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75results about How to "Work quietly" patented technology

Humidifier

The invention aims to provide a humidifier with low working noise and a large vapor diffusion area. The humidifier comprises a case on which a water storing cavity, an air inlet and an air outlet are formed, wherein the air inlet and the air outlet are communicated through an air channel which is provided with a fan; an ultrasonic atomization device and a heating and vaporizing device are arranged in the case; the heating and vaporizing device consists of a heating water tank, a vaporizing cavity which is formed above the liquid level of the heating water tank, and an electric heating element; the ultrasonic atomization device consists of an ultrasonic water tank, an ultrasonic generating device and an atomization cavity which is formed above the liquid level of the ultrasonic water tank; the heating water tank and the ultrasonic water tank are communicated with the water storing cavity through the water channel; and the atomization cavity and the vaporizing cavity which serve as a part of the air channel are connected in series with the air channel. Provided with the ultrasonic atomization device and the heating and vaporizing device simultaneously, the humidifier works more quietly due to the unique air channel, the vapor diffusion area is enlarged under the condition of the same energy consumption, the practicability of the humidifier is improved, and requirements of customers are met.
Owner:FOSHAN JINXINGHUI ELECTRICAL APPLIANCE

High-efficiency dissolved air flotation system

The invention relates to a high-efficiency dissolved air flotation system which comprises an air flotation tank, a slag scraper, a slag discharge device, a water outlet device and an air-liquid mixing pump water inlet pipe, wherein the slag scraper, the slag discharge device and the water outlet device are arranged in the air flotation tank; the air-liquid mixing pump water inlet pipe is led out from the tail end of the air flotation tank, the air-liquid mixing pump water inlet pipe is provided with an air inlet pipe and connected with an air-liquid mixing pump and a microbubble generator through an air-liquid mixing pipe; a high-pressure saturated dissolved air water pipe led out from the microbubble generator and an external sewage inlet pipe are communicated with a dissolved air releaser positioned on the tail end of the water inlet pipe of the air floatation tank through a T-shaped mixer. Compared with the prior art, the high-efficiency dissolved air flotation system has the beneficial effects that dissolved air generated through the system is good in water stability and high in bubble density, microbubbles with grain diameters of about 5 micrometers and generated through the system are more easily adhered to suspended substances and oil droplets which are contained in sewage and a better removing effect can be achieved because the dissolved air ratio of dissolved air water inside the system can achieve 30%-35% and is simple in structure, easy to debug, stable in operation, stable and reliable in operation, conserved in energy, reduced in consumption and high in automation degree.
Owner:辽宁华霆环保科技有限公司

Air purifier installed on ordinary street lamp pole

The invention relates to an air purifier installed on an ordinary street lamp pole. The air purifier comprises a street lamp pole, a cylinder-frame-shaped support arranged in match with the street lamp pole, a filtering mechanism and a power source mechanism. The filtering mechanism is arranged on the support in a sleeving mode. The filtering mechanism comprises a collector mechanism, a generation electrode mechanism and a filtering mesh, wherein the collector mechanism, the generation electrode mechanism and the filtering mesh are sequentially arranged from inside to outside. The filtering mechanism is sleeved with an air inlet hood. The support is fixedly arranged on the street lamp pole, and the street lamp pole is evenly provided with air holes. The filtering mechanism is connected with the power source mechanism through a wire. When the air purifier works, external air required to be purified enters the air purifier through the air inlet hood under the action of ionic wind generated by a generation electrode pole and is filtered by the filtering mesh firstly, then germ, formaldehyde and other harmful matter are oxidized or decomposed by plasma generated by the generation electrode pole, and particles are absorbed by collection electrode pieces along with electric charges; the collection electrode pieces can collect dust, killed cell debris and other harmful matter, the filtered air is discharged out of the air holes evenly distributed in the lower portion of the street lamp pole, and purifying processing is achieved.
Owner:HEFEI UNIV OF TECH +1

