CN120797887A - Suspended ceiling device for public building interior decoration engineering - Google Patents
Suspended ceiling device for public building interior decoration engineeringInfo
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- CN120797887A CN120797887A CN202510969662.8A CN202510969662A CN120797887A CN 120797887 A CN120797887 A CN 120797887A CN 202510969662 A CN202510969662 A CN 202510969662A CN 120797887 A CN120797887 A CN 120797887A
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- plate
- transverse
- interior decoration
- suspended ceiling
- ceiling device
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Abstract
本发明涉及建筑技术领域，尤其是一种公共建筑室内装饰工程用吊顶装置，包括次龙骨下部两侧对称设有向外延伸的倒角结构，所述倒角结构之间形成缓冲开口；所述倒角结构在受到所述板材向上施加的压力时产生形变并收拢，所述缓冲开口缩小，使所述板材侧面能够沿所述倒角结构外侧滑入所述倒角结构上方，待所述缓冲开口压力释放后恢复原状，从而实现所述板材与所述次龙骨之间的快速卡合固定。本发明通过次龙骨下部设置的缓冲开口以及倒角结构，使得板材可借助举升设备直接扣合于次龙骨上，无需人工手动对位或使用螺栓紧固；同时，夹具的下开口腔在板材安装后受到边沿挤压而被封堵，增强了次龙骨与连接件之间的连接稳定性。
The present invention relates to the field of architectural technology, and in particular to a ceiling device for interior decoration projects of public buildings, comprising chamfered structures extending outwards symmetrically provided on both sides of the lower portion of a secondary keel, with a buffer opening formed between the chamfered structures; the chamfered structures deform and contract when subjected to the upward pressure exerted by the plate, and the buffer opening shrinks, allowing the side surface of the plate to slide along the outer side of the chamfered structure into the top of the chamfered structure, and return to its original shape after the pressure of the buffer opening is released, thereby achieving rapid engagement and fixation between the plate and the secondary keel. The present invention provides a buffer opening and a chamfered structure at the lower portion of the secondary keel, so that the plate can be directly fastened to the secondary keel with the aid of a lifting device, without the need for manual alignment or bolt tightening; at the same time, the lower opening of the clamp is blocked by edge compression after the plate is installed, thereby enhancing the connection stability between the secondary keel and the connector.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a suspended ceiling device for public building interior decoration engineering.
Background
In existing construction ceiling structures, the installation is typically performed using a system of main runners, cross runners and facing boards. The construction method comprises the steps of fixing a main keel on a building top structure, arranging a secondary keel below the main keel to form a supporting framework, and finally fixing plates (such as energy-saving building materials such as foam concrete heat-insulating plates) on the lower surface of the secondary keel in a fastening or bolting mode to finish suspended ceiling installation. The installation mode is widely applied to the field of public buildings, in particular to places with high requirements on building energy saving performance, such as hospitals, schools, office buildings and the like. Among them, heat-insulating boards such as foam concrete are widely used because of their light weight, high strength and excellent heat-insulating properties.
However, the prior art has a number of inconveniences in the actual construction process. Because the indoor space of the public building is larger, the single heat-insulating and energy-saving plate is generally larger in area, the traditional installation method needs to be lifted below the secondary joist by cooperation of multiple persons, and the heat-insulating and energy-saving plate is fixed through a buckle or a bolt after the position is manually adjusted, so that the operation is complex and the labor intensity is high. Even if lifting equipment is adopted to assist in lifting the plate to the installation height, additional operations such as alignment, clamping or fastening and the like still need to be manually performed, so that the efficiency is low, and certain potential safety hazards exist. Therefore, there is a need for an improved suspended ceiling device for interior decoration engineering of public buildings, so that the plates can be directly buckled on the secondary joists through the lifting device without manual alignment and fastening operation, thereby realizing quick, safe and efficient installation and improving the overall construction efficiency and engineering quality.
Disclosure of Invention
The invention aims to solve the technical problems that the single heat-insulating and energy-saving plate is large in area generally due to large indoor space of a public building, and the traditional installation method needs to be lifted to the lower part of the secondary joist by cooperation of multiple people, and is fixed through a buckle or a bolt after the position is manually adjusted, so that the operation is complicated and the labor intensity is high. Even if lifting equipment is adopted to assist in lifting the plate to the installation height, additional operations such as alignment, clamping or fastening and the like still need to be manually performed, so that the efficiency is low, and certain potential safety hazards exist.
