CN215483989U

CN215483989U - Antidetonation furred ceiling

Info

Publication number: CN215483989U
Application number: CN202121163554.5U
Authority: CN
Inventors: 侯文�
Original assignee: Beijing Haifeng Construction Engineering Co ltd
Current assignee: Beijing Haifeng Construction Engineering Co ltd
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2022-01-11
Anticipated expiration: 2031-05-27

Abstract

The application relates to an anti-seismic suspended ceiling, which comprises a plurality of main keels which are transversely arranged below a roof and are distributed along the length direction of the roof, wherein a plurality of suspension rods are arranged between each main keel and the roof, one ends of the suspension rods are fixedly connected with the roof, damping assemblies are arranged at the ends of the suspension rods, which are far away from the roof, and the main keels are connected with the ends of the damping assemblies, which are far away from the suspension rods; the mounting frame is arranged below the main keel, mounting grooves which are arranged in a matrix manner are formed in the mounting frame, and a veneer is embedded in the mounting grooves; the shock absorption assembly comprises a spring, and the elastic force direction of the spring is opposite to the gravity direction of the mounting frame. This application has the advantage that improves the anti-seismic performance of furred ceiling.

Description

Antidetonation furred ceiling

Technical Field

The application relates to the field of architectural decoration and finishing, in particular to an anti-seismic ceiling.

Background

At present, a suspended ceiling is a decoration of an indoor roof, has the functions of heat preservation, heat insulation, sound absorption and sound insulation and the like, can be used as a hidden layer of an electric appliance circuit, a ventilating pipeline, a communication and fireproof pipeline, improves the indoor attractiveness, and is one of important parts of indoor decoration.

In the correlation technique, the furred ceiling includes many main joist that transversely set up in the roof below, and many main joists are arranged along the length direction on roof, is provided with many suspenders that are used for fixing main joist and roof between main joist and roof, has latticed mounting bracket at main joist below rigid coupling, inlays in the net of mounting bracket and is equipped with the decorative board.

With respect to the related art in the above, the inventors consider that: when carrying out indoor furred ceiling, not only need consider the aesthetic property of furred ceiling, the security is also a very important index of weighing furred ceiling quality, in the correlation technique, adopt rigid connection between jib and roof and the fossil fragments, also adopt rigid connection between fossil fragments and the mounting bracket, this vibrations that just leads to building itself transmit the furred ceiling very easily on, for example when wall or roof carry out construction or take place slight earthquake, lead to the furred ceiling structure to be destroyed very easily, the furred ceiling structure and install lamps and lanterns etc. on the furred ceiling take place to fall, there is certain potential safety hazard.

SUMMERY OF THE UTILITY MODEL

In order to improve the anti-seismic performance of furred ceiling, this application provides an antidetonation furred ceiling.

The application provides a antidetonation furred ceiling adopts following technical scheme:

an anti-seismic ceiling comprises a plurality of main keels which are transversely arranged below a roof and are arranged along the length direction of the roof, a plurality of suspension rods are arranged between each main keel and the roof, one ends of the suspension rods are fixedly connected with the roof, shock absorption assemblies are arranged at the ends of the suspension rods, which are far away from the roof, and the main keels are connected with the ends of the shock absorption assemblies, which are far away from the suspension rods; the mounting frame is arranged below the main keel, mounting grooves which are arranged in a matrix manner are formed in the mounting frame, and a veneer is embedded in the mounting grooves; the shock absorption assembly comprises a spring, and the elastic force direction of the spring is opposite to the gravity direction of the mounting frame.

By adopting the technical scheme, when the roof vibrates due to building construction on a wall body or the roof, kinetic energy is transmitted to the hanging rod, the spring elastically deforms so as to absorb the kinetic energy in the vertical direction, the vibration energy transmitted to the main keel is reduced, the mounting frame and the veneer embedded in the mounting frame are integrally in a stable state, and the possibility of damage of a suspended ceiling structure is reduced; through setting up damper, can improve the anti-seismic performance of furred ceiling to improve the security performance of furred ceiling.

Optionally, the damping assembly further comprises a housing arranged at one end of the suspension rod, which is away from the roof, a connecting rod is arranged in the housing in a penetrating manner, the connecting rod and the suspension rod are coaxially arranged and are in sliding fit with the housing, a sliding block is arranged at one end, which is located at the housing, of the connecting rod, the sliding block is in sliding fit with the housing, the spring is sleeved on the connecting rod, and two ends of the spring are respectively abutted against one end, which is away from the suspension rod, of the housing and the sliding block; the main keel is arranged at one end, deviating from the sliding block, of the connecting rod.

