CN215888877U

CN215888877U - Assembled furred ceiling keel structure

Info

Publication number: CN215888877U
Application number: CN202121844198.3U
Authority: CN
Inventors: 丁欣欣; 王文广; 周东珊; 王聪聪; 余广
Original assignee: Zhejiang Yasha Decoration Co Ltd
Current assignee: Zhejiang Yasha Decoration Co Ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2022-02-22
Anticipated expiration: 2031-08-09

Abstract

The utility model relates to the technical field of fabricated suspended ceilings, in particular to a fabricated suspended ceiling keel structure. The wall-mounted ceiling board comprises a main keel member arranged on a wall, a secondary keel member which is vertical to the main keel member and used for installing a ceiling board, and a hanging member used for connecting the main keel member and the secondary keel member, wherein the secondary keel member comprises an inner buckling keel connected with the hanging member and a card inserting keel connected with the ceiling board, the inner buckling keel comprises a triangular piece with a triangular section and an inner buckling piece provided with a clamping groove, the groove opening of the clamping groove is close to the ceiling board relative to the groove bottom, and the card inserting keel comprises a plug board capable of being inserted into the clamping groove; the hanging component comprises a lapping piece used for lapping the main keel component and a mounting piece provided with a triangular through hole for the triangular piece to pass through. Through the design of triangle piece and triangle through-hole in this application, not only can prevent effectively that keel structure from receiving external force to remove, can also improve whole keel structure's bearing capacity.

Description

Assembled furred ceiling keel structure

Technical Field

The utility model relates to the technical field of fabricated suspended ceilings, in particular to a fabricated suspended ceiling keel structure.

Background

The assembly type decoration is also called industrial decoration, and is a decoration process that parts and components produced in the industrial mode are subjected to dry construction by industrial workers according to a standardized procedure in a reliable assembly mode. Simply speaking, the method is a new assembly house form that the basic layer and the surface layer of the wall plate and the top plate are prefabricated in a factory, the components required by the top surface, the wall surface and the ground are manufactured, and then the components are transported to a field for assembly and embedding. Compared with traditional decoration, the assembly type decoration has great advantages in the aspects of environmental protection, decoration period and quick change, on one hand, the assembly type decoration has no tile work and oil work, the site construction garbage is effectively reduced by more than 90%, the assembly type decoration adopts a dry construction mode, wet operation is not adopted, the floor tiles and the wall tiles are paved by adopting a dry method, so that the construction efficiency is improved, the dust pollution on a construction site is reduced, the environmental protection performance is greatly improved, and according to statistics, the site construction garbage can be effectively reduced by more than 90% in a full-dry type installation mode. The dry construction can not damage the original wall of the building, and the stability and the safety of the building body are ensured. On the other hand, the construction period is short, the replacement and the installation are fast, the wall, the roof and the ground are replaced when the wall, the roof and the ground are replaced, the assembly type construction can realize 7 days of completion of foundation construction, and 3 days of completion of storage and soft installation. If the house space of the house owner is functionally changed or the house owner has stage aesthetic fatigue, the top surface, the wall surface and the whole space style can be quickly converted.

In the existing assembled suspended ceiling, two layers of mutually perpendicular keel structures are generally adopted to form a keel net frame so as to enhance the installation stability of the suspended ceiling, for example, an integrated suspended ceiling keel structure disclosed in the patent document with the publication number of CN203420400U comprises a groove-shaped keel and a triangular keel, wherein the groove-shaped keel is a long strip-shaped groove with a downward notch, and two side edges of the groove-shaped keel are bent towards the inside of the groove to form hook-shaped edges; the triangular keel is of a pipe groove structure with an inverted triangle-shaped longitudinal section, and strip-shaped clamping edges are symmetrically arranged on two sides of the top of the triangular keel; many cell type fossil fragments are parallel arrangement in proper order, and many triangular keel are connected through the connecting piece below the cell type fossil fragments, cell type fossil fragments and triangular keel mutually perpendicular. In the keel structure, the connecting piece is inserted in the groove-shaped keel through the clamping foot, and the inserted connecting direction is in the vertical direction as can be seen from the attached drawing. However, because in the follow-up installation furred ceiling, lift, push into the draw-in groove of triangular keel with the furred ceiling board, consequently can produce an upward force to triangular keel to produce an upward force to the connecting piece, and then lead to the problem that the connecting piece drops from the cell type fossil fragments easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems and provides an assembled ceiling keel structure which is stable in structure and not easy to fall off.

