281results about "Noise reduction construction" patented technology

The utility model discloses a trough beam structure capable of separating pedestrians from vehicles, belongs to the field of bridge engineering, and solves the problems that the clearance below a bridge is difficult to meet the flood discharge requirement after the bridge is level-crossed with a dike, the noise and tail gas pollution of a motor vehicle lane is serious, and the pedestrian experience feeling is poor. A channel beam is of a channel structure formed by a bottom plate and web plates on the two sides of the bottom plate, cantilever plates are arranged on the two sides of the channel beam respectively, and bridge railings are arranged on the outer sides of the cantilever plates. The bottom plate is used for arranging a motorway, and the cantilever plate is used for arranging a sidewalk. By adopting the through channel beam structure and the cantilever slab overhanging structure, the height of the bridge building is effectively reduced, navigation and flood discharge clearance under the bridge are ensured, and roads on two banks do not need to be lifted; the webs on the two sides of the channel beam are used for conducting hard isolation on a sidewalk and a motorway, separation of people and vehicles is achieved, potential safety hazards are reduced, and noise and tail gas are isolated.

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.

The utility model discloses a high-stability vertical sound barrier embedded part, which belongs to the technical field of sound barrier embedded parts, and adopts the technical scheme that the high-stability vertical sound barrier embedded part comprises a sound barrier embedded part body, an auxiliary stabilizing mechanism is arranged at the top of the sound barrier embedded part body, and the auxiliary stabilizing mechanism comprises a storage component and a calibration component; the storage assembly is arranged at the top of the sound barrier embedded part body, the calibration assembly is arranged in the storage assembly, and by arranging the storage assembly and the calibration assembly, a user can install the storage assembly at any corner of the sound barrier embedded part body according to actual conditions so as to receive and fix the calibration assembly; a user can combine the calibration assembly and the storage assembly, the calibration assemblies arranged at the tops of the two sound barrier embedded part bodies can mutually emit calibration light rays, at the moment, the user only needs to directly observe whether light ray drop points are located on the same level or not, calibration can be conducted, and the user can conveniently conduct installation work.

The transition section guardrail is used for being installed between a bridge section guardrail and a roadbed section guardrail, the transition section guardrail comprises a first stand column, a first beam and a second beam, the first stand column is installed on the ground, and the first beam and the second beam are installed on the side wall of the first stand column. One end of the first beam is used for being connected with a collision face of a bridge section guardrail, and the other end of the first beam is used for being connected with a roadbed section guardrail. According to the transition section guardrail provided by the utility model, the transition section guardrail is provided with the first beam and the second beam at intervals along the axial direction of the upright post, and the first beam is respectively connected with the bridge section guardrail and the roadbed section guardrail. Meanwhile, when the second beam is arranged, the height of at least part of the second beam is larger than that of the head-on collision face, and the second beam is also connected with the bridge section guardrail and the roadbed section guardrail. Therefore, the anti-impact requirements of the transition section guardrail and the whole guardrail can be met, and meanwhile the construction difficulty and the construction cost are effectively reduced.

The utility model provides a sound insulation and noise reduction device for a rail transit bridge, which comprises a sound insulation and noise reduction base plate, wherein an accommodating groove is formed in the inner side wall of the sound insulation and noise reduction base plate; the movable frame is rotationally connected to the interior of the containing groove through a bearing, and an X-shaped support is fixedly arranged in the middle of the movable frame; the sound absorption cotton and the sound insulation plate are arranged in the movable frame respectively, and the sound absorption cotton and the sound insulation plate are arranged on the two sides of the X-shaped support respectively; and the protection plate is arranged on the sound insulation and noise reduction base plate, and the protection plate covers the containing groove. According to the device, noise can be subjected to double weakening and noise reduction through the sound absorption cotton and the sound insulation plate, the sound insulation and noise reduction effect is improved, the containing groove is detached from the sound insulation and noise reduction base plate, the movable frame is rotated out of the containing groove around the hinge shaft, the sound absorption cotton and the sound insulation plate can be pulled out of the inserting groove to be cleaned or replaced, and operation is convenient and fast.

