged ones, the first lifting plate 221 is two symmetrically arranged ones, the fifth limiting plate 223 is two symmetrically arranged ones. The first clamping part 32 further includes a first hook groove 323 formed by a second limiting plate 321 and a third limiting plate 322. The second clamping part 22 further includes two first reinforcing plates 224 and a second reinforcing plate 225 with two ends respectively connected to the two first reinforcing plates 224. The two first reinforcing plates 224 are respectively inserted into the first hook grooves 323 in the two first clamping parts 32 and are respectively connected to one ends of the two first lifting plates 221 far away from the fifth limiting plate 223.

[0047] Specifically, the first limiting plate 212 is connected to the middle of the fourth limiting plate 222, and the bottom ends of the two fifth limiting plates 223 are respectively connected to the left and right side ends of the fourth limiting plate 222. The two first lifting plates 221 are respectively lapped on the corresponding third limiting plates 322, thereby improving the connection stability between the connecting part 2 and the adapter part 3.

[0048] Specifically, the combined action of the two first reinforcing plates 224 and the second reinforcing plate 225 can improve the overall strength of the second clamping part 22, and further improve the connection stability between the first clamping part 32 and the second clamping part 22. The first reinforcing plate 224 can be inserted into the first hook groove 323. The two first reinforcing plates 224 are symmetrically arranged. The first reinforcing plate 224 is connected to one end of the first lifting plate 221 far away from the fifth limiting plate 223, and the two ends of the second reinforcing plate 225 are respectively connected to the two first reinforcing plates 224.

[0049] Specifically, the end of the first reinforcing plate 224 connected to the first lifting plate 221 to the end connected to the first reinforcing plate 224 can be arranged to be inclined upward along the axis direction close to the first limiting plate 212. The second reinforcing plate 225 is parallel to the fourth limiting plate 222. The angle between the first reinforcing plate 224 and the first lifting plate 221 is an acute angle. The first reinforcing plate 224 is inclined to avoid interference with the side wall of the corresponding hook-shaped structure and reduce stability. The second reinforcing plate 225 is parallel to the first insertion plate 211 to avoid the second reinforcing plate 225 protruding upward and affecting interference with the adapter part 3.

[0050] Specifically, the first limiting plate 212 is perpendicular to the first insertion, and the fourth limiting plate 222 is parallel to the first insertion plate 211. Then, the fourth limiting plate 222, the first limiting plate 212, and the first insertion plate 211 form an I-shaped structure. The top and bottom ends of the first limiting plate 212 are respectively connected to the fourth limiting plate 222 and the first insertion plate 211. The length of the fourth limiting plate 222 can be greater than the length of the first insertion plate 211. The second reinforcing plate 225 is parallel to the fourth limiting plate 222, and the length of the second reinforcing plate 225 is greater than the length of the fourth limiting plate 222. The fifth limiting plate 223 is perpendicular to the end connected to the fourth limiting plate 222, and the first lifting plate 221 is connected to the top end of the fifth limiting plate 223. Then, the first lifting plate 221 and the fifth limiting plate 223 are respectively arranged on one side of the first insertion plate 211.

[0051] An installation groove 41 can be penetrated through the side surface of the keel 4. The first hanging portion 31 includes a first overlapping plate 311 that can be bent and a first bottom plate 312 inserted into the installation groove 41. The first part of the first overlapping plate 311 close to the first bottom plate 312 is located on one side of the keel 4, and the second part far from the first bottom plate 312 can be bent according to the height of the keel 4 to overlap on the top surface of the keel 4. The first overlapping plate 311 is connected to the top end of the first bottom plate 312, and the second limiting plate 321 is connected to the bottom end of the first bottom plate 312.

[0052] Specifically, a plurality of installation grooves 41 can be equidistantly arranged on the keel 4. The installation grooves 41 can position the first bottom plate 312, thereby positioning the position of the first hanging portion 31 installed on the keel 4. The first bottom plate 312 is inserted into the installation groove 41, and the side edge of the first bottom plate 312 far from the first overlapping plate 311 abuts against the side wall of the installation groove 41.

