阅读说明：本技术 一种空调位置回风口跌级吊顶模块及其安装方法 (Air conditioner position return air inlet drop ceiling module and installation method thereof ) 是由 丁欣欣 丁泽成 周东珊 操婷 蔡帅帅 于 2021-08-16 设计创作，主要内容包括：本发明公开了一种空调位置回风口跌级吊顶模块及其安装方法,该吊顶模块包括跌级底板、收口件、百叶窗、跌级立板和跌级立板安装连接件,本发明的一种空调位置回风口跌级吊顶模块由跌级底板、收口件、百叶窗、跌级立板和跌级立板安装连接件通过卡接装配而成,组装简单、方便,可实现空调位置回风口跌级吊顶模块的快速安装。此外,对跌级底板上的回风口用收口件进行收口,同时该收口件内还可固定安装百叶窗,通过该收口件可将百叶窗牢固地固定在回风口内,避免百叶窗从回风口内脱落,提升空调位置回风口处的安全性。收口件与百叶窗和跌级底板的回风口边缘之间的固定安装均为卡接操作,无需打钉,安装过程简单方便,且安装后吊顶饰面效果更美观。(The invention discloses an air conditioner position return air inlet drop ceiling module and an installation method thereof. In addition, close up with closing up the piece to the return air inlet on the falling level bottom plate, but fixed mounting shutter in this closing up piece simultaneously, can firmly fix the shutter in the return air inlet through this closing up piece, avoid the shutter to drop from the return air inlet, promote the security of air conditioner position return air inlet department. The fixed mounting between the closing piece and the edges of the air return openings of the shutter and the falling-level bottom plate is clamping operation, nailing is not needed, the mounting process is simple and convenient, and the ceiling decorative surface effect is more attractive after mounting.)

1. The utility model provides an air conditioner position return air inlet falls level furred ceiling module which characterized in that includes:

the falling-level bottom plate is provided with an air return inlet; a first clamping structure is arranged on one side of the drop-level bottom plate;

a mouth piece comprising a first plate body, a second plate body and a third plate body; the second plate body is parallel to the first plate body, two ends of the third plate body are fixedly connected with the first plate body and the second plate body respectively, and a first clamping groove and a second clamping groove are formed between two sides of the third plate body and the first plate body and between two sides of the third plate body and the second plate body respectively; the closing part is clamped at the edge of the air return inlet through the second clamping groove;

the periphery of the shutter is clamped in the first clamping groove;

the cascade vertical plate consists of a first transverse plate and a first vertical plate which are connected in an L shape; the lower bottom surface of the first vertical plate is provided with a first clamping part which is matched and clamped with the first clamping structure; a second clamping structure is arranged on the side surface of the first transverse plate; and

the falling-level vertical plate is provided with a connecting piece, and a second clamping part which is matched and clamped with the second clamping structure is arranged on the falling-level vertical plate; the falling-level vertical plate mounting and connecting piece is connected to the suspended ceiling base layer component through Z-shaped steel.

2. The air conditioner position return air inlet drop ceiling module according to claim 1, wherein an elastic piece is arranged in the first clamping groove, and one end of the elastic piece is fixedly connected to the third plate body.

3. The air conditioner position return air inlet drop ceiling module according to claim 2, wherein a plurality of protruding portions are arranged on the inner side wall of the second clamping groove, the protruding portions are arranged on the second plate body at intervals, and a gluing groove is formed between every two adjacent protruding portions.

4. The air conditioner position return air inlet drop level ceiling module as claimed in claim 3, wherein the width of the first plate body is greater than the width of the second plate body.

5. The air conditioner position return air inlet drop level ceiling module as claimed in claim 4, wherein the cross section of the first plate body and the cross section of the second plate body are both in the shape of an isosceles trapezoid, and the base angle of the isosceles trapezoid is 45 degrees.