The technical problem is solved by the following technical scheme that the invention provides a ceiling device for public building interior decoration engineering, which comprises the following components:
The main keel is fixedly arranged below the building ceiling through the main suspender;
The secondary keel is detachably arranged below the main keel through a connecting piece;
the plate is clamped between two adjacent secondary keels;
the two sides of the lower part of the secondary keel are symmetrically provided with outward extending chamfer structures, and a buffer opening is formed between the two chamfer structures;
the chamfering structure is deformed and folded when receiving the upward pressure applied by the plate, the buffering opening is reduced, the side face of the plate can slide into the upper portion of the chamfering structure along the outer side of the chamfering structure, and the plate is restored to the original state after the pressure of the buffering opening is released, so that the plate and the secondary keel are fast clamped and fixed.
In a preferred embodiment of the suspended ceiling device for public building interior decoration engineering, the cross section of the secondary joist is of a bilateral symmetry structure and comprises a first side part and a second side part, wherein the first side part and the second side part are respectively connected to two sides of a first transverse plate at the top;
The first side part and the second side part comprise a first vertical plate, a second horizontal plate and a second vertical plate which are sequentially arranged along the vertical direction, and the first horizontal plate, the first vertical plate, the second horizontal plate and the second vertical plate jointly form an upper half structure of the secondary keel;
the first vertical plate is vertically connected to the lower surface of the first transverse plate, the second transverse plate horizontally extends inwards and is vertically connected with the first vertical plate, and the second vertical plate is connected to the lower end of the second transverse plate and vertically extends downwards.
In a preferred embodiment of the suspended ceiling device for public building interior decoration engineering, a first inclined plane which is inclined outwards is arranged at the lower end of the second vertical plate, the lower end of the first inclined plane is connected with a transverse plane, a second inclined plane which is inclined inwards is arranged on the lower surface of the transverse plane, and a third inclined plane which is inclined upwards is connected at the lower end of the second inclined plane;
the first inclined plane and the third inclined plane are connected to the outer side and the inner side of the lower surface of the second vertical plate;
the first inclined plane, the transverse plane, the second inclined plane and the third inclined plane jointly form the chamfering structure for the end part of the clamping plate.
In a preferred embodiment of the suspended ceiling device for public building interior decoration engineering, an expansion piece for filling or enhancing the structural performance of the suspended ceiling device is arranged in the secondary joist, and the expansion piece is inserted into the secondary joist upwards from an opening at the lower end of the secondary joist;
and a through hole is formed in the upper portion of the secondary keel, and the expansion piece is positioned and installed through the through hole.
In a preferred embodiment of the ceiling device for public building interior decoration engineering of the present invention, the expansion piece comprises three parts connected up, down:
The upper part is of an oblong structure and is inserted into the through hole in an adapting way, wherein the width of the oblong structure is smaller than the distance of the transverse narrowest part inside the secondary joist, and the length of the oblong structure is larger than the distance, so that the transverse limiting is realized;
the middle part is a cylindrical connecting section;
the lower part is a round table-shaped structure, and the outer wall of the round table-shaped structure is attached to a third inclined plane in the chamfer structure and is used for forming a matched support with the chamfer structure at the lower part of the secondary joist.
In a preferred embodiment of the suspended ceiling device for public building interior decoration engineering, a plurality of expansion pieces are arranged on one secondary keel;
The connectors are at least in one-to-one correspondence with the expansion pieces, and the number of the expansion pieces can be more than that of the connectors.
In a preferred embodiment of the suspended ceiling device for public building interior decoration engineering, the connecting piece comprises a screw rod which is screwed below the main keel;
The lower part of the screw rod is provided with a clamp which is divided into an upper opening cavity and a lower opening cavity, wherein a nut of the screw rod is clamped in the upper opening cavity, and the lower opening cavity is clamped at the upper half part of the secondary keel.
In a preferred embodiment of the ceiling device for public building interior decoration engineering, the lower opening cavity is provided with an inwardly extending hook, the hook is hooked below the second transverse plate of the secondary joist, the lower surface of the oblong structure of the expansion member is lower than the lower surface of the second transverse plate, and the hook is hooked on the lower surface of the oblong structure.
In a preferred embodiment of the ceiling apparatus for public building interior decoration engineering of the present invention, the lower surface of the plate edge is placed on the transverse face of the chamfer structure;
the side of panel border supports the lower opening chamber outer wall of anchor clamps.
In an optimized implementation mode of the suspended ceiling device for the public building interior decoration engineering, the plate is a foam concrete heat-insulating plate or other light energy-saving building materials, and can be directly buckled in a chamfer structure of the secondary joist through lifting equipment.
