阅读说明：本技术 转角安装结构 (Corner mounting structure ) 是由 王天才 于 2021-08-11 设计创作，主要内容包括：转角安装结构,包括呈型材状的安装部及呈型材状的装饰主体部,所述安装部的内侧面上布置有第一凹凸起,所述安装部用于安装到竖立墙立面上,所述装饰主体部能够可拆卸地连接到所述安装部上,所述装饰主体部用于从下方顶托吊顶层；其特征在于,所述装饰主体部包括水平壁体,在所述水平壁体的前端设置向上凸起壁,当所述装饰主体部连接到所述安装部上时,所述装饰主体部能够相对所述安装部摆动,所述装饰主体部通过所述向上凸起壁或向上凸起壁与水平壁体共同担当的形式从所述吊顶层的下方顶托所述吊顶层。(The corner mounting structure comprises a section-shaped mounting part and a section-shaped decoration main body part, wherein a first concave-convex part is arranged on the inner side surface of the mounting part, the mounting part is used for mounting on a vertical wall, the decoration main body part can be detachably connected to the mounting part, and the decoration main body part is used for jacking a suspended ceiling layer from the lower part; the decorative main body part is characterized by comprising a horizontal wall body, wherein an upward protruding wall is arranged at the front end of the horizontal wall body, when the decorative main body part is connected onto the installation part, the decorative main body part can swing relative to the installation part, and the decorative main body part supports the suspended ceiling layer from the lower part of the suspended ceiling layer in a mode that the upward protruding wall or the upward protruding wall and the horizontal wall body act together.)

1. The corner mounting structure comprises a section-shaped mounting part and a section-shaped decoration main body part, wherein a first concave-convex part is arranged on the inner side surface of the mounting part, the mounting part is used for mounting on a vertical wall, the decoration main body part can be detachably connected to the mounting part, and the decoration main body part is used for jacking a suspended ceiling layer from the lower part; the decorative main body part is characterized by comprising a horizontal wall body, wherein an upward protruding wall is arranged at the front end of the horizontal wall body, when the decorative main body part is connected onto the installation part, the decorative main body part can swing relative to the installation part, and the decorative main body part supports the suspended ceiling layer from the lower part of the suspended ceiling layer in a mode that the upward protruding wall or the upward protruding wall and the horizontal wall body act together.

2. The corner mounting structure according to claim 1, further comprising a hook and a hook groove capable of hooking each other, wherein the hook and the hook groove are disposed on the decorative main body and the mounting portion, and when the decorative main body is mounted on the mounting portion, the decorative main body and the mounting portion are connected by the hook and the hook groove to realize relative swinging hook connection.

3. The corner mounting structure according to claim 1, wherein a root portion of the upwardly projecting wall has a thickness smaller than that of the remaining portion so as to facilitate breaking.

4. A corner mounting structure according to claim 1, 2 or 3, wherein the decorative main body portion further comprises an upright wall body, the horizontal wall body is located on an upper side of the decorative main body portion, the upright wall body is located on an inner side of the decorative main body portion, and a bottom end of the upright wall body abuts against an upright wall surface when the decorative main body portion is attached to the mounting portion.

5. The corner mounting structure according to claim 4, wherein an angle between an upper side surface of the horizontal wall body of the decorative main body portion and an inner side surface of the erected wall body is between 80 ° and 110 °.

6. The corner mounting structure according to claim 4, wherein the rear end of the horizontal wall of the decorative main body portion is directly connected to the top end of the erected wall, the front end of the horizontal wall of the decorative main body portion is connected to the bottom end of the erected wall by a bevel edge, and a triangular support structure is formed among the horizontal wall, the erected wall and the bevel edge of the decorative main body portion.

7. The corner mounting structure of claim 6, wherein the bottom end of the beveled edge is provided with a horizontal flat platform.

8. The corner mounting structure of claim 6, wherein the top end of the beveled edge is provided with a vertical upstanding platform.