The utility model belongs to the technical field of sound barriers, and particularly relates to a composite nonmetal sound barrier unit plate. The non-metal sound barrier unit plate comprises a back plate formed by pouring concrete and a face plate made of ceramic particle sound absorption materials, the back plate and the face plate are connected through a damping deformation layer, and the face plate can float relative to the back plate in a damping mode after being impacted by a load. The sound absorption panel of the non-metal sound barrier unit plate can perform damping floating relative to the back plate, so that the non-metal sound barrier unit plate is more impact-resistant and fatigue-resistant, and has the characteristics of high structural strength, lasting vibration and noise reduction effects and long service life.

The utility model relates to the technical field of noise pollution prevention and control, in particular to a sound insulation screen for preventing and controlling noise pollution, which comprises a sound insulation mechanism for preventing and controlling noise pollution, and a fixing mechanism for fixing rotating equipment is arranged above the sound insulation mechanism. By arranging the sound insulation mechanism and the fixing mechanism, when a certain sound insulation plate is damaged and needs to be disassembled, a knob is rotated, the knob drives a bidirectional threaded rod to rotate, the bidirectional threaded rod rotates to drive two movable blocks to get away from each other, the movable blocks drive movable rods to move, and the left movable rod and the right movable rod also get away from each other; the movable rods move to be separated from the limiting assemblies, then the inserting rods are detached from the limiting assemblies, limiting of the sound insulation plates is relieved through the limiting assemblies, finally, the damaged sound insulation plates are detached, all the sound insulation plates in the device can be detached independently, the detaching process is convenient and rapid, and the using effect of the device is effectively improved.

The invention relates to an acoustic insulation panel (1) based on Helmholtz single-cavity resonators, designed to effectively attenuate low-frequency noise generated by industrial equipment. The panel (1) is formed by a front wall (2) and a rear wall (3), both U-shaped, enclosing a hollow space (4) that acts as a resonator cavity. The shorter sides (2', 3') of these walls are folded inwards, forming channels that function as inlets (5) to the resonator. Furthermore, an acoustic insulation system composed of several of these panels (1) is described, in which the panels are arranged so as to allow both ventilation and noise attenuation. The associated acoustic insulation method consists of facing the resonators to maximize noise absorption at specific frequencies, ensuring a laminar air flow that improves the efficiency of the system without the need for large volumes or additional silencers.

The invention relates to the technical field of environmental acoustics, discloses a road totally-enclosed sound barrier sound field prediction method and system, belongs to the field of environmental acoustics, and has very high practicability in sound field prediction and noise pollution evaluation of public road traffic noise after a totally-enclosed sound barrier is implemented. On the basis of the acoustic propagation principle, a new prediction method is provided for a road traffic noise source and a totally-closed sound barrier, a sound field is divided into two subsystems including a barrier internal space and an external space, and equivalent acoustic models of the two subsystems and a calculation method and recommendation parameters of the noise source sound power level are given respectively. According to the method, the sound environment of the high-rise building close to the urban road can be accurately predicted and calculated, and a basis is provided for noise pollution evaluation and control. And meanwhile, the method can be matched with a national standard method or commercial acoustic software for use, and has relatively high applicability.

The invention relates to the technical field of highway operation noise treatment, in particular to an energy-saving sound barrier structure of an expressway, which comprises a main body assembly, a bearing platform, a stand column arranged at the end part of the bearing platform and sound insulation board units arranged on the inner wall of the stand column in an array, bosses are further arranged at the ends of the sound insulation board units and matched with grooves formed in the end faces of the bearing platforms, and the outer walls of the bosses are further sleeved with sealing strips; the moving assembly comprises a main rack, the main rack is arranged in a built-in cavity formed in the inner wall of the boss, the inner wall of the built-in cavity is further provided with a bimetal induction piece, the end of the bimetal induction piece is connected with a moving part, and the moving part is connected with the main rack and drives the main rack to move on the inner wall of the built-in cavity; structural positioning of the main body assembly is achieved through cooperation of the boss and the groove. A variable cavity is arranged in the sealing strip, the breathing effect is generated through thermal expansion and cold contraction of a working medium, the ice layer adhesive force is damaged in advance to form microcracks, and the difficulty of follow-up ice breaking is lowered.

