CN219508962U - Assembled furred ceiling butt joint device - Google Patents

Abstract

The utility model provides an assembly type suspended ceiling butt joint device, and belongs to the technical field of suspended ceiling plate installation. The assembly type suspended ceiling butt joint device comprises a butt joint piece, a connecting piece, two adjacent suspended ceiling boards and an adjusting and fixing piece. According to the utility model, the two plugging parts are plugged into the corresponding second plugging grooves on the connecting piece respectively, the top of the adjusting piece fixing piece is fixedly connected to the wall top, the position of the adjusting piece, which is a preset distance away from the wall top, is connected to the connecting piece according to the position of the connecting piece, when the height of the suspended ceiling plate is changed, the height of the position of the connecting piece is changed, so that different positions on the adjusting piece fixing piece can be connected to the connecting piece, the assembly type installation is realized, the adjusting piece fixing piece lifts the flat connecting piece through the connecting piece, the stability of the flat connecting piece is improved, the different height requirements of the suspended ceiling plate are met, and the installation is convenient.

Description

Assembled furred ceiling butt joint device

Technical Field

The utility model relates to the technical field of ceiling plate installation, in particular to an assembled ceiling butt joint device.

Background

In the existing ceiling flush joint device, two adjacent ceiling boards are respectively connected to a connecting piece, but the top of the ceiling board is not stopped, garbage easily enters the connecting part of the connecting piece and the ceiling board, damage is caused to the ceiling board, meanwhile, each connecting piece and a wall face are not fixedly connected, shaking easily occurs when the connecting piece is impacted by external force, so that the stability of the ceiling board is poor, and the height of the connecting piece cannot be adjusted to meet different height requirements of the ceiling board.

Chinese patent CN113668761B and publication day 2022-08-09 disclose a method for installing a multifunctional detachable assembled suspended ceiling by butt joint, which belongs to the technical field of the method for installing an assembled suspended ceiling, and in a specific embodiment, the same Z-type connector is adopted to realize butt joint and edge receiving, one end of an edge suspended ceiling plate is connected with a first connector in advance, wallboards on two sides are installed, and one side of the Z-type connector with a first clamping groove facing horizontally to an opening is horizontally buckled on the top of the wallboards; a sixth clamping plate of the Z-shaped connecting piece arranged at the edge of the wallboard is provided with one end of the edge suspended ceiling plate connected with the first connecting piece; the first clamping groove of the middle Z-shaped connecting piece is used for clamping the edge ceiling plate and the middle ceiling plate; the sixth clamping plate of the Z-shaped connecting piece in the middle is used for erecting a ceiling plate, and the novel multifunctional Z-shaped connecting piece is simple in structure, convenient and quick to operate, detachable and multipurpose in one die. In the above patent, the top of the suspended ceiling plate is not stopped, and then garbage easily enters the joint of the connecting piece and the suspended ceiling plate, and meanwhile, each connecting piece and the wall surface are not fixedly connected, and the connecting piece easily shakes when being impacted by external force, so that the stability of the suspended ceiling plate is poor, and the height of the connecting piece cannot be adjusted to meet the different height requirements of the suspended ceiling plate.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides an assembled suspended ceiling butt joint device.

The utility model provides an assembled suspended ceiling butt joint device which comprises a butt joint piece, a connecting piece, two adjacent suspended ceiling plates and an adjusting and fixing piece, wherein the height of the connecting part between the connecting piece and the connecting piece can be adjusted, the butt joint piece comprises two first inserting grooves which are symmetrically arranged, the connecting piece comprises two second inserting grooves which are symmetrically arranged, and the butt joint piece comprises two inserting parts which are symmetrically arranged; the side ends of the two suspended ceiling boards are respectively inserted into the two first inserting grooves; each plug-in part is respectively plugged in a corresponding second plug-in groove on the connecting piece; the top of the adjusting fixing piece is fixedly connected to the wall top, and the position, away from the wall top, of the adjusting fixing piece, which is at a preset distance is connected to the connecting piece.

Further, the butt piece includes the basal portion, is used for supporting the first backup pad of furred ceiling board, is used for carrying out spacing first limiting plate to the furred ceiling board top, first backup pad, first limiting plate connect in the basal portion respectively, first backup pad is two of symmetry setting, first limiting plate is two of symmetry setting, first inserting groove is enclosed by first limiting plate, basal portion, first backup pad.