9. The corner mounting structure of claim 4, wherein a second concave-convex is arranged on an inner side of the upstanding wall.

10. The corner mounting structure according to claim 1, wherein a horizontal bending wall is further provided at a top end of the mounting portion, and when the decorative main body portion is connected to the mounting portion, a coupling groove into which the ceiling laminate can be inserted is formed between the horizontal bending wall of the mounting portion and the horizontal wall of the decorative main body portion.

Technical Field

The invention relates to the technical field of decoration section bar correlation, in particular to a corner mounting structure which is suitable for connecting a suspended ceiling with a wall corner.

Background

Along with the gradual improvement of people's living conditions, people are also gradually high to the house decoration requirement, except that set up smallpox suspended ceiling layer in order to be used for increasing the molding and the pattern decoration on roof, can also set up lighting apparatus in order to adjust the atmosphere effect in the room. However, when the suspended ceiling is installed, the problem of connection transition between the suspended ceiling and the vertical wall elevation is always encountered, and particularly, a large installation gap is often formed at the joint of the suspended ceiling and the vertical wall elevation due to cutting or splicing, and the edges of the suspended ceiling are uneven, so that the overall installation effect of the suspended ceiling is greatly influenced. For this reason people connect through setting up the corner connecting strip structure in the corner, chinese utility model patent like bulletin number CN2437789Y discloses an internal corner decorates aluminum alloy ex-trusions, and it comprises decorative cover (1), holding surface (2) and bottom surface (3), and draw-in groove (4) are constituteed to interior the knot after one side extension of holding surface (2) is leaned on in bottom surface (3), and decorative cover (1) is arcwall face or plane, and it has moulding (5) to open on decorative cover (1), aluminum alloy ex-trusions is decorated to the internal corner simple structure, during the installation directly detain on the decorative cover can, simple to operate. The internal corner decoration aluminum alloy section bar is connected with the wall vertical face through the supporting face (2), and utilizes the clamping groove (4) is connected with the suspended ceiling, the edge part of the suspended ceiling can be used for supporting the bottom face (3), and the section bar can support the suspended ceiling and also solve the problem that the section of the suspended ceiling is exposed.

Because foretell reentrant corner decorates aluminum alloy section bar is integrated into one piece's structure, though its rigid structure is better, but the contained angle of holding surface (2) and bottom surface (3) of section bar all is vertical arrangement generally, but hardly accomplish the wall facade and suspended ceiling complete verticality in actual installation environment, this just causes very easily after the installation form the clearance between holding surface (2) and the wall, perhaps form the clearance between bottom surface (3) and suspended ceiling's lower surface.

Disclosure of Invention

In addition to the above-mentioned problem that an installation gap is easily formed between the supporting surface and the wall surface or between the bottom surface and the lower surface of the suspended ceiling, the integrally formed connecting member also causes an increase in manufacturing cost during manufacturing and post-processing, for example, in order to improve the appearance effect of a product, a surface processing treatment needs to be performed on an exposed part (such as a decorative surface), but the integrally formed structure increases the processing area and causes an increase in manufacturing cost; in order to allow the connecting member to be conveniently connected to the wall, mounting holes are formed in the hanging portions, which may cause wear of the exposed surface during the process.

Aiming at the technical problem, the invention provides a corner mounting structure which comprises a section-shaped mounting part and a section-shaped decoration main body part, wherein a first concave-convex part is arranged on the inner side surface of the mounting part, the mounting part is used for being mounted on a vertical wall, the decoration main body part can be detachably connected to the mounting part, and the decoration main body part is used for jacking a suspended ceiling layer from the lower part; the decorative main body part is characterized by comprising a horizontal wall body, wherein an upward protruding wall is arranged at the front end of the horizontal wall body, when the decorative main body part is connected onto the installation part, the decorative main body part can swing relative to the installation part, and the decorative main body part supports the suspended ceiling layer from the lower part of the suspended ceiling layer in a mode that the upward protruding wall or the upward protruding wall and the horizontal wall body act together.

