127results about How to "Effective sound insulation" patented technology

The invention relates to a sound barrier structure for high speed railways. The sound barrier structure comprises a steel upright post and a plurality of sound barrier absorption/sound insulation unit plates which are transversely inserted in the steel upright post; elastic rubber is filled in a gap between a flange plate of the steel upright post and the sound barrier absorption/sound insulation unit plate; the sound barrier absorption/sound insulation unit plate comprises a front side plate, a rear side plate, locking buckles, a central framework and a sound absorption material, wherein the front side plate and the rear side plate are locked to a first locking plate and a second locking plate and the upper side and lower side of the central framework through the locking buckles; and the sound absorption material is filled in the gaps inside the locked front and rear side plates. Based on the conventional sound barriers, the sound barrier structure has good economic performance and durability by improving and expanding the types of the conventional sound barriers, and particularly the mechanical strength is greatly improved; and because the technology of bolt-free connection is adopted, the rigidity, shock resistance, fatigue resistance and safety performance of the sound barrier structure are greatly improved.

The invention relates to a method for manufacturing an unsaturated polyester resin reinforced glass bead plate. The method comprises the following steps of: 1, pouring an unsaturated polyester resin and a low shrinkage additive into a glue blending tank, stirring uniformly, adding a polymerization inhibitor, a release agent, a curing agent and a viscosity reducer, stirring uniformly, adding hollow glass microspheres and aluminum hydroxide, stirring uniformly, adding a thickening agent, and stirring uniformly to obtain unsaturated polyester resin paste; 2, coating the unsaturated polyester resin paste on the surfaces of a glass fiber mat or a glass fiber three-dimensional fabric, and coating by using polyester (PET) carrier films to obtain a prepreg; 3, drying the prepreg obtained in the step 2 in a drying room at the temperature of between 30 and 50DEG C for 12 to 24 hours; 4, removing the PET carrier films after the prepreg is dried, and cutting the prepreg; and 5, pressing a piece of prepreg in a hot-pressing mold, or overlapping a plurality of pieces of prepregs, and pressing the overlapped prepregs in the hot-pressing mold to obtain the unsaturated polyester resin reinforced glass bead plate.

The invention discloses a spraying rapid-solidification waterproof coating. The coating is characterized by consisting of a bitumen latex and a curing agent, wherein the bitumen latex consists of the following components in parts by weight: 60-65 parts of petroleum asphalt, 30-35 parts of water, 5-7 parts of an emulsifier, 20-35 parts of a neoprene latex and 10-20 parts of a styrene-butadiene latex, and the curing agent consists of, in parts by weight, 10-15 parts of anhydrous calcium chloride and 80-90 parts of water. Because of adoption of the above technical scheme provided by the invention, the spraying rapid-solidification waterproof coating has good low-temperature resistance, flexibility, flexure resistance, tear resistance, ageing resistance and dispersibility. Emulsified asphalt is modified fully, and a calcium chloride solution has extremely strong demulsification speed and property on the modified emulsified asphalt. Films are formed through spraying by using special devices; sprayinging technology is adopted; the efficiency is high; seamless connection is realized; and water channeling does not exist.

The invention discloses a detachable flexible water-proof casing pipe device which comprises an inner pipe, an upper flange, a lower flange, a water-proof rubber ring, a sealing casing pipe, a wall body, a flange with inner threads, a lower end flange and a rubber ring, wherein the inner pipe and the lower end flange are in threaded connection; the lower end flange and the flange with the inner threads are connected through a screw; the flange with the inner threads is connected with the sealing casing pipe; the sealing casing pipe is filled with a macromolecular filler; the lower flange is fixedly connected with the sealing casing pipe; the lower flange and the upper flange are connected through a screw; threads are formed at the lower end of the inner pipe; threads matched with the inner pipe are formed in the center hole of the lower end flange. The detachable flexible water-proof casing pipe device has the advantages of being simple in structure, easy to manufacture, low in cost, strong in practicability, safe and reliable, and having effective water resistance, shock resistance and sound insulation property and capable of reducing the construction cost.

The invention provides a damping composite floor, and relates to improvement of a floor structure. The damping composite floor comprises a wooden board layer, and is structurally characterized in that a rubber layer is fixed to the lower side of the wooden board layer, and a bamboo board layer is arranged under the rubber layer. The damping composite floor has the advantages of good damping and sound insulation effects and low cost.