Further, the butt joint piece further comprises a first anti-collision reinforcing plate for increasing the strength of the first limiting plate, and the first anti-collision reinforcing plate is connected to one end, far away from the base, of the first limiting plate.

Further, the base comprises two second limiting plates which are symmetrically arranged, a first connecting plate, a second connecting plate and a third connecting plate, wherein two ends of the first connecting plate are respectively connected to one side face of the two second limiting plates, the side faces are close to each other, the second connecting plate is connected to the bottom of the plug-in portion, two ends of the third connecting plate are respectively connected to the second connecting plate and the first connecting plate, the first limiting plates are connected to the top of the other side face of the second limiting plates, and the first supporting plates are connected to the bottom of the other side face of the second limiting plates.

Further, the base part further comprises a connection reinforcing plate, wherein two ends of the connection reinforcing plate are respectively connected to one side surface, close to each other, of the two second limiting plates, and the connection reinforcing plate is used for increasing the connection strength of the two second limiting plates.

Further, the grafting portion includes the grafting board of grafting in second grafting groove, the fourth connecting plate that both ends are connected in grafting board and second connecting plate respectively, is used for increasing the second anticollision reinforcing plate of fourth connecting plate intensity, the second anticollision reinforcing plate is connected in the one end that the fourth connecting plate is close to the second connecting plate.

Further, the connecting piece further comprises a second supporting plate, a third supporting plate for supporting the plug-in connection part, and a third limiting plate with two ends respectively connected with the second supporting plate and the third supporting plate, wherein the second plug-in connection groove is formed by encircling the second supporting plate, the third limiting plate and the third supporting plate.

Further, the middle part of the second supporting plate is provided with a fixing hole, the adjusting fixing piece comprises a hanging rod, a supporting nut and a threaded part arranged on the hanging rod, the top fixing hole of the hanging rod is fixedly connected to the wall top, the supporting nut is in threaded connection with the part, located below the second supporting plate, of the threaded part, and the top of the supporting nut is in butt joint with the bottom of the second supporting plate.

Further, the adjusting and fixing piece further comprises a limit nut which is in threaded connection with the portion, located above the second supporting plate, of the threaded portion, and the bottom of the limit nut is abutted to the top of the second supporting plate.

Further, the connecting piece further comprises a third anti-collision reinforcing plate connected to the strength of the second supporting plate, and the third anti-collision reinforcing plate is connected to one end, far away from the third limiting plate, of the second supporting plate.

The assembly type suspended ceiling butt joint device has the following beneficial effects:

the side ends of two adjacent furred ceilings are pegged graft respectively in two first grafting grooves on the butt piece, then the butt piece can receive limit to furred ceiling top and bottom, protect the furred ceiling, prevent rubbish from getting into the junction of furred ceiling and butt piece, two grafting portions peg graft respectively in the second grafting groove that corresponds on the connecting piece, regulating part mounting top fixed connection is in the roof, will adjust the connecting piece and go up to predetermine apart from the roof and be located in the connecting piece according to the position that the connecting piece is located, when the change of the height of locating of furred ceiling, then the change of the height of the position that the connecting piece is located, and then can be with adjusting the different positions on the connecting piece and be connected in the connecting piece, the assembly type installation, it hangs the butt piece through the connecting piece to adjust the connecting piece, the stability of butt piece has been improved, the different high demands of furred ceiling are satisfied, it is convenient to install.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model. In the drawings, like reference numerals are used to identify like elements. The drawings, which are included in the description, illustrate some, but not all embodiments of the utility model. Other figures can be derived from these figures by one of ordinary skill in the art without undue effort.

FIG. 1 is a schematic view of an assembled ceiling butt joint device according to an embodiment of the present utility model;

FIG. 2 is a schematic view of a portion of an assembled ceiling butt joint device according to an embodiment of the present utility model;

fig. 3 is a schematic structural view of a butt joint member in an assembled ceiling butt joint device according to an embodiment of the present utility model.