The invention has the advantages that through the buffer opening and the chamfer structure arranged at the lower part of the secondary keel, the plate can be directly buckled on the secondary keel by virtue of lifting equipment, manual alignment or bolt fastening is not needed, the installation efficiency is obviously improved, meanwhile, the lower opening cavity of the clamp is blocked by edge extrusion after the plate is installed, the connection stability between the secondary keel and the connecting piece is enhanced, the falling risk caused by vibration or external force is avoided, the arrangement of the expansion piece further improves the integral bearing performance of the secondary keel, the oblong structure is matched with the through hole to realize limit, the circular truncated cone-shaped structure is tightly attached to the secondary keel buffer opening, the problem of structure loosening caused by opening shrinkage is effectively prevented under the combined action of the gravity of the plate and the tensile force of the expansion piece, and in addition, the main keel, the secondary keel, the connecting piece and the expansion piece which are in modular design are convenient to detach and replace, and the later maintenance and local adjustment are facilitated. The device has reasonable structure and simple and convenient operation, is suitable for the interior decoration engineering of large-space public buildings such as hospitals, schools, markets, office buildings and the like, and is particularly suitable for the construction scene of adopting light energy-saving plates such as foam concrete and the like for quick, efficient and safe installation.
Drawings
In order to more clearly illustrate the technical solution of the embodiments of the present invention, the following description will briefly explain the drawings of the embodiments of the present invention. It will be apparent that the figures in the following description relate only to some embodiments of the invention and are not limiting of the invention. Wherein:
FIG. 1 is a schematic view of the overall appearance of the present invention;
FIG. 2 is a schematic view of a portion of the structure of the present invention;
FIG. 3 is a schematic cross-sectional view of the present invention;
FIG. 4 is an enlarged schematic view of the structure shown in FIG. 3A;
FIG. 5 is a schematic diagram of a portion of the structure shown in FIG. 4;
Fig. 6 is a schematic diagram of a portion of the second structure shown in fig. 4.
In the figure:
1. Main joist, 11, main boom, 2, secondary joist, 21, first side, 22, second side, 23, first cross plate, 24, chamfer structure, 241, first inclined plane, 242, cross plane, 243, second inclined plane, 244, third inclined plane, 25, upper half structure, 251, first riser, 252, second cross plate, 253, second riser, 254, through hole, 26, buffer opening, 3, plate, 4, connector, 41, screw, 42, clamp, 43, upper opening cavity, 44, lower opening cavity, 45, hook, 5, expander, 51, oblong structure, 52, cylindrical connecting section, 53, circular truncated cone structure.
Detailed Description
In order that those skilled in the art will better understand the present invention, the present invention will be described in further detail with reference to the detailed description and the accompanying drawings.
The terms used in the present invention are those general terms that are currently widely used in the art in view of the functions of the present invention, but may vary according to the intention, precedent, or new technology in the art of the person of ordinary skill in the art. Furthermore, specific terms may be selected by the applicant, and in this case, detailed meanings thereof will be described in the detailed description of the present invention. Accordingly, the terms used in the specification should not be construed as simple names, but are based on meanings of the terms and general description of the present invention.
Referring to fig. 1 to 6, the present embodiment provides a ceiling apparatus for public building interior decoration engineering, which includes a main runner 1, a subsidiary runner 2 and a plate 3. The main joist 1 is fixedly arranged below a building ceiling through a main suspender 11 to form a top supporting framework of the whole suspended ceiling system. The main joists 1 are detachably provided with the secondary joists 2 through connecting pieces 4, and the multiple secondary joists 2 are arranged in parallel to form a foundation frame for mounting the plate 3. The plate 3 is clamped between two adjacent secondary keels 2 to finish the laying of the suspended ceiling surface layer.
Further, the two sides of the lower part of the secondary keel 2 are symmetrically provided with outwardly extending chamfer structures 24, and a buffer opening 26 with certain elasticity is formed between the two chamfer structures 24. The chamfer structure 24 is preferably made of a metal or plastic material having a certain elasticity so that it can be elastically deformed when being subjected to an external pressure.
