267results about How to "Improve sound insulation" patented technology

The application relates to the field of assembly building technology and discloses an assembled sound insulation and shock absorption laminated floor slab, which comprises a pouring plate, the outer part of the pouring plate is provided with a cladding structure, the cladding structure comprises a main frame, a side stop, an upper stop rod and a connecting groove, the two upper stop rods are fixedly installed on the side stop, the upper stop rod can be detachably connected with the main frame and forms a box body structure to cladding the pouring plate, a connecting groove is arranged on one side of the main frame, and a protrusion is fixedly arranged on the other side of the main frame; and a cushion block assembly, the pouring plate is assembled with the main frame, the side stop and the upper stop rod at a construction site after being prefabricated in a factory, the modular design makes the components separable for transportation, the size and weight of a transportation unit are greatly reduced, the transportation cost and hoisting difficulty are reduced, the on-site assembly is flexible, the size deviation of the actual installation position can be fine-tuned, and the adaptability is high.

The application provides an automobile engine compartment drainage air intake system and a vehicle, and belongs to the technical field of automobile parts, wherein the automobile engine compartment drainage air intake system comprises a ventilation cover plate, an air chamber, a left drainage groove structure and a right drainage groove structure; the middle part of the top plate of the air chamber is concave downward, and an accommodation space extending along the length direction of the air chamber is formed between the top plate and the ventilation cover plate; the left drainage groove structure is arranged below the ventilation cover plate; the right drainage groove structure comprises a drainage groove body, the drainage groove body is arranged in the accommodation space, and the opening of the drainage groove body is communicated with the water inlet. The automobile engine compartment drainage air intake system provided by the application correspondingly sets the drainage groove structure as the left drainage groove structure and the right drainage groove structure; two drainage groove structures are used for drainage respectively, so that the drainage groove structure does not span the width direction of the vehicle body, the space occupation area of the drainage groove is smaller, the size of the engine compartment is reduced, the layout in the engine compartment is optimized, and the engine compartment maintenance is facilitated.

The utility model relates to the technical fields of rail transit especially, a kind of high-speed rail vehicle porous corrugated modeling composite middle roof;Including surface panel, intermediate layer core material, backboard, the surface panel, the intermediate layer core material, the backboard are formed composite middle roof by composite glue composite;The surface panel is porous aluminum plate structure, is provided with corrugated modeling 1-1, the composite filling area is set in the intermediate layer between the parallel surface area of the surface panel and the backboard, and several groups of the intermediate layer core material are set in the composite filling area, and the area outside the composite filling area on the surface panel is provided with decorative hole and can penetrate the structure of the composite middle roof, meet the original decoration and the function premise of convenient inspection door under, further improve sound insulation and thermal insulation performance, while having better stiffness, can reduce the effect of the component vibration when train operation.

The utility model relates to photovoltaic module technical field, concretely relates to a BIPV photovoltaic module with sound insulation function, including frame main part, frame main part includes the outer frame and the inner frame at the inner side surface of outer frame, and the outer frame front surface is equipped with two symmetrically distributed clamping grooves, and the photovoltaic board is installed to the common clamping of two clamping grooves, and the photovoltaic board is provided with two symmetrically arranged sealing pads between the outer frame, and the inner side surface of inner frame is provided with sound insulation board, and the sound insulation board front surface is equipped with several even arrangement well-shaped recesses, several notches and several polygonal recesses, and the inner side surface of notch is provided with several hemispherical protrusions, through the several well-shaped recesses, notch, polygonal recess and arc-shaped recess of sound insulation board front surface, can reflect, refract and absorb sound, effectively enhance the sound insulation effect of sound insulation board, thereby make the whole photovoltaic module have good sound insulation performance, can effectively block outside noise, and be favorable to practical use.

The utility model discloses a composite wooden door suitable for people with lower body resistance, which belongs to the field of furniture and comprises a frame, an upper composite wood paste plate and a lower composite wood paste plate, the upper composite wood paste plate and the lower composite wood paste plate are mounted in the frame and respectively sequentially comprise a first surface layer, a core layer and a second surface layer, the core layer is positioned between the first surface layer and the second surface layer, and the second surface layer is positioned between the core layer and the second surface layer. And the frame is filled with a filling layer. The sound insulation effect is good, the formaldehyde emission is extremely low and reaches the HENF level smaller than or equal to 0.025 mg / m, and the cost is low.