In the figure: 1-ceiling tile, 2-flush joint piece, 21-first backup pad, 22-first limiting plate, 221-first crashproof reinforcing plate, 23-second limiting plate, 24-first connecting plate, 25-second connecting plate, 26-third connecting plate, 27-connection reinforcing plate, 28-plugboard, 29-fourth connecting plate, 291-second crashproof reinforcing plate, 3-connecting piece, 31-second backup pad, 32-third backup pad, 33-third limiting plate, 34-third crashproof reinforcing plate, 4-adjustment fixture, 41-suspender, 42 support nut, 43-limit nut.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be arbitrarily combined with each other.

Please refer to fig. 1 to 3. The utility model provides an assembled suspended ceiling butt joint device, which comprises a butt joint piece 2, a connecting piece 3, two adjacent suspended ceiling boards 1 and an adjusting and fixing piece 4 capable of adjusting the height of a joint with the connecting piece 3, wherein the butt joint piece 2 comprises two first splicing grooves which are symmetrically arranged, the connecting piece 3 comprises two second splicing grooves which are symmetrically arranged, and the butt joint piece 2 comprises two splicing parts which are symmetrically arranged; the side ends of the two suspended ceiling boards 1 are respectively inserted into the two first inserting grooves; each plug-in part is respectively plugged in a corresponding second plug-in groove on the connecting piece 3; the top of the adjusting fixing piece 4 is fixedly connected to the wall top, and the position, away from the wall top, of the adjusting fixing piece 4, which is at a preset distance is connected to the connecting piece 3.

The side ends of the suspended ceiling 1 do not need to be grooved, the design and the production procedure of the suspended ceiling 1 are simple, the side ends of the suspended ceiling 1 are spliced in the first splicing grooves, the suspended ceiling 1 is convenient to install, the top and the bottom of the joint of the side ends of the suspended ceiling 1 and the flat connector 2 are arranged in the first splicing grooves, the side walls of the first splicing grooves of the flat connector 2 can be used for edging the top and the bottom of the suspended ceiling 1, namely, garbage can be prevented from entering the joint of the suspended ceiling 1 and the flat connector 2, attractive effect can be achieved, the splicing parts on the flat connector 2 are spliced in the second splicing grooves, fastening connection of the flat connector 2 and the connecting piece 3 is achieved, installation is convenient, the connecting piece 3 is positioned at a second installation position which is a second installation distance away from the wall top due to the fact that the lengths of the flat connector 2 and the connecting piece 3 are determined, the adjusting piece 4 can be arranged at a preset first installation position which is a first distance away from the wall top according to the second installation position of the connecting piece 3, the connecting piece 4 can be adjusted at a fourth installation position which is different from the first installation position which is a first installation distance away from the wall top of the wall top, and the connecting piece 3 can be adjusted at a fourth installation position which is different from the first installation position which is a distance away from the ceiling top 3.

Specifically, adjusting the mounting 4 can include that the top is connected in the bracing piece on the wall top, set up the portion of holding up on the bracing piece, when the connecting piece is connected in the bracing piece or is close to the bracing piece setting, hold up the portion and hold up the connecting piece bottom, hold up I portion can include the clamp that is fixed in on the bracing piece and connect in the supporting disk of clamp, the supporting disk is connected in the connecting piece bottom, also can set up a plurality of solid fixed rings on the bracing piece, set up the snap ring that is used for the joint in solid fixed ring on the connecting piece.

The butt piece 2 may include a base, a first supporting plate 21 for supporting the ceiling board 1, and a first limiting plate 22 for limiting the top of the ceiling board 1, where the first supporting plate 21 and the first limiting plate 22 are respectively connected to the base, the first supporting plate 21 is two symmetrically arranged, the first limiting plate 22 is two symmetrically arranged, and the first inserting slot is surrounded by the first limiting plate 22, the base and the first supporting plate 21.

Specifically, the first support plate 21 supports the ceiling tile 1, when the ceiling tile 1 moves upward, the first limiting plate 22 limits the movement of the ceiling tile 1 to one side, and the base can limit the movement of the ceiling tile 1 to one side, for example, the base can limit the movement of the ceiling tile 1 located on the left side of the base in the right direction, limit the movement of the ceiling tile 1 located on the right side of the base in the left direction, and simultaneously the first support plate 21 receives the bottom of the ceiling tile 1, and the first limiting plate 22 receives the top of the ceiling tile 1 to protect the ceiling tile 1. The first support plate 21 and the first limiting plate 22 may be both horizontally arranged, i.e. the first support plate 21 is parallel to the first limiting plate 22.