When the plate 3 is installed, the plate 3 is placed on lifting equipment, the plate is adjusted to be above the area to be installed, the lifting equipment is started, and the plate 3 is slowly lifted to be below the secondary joist 2. At this point, the edges of the sheet 3 contact the lower end of the chamfer 24, exerting inward pressure on the chamfer 24 during the continuous ascent, gradually collapsing the buffer opening 26, allowing the edges of the sheet 3 to slide along the outside of the chamfer 24 and over the structure. After the plate 3 continues to rise and separate from the chamfering structure 24, the chamfering structure 24 is restored to the original state due to the elasticity of the plate 3, and the lower surface of the edge of the plate 3 immediately falls on the bearing surface of the chamfering structure 24, so that stable clamping is realized.
The structural design enables the plate 3 to be directly buckled on the secondary joist 2 through lifting equipment without manual alignment or bolt fastening, and the construction efficiency is remarkably improved. Meanwhile, the stability and safety of connection are enhanced by matching the chamfer structure 24 with the edges of the plate 3, and the light energy-saving plate 3 is suitable for large-area installation requirements of light energy-saving plates such as foam concrete.
Referring to fig. 2 to 6, in the suspended ceiling device of the present invention, the secondary joist 2 is made of metal or plastic material with certain elasticity and bearing capacity, and has a laterally symmetrical cross section, including a first lateral portion 21 and a second lateral portion 22, which are respectively and fixedly connected to two sides of a first transverse plate 23 at the top, so as to form a complete skeleton structure. Wherein the first side portion 21 and the second side portion 22 each comprise an upper half structure 25 and a lower half chamfer structure 24, and a buffer opening 26 is formed between the lower halves of the first side portion 21 and the second side portion 22.
Each side part is formed by sequentially connecting a plurality of structural members, a first vertical plate 251 is vertically arranged on the lower surface of a first transverse plate 23 and is used as a main supporting component of the upper structure of the secondary joist 2, a second transverse plate 252 horizontally extends inwards from the middle part of the first vertical plate 251 and is vertically connected with the middle part of the first transverse plate 251 to play a role of transverse limiting and supporting, and a second vertical plate 253 is vertically and downwards connected with the lower end of the second transverse plate 252 and continuously extends to the bottom area of the secondary joist 2 to form a structural foundation of the lower half part of the secondary joist 2. The first transverse plate 23, the first vertical plate 251, the second transverse plate 252 and the second vertical plate 253 form the upper half structure 25 of the secondary joist 2 together, and a stable supporting platform is provided for the subsequent clamping of the connecting piece 4 and the installation of the expanding piece 5. The upper half structures 25 of the first side portion 21 and the second side portion 22 combine to form an inverted "male" shape, but lack the cross of the upper end of the male shape, forming an opening. By the arrangement, the upper half structure 25 can be conveniently clamped and hooped by the lower opening cavity 44 of the clamp 42 under the conditions that the upper end is large and the lower end is small, and the installation firmness of the secondary joist 2 is also ensured.
Further, a first inclined surface 241 inclined outwards is provided at the lower end of the second vertical plate 253, a section of horizontal extending transverse surface 242 is connected to the lower end of the first inclined surface 241, a second inclined surface 243 inclined inwards is provided on the lower surface of the transverse surface 242, a section of third inclined surface 244 inclined upwards is connected to the lower end of the second inclined surface 242, the first inclined surface 241 and the third inclined surface 244 are respectively located at the outer side and the inner side of the lower end of the second vertical plate 253, and the first inclined surface 241 and the third inclined surface 244 together enclose a chamfering structure 24 with elastic deformation capability. Wherein first ramp 241 is used to guide sheet 3 down onto cross-face 242 or sheet 3 falls thereon to compress it such that cushioning opening 26 is retracted inwardly to further compress inner extension 5. The transverse face 242 is used for placing the edges of the plate 3 and is used for carrying out mounting and bearing on the plate 3. The second inclined surface 243 is used for pressing the plate 3 to guide the plate 3 to move up above the chamfering structure 24 while compressing the buffer opening 26 when the plate 3 is mounted from bottom to top. The two third inclined surfaces 244 of the first side portion 21 and the second side portion 22 form an eight shape, so that the round table of the expansion member 5 can conveniently squeeze the expansion member to expand the buffer opening 26, and lock the whole cross runner 2.
The chamfer 24 with the above structure can deform and retract inwards when the plate 3 is pressed upwards, so that the edge of the plate 3 can smoothly slide through the area, and after the pressure is released, the chamfer 24 is restored to the original shape, and the lower surface of the edge of the plate 3 is limited on the transverse surface 242, so that quick and stable clamping connection is realized. The structural design does not need to additionally use bolts or buckles, the installation efficiency of the plate 3 is obviously improved, and the lightweight energy-saving plate 3 is particularly suitable for large-area application of lightweight energy-saving plates 3 such as foam concrete.