6. The air conditioner position return air inlet drop level ceiling module according to claim 1, wherein the drop level riser mounting connection comprises:

a vertical plate;

one end of the connecting transverse plate is vertically connected with one end of the vertical plate in an L shape, and the connecting transverse plate is used for being connected with the Z-shaped steel;

one end of the lapping transverse plate is vertically connected with the other end of the vertical plate in an L shape, and the first transverse plate is lapped on the lapping transverse plate; the lap joint transverse plate and the connecting transverse plate are respectively positioned at two opposite sides of the vertical plate; and

one end of the splicing transverse plate is vertically connected with the vertical plate in a T shape, and the splicing vertical plate and the lapping transverse plate are positioned on the same side of the vertical plate; the second clamping part is formed by the inserting transverse plate; the second clamping structure is a clamping groove formed in the side face of the first transverse plate.

7. The air conditioner position return air inlet drop ceiling module according to claim 6, wherein a first clamping limiting portion is arranged at the end portion of the insertion transverse plate, and a second clamping limiting portion matched with the first clamping limiting portion for limiting is arranged in the clamping groove.

8. The air conditioner position return air inlet drop ceiling module according to claim 7, wherein the first clamping limiting part is a limiting protrusion arranged at the end part of the splicing transverse plate, and the second clamping limiting part is a limiting groove arranged in the clamping groove.

9. The air conditioner position return air inlet drop-level ceiling module as claimed in claim 1, wherein the first clamping structure is a protruding platform arranged in the extension direction of the length of the drop-level bottom plate and a protruding plug-in connector arranged on the protruding platform; the protruding plug divides the protruding platform into a first platform and a second platform, and the thickness of the first platform is greater than that of the second platform.

10. The method for installing the air conditioner position return air inlet drop ceiling module as claimed in any one of claims 1 to 9, is characterized by comprising the following steps:

installing a suspended ceiling base layer component;

securing one end of Z-shaped steel to the ceiling base member;

fixedly installing a closing piece and a shutter on an air return opening of the falling-level bottom plate;

and clamping and assembling the falling-stage bottom plate and the falling-stage vertical plate, and fixing the assembled falling-stage vertical plate to the other end of the Z-shaped steel through a falling-stage vertical plate mounting connecting piece.

Technical Field

The invention relates to the technical field of architectural decoration, in particular to a drop-level ceiling module for an air return opening of an air conditioner position and an installation method thereof.

Background

Along with the rapid development of assembly decoration, the industrial production and the modularized installation in the architectural decoration field are more and more popular, and the decoration of the suspended ceiling is gradually changed from the traditional installation mode of a gypsum board to the installation direction of a plate-shaped suspended ceiling. The installation of an air-conditioning return air inlet is an important content in the installation of a ceiling board, the existing air-conditioning return air inlet usually adopts an embedded installation mode from top to bottom, a door hole is formed in a ceiling material such as a gypsum board, and the edge of a return air inlet cover plate is clamped above the edge of the door hole. The air return inlet of this kind of structural design is in the use, and when room door and window opened, the apron of air return inlet department took place to remove very easily when bearing the wind pressure, probably caused the air return inlet apron to drop from the door opening, had great potential safety hazard, and the security is lower. In addition, the edges of the gypsum boards with the door holes are not subjected to closing-up treatment, the appearance effect is not ideal, and the integral attractiveness of the suspended ceiling is affected.