The butt joint 2 may further include a first bump reinforcement panel 221 for increasing the strength of the first stopper panel 22, the first bump reinforcement panel 221 being connected to an end of the first stopper panel 22 remote from the base.

Specifically, the first anti-collision reinforcing plate 221 may increase the strength of the first limiting plate 22, and may simultaneously buffer and protect the first limiting plate 22 when an external force impacts the first limiting plate 22. The first bumper reinforcement 221 is perpendicular to the first support plate 21 when the first support plate 21 is parallel to the first stopper plate 22.

The base may include two second limiting plates 23 symmetrically arranged, a first connecting plate 24 with two ends respectively connected to one side surface of the two second limiting plates 23 close to each other, a second connecting plate 25 connected to the bottom of the plugging portion, and a third connecting plate 26 with two ends respectively connected to the second connecting plate 25 and the first connecting plate 24, where the first limiting plate 22 is connected to the top of the other side surface of the second limiting plate 23, and the first supporting plate 21 is connected to the bottom of the other side surface of the second limiting plate 23.

Specifically, the second limiting plate 23 may be vertically disposed, the first connecting plate 24 is perpendicular to one side surface connected to the second limiting plate 23, the other side surface of the second limiting plate 23 is respectively perpendicular to the first supporting plate 21 and the first limiting plate 22, the first connecting plate 24 and the first limiting plate 22 may be in the same plane, the second connecting plate 25 is parallel to the first connecting plate 24, and the third connecting plate 26 is respectively perpendicular to the second connecting plate 25 and the first connecting plate 24.

The base may further include a connection reinforcing plate 27 having both ends connected to one side of the two second limiting plates 23 adjacent to each other, respectively, for increasing the connection strength of the two second limiting plates 23.

Specifically, when the single first connecting plate 24 is connected to the two second limiting plates 23, the two second connecting plates 25 are not firmly connected, and the connection strength of the two second limiting plates 23 is increased by the connection reinforcing plate 27. The connection reinforcing plate 27 is vertically connected to the first limiting plate 22, and the connection reinforcing plate 27 is disposed upward.

The plugging portion may include a plug board 28 plugged in the second plugging slot, a fourth connection board 29 having two ends connected to the plug board 28 and the second connection board 25, respectively, and a second anti-collision reinforcing board 291 for increasing the strength of the fourth connection board 29, wherein the second anti-collision reinforcing board 291 is connected to one end of the fourth connection board 29 close to the second connection board 25.

Specifically, the second anti-collision reinforcing plate 291 may increase the strength of the second connection plate 25, and the second anti-collision reinforcing plate 291 may perform a buffer protection on the second connection plate 25 when an external force impacts the second connection plate 25. The second anticollision reinforcing plate 291 sets up downwards, and first anticollision reinforcing plate 221 sets up upwards, and second anticollision reinforcing plate 291, first anticollision reinforcing plate 221 are two sets of, then third connecting plate 26 set up in two sets of second anticollision reinforcing plate 291, first anticollision reinforcing plate 221 inboard, then make second anticollision reinforcing plate 291 and first anticollision reinforcing plate 221 can the combined action protect for third connecting plate 26. The pinboard 28 is horizontally arranged, the fourth connecting plate 29 is vertically arranged, the third connecting plate 26 is respectively perpendicular to the pinboard 28 and the second connecting plate 25, the second anti-collision reinforcing plate 291 is perpendicular to the second connecting plate 25, and the axis of the second anti-collision reinforcing plate 291 and the axis of the first anti-collision reinforcing plate can be overlapped.

The connecting piece 3 may further include a second support plate 31, a third support plate 32 for supporting the plugging portion, and a third limiting plate 33 with two ends respectively connected to the second support plate 31 and the third support plate 32, where the second plugging slot is surrounded by the second support plate 31, the third limiting plate 33, and the third support plate 32.