The mounting part comprises a mounting wall which is vertically arranged, and can form a connection relation with a vertical wall facade through screws or adhesive tapes; also through with decorate the main part combine together the back with the furred ceiling layer forms the relation of connection the top of installation department still is provided with the level wall of bending, works as decorate the main part and be connected to when on the installation department, the level wall of bending of installation department with it can let furred ceiling plywood male combination groove to form between the horizontal wall body of decoration main part.

The inner side face of the mounting portion is provided with a first concave-convex portion, the inner side face is the surface of the mounting portion facing one side of the vertical wall facade, and the first concave-convex portion can increase the bonding and gluing capacity so as to improve the bonding reliability and stability between the inner side face of the mounting portion and the vertical wall facade.

The decoration main body part and the installation part can be matched and connected through a hook and a hook groove, in one embodiment, the decoration main body part is provided with the hook groove, the installation part is provided with the hook, and the hook groove and the hook can be hooked with each other so that the decoration main body part can be installed on the installation part; as an equivalent embodiment, the positions of the hook and the hook groove can be interchanged; this does not, of course, exclude other equivalent embodiments, such as a shaft and bore cooperating to effect the connection.

The upward protruding wall is a thin-wall-shaped structure which is arranged on the horizontal wall body and protrudes upwards to support the suspended ceiling layer, the thickness of the upward protruding wall is basically the same as that of the horizontal wall body, the height of the upward protruding wall is generally set between 1mm and 8mm, and the upward protruding wall can be in closer line contact connection with the lower surface of the suspended ceiling layer when the decoration main body part is combined with the suspended ceiling layer. Furthermore, the thickness of the root part of the upward protruding wall is smaller than the thickness of the rest parts, so that the upward protruding wall is convenient to break off, and the upward protruding wall plays a role in adjustment, so that the corner mounting structure is beneficial to adapting to different mounting environments.

The decoration main body part is detachably connected with the installation part, a structure capable of swinging relatively is arranged between the decoration main body part and the installation part, on one hand, the decoration main body part can be easily installed on the installation part, on the other hand, the decoration main body part is connected to the installation part, and a certain installation gap is formed between the decoration main body part and the installation part, so that the decoration main body part can swing in a certain range. Due to this swinging characteristic, in combination with the shape of the decorative body portion, the decorative body portion and the ceiling layer are given different jacking manners, such as being able to jack the ceiling layer only by the upwardly projecting wall, or being jacked from below the ceiling layer in a manner that the upwardly projecting wall and the horizontal wall act together.

According to the technical scheme, compared with the prior art, the invention has the beneficial technical effects that:

firstly, through the structure that the decoration main body part and the installation part can be detached and relatively swing, and the upward protruding wall arranged at the front end of the horizontal wall body is combined, when the decoration main body part is combined with the ceiling layer, the upward protruding wall at the front end is combined with the lower surface of the ceiling layer to form line contact with a tighter connection effect, and compared with the prior art (CN 2437789Y) that the ceiling layer is supported through the bottom surface, the technical scheme of the invention can reduce the installation gap between the decoration main body part and the ceiling layer;

secondly, the decoration main body part can swing relative to the installation part, so that the connection structure is favorable for reducing the connection and installation difficulty of the decoration main body part and the installation part, and the decoration main body part has certain swing adaptability, so that the decoration main body part can support a jacking ceiling layer through the upward protruding wall and slightly swing downwards to be close to a vertical wall vertical surface through the decoration main body part, meanwhile, the gap between the decoration main body part and the ceiling layer and the gap between the decoration main body part and the vertical wall vertical surface are reduced, and the connection attractiveness of the ceiling layer and a wall body is further improved;

thirdly, the upward protruding wall can be used as a supporting structure for supporting the suspended ceiling layer independently or together with the horizontal wall body, so that the suspended ceiling layer can be effectively supported, and the connection stability between the suspended ceiling layer and the wall body can be improved;

fourth, decorate the main part and be connected for dismantling with the installation department, this two parts of being convenient for can independently process separately, and this area of having reduced the surface treatment of component on the one hand effectively reduces the processing cost, and on the other hand is then right the installation department need not to protect the main part of decorating in particular when carrying out stamping process, effectively reduces parts machining's the degree of difficulty and loss, reaches the purpose that reduces processing and installation cost.

