Suspended ceiling

Abstract

The utility model relates to the technical field of buildings, and provides a suspended ceiling. The suspended ceiling comprises a hoisting assembly, a sound insulation assembly and a suspended ceiling assembly. Wherein the sound insulation assembly comprises sound insulation cotton, sound absorption wedges and sound insulation felt, and the sound insulation cotton is arranged below the hoisting assembly; the multiple sound absorption wedges are arranged on the side, away from the hoisting assembly, of the sound insulation cotton at intervals. The sound-proof felt is arranged on one side, deviating from the sound-proof cotton, of the sound-absorbing wedge; the suspended ceiling assembly is arranged below the deadening felt and detachably connected with the hoisting assembly. The suspended ceiling overcomes the defect that in the prior art, a suspended ceiling cannot effectively block high-frequency noise generated in a machine room, the suspended ceiling capable of effectively preventing noise is achieved, the working environment of medical staff and the medical experience of patients are improved, and the influence of noise on work of the medical staff is avoided.

Description

Technical Field

[0001] This utility model relates to the field of building technology, and in particular to a suspended ceiling. Background Technology

[0002] In some indoor environments, a quiet environment is required, making the noise reduction function of the ceiling extremely important. For example, in the medical field, the radiotherapy simulation positioning room is a crucial location in the process of tumor radiotherapy. The simulation positioning machine, as a key device for developing radiotherapy plans, is used to accurately locate the sites to be irradiated before radiotherapy. However, during the operation of the machine room, the noise generated by the equipment and external noise interference not only affect the working environment of medical staff and the patient's medical experience, but may also potentially impact the accurate positioning of the equipment.

[0003] Existing suspended ceilings have certain limitations in sound insulation, making it difficult to meet the strict requirements of noise control in the machine room. They cannot effectively block and absorb the noise generated in the radiotherapy simulation positioning machine room, thus affecting the acoustic environment of the machine room. Utility Model Content

[0004] This utility model provides a suspended ceiling to solve the shortcomings of existing suspended ceilings in effectively blocking high-frequency noise generated in the computer room, and realizes a suspended ceiling that can effectively prevent noise, improve the working environment of medical staff and the medical experience of patients, and avoid the impact of noise on the work of medical staff.

[0005] This utility model provides a suspended ceiling, including:

[0006] Lifting components;

[0007] Sound insulation component, the sound insulation component comprising:

[0008] Sound insulation cotton is placed below the hoisting assembly;

[0009] Multiple sound-absorbing wedges are provided, and the multiple sound-absorbing wedges are spaced apart on the side of the sound insulation cotton away from the hoisting assembly;

[0010] Sound insulation felt is disposed on the side of the sound-absorbing wedge away from the sound insulation cotton;

[0011] The ceiling assembly is located below the sound insulation felt and is detachably connected to the mounting assembly.

[0012] According to the present invention, in a suspended ceiling, the cross-sectional area of ​​the sound insulation cotton gradually increases from the side facing the suspension assembly to the side facing the sound-absorbing wedge.

[0013] According to the present invention, a ceiling is provided in which a plurality of sound-absorbing holes are provided on the side of the sound-absorbing cotton facing the sound-absorbing felt, and the sound-absorbing holes are distributed on the outer periphery of the sound-absorbing wedge.

[0014] According to the present invention, in a suspended ceiling, the cross-sectional area of ​​the sound-absorbing wedge gradually decreases from the side facing the sound-insulating cotton to the side facing the sound-insulating felt.

[0015] According to the present invention, a ceiling is provided in which the sound insulation felt has protrusions and / or recesses on the side facing the ceiling assembly.

[0016] According to the present invention, a suspended ceiling is provided, the suspension assembly comprising:

[0017] At least two main keels, which are spaced apart along a first direction;

[0018] At least two secondary keels are arranged at intervals along a second direction, and the second direction and the first direction are set at an angle.

[0019] A locking fastener is provided at the intersection of the main keel and the secondary keel to fix the main keel and the secondary keel into one piece;

[0020] Multiple mounting components are located on the main keel for connection to the building.

[0021] According to the present invention, a suspended ceiling is provided, the mounting components include:

[0022] Connector, detachably mounted on the main keel;

[0023] A mounting rod is installed on the connector, and the length of the mounting rod is adjustable.

