35results about How to "Noise reduction function" patented technology

The invention relates to a diatom ooze environment-friendly decorating material, belonging to the technical field of building materials. The diatom ooze environment-friendly decorating material is composed of the following components in parts by weight: 4-90 parts of kieselguhr, 20-60 parts of bentonite, 10-40 parts of kaolin, 5-30 parts of atlapulgite, 10-60 parts of quartz sand, 5-40 parts of meerschaum, 5-40 parts of calcium carbonate, 5-30 parts of medical stone powder, 2-20 parts of nano titanium dioxide powder, 0.1-1.5 parts of wood fiber, 0.3-1.5 parts of chopped fiber, 4.5-40 parts of attapulgite, 2-20 parts of hydroxypropyl methylcellulose and 1-20 parts of inorganic pigment. The diatom ooze environment-friendly decorating material can purify air and eliminate peculiar smell, has the advantages of fire resistance, flame retardant, humidity regulation, noise absorption and reduction and heat insulation, and can release negative oxygen ions.

A low-noise humanoid robot head system comprises a neck action drive component, a lower jaw action drive component, a plurality of drive ropes and an action drive system. According to the human structural position, the lower jaw action drive component is arranged above the neck drive component; and the action control system is connected with and controls the neck action drive component and the lower jaw action drive component through corresponding drive ropes. The system has the motion of four degrees of freedom, i.e. the neck motion of three degrees of freedom and mouth motion of one degree of freedom. The motion noise of the system does not exceed 30dB(A).

The invention relates to a water-draining type asphalt pavement and a construction method, and belongs to the technical field of road construction. The pavement comprises a pavement layer with an inclination slope for allowing inclined water draining to two sides, and a water-resisting layer for separating the pavement layer from a foundation, water collecting layers with void ratio of 35 percent to 40 percent are arranged at the lower parts of the two sides of the pavement layer, the outer sides of the water collecting layers are communicated with collecting ditches built on two sides of the pavement through declination water seepage holes distributed at intervals, the pavement layer is a water draining asphalt pavement layer with void ratio of 18 percent to 25 percent, the two sides of the water-resisting layer extend to the collecting ditches from the bottom of the water collecting layer respectively, and the bottoms of the collecting ditches are lower than the water collecting layer. According to the invention, the water draining function with penetrating, blocking and draining organically combined can be achieved, splashing and water mist caused by driving in rainy days are enabled to be reduced remarkably, and the favorable visibility is kept.

The invention relates to a brake having noise elimination function and the execution mode of the invention relates to the brake of an elevator winch. The brake allows the brake switch to have more accurate detecting precision with low motion noise and have noise elimination function. The brake comprises an armature able to leave or contact with the rotary cylinder, a spring which exerts force upon the rotary cylinder from armature direction, thus to press the brake sheets upon the rotary cylinder, an electromagnet which overcomes the application of force of the spring, attracts the armature to the direction off the rotary cylinder, and magnetically fixes the armature, and a noise elimination member which reduces the collision noise resulting from the magnetic fixation of the armature and reduces the noises when the brake sheet contacts with the rotary cylinder.

The invention provides a high-carbon and environment-friendly friction material for automobiles and a preparation method of the high-carbon and environment-friendly friction material, belongs to the field of friction composite material preparation, and relates to a friction material. Composition of steel cotton fiber and zinc powder is used for replacing copper to achieve functions of copper in the original formula, and is synergistic with modified resin, aramid fiber, synthetic graphite, mica and other raw materials, and stability of the friction material is improved, and environment pollution due to heavy metal copper entering the environment along with friction dust is prevented. Defects of replacement of copper with zinc are complemented by addition of the steel cotton fiber, the composition of the steel cotton fiber and the zinc powder plays a role similar to that of copper in the material, and accordingly, by addition of the steel cotton fiber, performance of the high-carbon material is more superior, and braking performance is more stable.