The decorative main body part is used as a component for supporting the suspended ceiling layer, in order to enhance the structural strength of the decorative main body part, a further technical scheme can be that the decorative main body part further comprises an erecting wall body, the horizontal wall body is positioned on the upper side of the decorative main body part, the erecting wall body is positioned on the inner side of the decorative main body part, and when the decorative main body part is connected to the installation part, the bottom end of the erecting wall body is abutted against the erecting wall face. Through the abutting of the vertical wall body and the vertical wall face, the decoration main body part is favorable for supporting the suspended ceiling layer, and the exposed gap between the decoration main body part and the vertical wall face is also favorable for being reduced. In order to increase the connection strength between the vertical wall body and the vertical wall facade, a further technical scheme can be that a second concave-convex part is arranged on the inner side surface of the vertical wall body. The functional purpose of the second concave-convex is the same as that of the first concave-convex.

The technical scheme can be that the rear end of the horizontal wall body of the decorative main body part is directly connected with the top end of the vertical wall body, the front end of the horizontal wall body of the decorative main body part is connected with the bottom end of the vertical wall body through a bevel edge, and a triangular supporting structure is formed among the horizontal wall body, the vertical wall body and the bevel edge of the decorative main body part; the triangular structure is beneficial to increasing the structural strength of the decorative main body part and improving the connection stability with the suspended ceiling layer. Wherein the hypotenuse is decorate the main limit that exposes of main part, through the adjustment the shape of hypotenuse can let ceiling system produce the molding of different styles, if the bottom of hypotenuse is provided with horizontally horizontal platform portion, perhaps again the top of hypotenuse is provided with vertical platform portion of erectting.

The decorative main body portion is provided with an upward protruding wall, and can swing at a certain angle in order to bear the ceiling layer and the vertical wall elevation, and a technical scheme of the decorative main body portion can also ensure that an included angle between the upper side surface and the inner side surface of the vertical wall body is 80-110 degrees, and the commonly used included angle is 80 degrees, 85 degrees, 93 degrees, 95 degrees, 98 degrees, 100 degrees, 105 degrees and 110 degrees. After the decoration main body part is installed on the installation part, the decoration main body part swings downwards by a certain angle, on one hand, the included angle between two side surfaces is generally not less than 80 degrees, so that the upward protruding wall can support the ceiling layer from the lower part, and the lower end part of the vertical wall body can be pressed against the vertical surface of the vertical wall; on the other hand, the included angle between the two side surfaces is generally set to be not more than 110 degrees, in order to make the upward protruding wall not support the ceiling layer too high to cause the problem that the ceiling layer is not flat, and the included angle between the two side surfaces is set to be 80 degrees to 110 degrees in consideration of the above. From the product manufacturing perspective, the arrangement greatly reduces the manufacturing precision of the decoration main body part, and is beneficial to prolonging the service life of the die and reducing the manufacturing cost.

The present invention, having the above-described features and advantages, can be applied to a corner mounting structure therefor.

Drawings

Fig. 1 is a schematic axial-direction structure view of the corner mounting structure;

FIG. 2 is a schematic sectional view of the mounting portion in a front view;

FIG. 3 is a schematic sectional view of the decorative main body;

FIG. 4 is a schematic front sectional view of the corner mounting structure, showing a first embodiment;

FIG. 5 is a schematic front sectional view of the corner mounting structure, showing a second embodiment;

fig. 6 is a schematic structural view of a cross section in a front view of the corner mounting structure, showing a third embodiment.