Specifically, the second support plate 31 may be horizontally disposed, the third support plate 32 may be parallel to the second support plate 31, and the third limiting plate 33 may be perpendicular to the second support plate 31 and the third support plate 32, respectively.

The middle part of the second supporting plate 31 may be provided with a fixing hole, the adjusting fixing member 4 includes a hanging rod 41, a supporting nut 42, and a threaded part arranged on the hanging rod 41, the top fixing hole of the hanging rod 41 is fixedly connected to the wall top, the supporting nut 42 is screwed to the part of the threaded part below the second supporting plate 31, and the top of the supporting nut 42 is abutted to the bottom of the second supporting plate 31.

Specifically, the hanger rod 41 is vertically disposed, an expansion bolt can be fixed in the wall top, a thread groove is disposed in the expansion bolt, the top of the thread portion is screwed in the thread groove, and the support nut 42 is screwed in the thread portion, so as to support the second support plate 31

The adjusting fixing piece 4 may further include a limit nut 43, where the limit nut 43 is screwed to a portion of the threaded portion above the second support plate 31, and the bottom of the limit nut 43 abuts against the top of the second support plate 31.

Specifically, the limiting nut 43 is screwed to the threaded portion, so as to limit the upward movement of the second support plate 31.

The connecting member 3 further includes a third crash reinforcing plate 34 connected to the second support plate 31 to increase the strength of the second support plate 31, and the third crash reinforcing plate 34 is connected to an end of the second support plate 31 remote from the third limiting plate 33.

Specifically, the second anti-collision reinforcing plate 291 may include a first anti-collision plate, a second anti-collision plate connected to one end of the second support plate 31 far away from the third limiting plate 33, and anti-collision connection plates having both ends respectively connected to the first anti-collision plate and the second anti-collision plate, the second anti-collision plate may be parallel to the first anti-collision plate, the anti-collision connection plates may be respectively perpendicular to the first anti-collision plate and the second anti-collision plate, the second anti-collision plate may be perpendicular to the second support plate 31, and the third anti-collision reinforcing plate 34 is in an i-shaped structure.

The installation method of the assembly type suspended ceiling butt joint device comprises the following steps:

s1: connecting a first inserting groove of the flat connector 2 to the side end of a ceiling plate 1;

s2, performing S2; connecting the second inserting groove of the connecting piece 3 to the inserting part of the flat connecting piece 2;

s3: the top of the adjusting fixing piece 4 is fixedly connected to the wall top, and the position, which is away from the wall top by a preset distance, of the adjusting fixing piece 4 is connected to the connecting piece 3 according to the height of the connecting piece 3;

s4: the other suspended ceiling plate 1 is inserted into the other first insertion groove of the butt joint 2.

Specifically, when the flat connection is installed, one side end of one ceiling plate 1 is installed, one first inserting groove of the flat connection piece 2 moves from the left side or the right side towards the direction close to the ceiling plate 1, so that one first inserting groove of the flat connection piece 2 is connected to the other side end of one ceiling plate 1, then the connecting piece 3 moves from the front side or the rear side towards the direction close to the inserting part of the flat connection piece 2, so that the second inserting groove of the connecting piece 3 is connected to the inserting part of the flat connection piece 2, the top of the adjusting fixing piece 4 is fixedly connected to the wall top, the position, away from the wall top, of the preset distance on the adjusting fixing piece 4 is connected to the connecting piece 3 according to the height of the connecting piece 3, the other first inserting groove of the flat connection piece 2 is finally inserted into the other first inserting groove of the flat connection piece 1, the adjusting fixing piece 4 lifts the flat connection piece 2 through the connecting piece 3, the stability of the flat connection piece 2 is improved, the requirement of different heights of the flat connection piece 2 is met, and the flat connection piece 1 is convenient to install.