By adopting the technical scheme, when the roof vibrates due to building construction on a wall body or the roof, kinetic energy is transmitted to the shell through the suspension rod, the shell vibrates up and down along with the suspension rod, relative motion occurs between the sliding block and the shell, and the sliding block extrudes the spring to enable the spring to elastically deform in the sliding process, so that the vibration transmitted by the shell is absorbed, the frequency and amplitude of the overall vibration of the mounting frame and the veneer are reduced, and the overall stability of the mounting frame and the veneer is improved; the shell can limit and guide the sliding of the sliding block, so that the stability of the connecting rod is improved, and the integral stability of the mounting frame and the veneer is further improved; the connecting rod can restrict and guide the deformation of spring, improves the flexible stability of spring and smoothness degree.

Optionally, a fixing piece is arranged between the connecting rod and the main keel; the fixing piece is provided with a clamping groove, and the main keel is embedded in the clamping groove; the opening part that lies in the joint groove on the mounting is provided with the locating part that is used for carrying out the restriction to the main joist position.

By adopting the technical scheme, when the main keel is installed, the main keel is embedded in the clamping groove, and then the position of the main keel in the clamping groove is limited through the limiting part, so that the main keel is kept stable in the clamping groove; through setting up mounting and locating part, improve the convenience of main joist installation.

Optionally, the locating part includes the gag lever post, the gag lever post passes the relative both sides wall of joint groove and with main joist upper surface butt.

By adopting the technical scheme, when the main keel is installed, the main keel is firstly embedded into the clamping groove, then the limiting rod penetrates through two opposite side walls of the clamping groove and abuts against the upper surface of the main keel, and the position of the main keel is limited under the combined action of the clamping groove and the limiting rod, so that the main keel is kept stable in the clamping groove; through setting up the gag lever post, improve the stability of main joist installation.

Optionally, the two opposite side walls of the clamping groove are convexly provided with arc-shaped elastic pieces, and arc-shaped openings of the elastic pieces are arranged back to back.

By adopting the technical scheme, when the main keel is installed, the main keel is embedded into the clamping groove, the two elastic pieces which are oppositely arranged are elastically deformed so as to clamp and fix the main keel in the clamping groove, when the roof is vibrated due to building construction on a wall body or the roof, the vibration is transmitted to the main keel, the main keel is shaken in the clamping groove to extrude the elastic pieces, and the elastic pieces are elastically deformed, so that the vibration of the main keel is absorbed, the frequency and amplitude of the whole vibration of the mounting frame and the veneer are reduced, and the whole stability of the mounting frame and the veneer is improved; through setting up the flexure strip and mutually supporting with damper assembly, further improve the damping performance of furred ceiling.

Optionally, the fixing member includes a fixing plate horizontally disposed at an end of the connecting rod away from the slider, a first limiting plate disposed at an end of the fixing plate and having a plate surface perpendicular to a plate surface of the fixing plate, a bearing plate disposed at an end of the first limiting plate away from the fixing plate and having a plate surface perpendicular to the plate surface of the first limiting plate, and a second limiting plate disposed at an end of the bearing plate away from the first limiting plate and having a plate surface perpendicular to the plate surface of the bearing plate, and the clamping groove is composed of the first limiting plate, the bearing plate and the second limiting plate; the limiting rod penetrates through the first limiting plate and the second limiting plate to be abutted to the upper surface of the main keel.

By adopting the technical scheme, when the main keel is installed, the main keel is embedded into a clamping groove formed by the first limiting plate, the bearing plate and the second limiting plate, then the limiting rod penetrates through the first limiting plate and the second limiting plate, and the main keel is kept in a stable state in the clamping groove under the common limiting action of the first limiting plate, the second limiting plate, the bearing plate and the limiting rod; the convenience of installation of the main keel is improved.

Optionally, the second limiting plate is hinged to the supporting plate, and the elastic piece is arranged on the first limiting plate and the second limiting plate.

By adopting the technical scheme, when the main keel is installed, the second limiting plate is firstly rotated around the hinge point, so that the clamping groove is opened, then the main keel is placed between the first limiting plate and the bearing plate, then the second limiting plate is pushed to rotate around the hinge point, so that the clamping groove is closed, the main keel is held tightly by the elastic sheets on the first limiting plate and the second limiting plate, and then the limiting rod sequentially penetrates through the first limiting plate and the second limiting plate, so that the first limiting plate is kept stable; through the articulated cooperation of second limiting plate and layer board, improved the convenience of fixing main joist.