Detailed Description

When the suspended ceiling is installed, the corner installation structure can be used for well solving the problem of connection transition between the suspended ceiling layer 1 and the vertical wall vertical surface 2, and in order to further improve the connection effect between the corner installation structure and the suspended ceiling layer 1 and the vertical wall vertical surface 2, the corner installation structure applying the technical scheme of the invention is further described below by combining the attached drawings. Various implementation details disclosed below may be selectively applied or combined in one embodiment even if not directly related or synergistic in functional terms, except where expressly specified to belong to equivalent or alternative embodiments.

As shown in fig. 1 and 4, the corner mounting structure is disposed at a corner of the suspended ceiling layer 1 and the vertical wall surface 2, the corner mounting structure includes a profile-shaped mounting portion 3 and a profile-shaped decorative main body portion 4, the mounting portion 3 is used for being mounted on the vertical wall surface 2, the decorative main body portion 4 can be detachably connected to the mounting portion 3, and the decorative main body portion 4 is used for supporting the suspended ceiling layer 1 from below, so that the corner mounting structure not only becomes a corner connecting member for connecting the suspended ceiling layer 1 and the vertical wall surface 2, but also plays a role in supporting the suspended ceiling layer 1 at an edge. Detachable connection structure not only lets installation department 3 carries out the machine tooling more convenient simultaneously, still is favorable to the protection decorate the outward appearance surface of main part 4 and fall the end surface treatment expense. Because the installation part 3 is mainly used for connection and is not an appearance surface, the installation part can be arranged at intervals when in use, and compared with the traditional corner connecting piece, the use of materials can be greatly reduced, so that the use cost is reduced.

As shown in fig. 1 and 2, the mounting portion 3 includes a mounting wall 31 arranged vertically, and a mounting hole is formed in the mounting wall 31, through which a screw can pass to fixedly connect the mounting portion 3 to the vertical wall 2; a first concave-convex part 34 is further arranged on the inner side surface of the mounting part 3, wherein the inner side surface of the mounting part 3 refers to the surface facing one side of the vertical wall face 2; the first concave-convex 34 is arranged to increase the combination friction force of the mounting part 3 and the wall surface. The mounting part 3 can be connected to the vertical wall face 2 through an adhesive, and the first concave-convex part 34 can increase the bonding and gluing capacity so as to improve the bonding reliability and stability between the inner side surface of the mounting part 3 and the vertical wall face 2. The mounting portion 3 is connected to the decorative main body portion 4 in addition to the upright wall facade 2 to provide support for the suspended ceiling layer 1. For better connecting with the plywood of furred ceiling layer, installation department 3 still including set up in the horizontal wall 32 that bends on installation wall 31 top, when decoration main part 4 is connected to when on the installation department 3, the horizontal wall 32 that bends of installation department 3 with form between the horizontal wall body 41 of decoration main part 4 and can let the inserted combination groove 30 of the plywood of furred ceiling layer 1, through horizontal wall 32 that bends can also inject the upward movement of furred ceiling layer 1.

As shown in fig. 1 and 3, the decorative main body 4 includes a horizontal wall 41 and an upright wall 42, the horizontal wall 41 is located on the upper side of the decorative main body 4, the upright wall 42 is located on the inner side of the decorative main body 4, when the decorative main body 4 is connected to the mounting portion 3, the inner side of the upright wall 42 abuts against the upright wall 2, and the horizontal wall 41 and the horizontal bent wall 32 form the combination groove. The upright wall body 42 is abutted against the upright wall vertical surface 2, so that the decoration main body part 4 is favorable for supporting the suspended ceiling layer 1, and the exposed gap between the decoration main body part 4 and the upright wall vertical surface 2 is also favorable for reducing. In order to increase the stability of the connection between the upright wall 42 and the upright wall 2, a second recess 47 is also arranged on the inner side of the upright wall 42, which recess has the same function as the first recess 34.