The invention discloses a multifunctional diatom mud putty powder for indoor use. Its components include: Maya blue, ultrafine diatom mud, nano titanium dioxide, silver ionic liquid, ultrafine volcanic stone powder, ultrafine perlite powder, ultrafine Ground calcium carbonate, hydroxypropyl methylcellulose, acrylates, glycol, cellulose thickener, wetting and dispersing agent. The invention also discloses a preparation method of the indoor multifunctional diatom mud putty powder. The raw materials used in the present invention are all environmentally friendly, non-toxic and non-polluting materials. By combining Maya blue, nano-titanium dioxide and diatom mud, silver ionic liquid and nano-titanium dioxide are used in conjunction with each other, ultra-fine diatom mud, ultra-fine volcanic stone powder and The combination of superfine perlite powder and the like enables the present invention to have multiple functions such as anti-formaldehyde, antibacterial, water and moisture resistance, heat insulation, fire retardant, sound insulation and anti-noise.

The invention relates to a greening guardrail pier capable of cultivating planets and a manufacture method of the greening guardrail pier. The greening guardrail pier mainly consists of a pier body and a cultivating groove. The greening guardrail pier and the manufacture method are characterized in that the cultivating groove is arranged on the pier body, the cultivating groove is internally provided with a water outlet pipe, and the lower end of the water outlet pipe is opened at the bottom of the pier body. The greening guardrail pier can be in cooperation with an existing fence guardrail, and is arranged in the middle of a road to separate a backward lane from a forward lane, or to separate a motor way, a bicycle lane from a sidewalk, and flowers and plants can be cultivated in the guardrail pier, so that the environment can be beautified, the halation caused by the joined lamplight of vehicles in the night can be further avoided, and the vehicle running safety can be improved.

The invention discloses an epoxy interior wall water-based paint. The epoxy interior wall water-based paint comprises a component A and a component B, wherein the component A is composed of the following components in percentages by weight: 20 to 40% of waterborne epoxy resin, 15 to 25% of distilled water, 5 to 10% of kaolin, 10 to 20% of titanium dioxide, 15 to 25% of diatom mud, 5 to 10% of shell powder, 0.5 to 1.0% of a dispersing agent, 1 to 2% of ethanol, 1 to 2% of a preservative, 0.2 to 0.5% of an antifoaming agent and 0.2 to 0.5% of a thickening agent; and the component B is composed of the following components in percentages by weight: 30 to 40% of a waterborne epoxy curing agent and 60 to 70% of distilled water. The invention provides a self-breathing, low-VOC and sound-absorbable epoxy interior wall water-based paint and a preparation method thereof. The water-based paint is applicable to public places like family places, meeting halls, classrooms and gyms, specifically to places with enclosed environments for long stay of people, or to the public places like meeting halls capable of hosting meetings.

The invention discloses multifunctional environmentally-friendly water-based paint. The multifunctional environmentally-friendly water-based paint comprises main materials, additives and deionized water, wherein the main materials include diatom ooze, maya blue, tourmaline, nanometer titania, ultra-fine aluminum silicate, sepiolite, silicon carbide and zinc fluosilicate; the additives include acrylate polymer emulsion, silver ion solution, fluoro-silicone emulsion, wetting dispersant, preservative, polyvinyl alcohol, a thickener, hydroxypropyl methyl cellulose, a buffering agent, a defoaming agent, an anticracking agent and inorganic pigment. The invention also discloses a preparation method of the multifunctional environmentally-friendly water-based paint. According to the multifunctional environmentally-friendly water-based paint, the raw materials are environmentally-friendly, nontoxic and pollution-free materials; maya blue, nanometer titania and diatom ooze are used in match to enable efficient function of resisting formaldehyde, ammonia and benzene; the silver ion solution and nanometer titania are used in match to enable effective antibacterial effect and long-lasting antibacterial effect; tourmaline and silicon carbide are added, so that the functions of health care, smell removing and fireproofing are realized.

