64results about How to "To achieve the effect of silence" patented technology

The invention belongs to the technical field of artificial oxygen input equipment, and relates to a disposable sterile PP (polypropylene) humidification bottle and a manufacturing process thereof. The humidification bottle comprises a bottle body and a bottle cover installed on the upper end of the bottle body, wherein an oxygen input pipe and an oxygen output pipe communicated with an inner cavity of the bottle body are arranged at the upper side of the bottle cover, the oxygen input pipe is extended to the bottom of the bottle body and a gap is formed between the oxygen input pipe and the bottom of the bottle body, both the ends of the oxygen input pipe and the oxygen output pipe at the upper side of the bottle cover are provided with end caps which are easily broken, an air filtering device is arranged at the lower end of the oxygen input pipe, and humidification liquid for humidifying oxygen is filled in the bottle body and accounts for 60-80% of the capacity of the inner cavity of the bottle body. The manufacturing process of the humidification bottle comprises the steps of: producing purified water; manufacturing the bottle cover with the oxygen input pipe and the oxygen output pipe, a bottle body, a sleeve, an air filtering device and a dustproof protective sheath; sterilizing at high temperature; and packaging and warehousing for future use, and the like. The manufacturing process is simple and practical, and the product is low in noise, free from nose irritation, simple, safe and healthful in structure and suitable for the use as a disposable humidification bottle for patient oxygen inhalation.

The invention belongs to the technical field of well lids for municipal engineering and particularly relates to an anti-theft mute well lid used for municipal engineering. The anti-theft mute well lid comprises a well wall, an adjusting and clamping mechanism and a balance adjustment mechanism, wherein the balance adjustment mechanism is mounted on a boss of an inner circle surface of the well wall, and the adjusting and clamping mechanism is mounted on the upper side of the balance adjustment mechanism; the anti-theft mute well lid has functions of theft prevention, well lid height adjustment and well lid balance adjustment. The anti-theft mute well lid has the benefits that clamping bars extending out of adjusting grooves in an adjusting casing can be inserted into the adjusting grooves in the well wall, have the functions of limiting vertical motion and rotation motion of the adjusting casing and a top lid and prevent the well lid from being lifted up easily. The purpose of adjusting telescoping of a clamping block by rotating an adjusting shaft with an auxiliary tool inserted into a lock hole in the adjusting shaft is achieved.

The invention relates to a front-mounted clutch structure device. The clutch structure device comprises a device body, wherein the device body comprises a clutch mechanism, a transmission mechanism for pushing the clutch mechanism and a motor for driving the transmission mechanism; the motor comprises a motor body and a worm; the transmission mechanism comprises a stud, an elastic piece wound around the stud and a clutch transmission push rod, wherein the clutch transmission push rod comprises a limiting hole, the elastic piece comprises a first leg end and a second leg end, the first leg endis buckled on the worm, and the second leg end penetrates through a limiting hole in the clutch transmission push rod. According to the clutch structure device, when the motor rotates, the worm rotates to drive the first leg end of the elastic piece to move, the elastic piece rotates around the stud to further drive the second leg end to move, the second leg end pushes the clutch transmission pushrod to move so as to push the clutch mechanism, so that the structure the mute effect can be achieved, moreover, the motor with the worm, the stud and the elastic piece are simple in assembly, the production efficiency can be improved, and the cost is reduced.

A micro fluid control device comprises a piezoelectric actuator and a shell. The piezoelectric actuator is provided with a suspension plate, an outer frame, a support and a piezoelectric ceramic plate. The suspension plate is in a square form and is provided with a first surface and a second surface, and the second surface is provided with a convex part. The outer frame is arranged outside the suspension plate in a surrounding mode and is also provided with a first surface and a second surface. The areas except the second surface of the outer frame and the convex part of the second surface ofthe suspension plate are all coplanar. The shell comprises a gas collection plate and a base. The gas collection plate is of a frame structure with a holding space. The base is formed by connecting agas inlet plate and a resonantor and is arranged in the holding space so as to close the piezoelectric actuator. A glue layer is arranged between the second surface of the outer frame of the piezoelectric actuator and the resonantor of the base, so that a needed depth of a compression cavity is maintained between the piezoelectric actuator and the resonantor.