Chinese patent CN201922353577.1 discloses a closing node structure for connecting an air outlet at the edge of a partition wall and a metal plate ceiling, which comprises a ceiling keel, a hanging piece, a metal plate, a hanging piece, the partition wall, an air outlet, an L-shaped edge-closing strip and a wood keel; the ceiling keel is matched and connected with the metal plate through a hanging piece, the hanging piece is a special hanging and connecting piece for the metal plate, one end of the hanging piece is connected with the ceiling keel through a bolt, and the other end of the hanging piece is matched and connected with a hanging groove structure which is matched and connected with a hanging hook structure vertically extending upwards from the peripheral edge of the metal plate; an air outlet is arranged between the partition wall and the end part of the metal plate and is connected with an air pipe in the metal plate ceiling, and the air outlet is 100mm higher than the surface of the metal plate; the air outlet bottom both sides are equipped with L type receipts strake, and both sides L type receipts strake base lock joint is on air outlet both sides bottom surface, and one side L type receipts strake side adopts the hook structure that articulates of screw and metal sheet to be connected, and opposite side L type receipts strake side adopts the screw to be connected with the wood fossil fragments of fixing on the partition wall. According to the air outlet structure, the L-shaped edge folding strip is adopted to edge the edge of the air outlet, and screws are needed to fasten in the installation process of the L-shaped edge folding strip, so that nailing operation is increased, and the attractiveness of the edge can be affected by the leakage of the screws; in addition, the L-shaped edge folding strip is not suitable for the edge folding of the louver window arranged at the air outlet.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide an air conditioner position return air inlet drop ceiling module and an installation method thereof. In order to solve the problems, the invention adopts the following technical scheme:

an air conditioner position return air inlet drop level ceiling module, comprising:

the falling-level bottom plate is provided with an air return inlet; a first clamping structure is arranged on one side of the drop-level bottom plate;

a mouth piece comprising a first plate body, a second plate body and a third plate body; the second plate body is parallel to the first plate body, two ends of the third plate body are fixedly connected with the first plate body and the second plate body respectively, and a first clamping groove and a second clamping groove are formed between two sides of the third plate body and the first plate body and between two sides of the third plate body and the second plate body respectively; the closing part is clamped at the edge of the air return inlet through the second clamping groove;

the periphery of the shutter is clamped in the first clamping groove;

the cascade vertical plate consists of a first transverse plate and a first vertical plate which are connected in an L shape; the lower bottom surface of the first vertical plate is provided with a first clamping part which is matched and clamped with the first clamping structure; a second clamping structure is arranged on the side surface of the first transverse plate; and

the falling-level vertical plate is provided with a connecting piece, and a second clamping part which is matched and clamped with the second clamping structure is arranged on the falling-level vertical plate; the falling-level vertical plate mounting and connecting piece is connected to the suspended ceiling base layer component through Z-shaped steel.

Preferably, an elastic piece is arranged in the first clamping groove, and one end of the elastic piece is fixedly connected to the third plate body.

Preferably, be equipped with a plurality of bellyings on the inside wall of second joint recess, it is a plurality of the bellyings interval sets up on the second plate body, adjacent two it beats gluey recess to form between the bellyings.

Preferably, the width of the first plate body is greater than the width of the second plate body.

Preferably, the cross sections of the first plate body and the second plate body are both in an isosceles trapezoid shape, and the base angle of the isosceles trapezoid is 45 degrees.

Preferably, the drop stage riser mount connection comprises:

a vertical plate;

one end of the connecting transverse plate is vertically connected with one end of the vertical plate in an L shape, and the connecting transverse plate is used for being connected with the Z-shaped steel;

one end of the lapping transverse plate is vertically connected with the other end of the vertical plate in an L shape, and the first transverse plate is lapped on the lapping transverse plate; the lap joint transverse plate and the connecting transverse plate are respectively positioned at two opposite sides of the vertical plate; and

one end of the splicing transverse plate is vertically connected with the vertical plate in a T shape, and the splicing vertical plate and the lapping transverse plate are positioned on the same side of the vertical plate; the second clamping part is formed by the inserting transverse plate; the second clamping structure is a clamping groove formed in the side face of the first transverse plate.

Preferably, the tip of grafting diaphragm is equipped with the spacing portion of first joint, the joint inslot be equipped with the spacing portion of second joint of the spacing portion cooperation of first joint.

Preferably, the first clamping limiting part is arranged at the end part of the splicing transverse plate in a limiting mode, and the second clamping limiting part is arranged at the end part of the splicing transverse plate in a limiting groove in the clamping groove.