The technical scheme for solving the problems is that the utility model provides an assembled ceiling keel structure, which comprises a main keel member arranged on a wall body, a secondary keel member which is vertical to the main keel member and used for installing a ceiling board, and a hanging member used for connecting the main keel member and the secondary keel member, wherein the secondary keel member comprises an inner buckling keel connected with the hanging member and a card inserting keel connected with the ceiling board, the inner buckling keel comprises a triangular piece with a triangular cross section and an inner buckling piece provided with a clamping groove, the notch of the clamping groove is close to the ceiling board relative to the groove bottom, and the card inserting keel comprises an inserting plate capable of being inserted into the clamping groove; the hanging component comprises a lapping piece used for lapping the main keel component and a mounting piece provided with a triangular through hole for the triangular piece to pass through.

Preferably, the lap joint comprises a top plate lapped on the top of the main keel member and limiting plates respectively arranged at two ends of the top plate, at least one limiting plate is provided with a threaded hole, the threaded hole is in threaded connection with an adjusting bolt, and the end part of the adjusting bolt can be abutted against the main keel member; the limiting plate provided with the threaded hole is connected with the mounting piece.

Preferably, the triangular piece comprises a bottom surface and a vertex angle edge opposite to the bottom surface, the bottom surface is close to the wall body relative to the vertex angle edge, and the vertex angle edge is connected with the inner fastener.

Preferably, the hanging member further comprises a receiving member for receiving the internal fastener, the receiving member comprises two receiving plates, solid parts on two sides of a notch of the clamping groove of the internal fastener are respectively lapped on the two receiving plates, and an insertion opening communicated with the clamping groove is formed between the two receiving plates.

Preferably, the mounting member comprises a bottom panel and two waist panels, and the triangular through hole is formed between the bottom panel and the waist panels; the bottom surface board is parallel to the both sides reason of triangle spare is equipped with respectively and strengthens the pterygoid lamina, strengthen pterygoid lamina and bottom surface board all with the overlap joint is connected.

Preferably, the reinforcing wing plate is U-shaped, and includes a reinforcing portion and two wing portions respectively disposed at two ends of the reinforcing portion, and the wing portions are connected to the bottom panel.

Preferably, the clamping groove is internally provided with a stop plate, and the inserting plate is provided with a lapping block which can be lapped on the stop plate.

Preferably, the inner fastener comprises a fixing plate connected with the triangular piece and clamping plates arranged at two ends of the fixing plate, and the clamping grooves are formed between the fixing plate and the clamping plates; the clamping groove is at least internally provided with two stop plates which are respectively arranged on the two clamping plates, each stop plate comprises a connecting end connected with the clamping plate and a free end opposite to the connecting end, the free ends are close to the fixed plate relative to the connecting ends, and an adjusting socket is formed between the free ends of the two stop plates.

Preferably, the free ends of the stop plates are provided with abutting portions, and the abutting portions of the two stop plates abut against each other. .

Preferably, the receiving member further includes a tightening plate abutting against outer surfaces of the two locking plates.

The utility model has the beneficial effects that:

1. in this application, couple together false keel component and hanging component through triangle piece and triangle through-hole, because the triangle piece passes the triangle through-hole, consequently when lifting installation furred ceiling board on follow-up, interior knot fossil fragments can not drop from suspended structure because of receiving the overhead action of furred ceiling board. Simultaneously, still couple together hanging component and main joist component through the overlap joint piece, the overlap joint piece passes through adjusting bolt and main joist component butt, avoids the suspended structure to receive the last top force of below and remove, drop from the main joist structure through the effect of frictional force to keel structure's installation stability has been improved.

2. Simultaneously, triangle piece itself can regard as triangle keel member for whole keel structure includes the three-layer in proper order in this application: main keel layer, with main keel layer vertically triangle keel layer, with the interior fastener layer that triangle keel layer is parallel, compare in prior art, increased one deck fossil fragments, improved the bearing capacity of whole keel structure.

3. In this application, the grafting installation of furred ceiling board is realized to the connection between the picture peg through the card insertion fossil fragments and the draw-in groove of interior knot fossil fragments, has the characteristics of simple installation. The adjustable stop plate structure in the clamping groove can be matched with the plugboards of various specifications, and meanwhile, the outer cladding tightening effect of the bearing piece is matched, so that the problem that the plugboards fall off due to the fact that the stop plate is too large in adjustment degree can be solved, and the installation stability is guaranteed while the simple and convenient installation effect is achieved.

