An assembled bathroom ceiling and its installation method

Abstract

The present invention relates to the technical field of assembled ceilings, and particularly to an assembled bathroom ceiling and its installation method. Such an assembled bathroom ceiling is used in an installation space having a top wall and side walls, and wall panels are provided on the side walls; the ceiling includes an integral ceiling panel connected to the top wall through a low-position keel, the integral ceiling panel includes a trimming end and a heightening end, the trimming end is connected to the side wall through a trimming member, and the heightening end is connected to the side wall through a heightening member. In this application, the heightening of the high-position ceiling panel is achieved through the wall panel heightening plate and the ceiling heightening plate, and a backlight light slot is formed among the wall panel heightening plate, the high-position ceiling panel, and the ceiling heightening plate, and the construction of the backlight light slot structure is completed without reducing the installation height of the integral ceiling panel.

Description

Technical Field

[0001] The present invention relates to the technical field of assembled suspended ceilings, and particularly to an assembled bathroom suspended ceiling and an installation method thereof. Background Art

[0002] Ceiling decoration is a commonly used decoration method in interior design, which can increase the sense of hierarchy of the indoor space and play a role in beautifying the decoration. At present, the decoration industry is developing towards the direction of industrialization, modularization and assembled installation. As the name implies, assembled decoration means that each component required for decoration is produced and completed in the factory, and then transported to the decoration site for combined installation, eliminating the traditional operations of measuring and cutting each component on the decoration site. The construction is simpler and more convenient. Adopting assembled installation in the process of kitchen and bathroom suspended ceilings can greatly improve the construction efficiency of the decoration site, and the construction site is cleaner and more beautiful, without generating too much decoration material waste, which is a more green and environmentally friendly decoration construction form.

[0003] In an assembled suspended ceiling with a backlight trough structure, in order to achieve the backlight effect, lamps are usually installed on the back of the end of the suspended ceiling board. At this time, in order to facilitate the connection of the suspended ceiling board and not affect the lighting effect of the lamps, a profile with an installation height higher than that of the suspended ceiling board is usually set. For example, a patent document with the publication number CN210342405U discloses such an assembled partition wall suspended ceiling structure, including a floor slab and a floor. Assembled partition walls are connected to both sides between the floor slab and the floor. The assembled partition wall includes an outer wallboard, an inner wallboard and a keel framework arranged between the outer wallboard and the inner wallboard. A composite suspended ceiling is arranged between the upper ends of a pair of the inner wallboards. The composite suspended ceiling includes a pair of primary suspended ceiling edge boards, a pair of horizontal screws, a pair of closing vertical boards and a secondary suspended ceiling board. One end of the primary suspended ceiling edge board is connected to the upper end of the inner wallboard, and the other end faces upward and is connected to the floor slab through a horizontal screw. The middle part of the primary suspended ceiling edge board faces downward and is connected to the end of the secondary suspended ceiling board through a closing vertical board. A side groove for installing lamps or curtains is formed between the primary suspended ceiling edge board and the inner wallboard below the primary suspended ceiling edge board. One end of the secondary suspended ceiling board extends into the side groove to form a lamp trough suspended ceiling board. A closing line board is arranged at the end of the lamp trough suspended ceiling board, and a lamp belt is arranged upward in the middle.

[0004] Among them, the installation height of the primary suspended ceiling edge board needs to be higher than that of the secondary suspended ceiling board, and the primary suspended ceiling edge board needs to be connected to the wallboard, and its horizontal plane is flush with the top of the wallboard, so that the installation height of the secondary suspended ceiling board, which is the main structure of the suspended ceiling, will be reduced, resulting in the problem that the suspended ceiling occupies more floor height and the available height for activities indoors is lower. In addition, based on its snap-fit installation method of the closing strip and the hook, there is also the problem of inconvenient installation of the secondary suspended ceiling board. Summary of the Invention

[0005] The present invention aims to solve the above-mentioned problem and provides an easy-to-install assembled toilet ceiling and an installation method thereof, so as to realize the formation of a reflective lamp trough without reducing the installation height of the ceiling board.