Preferably, the first clamping structure is a protruding platform arranged in the extension direction of the length of the drop stage bottom plate and a protruding plug connector arranged on the protruding platform; the protruding plug divides the protruding platform into a first platform and a second platform, and the thickness of the first platform is greater than that of the second platform.

The invention also provides an installation method of the air conditioner position return air inlet drop-level ceiling module, which comprises the following steps:

installing a suspended ceiling base layer component;

securing one end of Z-shaped steel to the ceiling base member;

fixedly installing a closing piece and a shutter on an air return opening of the falling-level bottom plate;

and clamping and assembling the falling-stage bottom plate and the falling-stage vertical plate, and fixing the assembled falling-stage vertical plate to the other end of the Z-shaped steel through a falling-stage vertical plate mounting connecting piece.

Compared with the prior art, the invention has the technical effects that:

the air conditioner position return air inlet falling-level ceiling module is formed by clamping and assembling a falling-level bottom plate, a closing-in piece, a shutter, a falling-level vertical plate and a falling-level vertical plate mounting connecting piece, is simple and convenient to assemble, and can realize quick mounting of the air conditioner position return air inlet falling-level ceiling module. In addition, close up with closing up the piece to the return air inlet on the falling level bottom plate, but fixed mounting shutter in this closing up piece simultaneously, can firmly fix the shutter in the return air inlet through this closing up piece, avoid the shutter to drop from the return air inlet, promote the security of air conditioner position return air inlet department. The fixed mounting between the closing piece and the edges of the air return openings of the shutter and the falling-level bottom plate is clamping operation, nailing is not needed, the mounting process is simple and convenient, and the ceiling decorative surface effect is more attractive after mounting.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

It will be appreciated by those skilled in the art that the objects and advantages that can be achieved with the present invention are not limited to the specific details set forth above, and that these and other objects that can be achieved with the present invention will be more clearly understood from the detailed description that follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. Many aspects of the invention will be better understood with reference to the following drawings. The components in the drawings are not necessarily to scale, emphasis instead being placed upon clearly illustrating the principles of the present invention. In the drawings:

fig. 1 is a schematic overall structural diagram of a drop-level ceiling module of an air-conditioning position air return inlet according to an embodiment of the present invention;

FIG. 2 is a schematic view of a portion A of FIG. 1;

FIG. 3 is a schematic view of a portion of the enlarged structure at B in FIG. 1;

FIG. 4 is a schematic top view of a portion of the return air inlet of FIG. 1;

FIG. 5 is a schematic diagram of the structure of the cascade floor of FIG. 1;

FIG. 6 is a side view of FIG. 5;

FIG. 7 is a schematic view of the construction of the mouthpiece of FIG. 1;

FIG. 8 is a side view of FIG. 7;

FIG. 9 is a structure of a drop riser installation connection of FIG. 1;

fig. 10 is a side view of fig. 9.

In the figure, 1, a falling bottom plate, 2, a closing piece, 3, a louver, 4, a falling vertical plate, 5, a falling vertical plate installation connecting piece, 6, Z-shaped steel, 7, an elastic piece, 8, a suspender, 9, a ceiling panel, 101, an air return opening, 102, a first clamping structure, 201, a first plate body, 202, a second plate body, 203, a third plate body, 204, a first clamping groove, 205, a second clamping groove, 206, a bulge, 207, a gluing groove, 401, a first transverse plate, 402, a first vertical plate, 501, a vertical plate, 502, a connecting transverse plate, 503, a lap joint transverse plate, 504, a splicing transverse plate 1023, 1021, a protruding platform, a protruding splicing head, a first platform, 1024, a second platform, 4011, a second clamping structure, 4012, a second clamping limiting part, 4021, a first clamping part, 5041, a first clamping limiting part, a width of the first plate body, b, a width of the second plate body, c. the thickness of the first platform, d, the thickness of the second platform.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It should be noted that, in order to avoid obscuring the present invention with unnecessary detail, only the structures and/or process steps closely related to the scheme according to the present invention are shown in the drawings, and other details not so related to the present invention are omitted.

