阅读说明：本技术 一种装配式羽毛式天花吊顶系统及其施工方法 (Assembled feather type suspended ceiling system and construction method thereof ) 是由 王卫东 李萌 王子兑 陈俊树 王驰琳 于 2021-08-23 设计创作，主要内容包括：本申请涉及吊顶的技术领域,尤其是涉及一种装配式羽毛式天花吊顶系统及其施工方法,其包括楼板、垂直于楼板设置的吊杆、连接在吊杆上的龙骨架及固定在龙骨架上的装饰板,所述楼板底面沿长度方向等间隔固定有多组型钢组,所述型钢组包括两根间隔设置且相互平行的固定型钢,所述固定型钢上表面等间隔布设有多个安装槽,所述吊杆包括杆身本体和固定在杆身本体上的固定端头,所述固定端头相对两侧壁顶端固定有平行于楼板的翼板,所述翼板安装在固定型钢上的安装槽内。本申请在固定端头翼板下方设置固定型钢,固定型钢能为固定端头提供支撑力,从而使得固定型钢能为吊杆提供插接在承接力,提升了吊杆与楼板的固定效果。(The utility model belongs to the technical field of the technique of furred ceiling and specifically relates to a fabricated feather formula suspended ceiling system and construction method thereof is related to, it includes the jib that floor, perpendicular to floor set up, connects keel frame on the jib and fix the decorative board on keel frame, the bottom surface of the floor is fixed with multiunit shaped steel group along length direction equidistant, shaped steel group includes that two intervals set up and the fixed shaped steel that is parallel to each other, a plurality of mounting grooves have been laid to fixed shaped steel upper surface equidistant, the jib includes pole body and fixes the fixed end on pole body, the relative both sides wall top of fixed end is fixed with the pterygoid lamina that is on a parallel with the floor, the pterygoid lamina is installed in the mounting groove on fixed shaped steel. This application sets up fixed shaped steel in fixed end pterygoid lamina below, and fixed shaped steel can provide the holding power for fixed end to make fixed shaped steel can provide for the jib and peg graft at bearing force, promoted the fixed effect of jib and floor.)

1. The utility model provides an assembled feather formula suspended ceiling system which characterized in that: including jib (2), the keel frame (3) of connection on jib (2) that floor (1), perpendicular to floor (1) set up and fix decorative board (4) on keel frame (3), floor (1) bottom surface is fixed with multiunit shaped steel group (5) along length direction equidistant, shaped steel group (5) include two intervals set up and fixed shaped steel (51) that are parallel to each other, a plurality of mounting grooves (511) have been laid to fixed shaped steel (51) upper surface equidistant, jib (2) include pole body (21) and fix fixed end (22) on pole body (21), the relative both sides wall top of fixed end (22) is fixed with pterygoid lamina (221) that is on a parallel with floor (1), install in mounting groove (511) on fixed shaped steel (51) pterygoid lamina (221).

2. The fabricated feather suspended ceiling system of claim 1, wherein: the floor slab (1) is fixedly provided with a plurality of expansion insertion rods (52) in an inserting mode at the position of the fixed section steel (51), the expansion insertion rods (52) can extend out of the floor slab (1), the fixed section steel (51) is provided with connecting through holes (512) between adjacent mounting grooves (511), and when the fixed section steel (51) is mounted on the floor slab (1), the expansion insertion rods (52) on the floor slab (1) are inserted into the connecting through holes (512) on the fixed section steel (51) and fixed through locking nuts (53).

3. The fabricated feather suspended ceiling system of claim 1, wherein: the fixing structure is characterized in that a limiting stud (211) is fixed in the middle of the rod body (21), a limiting groove (222) is formed in the bottom surface of the fixing end head (22), an installation through hole (223) is formed in the bottom position of the limiting groove (222) of the fixing end head (22), and the limiting stud (211) on the rod body (21) is connected into the limiting groove (222) on the fixing end head (22) in a threaded mode.

4. The fabricated feather suspended ceiling system of claim 1, wherein: keel frame (3) are including horizontal fossil fragments (31) of reciprocal anchorage and indulge fossil fragments (32), horizontal fossil fragments (31) are located shaped steel group (5) below and perpendicular to shaped steel group (5), horizontal fossil fragments (31) are located shaped steel group (5) below and are on a parallel with shaped steel group (5), be fixed with spacing platform (212) on the pole body (21), pole body (21) are located spacing platform (212) below and wear to establish on indulging fossil fragments (32) and fixed through fixation nut (23).