Optionally, the limiting member further includes a first limiting nut and a second limiting nut screwed to two ends of the limiting rod; the first limiting nut is abutted with the first limiting plate, and the second limiting nut is abutted with the second limiting plate.

Through adopting above-mentioned technical scheme, when fixing the main joist, promote the second limiting plate and rotate around the pin joint and make the joint groove closed, the flexure strip on first limiting plate and the second limiting plate holds the main joist tightly, then passes first limiting plate and second limiting plate with the gag lever post in proper order, then screws up first stop nut and second stop nut to improve the stability of second limiting plate.

Optionally, a fixing hole is formed in the fixing plate, threads are formed in the periphery of one side, away from the sliding block, of the connecting rod, the connecting rod penetrates through the fixing hole, and a first fixing nut and a second fixing nut which are used for clamping and fixing the fixing plate are screwed on the connecting rod and located on the upper side and the lower side of the fixing plate.

Through adopting above-mentioned technical scheme, when installing the mounting, at first with first fixation nut spiro union on the connecting rod, then pass the fixed orifices with the connecting rod, fixed plate upper surface and first fixation nut butt, screw up second fixation nut, first fixation nut and second fixation nut press from both sides the fixed plate tightly jointly, when highly there is certain deviation because processing or installation error lead to between the mounting, through twisting first fixation nut and second fixation nut, can highly adjust the mounting, thereby improve the convenience of follow-up main joist installation.

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

1. by arranging the damping component, the anti-seismic performance of the suspended ceiling can be improved, so that the safety performance of the suspended ceiling is improved;

2. the installation stability of the main keel is improved by arranging the limiting rod;

3. the stability of the second limiting plate is further improved by arranging the first limiting nut and the second limiting nut;

4. the elastic piece is matched with the damping component, so that the damping performance of the suspended ceiling is further improved;

5. through first fixation nut and second fixation nut, can adjust the height of mounting to improve the convenience of follow-up main joist installation.

Drawings

FIG. 1 is a schematic structural view of an earthquake resistant ceiling according to an embodiment of the present disclosure;

FIG. 2 is a schematic structural view of a shock absorbing assembly according to an embodiment of the present application;

FIG. 3 is a schematic view of the structure of the fastener in the embodiment of the present application;

figure 4 is a schematic view of the structure of the cross runners in cooperation with the support runners in an embodiment of the present application.

Description of reference numerals: 1. a main keel; 2. a boom; 20. mounting a plate; 3. a shock absorbing assembly; 30. a housing; 31. a connecting rod; 310. a first fixing nut; 311. a second fixing nut; 32. a slider; 33. a spring; 4. a mounting frame; 40. a false keel; 400. a card slot; 41. a support keel; 410. clamping a plate; 5. mounting grooves; 6. a veneer; 7. a fixing member; 70. a fixing plate; 71. a first limit plate; 710. a first limit hole; 72. a support plate; 73. a second limiting plate; 730. a clamping groove; 731. a second limiting hole; 8. a limiting member; 80. a limiting rod; 81. a first limit nut; 82. a second limit nut; 9. an elastic sheet.

Detailed Description

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

The embodiment of the application discloses antidetonation furred ceiling. Referring to fig. 1, the anti-seismic ceiling comprises a plurality of main keels 1 transversely arranged below a roof, the main keels 1 are arranged along the length direction of the roof, a plurality of suspension rods 2 are arranged between each main keel 1 and the roof, one ends of the suspension rods 2 are fixedly connected with the roof, shock absorption assemblies 3 are arranged at the ends, away from the roof, of the suspension rods 2, and the main keels 1 are connected with the ends, away from the suspension rods 2, of the shock absorption assemblies 3; be provided with mounting bracket 4 below main joist 1, be provided with the mounting groove 5 that is the matrix and arranges on mounting bracket 4, at the embedded decorative board 6 that is equipped with of mounting groove 5.