The present application relates to the field of rail transportation, in particular to a full-closed sound barrier for rail transportation, comprising a first sound barrier and a second sound barrier, a first channel and a second channel are formed on both sides between the first sound barrier and the second sound barrier, and a sound-absorbing assembly is arranged in the first channel and the second channel, the sound-absorbing assembly is provided with a first sound-absorbing module and a second sound-absorbing module, and a flow path for air circulation is formed between the first sound-absorbing module and the second sound-absorbing module, air flows through the flow path formed by the first sound-absorbing module and the second sound-absorbing module, noise energy is effectively reflected, scattered and absorbed during the propagation process, thereby effectively attenuating the sound wave intensity, greatly reducing the noise level, and gradually weakening the sound wave intensity. The present application also relates to a mounting method of the full-closed sound barrier for rail transportation.

The embodiment of the utility model discloses a frame assembly and a photovoltaic sound barrier system, the frame assembly comprises at least two oppositely arranged frame body parts, each frame body part comprises a base body part and a mounting part, and at least part of each mounting part extends from the base body part in a second direction; a first installation area and a second installation area which are arranged in the first direction are formed between the frame parts, the first installation area can accommodate the sound insulation assembly, and the second installation area can accommodate the photovoltaic assembly; and the pressing and fixing piece is detachably connected to the mounting part, and a gap used for clamping the photovoltaic module is formed between the pressing and fixing piece and the mounting part. The sound insulation assembly and the photovoltaic assembly are compatible through the frame assembly, and modular integral installation is realized, so that the influence of field installation on road traffic is reduced, the field construction difficulty is reduced, and the construction efficiency is improved.

We provide acrylic translucent panels for roadside installation that use recycled materials obtained through chemical recycling. [Solution] In a roadside acrylic translucent panel made of multiple layers of laminated acrylic material, at least one layer of acrylic material in each layer is made using recycled material. Specifically, the laminated acrylic material consists of a multi-layered acrylic cast plate 11 and a soft acrylic layer 12 sandwiched between them. The recycled material usage rate is set to be 16% by weight or more and 80% by weight or less of the total weight of the multiple layers of laminated acrylic material. The layers of acrylic material containing recycled material and the layers of acrylic material consisting only of virgin material are molded separately, and then these layers of acrylic material are laminated and fixed together.

The invention provides a rail transit bridge floor arrangement structure based on a near-rail sound barrier, which comprises a rail beam, at least two parallel rail plates are arranged on the rail beam, the rail plates extend along the length direction of the rail beam, an inter-line near-rail sound barrier mounting foundation is reserved between the two adjacent rail plates, and the near-rail sound barrier is arranged on the rail beam along the width direction of the rail beam. Mounting foundations of the line-side near-rail sound barriers are reserved on the two sides of the rail beam, and the mounting foundations of the inter-line near-rail sound barriers and the mounting foundations of the line-side near-rail sound barriers are fixedly connected with the rail beam. According to the method, the installation conditions of three rows of near-rail sound barriers between lines and on the line side are reserved, meanwhile, the installation conditions of traditional upright sound barriers on the two sides of a bridge floor are reserved, and different sound barrier combination forms can be adopted according to different environmental influence evaluation requirements. According to the method, the installation condition of the near-rail sound barrier can be reserved on the bridge floor at low economic cost, and the method serves as a noise reduction preparation measure for long-term upgrading and can meet the increasing environmental protection requirements of residents along the rail transit.

This utility model provides a steel structure and a sound barrier for use in sound barriers, belonging to the field of railway facilities. It includes: a steel frame installed on a foundation; multiple purlins spaced apart and inserted into the steel frame; and supporting channel steels mounted on the steel frame. The purpose is to solve the problems of component loosening, structural deformation, and even collapse in existing steel structures used in sound barriers. The achieved technical effect is: a sound barrier steel structure with strong wind and earthquake resistance, preventing deformation of the steel frame due to uneven local stress.