[0024] According to the present invention, a suspended ceiling is provided in which the main keel and the secondary keel are both filled with sound-absorbing material.

[0025] According to the present invention, a suspended ceiling assembly includes:

[0026] A lead plate is attached to the hanging plate assembly and positioned below the sound insulation component.

[0027] A boron-containing polyethylene sheet is placed below the lead plate of the hanging board assembly;

[0028] Gypsum board is provided below the boron-containing polyethylene board;

[0029] A metal buckle panel is provided below the plasterboard;

[0030] The fastener penetrates the metal buckle plate and is connected to the locking fastener.

[0031] According to the present invention, a suspended ceiling is provided in which the lead plate of the suspended panel assembly has a grid-like texture on the side facing the boron-containing polyethylene panel.

[0032] The ceiling provided by this utility model, when equipment operating noise or external sound waves enter the ceiling, the sound insulation felt first blocks high-frequency noise and attenuates mid- and low-frequency vibrations through its damping characteristics; after the sound waves enter the gradually changing structure of the sound-absorbing wedges, they are efficiently absorbed due to the continuous change in impedance, and the remaining sound energy is further dissipated through the porous structure of the sound insulation cotton. The rigid keel frame of the hoisting component suppresses structural sound transmission and prevents noise from being conducted through the building body. This utility model, through the synergistic effect of multiple materials, significantly reduces the reverberation time in the machine room and improves the clarity of the acoustic environment; at the same time, the modular design allows for adjustment of the density of the sound-absorbing wedges and the thickness of the sound insulation felt for different frequency bands of noise, adapting to the diverse noise reduction needs of medical equipment. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 This is an exploded view of the suspended ceiling provided by this utility model;

[0035] Figure 2 This is a front view of a portion of the ceiling structure provided by this utility model;

[0036] Figure 3 This is a partial structural diagram of the suspended ceiling provided by this utility model;

[0037] Figure 4 This is a structural schematic diagram of the ceiling hoisting assembly provided by this utility model.

[0038] Figure label:

[0039] 100: Lifting assembly; 110: Main keel; 120: Secondary keel; 130: Locking fastener; 140: Mounting component; 141: Connector; 142: Mounting rod;

[0040] 200: Sound insulation component; 210: Sound insulation cotton; 220: Sound-absorbing wedge; 230: Sound insulation felt;

[0041] 300: Ceiling assembly; 310: Lead plate; 320: Boron-containing polyethylene board; 330: Gypsum board; 340: Metal panel; 350: Fastener. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0043] The following is combined Figures 1-4 Describe the structure and working principle of this utility model.

[0044] Reference Figure 1 The present invention provides a suspended ceiling comprising a mounting assembly 100, a sound insulation assembly 200, and a suspended ceiling assembly 300. The sound insulation assembly 200 includes sound insulation cotton 210, sound-absorbing wedges 220, and sound insulation felt 230. The sound insulation cotton 210 is disposed below the mounting assembly 100. Multiple sound-absorbing wedges 220 are provided, spaced apart on the side of the sound insulation cotton 210 away from the mounting assembly 100. The sound insulation felt 230 is disposed on the side of the sound-absorbing wedges 220 away from the sound insulation cotton 210. The suspended ceiling assembly 300 is disposed below the sound insulation felt 230 and is detachably connected to the mounting assembly 100.

[0045] Specifically, the hoisting assembly 100 is fixedly connected to the building roof using expansion bolts. Its main body is a metal keel frame, with the keels locked together by clips or bolts. Sound insulation cotton 210 is fixed to the metal keel of the hoisting assembly 100 using adhesive, and its edges are riveted to the keel with pressure strips to prevent detachment. Sound-absorbing wedges 220 are arranged in an array, with the base of each wedge embedded in a pre-set groove in the sound insulation cotton 210 and secured with annular clamps to ensure uniform spacing and perpendicularity to the surface of the sound insulation cotton 210. Sound insulation felt 230 covers the pointed ends of the sound-absorbing wedges 220 and is bonded to the polyester fiber layer of the wedges 220 using a hot-pressing process. Its edges extend to the periphery of the sound insulation cotton 210 and are connected to the keel bolts of the hoisting assembly 100 via metal edge strips.