In addition, it should be noted that, in the embodiments of the present invention, the term "connected" may be a straight connection or an indirect connection with an additional connecting member in between, unless otherwise specified. In addition, the terms "upper", "lower", "left", "right", "front" and "rear" are only based on the positions shown in the drawings, and are used for more clearly describing the connection relationship of the components in the drawings, and do not constitute a limitation of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals denote the same or similar parts, or the same or similar steps.

Examples

The embodiment of the invention provides a drop-level ceiling module for an air return opening of an air conditioner position, which is structurally shown in figures 1-10. A falling-level ceiling module of an air conditioner position air return inlet comprises a falling-level bottom plate 1, a closing-in piece 2, a louver 3, a falling-level vertical plate 4 and a falling-level vertical plate mounting connecting piece 5, wherein an air return inlet 101 is formed in the falling-level bottom plate 1 (the structure is shown in figures 5 and 6), and a first clamping structure 102 is arranged on one side of the falling-level bottom plate 1; the closing-in member 2 (the structure is shown in fig. 7 and 8) comprises a first plate body 201, a second plate body 202 and a third plate body 203; the second plate body 202 is arranged in parallel with the first plate body 201, two ends of the third plate body 203 are fixedly connected with the first plate body 201 and the second plate body 202 respectively, and a first clamping groove 204 and a second clamping groove 205 are formed between two sides of the third plate body 203 and the first plate body 201 and between two sides of the third plate body 203 and the second plate body 202 respectively; the closing part 2 is clamped at the edge of the air return opening 101 through a second clamping groove 205; the periphery of the shutter 3 is clamped in the first clamping groove 204; the falling-level vertical plate 4 consists of a first transverse plate 401 and a first vertical plate 402 which are connected in an L shape; a first clamping portion 4021 which is matched and clamped with the first clamping structure 102 is arranged on the lower bottom surface of the first vertical plate 402; a second clamping structure 4011 is arranged on the side surface of the first transverse plate 401; a second clamping part which is matched and clamped with the second clamping structure 4011 is arranged on the falling-stage vertical plate mounting connecting piece 5 (the structure is shown in fig. 9 and 10); the falling-level vertical plate mounting and connecting piece 5 is connected to the suspended ceiling base layer component through Z-shaped steel 6. The suspended ceiling base component is a common suspended ceiling mounting structure and is formed by assembling square steel, hanging pieces, a T-shaped keel, a suspended ceiling panel connecting piece, a hanging rod 8 and a suspended ceiling panel 9, as shown in figure 1.

The air conditioner position return air inlet drop ceiling module is formed by clamping and assembling a drop bottom plate 1, a closing piece 2, a shutter 3, a drop vertical plate 4 and a drop vertical plate mounting connecting piece 5, is simple and convenient to assemble, and can realize quick mounting of the air conditioner position return air inlet drop ceiling module. In addition, the air return opening 101 on the falling-level bottom plate 1 is closed by the closing-in piece 2, meanwhile, the louver 3 can be fixedly installed in the closing-in piece 2, the louver 3 can be firmly fixed in the air return opening 101 through the closing-in piece 2, the louver 3 is prevented from falling off from the air return opening 101, and the safety of the air return opening at the air conditioner position is improved. The fixed mounting between the closing piece 2 and the shutter 3 and the edge of the air return opening 101 of the falling-level bottom plate 1 is clamping operation, nailing is not needed, the mounting process is simple and convenient, and the ceiling decorative surface effect is more attractive after mounting.