[0006] The technical solution to the problem of the present invention is to first provide an assembled toilet ceiling, which is used in an installation space having a top wall and a side wall, wherein the side wall is provided with a wall panel; the ceiling comprises an integral ceiling panel connected to the top wall through a low-position keel, wherein the integral ceiling panel comprises a trimming end and a heightening end, wherein the trimming end is connected to the side wall through a trimming piece, and the heightening end is connected to the side wall through a heightening piece;

[0007] The edge trimming member includes a wall panel connection structure connected to the wall panel and a ceiling panel connection structure connected to the edge trimming end; the ceiling panel connection structure is Z-shaped, including a limiting portion abutting against the side of the edge trimming end, a receiving portion provided at one end of the limiting portion for the edge trimming end to overlap, and a reinforcing portion provided at the other end of the limiting portion and flush with the back of the integral ceiling panel; the low-position keel includes a protruding portion protruding from the edge trimming end, and the protruding portion overlaps the reinforcing portion;

[0008] The heightening component includes a high-position ceiling panel connected to the top wall through a high-position keel, one end of the high-position ceiling panel is provided with a wall panel heightening panel, and the other end is provided with a ceiling heightening panel; the wall panel heightening panel is flush with and connected to the wall panel, and the ceiling heightening panel is connected to a side of the integral ceiling panel close to the top wall; a reflective lamp groove is formed between the ceiling heightening panel, the high-position ceiling panel and the wall panel heightening panel.

[0009] As a preferred embodiment of the present invention, the low-position keel is in a "J" shape, including two folded edge portions for connecting with the overall ceiling panel, the two folded edge portions are respectively connected with vertical portions, and the two vertical portions are connected by a connecting portion; the ceiling heightening plate abuts against the folded edge portions.

[0010] As a preferred embodiment of the present invention, the integral ceiling panel and the ceiling heightening panel are connected via an integrally formed reinforcement member, and the reinforcement member includes a first connection portion parallel to and connected to the integral ceiling panel and a second connection portion parallel to and connected to the ceiling heightening panel.

[0011] As a preferred embodiment of the present invention, it also includes a reinforcing screw, which passes through the second connecting portion, the ceiling heightening plate, and the vertical portion of the low-position keel in sequence.

[0012] As a preference of the present invention, the wall panel heightening board is connected to the wall panel through a connecting member. The connecting member includes a flush board, and both the wall panel and the wall panel heightening board are in contact with the flush board; the connecting member further includes a fixing board connected to the flush board, and the fixing board is connected to the top surface of the wall panel; the connecting member further includes a limiting board and a reinforcing board disposed on the fixing board. One side of the wall panel heightening board is in contact with the flush board, and the other side is in contact with the limiting board. One side of the wall panel is in contact with the flush board, and the other side is in contact with the reinforcing board.

[0013] As a preference of the present invention, the wall panel connection structure includes a back connection portion in contact with the back surface of the wall panel, a top connection portion in contact with the top surface of the wall panel, and a front connection portion connected to the front surface of the wall panel; the front connection portion is connected to the reinforcing portion.

[0014] As a preference of the present invention, a tightening block is provided between the front connection portion and the front surface of the wall panel. One end of the tightening block is in contact with the front surface of the wall panel, and the other end is connected to the front connection portion.

[0015] As a preference of the present invention, the horizontal plane where the tightening block is located is higher than the horizontal plane where the reinforcing portion is located.

[0016] As a preference of the present invention, a support board is provided on the front surface of the wall panel, and the top surface of the support board is in contact with the tightening block.

[0017] Another object of the present invention is to provide an installation method for an assembled bathroom ceiling, including the following steps:

[0018] S1. Install the edge trim member and the heightening member on the side wall respectively;

[0019] S2. Lift the overall ceiling board so that the protruding portion of the low-position keel overlaps on the reinforcing portion, and connect the overall ceiling board to the ceiling heightening board.

[0020] The beneficial effects of the present invention:

[0021] 1. In the present application, the heightening of the high-position ceiling board is achieved through the wall panel heightening board and the ceiling heightening board. A backlight light slot is formed among the wall panel heightening board, the high-position ceiling board, and the ceiling heightening board. The construction of the backlight light slot structure is completed without reducing the installation height of the overall ceiling board.

[0022] 2. In the present application, in addition to the functions of heightening and forming a backlight light slot, the wall and ceiling heightening structure naturally forms a trimming structure between the overall ceiling board and the side wall. There is no need to further install an edge trim member for the ceiling, which improves the simplicity of the ceiling installation and reduces the cost.