Referring to fig. 2, in order to reduce the weight of the main keel 1, the main keel 1 is made of a hollow aluminum alloy profile; in order to facilitate the fixation between the suspender 2 and the roof, one end of the suspender 2 is convexly provided with an installation plate 20 which is integrally cast and formed with the suspender 2, when the installation is carried out, the plate surface of the installation plate 20 is attached to the roof and is fixed with the roof through an expansion bolt; the damping assembly 3 comprises a shell 30 fixedly connected to one end of the suspension rod 2, which is far away from the roof, a connecting rod 31 penetrates through the shell 30, the connecting rod 31 and the suspension rod 2 are coaxially arranged and are in sliding fit with the shell 30, a sliding block 32 is fixedly connected to one end, which is located in the shell 30, of the connecting rod 31, the sliding block 32 is in sliding fit with the shell 30, a spring 33 is arranged in the shell 30, the spring 33 is sleeved on the connecting rod 31, two ends of the spring 33 are respectively abutted to one end, which is far away from the suspension rod 2, of the shell 30 and the sliding block 32, and the spring 33 is always in a compression state; the main keel 1 is arranged at one end of the connecting rod 31 departing from the sliding block 32.

In order to facilitate the installation and fixation between the main keel 1 and the connecting rod 31, referring to fig. 3, a fixing part 7 is arranged at one end of the connecting rod 31 departing from the sliding block 32; the fixing piece 7 comprises a fixing plate 70 which is fixedly connected to one end, away from the sliding block 32, of the connecting rod 31, the plate surface of the fixing plate 70 is perpendicular to the axis of the connecting rod 31, a first limiting plate 71, the plate surface of which is perpendicular to the plate surface of the fixing plate 70, is arranged at one end of the fixing plate 70, the first limiting plate 71 and the fixing plate 70 are integrally cast and formed, a bearing plate 72 is arranged at one end, away from the fixing plate 70, of the first limiting plate 71, the plate surface of the bearing plate 72 is perpendicular to the plate surface of the first limiting plate 71 and is integrally cast and formed with the first limiting plate 71, the extending direction of the bearing plate 72 is the same as the extending direction of the fixing plate 70, and the fixing plate 70, the first limiting plate 71 and the bearing plate 72 are arranged in a U shape; one end of the bearing plate 72 departing from the first limiting plate 71 is provided with a second limiting plate 73, the second limiting plate 73 is hinged to the bearing plate 72, when the second limiting plate 73 is turned over to the plate surface parallel to the plate surface of the first limiting plate 71 around the hinge point, a clamping groove 730 is formed among the first limiting plate 71, the bearing plate 72 and the second limiting plate 73, the main keel 1 is clamped in the clamping groove 730, and a limiting part 8 used for fixing the position of the second limiting plate 73 is arranged between the first limiting plate 71 and the second limiting plate 73.

Referring to fig. 3, a first limiting hole 710 is formed in the first limiting plate 71 above the main keel 1, a second limiting hole 731 is formed in the second limiting plate 73 at a position corresponding to the first limiting hole 710, and the limiting member 8 includes a limiting rod 80, a first limiting nut 81 and a second limiting nut 82; the limiting rod 80 sequentially passes through the first limiting hole 710 and the second limiting hole 731, and the limiting rod 80 is abutted against the main keel 1, so that the position of the main keel 1 is limited; the first limit nut 81 is screwed on one end of the limit rod 80 and tightly abuts against the first limit plate 71; the second limit nut 82 is screwed on one end of the limit rod 80 departing from the first limit nut 81 and tightly abuts against the second limit plate 73.

In order to further improve the shock absorption performance, referring to fig. 2 and fig. 3, the arc-shaped elastic pieces 9 are respectively convexly arranged on the opposite surfaces of the first limiting plate 71 and the second limiting plate 73, the arc-shaped openings of the two elastic pieces 9 are arranged back to back and are respectively fixedly connected with the first limiting plate 71 and the second limiting plate 73, and when the main keel 1 is embedded in the clamping groove 730, the two elastic pieces 9 are abutted to the main keel 1 to be tightly matched.

In order to facilitate the installation and fixation of the fixing member 7 on the connecting rod 31, a fixing hole is formed in the fixing plate 70, a thread is formed in the periphery of one side of the connecting rod 31, which is away from the slider 32, the connecting rod 31 penetrates through the fixing hole, a first fixing nut 310 is screwed on the lower side of the connecting rod 31, which is located on the fixing plate 70, a second fixing nut 311 is screwed on the upper side of the connecting rod 31, which is located on the fixing plate 70, and the first fixing nut 310 and the second fixing nut 311 clamp and fix the fixing plate 70 together.