5. The fabricated feather suspended ceiling system of claim 4, wherein: horizontal fossil fragments (31) have been seted up a plurality of first constant head tank (311) along length direction, indulge fossil fragments (32) and seted up a plurality of second constant head tank (321) along length direction, first constant head tank (311) are gone up in horizontal fossil fragments (31) and are indulged second constant head tank (321) on fossil fragments (32) and detain mutually and horizontal fossil fragments (31) and indulge fossil fragments (32) and pass through fixing bolt (33) fixedly.

6. The fabricated feather suspended ceiling system of claim 4, wherein: the two sides of the section steel set (5) are symmetrically provided with oblique connecting rods (6), one end of each oblique connecting rod (6) is fixed on the section steel set (5), and the other end of each oblique connecting rod is arranged on the transverse keel (31).

7. The fabricated feather suspended ceiling system of claim 4, wherein: the supporting angle plate is characterized in that a supporting angle plate (7) is connected to the joint of the transverse keel (31) and the longitudinal keel (32), the supporting angle plate (7) is fixed to the transverse keel (31) through a first fastening bolt (71), and the supporting angle plate (7) is fixed to the longitudinal keel (32) through a second fastening bolt (72).

8. The fabricated feather suspended ceiling system of claim 7, wherein: and reinforcing ribs (73) are fixed on the supporting angle plates (7).

9. The fabricated feather suspended ceiling system of claim 1, wherein: the upper surface of the decorative plate (4) is provided with an avoiding groove (41) at the longitudinal keel (32), and the decorative plate (4) is fixed with the transverse keel (31) through a fixing screw (8).

10. The construction method of the assembled feather type ceiling system is characterized by comprising the following steps of:

drawing an installation position picture on a floor slab (1), drawing a position line for fixing the section steel (51) and a position point of a suspender (2) on the bottom surface of the floor slab (1), and punching a hole at the position point;

assembling a suspender (2) and a keel frame (3), assembling a fixed end (22) on a shaft body (21), and assembling a transverse keel (31), a longitudinal keel (32) and a supporting angle plate (7);

installing a suspender (2) and an expansion inserted bar (52), and inserting and fixing the assembled suspender (2) and the expansion inserted bar (52) on the floor (1) according to an installation position diagram on the floor (1);

installing a section steel group (5), and fixing the section steel group (5) on the floor slab (1) according to an installation position diagram on the floor slab (1);

installing a keel frame (3), and fixing the assembled keel frame (3) at the bottom of the suspender (2);

installing an inclined connecting rod (6), and installing the inclined connecting rod (6) between the fixed section steel (51) and the keel frame (3);

and installing a decorative plate (4), and installing the decorative plate (4) on the keel frame (3).

Technical Field

The application relates to the technical field of suspended ceilings, in particular to an assembly type feather type suspended ceiling system and a construction method thereof.

Background

Along with the promotion of industrial production and modularization installation in the architectural decoration field, the aesthetic property and the construction speed of interior decoration are all effectively promoted, and the decoration of furred ceiling has important influence to aesthetic property and construction speed as the important component part of interior decoration.

In the related art, a suspended ceiling includes a floor, a hanger rod inserted and fixed to the floor, a keel frame connected to the hanger rod, and a decorative plate fixed to the keel frame, and the decorative plate is fixed to a lower portion of the floor through the hanger rod and the keel frame.

In view of the above-mentioned related art, the inventor thinks that the fixing strength of the hanger rod and the floor determines the fixing strength of the decorative plate and the floor, and the fixing effect of the hanger rod and the floor in the related art is not good, resulting in the fixing effect of the decorative plate and the floor in the related art being not good.

Disclosure of Invention

In order to improve the fixing effect of a suspender and a floor slab, the application provides an assembly type feather type suspended ceiling system and a construction method thereof.

First aspect, the application provides an assembled feather formula suspended ceiling system adopts following technical scheme:

the utility model provides an assembled feather formula suspended ceiling system, includes jib, the keel frame of connection on the jib that floor, perpendicular to floor set up and fixes the decorative board on keel frame, the floor bottom surface is fixed with multiunit shaped steel group along length direction equidistant, shaped steel group sets up and the fixed shaped steel that is parallel to each other including two intervals, a plurality of mounting grooves have been laid to fixed shaped steel upper surface equidistant, the jib includes pole body and fixes the fixed end on pole body, the relative both sides wall top of fixed end is fixed with the pterygoid lamina that is on a parallel with the floor, the pterygoid lamina is installed in the mounting groove on fixed shaped steel.