[0023] 3. In the present application, a lapped trimming structure is adopted, and the installation operation is relatively simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a front view of a prefabricated toilet ceiling;

[0025] Figure 2 It is a structural diagram of an assembled toilet ceiling;

[0026] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 It is a schematic diagram of the installation of the edge trim in the assembled bathroom ceiling;

[0028] Figure 5 It is a structural diagram of the edge trimming components in an assembled bathroom ceiling;

[0029] Figure 6 It is a schematic diagram of the installation of the heightening components in the assembled bathroom ceiling;

[0030] Figure 7 It is a structural schematic diagram of the connecting parts in the assembled toilet ceiling;

[0031] In the figure: an integral ceiling panel 1, an edge trimming end 11, a heightening end 12, a lamp 13, a low-position keel 2, a folded edge portion 21, a wall panel 3, a support plate 31, an edge trimming piece 4, a limiting portion 41, a receiving portion 42, a reinforcing portion 43, a back connecting portion 44, a top connecting portion 45, a front connecting portion 46, a tightening block 47, a heightening piece 5, a high-position ceiling panel 51, a ceiling heightening plate 52, a wall panel heightening plate 53, a reinforcing screw 54, a high-position keel 6, a flush plate 71, a fixing plate 72, a limiting plate 73, and a reinforcing plate 74. DETAILED DESCRIPTION

[0032] The following are specific implementations of the present invention, and in conjunction with the accompanying drawings, the technical solution of the present invention is further described, but the present invention is not limited to these embodiments.

[0033] An assembled toilet ceiling, such as Figure 2 As shown, it is used in an installation space having a top wall, a pair of opposite first side walls, a pair of opposite second side walls, and the first side wall and the second side wall are substantially vertical. The first side wall and the second side wall are collectively referred to as side walls, and a wall panel 3 is installed on each side wall. In this embodiment, the first side wall and the second side wall are not shown in the figure. Figure 1 In the figure, the left and right wall panels 3 are both wall panels arranged on the second side wall; Figure 2Among them, the front and rear wall panels 3 are both wall panels arranged on the first side wall. The wall panel 3 can be connected to the side wall in any way, such as by gluing, dry hanging, screw connection, etc. In this embodiment, the wall panel 3 is made of a material with a certain support hardness, such as gypsum board, ceramic tile, etc. The wall panel 3 is installed on the side wall by means of screws and adhesive-assisted dry hanging. For example, first, profiles with a groove structure are nailed into the side wall by screws, and profiles with a plug structure are nailed into the back of the wall panel 3 by screws. The installation is achieved through the cooperation of the groove and the plug. At the same time, an adhesive can be coated between the groove and the plug to further improve the strength. In addition, profiles for fixing the bottom end of the wall panel 3 can also be arranged on the ground of the installation space, such as U-shaped profiles. The bottom plate of the U-shaped profile is nailed into the ground by screws, and the bottom end of the wall panel 3 is inserted into its U-shaped groove. The height of the wall panel 3 does not exceed the height of the side wall, and the specific height of the wall panel 3 is set according to the installation height of the subsequent ceiling.

[0034] The ceiling is mainly an integral structure formed by splicing several ceiling panels and is installed on the top of the installation space. Based on the need for a backlight trough, the ceiling is in the form of a stepped ceiling. According to the different relative heights, in this embodiment, the low-position ceiling panel that plays the main ceiling role is called the integral ceiling panel 1, and the high-position ceiling panel that plays the role of the backlight trough is called the high-position ceiling panel 51. The length of the high-position ceiling panel 51 is greater than the distance between the end of the integral ceiling panel 1 and the wall panel 3.

