1022results about "Flooring insulations" patented technology

The invention discloses an assembly type efficient sound insulation cover convenient to install, and relates to the technical field of sound insulation covers. Comprising a plurality of pieces of main body square steel, the main body square steel are linearly and evenly distributed at equal intervals, jacking mechanisms used for improving the bottom supporting strength are arranged on the inner walls of the main body square steel correspondingly, and assembly type connecting mechanisms used for improving the connecting strength and stability are installed in the main body square steel correspondingly; according to the assembly type efficient sound insulation cover convenient to install, main body square steel is inserted and limited in a penetrating and inserting mode through the assembly type connecting mechanism, the defect that limiting performance is insufficient due to the fact that a lap joint mode is directly used in a traditional structure is overcome, the whole assembly process is simpler and more convenient, rubber pads and expansion water stop strips are arranged at splicing joints, and the assembly efficiency is improved. The vibration transmission of equipment can be blocked, the inherent frequency is kept away from the vibration frequency of the equipment, secondary noise caused by resonance is avoided, meanwhile, through gaps are reduced, the noise is prevented from leaking from the insertion hole position, and the problem of noise leakage is solved.

The invention provides a movable sound insulation dustproof construction shed, a plurality of supporting mechanisms are sequentially arranged in a shed body in the X-axis direction, and each supporting mechanism comprises two telescopic rods oppositely arranged in the Y-axis direction, a supporting assembly erected on the two telescopic rods and a walking assembly connected to the lower end of each telescopic rod; each telescopic rod is provided with a first limiting assembly used for limiting a sound insulation plate installed on the telescopic rod, and the supporting assembly comprises a first arc-shaped supporting rod and a second arc-shaped supporting rod which are used for supporting the shed body located at the upper ends of the two telescopic rods and can be oppositely folded. The walking assembly is used for driving each telescopic rod to move or stop, so that the problems that an existing dustproof noise reduction shed lacks comprehensive shielding and sound insulation measures on a device to be shielded, and sound insulation felt cloth is inconvenient to disassemble and assemble, so that the dustproof noise reduction effect and stability of the dustproof noise reduction shed are poor are solved.

To provide a partition wall using wood finishing material and having excellent sound insulation performance.SOLUTION: A partition wall P includes sound insulators 11 and 12 arranged and erected facing each other at a predetermined interval, a wood finishing material 20 covering the surface of at least one of the sound insulators 11 and 12, and a support member 30 for the sound insulators 11 and 12 and the wood finishing material 20, which is interposed between the sound insulators 11 and 12. At a butt joint 25 of the wood finishing material 20, a flange 31b of the support member 30 is in contact with the sound insulator 11. The wood finishing material 20 is attached to the flange 31b of the support member 30 by means of a fitting (screw 17) that passes through the sound insulators 11 and 12.SELECTED DRAWING: Figure 1

The invention relates to the technical field of building materials, in particular to a bio-based multifunctional sound insulation wallboard and a preparation method thereof. The wallboard comprises a sound absorption layer and a sound insulation layer. The sound absorption layer is cooperatively constructed by an inactivated mycelium three-dimensional porous framework and microalgae biomass, and the sound insulation layer is a high-density complex formed by compounding bio-based raw materials such as wood fiber, straw, recycled paper pulp and shell filler. And the two are combined through a biological-physical mechanical interlocking interface formed by hypha growth, extension and embedding to form a natural acoustic gradient structure from porous low acoustic impedance to compact high acoustic impedance. According to the preparation method, an in-situ growth process of mycelium culture and microalgae coating is embedded into a hot-pressing process, a three-dimensional anchoring network is formed by actively embedding mycelia into the sound insulation layer, the microalgae permeates into pores and is subjected to hot pressing to generate biomacromolecules for bonding and filling, a porous structure is synchronously constructed by a one-step method, and firm interlayer bonding is realized. The wallboard has excellent broadband acoustic performance, stable bonding strength and low-carbon and environment-friendly benefits.

The invention belongs to the technical field of automatic control, and particularly relates to a large-span ellipsoidal glass structure space noise reduction method based on sound field optimization, and the method comprises the steps: 1, transmitting a sample noise in an ellipsoidal glass structure through a sound wave generator, building a sound wave propagation model to describe the behavior of the sample noise in the ellipsoidal structure, an incident sound field is obtained; 2, analyzing the propagation characteristics of the sample noise in the ellipsoidal glass structure to obtain an acoustic structure coupling equation, and solving the acoustic structure coupling equation to obtain structural vibration displacement; 3, obtaining a sound radiation field of the ellipsoidal glass structure according to the structural vibration displacement; and step 4, combining the incident sound field and the sound radiation field, and performing spatial noise reduction by reflecting the sound pressure of the sound field. According to the method, the problems of poor adaptability and low control precision of a traditional noise reduction method in a non-uniform structure are effectively solved, and the noise reduction efficiency, the control sensitivity and the environment adaptability of a building space are remarkably improved.