The invention relates to a permanent magnet motor rotor and a manufacturing method thereof. The permanent magnet motor rotor comprises a rotor core and magnetic steel fixed to the outer circumference of the rotor core. Rotor end covers are fixedly connected with the two ends of the rotor core. The rotor core is formed by first stamped steel and second stamped steel in a laminated mode, and the first stamped steel and the second stamped steel are manufactured in a punched mode. Each rotor end cover comprises an end plate and a magnetic steel positioning part fixedly connected with the end plate, each magnetic steel positioning part is arranged on the outer circumference of the corresponding end plate and fixedly provided with bosses used for identifying the axial position of magnetic steel and positioning ribs used for positioning the radial position of the magnetic steel, and the bosses and the positioning ribs are uniformly distributed on the circumferences of the magnetic steel positioning parts. The permanent magnet motor rotor is adopted for a freezer compressor, so that the rotor speed can be adjusted at will, refrigerating capacity of the compressor can be output, and the purposes of rapid refrigeration and low-speed refreshment of a freezer can be achieved. The permanent magnet motor rotor has the advantages of being high in efficiency, low in noise, suitable for volume production and the like.

The invention discloses a low-noise air purification device convenient to install. The device comprises a base, wherein mounting plates are welded on the two sides of the top of the base, a shell withthe opening structure top is clamped between the two mounting plates, a sealing cover is connected to the top of the shell through a hasp, a rectangular opening is formed in one side of the shell, aflow diverting grid plate is clamped inside the rectangular opening, and four vertical guide rails are connected to the inner walls of the two sides of the shell through bolts. According to the device, a filter element is inserted into the shell through the guide rails, so that the filter element of the air purification device can be pulled out and cleaned or replaced by removing the sealing cover, the air purification device is simple and convenient to install, an air inlet is divided by a drainage plate, so that sound of a fan can be reduced, meanwhile, the fan is located inside a noise reduction cover, the operation sound of the air purification device can be further reduced, the mute effect is achieved, and the air purification device is prevented from affecting resting of people.

The invention relates to a silence hot water pot. The silence hot water pot comprises a pot body, wherein the inner wall of the pot body is coated with a layer of hydrophobic coating; the hydrophobic coating is prepared from the following raw materials in parts by weight: 23 to 24 parts of N-methyl pyrrolidone, 21 to 24 parts of methylbenzene, 13 to 24 parts of titanium oxide, 12 to 16 parts of butanone, 4 to 8 parts of dimethylformamide, 2 to 6 parts of cyclohexanone, 0.5 to 1.5 parts of diacetone alcohol and 0.1 to 0.5 part of carbon black. According to the silence hot water pot disclosed by the invention, the inner wall of the pot body is coated with the layer of hydrophobic coating, so that the conditions that bubbles are attached to the inner wall of a pot container in the heating process of water, and noises are generated due to breaking of the bubbles after expansion are avoided, and a silence effect is realized.

The embodiment of the invention discloses an air purifier which comprises an air exhaust device, an energy charging cavity and a dust removal cavity; the energy charging cavity communicates with the dust removal cavity; a gas inlet is formed in the energy charging cavity; a gas outlet is formed in the dust removal cavity; the air exhaust device communicates with the gas outlet; the air exhaust device is used for exhausting air in the dust removal cavity; an ultrasonic head, which is used for charging kinetic energy to dust in air in the energy charging cavity, is arranged in the energy charging cavity; at least two first electrodes which are separately used for adsorbing dust in air in the dust removal cavity are arranged in the dust removal cavity; and electrical properties of the at least two first electrodes are different. The embodiment of the invention further discloses an air purifying method which comprises the following steps of: applying ultrasonic waves to dust in to-be-purified air for charging kinetic energy to dust; and applying voltage to dust with kinetic energy, and adsorbing the dust onto the first electrodes. With the adoption of the embodiment of the invention, an air purifying rate is high, and secondary pollution is not caused.

