69 results about "Noise barrier" patented technology

The present invention relates to a noise barrier wall panel that is lighter and more structurally sound than existing concrete noise barrier wall panels. The panel has a metal frame that is reinforced via metal strapping in key areas to prevent sagging. The panel has a plurality of layers forming a laminate that can be fixedly attached to the frame. A finish coating layer may have a plurality of designs, logos, symbols, or textures which may mimic building materials or scenery.

An acoustic blanket absorbs acoustic energy and reduces noise in a launch vehicle. The acoustic blanket may be overlaid on a wall of a payload fairing of the launch vehicle. Materials and construction of the acoustic blanket allow for a relatively thin and light sound barrier. The acoustic blanket may comprise vertically-lapped polyester that is overlaid with a lightweight melamine foam. This combination of materials creates an acoustic impedance mismatch between layers that leads to absorption of acoustic energy across a relatively broad range of frequency bands. The acoustic blanket has a particular heat seal pattern that helps absorb noise while allowing the acoustic blanket to be relatively soft and flexible, which is useful for attaching the acoustic blanket to a curved wall of a fairing or other launch vehicle shapes. The acoustic blanket utilizes micro-perforations on multiple sides to allow for movement of air / venting while maintaining the bulk materials inside.

The utility model relates to the technical field of sound insulation equipment, and discloses a splicing type sound insulation barrier for building construction, which comprises two groups of stand columns, two groups of multi-stage telescopic rods are fixedly connected between the two groups of stand columns, and a plurality of groups of sound insulation plates are arranged between the two groups of multi-stage telescopic rods. Sliding sleeves are rotationally connected to the middles of the tops and the bottoms of the sound insulation plates through rotating columns, the sliding sleeves are arranged on the outer surfaces of the corresponding multi-stage telescopic rods in a sleeving mode, a limiting mechanism is arranged between the two sets of stand columns, and when the limiting mechanism is unfolded, the sound insulation plates can be kept flush with the stand columns; the limiting mechanism comprises rotating shafts rotationally installed on the two sides of the outer surfaces of one set of stand columns, the outer surfaces of the rotating shafts are fixedly connected with multi-stage telescopic plates in the radial direction, the multi-stage telescopic rods are used for adjusting the distance between the two sets of stand columns, and when the multi-stage telescopic rods retract, the sound insulation plates can be rotated to be overlapped together, so that the sound insulation plates are folded, and the sound insulation plates are folded. Therefore, the size of the device can be reduced, and storage is facilitated.

The utility model relates to the technical field of sound insulation windows, in particular to a novel noise reduction window. Comprising a rectangular frame body, two sliding ways are fixed to the opposite end faces of the upper side and the lower side of the frame body, two window bodies are installed in the frame body, protruding strips make sliding contact with the window bodies, a plurality of universal balls are evenly distributed and installed at the groove bottom of a long groove, the universal balls make rolling contact with the protruding strips, outer sound absorption cotton is installed in the long groove, and the outer sound absorption cotton makes sliding contact with the groove wall of the long groove. The outer sound-absorbing cotton is in sliding contact with the protruding strips, a supporting plate is embedded and fixed to the side, facing the groove bottom of the long groove, of the outer sound-absorbing cotton, and the supporting plate is connected with the groove bottom of the long groove through a spring. According to the window body, the vacuum glass is adopted to isolate high-frequency noise, the inner sound-absorbing cotton is filled in the raised lines to absorb low-and-medium-frequency noise, and the outer sound-absorbing cotton and the sound-absorbing cotton ring further fill gaps, so that multi-frequency-band noise isolation is formed.