The invention provides a plenum chamber with the purification function, the disinfection function and the sound absorption function. The plenum chamber comprises a plenum chamber body, a purification and disinfection device and sound absorption materials, wherein the plenum chamber body is a cuboid, any one side of the plenum chamber body can be connected with an air duct as needed, the mode of connection between the plenum chamber body and the air duct is the same as the mode of connection between a common air supply and discharge plenum chamber and the air duct, the purification and disinfection device is firmly installed in the plenum chamber body and between an air inlet and an air outlet, and the sound absorption materials are evenly attached to the outer wall of the plenum chamber body. The plenum chamber with the purification function, the disinfection function and the sound absorption function has the advantages that the plenum chamber with the purification function, the disinfection function and the sound absorption function is used for replacing the section with the purification function, the section with the disinfection function and the section with the sound absorption function in a combined air treatment unit, the length of the combined air treatment unit is reduced, the height of a machine room is sufficiently used, and the purification and disinfection device and the sound absorption materials are reasonably combined and arranged in the plenum chamber body. When the plenum chamber with the purification function, the disinfection function and the sound absorption function is applied, the size of the combined air treatment unit can be reduced, and the airflow stabilizing function, the sound absorption and noise reduction function, the disinfection function and the air purification function are achieved.

The invention relates to a road isolation greening tank and a manufacturing method thereof. The road isolation green tank comprises a greening tank body. A plurality of first plug-in seats, a plurality of second plug-in seats, a plurality of third plug-in seats, a plurality of fourth plug-in seats and a plurality of fifth plug-in seats are arranged in the greening tank body. The first plug-in seats, the second plug-in seats, the third plug-in seats, the fourth plug-in seats and the fifth plug-in seats are spliced to one another to form a plurality of pouring cavities. Cement is poured into the pouring cavities to form the bottom face of the greening tank. Plug-in grooves are formed in the first plug-in seats, the second plug-in seats, the third plug-in seats and the fourth plug-in seats. Fixed greening tank side plates are plugged in the plug-in grooves. Every two adjacent greening tank side plates are fixed through a first clamping mechanism or a second clamping mechanism. The structure is simple, manufacturing is easy, transportation is convenient, installation is easy, the road isolation greening tank can be installed in the middle of a road to isolate lanes in opposite directions or used for isolating motor vehicle lanes from non-motor vehicle lanes and sidewalks, dazzling lamp light formed by intersection of car lamps at night can be blocked, the vehicle traffic safety is improved, and the living quality of people and the city image are improved.

The invention relates to a manufacturing method of a greening groove for isolating a white cement road. The greening groove comprises greening groove bodies, wherein a planting groove is formed in each greening groove body; an air inlet pipe is arranged in each planting groove; two sides of the greening groove are coated with luminous paint; the front ends and the rear ends of the plurality of greening groove bodies are arranged in an aligned manner, so as to form an isolating groove; a fence is arranged on each greening groove body; a lower border of each fence is connected with a fixed part which is arranged in each greening groove body in advance; the borders at two sides of the fence are connected and fixed by bolts respectively; nutrient soil is put into each planting groove; and flowers and plants are planted into the nutrient soil.

The invention belongs to the technical field of water pumps, and particularly relates to a water pump with a noise reduction function. The water pump comprises a mounting plate, a rubber pad is fixedly arranged at the top of the mounting plate, the top of the rubber pad is movably connected with a base, the water pump is welded to the top of the base, the input end of the water pump is electrically connected with an alternating current circuit, a supporting rod is fixedly connected to one side of the top of the mounting plate, the top of the supporting rod is fixedly provided with a movable shaft, the outer part of the movable shaft is fixedly connected with a pressing plate in a sleeved mode, the bottom of the pressing plate is movably connected with the top of the base, a through grooveis formed in the pressing plate, and a fixing pin is movably sleeved in the through groove. The water pump with the noise reduction function is characterized in that the mounting plate, a movable spring and a mounting frame are arranged, buffering and damping effect on the water pump is realized during the working process of the water pump, so that the problem of collision between the water pump and the mounting plate is avoided, the noise reduction function is achieved for the water pump, and the working environment around the water pump is protected.

The invention relates to a manufacturing method for a road isolating greening groove. A greening groove comprises a plurality of greening groove bodies, wherein a planting slot is arranged in each greening groove body; an air entering pipe is arranged in the planting slot; the two sides of the greening groove are coated with luminous paints; the front and rear ends of a plurality of greening groove bodies are arranged in an aligned form, so that an isolating slot is formed; a fence net is arranged on each greening groove body; a lower frame of the fence net is connected with a fixing part preset on each greening groove body; the frames on the two sides of the fence net are respectively fixed and connected through bolts; the planting nutrient soil is put into the planting slot, and then the flowers and plants can be planted.