The invention discloses a silent portable refrigerator which comprises a shell, a water tank, a cooling water groove and a freezer. The shell is provided with a side door and a top cover. A refrigerating chamber is formed in the shell. A refrigerating bin of an interlayer is arranged on the upper portion of the shell. The water tank and the cooling water groove are arranged in the refrigerating bin. A water inlet pipe and a cooling pipe are arranged between the cooling water groove and the water tank. The water inlet pipe is provided with a water pump. The cooling water groove is provided with the freezer. The freezer comprises a motor fixed to the outer wall of the cooling water groove, a rotating disc fixed to an output shaft of the motor, cold working media distributed on the circumference of the rotating disc, and a U-type permanent magnet located above the rotating disc. The permanent magnet is fixed to the cooling water groove through a support, and the cold working media penetrate through the portion between two poles of the permanent magnet. The refrigerator is small in size and portable; meanwhile, the novel refrigerating principle is adopted, and therefore noise interference is avoided.

The invention discloses a gear transmission structure with mute and low abrasion. The gear transmission structure with mute and low abrasion comprises an output shaft and an input shaft, a gear ring is connected to the output shaft, the gear ring is of an annular structure, and a plurality of evenly distributed output gear teeth are arranged on the inner wall of the gear ring; an input gear is connected to the input shaft, and the input gear meshes with three same planet gears, the three planet gears mesh with the gear ring simultaneously, the gear ring is externally sleeved with a sound proof box, through holes are formed in the two sides of the sound proof box correspondingly, and the input shaft and the output shaft extends out of the through holes correspondingly; both the input gear and the planet gears comprise hubs, wheel discs, gear teeth and gear grooves, an annular oil tank is arranged outside of each hub, the annular oil tank is nested in the corresponding wheel disc, and an oil injecting opening is formed in the surface of each annular oil tank, a plurality of small holes are evenly distributed on the outer wall of the ring face of each annular oil tank, the small holes are connected with the gear grooves through wee oil ducts. The gear transmission structure with mute and low abrasion can achieve the mute effect while abrasion is lowered and is a good choice for transmission gears.

The present invention relates to a low-noise air discharging device for a dust collector. The collector comprises the following components: an inner housing, which is internally provided with a receiving chamber for accommodating a dust collector motor; an outer housing, wherein a partition plate is disposed between the outer housing and the inner housing; wherein an inner housing side wall, an outer housing side wall and the partition plate are all provided with air discharging holes; an inner wall of the outer housing, the surface of the inner housing and the surface of the partition plate are all provided with sound-absorbing layers. The low-noise air discharging device for the dust collector is provided with a double silencer chamber for double sound absorption, in order to achieve theeffect of silence; at the same time, the air discharging effect is good, and the discharged gas and the heat generated by the motor can be quickly discharged.

A piezoelectric actuator is suitable for a miniature fluid control device. The piezoelectric actuator comprises a suspension board, an outer frame, a plurality of brackets and a piezoelectric ceramicboard. The suspension board is square-shaped and has a first surface and a corresponding second surface. The second surface is provided with a projection. The outer frame is arranged outside the suspension board in a surrounding manner and has a first surface and a corresponding second surface. Furthermore the second surface of the outer frame and the second surface of the suspension board are coplanar except for the outer area of the projection. The bracket is connected between the suspension board and the outer frame and has a length of 1.11mm to 1.21mm and a width of 0.2mm to 0.6mm. The piezoelectric ceramic board has an edge length which does not exceed that of the suspension board, and furthermore adheres to the first surface of the suspension board.