[0035] The integral ceiling panel 1 is composed of several ceiling panels, and the integral ceiling panel 1 is connected to the top wall by a low-position keel 2. As Figure 2 shown, the length direction of the low-position keel 2 is parallel to the length direction of the ceiling panel. The number of low-position keels 2 arranged on the back of each ceiling panel is not limited, and one or two are sufficient. The structure of the low-position keel 2 is not restricted, and it can be square tube type, I-shaped, or channel-shaped. In this embodiment, a channel-shaped keel is adopted. As Figure 1 shown, that is, the low-position keel 2 includes two folding parts 21 that are respectively parallel to the ceiling panel and are connected or welded by screws. Two vertical parts are respectively connected to the two folding parts 21, and the two vertical parts are connected through the top. The folding part, the vertical part, and the top are usually integrally formed. This channel-shaped keel is generally hook-connected to the square tube installed on the top wall through a hooking part. For example, an S-shaped hooking part can be used. One end of it is inserted between the folding part 21 and the ceiling panel, and then the folding part 21, the hooking part, and the ceiling panel are fixedly connected. The other end of it is lapped on the square tube. The splicing method between adjacent ceiling panels is not restricted. The sides of the ceiling panels can be directly abutted against each other; or a splicing structure can be used for connection. For example, a groove is arranged on the side of the ceiling panel. The splicing structure can be an inverted T-shaped profile. The two horizontal ends of it are respectively inserted into the grooves of adjacent two ceiling panels, and a lapping plate, etc. is arranged at one vertical end of it to be connected to the square tube arranged on the top wall.

[0036] The high-position ceiling board 51 is connected to the top wall body by high-position keels 6. The structure and installation method of the high-position keels 6 are the same as those of the low-position keels 2. The only difference is that in the connection between the high-position keels 6 and the top wall body, the height of the engaging parts used should be less than the height of the engaging parts used for the low-position keels 2 to ensure the flatness of the overall ceiling structure.

[0037] There are gaps between the four ends of the overall ceiling board 1 and the four side wall bodies respectively, and edge finishing is required for each. At the same time, considering the application of lamps, a heightening part 5 for forming a backlight trough can be provided between one end of the four ends and the side wall body, and ordinary edge finishing parts 4 can be provided between the remaining three ends and the side wall body; alternatively, heightening parts 5 can be provided between a pair of opposite ends and the side wall body respectively, and ordinary edge finishing parts 4 can be provided between the other pair of opposite ends and the side wall body respectively; the end where the heightening part 5 is provided between it and the side wall body is denoted as the heightening end 12, and the end where the edge finishing part 4 is provided between it and the side wall body is denoted as the edge finishing end 11. In this embodiment, the installation method of one heightening part 5 and three edge finishing parts 4 is used for illustration. As Figure 1 shown, the edge finishing end 11 is connected to the first side wall body or the second side wall body through the edge finishing part 4, and the heightening end 12 is connected to the second side wall body through the heightening part 5. During installation, first install the edge finishing part 4 and the heightening part 5 on the side wall body respectively, and then lift the ceiling board.

[0038] Regarding the edge finishing part 4, first look at the installation of the edge finishing part 4 between the edge finishing end 11 and the second side wall body. As Figure 4 and Figure 5As shown in the figure, the edge trimming member 4 is an integrally formed profile, including a wall panel connection structure connected to the wall panel 3 and a ceiling panel connection structure connected to the edge trimming end 11. The wall panel connection structure is in an inverted U shape, including a horizontal top connection portion 45, and a back connection portion 44 and a front connection portion 46 vertically arranged at both ends of the top connection portion 45 respectively. The ceiling panel connection structure is connected to the front connection portion 46. During installation, the wall panel connection structure is inserted into the top end of the wall panel 3 through its inverted U-shaped groove. The length of the top connection portion 45 can be designed to be basically the same as the thickness of the wall panel 3, so that after the wall panel connection structure is installed on the wall panel 3, the back connection portion 44, the top connection portion 45, and the front connection portion 46 are respectively in contact with the back surface, the top surface, and the front surface of the wall panel 3. Since a ceiling panel that needs to bear a certain gravity will be installed on the front connection portion 46, the ceiling panel connection structure is likely to drive the front connection portion 46 to bend towards the direction of the wall panel 3 after being subjected to gravity. Therefore, in this embodiment, the length of the top connection portion 45 is designed to be greater than the thickness of the wall panel 3, and a pressing block 47 is arranged on the side of the front connection portion 46 close to the wall panel 3, so that after the wall panel connection structure is installed on the wall panel 3, the back connection portion 44 and the top connection portion 45 are respectively in contact with the back surface and the top surface of the wall panel 3, but there is a gap between the front connection portion 46 and the front surface of the wall panel 3, and the free end of the pressing block 47 is in contact with the front surface of the wall panel 3. Then when the ceiling panel connection structure drives the front connection portion 46 to have a tendency to bend towards the direction of the wall panel 3 after being subjected to gravity, it will drive the free end of the pressing block 47 to move inwards and upwards, and since the free end of the pressing block 47 is already in contact with the wall panel 3, this bending tendency is restricted by the stopping and frictional force of the wall panel 3, improving the stability of the edge trimming member structure. Therefore, preferably, the free end surface of the pressing block 47 is provided with patterns for increasing friction. Based on this, when installing this wall panel connection structure, first apply a layer of structural adhesive on the back surface of the wall panel 3 or / and the back connection portion 44, and the top surface of the wall panel 3 or / and the top connection portion 45, then move the wall panel connection structure downwards so that the back connection portion 44 is inserted into the gap between the wall panel 3 and the second side wall; continue to move the edge trimming member downwards so that the top connection portion 45 abuts against the top surface of the wall panel 3, then push the edge trimming member inwards so that the end of the pressing block 47 is in close contact with the front surface of the wall panel 3; finally, drive a screw into the front connection portion 46, and the tail of the screw is inserted into the wall panel 3. Preferably, a longer screw can be used so that the tail of the screw can also be inserted into the back connection portion 44 or even into the second side wall. The structural adhesive filled on the back surface of the wall panel 3 or / and the back connection portion 44 can be more to make up for the gap between the wall panel 3 and the back connection portion 44. In addition, at this time, if the gap between the back connection portion 44 and the second side wall is large, it can also be filled with structural adhesive.