[0053] Specifically, the first overlapping plate 311 abuts against the side surface of the keel 4. According to the height of the keel 4, the first overlapping plate 311 is bent at the corresponding position, so that the first part of the first overlapping plate 311 is located on one side of the side surface of the keel 4, and the second part overlaps on the top surface of the keel 4, thereby connecting the first hanging portion 31 to the keel 4. According to the distance from the installation groove 41 on different keels 4 to the top surface of the keel 4, the bending position on the first overlapping plate 311 can be different. Then, the lengths of the first part and the second part on the first overlapping plate 311 can be adjusted. The width of the first part on the first overlapping plate 311 can match the distance from the installation groove 41 on the keel 4 to the top surface of the keel 4. The width of the second part on the first overlapping plate 311 can be adjusted to an appropriate length. The width of the second part can be greater than 1 / 3 of the width of the top surface of the keel 4 and less than 1 / 2 of the width of the top surface of the keel 4, improving the stability of the connection between the first overlapping plate 311 and the keel 4. The first clamping portion 32 and the first hanging portion 31 can be integrally formed, and the first insertion portion 21 and the second clamping portion 22 can be integrally formed.

[0054] Specifically, the keel 4 is placed on the first bottom plate 312. The first bottom plate 312 limits the top wall of the mounting groove 41 on the keel 4. The width of the first bottom plate 312 can match the width of the mounting groove 41, so that the first overlapping plate 311 can abut against the side surface of the keel 4. The first overlapping plate 311 is bent at a position corresponding to the top surface of the keel 4, so that the second part on the first overlapping plate 311 overlaps the top surface of the keel 4. The first overlapping plate 311 and the first bottom plate 312 are integrally formed by bending a plate towards the center of the top surface of the first bottom plate 312 to form the first overlapping plate 311.

[0055] Specifically, the second part of the first overlapping plate 311 away from the first bottom plate 312 can be bent to be parallel to the first bottom plate 312. The first bottom plate 312 can be parallel to the first plug-in plate 211. Bending the second part of the first overlapping plate 311 to be parallel to the first bottom plate 312 can better limit the top surface of the keel 4, so that the first hanging part 31 overlaps the keel 4.

[0056] Specifically, the second limiting plate 321 is connected to the bottom end of the first bottom plate 312. The third limiting plate 322 is inclined upward from the end connected to the second limiting plate 321 to the end away from the second limiting plate 321. The second limiting plate 321 and the first bottom plate 312 can be integrally formed by bending a plate towards the center of the bottom surface of the first bottom plate 312 to form the second limiting plate 321. The second limiting plate 321 and the third limiting plate 322 can be integrally formed by bending a plate towards the side surface of the second limiting plate 321 close to the first limiting plate 212 to form the third limiting plate 322.

[0057] Specifically, the first bottom plate 312 can include an adjacent first side edge 313 and a second side edge 314. The bottom end of the first overlapping plate 311 is connected to the first side edge 313 or the third part of the first bottom plate 312 close to the first side edge 313. The top end of the second limiting plate 321 is connected to the second side edge 314 or the fourth part of the first bottom plate 312 close to the second side edge 314.

[0058] The first bottom plate 312 can include a first center line and a second center line that are perpendicular to each other. There are two first overlapping plates 311 symmetrically arranged with respect to the first center line, and there are two first clamping parts 32 symmetrically arranged with respect to the second center line.

[0059] Specifically, there can be two first side edges 313 arranged in parallel, and there can be two second side edges 314 arranged in parallel. The first center line is the connection line of the center points of the two first side edges 313, and the second center line is the connection line of the center points of the two second side edges 314. When the first side edge 313 is perpendicular to the second side edge 314, the first center line is perpendicular to the second center line. The first overlapping plates 311 are two symmetrically arranged with respect to the first center line. Then, the first parts on the two first overlapping plates 311 respectively abut against the two side surfaces of the keel 4, and the second parts are respectively bent to abut against the top surface of the keel 4. During production, the total width of the first overlapping plates 311 is controlled such that the maximum value of the widths of the second parts on the two first overlapping plates 311 is less than the width of the top surface of the keel 4, and the minimum value is greater than half of the width of the top surface of the keel 4. That is, when the second parts on the first overlapping plates 311 respectively overlap the top surface of the keel 4, there is an installation gap between the second parts of the two first overlapping plates 311. The size of the installation gap is controlled to avoid interference between the two first overlapping plates 311 and excessive material waste due to too small an installation gap, and at the same time avoid the two first overlapping plates 311 being unable to stably overlap on the keel 4 due to too large an installation gap.