Drawings

FIG. 1 is a schematic view of an installation of a fabricated ceiling grid structure;

FIG. 2 is a schematic view of a suspending member in an assembled ceiling grid structure;

FIG. 3 is a schematic view of an interior clip keel in an assembled ceiling keel structure;

FIG. 4 is a schematic view of a bayonet keel in a fabricated ceiling keel structure;

FIG. 5 is a schematic view of the connection of the hanger member and cross runner member in an assembled ceiling runner structure;

in the figure: the auxiliary keel member 1, the inner buckling keel 11, the triangular part 111, the inner buckling part 112, the stop plate 1121, the fixing plate 1122, the snap plate 1123, the snap-in keel 12, the insert plate 121, the lap block 122, the lap piece 31, the limit plate 311, the mounting piece 32, the reinforcing wing plate 321, the receiving piece 33, the receiving plate 331, the tightening plate 332, the main keel member 2, the hanging member 3 and the ceiling board 4.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.

An assembled ceiling keel structure, as shown in fig. 1, comprises a main keel member 2 arranged on a wall body, a secondary keel member 1 perpendicular to the main keel member 2 and used for installing a ceiling board 4, and a hanging member 3 used for connecting the main keel member 2 and the secondary keel member 1.

The main keel member 2 can be a keel in any form and can be installed on a wall in any mode, in the embodiment, the main keel member 2 is a plurality of square pipes arranged side by side, the square pipes are connected with the wall through expansion bolts, and gaps are reserved between the top surfaces of the square pipes and the wall to enable follow-up hanging members 3 to be installed.

As shown in fig. 2, the hanging member 3 includes a bridging member 31 for bridging the main keel member 2, the bridging member 31 includes a top plate bridging the top of the main keel member 2 and limiting plates 311 respectively disposed at two ends of the top plate, and the top plate and the two limiting plates 311 form a U-shaped structure to be sleeved on the square pipe. In order to facilitate the overlapping of the overlapping member 31, the distance between the two limiting plates 311 of the overlapping member 31 should be slightly larger than the width of the square pipe, but this also causes the subsequent overlapping member 31 to be easily moved by external force or even to be easily detached from the square pipe. Therefore, in this embodiment, at least one of the limiting plates 311 is provided with a threaded hole, and the threaded hole is connected with an adjusting bolt, and the end of the adjusting bolt can be abutted against the main keel member 2. During the installation, with overlap joint 31 overlap joint to square pipe after, rotate adjusting bolt for adjusting bolt removes along its axial direction, supports tightly until adjusting bolt's tip and square pipe, can make overlap joint 31 cramp on square pipe through the effect of frictional force, avoids hanging component 3 and receives external force and remove, even the problem that drops.

The cross member 1 is then mounted to the hanger member 3.

Because the false keel member 1 needs to be connected with the hanging member 3 and the ceiling board 4 respectively, the ceiling board 4 is usually a large plate formed by splicing a plurality of panels, in order to facilitate the installation of the ceiling board 4, the present application adopts a splicing installation mode, that is, as shown in fig. 3, fig. 4 and fig. 5, the false keel member 1 comprises an inner buckling keel 11 connected with the hanging member 3 and a card inserting keel 12 connected with the ceiling board 4, the inner buckling keel 11 comprises an inner fastener 112 provided with a clamping groove, the inner fastener 112 comprises a fixing plate 1122 as a top and clamping plates 1123 arranged at two ends of the fixing plate 1122, a U-shaped clamping groove is formed between the fixing plate 1122 and the clamping plates 1123, a notch of the clamping groove is close to the ceiling board 4 relative to a groove bottom, and the card inserting keel 12 comprises an inserting plate 121 capable of inserting the clamping groove.