The utility model discloses a sound-proof decorative plate, which relates to the technical field of decorative plates and comprises a plate main body, the plate main body comprises a decorative plate and a base plate, a sound-proof plate is connected between the decorative plate and the base plate, and the sound-proof plate comprises a front sound-proof plate and a rear sound-proof plate. A plurality of cavity grooves are formed in one side of the front sound insulation plate and one side of the rear sound insulation plate, complex reflection and scattering paths can be formed through the sound insulation folded plates, the contact opportunity of sound waves and sound absorption materials is increased, the problem that the sound insulation effect of a decorative plate is poor is solved, and the sound insulation performance of the decorative plate is improved; the front sound insulation layer, the middle sound insulation layer and the rear sound insulation layer are matched with aperture decreasing, so that the decorative plate can specifically absorb sound waves of different frequencies, the effect of widening the sound absorption frequency band is achieved, the problem that the decorative plate is poor in sound absorption effect of different frequency bands is solved, and the absorption effect of the decorative plate on the sound of different frequency bands can be improved.

The invention discloses a sound chamber module system which is provided with walls on four sides and comprises a door to create an internal space, a main body frame arranged on one side of the wall, a video device arranged in the center of the main body frame and a plurality of audio devices arranged on two sides of the periphery of the video device, and the wall comprises a concrete layer. The sound absorption material layer is installed on the concrete layer, and the sponge component is doped with ferrite components. The sound absorption material layer comprises a semi-non-combustible sheet layer in which water and melamine resin powder are dissolved.

The invention relates to an acoustic insulation product (5) comprising a panel (1) made of porous material, based on foam or fibres, comprising a first face, referred to as back face (20), intended to face towards a wall, and a second face, referred to as front face (30), situated on the opposite side to the back face (20), and a layer, referred to as backing layer (2), which adheres to or is linked or coupled at least in part to the back face (20) of the panel (1) made of porous material, the backing layer (2) having an airflow resistance of between 5 kPa.s / m and 20 kPa.s / m, preferably between 7 kPa.s / m and 15 kPa.s / m. The acoustic insulation product according to the invention is able to improve both acoustic insulation and noise absorption.

The present application relates to the technical field of bathroom base plate, particularly relates to a leakproof assembled base plate for integral bathroom, which comprises a bottom support plate, a support outer frame, a supporting unit, a grid frame and a splicing plate, and can solve the following problems of the existing integral bathroom base plate: the gaps between the base plate modules cannot be compensated and sealed, thus water leakage is easy to occur, affecting the use effect; the slope of the base plate module cannot be adjusted, and it is difficult to drain water at the upper end of the base plate module; the present application can adjust the slope of the bathroom base plate by rotating the bolt to drive the positioning column to move up or down, so that the side of the inner bottom wall of the bathroom base plate near the drain gradually inclines downward as a whole, and the water at the upper end of the bathroom base plate flows to the inclined position, so as to accelerate the drainage speed and prevent water storage caused by small slope; the present application can insert the splicing plate between the support rod and the sealing baffle, and the jacking strip can jack up the splicing plate upward, so as to enhance the sealing strength between the splicing plate and the sealing baffle, thereby avoiding water leakage.

The utility model belongs to the field of floor heating, and particularly relates to a wet paving graphene floor heating system and a floor structure, the wet paving graphene floor heating system comprises a concrete layer, a waterproof layer, a graphene electric heating layer, an insulating layer, a heat preservation layer and a heat insulation layer which are sequentially paved from top to bottom, and aluminum foil is paved on the outer surface of the heat preservation layer. According to the wet laying graphene floor heating system, through the arrangement, the safety and the waterproof performance of the system are improved, and the heat loss is reduced.