In the suspended ceiling device of the present invention, in order to further enhance the carrying capacity and structural stability of the cross runners 2, an expansion member 5 for filling or enhancing the structural performance thereof is provided inside the cross runners 2. The expansion member 5 is preferably made of engineering plastic or metal with certain rigidity and elasticity so as to meet the stress requirement in the long-term use process.
The expansion piece 5 is inserted upwards from the buffer opening 26 at the bottom of the secondary joist 2 and enters the secondary joist 2 along the vertical direction, a through hole 254 is arranged at the upper part of the secondary joist 2, and the upper structure of the expansion piece 5 is inserted into the through hole 254 in an adaptive manner, so that the transverse limit and the axial fixation are realized, and the accurate positioning and the installation of the expansion piece 5 are completed.
In a preferred embodiment, a plurality of expansion elements 5 may be disposed on one cross runner 2, and each expansion element 5 is spaced apart along the length of the cross runner 2. The expansion pieces 5 and the connecting pieces 4 can keep one-to-one correspondence, and additional expansion pieces 5 can be additionally arranged at positions without the connecting pieces 4 according to actual needs so as to enhance local bearing capacity or improve integral rigidity of the structure.
After the panel 3 passes through the chamfer structure 24 of lifting means joint in secondary joist 2, the gravity of panel 3 can pass through secondary joist 2 and transmit downwards, and extension 5 receives ascending pulling force because its upper portion is spacing by through hole 254, the lower part inserts in buffer opening 26, and both form the effort in opposite directions for the lower part structure of extension 5 closely laminates the buffer opening 26 region of secondary joist 2, effectively prevents panel 3 risk that drops because of buffer opening 26 shrink leads to. In addition, the expansion member 5 can also function to close the buffer opening 26 to a certain extent, so that the cable or the like arranged in the buffer opening 26 is prevented from falling off, and the cable is fixed.
The expansion piece 5 comprises three parts which are connected up, down, wherein the upper part is an oblong structure 51 which is inserted in a through hole 254 in an adapting way, the width of the oblong structure 51 is smaller than the distance of the transverse narrowest part in the secondary joist 2, the length of the oblong structure is larger than the distance, so as to realize transverse limiting, the middle part is a cylindrical connecting section 52, the lower part is a circular truncated cone-shaped structure 53, the outer wall of the circular truncated cone-shaped structure 53 is attached to a third inclined surface 244 in the chamfer structure 24, and the circular truncated cone-shaped structure is used for forming a matched support with the chamfer structure 24 at the lower part of the secondary joist 2.
In the suspended ceiling device, the expansion piece 5 is preferably made of integrally formed engineering plastics or metal materials, and is of an upper, middle and lower three-section structure, and specifically comprises an oblong structure 51 at the upper part, and the expansion piece is adapted to be inserted into a through hole 254 at the top of the secondary joist 2 to realize transverse limit. The oblong structure 51 has a width smaller than the distance of the inner transverse narrowest part of the secondary joist 2 and a length larger than the distance, so that the secondary joist can be transversely clamped after being inserted to prevent falling, a cylindrical connecting section 52 is arranged in the middle and used for connecting an upper structure and a lower structure and ensuring uniform overall stress, a truncated cone-shaped structure 53 is arranged in the lower part, the shape of the outer wall of the truncated cone-shaped structure is matched with that of a third inclined surface 244 in the chamfer structure 24 at the lower end of the secondary joist 2, and the truncated cone-shaped structure can be tightly attached after being inserted in place to form a stable supporting contact surface.
During installation, the expansion member 5 is inserted upwardly from the cushioning opening 26 in the bottom of the cross runner 2 and vertically into the interior of the cross runner 2. When the upper oblong structure 51 reaches the position of the through hole 254, the oblong structure is rotated by 90 degrees to be transversely clamped into the through hole 254, and limit installation is completed. Further, the lower opening cavity 44 of the clamp 42 in the connecting member 4 is provided with a hook 45 extending inwards, and the hook 45 is hooked below the second transverse plate 252 of the cross runner 2 and can be hooked on the lower surface of the oblong structure 51 of the expansion member 5. Since the cylindrical connecting section 52 of the expansion member 5 is shorter than the length of the second riser 253 of the cross runner 2, the lower surface of the oblong structure 51 thereof is lower than the lower surface of the second cross plate 252, thereby ensuring that the hanger 45 can be stably hooked at this location. After the board 3 is installed, the weight of the board 3 will apply a pulling force downwards through the cross runners 2, and the expansion member 5 is limited by the through holes 254 and pulled by the hooks 45, so as to generate an upward pulling force. The two parts form opposite acting forces, so that the truncated cone-shaped structure 53 of the expansion piece 5 is more closely attached to the buffer opening 26 area of the secondary joist 2, and the risk of loosening or falling of the plate 3 caused by shrinkage of the buffer opening 26 is effectively prevented.