When the hanging member is installed, the inside-buckling keel 11 is first connected to the hanging member 3, in this embodiment, the inside-buckling keel 11 further includes a triangular piece 111 having a triangular cross section, and the triangular piece 111 is connected to the fixing plate 1122 of the inside buckle 112. Based on this, the hanging member 3 and the mounting member 32 having a triangular through hole for the triangle 111 to pass through, the mounting member 32 includes a bottom panel and two waist panels, and the triangular through hole is formed between the bottom panel and the waist panels. The mounting member 32 is provided with an opening communicating with the triangular through hole, the opening is used for allowing the connection part of the triangular piece 111 and the fixing plate 1122 to pass through, but the triangular piece 111 cannot be directly detached from the triangular through hole through the opening, so that the inner fastening keel 11 needs to be mounted on the main keel member 2 together with the hanging member 3 after the inner fastening keel 11 is mounted on the hanging member 3. With the structure, firstly, the connection strength between the inner buckle keel 11 and the hanging component 3 is improved, and secondly, the triangular piece 111 can be regarded as a keel layer, so that the load capacity of the whole keel structure is improved.

The triangular piece 111 comprises a bottom surface and a vertex angle side opposite to the bottom surface, the triangular piece 111 can be a regular triangle or an inverted triangle, and the two structural modes respectively have advantages and disadvantages. In the regular triangular triangle 111 structure, the bottom surface of the triangle 111 and the fixing plate 1122 need to be connected by a narrow connecting plate, and the connecting plate is easily broken. However, the mounting member 32 of the triangle 111 is also regular triangle, and the opening is opened on the bottom panel for the connection plate to pass through, and the solid part of the bottom panel has a receiving function for the triangle 111, so that the bottom panel is not easy to deform by gravity and the opening is enlarged to cause the triangle 111 to fall off. Under the structure of the inverted triangular piece 111, the bottom surface is close to the wall body relative to the vertex angle side, and the vertex angle side is directly connected with the inner fastener 112, so that the connection strength is good. However, in this case, the triangular through-hole of the mounting member 32 fitted to the triangular member 111 is also formed in an inverted triangle, and the bottom plate thereof faces upward and is connected to the strap 31, and the opening thereof is opened at the joint between the two lumbar plates. If the cross member 1 and ceiling tile 4 are too heavily weighted, the resulting weight may cause the two lumbar plates of the mount 32 to expand outwardly, causing the opening between the two lumbar plates to enlarge, and thus causing a problem in that the triangle 111 falls.

In this embodiment, it is preferable to adopt the structure of the triangle 111 with an inverted triangle, in order to solve the existing defects, the hanging member 3 further includes a receiving member 33 for receiving the internal buckle 112, the receiving member 33 includes two receiving plates 331, the solid portions on both sides of the slot opening of the internal buckle 112 are respectively lapped on the two receiving plates 331, an insertion opening communicating with the slot is provided between the two receiving plates 331, and a receiving force is added to the false keel member 1 by adding the receiving plates 331 so as to disperse the force applied to the waist plate of the mounting member 32.

In addition, in the inverted triangular shape 111, since the bottom panel of the mounting member 32 can be connected only to the stopper plate 311 of the bridge 31, it is preferable to connect the stopper plate 311 provided with a screw hole to the mounting member 32. However, the limiting plate 311 and the bridge 31 are not in the same plane, and in order to improve the connection strength between the two, the bottom panel is provided with a reinforcing wing panel 321 parallel to the two side edges of the triangle 111, and the reinforcing wing panel 321 and the bottom panel are both connected with the bridge 31. Preferably, the strong wing plate 321 is U-shaped, and includes a reinforcing portion and two wing portions respectively disposed at two ends of the reinforcing portion, and the wing portions are connected to the bottom plate.

After the inside-buckling keel 11 is mounted to the hanging member 3, the card insertion keel 12 is also required to be connected to the ceiling tile 4. Because the inserting plate 121 in the card inserting keel 12 is vertically inserted into the inserting groove and is perpendicular to the ceiling board 4, the card inserting keel 12 is necessarily in a bent shape and comprises a connecting plate connected with the back of the ceiling board 4 and the inserting plate 121, the connecting plate and the ceiling board 4 are connected through screws or glue, the connecting direction of the connecting plate is vertical and is consistent with the gravity direction of the ceiling board 4, and therefore the problem that the ceiling board 4 is easy to fall off exists. Therefore, in the present embodiment, the structure of the ceiling board 4 is replaced, and the ceiling board 4 includes a bent portion perpendicular to the main body portion in addition to the main body portion. The card insertion keel 12 includes a first connection portion connected to the back surface of the main body portion, and an L-shaped second connection portion connected to both the back surface and the end surface of the bent portion, and connects the card insertion board 121 to the second connection portion. The connecting direction of the second connecting part and the back of the bending part is vertical to the gravity direction of the ceiling board 4, and the connecting strength is high.