[0046] When equipment operating noise or external sound waves enter the ceiling, the sound insulation felt 230 first blocks high-frequency noise and attenuates mid-to-low-frequency vibrations through its damping characteristics. After sound waves enter the gradually changing structure of the sound-absorbing wedge 220, they are efficiently absorbed due to the continuous change in impedance. The remaining sound energy is further dissipated through the porous structure of the sound insulation cotton 210. The rigid keel frame of the hoisting assembly 100 suppresses structural sound transmission, preventing noise from being conducted through the building structure. This invention significantly reduces the reverberation time in the machine room and improves the clarity of the acoustic environment through the synergistic effect of multiple materials. Simultaneously, the modular design allows for adjustment of the density of the sound-absorbing wedge 220 and the thickness of the sound insulation felt 230 for different frequency noise bands, adapting to the diverse noise reduction needs of medical equipment.

[0047] In some possible embodiments, the sound insulation component 200 may be supplemented with a resonant sound-absorbing layer, which consists of a closed cavity and a micro-perforated plate. The cavity depth is adjusted according to the target frequency band. The micro-perforated plate is formed with sub-millimeter-sized holes by laser drilling. Inert gas is filled between the plate and the sound insulation felt 230 to enhance low-frequency absorption. The surface of the perforated plate of the ceiling component 300 may be laminated with a transparent dustproof film. The edges of the film are embedded in the sealing grooves of aluminum folded edges, which not only prevents dust from clogging the holes and affecting acoustic performance, but also maintains visual transparency.

[0048] This embodiment maintains the original noise reduction effect while expanding the low-frequency noise treatment range through a resonant sound-absorbing layer, extending the maintenance cycle through a dustproof film, and improving the flexibility of component adaptation through magnetic connectors. It is especially suitable for operating room or precision laboratory environments with higher requirements for cleanliness and frequency band adjustment.

[0049] Reference Figure 2 In some embodiments of this utility model, the cross-sectional area of ​​the sound insulation cotton 210 gradually increases from the side facing the hoisting assembly 100 to the side facing the sound-absorbing wedge 220.

[0050] Specifically, the cross-sectional area of ​​the sound insulation cotton 210 gradually expands from the side facing the hoisting assembly 100 to the side facing the sound-absorbing wedge 220, forming a trapezoidal structure. The top plane of the sound insulation cotton 210 is bonded and fixed to the metal keel of the hoisting assembly 100 with a high-strength adhesive, and locked around the perimeter with U-shaped metal pressure strips. The pressure strips are fixed to the keel with self-tapping screws to ensure that the sound insulation cotton 210 does not shift in the vertical direction. The base of the sound-absorbing wedge 220 is embedded in the matching groove at the flared end of the bottom of the sound insulation cotton 210. The inner wall of the groove is provided with a rubber buffer layer to reduce vibration transmission. The sound-absorbing wedge 220 is fixed to the sound insulation cotton 210 with nylon cable ties or ring clamps. The sound insulation felt 230 covers the tip of the sound-absorbing wedge 220, and its edge extends to the outer edge of the flared end of the sound insulation cotton 210. It is bonded to the sound insulation cotton 210 with hot melt adhesive. At the same time, the joint is reinforced with metal edging strips. The edging strips are connected to the keel of the hoisting assembly 100 by bolts to form a closed sound insulation layer.

[0051] In this embodiment, as the cross-sectional area of ​​the sound-absorbing cotton 210 gradually increases, the sound waves encounter a gradual change in medium density during propagation. Some of the sound energy is reflected back into the machine room due to impedance mismatch, while the remaining sound waves are absorbed step-by-step through the conical structure of the sound-absorbing wedge 220. The trapezoidal structure of the sound-absorbing cotton 210 increases the propagation path of the sound waves within the material, prolonging the energy attenuation time. Simultaneously, its flared bottom design makes the distribution of the sound-absorbing wedge 220 more uniform, reducing sound wave diffraction. The sound-absorbing felt 230 further blocks high-frequency noise and, together with the sound-absorbing wedge 220, optimizes mid-to-low frequency absorption. This structure, through geometrical gradation and material combination, enhances broadband noise control capabilities, reduces reverberation interference within the machine room, improves the positioning accuracy of radiotherapy equipment, and simultaneously reduces auditory fatigue for medical staff and patients.