By adopting the technical scheme, the fixing end is arranged on the rod body, the rod body is spliced and fixed in a floor, meanwhile, the fixing section steel is arranged below the wing plate on the fixing end and fixed on the floor, and the fixing section steel can provide supporting force for the fixing end, so that the fixing section steel can provide a bearing force for the suspender to be spliced, and the fixing effect of the suspender and the floor is improved.

Optionally, the floor slab is fixed with a plurality of expansion inserted bars in the fixed profile steel in an inserting manner, the expansion inserted bars can stretch out of the floor slab, the fixed profile steel is provided with connecting through holes between adjacent mounting grooves, and when the fixed profile steel is mounted on the floor slab, the expansion inserted bars on the floor slab are inserted into the connecting through holes on the fixed profile steel and are fixed through locking nuts.

Through adopting above-mentioned technical scheme, before the installation of fixed shaped steel, squeeze into the floor with the inflation inserted bar in, install fixed shaped steel and stretch out the part of floor and fixed through lock nut at the inflation inserted bar, make things convenient for the staff to fix shaped steel in the floor bottom surface, and then make things convenient for the staff to strengthen fixedly to the jib.

Optionally, a limit stud is fixed at the middle position of the rod body, a limit groove is formed in the bottom surface of the fixed end, an installation through hole is formed in the bottom of the limit groove of the fixed end, and the limit stud on the rod body is in threaded connection with the limit groove in the fixed end.

Through adopting above-mentioned technical scheme, pole body intermediate position is fixed with spacing double-screw bolt, and pole body passes fixed end and just through spacing double-screw bolt and pole body threaded connection, dismantles into pole body and fixed end with the jib, has reduced the occupation space of jib, the transportation of the jib of being convenient for.

Optionally, keel frame includes reciprocal anchorage's horizontal keel and indulges fossil fragments, horizontal keel is located shaped steel group below and perpendicular to shaped steel group, horizontal keel is located shaped steel group below and is on a parallel with shaped steel group, be fixed with spacing platform on the body of pole, the body of pole is located spacing platform below and wears to establish on indulging fossil fragments and fixed through fixation nut.

Through adopting above-mentioned technical scheme, set up spacing platform bottom pole body, install keel frame and be located spacing platform below and fix keel frame in pole body bottom through fixation nut with keel frame at pole body, can fix keel frame in the jib bottom, be convenient for fix the decorative board in the floor below.

Optionally, a plurality of first constant head tank have been seted up along length direction to the cross keel, indulge the fossil fragments and seted up a plurality of second constant head tanks along length direction, first constant head tank on the cross keel is buckled mutually with the second constant head tank on the indulging fossil fragments and the cross keel passes through fixing bolt with indulging the fossil fragments and fixes.

Through adopting above-mentioned technical scheme, set up first constant head tank on the horizontal keel, indulge and seted up the second constant head tank on the fossil fragments, first constant head tank on the horizontal keel is buckled mutually with the second constant head tank on the fossil fragments of indulging and horizontal keel passes through fixing bolt with indulging the fossil fragments and fixes, can be fixed with horizontal keel and indulge the fossil fragments, makes things convenient for the installation of horizontal keel and indulging the fossil fragments fixed.

Optionally, the two sides of the section steel set are symmetrically provided with oblique connecting rods, one end of each oblique connecting rod is fixed on the section steel set, and the other end of each oblique connecting rod is arranged on the transverse keel.

Through adopting above-mentioned technical scheme, fixed oblique connecting rod between shaped steel group and keel frame has promoted keel frame's fixed node quantity, has strengthened keel frame's fixed effect, can prevent the jib simultaneously and rock, has promoted the fixed stability of jib.

Optionally, the cross keel and the longitudinal keel are connected with a supporting angle plate, the supporting angle plate is fixed with the cross keel through a first fastening bolt, and the supporting angle plate is fixed with the longitudinal keel through a second fastening bolt.

Through adopting above-mentioned technical scheme, be fixed with the support scute at horizontal fossil fragments and vertical keel junction, promoted the fixed effect of horizontal fossil fragments and vertical keel, strengthened the structural strength of horizontal fossil fragments and vertical keel department simultaneously, can prevent that horizontal fossil fragments and vertical keel department from taking place to warp.