Meanwhile, in this embodiment, the first connection portion and the second connection portion of the card insertion keel 12 each include a concave portion abutting against the ceiling board 4 and a convex portion protruding from the plane where the ceiling board 4 is located, and the concave portion and the convex portion are connected by an extension portion, so that when the card insertion keel 12 and the ceiling board 4 are connected, the concave portion and the ceiling board 4 can be connected by screws, and the convex portion and the ceiling board 4 are connected by adhesive and gluing. Therefore, the connection between the card inserting keel 12 and the ceiling board 4 is realized through a double connection means of screws and gluing, the two connection means can be mutually complementary, and the connection strength is effectively improved.

The bending portion may be disposed at the center or periphery of the main body portion, and when the bending portion is disposed at the center of the main body portion, the card insertion keel 12 may be a structure shaped like a Chinese character 'ji', and the insertion plate 121 is disposed at the center of the top of the structure. Because it is more convenient to bend at the lateral margin of furred ceiling board 4 to form the above-mentioned portion of bending, and directly bend original furred ceiling board 4 and can guarantee the integrated into one piece of body portion and the portion of bending, therefore this embodiment is preferably with the portion of bending setting at the lateral margin of body portion, card insert fossil fragments 12 are shown in fig. 4 at this moment, be half of "nearly" word structure, the card insert fossil fragments 12 of two adjacent furred ceiling boards 4 splice into a "nearly" word structure jointly, during the installation, also insert in same inside buckle fossil fragments 11 the card insert fossil fragments 12 of two adjacent furred ceiling boards 4.

Generally, after the card insertion keel 12 is connected with the ceiling board 4, the card insertion keel 12 and the ceiling board 4 are lifted together, the insertion board 121 is vertically inserted into the slot of the inner fastener 112, and after the insertion board 121 is inserted into the slot, the two card boards 1123 clamp the insertion board 121.

Of course, the connection strength of the two clamping plates 1123 to clamp the inserting plate 121 is not enough, so that a stop plate 1121 is arranged in the clamping groove, and the inserting plate 121 is provided with a lapping block 122 capable of lapping on the stop plate 1121. The structure that the lateral margin of the ceiling board 4 is provided with the bending portion is matched, at least two stop plates 1121 are arranged in the clamping groove, the two stop plates 1121 are respectively arranged on the two clamping plates 1123, and the overlapping blocks 122 of the two adjacent card insertion keels 12 are respectively overlapped on the two stop plates 1121.

In order to ensure that the inserting plate 121 and the overlapping block 122 are smoothly inserted into the slot and then overlapped with the stopping plate 1121, the stopping plate 1121 includes a connecting end connected to the clamping plate 1123 and a free end opposite to the connecting end, the free end is close to the fixing plate 1122 relative to the connecting end, and an adjusting socket is formed between the free ends of the two stopping plates 1121. The initial adjustment socket should be as small as possible, preferably abutting the free ends of the stop plates 1121 against each other. When the inserting plate 121 and the overlapping block 122 are pushed upward in use, the stop plate 1121 can be pushed to slightly rotate upward around the connecting end thereof, so that the adjusting insertion opening is enlarged for the overlapping block 122 to insert. After the overlapping block 122 is completely inserted, the inserting plate 121 is pulled down, so that the overlapping block 122 is overlapped on the stop plate 1121, and meanwhile, the stop plate 1121 is driven to slightly rotate downwards around the connecting end of the stop plate 1121, so that the adjusting socket is reduced, the overlapping block 122 is clamped in the clamping groove, and the connection stability between the inner buckle keel 11 and the card inserting keel 12 is ensured. Further, the present embodiment also designs the stopper plate 1121 in a bent shape including a body portion and an abutting portion; when the card insertion keel 12 is not inserted, the abutting portions of the two stop plates 1121 abut against each other, and after the card insertion keel 12 is inserted, the abutting portions of the stop plates 1121 abut against the insertion plate 121, so that compared with the straight stop plates 1121, the friction area between the stop plates 1121 and the insertion plate 121 is increased, and the connection strength is improved.