This utility model application discloses an indoor decorative sound insulation structure, including a sound insulation base plate, two sets of sound insulation modules, and a panel. Sound insulation modules are provided on both sides of the sound insulation base plate. Each sound insulation module includes a sound insulation reflector and several sound-absorbing sleeves. The sound insulation reflector is fixedly installed on the side of the sound insulation base plate. This indoor decorative sound insulation structure, by providing sound insulation modules on both sides of the sound insulation base plate, allows sound transmitted from both sides of the device to be reflected and isolated. Through the reflective grooves and guide protrusions of the sound insulation reflector, some sound waves can be reflected and canceled out, thus actively eliminating some sound and improving the sound insulation effect. Simultaneously, the sound-absorbing sleeves further isolate sound and reflect and guide it, further enhancing sound absorption and insulation. This structure can effectively enhance the sound insulation effect of the wall and reduce the transmission of noise indoors and outdoors.

This utility model discloses a wall hole sealing device for building construction, comprising a columnar sealing body adapted to the size of the pre-reserved hole in the wall, a central hole penetrating the center of the sealing body, an expansion mechanism penetrating the central hole inside the sealing body, and a vertical through groove on the outer wall of the sealing body for changing the diameter of the sealing body under the action of the expansion mechanism; several anti-slip protrusions are evenly arranged on the outer circumference of the sealing body to enhance the friction between the sealing body and the wall; a sealing rubber sleeve is fitted on the outer circumference of the sealing body to improve the sealing performance between the sealing body and the wall hole. The wall hole sealing device provided by this utility model, through the design of the expansion mechanism, enables the sealing body to fit tightly against the wall, increasing the friction and adhesion between the sealing device and the wall, effectively preventing the sealing device from loosening or falling off, and improving the sealing firmness.

The utility model relates to the related technical field of sound insulation wall structures, and discloses a wall structure with a sound insulation function, which comprises a base layer wall, a first damping layer, a main sound insulation layer, a Helmholtz resonant cavity, a second damping layer and a facing layer, and a conical sound absorption wedge array is arranged in the Helmholtz resonant cavity. The sound insulation index of sound waves can be improved through the arrangement of the main sound insulation layer, and an effective air flow resistance optimization structure can be formed along with the arrangement of the conical sound absorption wedges in the Helmholtz resonant cavity, so that the aim of effectively absorbing sound is ensured; and through the arrangement of the first damping layer and the second damping layer, the inherent frequency of the wall body can be shifted to a non-sensitive frequency band, so that the vibration energy is attenuated, and the effective sound insulation purpose of the whole wall body structure is achieved.

The invention relates to the technical field of composite materials, in particular to a synergistic flame-retardant epoxy resin-based porous sound insulation composite material and application thereof. The raw materials comprise 100 parts of bisphenol A epoxy resin, 15 parts of an aliphatic amine curing agent, 12 parts of ammonium dihydrogen phosphate, 6 parts of melamine, 4 parts of nano silicon dioxide, 5 parts of sodium chloride, 2 parts of ammonium bicarbonate, 0.8 part of carbon nanotubes and 0.5 part of a silane coupling agent. The synergistic flame-retardant epoxy resin-based porous sound-insulation composite material provided by the invention effectively solves the technical bottleneck that the flame-retardant, sound-insulation and mechanical properties of an epoxy resin-based material in the prior art are difficult to synergistically improve, and has remarkable beneficial effects in multiple aspects.

The utility model discloses a household double-scene mute door in the technical field of door sound insulation and sealing structure optimization, which comprises a door frame and a door plate, the door frame is formed by fastening a plurality of main body profiles, a strong magnet mounting groove is arranged between the inner wall and the outer wall of each main body profile, a first strong magnet is arranged in the strong magnet mounting groove and is not exposed, and sound insulation grooves are arranged on the upper, left and right surfaces of the door plate parallel to the door frame. The sound-blocking module is movably installed in the groove and composed of a bottom plate, a second strong magnet and sound-blocking cotton, the second strong magnet is located between the bottom plate and the sound-blocking cotton, and stable supporting is provided by means of the large size of the bottom plate. When the door is closed, the first strong magnet and the second strong magnet attract each other, the sound blocking module, the first strong magnet, the sound blocking cotton and the like are located on the same vertical plane and tightly attached to block sound, the reset springs on the two sides of the door plate reset the sound blocking module to the sound insulation groove only when the door is opened, and the sound insulation performance is greatly improved while normal door opening and closing operation is not affected; indoor and outdoor sound interference is effectively reduced, and a quiet and comfortable environment is created for users.