In the suspended ceiling device, after the plate 3 is lifted between two adjacent secondary keels 2 through lifting equipment, the edges of the two sides of the plate respectively contact and press the chamfer structures 24 at the lower ends of the secondary keels 2, the chamfer structures 24 shrink inwards after being subjected to pressure, so that the edges of the plate 3 can smoothly slide into the area above the chamfer structures, after the pressure is released, the chamfer structures 24 recover, and the lower surfaces of the edges of the plate 3 are limited on the transverse surfaces 242 of the chamfer structures 24, so that stable support is realized. In addition, in the process that the plate 3 continues to ascend in place, the side surface of the edge of the plate 3 also contacts the outer wall of the lower opening cavity 44 of the clamp 42 of the connecting piece 4 and applies a certain transverse extrusion force to the lower opening cavity, so that the connection stability between the plate 3 and the secondary joist 2 is enhanced, and on the other hand, the lower opening cavity 44 of the clamp 42 is further closed, so that the clamping effect on the upper half structure 25 of the secondary joist 2 is formed, and the loosening phenomenon caused by vibration or external force is prevented. The dual limiting design that the edge of the plate 3 is simultaneously matched with the bearing surface of the chamfer structure 24 in a supporting way and is abutted against the outer wall of the clamp 42 not only improves the structural stability of the whole suspended ceiling system, but also effectively avoids the problem that the plate 3 can incline or fall off in the long-term use process, and has good safety and practicability.
In the suspended ceiling device, the adopted plate 3 is preferably a foam concrete heat-insulating plate or other light energy-saving building materials with similar performance, and the plate 3 has good heat insulation and sound insulation performance, is light in weight and convenient to carry and install, and is particularly suitable for indoor decoration engineering of large-space public buildings such as hospitals, schools and markets. In the actual construction process, the plate 3 is lifted to the upper side of the area to be installed through the lifting equipment and is adjusted to the position between the two adjacent secondary keels 2, and then an operator starts the lifting equipment to enable the plate 3 to slowly lift, and the edges of the two sides of the plate are respectively contacted with and extruded to form the chamfer structures 24 at the lower ends of the secondary keels 2. Due to the elasticity of the chamfer 24, it contracts inwards after being subjected to pressure, allowing the edges of the sheet 3 to slide into the area above it. When the plate 3 continues to rise and is separated from the chamfering structure 24, the chamfering structure 24 is restored, and the lower surface of the edge of the plate 3 immediately falls on the bearing surface of the chamfering structure 24, so that stable clamping is completed. The whole installation process does not need manual alignment or bolt fastening, so that the construction efficiency is remarkably improved, and meanwhile, the potential safety hazard caused by high-altitude operation is avoided. In addition, because the weight of the plate 3 is lighter, the elastic clamping mechanism of the chamfer structure 24 of the secondary joist 2 is matched, the phenomenon of loosening or falling off after installation can be effectively prevented, and the long-term stability and the safety of the suspended ceiling system are ensured.
Referring to fig. 1 to 6, the present invention provides a ceiling apparatus suitable for interior decoration engineering of public building, which comprises four main stages of main joist 1 installation, secondary joist 2 installation, sheet material 3 installation and expansion member 5 installation. The installation method is simple and convenient to operate, has a stable structure, and is particularly suitable for large-space public building scenes adopting the lightweight heat-preservation energy-saving plates 3 such as foam concrete.
The main joist 1 is installed, a plurality of main suspenders 11 are preset on a ceiling according to the design space, the main joist 1 is fixed at the lower end of each main suspender 11 through nuts, the construction of the whole skeleton of the main joist 1 is completed, the installation of all main joists 1 is kept horizontal and consistent, and the installation precision of subsequent components is ensured.
The connecting piece 4 is installed, the upper end of a screw rod 41 of the connecting piece 4 is connected below the main keel 1 in a threaded manner, the lower end of the screw rod 41 slides into and is clamped in the upper opening cavity 43 of the clamp 42 from the side surface of the upper opening cavity 43, the upper opening cavity 43 plays a limiting role on the head of the screw rod 41, falling is prevented, and the installation and positioning between all the connecting pieces 4 and the main keel 1 are completed.