The above description may be implemented alone or in various combinations and these modifications are within the scope of the present utility model.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting. Although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. An assembled furred ceiling butt joint device, its characterized in that: the connecting piece comprises a flat connecting piece (2), a connecting piece (3), two adjacent ceiling boards (1) and an adjusting fixing piece (4) capable of adjusting the height of the joint of the connecting piece (3), wherein the flat connecting piece (2) comprises two first inserting grooves which are symmetrically arranged, the connecting piece (3) comprises two second inserting grooves which are symmetrically arranged, and the flat connecting piece (2) comprises two inserting parts which are symmetrically arranged; the side ends of the two suspended ceiling boards (1) are respectively inserted into the two first inserting grooves; each plug-in part is respectively plugged in a corresponding second plug-in groove on the connecting piece (3); the top of the adjusting fixing piece (4) is fixedly connected to the wall top, and the position, away from the wall top, of the adjusting fixing piece (4) at a preset distance is connected to the connecting piece (3).

2. The assembled ceiling flush joint apparatus of claim 1, wherein: the butt piece (2) comprises a base part, a first supporting plate (21) used for supporting the ceiling plate (1) and a first limiting plate (22) used for limiting the top of the ceiling plate (1), wherein the first supporting plate (21) and the first limiting plate (22) are respectively connected to the base part, the first supporting plate (21) is two symmetrically arranged, the first limiting plate (22) is two symmetrically arranged, and the first inserting groove is formed by the first limiting plate (22), the base part and the first supporting plate (21) in a surrounding mode.

3. The assembled ceiling flush joint apparatus of claim 2, wherein: the butt joint piece (2) further comprises a first anti-collision reinforcing plate (221) used for increasing the strength of the first limiting plate (22), and the first anti-collision reinforcing plate (221) is connected to one end, far away from the base, of the first limiting plate (22).

4. A fabricated ceiling flush joint apparatus according to claim 2 or claim 3, wherein: the base comprises two second limiting plates (23) which are symmetrically arranged, a first connecting plate (24) with two ends connected to one side face of the two second limiting plates (23) which are close to each other, a second connecting plate (25) connected to the bottom of the plug-in connection part, and a third connecting plate (26) with two ends connected to the second connecting plate (25) and the first connecting plate (24) respectively, wherein the first limiting plates (22) are connected to the top of the other side face of the second limiting plates (23), and the first supporting plates (21) are connected to the bottom of the other side face of the second limiting plates (23).

5. The assembled ceiling flush joint apparatus of claim 4, wherein: the base part also comprises a connection reinforcing plate (27) with two ends respectively connected to one side surface of the two second limiting plates (23) which are close to each other and used for increasing the connection strength of the two second limiting plates (23).

6. The assembled ceiling flush joint apparatus of claim 4, wherein: the plug-in part comprises a plug-in plate (28) inserted in the second plug-in groove, a fourth connecting plate (29) with two ends respectively connected with the plug-in plate (28) and the second connecting plate (25), and a second anti-collision reinforcing plate (291) for increasing the strength of the fourth connecting plate (29), wherein the second anti-collision reinforcing plate (291) is connected with one end, close to the second connecting plate (25), of the fourth connecting plate (29).

7. A fabricated ceiling flush joint apparatus according to claim 1 or claim 2, wherein: the connecting piece (3) further comprises a second supporting plate (31), a third supporting plate (32) for supporting the plug-in part and a third limiting plate (33) with two ends respectively connected to the second supporting plate (31) and the third supporting plate (32), and the second plug-in groove is formed by enclosing the second supporting plate (31), the third limiting plate (33) and the third supporting plate (32).

8. The assembled ceiling flush joint apparatus of claim 7, wherein: the middle part of second backup pad (31) is equipped with the fixed orifices, adjust mounting (4) including jib (41), support nut (42), set up the screw thread portion on jib (41), jib (41) top fixed orifices and fixed connection are in the wall top, support nut (42) spiro union is located the part of second backup pad (31) below on screw thread portion, support nut (42) top butt is in second backup pad (31) bottom.

9. The assembled ceiling flush joint apparatus of claim 8, wherein: the adjusting and fixing piece (4) further comprises a limit nut (43), the limit nut (43) is in threaded connection with a part, located above the second supporting plate (31), of the threaded part, and the bottom of the limit nut (43) is in butt joint with the top of the second supporting plate (31).

10. The assembled ceiling flush joint apparatus of claim 7, wherein: the connecting piece (3) further comprises a third anti-collision reinforcing plate (34) which is connected to the strength of the second supporting plate (31), and the third anti-collision reinforcing plate (34) is connected to one end, far away from the third limiting plate (33), of the second supporting plate (31).