[0039] The ceiling board connection structure is Z-shaped, including a limiting part 41 parallel to the side surface of the edge receiving end 11, a receiving part 42 and a reinforcing part 43 respectively vertically arranged at both ends of the limiting part 41. The other end of the reinforcing part 43 is vertically connected to the above-mentioned positive connection part 46. Note that it is necessary to control the horizontal plane where the pressing block 47 is located to be higher than the horizontal plane where the reinforcing part 43 is located. Otherwise, before the positive connection part 46 is bent in the ceiling board connection structure, the connection between the reinforcing part 43 and the positive connection part 46 may be bent or broken, and the above-mentioned structural strengthening effect cannot be achieved.

[0040] When installing the ceiling board with the installation end used as the edge receiving end 11, first, it is necessary to widen the low-position keel 2 on the ground, that is, nail a wood-plastic block into its back. One end of the wood-plastic block abuts against the vertical part of the low-position keel 2 and overlaps on the folded edge part 21. It is pressed on the low-position keel 2 to improve the installation strength between the ceiling board and the low-position keel 2. Considering that the folded edge part 21 has a certain thickness, a semi-groove for the folded edge part 21 to insert is provided at the end of the wood-plastic block. The other end of the wood-plastic block protrudes from the end surface of the edge receiving end 11 to form a protruding part. When widening the low-position keel 2, the length of the reinforcing part 43 can be measured first to control the length of the part where the low-position keel 2 protrudes from the edge receiving end 11, that is, the length of the protruding part is basically the same as the length of the reinforcing part 43. Then, in accordance with Figure 4 the direction, the ceiling board is lifted obliquely as a whole with the left side on top and the right side on the bottom. After being lifted through the gap between the left edge receiving part 4 and the right ceiling board, it is rotated to the horizontal, and then the ceiling board is lowered so that the edge receiving end 11 overlaps on the receiving part 42 and the protruding part overlaps on the reinforcing part 43; then screws are nailed into the reinforcing part 43 so that the screw tails pass through the reinforcing part 43 and the protruding part in sequence to complete the fixation. Nail holes can be set in the reinforcing part 43 in advance for easy positioning.

[0041] After the above installation is completed, based on the structure of the edge receiving part 4, a two-level trapezoidal structure is presented between the second side wall and the ceiling. At this time, a support plate 31 can be added to the front surface of the wall 3. The top surface of the support plate 31 abuts against the pressing block 47, and the front surface abuts against the side of the positive connection part 46 close to the wall panel 3 to enclose a part of the stepped structure and prevent dust from accumulating here and being difficult to clean; at the same time, the top end of the support plate 31 is inserted and abutted between the pressing block 47 and the positive connection part 46, playing a certain role in structural strengthening; in addition, the connection between the support plate 31 and the wall panel 3 can be designed as a detachable connection, such as adhesive connection, and its structural style can be freely replaced according to the requirements of the user, improving the practicability.