In order to enhance the structural strength of the decorative main body 4, the rear end of the horizontal wall 41 of the decorative main body 4 is directly connected with the top end of the vertical wall 42, the front end of the horizontal wall 41 of the decorative main body 4 is connected with the bottom end of the vertical wall 42 by a bevel edge 43, and a triangular supporting structure is formed among the horizontal wall 41, the vertical wall 42 and the bevel edge 43 of the decorative main body 4; this triangular configuration is advantageous in increasing the structural strength of the decorative body portion 4, while also providing a stable support for the suspended ceiling layer 1.

The horizontal wall body 41 is used for supporting the suspended ceiling layer 1, and since the upper surface of the horizontal wall body 41 is in surface contact connection with the lower surface of the suspended ceiling layer 1, a gap is easily formed between the contact surfaces, which greatly affects the appearance effect at the corner. As shown in fig. 1 to 3, an upward protruding wall 5 is provided at the front end of the horizontal wall 41, the upward protruding wall 5 is provided at the upper front end of the decorative main body 4, and the outer surface thereof may be a surface that is connected to the horizontal wall 41 alone or arranged at the intersection of the horizontal wall 41 and the oblique side 43. The upward protruding wall 5 protrudes to be higher than the upper surface of the horizontal wall body, the protruding height of the upward protruding wall 5 is generally set to be 1 mm-8 mm, the upward protruding wall 5 is arranged to enable the upward protruding wall 5 to firstly contact the ceiling layer 1 to form a line contact with a tighter connection effect, and therefore the gap between the decoration main body part 4 and the ceiling layer 1 is favorably reduced.

Further, as shown in fig. 1 to 3, the decoration main body portion 4 and the installation portion 3 are connected by matching a hook 33 and a hook groove 44, the hook groove 44 is arranged on the decoration main body portion 4, the hook groove 44 is arranged at the intersection of the horizontal wall body 41 and the vertical wall body 42, the hook 33 is arranged on the installation portion 3, the hook 33 is arranged at the lower end portion of the installation wall 31, and the hook groove 44 and the hook 33 can be hooked with each other; when the decoration main body part 4 is installed on the installation part 3, the decoration main body part 4 is connected with the installation part 3 through the hook 33 and the hook groove 44 to realize the hook of relative swing. In another equivalent embodiment, the hooks 33 and the hook grooves 44 are interchangeable in position, and the decorative main body portion 4 can be movably connected to the mounting portion 3. Such connection structure is favorable to reducing both connection installation degree of difficulty on the one hand, and on the other hand lets decoration main part 4 has certain self-adaptability, and this kind of wobbling connected mode can enough pass through upwards protruding wall 5 supports top support furred ceiling layer 1, can pass through again decoration main part 4 makes the swing downwards slightly and presses close to erects wall facade 2, has reduced simultaneously decoration main part 4 and furred ceiling between the layer 1 clearance and decoration main part 4 and erect the clearance between the wall facade 2, has further improved furred ceiling layer 1 and wall connection's aesthetic property.

Further, because hypotenuse 43 is the main limit that exposes of decoration main part 4, can let suspended ceiling system produce the molding and the structural strength of different styles through adjusting the shape of hypotenuse 43, for example the bottom of hypotenuse 43 is provided with horizontal platform portion 45, perhaps the top of hypotenuse 43 is provided with vertical platform portion 46 of erectting again.

The connection of the corner mounting structure is further described below in three general embodiments.