The application discloses a construction method of a diamond sand floor, which can effectively prevent cracks from being generated on the floor after shrinkage by sinking a reinforcing mesh into fine stone concrete, so that the reinforcing mesh can generate effective tensile force on the surface of the fine stone concrete; in addition, the method realizes accurate control of the amount of diamond sand by spreading the diamond sand in unit areas, so that the situation that the diamond sand is excessively or insufficiently spread in local areas is avoided, the diamond sand is fully combined with cement slurry by spreading the diamond sand twice, so that the diamond sand is prevented from falling off in the later period; and the light smoothing machine is used to perform light collection and finishing in the cross direction, so that the surface of the floor is smooth and bright, the compactness of the wear-resistant layer is high, and the stain resistance and wear resistance of the wear-resistant layer are further improved.

This utility model relates to the field of building structure engineering technology and discloses a prefabricated octagonal grid structure, including a connecting frame. A connecting mechanism is provided at the top of the connecting frame to connect it. Multiple support rods are equidistantly arranged around the bottom wall of the connecting frame, and an energy supply mechanism is provided on the outer wall of each support rod to achieve energy self-sufficiency for the structure. The connecting mechanism includes a connecting frame located at the top of the connecting frame. Multiple connecting slots are equidistantly formed on the top wall of the connecting frame, and these slots engage with the connecting frame. In this utility model, the outer connecting parts of the grid unit are precisely aligned with the mounting holes on the support rods. Bolts are passed through and tightened to firmly connect the grid unit to the support rods, enhancing the stability and load-bearing capacity of the structure. Furthermore, the octagonal grid shape enriches the visual effect of the building and meets diverse aesthetic needs.

The invention relates to the technical field of building waterproof materials, in particular to a rubber waterstop for a deformation joint of a combined concrete floor. The rubber waterstop sequentially comprises a composite rubber plate, a self-adhesive rubber sheet and an elastic supporting strip from top to bottom. The composite rubber plate is composed of a modified rubber plate and a glass fabric reinforcing layer arranged on the top of the modified rubber plate. The modified rubber plate is prepared by the following method: putting 90-110 parts by weight of a rubber base material, 4-6 parts by weight of nano zinc oxide, 1-1.5 parts by weight of stearic acid, 2-3 parts by weight of an anti-aging agent, 8-12 parts by weight of a functional aid, 20-30 parts by weight of dioctyl phthalate, 15-30 parts by weight of carbon black, 20-40 parts by weight of kaolin and 1-2 parts by weight of an accelerant into an internal mixer for mixing; performing extrusion molding on the rubber compound by adopting an extruder or a calender, and then performing cutting treatment, thereby obtaining the product. The rubber waterstop provided by the invention not only has excellent waterproof and dynamic sealing effects, but also has excellent mechanical properties and aging resistance; meanwhile, installation is flexible and efficient, and construction and later maintenance cost is reduced.

The invention provides a polymer floor and a preparation method thereof. The floor sequentially comprises a first outer layer, a first buffer layer, a first bonding layer, a base material layer, a second bonding layer, a second buffer layer and a second outer layer from top to bottom, wherein the base material layer is made of a first polymer, and the first polymer is selected from one or a mixture of more of PVC (polyvinyl chloride), PET (polyethylene glycol terephthalate), PETG (polyethylene glycol terephthalate) and TPU (thermoplastic polyurethane); wherein the first buffer layer and the second buffer layer are respectively and independently selected from one or more of non-woven fabrics and glass fiber mats; wherein the first bonding layer and the second bonding layer are blended membranes of grafted resin and a second polymer, and the second polymer is selected from one or a mixture of more of TPU (thermoplastic polyurethane), EAA (ethylene-acrylic acid copolymer) and PETG (polyethylene terephthalate glycol); wherein the first outer layer and the second outer layer are impregnated with glue.

The application belongs to the technical field of intelligent security and protection home, and relates to a smart floor system capable of identifying falling behaviors, which comprises a smart pressure sensing floor, a data acquisition system and an upper computer, the smart pressure sensing floor is a composite structure of a solid floor and a flexible sensing fabric, the flexible sensing fabric contains 40 electrodes and 40*40 array distributed sensors, and a piezoresistive sensing layer is constructed by a graphene-carbon black mixed filler to form a conductive network; the data acquisition system collects signals through FPC flat cable, transmits data to the upper computer through a sensor router and a public network router; the upper computer adopts a "cloud-edge-end" architecture, carries a machine learning identification algorithm, can accurately identify falling and intrusion behaviors, the falling identification accuracy is more than 98%, and the response time is less than or equal to 1 second; the terminal side is associated with a cloud program to realize alarm pushing and data viewing functions. The disclosed system simultaneously integrates two core functions of old people falling monitoring and home safety protection, and meets the diversified needs of users living alone.