[0060] Specifically, there can be two first clamping portions 32 symmetrically arranged with respect to the second center line. Then, the two first clamping portions 32 are respectively connected to the two second clamping portions 22, providing the stability of the connection between the adapter 3 and the connector 2, and at the same time making the keel 4 and the connector 2 perpendicular to each other, enhancing the stability of the ceiling installation.

[0061] Specifically, the first overlapping plate 311 can be perpendicular to the first bottom plate 312. The two first overlapping plates 311 and the first bottom plate 312 enclose a limiting groove. The first overlapping plate 311 is perpendicular to the first bottom plate 312, so as to snap the keel 4 into the limiting groove. After adjusting the position, the two first overlapping plates 311 are respectively bent towards the direction close to the keel 4, so as to hold the keel 4 tightly.

[0062] Specifically, the second limiting plate 321 can be perpendicular to the first bottom plate 312. The second clamping portion 22 is clamped by the first hook groove 323, improving the stability of the connection between the adapter 3 and the connector 2.

[0063] Specifically, the angle between the third limiting plate 322 and the second limiting plate 321 can be 15° to 75°, and the projected length of the third limiting plate 322 on the second limiting plate 321 is 1 / 4 to 3 / 4 of the length of the second limiting plate 321. The angle between the third limiting plate 322 and the second limiting plate 321 can be 15° to 75°, so that the first hook groove 323 can lift the connecting member 2; the projected length of the third limiting plate 322 on the second limiting plate 321 is 1 / 4 to 3 / 4 of the length of the second limiting plate 321, so that there is an insertion gap between the third limiting plate 322 and the first limiting plate 212, which facilitates the insertion of the top end of the second clamping portion 22 into the first hook groove 323. At the same time, it ensures that the third limiting plate 322 has an appropriate length, high strength, and improves the connection stability between the first hook groove 323 and the second clamping portion 22.

[0064] Fixing holes 42 can be provided through the top surface of the keel 4. The hanging member 5 includes a suspension rod 51, a threaded portion provided at the lower part of the suspension rod 51, and two fastening nuts 52; the bottom end of the suspension rod 51 passes through the fixing hole 42, so that the first part of the threaded portion is above the fixing hole 42 and the second part is below the fixing hole 42. The first fastening nut 52 is screwed onto the first part of the threaded portion, and the second fastening nut 52 is screwed onto the second part of the threaded portion.

[0065] Specifically, there can be multiple fixing holes 42 and multiple hanging members 5. The two fastening nuts 52 respectively abut against the keel 4, thereby tightly connecting the suspension rod 51 and the keel 4. The hanging member 5 can also include two gaskets. Mounting holes are provided through the two gaskets. One gasket is arranged between one fastening nut 52 and the keel 4, and the other gasket is arranged between the keel 4 and the second fastening nut 52. The bottom end of the suspension rod 51 sequentially passes through the mounting hole on one gasket, the fixing hole 42, and the mounting hole on the other gasket. After leveling the keel 4, the two fastening nuts 52 are tightened respectively; the adapter 3 is snapped into the mounting groove 41 on the keel 4. After adjusting the position, the first overlapping plate 311 is bent to hold the keel 4 tightly. The lower part of the adapter 3 is connected to the connecting member 2, and the connecting member 2 is connected to two adjacent decorative panels 1. The connecting member 2 is of an I-shaped structure. The keel 4 is connected to the adapter 3, and the adapter 3 is connected to the connecting member 2, which enhances the structural strength, is convenient for installation, and reduces the installation occupied space.

[0066] The content described above can be implemented alone or in various combinations, and these variant ways are all within the protection scope of the present invention.