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 utility model discloses an acoustic barrier device for noise elimination, and relates to the technical field of acoustic barriers, the acoustic barrier device comprises a mounting column, both sides of the mounting column are provided with sliding grooves, the interiors of the sliding grooves are connected with acoustic panels in a sliding manner, and the exterior of the mounting column is provided with a mounting groove. According to the utility model, through the cooperative arrangement of the mounting assembly and the fastening assembly, the sound insulation barrier can be continuously mounted, so that no gap is formed between the sound insulation barriers, and the sound insulation effect of the sound insulation barrier on noise is improved; when the sound insulation plates are installed, a plurality of sound insulation plates can be sequentially installed from bottom to top, the problem that high-altitude operation such as a scaffold is needed in the installation process can be avoided, the safety of the sound insulation plates in the installation process is improved, meanwhile, the sound insulation plates can form a whole through cooperative arrangement of the fixing blocks and the fixing plates, and the sound insulation plates are convenient to install. The overall stability of the noise barrier is improved, and convenience is brought to use of the noise barrier.

1. The name of the design product: sound barrier column. 2. The use of the design product: the sound barrier column is used for the soundproofing barrier along the road and on both sides of the bridge to tighten the sound barrier unit board in the steel column. 3. The design points of the design product: in the top view. 4. The picture or photo that best indicates the design points: perspective view.

The utility model discloses a multilayer building soundproof window which comprises a window frame, and a window sash is hinged to the front surface of the window frame. The sealing sound insulation device comprises an extending frame arranged on the rear surface of the window sash, a second EPDM multi-cavity sound insulation rubber strip installed on the outer side face of the extending frame, a concave part formed in the window frame, a plurality of first EPDM multi-cavity sound insulation rubber strips arranged on the concave part and tightly attached to the second EPDM multi-cavity sound insulation rubber strip, and a stabilizing assembly installed on the concave part. The sealing sound insulation device has the advantages that through the designed sealing sound insulation device, when the window sash is closed, the first EPDM multi-cavity sound insulation rubber strip and the third EPDM multi-cavity sound insulation rubber strip are both tightly attached to the second EPDM multi-cavity sound insulation rubber strip, an effective sound insulation barrier is formed, sound is prevented from being transmitted into a room from the connecting position of the window sash and the window frame, sound insulation can be achieved through the good sealing performance, and the sound insulation effect is good. The heat preservation performance of the window can be improved, and indoor and outdoor heat exchange is reduced.

The utility model relates to the technical field of backing plates, in particular to a backing plate with an excellent sound insulation effect, which comprises a backing plate, the backing plate comprises a front plate, a back plate and concrete bulges, and the front plate is connected with the back plate. Through an assembly composed of the front plate, the back plate and the concrete protrusions, a backing plate structure with the excellent sound insulation effect is provided for building construction, the XPS core plate layer has the good sound insulation performance and meanwhile facilitates heat preservation and heat insulation, the glass fiber layer can absorb and disperse sound waves due to the fiber structure of the glass fiber layer, the sound insulation effect is further improved, and the service life of the backing plate is prolonged. Meanwhile, the concrete layer provides a firm foundation and a certain sound insulation barrier, through the arrangement of the concrete protrusions on the back plate, a certain space can be well reserved between the back lining plate and the cavity through the concrete protrusions when the whole back lining plate is assembled with the building wall face, the back lining plate is prevented from being completely attached to the wall face, and the service life of the back lining plate is prolonged. Therefore, the efficiency of direct transmission of sound to the wall surface is reduced, and the sound insulation effect of the whole backing plate is greatly improved.

The utility model provides a windproof type sound insulation barrier, and belongs to the technical field of railway equipment, the windproof type sound insulation barrier comprises a sound insulation plate used for being fixed along a railway, multiple groups of windproof assemblies are arranged on the side face, facing or backing on to the railway, of the sound insulation plate, and each group of windproof assembly comprises a support, an air guide plate and an adjusting component; the support is fixedly arranged on the side face of the sound insulation board. The air guide plate is hinged to the support, and the hinged shaft is parallel to the surface of the sound insulation plate. The adjusting component is arranged between the support and the air guide plate and connected with the support and the air guide plate so as to adjust and fix the inclination angle of the air guide plate. Compared with the prior art, the windproof noise barrier is high in stability and remarkable in windproof effect.