The utility model discloses a building sound insulation curtain wall structure, which belongs to the technical field of building curtain walls and comprises a curtain wall frame, curtain wall glass and a partition plate, the curtain wall frame is provided with front-back through vent holes distributed in a U shape, and the curtain wall glass comprises front glass and rear glass. The front glass and the rear glass are fixedly arranged on the front inner side wall and the rear inner side wall of the curtain wall frame respectively, a sound insulation hollow cavity is formed between the front glass and the rear glass, the partition plate is composed of a front partition plate and a rear partition plate which are arranged on the front outer side wall and the rear outer side wall of the curtain wall frame respectively, and the front partition plate and the rear partition plate form annular grooves used for being filled with mucilage glue on the outer side of the curtain wall frame. An inflatable sealing structure is arranged on the outer side of the curtain wall frame in a surrounding mode and located between the front partition plate and the rear partition plate, a telescopic baffle is arranged on the inner side of the front partition plate, and the ventilation holes can be blocked when the telescopic baffle stretches out. The building sound insulation curtain wall structure is good in sound insulation effect and high in installation efficiency, tedious screw assembly is not needed, and the indoor and outdoor ventilation effect can be adjusted.

The invention relates to the technical field of functional materials, in particular to a sound-absorbing metal plate and a preparation method and application thereof. According to the sound-absorbing metal plate provided by the invention, the metal panel, the functional inner core and the back plate are adopted, and the core is that the sound-absorbing structure of the functional inner core is utilized, so that the noise reduction coefficient is more than 0.95. Specifically, according to the sound-absorbing metal plate provided by the invention, ethylene-vinyl acetate and polyethylene glycol terephthalate are adopted as basic resin, and the pore structure of the functional inner core is controlled by utilizing the synergistic effect of the foaming agent and the cross-linking agent, so that the pore structure is more beneficial to efficient absorption and reduction of sound reflection. According to the sound-absorbing metal plate, the functional inner core is further arranged between the metal face plate and the back plate, the sound-absorbing function and the structural stability of the functional inner core are further enhanced, and the sound-absorbing metal plate provided by the invention achieves the optimal performance. The sound-absorbing metal plate provided by the invention has the advantages of favorable flame retardancy, favorable safety, decoration and beautification functions and favorable overall effect.

A floor convenient to assemble is characterized in that a supporting block is arranged below the floor, a first concave cross rod is located below the supporting block, a second concave cross rod is located below the supporting block, damp-proof cotton is located below the supporting block, and clamping blocks and clamping groove blocks are arranged on the two adjacent side end faces of the four side end faces of the floor respectively; a plurality of clamping blocks and a plurality of clamping groove blocks are arranged, cavities exist between the first concave cross rod and the supporting block and between the second concave cross rod and the supporting block, and the cavities are filled with the damp-proof cotton. The floor has the advantages that the clamping blocks and the clamping groove blocks are arranged to facilitate splicing of a plurality of floors, the first concave cross rod, the second concave cross rod and the supporting blocks are arranged to support the floors and prevent the floors from making direct contact with the ground, the cavities are formed among the first concave cross rod, the second concave cross rod and the supporting blocks, the moisture-proof cotton is installed through the cavities, and the moisture-proof effect is achieved. The moisture-proof cotton can further prevent moisture, and damage to the floor due to moisture regain of the floor can be effectively prevented.

The invention discloses a formaldehyde-free environment-friendly multi-layer solid wood composite floor and a preparation method thereof.The formaldehyde-free environment-friendly multi-layer solid wood composite floor comprises a balance solid wood layer, a functional solid wood layer and a wear-resistant solid wood layer which are sequentially arranged from bottom to top; central areas among the balancing solid wood layer, the functional solid wood layer and the wear-resistant solid wood layer are formed by hot pressing of non-formaldehyde glue, and edge parts are formed by connecting of self-locking structures; first grid grooves are formed in the center area of the upper surface of the balance solid wood layer, a plurality of first pressing blocks corresponding to the first grid grooves are arranged on the lower surface of the functional solid wood layer, second grid grooves are formed in the center area of the upper surface of the functional solid wood layer, and a plurality of second pressing blocks corresponding to the second grid grooves are arranged on the lower surface of the wear-resistant solid wood layer. On the basis of ensuring the connecting strength of the floor, the floor has the characteristics that the glue consumption is reduced and the floor is more environment-friendly.