Optionally, the supporting angle plate is fixed with a reinforcing rib.

Through adopting above-mentioned technical scheme, fixed strengthening rib on supporting angle board can promote the structural strength of support frame scute to the structural strength of horizontal fossil fragments and vertical fossil fragments department has been promoted.

Optionally, the upper surface of the decorative plate is provided with an avoiding groove at the longitudinal keel, and the decorative plate is fixed with the transverse keel through a fixing screw.

Through adopting above-mentioned technical scheme, fix the keel frame on the jib after, install the decorative board on the keel frame and fixed through set screw, can prevent that the decorative board from dropping from the keel frame, can fix the decorative board in the floor below.

In a second aspect, the application provides a construction method of an assembly type feather type suspended ceiling system, which adopts the following technical scheme:

a construction method of an assembly type feather type suspended ceiling system comprises the following steps:

drawing an installation position picture on a floor slab, drawing a position line for fixing the section steel and a position point of a suspender on the bottom surface of the floor slab, and punching a hole at the position point;

assembling a suspender and a keel frame, assembling a fixed end on the body of the rod, and assembling a cross keel, a longitudinal keel and a supporting angle plate;

installing a suspender and an expansion inserting rod, and inserting and fixing the assembled suspender and the expansion inserting rod on a floor slab according to an installation position diagram on the floor slab;

installing the section steel group, and fixing the section steel group on the floor slab according to an installation position diagram on the floor slab;

installing a keel frame, and fixing the assembled keel frame at the bottom of the suspender;

installing an inclined connecting rod, and installing the inclined connecting rod between the fixed profile steel and the keel frame;

and installing a decorative plate, namely installing the decorative plate on the keel frame.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the fixing end is arranged on the rod body, the rod body is spliced and fixed in a floor, meanwhile, the fixing section steel is arranged below a wing plate on the fixing end and fixed on the floor, and the fixing section steel can provide supporting force for the fixing end, so that the fixing section steel can provide bearing force for the suspender in a splicing manner, and the fixing effect of the suspender and the floor is improved;

2. the fixing end is arranged on the rod body, the rod body is spliced and fixed in a floor, meanwhile, the fixing section steel is arranged below a wing plate on the fixing end and fixed on the floor, and the fixing section steel can provide supporting force for the fixing end, so that the fixing section steel can provide bearing force for the suspender in a splicing manner, and the fixing effect of the suspender and the floor is improved;

3. fixed oblique connecting rod between shaped steel group and keel frame has promoted keel frame's fixed node quantity, has strengthened keel frame's fixed effect, can prevent the jib simultaneously and rock, has promoted the fixed stability of jib.

Drawings

Fig. 1 is a schematic structural diagram of an overall assembled feather type suspended ceiling system according to an embodiment of the present application.

Fig. 2 is a schematic structural diagram of a floor hidden by a fabricated feather type suspended ceiling system in the embodiment of the present application.

Fig. 3 is a partial cross-sectional view of a fabricated feather suspended ceiling system according to an embodiment of the present application.

FIG. 4 is a schematic view of the connection structure of the keel frame and the supporting angle plate according to the embodiment of the application.

Description of reference numerals: 1. a floor slab; 2. a boom; 21. a shaft body; 211. a limiting stud; 212. a limiting table; 22. fixing the end head; 221. a wing plate; 222. a limiting groove; 223. mounting a through hole; 23. fixing a nut; 3. a keel frame; 31. a transverse keel; 311. a first positioning groove; 312. a second fixing plate; 32. a longitudinal keel; 321. a second positioning groove; 33. fixing the bolt; 4. a decorative plate; 41. an avoidance groove; 5. a section steel group; 51. fixing the section steel; 511. mounting grooves; 512. a connecting through hole; 513. a first fixing plate; 52. an expansion inserted link; 53. locking the nut; 6. an inclined connecting rod; 61. a connecting rod body; 62. a first connection circular plate; 63. a second connecting circular plate; 7. supporting the corner plate; 71. a first fastening bolt; 72. a second fastening bolt; 73. reinforcing ribs; 8. and fixing the screw.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses assembled feather formula suspended ceiling system. Referring to fig. 1 and 2, the assembled feather type suspended ceiling system comprises a floor slab 1, suspenders 2 which are arranged on the bottom surface of the floor slab 1 and are uniformly distributed in a net shape, a keel frame 3 connected to the bottoms of the suspenders 2, and a decorative plate 4 fixed on the keel frame 3.