The utility model discloses an outward-flat inward-opening type extremely simple door frame, which relates to the technical field of door frames and comprises a main sleeve and an auxiliary sleeve, an installation clamping groove is arranged on the rear side of the main sleeve, the auxiliary sleeve is fixedly arranged on the rear side of the main sleeve through the installation clamping groove, a first cavity and a second cavity are arranged inside the main sleeve, and the first cavity and the second cavity are communicated with each other. A bolt groove is formed in the second cavity, the cross section of the main sleeve is of a T-shaped structure, and a sealing strip is fixedly installed on one side of the back face of the main sleeve. According to the characteristic that the door is flat outside and open inside, the first cavity and the second cavity are arranged to increase the cross section area of the sectional material, a good supporting system is formed, and the deformation risk caused by long-term opening and closing can be resisted; the wall thickness of the main sleeve and the wall thickness of the auxiliary sleeve range from 1 mm to 3 mm. The millimeter-level thickness breaks through the visual decorous feeling of a traditional door frame, the ultra-narrow frame is achieved through the precision machining technology, the space permeability can be improved to the maximum degree, and the ultra-narrow frame is particularly suitable for modern simple and light luxury style decoration.

The utility model relates to the technical field of building curtain walls, and discloses a sound insulation and noise reduction type building curtain wall which comprises an installation frame, the top of the installation frame is connected with first inner layer glass in a gluing mode, the top of the first inner layer glass is connected with a glue clamping layer in a gluing mode, and the top of the glue clamping layer is connected with second inner layer glass in a gluing mode. A hollow layer is mounted at the top of the second inner-layer glass, and outer-layer glass is mounted at the top of the hollow layer. According to the sound insulation and noise reduction type building curtain wall, by adopting a laminated and hollow composite structure, the first inner layer glass and the second inner layer glass are bonded through a 1.52 mm P-type laminated layer to form an anti-impact sound and heat barrier; the 6mm outer layer glass and the argon filling hollow layer are combined to destroy sound wave resonance, and a 50-100mm rock wool cavity between the mounting frame and the wall body is matched to cut off a sound bridge; according to the curtain wall unit, multi-stage noise reduction and water prevention are achieved through a closed-cell foaming sealing structure and a shock insulation pad, and three-effect improvement of sound insulation, heat insulation and impact resistance is achieved on the whole.

The utility model relates to a concave-convex splicing assembly type wall body, the wall body comprises daughter boards (1) and corner splicing pieces (2), the two opposite sides of each daughter board (1) are respectively provided with a splicing clamping opening (1-1) and a splicing clamping groove (1-2) which are used for splicing, and the adjacent daughter boards (1) can be spliced in a plane mode through the splicing clamping openings (1-1) and the splicing clamping grooves (1-2); the corner splicing pieces (2) comprise right-angle bending splicing pieces (2-1), acute-angle bending splicing pieces (2-2) and obtuse-angle bending splicing pieces (2-3) which are used for right-angle corner splicing, acute-angle corner splicing and obtuse-angle corner splicing of the adjacent daughter boards (1); the daughter board (1) is provided with preformed holes (1-3) used for being matched with self-tapping screws to achieve fixation. Compared with the prior art, the sound insulation wall has the advantages that the problem of sound leakage generally existing at the splicing position of a traditional assembly type wall can be effectively solved, the sound insulation amount of the splicing position is equivalent to that of the wall, adjustment can be carried out according to the design requirements of close splicing or masking seams, and the sound insulation wall has the attractive effect and flexible design.