A fluid distributor body and an associated sanitary shower device containing the fluid distributor body have a cylindrical boundary forming a fluid inlet on an axial input side, and a distributor structure disposed downstream of the fluid inlet for fluid distributing flow conductance of a fluid supplied via the fluid inlet. The distributor structure is provided by at least one perforated distributor plate held on the boundary and having a plurality of passage openings conically tapering in the flow direction. The fluid distributor body and sanitary shower device are useful for sanitary overhead showers, for example.

The invention relates to a road isolation fence with an afforestation tank at the bottom. The road isolation fence with the afforestation tank at the bottom comprises an afforestation tank body and a guardrail, wherein a planting tank is arranged in the afforestation tank body, the guardrail is arranged on the afforestation tank body, an air inlet pipe is arranged in the planting tank, and the two sides of the afforestation tank are coated with luminous paint. The front ends and the rear ends of a plurality of afforestation tank bodies are arranged in an alignment mode, a stand column is arranged in a groove formed between one end of each afforestation tank body and the end, adjacent to the end of the afforestation tank body, of the adjacent afforestation tank body, the guardrails are fixed to the stand columns, or, a lower frame of each guardrail is connected with a fixed part which is arranged in the corresponding afforestation tank body in advance, frames on the two sides of each guardrail are fixedly connected through bolts, nutrient soil for planting is placed into the planting tanks, and flowers and plants can be planted in the planting tanks.

The invention discloses a rainproof muffler comprising a muffler body, a drain ring, a smoke vent and a hoop. The bottom end of the muffler body is provided with an exhaust inlet end; the top end of the muffler body is provided with an exhaust outlet end; the drain ring is in the shape of a sleeve, a plurality of grooves are arranged in the outer wall of the sleeve axially along the sleeve, and the drain ring is provided with an exhaust outlet end; the bottom end of the smoke vent is inserted into the outer wall of the drain ring, and the grooves and the wall of the smoke vent form a water flow passage; the hoop is used for hooping the bottom end of the smoke vent on the drain ring. By the muffler, rainwater can be prevented from entering the inside of an engine, and the muffler is simple and practical.

The invention discloses a multifunctional guardrail capable of adsorbing and treating PM2.5 haze. The multifunctional guardrail capable of adsorbing and treating the PM2.5 haze comprises a guardrail bracket shell. An air inlet cavity, a purifying cavity, an air exhaust cavity, a purifying cavity and an air inlet cavity are formed in the guardrail bracket shell from right to left, an air inlet fanis arranged in the air inlet cavity, and an air inlet corresponding to the inlet end of the air inlet fan is arranged on the front end surface of the guardrail bracket shell; and an air exhaust fan isinstalled in the air exhaust cavity, an air exhaust opening corresponding to the outlet end of the air exhaust fan is formed in the rear end surface of the guardrail bracket shell, the air inlet endof the purifying cavity communicates with the air inlet cavity, the air outlet end of the purifying cavity communicates with the air exhaust cavity, and a purifying filtering device for purifying thepolluted air is installed in the purifying cavity. The multifunctional guardrail capable of adsorbing and treating the PM2.5 haze has all the functions of an ordinary guardrail, has the ability to prevent and treat the PM2.5 haze, and has wide application range, and is further applicable to air pollution of industrial and mining enterprises.

The invention relates to a modified zeolite powder inorganic environment-friendly building coating and a preparation method thereof. The modified zeolite powder inorganic environment-friendly building coating comprises the following components in percentage by weight: 15%-20% of light calcined magnesia powder, 5%-10% of magnesium sulfate heptahydrate, 35%-45% of modified zeolite powder, 20%-25% of water, 10%-15% of heavy calcium carbonate, 0.5%-1.0% of an additive, 0.3%-0.5% of fibers, 0.3%-0.5% of hydroxypropyl methyl cellulose and 0.3%-0.5% of redispersible rubber powder. The modified zeolite powder and the low-quality light calcined magnesia are adopted as main raw materials to prepare the inorganic environment-friendly building coating, a base material is an inorganic cementing material, and the inorganic environment-friendly building coating does not contain an organic solvent, does not contain formaldehyde, does not mildew and does not pollute the environment and has the advantages of being good in construction performance, high in bonding strength, fireproof, capable of adsorbing formaldehyde and capable of adjusting indoor humidity.