Adjustable-speed noise reduction electric drill

The invention discloses an adjustable-speed noise reduction electric drill, which comprises an electric drill body. An electric drill bit seat is arranged at the head of the electric drill body, and an electric drill bit is arranged on the electric drill bit seat. The adjustable-speed noise reduction electric drill is characterized in that the electric drill bit seat is connected with a rotating motor through a rotating shaft, the rotating motor is arranged inside the electric drill body and connected with a resistance-type rotary speed controller, the resistance-type rotary speed controller is connected with a control switch arranged on a handle of the electric drill body, a silencer connected with the rotating motor and the resistance-type rotary speed controller is further arranged inside the electric drill body, a cooling device connected with the rotating motor is further arranged at the tail of the electric drill body, and a protective cover is arranged outside the cooling device. The adjustable-speed noise reduction electric drill has the advantages that the drilling speed of the electric drill can be adjusted by the resistance-type rotary speed controller, engineering quality is improved, noise in high-speed rotation of the electric drill is reduced by the silencer, and a quieter working environment is created for people.
Owner:黄正兴

Intelligent temperature-control semiconductor cold-compress instrument

An intelligent temperature-control semiconductor cold-compress instrument is composed of a water cooling device, a heat-conducting bottom plate and a semiconductor refrigerating plate. The semiconductor refrigerating plate is arranged on the heat-conducting bottom plate, the refrigerating surface of the semiconductor refrigerating plate is attached to the heat-conducting bottom plate, and water cooling heads of the water cooling device are arranged on the heat-dispersing surface of the semiconductor refrigerating plate. According to the intelligent temperature-control semiconductor cold-compress instrument, the semiconductor refrigerating plate serves as a cold source, and an operator can control the working state of the cold-compress instrument through a human-computer interaction interface, so that the effect that the cold-compress temperature and time are adjustable is achieved. A temperature sensor is used for precisely controlling the cold-compress temperature. A cold-compress patch part of the cold-compress instrument is smaller in size and is attached to surface skin of an affected part through a silica gel sticking patch, and the advantages of conveniently observing the skin condition, meeting the requirement of small wound cold compress and the like are achieved. The cold-compress instrument does not need an external power supply and can be applied to hospital treatment and outdoor on-site rescue.
Owner:SOUTHEAST UNIV

Dried blood spot puncher and punching method thereof

The invention relates to the technical field of punchers, in particular to a dried blood spot puncher and a punching method thereof. The dried blood spot puncher comprises a workbench, wherein a driving assembly and a punching assembly are arranged on the workbench; a test tube tray is in driving connection to the driving assembly; the punching assembly comprises a punching punch, a punching upperdie and a punching lower knife which are sequentially distributed from top to bottom; a gap is reserved between the punching upper die and the punching lower knife and is used for placing a blood spot acquisition card; a first punched hole is formed in the punching upper die; a second punched hole is formed in the punching lower knife; a punching needle is fixed on the punching punch and is in sliding fit with the inner wall of the first punched hole; the bottom end of the punching needle is in shearing fit with the second punched hole; and an air hole is formed in the central axis of the punching needle. After the dried blood spot puncher is used for punching, blood sheets can be blown into test tubes, and the blood sheets falling into the test tubes cannot fly out of the test tubes dueto the influence of air flow; and the dried blood spot puncher has the advantage of being quiet during working, is efficient and energy-saving, and is suitable for being used in medical places.
Owner:江苏善久精密工业有限公司