This utility model discloses a soundproof structure for a minimalist soundproof door set, including a soundproof structure body. A first frame, a second frame, and a third frame are spaced apart within the soundproof structure body. A first core layer is disposed between the first and second frames, and a second and third core layer are disposed between the second and third frames. An isolation layer is disposed between the second and third core layers. Through the design of multiple frames and multiple core layers, the soundproof structure provides support for the core layers, resulting in high overall structural strength and impact resistance, strong deformation resistance, good sound insulation, and light weight. The third core layer is made of aluminum honeycomb core and foamed plastic filling. The filling material can fill the gaps in the packaging container, fixing and supporting the soundproof structure body, preventing the product from moving or colliding during transportation. It also has good thermal insulation performance, protecting the soundproof structure body from temperature changes.

The utility model discloses the structure of child and mother window of business car, it mainly applies to the rear window area of the car body of business car. The structure of child and mother window of business car contains a fixed window, and the fixed window is installed to the car body and forms an opening, the inner side end face mother frame of setting in the fixed window, and is equipped with the slide rail in the mother frame, a movable window frame, the movable window frame can be slidably configured in the slide rail, and a movable window, the movable window is installed in the movable window frame, when closing state, the movable window can close the opening, and with the outer surface of fixed window keeps the same plane, to ensure that the car body appearance integrity, and promote air tightness and sound insulation. Through this design, the utility model can effectively improve the inconvenience that the traditional business car rear window cannot open, provide the window structure of car appearance consistent, sound insulation, waterproof and ventilation demand.

The utility model relates to the related technical field of aluminum alloy windows, in particular to a safe sealing type aluminum alloy window which comprises a window frame, a window sash body, a lock body, a hollow glass body, an elastic element, a multi-layer sealing component, a water baffle and a drainage component. According to the safe sealing type aluminum alloy window, the window sash body is locked or opened through the lock body, the air tightness and the waterproofness of the window in the closed state are guaranteed through the elastic element and the multiple layers of sealing components, the water baffle and the drainage component further prevent rainwater from invading, and accumulated water is drained in time; therefore, the overall usability and the service life of the window are improved.

The utility model relates to the technical field of insulation board, and disclose a composite shock attenuation insulation board with good sound insulation function, including shock attenuation layer, the outside of shock attenuation layer is provided with base layer, the outside of base layer is provided with thermal insulation layer, the outside of thermal insulation layer is provided with protective layer, shock attenuation layer includes elastic keel and embedded bone body, embedded bone body sets up in the both sides of elastic keel, the base layer includes panel, sound absorption hole and sound absorption groove, sound absorption hole sets up in the inside of panel, sound absorption groove sets up in the outside of panel. Through shock attenuation layer adopts rubber elastic keel and glass fiber reinforced polyurethane embedded bone body's composite structure, utilizes "flexible keel + rigid bone body's " damping effect, can reduce vibration transmission efficiency, the low frequency vibration inhibition effect is remarkable, the high density fibreboard of base layer combines the inside sound absorption hole with the outside sound absorption groove, forms "resonance-scattering" broadband sound absorption system.

A low-density, high-stability fluorinated polyimide aerogel is prepared by using TFMB, ODA, and 6FDA as raw materials to prepare a polyamic acid solution. Triethylamine is added to the polyamic acid solution to prepare a fluorinated polyamic acid salt. The fluorinated polyamic acid salt is dissolved in a mixture of water and diphenyl ether, and then triethylamine and N,N-dimethylcyclohexylamine are added to prepare a polyamic acid hydrogel. The hydrogel is then freeze-dried to obtain the polyamic acid aerogel, which is finally subjected to thermal imidization treatment. This invention uses three monomers to form an aerogel, creating a low-density, high-porosity three-dimensional network structure. This structure is stable, has a high heat resistance temperature, and maintains good performance at high temperatures. The aerogel also possesses a certain degree of rigidity and strength, making it resistant to deformation and structural collapse under external forces.

The pelletizing device comprises a base, a pelletizing cover, a cutter and a sound insulation plate, a pelletizer is installed on the base, a pelletizing head is arranged at one end of the pelletizer, a top plate is installed on the pelletizer, a motor A is installed in the top plate, a lead screw is installed at the power shaft end of the motor A, and a screw rod is installed at the power shaft end of the motor A; a ball nut is installed on the lead screw in a threaded mode and connected with a pelletizing cover, a motor B is installed in the pelletizing cover, an installation head is installed at the power shaft end of the motor B, a tool apron is installed on the installation head, a spring column is installed on the tool apron, and a cutter is installed at the other end of the spring column. A cooling fan is installed on the pelletizing cover, and a discharging head is arranged on the pelletizing cover. According to the utility model, the service life of the cutter is prolonged, the cutting effect and the particle quality are prevented from being influenced by over-high temperature, the cutter head is convenient to check and replace, the operation is simple and convenient, and the downtime and the maintenance cost are reduced.