The invention belongs to the technical field of acoustic metamaterials for low-frequency noise control, and relates to a film acoustic metamaterial of a honeycomb flanged structure, wherein a structural unit is formed by combining a film and the flanged honeycomb structure; the film acoustic metamaterial adjusts the frequency corresponding to the sound insulation peak to move to low frequency by changing the angle of the folded edge. According to the invention, the hexagonal honeycomb frame structure can be made of light carbon fibers, resin and other materials; compared with a traditional metal material, the structural weight of the honeycomb flanged acoustic metamaterial with the film structure is light, and the strength design requirement of the whole structure can be met.

The invention relates to a heat bridge-free self-insulation building block comprising insulation boards and concrete, wherein the insulation boards are arranged in the concrete at intervals in four rows; concrete ribs are formed between adjacent insulation boards in the same row; the concrete ribs and the insulation boards in different rows are staggered; the insulation boards in even layers and odd layers respectively extend out of the left side and the right side of the building block to form outwards-extended insulation boards; and all the insulation boards extend out of the top surface of the building block to form outwards-extended insulation boards. The building block disclosed by the invention has the beneficial effects that the heat bridge effect of non-insulation parts of the building block, masonry mortar joints and the like can be avoided with no need of adopting other insulating layers, so that the energy saving ability of the buildings is greatly increased and the heat insulation effect is enhanced and has the advantages of durable service, safety, fire prevention and effectiveness in sound insulation. According to the invention, the heat preserving layer does not need to be added, therefore, the construction technique is convenient, the speed is high, the building efficiency is increased, the material is saved, the transportation volume is reduced and the construction cost is reduced.

The invention discloses a suspended quakeproof sound-proof isolating layer structure which comprises a keel frame, rock wool layers, a bamboo clamping plate, a reinforced concrete layer and a plurality of quakeproof cushion blocks, wherein the quakeproof cushion blocks are uniformly distributed at intervals; the keel frame is fixed at the side parts of the quakeproof cushion blocks in a clamping manner; each rock wool layer is paved between every two adjacent quakeproof cushion blocks and in gaps of the keel frame; the top surfaces of the quakeproof cushion blocks, the top surface of the keel frame and the top surfaces of the rock wool layers are flush, and are combined to form a tiled surface; the bamboo clamping plate is horizontally paved on the surface of the tiled surface; the reinforced concrete layer is fixedly arranged on the top surface of the bamboo clamping plate. The invention further discloses a quakeproof sound-proof floor slab construction method adopting the suspended quakeproof sound-proof isolating layer structure. According to the invention, a damping action on sound waves can be achieved, and good sound-proof and quakeproof effects are achieved.

The invention discloses a sound insulation wall. The sound insulation wall comprises an outer wall and an inner wall, wherein concave and convex plates are symmetrically arranged between the outer wall and the inner wall; and foam fillers are arranged in the concave and convex plates. The sound insulation wall is reasonable in structural design, and can effectively insulate sound through the foam fillers in the middle; and the concave and convex plates also effectively divide sound waves, and can effectively increase the volume of the foam fillers to improve the sound insulation effect to a greater extent.

The invention discloses automatic processing equipment for automobile muffler production and belongs to the field of automobile muffler production. The equipment comprises an equipment body, wherein aprocessing mechanism is fixedly connected to the upper surface of the equipment body, a bottom plate is arranged on the lower surface of the inner wall of the processing mechanism, and a hinge pin isfixedly connected to the right side face of the bottom plate. According to the automatic processing equipment for automobile muffler production, through the arrangement of an electric pushrod, the bottom plate, the hinge pin, a rotary disk, a motor, a connecting belt, a fixed block, a guide wheel, second springs and a scraping plate, scraps fall onto the bottom plate in the processing process, and the motor drives the rotary disk to rotate, so that the connecting belt shrinks to drive the bottom plate to rotate downwards; meanwhile the electric pushrod drives the scraping plate to scrape offthe scraps adhering to the bottom plate, so that the scraps fall into a collection box to facilitate unified collection and treatment; and through cooperation of the scraping plate and multiple otherstructures, the scraps can be effectively cleared automatically, and then the working strength of staff is effectively lowered.