[0052] In some possible embodiments, the flared end of the sound-absorbing cotton 210 can be equipped with a wavy transition structure, so that sound waves are scattered before entering the sound-absorbing wedge 220, thereby disrupting the coherent sound field and reducing the formation of standing waves. The sound-absorbing felt 230 can be laminated with a layer of nanofiber membrane. The membrane material is laminated with the sound-absorbing felt 230 through an electrospinning process, which improves high-frequency absorption efficiency without increasing the thickness. The tip of the sound-absorbing wedge 220 can be modified to a forked design, with the forking angle optimized according to the sound wave wavelength to enhance directional absorption of specific frequency bands.

[0053] In some embodiments of this utility model, the sound insulation cotton 210 has a plurality of sound-absorbing holes (not shown in the figure) on the side facing the sound insulation felt 230, and the sound-absorbing holes are distributed on the outer periphery of the sound-absorbing wedge 220.

[0054] Specifically, the sound insulation cotton 210 has several sound-absorbing holes on the side facing the sound insulation felt 230, and the sound-absorbing holes are distributed in a ring array on the outer periphery of the sound-absorbing wedge 220. The sound-absorbing holes are formed by CNC stamping, and the hole walls are chamfered to reduce airflow resistance. The top plane of the sound insulation cotton 210 is fixedly connected to the metal keel of the hoisting assembly 100 with epoxy resin adhesive, and stainless steel corner brackets are used to reinforce the positioning at the four corners. The corner brackets are fastened to the keel with countersunk screws.

[0055] In this embodiment, when noise enters the ceiling structure, some sound waves enter the porous structure of the sound-absorbing cotton 210 through the sound-absorbing holes. In the tortuous pores, friction converts the sound waves into heat energy. Simultaneously, the annular distribution of the sound-absorbing holes causes sound waves to scatter within the sound-absorbing cotton 210, disrupting sound wave coherence. The sound-absorbing wedge 220 performs secondary absorption on the sound waves that are not dissipated by the sound-absorbing holes, and its conical structure achieves progressive matching of acoustic impedance. The sound-absorbing felt 230 acts as a final barrier to block residual high-frequency noise and, together with the sealing structure, prevents sound leakage. This design, through the synergistic effect of the sound-absorbing holes and the sound-absorbing wedge 220, significantly improves mid-to-high frequency sound absorption efficiency and reduces noise reflection within the machine room. At the same time, the annularly distributed sound-absorbing holes optimize airflow distribution, avoiding eddy noise easily generated by traditional sound-absorbing structures, and ensuring a stable acoustic environment for the radiotherapy equipment.

[0056] In some possible embodiments, the sound-absorbing holes can be designed with a tapered shape, with the inlet diameter larger than the outlet diameter, causing a compression effect on sound waves within the channels to enhance low-frequency absorption. A honeycomb-like flow-guiding structure can be added to the interface between the sound-absorbing cotton 210 and the sound-absorbing wedge 220 to guide sound waves more evenly towards the sound-absorbing holes. The sound-absorbing felt 230 can be laminated with a layer of open-cell aluminum foam; the three-dimensional mesh structure of the aluminum foam increases the sound wave refraction path while maintaining air permeability.

[0057] Reference Figure 3 In some embodiments of this utility model, the cross-sectional area of ​​the sound-absorbing wedge 220 gradually decreases from the side facing the sound-insulating cotton 210 to the side facing the sound-insulating felt 230.

[0058] In this embodiment, the gradient cross-section design of the sound-absorbing wedge 220 achieves a continuous change in acoustic impedance, allowing sound waves to transition smoothly during propagation and reducing reflection loss. When sound waves enter from the sound insulation felt 230, they first pass through the tip of the sound-absorbing wedge 220. As the cross-sectional area gradually increases, the sound wave energy is gradually absorbed and converted into heat energy. The conical structure of the sound-absorbing wedge 220 extends the propagation path of sound waves in the material, increasing sound energy loss. The rigid connection at the base ensures structural stability, while the elastic contact at the tip avoids sound wave reflection at the interface. This design significantly improves the sound absorption coefficient in the mid-to-low frequency range while maintaining the sound absorption performance in the high frequency range, resulting in a more balanced overall sound insulation effect. The gradient cross-section also optimizes airflow distribution and reduces the generation of eddy noise, making it particularly suitable for medical environments with strict acoustic requirements.