The invention discloses a modular connecting assembly of a combustion furnace sound barrier, and relates to the technical field of sound insulation of long-acting environment-friendly combustion furnaces for oil testing. The assembly comprises a straight face connecting unit used for tightly attaching and connecting the adjacent sound insulation plates of the straight face part, the straight face connecting unit comprises a straight face reducing stud and two straight face lug plates, the two straight face lug plates are arranged in an up-down mirror symmetry mode, and the inner ends of the two straight face lug plates are fixed to the hinged side frame edges of the adjacent sound insulation plates of the straight face part respectively. The straight-face variable-diameter stud comprises a large-diameter section, a variable-diameter section and a small-diameter section which are coaxial, all the sections are in smooth transition connection, in the locking state, the two straight-face lug plates are located and connected to the large-diameter section in a sleeving mode, in the unlocking state, the straight-face lug plate on the lower side is connected to the small-diameter section in a sleeving mode, and the straight-face lug plate on the lower side is located and connected to the small-diameter section in a sleeving mode. And the straight-surface lug plate on the upper side is sleeved on the large-diameter section. The sound insulation barrier is suitable for a foldable and spliced type sound insulation barrier with a multi-face corner enclosure, the sealing performance of the connecting position is high, sound insulation is good, and disassembly and assembly and corner splicing are convenient.

The application relates to the technical field of admixtures for building materials, in particular to a special polycarboxylic water reducing agent for gypsum boards, which comprises the following steps: S1, preparing a multifunctional monomer mixed solution; S2, preparing an initiation system: dissolving polyether macromonomer and a chain transfer agent in part of water, placing the water in a reactor, heating to a preset temperature and keeping constant; S3, performing a gradient copolymerization reaction: under the constant temperature condition, synchronously and slowly adding the multifunctional monomer mixed solution and an oxidant aqueous solution into the initiation system; S4, performing aging and post-treatment: after the addition is completed, keeping constant temperature aging at the preset temperature, then reducing the temperature, and neutralizing with lye until the pH value is 6-7, so that the special polycarboxylic water reducing agent is obtained. The whole process does not need toxic and harmful raw materials such as formaldehyde and naphthalene, and conforms to the green chemistry direction. The problems of demolding difficulty and production line congestion caused by retardation are solved, and the mold turnover rate and the production line efficiency are significantly improved. Under a higher water reducing rate, lower porosity (non-bubble pore) and higher compactness can be obtained.

The utility model provides a highway sound insulation baffle with wind resistance belongs to highway baffle technical field, including main baffle, the inside of main baffle both ends all is seted up with installation slot, the inside fixedly connected with isolation subassembly in installation slot, the outside of main baffle both ends is seted up with side groove, the inside fixedly connected with sound insulation board in side groove, the inside of main baffle is seted up with vacuum cavity, the inside fixedly connected with wind -resisting subassembly of vacuum cavity, the utility model discloses a wind -resisting subassembly and arc frame are seted up, utilize the wind that provides a flow channel for blowing to main baffle with ventilation pipe, cooperate the arc frame of upper side, optimize the flow path of wind, avoid its straight blow main baffle, improve the wind -resisting performance of baffle, and through the sound insulation material of inside inner layer of the guide plate of inside staggered setting and it, can absorb the sound of passing through ventilation pipe and insulate, ensure the sound insulation effect of wind -resisting subassembly.