The utility model discloses a toilet chassis structure made of metal plates, which comprises a metal punching and folding chassis, a chassis extension strip is mounted at the top of the metal punching and folding chassis, a drainage box is arranged on one side in the metal punching and folding chassis, and the drainage box is mounted on the outer side of a first filling base block. The metal punching and folding chassis comprises a light wet chassis and a heavy wet chassis connected to one side of the light wet chassis, a rubber water stop strip is installed at the joint of the light wet chassis and the heavy wet chassis, a first water outlet is formed in one side of the light wet chassis, a second water outlet is formed in one side of the heavy wet chassis, and a first water drainer is installed at the bottom of the inner wall of the light wet chassis. A second drainer is installed on the outer side of the heavy wet chassis, a drainage catchment device is arranged on the outer side of the metal flushing and folding chassis, and a drainage vertical pipe is arranged on one side of the drainage catchment device. According to the toilet chassis structure made of the metal plates, the drainage efficiency of a toilet is improved, the phenomenon that water accumulated on the ground is serious is avoided, and use is convenient.

Porous materials such as diatomaceous earth have moisture-regulating and fire-resistant properties, as well as the ability to absorb harmful substances, helping to maintain a good living environment. However, using them as is on walls and other structures requires time and effort. Furthermore, acoustic panels made of wood and diatomaceous earth with a support material attached to the backside can expose the diatomaceous earth to the surface, which can cause cracks and other damage over time, potentially damaging the decorative appeal of the interior space. Therefore, the present application aims to provide a panel-shaped humidity-regulating building material that combines the breathability and moisture absorption properties of wood and diatomaceous earth, while also being easy to install and offering excellent design. [Solution] A panel-shaped humidity-control building material is manufactured by forming two or more integrated plate-shaped members each consisting of a surface layer made of a wooden material and a layer containing diatomaceous earth, and attaching the members in parallel at intervals to a base material made of a sound-absorbing material. The plate-shaped base material is formed to be slightly larger in both length and width than the integrated plate-shaped members arranged in parallel.

The utility model discloses an outdoor graphitized bamboo charcoal-based plate which comprises a core layer, a plurality of layers of laminated layers are symmetrically arranged on two sides of the core layer, the thickness of the core layer and the laminated layers is gradually reduced according to the gradient of the laminated layer from the core layer to the outermost side, graphite carbon layers are arranged between the core layer and the laminated layers, and graphite carbon layers are also arranged between the laminated layers. The surface of the plate is provided with a graphite carbon layer. The plate adopts a stress distribution homogenization design, namely, a layer thickness gradient design, so that stress concentration can be effectively dispersed and reduced, and the overall mechanical property and the damage resistance of the plate are improved. The graphitized bamboo charcoal has good thermal conductivity, hydrophobicity, mildew corrosion resistance and deformation resistance, meanwhile, the chemical stability of the non-graphitized bamboo charcoal is enhanced, and the graphitized bamboo charcoal is suitable for the fields of outdoor floors, wall decoration and the like and has wide market application prospects.

The utility model discloses a floor board with a good stain-resistant effect, which comprises a board body, a wear-resistant layer is arranged on the outer surface of the board body, the wear-resistant layer comprises a polyurethane coating and a fluorocarbon rubber coating, a stain-resistant layer is arranged on the outer surface of the wear-resistant layer, the stain-resistant layer comprises a polypropylene coating and an epoxy resin coating, the board body comprises a substrate layer, and the substrate layer comprises a polyurethane coating and a fluorocarbon rubber coating. A clamping groove part is arranged on the left side of the base layer, a protruding part is arranged on the right side of the base layer, the polyurethane coating is arranged on the outer surface of the plate body in a coating mode, the fluorocarbon rubber coating is arranged on the outer surface of the polyurethane coating in a coating mode, the polypropylene coating is arranged on the outer surface of the fluorocarbon rubber coating in a coating mode, and the epoxy resin coating is arranged on the outer surface of the polypropylene coating in a coating mode. According to the utility model, the stain-resistant layer is arranged, the epoxy resin coating contained in the stain-resistant layer can carry out first-layer stain-resistant protection treatment on the plate body, and the polypropylene coating can carry out second-layer stain-resistant protection treatment on the plate body after the epoxy resin coating is damaged, so that the stain resistance of the whole plate body is effectively improved.

Acoustic articles, decorative elements, and system comprising the same can include a decorative element having a first side and an opposing second side, and an acoustic article disposed on the opposing second side of the decorative element. The acoustic article can include an entangled fiber structure. The acoustic article can have a thickness of at least 0.4 mm, and can compress less than 25% of the thickness thereof when subjected to a pressure of 2 lbf / in2. A stiffening structure can be disposed between the decorative element and the acoustic article.