The application discloses a kind of road construction soundproof barrier structures, relate to road construction technical field, including soundproof barrier structure, the soundproof barrier structure both sides are provided with splicing assembly, the soundproof barrier structure inside is provided with the transmission assembly extending to the inside of splicing assembly, the soundproof barrier structure inside is provided with the support assembly extending to the outer wall of another side thereof, the soundproof barrier structure inside is provided with the sound insulation component extending to its above, the soundproof barrier structure includes barrier body.The application is inserted into the splicing sleeve of another group of soundproof barrier structure by the insertion strip of a group of soundproof barrier structure, at this time, the inner slide block sliding in the splicing sleeve can be pushed, at this time, under the cooperation of Z-shaped rod, torsional spring and clamping trapezoidal block, Z-shaped rod can be reset under the action of torsional spring, clamping trapezoidal block and inner slide block outer wall can be engaged, which plays a limiting role, and achieves the effect of facilitating splicing.

The present invention relates to an ingress barrier assembly comprising a frame defining a sound opening for the passage of sound and an, essentially acoustically transparent, ingress barrier membrane covering the sound opening, wherein the ingress barrier membrane has a Young's modulus of less than 0.1 GPa, and is configured such that it has a slackequivalent of more than 0.1 mm and a tension point of less than 0.2 kPa. The present invention further relates to a method for manufacturing the ingress barrier assembly; to use of an ingress barrier membrane in an ingress barrier assembly; to a dome incorporating the ingress barrier assembly; and to a device or device part comprising the ingress barrier assembly.

The present invention relates to a noise barrier wall panel that is lighter and more structurally sound than existing concrete noise barrier wall panels. The panel has a metal frame that is reinforced via metal strapping in key areas to prevent sagging. The panel has a plurality of layers forming a laminate that can be fixedly attached to the frame. A finish coating layer may have a plurality of designs, logos, symbols, or textures which may mimic building materials or scenery.

The invention relates to a manual noise reduction intelligent door and window system, and belongs to the technical field of intelligent doors and windows. The manual noise reduction intelligent door and window system comprises an outer frame, a window sash is hinged to the inner side of the outer frame, a positioning groove is formed in the surface of the window sash, and an intelligent noise reduction mechanism connected with the positioning groove in a clamped mode is installed in the outer frame in an embedded mode; the intelligent noise reduction mechanism comprises an annular frame embedded in the inner side of the outer frame, and an annular groove communicating with the positioning groove is formed in the inner side of the annular frame; external noise is collected in real time through the microphone, a built-in AI chip of the Internet of Things microcontroller analyzes noise spectrum and phase and generates reverse interference sound, and the loudspeaker emits sound waves to the noise direction for interference offset, so that structural sound transmission caused by vibration is effectively inhibited, and the problem that the resonance efficiency of an existing door and window sound barrier is remarkably reduced is solved. And the active noise reduction capability is improved.

The utility model relates to the field of sound barrier installation especially detachable sound barrier pre -buried connecting sleeve, technical scheme: detachable sound barrier pre -buried connecting sleeve, including pre -buried base, pre -buried shell, anchor plate and pre -buried sleeve, the upper end center of pre -buried base is fixed with pre -buried screw rod, the outer wall of pre -buried shell is provided with thread layer, the outer wall of pre -buried shell is opened and is provided with two groups of first through -hole of left and right symmetry distribution, the utility model discloses through pre -buried shell and first through -hole can avoid the concrete of pouring the pre -buried sleeve and pre -buried screw rod fixed lock of thread connection to reduce the influence that concrete deck receives in the process of dismounting pre -buried sleeve, and the pre -buried base, pre -buried sleeve and anchor plate of thread connection of thread connection, then can be convenient for subsequent user to the convenience of maintaining sound barrier, solved the problem that the existing sound barrier pre -buried connecting sleeve is inconvenient to dismount when using, and can easily cause greater damage to concrete deck.