The invention discloses fireproof plywood. The fireproof plywood comprises a first fireproof plate and a second fireproof plate which are arranged symmetrically. A sound insulation plate and a connecting plate are sequentially arranged between the first fireproof plate and the second fireproof plate, and the first fireproof plate, the sound insulation plate, the connecting plate and the second fireproof plate are fixedly connected through adhesives; the first fireproof plate and the second fireproof plate are internally provided with a first cavity and a second cavity correspondingly, and through openings communicating with the first cavity and the second cavity correspondingly are formed in the side walls of the upper sides of the first fireproof plate and the second fireproof plate correspondingly; and water leakage openings communicating with the first cavity and the second cavity correspondingly are formed in the side walls of the sides, opposite to each other, of the first fireproof plate and the second fireproof plate correspondingly. The fireproof plywood is easy to operate and convenient to use; when heated, expansion pipes expands to open sealing plates in a jacking mode,thus water leaks out from the water leakage openings to extinguish flame, and the fireproof effect is good; and sound insulation is effectively achieved through the sound insulation plate.

The invention relates to a ball mill. The ball mill comprises a pedestal, a cylinder, a feeding pipe, a discharging port, bearing pedestals, gears, a motor and a PLC control cabinet. The cylinder is disposed on the pedestal. The bearing pedestals comprise a first bearing pedestal and a second bearing pedestal. The bottoms of the first and second bearing pedestals are fixed to the pedestal. The tops of the first and second bearing pedestals are respectively disposed at two ends of the cylinder. The discharging port passes through the first bearing pedestal and is connected to one end of the cylinder. The feeding pipe passes through the second bearing pedestal and is connected to the other end of the cylinder. The number of the gears is two. One of the gears sleeves one end of the cylinder and is fixedly connected to the cylinder, and the other gear is fixedly connected to the output shaft of the motor. The two gears are meshed in cooperation with each other. The motor is connected to the PLC control cabinet through a circuit. Compared with the prior art, the ball mill is capable of reducing running noise, clearing water and ore slurry next to the bearing pedestals and controlling the running speed.

The invention discloses an environment-friendly noise reducing and sound insulation board material, and in particular relates to a flooring sound insulation material which is generally used by floors of various buildings, such as residential buildings, office buildings, classroom buildings, hospitals and so on and has good sound insulation effect. The flooring reducing and sound insulation board between floors can effectively insulate and obstruct the noise to achieve the aim of noise reduction and sound insulation. With the fast development of the social economy, high rise blocks are popular, and the prior one-story houses have disappeared; and the modern residential living standard brings new trouble, namely the noise which has become one public disaster in the modern life. The noise reducing and sound insulation board is processed and manufactured by environment-friendly, nontoxic, harmless and pollution-free materials, and is formed by insertion and mutual fit of four cylindrical inserting nails (8) close to four corners on the back of an insertion type upper closing plate (7) and circular-hole-shaped inserting holes close to four corners on the front of the noise reducing and sound insulation chamber board (23).

The invention relates to the field of fabricated energy-saving buildings and the field of energy-saving building materials, in particular to a green fabricated energy-saving plate wall system. The wall comprises a wall body, the wall body comprises an assembly type concrete wallboard and a heat preservation and sound insulation board, a plurality of tenons are fixedly connected to the face, connected with the assembly type concrete wallboard, of the heat preservation and sound insulation board, and a plurality of mortises matched with the tenons are formed in the face, connected with the heatpreservation and sound insulation board, of the assembly type concrete wallboard; the tenons are filled with noise reduction materials, first installation accessories are arranged at the connecting positions of the four corners of the fabricated concrete wallboards and the four corners of the heat preservation and sound insulation board, and the upper portions and the lower portions of the first end faces and the second end faces of the adjacent fabricated concrete wallboards are connected through second installation accessories, the middle portions of the first end faces and the second end faces of the adjacent fabricated concrete wallboards are connected through steel bar slurry anchors. Sound and temperature transmission on the two sides of the wallboard can be effectively blocked, heatpreservation, sound insulation and energy conservation are effectively achieved, and comfort is improved.