[0042] When the edge receiving part 4 is installed between the edge receiving end 11 and the first side wall, the structure and installation method of the edge receiving part 4 are basically the same as above. At this time, it is necessary to lengthen the low-position keel 2 through the wood-plastic block belt so that it protrudes from the end surface of the edge receiving end 11 to form a protruding part.

[0043] The heightening member 5 is used to form a backlight trough. As Figure 6 shown, there is a ceiling heightening board 52 between the high ceiling board 51 and the overall ceiling board 1, and there is a wallboard heightening board 53 between the high ceiling board 51 and the wallboard 3 of the second side wall. A U-shaped backlight trough is formed between the ceiling heightening board 52, the high ceiling board 51, and the wallboard heightening board 53. To improve the backlight effect, a reflective film is provided on one side of the ceiling heightening board 52, the high ceiling board 51, and the wallboard heightening board 53 close to the backlight trough.

[0044] The ceiling heightening board 52, the high ceiling board 51, and the wallboard heightening board 53 can be integrally formed or formed by splicing as in this embodiment. For example, as Figure 2 and Figure 3 shown, after the ceiling heightening board 52 and the high ceiling board 51 are vertically spliced, a number of L-shaped corner codes are provided at the connection between the two. The horizontal plate of the corner code is tightly attached to the high ceiling board 51 and welded or screwed, and the vertical plate is tightly attached to the ceiling heightening board 52 and welded or screwed. The corner code can be provided at the external angle or / and internal angle of the vertical structure of the ceiling heightening board 52 and the high ceiling board 51. To avoid affecting the beauty of the backlight trough, it is provided at the external angle as Figure 2 shown.

[0045] The connection between the wallboard heightening board 53 and the high ceiling board 51 is the same and can also adopt the above corner code structure. Further, to improve the connection strength between the two, as Figure 6 shown, a relatively thick wallboard heightening board 53 is used. A semi-groove is provided at the upper end of the wallboard heightening board 53. After the end of the high ceiling board 51 is inserted into the semi-groove, it is fixed by a corner code. This thickened wallboard heightening board 53 with a semi-groove can be directly formed by splicing two plate members with different heights.

[0046] In the above structure, both ends of the high ceiling board 51 in the width direction are supported and enclosed by the ceiling heightening board 52 and the wallboard heightening board 53 respectively. Further, as Figure 2 shown, there are also closing boards between both ends of the high ceiling board 51 in the length direction and the wallboard 3 provided on the first side wall respectively, so as to further support and enclose through the closing boards, making the heightening structure form an enclosure structure with better integrity. The structure of the closing board and its installation method with the wallboard 3 and the ceiling heightening board 52 are the same as those of the wallboard heightening board 53. In addition, as Figure 3 shown, the closing board is also connected to the ceiling heightening board 52 and the wallboard heightening board 53 respectively through corner codes.

[0047] When installing this raised structure, first assemble the ceiling raised panel 52, high-position ceiling panel 51, wall panel raised panel 53, and closure panel on the ground, and install the high-position keel 6 on the back of the high-position ceiling panel 51. Then lift the whole assembly so that the bottom ends of the two closure panels overlap the top of the wall panel 3 on the first side wall. Then move the whole assembly to the right, connect the high-position keel 6 to the top wall, and make the bottom end of the wall panel raised panel 53 overlap the top of the wall panel 3 on the second side wall; further adjust the position to make the wall panel raised panel 53 flush with the wall panel 3.

