1701results about "Noise insulation doors/windows" patented technology

An assembly system used to build two pane thermoacoustic windows for houses and buildings is provided. The assembly system uses a set of profiles and joints and a permanently installed valve to assemble the window frame without a fusion welding machine. The system creates an airtight chamber directly on the frame. The valve allows the assembler to evacuate the air in the airtight chamber to make a vacuum, or to inflow a gas. The system improves the insulating thermal and acoustic capacity of the window, and allows a supplier to sell the components to build the window, which is then assembled by snapping together profiles and joints. The system can also be applied to assembly one pane window and for other purposes.

A core for a fire rated door includes a fire resistant center panel and an extruded fire resistant border. The fire resistant center panel has a bottom, a top, a first side, a second side, a first end and a second end. The fire resistant center panel is made of a first fire resistant material. The extruded fire resistant border is attached to the first side, the second side, the first end and the second end of the fire resistant center panel. The extruded fire resistant border is made of a second fire resistant material having a higher density than the first fire resistant material.

A fire rated door includes a core, a first decorative panel and a second decorative panel. The core includes: (a) a fire resistant center panel having a bottom, a top, a first side, a second side, a first end and a second end, wherein the fire resistant center panel is made of a first fire resistant material, and (b) an extruded fire resistant border attached to the first side, the second side, the first end and the second end of the fire resistant center panel, wherein the extruded fire resistant border is made of a second fire resistant material having a higher density than the first fire resistant material. The first decorative panel is attached to the top of the fire resistant center panel and the extruded fire resistant border. The second decorative panel is attached to the bottom of the fire resistant center panel and the extruded fire resistant border.

The invention discloses an active ventilated and soundproof window, which comprises a soundproof window. The source ventilated and soundproof window is characterized in that: the soundproof window is provided with an active soundproof ventilation device which comprises a ventilation channel which is communicated with the indoor and the outdoor and an active noise control system. In the invention, the conventional ventilated and soundproof window is provided with the active soundproof ventilation device, and low-frequency noises are counteracted and absorbed by using active noise control technology; and meanwhile, a sound-absorption layer consisting of sound-absorbing materials is coated on the inner wall of the ventilation channel and high and middle-frequency noises are absorbed by a sound-absorbing structure in the ventilation channel. Thus, the low-frequency and high-frequency noises can be effectively reduced under the condition of maintaining high ventilation performance.

The present invention relates to a moving window installation structure of a sliding window system. More specifically, the present invention relates to a moving window installation structure of a sliding window system which is configured to prevent a vertical reaction force from being applied between a rail and a roller for supporting the weight of a moving window that constitutes a sliding window having an aluminum alloy sash structure such that the moving window can be smoothly moved in a direction perpendicular to the longitudinal direction of the rail and the sliding mobility of a large-sized window having a heavy weight can be improved, and to improve a profile cross-section structure of a window installation frame provided with a sliding window such that heat insulation can be remarkably improved and wind pressure resistance against wind pressure can be enhanced.

An acoustical dampening barrier, for an opening in a wall, that is translatable to an open position to allow access to the opening, the fixed barrier including a first barrier layer made of at least one of a rigid and semi-rigid material, a second barrier layer fixed to the first barrier layer on a side of the first barrier layer where a sound to dampen is emitted made of an acoustic material with sound attenuation characteristics, a third barrier layer fixed to the second barrier layer on a side of the second barrier layer where a sound to dampen is emitted made of an acoustic material with sound absorptive characteristics, and a seal material connected to at least one of the opening in the wall, the first barrier layer and the third barrier layer to further dampen a sound emitted when the fixed barrier is translated to a closed position to prevent access to the opening.

The invention relates to an assembled metal sound insulation chamber which is used for acoustic measurement of electronic, mechanical and medical products or used as a recording studio, an audiometric room, a laboratory or a control room. The assembled metal sound insulation chamber is characterized in that a sound insulation module and an H-shaped steel connector are inserted together to form a bottom panel; the sound insulation module or a sound insulation-sound absorption module and the H-shaped steel connector are inserted together to form vertical panels and a top panel; all panels compose a metal sound insulation chamber by the connecting and fixing of a C-shaped steel connector, an F-shaped steel, an angle steel and an angle post connector; when the vertical panel and the top panel are sound insulation modules, the internal surface of the sound insulation chamber is provided with a layer of metal sound-absorption module, a vibration isolator is arranged below the bottom panel; and a sound insulation door and a sound insulation window are arranged on the vertical panel and a ventilation muffler is arranged on the vertical panel or the top panel. Owning to the assembled structure, the assembled metal sound insulation chamber is convenient for production, transportation and assembly, has good effects for vibration isolation, sound insulation, ventilation and observation, beautiful appearance, firmness and durability, is environment-protective, has no smells, has the background noise less than 20dB and does not affect the acoustic characteristic after being re-assembled in different places.