1. Name of the product in this design: Metal Unit Board (Plug-in Type I). 2. Application of this design: for use as noise barriers on both sides of railways or highways. 3. The key design features of this product are the combination of shape and pattern. 4. The image or photograph that best illustrates the design's key points: 3D view 1. 5. Other situations requiring explanation: The enlarged sectional view A-B is the enlarged sectional view of section A-B in the front view; the enlarged sectional view C-C is the enlarged sectional view of section C-C in the perspective view 4.

The application provides an optimal installation method and system of an active control noise reduction sound barrier, and belongs to the technical field of noise control.The active control noise reduction sound barrier comprises a source noise reduction module and a sound barrier, the method blocks the propagation path of a noise sound field through the sound barrier to form a sound shadow area, and the noise sound field is a primary sound field; the primary sound field is gathered at the top of the sound barrier to form a new diffraction sound source; the active noise reduction module is arranged at the top of the sound barrier to emit anti-sound to reduce the diffraction sound emitted by the diffraction sound source, and the area of the sound shadow area is enlarged to form an interference area; the enlarged sound shadow area and the formed interference area are superposed to form a noise reduction area after the noise reduction effect is superposed. The application overcomes the shortcomings of limited noise reduction effect of a traditional passive noise reduction measure on low-frequency noise and the insufficient low-frequency noise attenuation capacity of limited geometric size, so that the overall noise reduction performance of the sound barrier is improved.

The application discloses a low-noise, low-pollution, high-efficiency and high-precision cement concrete pavement joint cutting equipment, which comprises a walking chassis, a mechanical arm, a front soundproof barrier, a cutting device, a rear soundproof barrier, a cooling water device, a sewage collecting device and a control system; the control system is used for controlling the whole equipment to automatically complete joint cutting work. The equipment has the advantages of high joint cutting efficiency, low labor intensity, avoidance of sewage and noise pollution and high joint quality.

The invention provides an additive manufacturing method for building a structure, in particular an infrastructural construction, more in particular a sound barrier, comprising: - providing an earth composition comprising 20-70 wt.% clay and silt, 70-30 wt.% sand, less than 10 wt.% gravel and less than 4 wt.% water, in particular less than 2.5 wt.% water, more in particular less than 1.5 wt.% water, more in particular less than 1 wt.% water; - mixing said earth composition with an air flow with a pressure of 2-10 bar, in particular 2-5 bar, at a mixing volume ratio of between 1:50 and 1:150 earth composition to air and resulting in a flow rate of between 50-400 m3 / hour; - pneumatically conveying said air-earth composition mixture to an additive manufacturing robot at its nozzle; - adding at or near the nozzle an additional amount of water to result in 5-10 wt.%, in particular 7-10 wt.% water in said earth composition, more in particular 7-9 wt.% water content, and - depositing, in particular spraying, said earth composition via said nozzle for building said structure.

The invention relates to the technical field of building materials, in particular to a light building wall protection plate which comprises a main body plate, a cavity, a sound absorption material, a connecting assembly, a sound insulation film and the like. A through cavity is formed in the main body plate and filled with sound absorption materials, the edge forms a continuous sound insulation barrier through a positioning strip, a sealing block and an elastic gasket, and the sound insulation performance is improved. And the sealing block is internally provided with a cavity structure filled with low-frequency sound-absorbing particles, so that the low-frequency noise absorbing capacity is enhanced. The surface of the main body plate is covered with the sound insulation film and the decorative layer, and the protective coating is coated, so that attractiveness and durability are achieved. A sound transmission path can be effectively blocked, the sound insulation effect is remarkably improved, and meanwhile the advantages of light weight and construction convenience are kept.