[0059] In some possible embodiments, the conical surface of the sound-absorbing wedge 220 can be provided with helical guide grooves, the pitch of which gradually changes along the axial direction to guide the sound waves to rotate during propagation and extend the absorption path. The interior of the sound-absorbing wedge 220 can be designed as a multi-layered composite structure, with each layer having different acoustic impedance characteristics to form a gradient impedance matching.

[0060] Reference Figure 1 In some embodiments of this utility model, the sound insulation felt 230 has protrusions and / or recesses on the side facing the ceiling assembly 300, which can be wavy.

[0061] Specifically, the sound insulation felt 230 has a wavy surface structure on the side facing the ceiling assembly 300. This wavy structure is integrally formed with the sound insulation felt 230 body through a hot-pressing process. The crests of the wavy structure are connected to the back of the ceiling assembly 300 by elastic adhesive strips. The elastic adhesive strips are made of closed-cell foamed polyethylene material and are fixed to the crests of the sound insulation felt 230 and the back of the ceiling assembly 300 respectively by double-sided tape. The mounting frame of the ceiling assembly 300 has an adjustment mechanism consisting of an adjusting screw and a positioning nut. The adjusting screw passes through the mounting hole on the frame and engages with the positioning nut. By rotating the adjusting screw, the distance between the ceiling assembly 300 and the sound insulation felt 230 can be changed. The edges of the sound insulation felt 230 are fixed by metal strips with a U-shaped cross-section. After wrapping the edges of the sound insulation felt 230, the strips are connected to the keel of the hanging assembly 100 by self-tapping screws. The troughs of the wave-shaped structure are equipped with reinforcing ribs, which are made of glass fiber reinforced plastic and are bonded to the sound insulation felt 230 with epoxy resin adhesive.

[0062] In this embodiment, the wavy surface structure of the sound insulation felt 230 increases the sound wave propagation path. When sound waves enter from the ceiling component 300, they undergo multiple reflections and interferences on the wavy surface, causing the sound energy to gradually attenuate. The elastic connection between the crests of the wavy structure and the ceiling component 300 creates a damping effect, effectively absorbing mid-to-low frequency vibrations. The reinforcing ribs at the troughs increase structural rigidity, preventing the sound insulation felt 230 from resonating under sound pressure. This design, through geometric optimization and material combination, significantly improves the acoustic performance of the sound insulation felt 230. The wavy surface also improves airflow distribution, reducing secondary noise generated by air turbulence. Simultaneously, the elastic connection avoids the sound bridging effect caused by rigid contact, making the overall sound insulation performance more stable and reliable.

[0063] In some possible embodiments, the crests of the wavy surface can be provided with micro-sound-absorbing holes that penetrate the entire thickness of the sound-absorbing felt 230, with the hole walls employing a tapering design to enhance the Helmholtz resonance effect.

[0064] Reference Figure 4In some embodiments of this utility model, the hoisting assembly 100 includes at least two main keels 110, at least two secondary keels 120, locking fasteners 130, and multiple mounting components 140. The main keels 110 are spaced apart along a first direction; the secondary keels 120 are spaced apart along a second direction, the second direction and the first direction forming an angle; the locking fasteners 130 are located at the intersection of the main keels 110 and secondary keels 120, used to fix the main keels 110 and secondary keels 120 together; the mounting components 140 are located on the main keels 110, used for connection to the building. The interiors of both the main keels 110 and secondary keels 120 are filled with sound-absorbing material. The mounting components 140 include a connector 141 and a mounting rod 142. The connector 141 is detachably mounted on the main keel 110; the mounting rod 142 is located on the connector 141, and the length of the mounting rod 142 is adjustable.