The invention discloses a container-type refrigeration station. The carrier of the refrigeration station is a container. There is a refrigerator inside the refrigeration station. The refrigerator passes through a pipeline, a cooling pump, a refrigeration pump, an electronic water treatment instrument, a flow meter, Devices and various valves constitute the refrigeration cycle system and the cooling cycle system; the cooling cycle system and the refrigeration cycle system are finally connected to the external pipes through pipes, valves, and flanges on the side of the container. There is a cooling tower on the top of the container refrigeration station, which is connected with the pipes of the cooling circulation system through pipelines to form a complete cooling circulation system. The container-type refrigeration station has the advantages of reasonable structural design, space saving, quick installation and relocation, high degree of intelligence, simple operation, good sound insulation effect, good exhaust, heat dissipation and dehumidification, etc., and can be widely used.

The invention discloses a refractory insulating brick with a solid waste concave-convex core column. According to the weight sum of raw materials, the refractory insulating brick comprises: 70-80wt% of main materials and the balance of auxiliary materials, wherein the main materials comprise magnesium oxide containing solid wastes, and the auxiliary materials comprise aggregates, cement, gypsum and water. The auxiliary materials can also comprise an additive frequently used in the field to improve the performance of a brick material. The moisture content of an insulating brick body is lower than 5%. The brick body is of a concave-convex embedded structure; two bosses at the obverse side of the brick body and a convex part at the side of the brick body are formed into a bulge connection structure; grooves in the back of the brick body and a concave part at the corresponding side of the brick body are formed into an embedded connection structure; a matching structure formed by the bosses at the obverse side and the grooves in the back is circular; the bosses can be embedded into the grooves; a matching structure formed by the concave part and the convex part which are located at the sides is trapezoidal; and the convex part can be embedded into the concave part.

The invention relates to a thick-mass bagasse coating, which is characterized by being prepared from the following ingredients in percentage by mass: 19.5-27.2% of pure acrylic emulsion, 1.5-7.5% of pigment, 35-55% of filler, 0.5-1.3% of wetting dispersant, 0.1-0.18% of neutralizer, 0.1-0.5% of preservative, 0.1-1.2% of thickening agent, 1.0-2.1% of coalescing agent, 1.0-3.2% of antifreezing agent, 15-35% of bagasse and 4.5-12.2% of water, wherein the bagasse is reproducible plant fibers. After the thick-mass bagasse coating is adopted, the defects of poor heat preservation, thermal insulation, sound insulation and humidity regulation functionality of a traditional coating can be overcome; main materials adopted by the thick-mass bagasse coating have the characteristics of environment protection, reproduction, low price, high value and the like.

The invention provides a thermal-bridge-free thermal insulation building block and a wall building method. The thermal-bridge-free thermal insulation building block mainly comprises a horizontal thermal insulation board, a recessed connector, protruding connector thermal insulation boards and protruding connectors. The thermal-bridge-free thermal insulation building block is characterized by comprising a main block and a coordinate block, wherein the main block is of a trough type and is provided with one recessed connector and two protruding connectors; the coordinate block is of an 'L' type and is provided with one protruding connector; the horizontal thermal insulation board is arranged on one side which is not provided with the connector, and the protruding connector thermal insulation board is arranged in each protruding connector. The thermal-bridge-free thermal insulation building block has the beneficial effects and advantages that all horizontal and vertical mortar joints of a built wall are staggered mutually, and a thermal bridge effect of a non-thermal-insulation part of a building block, built mortar joint parts and the like can be avoided while no other insulating layer is adopted; energy-saving capacity of a building is greatly increased, a thermal insulation effect is enhanced, and the thermal-bridge-free thermal insulation building block is durable, safe and fireproof and achieves an effective sound-proof effect.

The invention provides a silica and titanium oxide aerogel foam cement. The silica and titanium oxide aerogel foam cement comprises, by mass, 30-65 parts of ordinary Portland cement, 5-15 parts of aerosil, 5-15 parts of titanium oxide aerogel, 4-10 parts of silicon micro-powder, 2-4 parts of a coagulation accelerator, 2-4 parts of a water reducer, 4-8 parts of a foam stabilizer, 5-15 parts of a foaming agent and 5-25 parts of fly ash. The heat conduction coefficient of the foam cement is 0.075-0.090W/(m.K), the sound absorption ability is 0.10-0.20%, the desiccated bulk density is 250-450kg/m<3>, and the comprehensive strength is 3.0-5.0Mpa; and compared with cements in the prior art, the foam cement provided by the invention has the advantages of good waterproof property, low shrinkage, long life, simple construction and easy operation.