The installation of the secondary joist 2, namely, the upper half part structure 25 of the secondary joist 2 is jacked up from the bottom of the lower opening cavity 44 of the clamp 42, the lower opening cavity 44 is automatically opened after being stressed, the secondary joist 2 is allowed to be inserted, the lower opening cavity 44 is rebound closed after the stress is released, the clamping and fixing of the secondary joist 2 are realized, after the secondary joist 2 is inserted in place, the second transverse plate 252 of the upper half part of the secondary joist 2 is hooked by the hooks 45 of the lower opening cavity 44 of the clamp 42, the primary support is formed, the steps are repeated, and the installation of all the secondary joists 2 is completed in sequence, so that the complete suspended ceiling support framework is formed.
The plate 3 is installed, the plate 3 (such as a foam concrete heat-insulating plate) is placed on a tray of lifting equipment, the lifting equipment is moved to the position above the area to be installed, the lifting equipment is started to enable the plate 3 to be approximately aligned with a gap between two adjacent secondary keels 2, the lifting equipment is slowly lifted to the installation height, edges on two sides of the plate 3 respectively contact and press a chamfering structure 24 (a third inclined surface 244) at the lower end of the secondary keels 2, the chamfering structure 24 is contracted inwards after being pressed, a buffering opening 26 is contracted, the plate 3 continuously rises to pass through the chamfering structure 24, after the pressure is released, the chamfering structure 24 is reset, and the lower surface of the edges of the plate 3 falls on a transverse surface 242 of the chamfering structure 24 to complete clamping. Simultaneously, the edge of the plate 3 simultaneously applies extrusion force to the outer side of the lower opening cavity 44 of the clamp 42, so that the plate is closed, and the structural stability is further enhanced. Repeating the above actions, and completing the installation of all the plates 3 block by block.
The expansion piece 5 is installed, the long round structure 51 of the expansion piece 5 is aligned with the through hole 254 at the top of the secondary joist 2 and is vertically inserted, the width of the long round structure 51 is smaller than the inner transverse narrowest part of the secondary joist 2, the length is larger than the distance, the expansion piece 5 is conveniently rotated and limited after insertion, the expansion piece 5 is rotated 90 degrees after insertion, the long round structure 51 is transversely clamped, the round table-shaped structure 53 at the lower part of the expansion piece 5 is synchronously inserted into the buffer opening 26 at the lower end of the secondary joist 2, at the moment, the hooks 45 in the cavity 44 at the lower opening of the clamp 42 are hooked on the lower surface of the long round structure 51 of the expansion piece 5, the expansion piece 5 moves upwards under the tensile force, the plate 3 is downwards driven by the gravity to form opposite acting force, under the action of the two, the round table-shaped structure 53 of the expansion piece 5 is tightly attached to the buffer opening 26 of the secondary joist 2, the expansion piece 3 is prevented from loosening or falling caused by shrinkage of the opening, and the rest expansion pieces 5 are sequentially installed in sequence, so that the whole bearing performance and structural stability are improved.
Finally, it should be pointed out that the above detailed method and apparatus are only examples, which can be modified in different ways by a person skilled in the art without departing from the scope of the invention.
Claims (10)
1. A ceiling device for public building interior decoration engineering is characterized by comprising:
The main keel (1) is fixedly arranged below a building ceiling through the main suspender (11);
the secondary keel (2) is detachably arranged below the main keel (1) through a connecting piece (4);
the plate (3) is clamped between two adjacent false keels (2);
wherein, two sides of the lower part of the secondary keel (2) are symmetrically provided with outwardly extending chamfer structures (24), and a buffer opening (26) is formed between the two chamfer structures (24);
The chamfering structure (24) deforms and is folded when receiving the upward pressure applied by the plate (3), the buffer opening (26) is reduced, the side surface of the plate (3) can slide into the upper portion of the chamfering structure (24) along the outer side of the chamfering structure (24), and the plate (3) and the secondary keel (2) are quickly clamped and fixed after the buffer opening (26) is released in pressure.