The utility model relates to the technical field of building decoration, and discloses a waterproof fixing structure for sound-absorbing decorative partition walls, which comprises two groups of sound-absorbing decorative partition walls, two groups of U-shaped bases and two groups of U-shaped side frames, and the two groups of sound-absorbing decorative partition walls and the two groups of U-shaped bases are respectively arranged in a butt joint manner. The two sets of U-shaped side frames are clamped to the two sides of the sound absorption decoration partition wall and the two sides of the U-shaped base correspondingly. U-shaped grooves are formed in the two ends of the U-shaped base. According to the waterproof fixing structure for the sound-absorbing decorative partition wall, the sound-absorbing decorative partition wall can be fixed in an assembling mode, meanwhile, water prevention is achieved from the bottom and the side face of the sound-absorbing decorative partition wall, moisture on the ground can be prevented from invading the interior of the sound-absorbing decorative partition wall, and the butt joint position of the sound-absorbing decorative partition wall is sealed through the U-shaped connecting frame; water is effectively prevented from permeating from the slab joints, the waterproof effect is improved, and meanwhile fixation of the sound-absorbing decorative partition wall is guaranteed.

The utility model relates to the technical field of sound insulation walls, and provides a sound insulation wall for house construction, which comprises a wall body, keels and sound insulation cotton, the keels are arranged on the wall body through first bolts, the sound insulation cotton is laid on the wall body between the adjacent keels, and a cement layer is arranged on one side of the sound insulation cotton far away from the wall body. An inner sound insulation board and an outer sound insulation board are arranged on the two sides of the keel respectively, the end face of the sound insulation cotton is arranged among the inner sound insulation board, the outer sound insulation board and one side of the keel, the outer sound insulation board and the keel are assembled and connected through second bolts, and sound insulation caps are arranged at the ends, away from the keel, of the second bolts. The first bolt and the second bolt do not make contact with each other, sound can be prevented from being directly transmitted to the wall body through the bolts through the sound bridge effect, the keel is completely wrapped by the inner sound insulation board, the outer sound insulation board and the sound insulation cotton, the possibility that the sound is transmitted on the keel can be effectively reduced, and the sound insulation effect is good. And the sound insulation cap is arranged to further prevent sound from being conducted through the exposed part of the second bolt.

The utility model relates to the field of wooden floor laying structures, and discloses a honeycomb supporting anti-cracking floor structure which comprises a floor slab and a bottom plate, a plurality of supporting frameworks are fixedly connected to the top end of the floor slab, two limiting grooves are formed in the bottom end of the bottom plate, waterproof cloth is arranged at the top end of the floor slab and corresponds to the position between every two adjacent supporting frameworks, and the top end of the floor slab is fixedly connected with the bottom plate. The inner walls of the limiting grooves are clamped to the outer wall of the supporting framework, a fixing frame is fixedly connected to the top end of the bottom plate, a honeycomb supporting block is fixedly connected to the inner wall of the fixing frame, a cover plate is fixedly connected to the top end of the fixing frame, an anti-skid assembly is arranged at the top end of the cover plate, and inserting blocks are arranged on the front side and the left side of the top end of the cover plate in a penetrating mode. According to the utility model, the honeycomb support block fixed in the fixed frame can support the cover plate to improve the strength of the cover plate and prevent the cover plate from cracking, and a certain amount of sound-absorbing materials can be filled in the holes of the honeycomb support block, so that the floor has a certain sound insulation effect to isolate downstairs sound and improve the comfort of a user.

The pneumatic curtain wall comprises a connecting mechanism, a main shaft of the connecting mechanism is arranged in a cylindrical connecting base in a penetrating mode and provided with an arc-shaped groove, and a torsional spring is arranged on the main shaft in a sleeving mode so as to provide elastic damping when two connecting blades rotate relatively. The angle limiting mechanism drives clamping nails inserted into the through holes of the blades to be clamped into the arc-shaped grooves through reset springs so as to limit the rotation range. According to the pneumatic curtain wall, the problems of visual disorder caused by free rotation and noise and fatigue cracking caused by lack of buffering are effectively solved through cooperative cooperation of torsional spring damping and staple bolt limiting; the elastic damping is used for absorbing impact energy, the service life is prolonged, and it is ensured that the curtain wall presents the uniform and controlled rhythm dynamic visual effect through precise limiting.