In order to improve the structural stability of the air conditioner position return air inlet drop-level ceiling module and prevent the air conditioner position return air inlet drop-level ceiling module from deforming or being damaged due to unstable self structure in the later use process, the drop-level bottom plate 1 and the drop-level vertical plate 4 of the embodiment of the invention are integrally extruded pieces, and the internal extrusion cavities of the integrally extruded pieces are formed by sequentially arranging a plurality of triangular cavities, so that the triangular extrusion cavities have better structural stability compared with common honeycomb plates, square cavity extrusion plates or round cavity extrusion plates, and the plates are less prone to arching deformation under the stress condition. The structure of the extrusion triangular cavity is shown in figures 1-3, 5 and 6.

Preferably, an elastic member 7 is disposed in the first clamping groove 204, and one end of the elastic member 7 is fixedly connected to the third plate 203, as shown in fig. 8. The elastic piece 7 can be a spring, the closing-in piece 2 of the invention is integrally H-shaped, and when the closing-in piece 2 of the invention is closed and installed with the drop-level bottom plate 1, the following installation method can be adopted: firstly, 45-degree cutting and 45-degree splicing are carried out on the side edges of the four closing parts 2; then, the four closing parts 2 are sequentially arranged on the rectangular edge of the air return opening 101 of the drop-level bottom plate 1 by virtue of the second clamping grooves 205; and finally, installing the shutter 3, namely, inserting the shutter 3 into the upper part of the inner side of the air return opening 101 in an inclined mode, inserting the shutter 3 into the first clamping groove 204 of the closing piece 2 from top to bottom in an inclined mode, applying pressure to the elastic piece 7 to compress the space of the elastic piece 7, inserting the other end of the shutter 3 into the first clamping groove 204 of the closing piece 2 on the other side, releasing the pressure, adjusting the position of the shutter 3, and completing installation.

Preferably, a plurality of protrusions 206 are disposed on an inner side wall of the second clamping groove 205, the plurality of protrusions 206 are disposed on the second plate 202 at intervals, and a gluing groove 207 is formed between two adjacent protrusions 206. During installation, glue can be injected into the glue injecting groove 207 to strengthen the firmness of connection between the edge of the air return opening 101 of the closing piece 2 and the drop-level bottom plate 1. The concave-convex structure formed by the plurality of convex parts 206 can avoid glue overflow on one hand, and can prevent the infirm bonding caused by too small glue applying amount on the other hand.

Preferably, the width a of the first plate is greater than the width b of the second plate, so that the first plate 201 protrudes from a portion of the second plate 202 in the width direction, as shown in fig. 8, the protruding portion can form an overlapping platform, and after the louver 3 is snapped into the first snapping groove 204, the louver 3 can be prevented from falling off from the air return opening 101 under the action of its own gravity, and the safety of the air return opening 101 can be improved.

Preferably, the cross section of each of the first plate body 201 and the second plate body 202 is in the shape of an isosceles trapezoid, and the base angle of the isosceles trapezoid is 45 °. Like this, when the receipts mouthful piece 2 is installing, need not the scene and carry out 45 cutting to closing up piece 2 again, the side of two adjacent receipts mouthful pieces 2 that the preforming is good can splice each other 45, and 45 the close up piece 2 of design has the commonality, as shown in fig. 4, fig. 7, take place mutual interference phenomenon when preventing the side concatenation of two adjacent receipts mouthful pieces 2 for the side piece of two adjacent receipts mouthful pieces 2 is neat, pleasing to the eye.