The utility model relates to the technical field of noise reduction equipment, and discloses a noise reduction barrier which comprises a noise reduction barrier body arranged in sequence, and the noise reduction barrier body comprises a barrier frame, a base and a noise reduction structure located in the barrier frame. The noise reduction structure comprises noise reduction pipes, first sound absorption and insulation cotton, second sound absorption and insulation cotton and impedance gradient type reflecting plates, the noise reduction pipes are evenly arranged and distributed in the barrier frame, the first sound absorption and insulation cotton is distributed and located between the outer walls of the noise reduction pipes in the barrier frame, and a spiral airflow structure is arranged on the inner circumferential wall of each noise reduction pipe. The second sound absorption and insulation cotton is located on the inner circumferential wall of the noise reduction pipe outside the spiral airflow structure. According to the noise reduction barrier, high-frequency noise reduction is enhanced through the two-stage sound absorption system, the spiral airflow structure and the impedance gradual change type reflecting plate cooperatively improve the low and medium frequency noise elimination amount, oblique incidence sound wave absorption is optimized through the micro-perforation gradient design, triple mechanisms of material sound absorption, reflection interference and path dissipation are fused, and the noise reduction effect is good.

The utility model relates to the technical field of sound barriers, and provides a sound insulation assembly of a detachable sound barrier, which comprises a mounting base, support plates are fixed on two sides of the top end of the mounting base, an assembling mechanism is fixed on the top end of each support plate, sound absorption structures are fixed on the outer walls of two sides of each assembling mechanism, and the sound absorption structures are fixed on the outer walls of two sides of each assembling mechanism. The sound absorption structure comprises bonding layers fixed to the outer walls of the two sides of the assembling mechanism, sound absorption plates are fixed to the outer walls of the bonding layers, and sound absorption strips are evenly fixed to the outer walls of the sound absorption plates. The sound absorption structure is arranged, under the sound absorption effect of the sound absorption plate, sound can be preprocessed when reaching the sound insulation structure, the sound insulation efficiency is improved, under the effect that the sound absorption strips are evenly distributed, the sound can be scattered, the energy of the noise is dispersed, and the sound insulation effect is improved. The sound insulation assembly of the detachable sound barrier has the functions of conveniently absorbing sound and scattering sound waves, and the working efficiency of the sound insulation assembly of the detachable sound barrier in use is improved.

The utility model relates to the technical field of fences, and discloses a noise reduction protective fence for an elevated highway, which comprises a base plate, polyurethane damping glue is fixedly arranged on one side of the base plate, a noise reduction component is fixedly arranged on one side of the polyurethane damping glue, a fence frame is fixedly arranged on the surface of the base plate, and the noise reduction component is fixedly arranged on one side of the base plate. A cavity is formed in the inner wall of the fence frame, a strengthening assembly is fixedly arranged in the cavity, and a green plant planting frame is fixedly arranged on one side of the noise reduction assembly. According to the noise reduction protective fence for the elevated highway, by arranging the noise reduction assembly and the reinforcing assembly, noise generated by the elevated highway can be reduced through polyurethane damping glue, a foamed aluminum plate and a honeycomb aluminum plate, the overall weight of the fence is low, and the overall structural strength of the fence can be improved through the reinforcing vertical ribs and the reinforcing transverse ribs arranged in the fence frame; the noise reduction performance of the fence is improved, and meanwhile the fence has the advantages of being light in weight and high in strength.

The application relates to a sound barrier prefabricated baffle and a mounting method thereof, and relates to the field of road noise reduction facilities. The sound barrier prefabricated baffle is mounted on one side of a road and comprises an integrally-formed sound insulation board and a mounting seat. A locking mechanism for fastening connection between the mounting seat and the road is connected to the mounting seat. A limiting mechanism is mounted on the road. The limiting mechanism comprises a limiting plate with a height not lower than that of the sound insulation board, which is mounted on the side of the sound insulation board away from the road. Sound insulation cotton is filled between the sound insulation board and the limiting plate. The application has the effect of reducing the occurrence of dangerous situations caused by the broken sound insulation board.