[0065] Specifically, the main keel 110 and secondary keel 120 of the hoisting assembly 100 are C-shaped metal profiles. The main keel 110 is arranged at equal intervals longitudinally, and the secondary keel 120 is arranged at equal intervals transversely, forming an orthogonal grid pattern. The locking fastener 130 is a cross-shaped metal component with slots at its four ends, and anti-slip rubber pads are provided on the inner walls of the slots. During installation, the slots of the locking fastener 130 are inserted into the ends of the main keel 110 and secondary keel 120 and secured with through bolts, the bolt heads of which are equipped with anti-loosening washers. The internal cavities of the main keel 110 and secondary keel 120 are filled with polyurethane foam sound-absorbing material, which is filled entirely by high-pressure injection. The connector 141 is an L-shaped metal plate, the vertical side of which is connected to the web of the main keel 110 by T-bolts, and the horizontal side is provided with threaded holes. The mounting rod 142 is an adjustable-length metal rod with an external thread at the upper end that mates with the threaded hole of the connector 141, and an expansion bolt at the lower end that connects to the building roof. A locking nut is located in the middle of the mounting rod 142 to fix the adjusted length.

[0066] In this embodiment, the grid structure formed by the main keel 110 and the secondary keel 120 provides a stable support frame for the entire ceiling system, and the sound-absorbing material filled inside effectively absorbs structural noise transmitted through the keel. The rigid connection of the locking fastener 130 ensures a continuous force transmission path between the main and secondary keels, avoiding abnormal noise caused by vibration. The detachable design of the connector 141 facilitates later maintenance and adjustment, and the length adjustment function of the mounting rod 142 can compensate for the unevenness of the building ceiling. Through the organic combination of structural design and material selection, the mounting assembly 100 not only meets the load-bearing requirements of the ceiling system but also provides additional sound absorption. The grid-like arrangement of the keel system makes the load distribution more uniform, and the adjustable installation method improves construction efficiency, making it particularly suitable for use in medical environments where strict noise control is required.

[0067] In some possible embodiments, the cross-sections of the main keel 110 and the secondary keel 120 can be designed as a double-layer hollow structure, with the inner layer filled with sound-absorbing material and the outer layer forming a sealed cavity to enhance sound insulation performance. Rubber damping pads can be added to the connection points of the locking fastener 130, employing a sandwich structure with a high-damping rubber middle layer. The contact surface between the connector 141 and the main keel 110 can be machined into a serrated shape to increase the friction coefficient and improve connection stability. The mounting rod 142 can adopt a nested double-tube design, with graduations on the inner tube for precise length adjustment. This embodiment, while maintaining the original functions, enhances sound insulation through a double-layer keel, improves vibration isolation through damping pads, and enhances stability through serrated connections, enabling the hoisting system to meet higher acoustic environment requirements, especially suitable for vibration-sensitive precision medical equipment rooms.

[0068] Reference Figure 1 In some embodiments of this utility model, the ceiling assembly 300 includes a lead plate 310, a boron-containing polyethylene board 320, a gypsum board 330, a metal snap-on panel 340, and a fastener 350. The lead plate 310 is positioned below the sound insulation assembly 200; the boron-containing polyethylene board 320 is positioned below the lead plate 310; the gypsum board 330 is positioned below the boron-containing polyethylene board 320; the metal snap-on panel 340 is positioned below the gypsum board 330; and the fastener 350 penetrates the metal snap-on panel 340 and is connected to the locking fastener 130. The lead plate 310 has a grid-like texture on the side facing the boron-containing polyethylene board 320.

[0069] Specifically, the lead plate 310 of the hanging panel assembly is fixedly connected to the bottom frame of the sound insulation component 200 by pre-embedded bolts, with the bolt heads recessed into the surface of the lead plate to avoid protrusion. The side of the lead plate 310 facing the boron-containing polyethylene board 320 is mechanically embossed to form a grid-like texture with uniform depth. The boron-containing polyethylene board 320 is bonded to the lead plate 310 with a special adhesive, which is evenly applied into the grid-like grooves of the lead plate 310. The gypsum board 330 is connected to the boron-containing polyethylene board 320 by self-tapping screws, with the screws spaced in an equilateral triangle pattern. The screw heads are embedded in the surface of the gypsum board 330 and treated with rust prevention. The metal buckle plate 340 is made of aluminum alloy and has snap-fit ​​grooves on its edges, allowing for quick connection to the pre-embedded connector below the gypsum board 330 via spring clips. The fastener 350 is a stainless steel double-ended bolt, one end of which passes through the center hole of the metal buckle plate 340 and is threaded into the locking fastener 130; the other end has an anti-loosening nut. The joints between the layers of boards are filled with elastic sealant to ensure overall airtightness.