This utility model discloses a hinged structure with a rotating arm, which is mainly composed of a door leaf fixing component assembly, a rotating arm assembly, a door frame fixing seat, and a shaft A. The door leaf fixing component assembly includes a door leaf hinge, a shaft B, a bushing, a flat-head screw A, a T-shaped adjusting foot, a flat support A, and a positioning device A. The mounting plate of the door leaf hinge is provided with at least a screw hole A and a mounting hole A for installing the T-shaped adjusting foot. Adjusting the T-shaped adjusting foot can easily adjust the relative gap between the door leaf and the door frame. The rotating arm assembly includes a rotating arm A, a positioning device B, a countersunk screw A or a flat-head screw A. The positioning device B includes a tubular device body, a compression spring B, and a steel ball A. The rotating arm A is connected and fixed to the rotating arm B (23) through the connecting part A and the connecting part B of the rotating arm A (23) with a countersunk screw A to form a space A for concealing the door leaf cover sealing strip and a space B for the door frame clearance.

The utility model discloses a clean room automatic door closing mechanism, including upper track crossbeam, lower track crossbeam, linear track and track electric sliding seat, the front end of upper track crossbeam extends the sound insulation down block of integrated down, and the inboard of sound insulation down block is provided with first sound insulation baffle strip, and the inboard fixed bonding fiber cotton sound insulation strip of first sound insulation baffle strip, and the end of first sound insulation baffle strip is provided with the positioning bolt, and first sound insulation baffle strip is connected through positioning bolt and sound insulation down block pin. The utility model discloses the sound insulation down block of integrated down extension of the front end of upper track crossbeam, and the inboard of sound insulation down block is provided with first sound insulation baffle strip, and the inboard fixed bonding fiber cotton sound insulation strip of first sound insulation baffle strip, and like this has good sound insulation effect, when track electric sliding seat is along linear track and slides, can greatly absorb the noise of producing, and has optimized the operation environment of clean room.

The utility model belongs to the technical field of building equipment, and particularly relates to an assembly type green building construction wall which comprises a construction wall body, and installation assemblies are arranged on the two sides of the construction wall body. The mounting assembly comprises a mounting block, and the mounting block is fixedly connected to one side of the construction wall body. According to the utility model, the mounting assembly is arranged, and the mounting block is matched with the mounting groove, so that during mounting, the mounting block of one construction wall body is aligned with the mounting groove of the other construction wall body to be inserted, and then the screw rod, the gasket and the nut are used for fixing. Compared with a complex installation structure of a traditional fabricated construction wall, the design is simpler to operate, common constructors can master the installation method through simple training, dependence on professional technicians is greatly reduced, meanwhile, installation time and labor cost are reduced, construction efficiency is improved, and the construction cost is reduced. And the modern fast-paced building construction requirements can be better met.

The utility model relates to wallboard unit structure technical field especially relates to a new type integrated decorative wallboard unit structure. The utility model provides such a new type integrated decorative wallboard unit structure, including fire -retardant layer board, connecting piece, wall body board and decoration structure, the fire -retardant layer board front and back both sides all are provided with a plurality of connecting pieces, a plurality of connecting pieces are commonly installed with wall body board, and the wall body board outside is provided with decoration structure, and decoration structure is used for decorating wall body board. Through the use tool rotation screw rod, when screw rod is screwed, screw rod will extrude contact plate horizontal movement, and contact plate moves and drives the synchronous movement of the clamping plate, makes it insert the clamping groove in the inside preset of fire -retardant layer board, thereby the splicing of decorative wallboard is quickly, conveniently completed, and the wall body board connection strength is improved.

The utility model discloses a household music practice room which comprises a music practice room structure, an auxiliary sound insulation structure is detachably installed on the music practice room structure, a musical instrument assembly is placed in the music practice room structure, the music practice room structure comprises a household music room, and a sound insulation assembly is fixed on the household music room. The sound insulation assembly comprises a sound insulation felt layer, a sound absorption cotton layer is detachably installed in the sound insulation felt layer, a sound insulation plate layer is detachably installed in the sound absorption cotton layer, a sound absorption plate layer is detachably installed in the sound insulation plate layer, a sound absorption carpet is placed on the lower side of the interior of the sound absorption plate layer, and an illuminating lamp and a mute ventilating fan are detachably installed on a sound absorption ceiling plate. According to the household music practice room, the sound absorption effect is guaranteed through the arrangement of the sound insulation felt layer, the sound absorption cotton layer, the sound insulation plate layer, the sound absorption plate layer and the sound absorption carpet, internal stuffiness is avoided through the arrangement of the mute ventilator, and the ventilation effect is achieved.