[0048] To improve the installation stability, generally, adhesive can be applied to the bottom end of the wall panel raised panel 53 or / and the top of the wall panel 3 before lifting. Also, as in this embodiment, a connecting member can be added between the two. Figure 6 and Figure 7 As shown, the connecting member first includes a flush plate 71 which is vertically arranged. The front faces of both the wall panel 3 and the wall panel raised panel 53 are abutted against the flush plate 71 to ensure the flushness of the wall panel 3 and the wall panel raised panel 53 through the flush plate 71. The connecting member also includes a fixing plate 72 for fixing the flush plate 71. The fixing plate 72 is vertically connected to the flush plate 71. The fixing plate 72 is inserted between the wall panel raised panel 53 and the wall panel 3 and connected to the top surface of the wall panel 3. The connection method is not limited and can be adhesive bonding, screw connection, etc. Further, to improve the connection strength and balance the stress of the connecting member, the connecting member also includes a limiting plate 73 provided on the fixing plate 72. One side of the wall panel raised panel 53 abuts against the flush plate 71 and the other side abuts against the limiting plate 73. Adhesive can be added between the wall panel raised panel 53 and the limiting plate 73, or they can be fixed by screw connection. The connecting member also includes a reinforcing plate 74 provided on the fixing plate 72. The reinforcing plate 74 is connected to the side of the wall panel 3 close to the second side wall. The connection method is also not limited. It can be achieved by controlling the thickness of the wall panel 3 to be slightly greater than the distance between the flush plate 71 and the reinforcing plate 74, so that the wall panel 3 is inserted between the flush plate 71 and the reinforcing plate 74 and has an interference fit with them, or they can be connected by adhesive bonding. The flush plate 71, fixing plate 72, limiting plate 73, and reinforcing plate 74 are preferably integrally formed.

[0049] When installing the ceiling panel at the installation end used as the high-end 12, first install the ceiling panel and the low-position keel 2 on the ground, and pay attention to controlling the installation position of the low-position keel 2, as Figure 6As shown, a blank part is left on the back of the ceiling board near the second side wall. After assembly, directly lift the ceiling board upward so that the low-position keel 2 is connected to the top wall. Then, an integrally formed L-shaped reinforcement is added between the ceiling board and the ceiling heightening board 52. The reinforcement includes a first connection part parallel to and connected to the ceiling board, and a second connection part parallel to and connected to the ceiling heightening board 52. Further, in order to improve the connection strength, the length of the high-position ceiling board 51 and the height of the ceiling heightening board 52 can be controlled so that after the ceiling board is installed, the bottom end of the ceiling heightening board 52 just abuts against the folded edge part 21 of the low-position keel 2, and it is pressed on the low-position keel 2 to improve the installation strength between the ceiling board and the low-position keel 2. Further, a number of reinforcement screws 54 are also added, so that the reinforcement screws 54 sequentially pass through the second connection part of the reinforcement, the ceiling heightening board 52, and the two vertical parts of the low-position keel 2 to improve the connection strength.

[0050] After the above installation is completed, a part of the ceiling board is located in the backlight trough, which is called the installation part. Install the lamp 13 on the back of this installation part to achieve backlight. The lamp 13 is preferably installed in a detachable manner such as by gluing, which is convenient for subsequent maintenance and replacement. At the same time, in order to prevent the rough edges of the overall ceiling board 1 from hurting the operators, a protective cover is also provided on it to wrap the edges of the overall ceiling board 1.

[0051] The installation method of this wall and ceiling heightening structure includes the following steps:

[0052] S1. Install the edge trim 4 and the connecting piece on the wall board 3 respectively; splice the ceiling heightening board 52, the high-position ceiling board 51, the wall board heightening board 53, and the high-position keel 6 into a whole on the ground and then lift it up so that the high-position keel 6 is connected to the top wall, and the bottom end of the wall board heightening board 53 is inserted between the flush board 71 and the limiting board 73 of the connecting piece;

[0053] S2. Lift the ceiling board with the end used as the edge trimming end 11 upward so that the part of the low-position keel 2 protruding from the edge trimming end 11 overlaps on the reinforcement part 43, and after the position is confirmed, drive nails upward from the bottom at the reinforcement part 43 to fix it; install the ceiling board in sequence; finally, lift the ceiling board with the end used as the heightening end 12 upward until its back abuts against the ceiling heightening board 52, and then connect the ceiling board and the ceiling heightening board 52 through the reinforcement and the reinforcement screws 54.