The present invention relates to a fire-resisting sound-insulating safety door and its production method. Said door mainly is formed from face layer, steel frame and reinforcing ribs. Two sides of the steel frame are equipped with two face layers, between two face layers several reinforcing ribs are set, and firmly connected together with face layers and made into one whole body. On the reinforcing ribs several holes or spaces through which several foamed cement blocks can be passed, and the interior of the steel frame is filled with foamed cement. The safety door is equipped with door handleand door lock, etc. and the described two face layers are steel plate, also one can be steel plate and another can be wood plate, plastic plate, glass fibre reinforced plastic or cement face layer.

All translucent ventilation and sound-deadening window comprising two-layer glass, microperforated panel, sound-deadening air duct, an air renewal draught fan, air admission port, air vent, wherein the two-layer glass is arranged inside and outside the window, two microperforated panels of transparent material are arranged inside the two-layer glass to form microperforated panel cavity sound-deadening arrangement, between the two microperforated panels is a sound-deadening air channel, the sound-deadening window includes an air renewal draught fan and an air admission port on the upper portion, the air vent is arranged beneath the sound-deadening window.

The invention discloses an aluminum clad wood thermal insulation window having heat transfer coefficient less than 0.8, which relates to an aluminum clad wood thermal insulation window. The invention solves the problems that the heat energy is wasted due to poor thermal insulation performance of the conventional aluminum clad wood thermal insulation window. The aluminum frame (1-2) is fixedly connected with the outward side of the wood frame (1-1); the aluminum mullion (1-4) is fixedly connected with the outward side of the wood mullion (1-3) by a thermal insulation profile mullion (1-6); thesash aluminum frame (2-2) is fixedly connected with the outward side of the sash wood frame (2-1) by a sash thermal insulation profile frame (2-3). The aluminum clad wood thermal insulation window ofthe invention is suitable for the field of building windows and doors.

The invention relates to a ventilating dead window, which is characterized in that the window includes an internal window frame and an external window frame which are arranged inside a window aperture, and a space is left between the two window frames; a plurality of vertical mullions are arranged at the opposing positions on the two layer of window frames, and a vertical glass partition is arranged on each of two opposing vertical mullions and divides the space between the two window frames into a plurality of independent cavities, and a hole is arranged on the vertical glass partition to communicate with the neighboring cavities; at least one swing-in casement window is arranged on the internal window frame at one side, and at least one swing-out casement window is arranged on the external window frame at the other side. The invention divides the cavities between the two window frames into a plurality of cavity bodies, at the same time air inlets are arranged at the different positions of each glass partition; therefore the outside air experiences a plurality of expansions when passing each cavity and can reduce noise in the process of entering the room. The invention can be widely applied to the buildings which are near to railway, highway or airport where the noise environment is more serious.

A door for a RF shielded and acoustically insulated room. The door includes a door panel and door frame adapted to electrically and pivotally contact the door panel. The door panel includes a noise absorbing material and a noise insulating gap disposed between outer sections of the door panel. The door frame includes a noise absorbing material and a perforated region adjacent to the noise absorbing material. The perforated region includes a number of apertures spaced apart at varying distances along the door frame.

The invention discloses an active noise-reducing sliding window structure, which is naturally ventilative, can effectively attenuate noise, and particularly reduces low-frequency broadband noise. The window body is a two-layer horizontal sliding window; and an active noise control system comprise a controller, a reference microphone sequence, a control source sequence and an error microphone sequence, wherein the controller adopts feedforward adaptive control and is arranged in a device case on the lower part of the sliding window; the control source sequence is arranged in device cases of upper and lower parts of the sliding window and a control source bracket in the middle of a sandwich of the double-layer window; and the reference microphone sequence and the error microphone sequence are respectively arranged in vertical window frames of the inner side and the outer side of the window and are communicate with the external air. Three working conditions are preset, namely an enclosed sound-proof condition under the condition of the totally enclosed window (the active noise control system does not work), a ventilative active noise-reducing condition that the a reference microphone side sash opening area of the outer-side window is less than 50 percent of the total opening area and an error microphone side sash opening area of the inner-side window is less than 50 percent of the total opening area (the active noise control system works), and a free ventilative condition in other window opening modes (the active noise control system does not work). The active noise-reducing sliding window structure can achieve the newly increased noise attenuation of over 6dB in a frequency range of 200 to 600Hz.