2. The suspended ceiling device for public building interior decoration engineering according to claim 1, wherein the cross section of the secondary joist (2) is of a bilateral symmetry structure and comprises a first side part (21) and a second side part (22), and the first side part (21) and the second side part (22) are respectively connected to two sides of a first transverse plate (23) at the top;
the first side part (21) and the second side part (22) comprise a first vertical plate (251), a second transverse plate (252) and a second vertical plate (253) which are sequentially arranged along the vertical direction, and the first transverse plate (23), the first vertical plate (251), the second transverse plate (252) and the second vertical plate (253) jointly form an upper half structure (25) of the false keel (2);
The first vertical plate (251) is vertically connected to the lower surface of the first transverse plate (23), the second transverse plate (252) horizontally extends inwards and is vertically connected with the first vertical plate (251), and the second vertical plate (253) is connected to the lower end of the second transverse plate (252) and vertically extends downwards.
3. The suspended ceiling device for public building interior decoration engineering according to claim 2, wherein a first inclined surface (241) inclined outwards is arranged at the lower end of the second vertical plate (253), a transverse surface (242) is connected to the lower end of the first inclined surface (241), a second inclined surface (243) inclined inwards is arranged on the lower surface of the transverse surface (242), and a third inclined surface (244) inclined upwards is connected to the lower end of the second inclined surface (243);
The first inclined surface (241) and the third inclined surface (244) are connected to the outer side and the inner side of the lower surface of the second vertical plate (253);
The first inclined surface (241), the transverse surface (242), the second inclined surface (243) and the third inclined surface (244) jointly form the chamfer structure (24) for clamping the end part of the plate (3).
4. The suspended ceiling device for public building interior decoration engineering according to any one of claims 1-3, wherein an expansion piece (5) for filling or enhancing the structural performance of the suspended ceiling device is arranged inside the secondary joist (2), and the expansion piece (5) is inserted upwards into the secondary joist (2) from a buffer opening (26) at the lower end of the secondary joist (2);
the upper half structure (25) of the secondary keel (2) is provided with a through hole (254), and the expansion piece (5) is positioned and installed through the through hole (254).
5. The suspended ceiling device for public building interior decoration engineering according to claim 4, wherein the expansion piece (5) comprises three parts connected up, down and up:
The upper part is an oblong structure (51) which is inserted into the through hole (254) in an adapting way, wherein the width of the oblong structure (51) is smaller than the distance of the inner transverse narrowest part of the secondary joist (2), and the length of the oblong structure is larger than the distance, so that the transverse limit is realized;
The middle part is a cylindrical connecting section (52);
The lower part is a round table-shaped structure (53), and the outer wall of the round table-shaped structure is attached to a third inclined plane (244) in the chamfer structure (24) and is used for forming a matched support with the chamfer structure (24) at the lower part of the secondary keel (2).
6. The suspended ceiling device for public building interior decoration engineering according to claim 5, wherein a plurality of expansion pieces (5) are arranged on one secondary keel (2);
the connecting pieces (4) are at least in one-to-one correspondence with the expansion pieces (5), and the number of the expansion pieces (5) can be more than the number of the connecting pieces (4).
7. The suspended ceiling device for public building interior decoration engineering according to claim 6, wherein the connecting piece (4) comprises a screw (41) screwed below the main keel (1);
the screw bolt (41) is provided with anchor clamps (42) below, anchor clamps (42) divide into upper shed (43) and lower shed (44), wherein the nut joint of screw bolt (41) is in upper shed (43), lower shed (44) centre gripping is in the last half of secondary joist (2).
8. The suspended ceiling device for public building interior decoration engineering according to claim 7, wherein the lower opening chamber (44) is provided with a hook (45) extending inwards, the hook (45) is hooked below the second transverse plate (252) of the secondary joist (2), the lower surface of the oblong structure (51) of the expansion member (5) is lower than the lower surface of the second transverse plate (252), and the hook (45) is hooked on the lower surface of the oblong structure (51).
9. Suspended ceiling device for public building interior decoration engineering according to claim 7 or 8, characterized in that the lower surface of the edge of the sheet (3) is placed on the transversal face (242) of the chamfer structure (24);
The side face of the edge of the plate (3) is abutted against the outer wall of a lower opening cavity (44) of the clamp (42).
10. The suspended ceiling device for public building interior decoration engineering according to any one of claims 1-3 and 5-8 is characterized in that the plate (3) is a foam concrete heat-insulating plate or other light energy-saving building materials, and the plate (3) can be directly buckled in a chamfer structure (24) of the secondary joist (2) through lifting equipment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202510969662.8A CN120797887B (en) | 2025-07-15 | 2025-07-15 | A ceiling device for interior decoration projects of public buildings |
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| CN202510969662.8A CN120797887B (en) | 2025-07-15 | 2025-07-15 | A ceiling device for interior decoration projects of public buildings |
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| CN120797887B (en) | 2026-04-03 |
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