In the first embodiment, as shown in fig. 4, the mounting portion 3 is fixedly connected to the vertical wall 2 by screws, the hook 33 is disposed at the lower end of the mounting wall 31, the T-shaped hook 33 includes a horizontal hook arm 331 and a vertical hook arm 332, and the vertical hook arm 332 is arranged in parallel with the mounting wall 31. The decorative main body part 4 is connected to the mounting part 3 through the hook groove 44, the hook groove 44 is arranged at the upper end part of the vertical wall body 42, the hook 33 is matched with the hook groove 44, the hook groove 44 is a T-shaped groove, the hook groove 44 comprises a transverse hook groove 441 and a vertical hook groove 442, and the vertical hook groove 442 is arranged in parallel with the mounting wall 31. The hook slot 442 is sized slightly larger than the hook arm 332 so that when the decorative body portion 4 is attached to the mounting portion 3, the decorative body portion 4 can swing relative to the mounting portion 3 at an angle generally defined by the mounting gap between the hook slot 44 and the hook 33. The arrangement has the advantages that when the included angle between the suspended ceiling layer 1 and the vertical wall face 2 is approximately right-angled, the decoration main body part 4 can swing relatively downwards to be attached to the vertical wall face 2, so that the gap between the decoration main body part 4 and the vertical wall face 2 is reduced; as shown in fig. 4, since the upward protruding wall 5 is provided at the front end of the horizontal wall 41, the ceiling layer 1 can be supported by the upward protruding wall 5 alone from below the ceiling layer 1, although the decorative main body 4 swings downward at a certain angle.

In a second embodiment, as shown in fig. 5, based on the first embodiment, the vertical hook arm 332 on the hook 33 is inclined, that is, the upper portion thereof is inclined outward and the lower portion thereof is swung inward, and the vertical hook arm 332 and the mounting wall 31 form an included angle, which is generally set to be between 2 and 10 degrees; the upright hook groove 442 of the decorative main body 4 is vertically arranged, and when the decorative main body 4 is connected to the mounting portion 3, the decorative main body 4 can swing relative to the mounting portion 3, and has an initial inward swing angle, so that when the included angle between the ceiling layer 1 and the upright wall surface 2 is larger than a right angle, the lower end of the upright wall 42 of the decorative main body 4 can swing outwards relative to the mounting portion 3 while abutting against the upright wall surface 2, and the upward projecting wall 5 and the horizontal wall 41 support the ceiling layer 1 from below the ceiling layer 1 in a coacting manner under the condition that the swing angle of the decorative main body 4 is larger and the projecting height of the upward projecting wall 5 is smaller; this not only further reduces the gap between the decorative main body 4 and the upright wall surface 2, but also ensures that the ceiling layer 1 can be supported.

In a third embodiment, as shown in fig. 6, as an equivalent connection mode between the decoration main body portion 4 and the installation portion 3, the hook groove 44 is provided at the lower end portion of the installation wall 31 and is arranged perpendicular to the installation wall 31, the hook 33 is provided at the inner end portion of the horizontal wall 41 and is arranged parallel to the horizontal wall 41, and when the decoration main body portion 4 is connected to the installation portion 3, the decoration main body portion 4 can swing relative to the installation portion 3. In order to further ensure the connection effect, the angle between the upper side surface of the horizontal wall body 41 of the decorative main body part 4 and the inner side surface of the vertical wall body 42 is between 80 and 110 degrees. As shown in fig. 6, the included angle between the two side surfaces is 100 °, the height of the upward protruding wall 5 provided at the front end of the horizontal wall 41 is 2mm, when the decorative main body 4 is connected to the mounting portion 3, the lower end of the vertical wall 42 abuts against the vertical wall 2, and the upward protruding wall 5 supports the ceiling layer 1 at the lower side, so that the decorative main body 4 is well bonded to the ceiling layer 1 and the vertical wall 2, and the connection gap between the two joints is greatly reduced. Further, the thickness of the root of the upward convex wall 5 is smaller than that of the rest part so as to facilitate breaking, so that when the edge of the suspended ceiling layer 1 is jacked up too high, the upward convex wall 5 can be broken to ensure the overall flatness of the suspended ceiling layer 1.

Of course, the above three embodiments are only common embodiments, and each solution is not necessarily implemented independently, and some details in each solution may also be used in combination. For example, the inclined hook arm 332 of the mounting portion 3 may be combined with the case where the angle between the upper side surface of the horizontal wall 41 of the decorative main body portion 4 and the inner side surface of the vertical wall 42 is 80 °, and this new embodiment, which is developed by combination, is also within the scope of the present invention.