The invention discloses a wear-resistant mute double-rotor high-speed motor. A sound insulation board is formed by composition of two components according to the proportion of A:B=2:1, and A and B include following components by weight: A component comprises following components by weight: 11-19 parts of nano silica powder, 9-12 parts of nano zinc oxide, 7-10 parts of dimethylacetamide, 3-8 partsof methyl acetate, 10-14 parts of chloroprene rubber, 8-12 parts of tetraethoxysilane, 6-9 parts of amino resin and 30-33 parts of auxiliary materials, and the B component comprises following components by weight: 17-20 parts of base material emulsion, 4-8 parts of anti-freezing agents, 12-19 parts of fillers, 3-9 parts of plasticized resin, 1-4 parts of vapor phase inhibitors, 20-24 parts of curing agents, 19-22 parts of anti-foaming agents and 23-27 parts of film-forming auxiliary agents. According to the motor, the work efficiency is improved, the production cost and the scrap rate are reduced, labor saving and time saving are realized, high efficiency and energy saving are achieved, the steps are simple, and the operation is facilitated.

The invention provides an elastic translational opening and closing structure for furniture. The elastic translational opening and closing structure for furniture comprises a furniture cabinet, a sliding device and a furniture door body. A guiding slide rail is arranged on the furniture cabinet, the sliding device is slidably arranged on the guiding slide rail and is rotatably or swayably connected to the furniture door body, a hinge device is rotatably or swayably on the furniture cabinet, a guide bar is arranged on the furniture door body, and the hinge device is slidably and/rotatably or swayably arranged on the guide bar; the furniture door body is translationally opened and closed on the furniture cabinet by matching the sliding device, the guiding slide rail, the hinge device and theguide bar; an auxiliary closing elastic assembly is also arranged among the furniture cabinet, the hinge device and the furniture door body, one end of the auxiliary closing elastic assembly is elastically connected to an immobile part of the hinge device or the furniture cabinet, while the other end of the auxiliary closing elastic assembly is elastically connected to the immobile part of the hinge device or the furniture door body; and the furniture door body at least generates a closing action force and is automatically closed on the furniture cabinet through the auxiliary closing elasticassembly during closing.

The invention relates to the field of household appliances, in particular to a mute efficient dehumidifier. A mute efficient dehumidifier comprises a shell, an air pipe, a semiconductor piece, a heat insulation piece, a cooling fin, a condenser, a condensation piece, a conical water blocking device and the like, and is characterized in that the air pipe is vertically arranged in the shell, an air outlet is formed in the upper portion of the shell, an air inlet is formed in the side face of the shell, the upper portion of the air pipe is connected with the air outlet, and the cooling fin is arranged on the lower portion of the inner side of the air pipe; a fan is arranged on the upper portion of the inner side of the air pipe, a plurality of semiconductor pieces are attached to the outer side of the air pipe, the heat faces of the semiconductor pieces are attached to the outer side of the air pipe, the other faces of the semiconductor pieces are cold faces, the condenser is attached to the cold faces of the semiconductor pieces, and condensation pieces are arranged on the condenser. By means of the Peltier effect of the semiconductor piece, refrigeration and dehumidification of the semiconductor cold face and the temperature of air subjected to rising treatment of the semiconductor hot face, the semiconductor piece basically does not generate noise, only a fan has a small amount of noise, the noise of the dehumidifier is very small, and the mute effect is achieved; the air treatment efficiency is greatly improved, the efficient dehumidification effect is achieved, and energy is saved.

The invention belongs to the field of plunger air pumps, and particularly relates to a noise reduction and heat dissipation pressurizing plunger air pump which comprises a ventilation shell, an air outlet used for air outlet is formed in one side of the ventilation shell, an air inlet used for air inlet is formed in the other side of the ventilation shell, and a ventilation groove bidirectionally communicating with the air outlet is formed in the position, located on the air outlet side, in the ventilation shell. A pump cavity is formed in the ventilation shell, a continuous air outlet mechanism is arranged in the pump cavity, two pressurization mechanisms are symmetrically arranged in the continuous air outlet mechanism relative to the air outlet, and two mute mechanisms are symmetrically arranged in the continuous air outlet mechanism relative to the air inlet and located at the pressurization mechanisms and close to the air inlet side. The power of the sliding rod sleeve is air pressure, so heat generated between traditional power internal machines can be reduced, no heat is generated in the working process of the air pump, the air pump can continuously convey air through air inlet and outlet of the air one-way valves and the one-way sealing balls on the two sides, and the intermittent working state of a traditional plunger air pump is improved.