In addition, although the stopper plate 1121 tends to rotate downward even under the influence of the gravity of the card insertion keel 12 and the ceiling plate 4 to cause the adjustment socket to be reduced and not to cause the insertion plate 121 to fall off from the card slot, if the card board 1123 is influenced by the gravity of the card insertion keel 12 and the ceiling plate 4, the rotation thereof outward of the card slot causes the adjustment socket to be enlarged and affects the connection between the inside-locking keel 11 and the card insertion keel 12, and therefore, firstly, the fixing plate 1122 and the card board 1123 are designed to have an obtuse angle with respect to the acute angle, so that the card board is not easily rotated outward; the bearing member 33 further includes a tightening plate 332 respectively abutting against the outer surfaces of the two clamping plates 1123, so as to prevent the clamping plates 1123 from expanding outward.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. An assembled ceiling keel structure, including a main keel member (2) provided to a wall body, a cross member (1) perpendicular to the main keel member (2) for installing a ceiling board (4), and a hanging member (3) for connecting the main keel member (2) and the cross member (1), characterized in that: the auxiliary keel member (1) comprises an inner buckling keel (11) connected with the hanging member (3) and a card inserting keel (12) connected with the ceiling board (4), the inner buckling keel (11) comprises a triangular piece (111) with a triangular section and an inner buckling piece (112) provided with a clamping groove, the notch of the clamping groove is close to the ceiling board (4) relative to the groove bottom, and the card inserting keel (12) comprises a plug board (121) capable of being inserted into the clamping groove; the hanging component (3) comprises a connecting piece (31) used for connecting the main keel component (2) in a connecting mode and a mounting piece (32) provided with a triangular through hole through which the triangular piece (111) can pass.

2. A fabricated ceiling grid structure according to claim 1, wherein: the lap joint piece (31) comprises a top plate lapped on the top of the main keel member (2) and limiting plates (311) respectively arranged at two ends of the top plate, at least one limiting plate (311) is provided with a threaded hole, the threaded hole is in threaded connection with an adjusting bolt, and the end part of the adjusting bolt can be abutted against the main keel member (2); and the limiting plate (311) provided with the threaded hole is connected with the mounting piece (32).

3. A fabricated ceiling grid structure according to claim 1, wherein: the triangle (111) comprises a bottom surface and a vertex angle edge opposite to the bottom surface, the bottom surface is close to the wall body relative to the vertex angle edge, and the vertex angle edge is connected with the inner fastener (112).

4. A fabricated ceiling grid structure according to claim 3, wherein: the hanging component (3) further comprises a bearing piece (33) used for bearing the inner fastener (112), the bearing piece (33) comprises two bearing plates (331), solid parts on two sides of a clamping groove notch of the inner fastener (112) are respectively lapped on the two bearing plates (331), and an insertion opening communicated with the clamping groove is formed between the two bearing plates (331).

5. A fabricated ceiling grid structure according to claim 3, wherein: the mounting piece (32) comprises a bottom panel and two waist panels, and the triangular through hole is formed between the bottom panel and the waist panels; the bottom panel is parallel to the both sides reason of triangle is equipped with respectively and strengthens pterygoid lamina (321), strengthen pterygoid lamina (321) and bottom panel all with overlap joint (31) are connected.

6. A fabricated ceiling grid structure according to claim 5, wherein: the reinforcing wing plate (321) is U-shaped and comprises a reinforcing part and two wing parts which are arranged at two ends of the reinforcing part respectively, and the wing parts are connected with the bottom panel.

7. A fabricated ceiling grid structure according to claim 4, wherein: a stop plate (1121) is arranged in the clamping groove, and the inserting plate (121) is provided with a lapping block (122) which can be lapped on the stop plate (1121).

8. A fabricated ceiling grid structure according to claim 7, wherein: the inner fastener (112) comprises a fixing plate (1122) connected with the triangular piece (111) and clamping plates (1123) arranged at two ends of the fixing plate (1122), and the clamping grooves are formed between the fixing plate (1122) and the clamping plates (1123); the clamping groove is at least internally provided with two stop plates (1121), the two stop plates (1121) are respectively arranged on the two clamping plates (1123), each stop plate (1121) comprises a connecting end connected with the clamping plate (1123) and a free end opposite to the connecting end, the free ends are close to the fixing plate (1122) relative to the connecting ends, and an adjusting socket is formed between the free ends of the two stop plates (1121).

9. A fabricated ceiling grid structure according to claim 8, wherein: the free ends of the stop plates (1121) are provided with abutting parts, and the abutting parts of the two stop plates (1121) abut against each other.

10. A fabricated ceiling grid structure according to claim 8, wherein: the bearing piece (33) further comprises clamping plates (332) which are respectively abutted with the outer surfaces of the two clamping plates (1123).