Referring to fig. 1 and 4, the mounting bracket 4 includes a cross runner 40 and a support runner 41; the auxiliary keels 40 are provided with a plurality of pieces, the length direction of each auxiliary keel is perpendicular to the length direction of the main keel 1, the auxiliary keels 40 are fixedly connected with the main keels 1, the specific auxiliary keels 40 can be made of I-shaped aluminum profiles, and the upper surfaces of the auxiliary keels 40 are fixed between the main keels 1 through angle plates and screws; the supporting keels 41 are provided with a plurality of supporting keels, the length direction of each supporting keel 41 is perpendicular to the length direction of the corresponding auxiliary keel 40, two ends of each supporting keel 41 are respectively connected with the two adjacent auxiliary keels 40, specifically, clamping plates 410 are convexly arranged at two ends of each supporting keel 41, each auxiliary keel 40 is provided with a clamping groove 400, and each clamping plate 410 penetrates through the corresponding clamping groove 400 and is fixed with the corresponding supporting keel 41 at the adjacent position through a rivet; the mounting groove 5 is formed by a cross keel 40 and a support keel 41; the veneer 6 is overlapped in the installation groove 5 formed by the cross runner 40 and the support runner 41.

The implementation principle of an antidetonation furred ceiling of the embodiment of this application does: when the suspended ceiling is actually installed, the installation plate 20 is firstly attached to the roof surface and fixed through the expansion bolts, after the suspension rod 2 and the damping component 3 are installed, the first fixing nut 310 is screwed on the connecting rod 31, then the connecting rod 31 penetrates through the fixing hole, the upper surface of the fixing plate 70 is abutted to the first fixing nut 310, the second fixing nut 311 is screwed, the fixing plate 70 is clamped by the first fixing nut 310 and the second fixing nut 311 together, and when the height between the fixing pieces 7 has deviation due to installation errors or machining errors, the height of the fixing pieces 7 can be adjusted by screwing the first fixing nut 310 and the second fixing nut 311; then, installing the main keel 1, placing the main keel 1 between the first limit plate 71 and the bearing plate 72, then pushing the second limit plate 73 to rotate around a hinge point to close the clamping groove 730, tightly holding the main keel 1 by the elastic sheets 9 on the first limit plate 71 and the second limit plate 73, then sequentially enabling the limit rod 80 to pass through the first limit plate 71 and the second limit plate 73, tightly screwing the first limit nut 81 to abut against the first limit plate 71, tightly screwing the second limit nut 82 to abut against the second limit plate 73, so that the stability of the second limit plate 73 is improved, and keeping the main keel 1 stable under the combined action of the clamping groove 730 and the limit rod 80; then the auxiliary keel 40 is installed, the auxiliary keel 40 and the main keel 1 are fixed by using an angle plate and a screw, then the supporting keel 41 is installed, the clamping plate 410 at one end of the supporting keel 41 penetrates through the clamping groove 400 on the auxiliary keel 40, then the clamping plate 410 and the supporting keel 41 at the adjacent position are fixed by using a rivet, an installation groove 5 is enclosed between the supporting keel 41 and the auxiliary keel 40, and then the veneer 6 is pushed into the installation groove 5 from the diagonal line of the installation groove 5 and then embedded into the installation groove 5.

When the roof vibrates due to building construction on a wall or the roof, kinetic energy is transmitted to the shell 30 through the suspension rod 2, the shell 30 vibrates up and down along with the suspension rod 2, the sliding block 32 and the shell 30 move relatively, and the sliding block 32 extrudes the spring 33 in the sliding process to enable the spring 33 to deform elastically, so that the vibration transmitted by the shell 30 is absorbed, the frequency and amplitude of the integral vibration of the mounting frame 4 and the veneer 6 are reduced, and the integral stability of the mounting frame 4 and the veneer 6 is improved; the shell 30 can limit and guide the sliding of the sliding block 32, so that the stability of the connecting rod 31 is improved, and the overall stability of the mounting frame 4 and the veneer 6 is further improved; meanwhile, vibrations are transmitted to main joist 1, and main joist 1 takes place to rock extrusion flexure strip 9 in joint groove 730, and elastic deformation takes place for flexure strip 9 to absorb main joist 1's vibrations, flexure strip 9 mutually supports with damper assembly 3 and further reduces the frequency and the range of the whole vibrations of mounting bracket 4 and decorative board 6, thereby further improves the holistic stability of mounting bracket 4 and decorative board 6. To sum up, through setting up damper 3, can improve the anti-seismic performance of furred ceiling to improve the security performance of furred ceiling.