The invention discloses a limiting device for installation of a folding type noise barrier and a using method of the limiting device, and relates to the technical field of installation of folding type noise barriers. The device comprises a positioning piece, a compression bolt, an L-shaped pressing plate, a compression nut and a limiting rod, a regular polygonal nut is arranged at one end of the compression bolt, the positioning piece is provided with a nut mounting groove used for clamping and mounting the nut and an open groove allowing a rod body of the compression bolt to penetrate through, and the inner end of the positioning piece is fixed to the folding type sound barrier. The L-shaped pressing plate is arranged on the outer end side of the positioning piece, connected to the pressing bolt in a penetrating mode and pressed and fixed through the pressing nut located at the outer end of the pressing bolt, the upper side and the lower side of the positioning piece are each provided with a limiting rod pressed on the surface of the folding type sound insulation barrier by the L-shaped pressing plate, and the limiting rod on the lower side is arranged on a horizontal table at the lower end of the L-shaped pressing plate in a lap joint mode. And one limiting rod on the upper side is lapped on the upper end surface of the positioning piece. The installation efficiency can be greatly improved, and it is ensured that all the screen bodies are flush with a limited horizontal plane.

The utility model discloses an upright combined sound barrier plate, which belongs to the technical field of sound barrier plates and comprises a base, a plurality of H-shaped steel columns are fixedly mounted at the top of the base, and the H-shaped steel columns are fixedly mounted at the bottom of the base. A first metal sound absorption and insulation board, a second metal sound absorption and insulation board, an acrylic sound insulation board, a third metal sound absorption and insulation board and a fourth metal sound absorption and insulation board are sequentially clamped between every two adjacent H-shaped steel stand columns from bottom to top. The first metal sound absorption and insulation board, the second metal sound absorption and insulation board, the third metal sound absorption and insulation board and the fourth metal sound absorption and insulation board can be combined to form a sound barrier board to replace a traditional overall sound insulation barrier board, so that only parts at damaged positions are replaced when local damage occurs, resource waste caused by overall replacement is avoided, production cost is reduced, and production efficiency is improved. And meanwhile, the water-permeable sound-absorbing block is additionally arranged at the gap between the base and the first metal sound-absorbing and insulating plate, so that the joint has the water-permeable effect and also has the sound-absorbing and noise-reducing effects.

The invention relates to an upper sound insulation device of a sound insulation barrier easy to install. More specifically, the present invention relates to a sound insulation device which is easy to install and can be quickly and conveniently fixed to the upper part of a sound insulation barrier, thereby having excellent working efficiency. The device can effectively prevent road vehicle noise from penetrating through the sound insulation barrier to diffuse outwards, and therefore the good sound insulation effect is achieved. In addition, the device further has the structural supporting strength enough to bear strong wind loads such as typhoon or gust, and snow accumulation in winter can be prevented fundamentally.

The invention relates to the field of psychotherapy, in particular to a psychotherapy music hypnosis induction device which comprises a deck chair, a sponge mat is mounted above the deck chair, a shading assembly is arranged on the outer side of the deck chair, a sound insulation protection assembly is arranged in the sponge mat, and a ventilation assembly is arranged in the sound insulation protection assembly. And hand supports are symmetrically mounted on the inner side of the deck chair. The protection seats are driven by the first electric push rod to get close synchronously, so that the flexible gaskets are attached to the two ears, and a physical sound insulation barrier is formed while head lateral support is provided and a correct sleeping posture is maintained. Through cooperation of the double-end electric push rod and the silent fan, ear micro-airflow circulation and overall space ventilation are achieved in a sound insulation state, and stuffiness is avoided. The shading curtain is unfolded through the second electric push rod to isolate light, and an immersive sound field is built in combination with the multi-azimuth sound box. The whole set of device has a synergistic effect, and an optimized treatment environment integrating posture stability, sensory isolation and air circulation is constructed.