Referring to fig. 2 and 3, the hanger rod 2 is perpendicular to the bottom surface of the floor slab 1, the hanger rod 2 comprises a rod body 21 and a fixed end 22, a limit stud 211 is integrally formed at the upper part of the rod body 21, a limit table 212 is fixed at the bottom of the rod body 21, wing plates 221 parallel to the bottom surface of the floor slab 1 are integrally formed at the top ends of two opposite side walls of the fixed end 22, a limit groove 222 matched with the limit stud 211 is formed in the middle position of the bottom surface of the fixed end 22, a connecting and mounting through hole 223 penetrating through the fixed end 22 is formed in the center position of the bottom surface of the limit groove 222 of the fixed end 22, the fixed end 22 is mounted on the rod body 21 from the upper end of the rod body 21, and a threaded column on the rod body 21 is connected into the limit groove 222 on the fixed end 22, so that the fixed end 22 and the rod body 21 can be mounted conveniently; the part of the shaft body 21 above the fixed end 22 is inserted and fixed in the floor 1, and the upper surface of the wing plate 221 on the fixed end 22 is attached to the bottom surface of the floor 1, so that the suspension rod 2 can be fixed on the floor 1.

Referring to fig. 2 and 3, the floor slab 1 is fixed with expansion inserted bars 52 at two opposite sides of the hanger rod 2, the expansion inserted bars 52 are perpendicular to the bottom surface of the floor slab 1 and are inserted and fixed on the floor slab 1, the expansion inserted bars 52 can extend out of the bottom surface of the floor slab 1 and are connected with locking nuts 53 in a threaded manner; the floor slab 1 is provided with a section steel group 5 below an expansion inserted bar 52, the section steel group 5 is provided with a plurality of groups along the length direction of the floor slab 1, the plurality of groups of section steel groups 5 are parallel to each other, the distance between the adjacent section steel groups 5 is equal, the section steel group 5 comprises two fixed section steels 51 which are symmetrically arranged on two sides of a suspender 2 and are parallel to each other, the fixed section steels 51 adopt channel steels, the opening direction is downward, a plurality of installation grooves 511 are distributed on the upper surface of the fixed section steels 51 at equal intervals along the length direction, the installation grooves 511 penetrate through the width direction of the fixed section steels 51, and connecting through holes 512 penetrating through the fixed section steels 51 are formed between the adjacent installation grooves 511 on the upper surface of the fixed section steels 51; after the fixed section steel 51 is installed on the floor slab 1, the expansion inserted bar 52 on the floor slab 1 is installed on the connecting through hole 512 on the fixed section steel 51 and is fixed through the locking nut 53; the upper wing plate 221 of the fixing end 22 is located in the mounting groove 511 of the fixing section steel 51, and the fixing section steel 51 can provide supporting force for the fixing end 22, thereby enhancing the fixing effect of the hanger rod 2 and the floor slab 1.

Referring to fig. 2 and 4, the keel frame 3 is arranged parallel to the bottom surface of the floor slab 1, the keel frame 3 comprises a horizontal keel 31 perpendicular to the fixed profile steel 51 and a vertical keel 32 parallel to the fixed profile steel 51, the horizontal keel 31 and the vertical keel 32 are both made of square steel and have the same type, the horizontal keel 31 is positioned below the vertical keel 32, the upper surface of the horizontal keel 31 is provided with a plurality of first positioning grooves 311 arranged at equal intervals along the length, the depth of the first positioning grooves 311 is half of the height of the horizontal keel 31, the bottom surface of the vertical keel 32 is provided with a plurality of second positioning grooves 321 arranged at equal intervals along the length, the depth of the second positioning grooves 321 is half of the height of the vertical keel 32, the vertical keel 32 is buckled on the horizontal keel 31 and is fixed through a fixing bolt 33, in the process of fixing the transverse keel 31 and the longitudinal keel 32 through the fixing bolt 33, the longitudinal keel 32 and the transverse keel 31 cannot move relatively, so that the assembling speed of the transverse keel 31 and the longitudinal keel 32 is increased; the longitudinal keel 32 is installed at the bottom of the shaft body 21 and fixed by the fixing nut 23.