[0070] In this embodiment, the lead plate 310 of the hanging panel serves as the first barrier, its high density effectively blocking high-frequency electromagnetic radiation and airborne noise. The grid-like texture increases the surface contact area, improving the adhesion strength with the boron-containing polyethylene plate 320. The boron-containing polyethylene plate 320 provides good shielding against neutron radiation, while its elastic modulus helps absorb mechanical vibration. The gypsum board 330 provides fire resistance and structural rigidity, and its porous nature aids in sound energy absorption. The metal buckle plate 340, as the outermost layer, not only serves a decorative purpose but also reflects residual electromagnetic waves. The rigid connection of the fasteners 350 ensures that the materials of each layer work together, preventing delamination due to vibration. This multi-layered composite structure achieves multiple protections against electromagnetic radiation, neutron radiation, and sound waves through the complementary advantages of material properties, while meeting the requirements of fire resistance, moisture resistance, and aesthetics in medical environments, making it suitable for use in special medical spaces such as radiotherapy rooms.

[0071] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A ceiling, characterized in that include: Lifting assembly (100); Sound insulation component (200), the sound insulation component (200) comprising: Sound insulation cotton (210) is disposed below the hoisting assembly (100); Multiple sound-absorbing wedges (220) are provided, and the multiple sound-absorbing wedges (220) are spaced apart on the side of the sound insulation cotton (210) away from the hoisting assembly (100); Sound insulation felt (230) is disposed on the side of the sound-absorbing wedge (220) away from the sound insulation cotton (210); The ceiling assembly (300) is located below the sound insulation felt (230) and is detachably connected to the hoisting assembly (100).

2. The ceiling of claim 1, wherein The cross-sectional area of ​​the sound insulation cotton (210) gradually increases from the side facing the hoisting assembly (100) to the side facing the sound-absorbing wedge (220).

3. The suspended ceiling according to claim 2, characterized in that, The sound insulation cotton (210) has a plurality of sound-absorbing holes on the side facing the sound insulation felt (230), and the sound-absorbing holes are distributed on the outer periphery of the sound-absorbing wedge (220).

4. The suspended ceiling according to any one of claims 1-3, characterized in that, The cross-sectional area of ​​the sound-absorbing wedge (220) gradually decreases from the side facing the sound-absorbing cotton (210) to the side facing the sound-absorbing felt (230).

5. The suspended ceiling according to any one of claims 1-3, characterized in that, The sound insulation felt (230) has protrusions and / or recesses on the side facing the ceiling assembly (300).

6. The suspended ceiling according to claim 1, characterized in that, The hoisting assembly (100) includes: At least two main keels (110) are arranged at intervals along a first direction; At least two secondary keels (120) are arranged at intervals along a second direction, and the second direction and the first direction are arranged at an angle. A locking fastener (130) is provided at the intersection of the main keel (110) and the secondary keel (120) to fix the main keel (110) and the secondary keel (120) into one piece; Multiple mounting components (140) are provided on the main keel (110) for connection to the building.

7. The suspended ceiling according to claim 6, characterized in that, The mounting component (140) includes: The connector (141) is detachably provided on the main keel (110). A mounting rod (142) is provided on the connector (141), and the length of the mounting rod (142) is adjustable.

8. The suspended ceiling according to claim 6, characterized in that, The main keel (110) and the secondary keel (120) are both filled with sound-absorbing material.

9. The suspended ceiling according to claim 6, characterized in that, The ceiling assembly (300) includes: A lead plate (310) is attached to the suspension plate assembly below the sound insulation component (200); A boron-containing polyethylene sheet (320) is disposed below the lead plate (310) of the hanging board assembly; A gypsum board (330) is disposed below the boron-containing polyethylene board (320); A metal snap-on panel (340) is disposed below the plasterboard (330); The fastener (350) passes through the metal buckle plate (340) and is connected to the locking fastener (130).

10. The suspended ceiling according to claim 9, characterized in that, The lead plate (310) of the hanging board assembly has a grid-like texture on the side facing the boron-containing polyethylene plate (320).

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