The present application relates to the technical field of sound barrier, and discloses a photovoltaic sound barrier device, which comprises a sound barrier body and a movable photovoltaic panel, and the sound barrier unit comprises a photovoltaic panel, sound-absorbing material, a frame and a sound insulation backboard, a plurality of photovoltaic cells are built-in the photovoltaic panel, and the regions of the photovoltaic panel except the regions provided with the photovoltaic cells are uniformly provided with through holes, and the photovoltaic panel, the sound-absorbing material layer and the sound insulation backboard are covered on the frame with a sound-absorbing cavity; the movable photovoltaic panel comprises a photovoltaic assembly, a flexible sealing material layer and an adjusting driving mechanism, the flexible sealing material layer is used for tightly adhering the photovoltaic assembly to the sound insulation backboard of the sound barrier unit, and the adjusting driving mechanism is used for adjusting the angle of the photovoltaic assembly towards the sun; when the adjusting driving mechanism is retracted, the photovoltaic assembly is adhered to the backboard of the sound barrier unit, and the two adjacent movable photovoltaic panels are tightly adhered. The present application can effectively improve the noise reduction effect of sound absorption and sound insulation, and improve the power generation efficiency.

The utility model discloses an integrated soundproof wall, which relates to the technical field of soundproof walls, and comprises a wall body, the outer part of the wall body is fixedly connected with a mounting box, the mounting box is mounted close to the upper side of the wall body, the outer part of the mounting box is fixedly connected with a guide pipe, the bottom of the mounting box is provided with a through hole, and the through hole is communicated with the guide pipe. The outer portion of the wall body is fixedly connected with two sets of symmetrically-arranged installation strips, sliding grooves are formed in the outer portions of the installation strips, a sliding rod is slidably connected between the two sets of sliding grooves, one side of the sliding rod is fixedly connected with a sponge strip, the sponge strip is attached to the outer surface of the wall body, and a climbing mechanism is installed on the outer portion of the wall body. According to the device, the cleaning strip is controlled to circularly slide up and down on the outer surface of the wall in a reciprocating mode, clean water is matched for cleaning, automatic cleaning of the sound insulation wall can be rapidly conducted, cleaning of the wall does not need to consume more manual operation and material resources, and the cleaning efficiency is greatly improved.

The invention discloses an adjacent camping construction rapid protection method for a high-speed railway bridge crossing a built operation station yard, and relates to the technical field of high-speed railway construction.The method comprises the steps that firstly, based on a digital twinborn model, a lower built operation station yard opening plan is integrated, and completion nodes of an upper crossing bridge main body structure are confirmed; and the implementation progress is ensured through real-time monitoring of the Internet of Things. Then, entrance guard protection systems are arranged at the two ends of the beam transporting channel, the standardized hard partition structures are rapidly installed on the existing bridge stand column structures on the two sides of the beam transporting channel through hoops, and the closed beam transporting channel is formed. And finally, the permanent sound barrier on the outermost side of the line is preferentially constructed, so that the permanent sound barrier can be used as reliable temporary hard isolation protection during the subsequent accessory structure construction period. According to the method, full-process collaboration from intelligent planning, dynamic risk management and control to permanent structure function multiplexing is realized, and on the premise of ensuring the safety of the established operation station yard, the construction efficiency is improved, and the protection cost is reduced.

The utility model discloses a prefabricated truss concrete structure assembly type fence and sound insulation wall. The prefabricated truss concrete structure assembly type fence and sound insulation wall comprises a plurality of truss concrete wall column units prefabricated in a factory and a plurality of truss concrete wall plate units prefabricated in the factory and arranged between the adjacent truss concrete wall column units. Each truss concrete wall plate unit comprises a concrete plate and a plurality of connecting plates I, a plurality of sound insulation quantity reduction holes are formed in each unit at intervals, and the upper end and the lower end of each truss concrete wall plate unit are further provided with a water retaining upper rabbet and a water flooding lower rabbet respectively. A wallboard steel truss and an anti-crack steel mesh are arranged in the concrete slab, and the connecting plate I is installed on the wallboard steel truss. The truss concrete wall column unit comprises a concrete column and a plurality of connecting plates II, a wall column steel truss and an anti-crack steel mesh are arranged in the concrete column, and the connecting plates II are mounted on the wall column steel truss. The wall plate units and the wall column units are connected through connecting plates. The assembling degree is high, the structure is safe, and parts can be directly detached, can be partially replaced and can be repeatedly used.