The invention discloses a bridge expansion joint dustproof seepage-proof adhesive which comprises a modified asphalt cement, a base cloth, a high-temperature-resistant polyethylene (PE) film and a high-temperature-resistant PET silicone oil film, the modified asphalt cement is dip-dyed on the base cloth, the high-temperature-resistant polyethylene film is located on the lower surface of the base cloth, and the high-temperature-resistant silicone oil film is located on the upper surface of the base cloth. The modified asphalt cementing material is prepared from the following raw materials in parts by weight: 50 to 60 parts of matrix asphalt, 4 to 10 parts of SBS (Styrene Butadiene Styrene), 15 to 25 parts of rubber powder, 2 to 5 parts of petroleum resin, 13 to 18 parts of extract oil and 0.05 to 0.15 part of stabilizer, the rubber powder is 20-40-mesh desulfurized rubber powder, the stabilizer is a sulfur-containing stabilizer, the extract oil is furfural extract oil, and the petroleum resin is C9 petroleum resin.

The invention belongs to the field of building materials, and particularly relates to a wall-sprayed building material and an application method thereof. The wall-sprayed building material is prepared from the following materials in parts by weight: 25 parts of lead-zinc iron tailings micro powder or steel slag, 20 parts of cement, 20 parts of polyphenyl granule or vitrified beads, 20 parts of industrial waste lye, 10 parts of activated Al2O3 and 5 parts of crystal nuclein. According to the wall-sprayed building material and the application method thereof, a green building material with thermal insulation, fire protection, moisture absorption and noise reduction is prepared by raw material selection and proportion determination and is applied to a wall building, the production process is green and environmental-friendly, the production line occupies less land, loading, producing and packaging are all automatically controlled, employed people are less, production efficiency is high, a prepared wall structure has the performances such as integrality, shock resistance, crack resistance, sound insulation, flexibility and the like which current wall materials like building blocks, ribbon boards and the like do not have, and the wall-sprayed building material belongs to a multi-functional composite integrated wall material.

The invention discloses an air conditioner unit heat preservation panel with a sound attenuation function. The air conditioner unit heat preservation panel with the sound attenuation function comprises a perforated sound absorbing plate, a glass wool layer, an inner metal plate, a heat preservation layer and an outer metal plate which all are sequentially stacked from interior to exterior. The perforated sound absorbing plate is provided with micropores which are evenly distributed, the hole diameters of the micropores are 0.5mm-1.0mm, and the percentage of holes of the perforated sound absorbing plate is 1%-3%. The thickness of the inner metal plate and the thickness of the outer metal plate are identical. The thickness of the perforated sound absorbing plate is 0.5%-4% of the thickness of the glass wool layer. The thickness of the outer metal plate is 0.25%-4% of the thickness of the heat preservation layer. The perforated sound absorbing plate faces a noise source, the noise is absorbed by the micropores and the relatively thick glass wool layer, and the noise can be greatly weakened; the heat preservation layer plays a very good role in separating a cold bridge and preserving heat, and the combination of the perforated sound absorbing plate and the heat preservation layer achieve functions of noise reducing and heat preserving at the same time; and in addition, by means ofa first separation layer and a second separation layer which have certain thicknesses, the heat preservation and noise insulation effects of the air conditioner unit heat preservation panel can be more excellent.

The invention provides shower door assembly having frame reinforcing and noise reducing functions. The shower door assembly comprises: a first frame and a second frame sleeved outside the first frame; the first frame comprises a bottom wall and two parallel side walls extending from the bottom wall, and the bottom wall and the two parallel side wall together define a first hollow cavity with an opening; the second frame comprises a bottom wall and two parallel side walls extending from the bottom wall, and the bottom wall and the two parallel side wall together define a second hollow cavity with an opening; the opening of the first hollow cavity faces the opening of the second hollow cavity; and the shower door assembly further comprises at least one connecting element, the connecting elements are elastic, and the dimension of each connecting element in at least one direction is greater than the distance of the two side walls of the first frame. The elastic connecting elements can enable the two side walls of the first frame to expand outward under the action of elastic forces, so the two side walls of the first fame abut against the two side walls of the second frame, and then fixation and noise reduction are achieved.