[0054] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Those skilled in the art to which the present invention pertains can make various modifications or supplements to the described specific embodiments or use similar methods for substitution, but will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A prefabricated bathroom ceiling, which is used in an installation space having a top wall and side walls, and wall panels (3) are provided on the side walls; characterized in that: The suspended ceiling comprises an integral suspended ceiling panel (1) connected to a top wall via a low-position keel (2), the integral suspended ceiling panel (1) comprising an edge trimming end (11) and a heightening end (12), the edge trimming end (11) being connected to a side wall via an edge trimming piece (4), and the heightening end (12) being connected to a side wall via a heightening piece (5); The edge trimming member (4) comprises a wall panel connection structure connected to the wall panel (3) and a ceiling panel connection structure connected to the edge trimming end (11); the ceiling panel connection structure is Z-shaped and comprises a limiting portion (41) abutting against a side surface of the edge trimming end (11), a receiving portion (42) arranged at one end of the limiting portion (41) for overlapping the edge trimming end (11), and a reinforcing portion (43) arranged at the other end of the limiting portion (41) and flush with the back surface of the integral ceiling panel (1); the low-position keel (2) comprises a protruding portion protruding from the edge trimming end (11), and the protruding portion is overlapped on the reinforcing portion (43); The heightening member (5) comprises a high-position ceiling panel (51) connected to the top wall via a high-position keel (6); a wall panel heightening panel (53) is provided at one end of the high-position ceiling panel (51) and a ceiling heightening panel (52) is provided at the other end; the wall panel heightening panel (53) is flush with and connected to the wall panel (3); the ceiling heightening panel (52) is connected to a side of the integral ceiling panel (1) close to the top wall; a reflector lamp slot is formed between the ceiling heightening panel (52), the high-position ceiling panel (51) and the wall panel heightening panel (53); The low-position keel (2) is in the shape of a "+" and comprises two folded edge portions (21) for connecting to the integral ceiling plate (1), the two folded edge portions (21) being respectively connected to a vertical portion, and the two vertical portions being connected via a connecting portion; the ceiling heightening plate (52) abuts against the folded edge portions (21); The wall panel heightening plate (53) is connected to the wall panel (3) via a connecting piece, wherein the connecting piece comprises a flush plate (71), and both the wall panel (3) and the wall panel heightening plate (53) abut against the flush plate (71); the connecting piece further comprises a fixing plate (72) connected to the flush plate (71), and the fixing plate (72) is connected to the top surface of the wall panel (3); the connecting piece further comprises a limiting plate (73) and a reinforcing plate (74) arranged on the fixing plate (72), one side of the wall panel heightening plate (53) abuts against the flush plate (71), and the other side abuts against the limiting plate (73); the wall panel (3) abuts against the flush plate (71) on one side, and the other side abuts against the reinforcing plate (74).

2. The prefabricated bathroom ceiling according to claim 1, characterized in that: The integral ceiling panel (1) and the ceiling heightening panel (52) are connected via an integrally formed reinforcement member, the reinforcement member comprising a first connection portion parallel to and connected to the integral ceiling panel (1) and a second connection portion parallel to and connected to the ceiling heightening panel (52).

3. The prefabricated bathroom ceiling according to claim 2, wherein: It also includes a reinforcing screw (54), which passes through the second connecting portion, the ceiling heightening plate (52), and the vertical portion of the low-position keel (2) in sequence.

4. The prefabricated bathroom ceiling according to claim 1, wherein: The wall panel connection structure includes a back connection part (44) abutting against the back surface of the wall panel (3), a top connection part (45) abutting against the top surface of the wall panel (3), and a front connection part (46) connected to the front surface of the wall panel (3); the front connection part (46) is connected to the reinforcement part (43).

5. A prefabricated bathroom ceiling according to claim 4, characterized in that: A tightening block (47) is provided between the front connection part (46) and the front surface of the wall panel (3), one end of the tightening block (47) abuts against the front surface of the wall panel (3), and the other end is connected to the front connection part (46).

6. The prefabricated bathroom ceiling according to claim 5, wherein: The horizontal plane where the tightening block (47) is located is higher than the horizontal plane where the reinforcement part (43) is located.

7. The prefabricated bathroom ceiling according to claim 5, characterized in that: A support plate (31) is provided on the front surface of the wall panel (3), and the top surface of the support plate (31) abuts against the tightening block (47).

8. An installation method of the assembled bathroom ceiling according to any one of claims 1-7, characterized in that: It includes the following steps: S1. Install the edge trimmer (4) and the heightening member (5) on the side wall respectively; S2. Lift the overall ceiling board (1) so that the protruding part of the low-position keel (2) overlaps on the reinforcement part (43), and connect the overall ceiling board (1) to the ceiling heightening board (52).

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