The utility model discloses an anti-bending unit plate, which relates to the technical field of sound barriers and comprises a face and back plate assembly provided with an inwards concave V-shaped reinforcing rib groove. The reinforced cross beams are respectively fixed on the inner sides of the upper and lower ends of the face and back plate assembly; the end sealing plates are symmetrically arranged on the two sides of the face and back plate assembly. The sound absorption assembly is arranged between the two reinforced cross beams, and the two sides of the sound absorption assembly are blocked by the end sealing plates. When the fracture-resistant unit plate is impacted by wind pressure of a train, the fracture-resistant unit plate can resist deformation caused by the wind pressure, and therefore damage to the unit plate is avoided.

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 a high level bridge wind resistance noise reduction louver screen relates to high level bridge screen structure field, including steel structure frame, multiple rotatable windproof sound insulation flabellums are equipped with on steel structure frame along the height direction equidistance, two connecting rods are symmetrically equipped on multiple windproof sound insulation flabellums, two connecting rods are all hinged with multiple windproof sound insulation flabellums, and the top of steel structure frame is equipped with wind power drive arrangement, and wind power drive arrangement is connected with the top of two connecting rods all, and can drive connecting rod and move up, and the bottom of connecting rod is equipped with reset device, can utilize the angle regulation of wind power direct drive windproof sound insulation flabellum, realizes the automatic switching of low -speed noise reduction and high -speed wind resistance, and has reliability and environmental adaptability simultaneously, thereby solves the problem that existing fixed type wind screen needs manual regulation blade angle, and the effect of sealing noise reduction is not good, and the problem of response lag.

The utility model relates to the technical field of metro decoration construction noise isolation, and discloses a metro decoration construction noise isolation device which comprises a bottom plate and pulley blocks fixedly installed at the lower end of the bottom plate at equal intervals. The bottom plate slides in the stretching direction through the pulley block at the lower end, the inflatable air bag is unfolded, the inflatable air bag is inflated, the inflated inflatable air bag expands due to the inflated air, and at the moment, the inflatable air bag is divided into three layers through the sound insulation plate in the middle of the inflatable air bag; noise can be weakened by the inflatable air bags layer by layer when transmitted outwards through the inflatable air bags, and the noise isolation device for metro decoration construction can be inflated and expanded when needing to be used through cooperation between the inflatable air bags and the sound insulation plates. And when not in use, the sound insulation weight is lighter than that of a traditional fixed plate due to the arrangement of the material, so that the movement is convenient.

The present application relates to sound insulation equipment technical field, more specifically, it relates to a kind of full-closed sound barrier based on building energy-saving sound insulation material board, comprising: building energy-saving sound insulation material board, door type steel frame structure and self-starting smoke outlet structure;Building energy-saving sound insulation material board is equipped with multiple, multiple building energy-saving sound insulation material board is respectively installed in the side and top of door type steel frame structure;Self-starting smoke outlet structure is closed and installed in the normally closed smoke outlet of door type steel frame structure;When the fire occurs in the full-closed sound barrier and produces a lot of smoke, self-starting smoke outlet structure removes the plugging of normally closed smoke outlet.The present application uses building energy-saving sound insulation material board and door type steel frame structure to cooperate as enclosure structure, effectively reduce traffic noise;Self-starting smoke outlet structure is also installed, effectively ensure the use safety under emergency state.

The utility model discloses a sound barrier construction machine, which relates to the technical field of sound barrier construction, and comprises a movable chassis, an automatic lifting frame is arranged on the movable chassis, the automatic lifting frame comprises a support frame, the middle part of the support frame is fixedly arranged on the movable chassis, and the bottom part of the support frame is fixedly arranged on the movable chassis. A construction platform capable of moving up and down is arranged on one side of the supporting frame, a balance weight unit capable of moving up and down is arranged on the other side of the supporting frame, and the driving vehicle body is located between the construction platform and the balance weight unit. The supporting frame is provided with a construction table lifting assembly and a balance weight lifting assembly, the construction table lifting assembly is connected with the construction platform, and the balance weight lifting assembly is connected with the balance weight unit; in addition, a control console is arranged on the driving vehicle body. The sound barrier construction machine provided by the utility model is convenient for working personnel to construct a sound barrier, and has the advantages of saving transportation space and reducing transportation cost.