The invention relates to a steel sound proof door which is extensively used for occasions where noise needs to be controlled, such as a studio, a theater, a broadcasting studio, a recording studio, a cinema, a sound damping chamber, an audiometric room, a machinery room, a sound proof cover and the like. A door leaf is arranged on a door frame through a swing-up type hinge, the door frame is welded on an embedded part of a door opening, cement mortar is poured into a gap between the door frame and the door opening, and a built-in type sealing threshold is adopted; the door frame is formed by spot-welding a front frame plate and a rear frame plate, the door leaf is formed by spot-welding a front leaf plate and a rear leaf plate into a whole, no steel structural frame is arranged in the door leaf, sound proof materials, sound absorption materials and damping materials are filled in the door leaf, magnetic sealing strips and sponge sound absorption strips are arranged at an intersected crack between the door frame and the door leaf, and the door frame and the door leaf can be overlapped with a door frame or a door leaf with a same structure to form the sound proof door with higher sound proof factor. The steel sound proof door has the advantages of reasonable structure, hermetical seal, easy opening and closing, attractive appearance, no cracking and no lower threshold; and the sound proof factor can be divided into a plurality of levels from 35 db to 55 db.

The invention discloses a noise absorption and insulation composite board. The noise absorption and insulation composite board is formed by stacking a noise absorption layer and a constrained damping structure layer. The constrained damping structure layer is composed of a constrained layer, a panel layer/panel layers arranged on the constrained layer or/and under the constrained layer and a damping layer arranged between the constrained layer and the panel layer. By introducing the noise absorption layer and the constrained damping structure layer at the same time, the noise absorption and insulation composite board has the advantages of being simpler in structure, lighter, thinner, more convenient to install and use and the like under the condition of the same noise absorption and insulation performance. Thus, the noise absorption and insulation composite board can meet the application requirements of noise insulation and reduction products and has obvious application value.

The invention discloses a soundproof door. The soundproof door comprises door leaves and door pockets movably connected with the door leaves, wherein an air bag is arranged on one side, opposite to the floor, of each of the door leaves; an air pump is arranged in the door pockets, and the air inlet and air outlet of the air bag are connected with the air outlet of the air pump; a door lock is also arranged on the door leaves, the door lock comprises a first spring bolt and a second spring bolt, also comprises a counter lock connected with the second spring bolt; a second spring bolt box is arranged on the door pockets, the second spring bolt is placed in the second spring bolt box, and an air pump switch contact in contact with the second spring bolt is arranged in the second spring bolt box. The soundproof door has the advantages that the sealing property is good, the service life is long, the structure is simple, the fabrication cost is low, and the maintenance is easy.

The invention relates to a bored glass plate and a plurality types of structures which adopt the bored glass plate. The technical proposal includes that: the bored glass plate is provided with pores which are communicated in the thickness direction and is regularly and evenly distributed in the plane direction. The opening percentage is more than or equal to 0.5% and less than or equal to 30%, and the pores are round or polygonal. The structures which adopt the bored glass plate include a building window which adopts the bored glass plate, a vehicle window which adopts the bored glass plate, a fencing which adopts the bored glass plate, a sound barrier which adopts the bored glass plate and a traffic passage complete blocking structure which adopts the bored glass plate. The bored glass plate has air permeability, facilitates ventilation and has the sound absorption effect of a perforated plate and a micro perforated panel; therefore, the bored glass plate has certain sound insulation effect. The bored glass plate is applicable to building windows or glass curtain walls, vehicle windows, various sound barriers, fencings and traffic passage blocking structures.

The invention relates to a heat-insulation sound-insulation door which comprises a door body (1) and a door cover (2) matched with the door body (1), wherein one side of the door body (1) is movably connected to a corresponding side of the door cover (2), and the door body (1) rotates making a hinge as the axis; the heat-insulation sound-insulation door further comprises a heat-insulation sound-insulation door strip (7), a driving arm (6), a control module (3) arranged inside the door body (1), a power supply (4), a motor (5) and a triggering device (8) used for detecting whether the door body (1) is closed or not, and the power supply (4), the motor (5) and the triggering device (8) are connected with the control module (3) respectively. According to the technical scheme, all the components are connected, an electronic control structure is adopted, isolation operation is automatically achieved for gaps on the bottom of the door, heat-insulation sound-insulation effects of the door can be greatly improved, and the door has great market application value.

The invention provides a vacuum self-adsorptive heat insulation and noise reduction reinforced plastic flat plate. One surface of the plastic flat plate is a flat and smooth plane, while the other surface is provided with a plurality of regularly-formed blind holes and coated with a heat reflection metal film; small grooves between the bottoms of adjacent blind holes are communicated with one another; the communicated blind holes can be vacuumized; the plastic flat plate can firmly adsorb on the surface of a smooth and flat glass plate or metal plate under the action of negative pressure; and the conduction of heat and sound waves are blocked effectively by the properties of the material of the plastic flat plate, the heat reflection metal coated film on the surface and the internal vacuum condition. The plastic flat plate has a simple structure, is easy and convenient to install, allows the ordinary person to modify the conventional household doors and windows by using the ordinary tools, saves energy, protects the environment and improves living environment.