Bicycle vibration energy conversion mechanism and bicycle adopting same

The invention relates to a bicycle vibration energy conversion mechanism and a bicycle adopting the same. The bicycle vibration energy conversion mechanism comprises a force transfer mechanism and a shell used for being arranged on a fixed frame of the bicycle, wherein one end of the force transfer mechanism is in transmission connection with a swing frame, capable of vertically swinging, of the bicycle; the other end of the force transfer mechanism is in transmission connection with a swing arm which is rotatably matched with the inner wall of the shell and is suitable for the swing arm to carry out reciprocating swinging; an arc-shaped surface tooth at the lower end of the swing arm is in transmission connection with an input gear which is located on the lower part and is rotatably matched with a fixed shaft; the input gear is in transmission connection with the inner end of a clockwork spring at the rear side by a ratchet wheel mechanism; the outer end of the clockwork spring is in transmission connection with a driven gear on a rotating shaft in a matching way by utilizing a bearing and a one-way clutch provided with gear teeth on the outer side face; the driven gear is suitable for being in transmission connection with the rotating shaft; and the end part, stretching out of the shell, on the rotating shaft is suitable for being fixedly connected with a chain wheel used for driving a driving wheel of the bicycle. The bicycle vibration energy conversion mechanism is capable of accumulating vibration energy and then outputting the vibration energy to wheels so as to drive the bicycle to advance.
Owner:龚天波

Air opening device and air conditioner unit

The invention provides an air opening device and an air conditioner unit. The air opening device comprises a shell and a noise reduction cover. An air cavity is formed in the shell; an air inlet and an air outlet communicating with the air cavity are formed in the shell; the noise reduction cover is arranged in the air cavity and is located between the air inlet and the air outlet; and a noise reduction hole is formed in the noise reduction cover and is used for circulating an airflow from the air inlet to the air outlet and absorbing noise. By applying the technical scheme of the invention, the noise reduction cover is arranged in the air cavity of the shell, so that the airflow from the air inlet to the air outlet passes through the noise reduction cover; and the noise reduction hole onthe noise reduction cover has a function on circulating the airflow, and can be used for absorbing noise spread from the air inlet to the air outlet at the same time, so that motor noise, fan noise and airflow noise spread through an air pipe and secondary noise produced by airflow circulation in an air supply system of an air conditioner unit are effectively eliminated, the air supply noise of the air conditioner unit is effectively reduced, and people can work and take a rest under the quiet and healthy environment.
Owner:GREE ELECTRIC APPLIANCES INC

Variable-frequency range hood and variable-frequency control method thereof

The invention provides a variable-frequency range hood. The variable-frequency range hood comprises a fan motor, a motor power supply module and a power supply plate; the power supply plate is provided with a fan motor power supply interface; the variable-frequency range hood is characterized by further comprising a controller and a storage module which are supplied with power by the power supplyplate; the storage module is used for storing data which is to be read by the controller; the motor power supply module comprises a mains supply and a frequency converting module, wherein the frequency converting module is used for converting the frequency of the mains supply into a specified frequency under the control of the controller. The variable-frequency range hood provided by the inventionhas the advantages that the range hood realizes frequency conversion by virtue of the frequency converting module which is combined with the mains supply; relatively power-wasting speed regulating windings need not to be connected in series for speed regulation in a frequency conversion process; a relatively high frequency conversion efficiency is realized; moreover, the frequency can be converted rapidly to realize the regulation of the range hood within a larger rotating speed range, so that the requirement of small-air-volume soup cooking of a user and the requirement of a high-rotating-speed large air volume for a public flue in stir-frying can be satisfied; under a severe working condition, the rotating speed of the motor can be greatly regulated in order to prevent escaping of the smoke; and under a less-smoke condition, the variable-frequency range hood can run at a relatively low frequency, thereby reducing the energy consumption of the overall range hood and improving the user experiences.
Owner:NINGBO FOTILE KITCHEN WARE CO LTD

Hopper type mucking loader for narrow-roadway mine shaft

The invention relates to a hopper type mucking loader for a narrow-roadway mine shaft. The hopper type mucking loader comprises a traveling chassis, a cab, an ore conveying device, a retractable shovel opening, a control unit and a working device, wherein the cab, the ore conveying device, the retractable shovel opening, the control unit and the working device are mounted on the traveling chassis. The front end of the ore conveying device and a frame of the traveling chassis are hinged together, the rear end of the ore conveying device is supported by two synchronously-telescoping hydraulic cylinders, the retractable shovel opening is mounted at the front end of the ore conveying device, the working device is positioned on the frame of the traveling chassis, the control unit is mounted in the cab, the input end of the control unit is connected with a handheld operation handle, and the traveling chassis, the ore conveying device, the retractable shovel opening and the working device are connected with the output end of the control unit. The hopper type mucking loader for the narrow-roadway mine shaft has the advantages that ore conveying efficiency is improved, service life of the mucking loader is prolonged, traveling and position transferring of the mucking loader in a narrow roadway are facilitated, an operator can observe working sites conveniently, and the cab can be distant from the mucking loader, so that working comfort level is improved.
Owner:烟台智联科创矿山设备有限公司