Referring to fig. 2 and 4, the cross keel 31 is provided with L shape support gusset plate 7 with the longitudinal keel 32 junction, support gusset plate 7 deviates from 3 one side welded fastening of keel frame and has strengthening rib 73, the structural strength of support gusset plate 7 has been strengthened, support gusset plate 7 is close to 3 sides of keel frame and laminates with cross keel 31 and longitudinal keel 32 respectively, support gusset plate 7 is fixed with cross keel 31 through first fastening bolt 71, support gusset plate 7 is fixed with longitudinal keel 32 through second fastening bolt 72, can strengthen the structural strength of the junction of cross keel 31 and longitudinal keel 32 department, make cross keel 31 and longitudinal keel 32 fixed more stable.

Referring to fig. 3 and 4, a plurality of first fixing plates 513 uniformly distributed are welded and fixed on the side surface of the fixing section steel 51 away from the fixing end 22, and the distance between every two adjacent first fixing plates 513 is equal to the distance between every two adjacent cross keels 31; transverse keel 31 length direction welded fastening has polylith second fixed plate 312, be provided with the oblique connecting rod 6 that symmetrical jib 2 laid between first fixed plate 513 and the second fixed plate 312, oblique connecting rod 6 includes integrated into one piece's connecting rod body 61, first connection plectane 62 and second connection plectane 63, first connection plectane 62 is installed on first fixed plate 513 and is fixed on first fixed plate 513 through first locking bolt, second connection plectane 63 is installed on second fixed plate 312 and is fixed on second fixed plate 312 through second locking bolt, can prevent jib 2 and rock, jib 2's fixed stability has been promoted, the staff of being convenient for simultaneously connects.

Referring to fig. 3 and 4, decorative board 4 is located keel frame 3 bottom, the same bar of the same width of longitudinal joist 32 is seted up on decorative board 4 upper surface and is dodged groove 41, 4 bottom surfaces of decorative board wear to be equipped with many set screws 8 in horizontal fossil fragments 31 position, install back on keel frame 3 at decorative board 4, the staff passes set screws 8 and fixes decorative board 4 on horizontal fossil fragments 31, can fix decorative board 4 on keel frame 3, make on the decorative board 4 dodge groove 41 and align with longitudinal joist 32 simultaneously, be convenient for laminate decorative board 4 and horizontal fossil fragments 31, the fixed stability of horizontal fossil fragments 31 and decorative board 4 has been promoted.

The embodiment of the application also discloses a construction method of the assembled feather type ceiling system, which comprises the following steps:

step 1: leveling the bottom surface of the floor slab 1, measuring the parallelism of the floor slab 1 by using a level gauge, and leveling the bottom surface of the floor slab 1;

step 2: drawing an installation position diagram on a floor slab 1, drawing a position line of a fixed profile steel 51, a position point of an expansion inserted bar 52 and a position point of a suspender 2 on the bottom surface of the floor slab 1, and punching holes at the position points;

and step 3: the hanger rod 2 and the keel frame 3 are assembled, the fixed end 22 is assembled on the rod body 21, and the transverse keel 31, the longitudinal keel 32 and the supporting angle plate 7 are assembled, so that the steps 2 can be carried out simultaneously, and the time required for installing the suspended ceiling is reduced;

and 4, step 4: installing a suspender 2 and an expansion inserting rod 52, and inserting and fixing the assembled suspender 2 and the expansion inserting rod 52 on the floor slab 1 according to the installation position diagram in the step 2;

and 5: installing the section steel set 5, installing the fixed section steel 51 on the floor slab 1 according to the installation position diagram in the step 2, simultaneously enabling the wing plate 221 of the fixed end head 22 to be positioned in the installation groove 511 of the fixed section steel 51, and fixing the fixed section steel 51 and the expansion insertion rod 52 through the locking nut 53;

step 6: installing the keel frame 3, installing the assembled keel frame 3 at the position of a limiting table 212 at the bottom of the suspender 2, and fixing the keel frame 3 at the bottom of the suspender 2 through a fixing nut 23;

and 7: installing an inclined connecting rod 6, wherein one end of the inclined connecting rod 6 is fixed with a first fixing plate 513 on the fixed section steel 51, and the other end of the inclined connecting rod 6 is fixed with a second fixing plate 312 on the transverse keel 31;

and 8: installing the decorative plate 4, aligning the avoidance groove 41 on the decorative plate 4 with the longitudinal keel 32 on the keel frame 3, and fixing the decorative plate 4 on the keel frame 3 through the fixing screw 8.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.