[0067] It should be noted that in the description of this application, the terms "upper end", "lower end", and "bottom end" indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this application is usually placed during use. These are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to this application. Moreover, the term "comprise", "include" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the phrase "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An assembled ceiling structure applicable to low-rise buildings, characterized in that: It includes a connecting piece (2), an adapter piece (3), a keel (4), a hanging piece (5), and a decorative panel (1). The hanging piece (5) is connected to the top end of the keel (4). The adapter piece (3) includes a first hanging part (31) that can be connected to keels (4) at different heights and a first clamping part (32) connected to the bottom end of the first hanging part (31). The connecting piece (2) includes a first plugging part (21) connected to the decorative panel (1) and a second clamping part (22) connected to the top end of the first plugging part (21). The top end of the second clamping part (22) is connected to the bottom end of the first clamping part (32); the first clamping part (32) includes a second limiting plate (321) and a third limiting plate (322) connected to the bottom end of the second limiting plate (321). The third limiting plate (322) is inclined upward from the end connected to the second limiting plate (321) to the end far from the second limiting plate. The second clamping part (22) includes a first lifting plate (221) lapped on the third limiting plate (322); the second clamping part (22) further includes a fourth limiting plate (222) for limiting the top surface of the decorative panel (1) and a fifth limiting plate (223) for limiting the third limiting plate (322) when the first lifting plate (221) is lapped on the third limiting plate (322). The top end of the fifth limiting plate (223) is connected to the first lifting plate (221), and the bottom end is connected to the fourth limiting plate (222); the first clamping parts (32) are two symmetrically arranged, the first lifting plates (221) are two symmetrically arranged, the fifth limiting plates (223) are two symmetrically arranged. The first clamping part (32) further includes a first hook groove (323) formed by the second limiting plate (321) and the third limiting plate (322). The second clamping part (22) further includes two first reinforcing plates (224) and a second reinforcing plate (225) with two ends respectively connected to the two first reinforcing plates (224). The two first reinforcing plates (224) are respectively inserted into the first hook grooves (323) in the two first clamping parts (32) and are respectively connected to the ends of the two first lifting plates (221) far from the fifth limiting plate (223); an installation groove (41) is formed through the side surface of the keel (4). The first hanging part (31) includes a first lapping plate (311) that can be bent and a first bottom plate (312) inserted into the installation groove (41). The first part of the first lapping plate (311) close to the first bottom plate (312) is located on one side of the keel (4), and the second part far from the first bottom plate (312) can be bent according to the height of the keel (4) to lap on the top surface of the keel (4). The first lapping plate (311) is connected to the top end of the first bottom plate (312), and the second limiting plate (321) is connected to the bottom end of the first bottom plate (312).

2. The assembled ceiling structure applicable to low-rise buildings according to claim 1, characterized in that: A first insertion groove (11) is provided at the side end of the decorative panel (1). The first insertion portion (21) includes a first insertion plate (211) and a first limiting plate (212) connected to the top end of the first insertion plate (211). The first insertion plate (211) is inserted into the first insertion groove (11), and the first limiting plate (212) is used to limit the side end of the decorative panel (1).

3. The prefabricated ceiling structure applicable to low-rise buildings according to claim 2, characterized in that: The first insertion portion (21) further includes an insertion protrusion (213) provided on the first insertion plate (211).

4. The prefabricated ceiling structure applicable to low-rise buildings according to claim 3, characterized in that: There are at least two decorative panels (1). The left and right ends of one first insertion plate (211) are respectively inserted into the first insertion grooves (11) on two adjacent decorative panels (1). The first limiting plate (212) is connected to the middle of the first insertion plate (211). The insertion protrusions (213) are two respectively provided on the left and right ends of the first insertion plate (211).

5. The prefabricated ceiling structure applicable to low-rise buildings according to claim 1, characterized in that: The first bottom plate (312) includes a first center line and a second center line that are perpendicular to each other. There are two first overlapping plates (311) symmetrically arranged with respect to the first center line, and two first clamping portions (32) symmetrically arranged with respect to the second center line.

6. The prefabricated ceiling structure applicable to low-rise buildings according to claim 1 or 2 or 3 or 4, characterized in that: Fixing holes (42) are penetratingly provided on the top surface of the keel (4). The hanging member (5) includes a suspension rod (51), a threaded portion provided at the lower part of the suspension rod (51), and two fastening nuts (52); the bottom end of the suspension rod (51) passes through the fixing hole (42), so that the first part of the threaded portion is above the fixing hole (42) and the second part is below the fixing hole (42). The first fastening nut (52) is screwed onto the first part of the threaded portion, and the second fastening nut (52) is screwed onto the second part of the threaded portion.

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