Preferably, the stepped riser installation connecting piece 5 of the present invention comprises a riser 501, a connecting transverse plate 502, a bridging transverse plate 503 and a plugging transverse plate 504, and the structure is shown in fig. 9 and 10. One end of the connecting transverse plate 502 is vertically connected with one end of the vertical plate 501 in an L shape, and the connecting transverse plate 502 is used for being connected with the Z-shaped steel 6; one end of the lapping transverse plate 503 is vertically connected with the other end of the vertical plate 501 in an L shape, and the first transverse plate 401 is lapped on the lapping transverse plate 503; the lapping transverse plate 503 and the connecting transverse plate 502 are respectively positioned at two opposite sides of the vertical plate 501; one end of the insertion transverse plate 504 is vertically connected with the vertical plate 501 in a T shape, and the insertion transverse plate 504 and the lap transverse plate 503 are positioned on the same side of the vertical plate 501; the plug-in horizontal plate 504 forms a second clamping portion, and accordingly, the second clamping structure 4011 is a clamping groove disposed on a side surface of the first horizontal plate 401. More preferably, the end of the insertion transverse plate 504 is provided with a first clamping limiting portion 5041, and a second clamping limiting portion 4012 matched with the first clamping limiting portion 5041 for limiting is arranged in the clamping groove. More preferably, the first clamping limiting portion 5041 is a limiting protrusion disposed at an end of the insertion transverse plate 504, and the second clamping limiting portion 4012 is a limiting groove disposed in the clamping groove.

Preferably, the first clamping structure 102 is a protruding platform 1021 arranged in the length extension direction of the drop floor 1 and a protruding plug 1022 arranged on the protruding platform 1021; the protruding platform 1021 is divided into a first platform 1023 and a second platform 1024 by a male plug 1022, the first platform having a thickness c greater than the second platform thickness d. Thus, the first clamping structure 102 can be clamped with the falling-level vertical plate 4 with the lower side in a retraction structure in a matching manner, so that the exposed surface of the falling-level bottom plate 1 and the falling-level vertical plate 4 in the matching and clamping manner can be consistent with the exposed surface of the closing-in line, and the appearance is more attractive.

The embodiment of the invention also provides an installation method of the drop-level ceiling module of the air return opening at the air conditioner position, which comprises the following steps:

(1) installing a suspended ceiling base layer component: assembling square steel, a hanging piece, a T-shaped keel, a ceiling panel connecting piece, a hanging rod 8 and a ceiling panel 9 together, wherein one end of the hanging rod 8 is fixed on a ceiling;

(2) one end of the Z-shaped steel 6 is fixed to the ceiling base member: specifically, one end of the Z-shaped steel 6 is fixed to the lower end of the boom 8 by a screw;

(3) fixedly mounting the closing piece 2 and the louver 3 on the air return opening 101 of the drop floor 1: the four closing parts 2 are sequentially arranged on the rectangular edge of the air return opening 101 of the drop-level bottom plate 1 by means of the second clamping grooves 205; installing the shutter 3, namely obliquely inserting the whole shutter 3 into the upper part of the inner side of the air return opening 101, then obliquely inserting the shutter 3 into the first clamping groove 204 of the closing piece 2 from top to bottom, then inserting the other end of the shutter 3 into the first clamping groove 204 of the closing piece 2 at the other side, and adjusting the position of the shutter 3;

(4) clamping and assembling the drop-level bottom plate 1 and the drop-level vertical plate 4, namely, the drop-level bottom plate 1 is matched and clamped with a first clamping part 4021 on the lower bottom surface of a first vertical plate 402 of the drop-level vertical plate 4 through a first clamping structure 102 on one side of the drop-level bottom plate; the assembled falling-stage vertical plate 4 is fixed to the other end of the Z-shaped steel 6 through a falling-stage vertical plate mounting connecting piece 5, namely, the falling-stage vertical plate 4 is in matched clamping connection with a second clamping portion on the falling-stage vertical plate mounting connecting piece 5 through a second clamping structure 4011 arranged on the side surface of a first transverse plate 401 of the falling-stage vertical plate 4.

The installation method of the air conditioner position return air inlet drop-level ceiling module provided by the embodiment of the invention is simple and convenient in assembly process, and can realize quick assembly of the air conditioner position return air inlet drop-level ceiling module.

The present invention is not limited to the above-described specific embodiments, and various modifications and variations are possible. Any modifications, equivalents, improvements and the like made to the above embodiments in accordance with the technical spirit of the present invention should be included in the scope of the present invention.