Rotational flow mercury adsorbent injection device

The invention belongs to the relevant technical field of mercury control in coal-fired flue gas, and discloses a rotational flow mercury adsorbent injection device. The device comprises a main injection barrel and two rotational flow impellers. The main injection barrel comprises a straight line section, a nozzle and a contraction section for connecting the straight line section with the nozzle. The contraction section is in a conical shape, the opening diameter of the end, connected with the straight line section, of the contraction section is larger than the opening diameter of the end, connected with the nozzle, of the contraction section, the two rotational flow impellers are stacked to the straight line section, air entering the straight line section form direct flow air and rotational flow air after passing through the rotational flow impellers, the direct flow air and the rotational flow air are mixed to drive a mercury adsorbent entering the containing cavity to enter the contraction section and accelerated through the contraction section and then enter the nozzle, and the nozzle is used for injecting the mercury adsorbent into a flue to be mixed with smoke gas in the flue for mercury adsorption and removal. The mixed gas is accelerated through the contraction section, the contact probability of the mercury adsorbent and smoke gas is increased, and the mercury adsorption efficiency is improved.
Owner:HUAZHONG UNIV OF SCI & TECH

Mobile beacon generating set

The invention discloses a mobile beacon generating set. The mobile beacon generating set comprises a container body, a generating set, an illuminating beacon and a trailer, wherein the container body is mounted at the top of the trailer; the generating set is placed in the container body; the bottom of the illuminating beacon is fixed to the front end of the inner part of the container body; a skylight is formed in the top of the container body; the illuminating beacon penetrates through the skylight; the container body is muted; the illuminating beacon comprises a base, a telescopic rod, a main supporting frame and an illuminating assembly; the base is connected with the telescopic rod through arranging a hydraulic steering device; a hydraulic telescopic device drive is arranged on the telescopic rod; the main supporting frame is located at the top end of the telescopic rod; and the illuminating assembly comprises an illuminating projection lamp, a hydraulic mechanism, a first external gear, a second external gear, an inner gear and a step motor. The mobile beacon generating set disclosed by the invention aims to solve the problems that conventional mobile generator illuminating equipment is poor in regulating ability, and illuminating adjustment is time-consuming and labor-consuming.
Owner:广东宾士动力科技有限公司

Reflector cup sputtering control host box with noise elimination function

The invention discloses a reflector cup sputtering control main case with a noise elimination function. The case comprises a case body, a power supply interface, a heat dissipation opening, a noise elimination device, I/O interfaces, serial ports, an air inlet, headphone jacks, machine bases, a noise elimination sponge panel, a noise elimination interlayer, a fixed steel plate, set screws, a Sono noise eliminator, a noise elimination suction cup, a connecting rack and a noise elimination computer core. The noise elimination device is arranged on one side of the computer case, the noise elimination sponge panel is arranged on one side of the noise elimination device, a sponge is made of an EVA material is resistant to high temperature and can filter and absorb part of noise generated by the case, the Sono eliminator is arranged on the interlayer of the elimination device, the principle applies a so-called ANC active noise reduction technology built by BOSE, when the case works to generate the noise, the eliminator can generate a sound opposite to the noise for superposition so as to eliminate the rest noise obtained after sponge absorption, the case can work more quietly, use is more comfortable, the computer case is convenient to operate, stable and firm, and all components are flexible in connection.
Owner:JIANGSU YITA NEW MATERIAL TECH
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