This invention discloses a sound insulation device for an automatic aging chamber, relating to the technical field of sound insulation devices. The device includes a chamber with an inlet, an outlet, and an observation window. Sound insulation components include a sound insulation curtain, a transparent sound insulation panel, sound insulation cotton, and a sealing strip. The sound insulation curtain is located at the inlet and outlet, the transparent sound insulation panel is located at the observation window, and sound insulation cotton is installed on the inner wall of the chamber, excluding the observation window. Sealing strips are installed in the gaps within the chamber. The sound insulation curtains at the inlet and outlet form a dynamic sound barrier during product loading and unloading, effectively blocking noise leakage. The observation window reduces sound wave transmission while allowing operators to observe the testing process. The sound insulation cotton on the inner wall of the chamber absorbs and attenuates noise, further reducing noise energy. The sealing strip eliminates structural sound leakage channels, achieving a fully enclosed sound insulation seal, thus achieving efficient noise reduction throughout the entire aging test of audio products and reducing the noise intensity around the aging chamber.

The utility model relates to the technical field of sound barriers, and discloses a double-sided power generation sound barrier which comprises a connecting piece and two groups of sound barriers, a rotating shaft is rotatably connected to the connecting piece and fixedly connected with the upper sound barrier, and a worm gear is coaxially and fixedly connected to one end of the rotating shaft. One side of the connecting piece is rotationally connected with a worm, the worm is in meshed connection with the worm gear, the sound barrier on the lower portion is fixedly connected with the connecting piece, angle scale grooves are formed in the other side of the connecting piece at equal intervals, the angle scale grooves are distributed in an arc shape, and the included angle between every two adjacent angle scale grooves is 30 degrees. The upper sound barrier is fixedly connected with an indicating arrow. The sound insulation barrier effectively solves the problems that an existing sound insulation barrier of an integrated structure and an assembling structure is inconvenient to transport, and construction efficiency can be reduced, and is high in practicability.

The utility model discloses a kind of welding fume dust collectors of noise reduction, it is related to welding auxiliary equipment technical field, the welding fume dust collector includes dust collector box and the control box being arranged in the dust collector box one side, further include spark capture subassembly, dust removal subassembly, noise reduction subassembly and fan module.The utility model is through the three-stage spark interception structure of coarse mouth filter steel wire net, staggered V-shaped plate and fine mouth filter steel wire net, can efficiently block and cool high-temperature spark, cooperate infrared temperature sensor and the linkage mechanism of control box, can quickly respond when few spark breaks through interception, further block risk by speed reduction and airflow barrier, multiple protection effectively avoid spark ignition filter core, reduce security risk;The equipment is through the soundproof frame of double-layer sound insulation structure, centrifugal glass sound-absorbing cotton, rubber shock pad damping, etc., from noise barrier, absorption and damping, etc. Multidimensional reduction centrifugal fan operating noise, greatly reduce the noise volume of equipment.

A soundproof wall (10) with a frame element (14) comprising a lower support strip (26) and two lateral support strips (28), a head strip (12) and a sound absorber plate (16) arranged in the frame element (14), characterized in that the lateral support strips (28) are elastically flexible and movable relative to each other and the head strip (12) engages the upper end regions of the lateral support strips (28) and fixes them in a holding position.

This utility model relates to the field of prefabricated panel technology and discloses a composite thermal insulation and soundproof floor prefabricated panel, including a base layer made of crack-resistant mortar. Orthogonally distributed fiberglass mesh is laid within the base layer, and the fiberglass mesh is bonded to the base layer with cement mortar. Multiple second connecting plates are fixedly connected to the upper surface of the base layer. A functional layer, made of foamed cement composite board or graphite polystyrene board, is provided on the upper surface of the base layer. A protective layer, made of cement mortar, is provided on the outer wall of the functional layer. A corrugated sound insulation felt is embedded inside the functional layer. The foamed cement composite board or graphite polystyrene board of the functional layer provides high-efficiency thermal insulation performance. The corrugated sound insulation felt embedded inside increases the sound wave reflection path through its undulating structure. The 2-3mm thick sound insulation felt, combined with a 5-8mm wave peak height, can effectively absorb mid-to-high frequency noise of 125-4000Hz. The 200-300mm interval corrugated design allows the sound insulation felt to form a continuous sound barrier within the functional layer, reducing solid-borne sound transmission between floors.