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

Claims

1. An antidetonation furred ceiling which characterized in that: the roof-mounted type building roof comprises a plurality of main keels (1) which are transversely arranged below a roof and are arranged along the length direction of the roof, a plurality of suspension rods (2) are arranged between each main keel (1) and the roof, one end of each suspension rod (2) is fixedly connected with the roof, a damping assembly (3) is arranged at one end of each suspension rod (2) departing from the roof, and the main keels (1) are connected with one ends of the damping assemblies (3) departing from the suspension rods (2); an installation frame (4) is arranged below the main keel (1), installation grooves (5) which are arranged in a matrix manner are formed in the installation frame (4), and a veneer (6) is embedded in the installation grooves (5); the shock absorption assembly (3) comprises a spring (33), and the elastic force direction of the spring (33) is opposite to the gravity direction of the mounting frame (4).

2. An earthquake-resistant suspended ceiling as defined in claim 1, wherein: the damping assembly (3) further comprises a shell (30) arranged at one end, deviating from a roof, of the suspension rod (2), a connecting rod (31) penetrates through the shell (30), the connecting rod (31) is coaxially arranged with the suspension rod (2) and is in sliding fit with the shell (30), a sliding block (32) is arranged at one end, located on the shell (30), of the connecting rod (31), the sliding block (32) is in sliding fit with the shell (30), the spring (33) is sleeved on the connecting rod (31), and two ends of the spring are respectively abutted to one end, deviating from the suspension rod (2), of the shell (30) and the sliding block (32); the main keel (1) is arranged at one end, deviating from the sliding block (32), of the connecting rod (31).

3. An earthquake-resistant suspended ceiling as defined in claim 2, wherein: a fixing piece (7) is arranged between the connecting rod (31) and the main keel (1); a clamping groove (730) is formed in the fixing piece (7), and the main keel (1) is embedded in the clamping groove (730); the opening that lies in joint groove (730) on mounting (7) is provided with locating part (8) that are used for carrying out the restriction to main joist (1) position.

4. An earthquake-resistant suspended ceiling as defined in claim 3, wherein: locating part (8) include gag lever post (80), gag lever post (80) pass joint groove (730) relative both sides wall and with main joist (1) upper surface butt.

5. An earthquake-resistant suspended ceiling as defined in claim 4, wherein: the opposite both sides wall protrusion in joint groove (730) is provided with curved flexure strip (9), the arc opening of flexure strip (9) sets up to the back of the body.

6. An earthquake-resistant suspended ceiling as defined in claim 5, wherein: the fixing piece (7) comprises a fixing plate (70) horizontally arranged at one end, away from the sliding block (32), of the connecting rod (31), a first limiting plate (71) arranged at one end of the fixing plate (70) and with a plate surface perpendicular to the plate surface of the fixing plate (70), a bearing plate (72) arranged at one end, away from the fixing plate (70), of the first limiting plate (71) and with a plate surface perpendicular to the plate surface of the first limiting plate (71), and a second limiting plate (73) arranged at one end, away from the first limiting plate (71), of the bearing plate (72) and with a plate surface perpendicular to the plate surface of the bearing plate (72), wherein the clamping groove (730) consists of the first limiting plate (71), the bearing plate (72) and the second limiting plate (73); the limiting rod (80) penetrates through the first limiting plate (71) and the second limiting plate (73) to be abutted against the upper surface of the main keel (1).

7. An earthquake-resistant suspended ceiling as defined in claim 6, wherein: the second limiting plate (73) is hinged to the bearing plate (72), and the elastic piece (9) is arranged on the first limiting plate (71) and the second limiting plate (73).

8. An earthquake-resistant suspended ceiling as defined in claim 7, wherein: the limiting piece (8) further comprises a first limiting nut (81) and a second limiting nut (82) which are in threaded connection with two ends of the limiting rod (80); the first limiting nut (81) is abutted with the first limiting plate (71), and the second limiting nut (82) is abutted with the second limiting plate (73).

9. An earthquake-resistant suspended ceiling as defined in claim 8, wherein: the fixing plate (70) is provided with a fixing hole, the periphery of one side, deviating from the sliding block (32), of the connecting rod (31) is provided with threads, the connecting rod (31) penetrates through the fixing hole, and a first fixing nut (310) and a second fixing nut (311) which are used for clamping and fixing the fixing plate (70) are screwed on the connecting rod (31) and located on the upper side and the lower side of the fixing plate (70).