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100results about How to "Reduce use noise" patented technology

Dust-removing air purifier with double functions of anion sedimentation and high-voltage electrostatic adsorption

The invention discloses a dust-removing air purifier with double functions of anion sedimentation and high-voltage electrostatic adsorption. The dust-removing air purifier comprises a casing as well as an anion emission needle plate, a stacked high-voltage electrostatic cell, a positive pole filtering body and a fan which are sequentially arranged, wherein anion emission needles which discharge towards the positive pole filtering body and form potential difference with the positive pole filtering body are arranged on the anion emission needle plate, the stacked high-voltage electrostatic cell comprises negative plates and positive plates, an air channel is formed between each negative plate and the adjacent positive plate, each negative plate comprises two insulators with high resistance and high voltage resistance and a conductor which is located between the two insulators and has low resistance, and the positive plates have electrical conductivity and can lead out charges carried by electronegative particles directly contacted with the positive plates in the air channels. According to the dust-removing air purifier, the wind resistance is low, the use noise is small, frequent cleaning is not required, single air purification efficiency is high, bacteria and viruses in air can be killed, the problems about wall blackening and influence on human health are solved, and secondary pollution caused by starting up is avoided.
Owner:DONGGUAN SANDIE ENVIRONMENTAL PROTECTION TECH CO LTD

Intelligent air purifier with multiple filtering layers

The invention discloses an intelligent air purifier with multiple filtering layers. The intelligent air purifier comprises a purifier box body and a remote controller. The intelligent air purifier is characterized in that a display panel, a control panel, an air inlet, an air outlet and an induction region are arranged / formed on / in the purifier box body; a wind shield is arranged at the air inlet; an air inlet gap is formed between the wind shield and the air inlet; a hollow purifying chamber is formed in the purifier box body; filtering layers, a negative-ion generator, an ultraviolet lamp and a fan are arranged in the purifying chamber; the filtering layers sequentially comprise a filter screen made of aluminum alloy, a cold-accelerant filter screen, a filter screen made of honeycomb activated carbon, an antibacterial filter screen, and an HEPA high-efficiency filter screen from outside to inside; a plurality of mounting screws, a power-line hole, a drainage hole and a water storage tank are arranged / formed on / in a rear side plate of the purifier box body. The intelligent air purifier disclosed by the invention has the benefits that the air purifier has low noise, can rapidly respond to smoke, is low in energy consumption, and the high in purifying efficiency, the high in the concentration of negative ions released by the air purifier.
Owner:天津贝罗尼生物科技有限公司

Belt pulley powder metallurgy formulation and process

The invention discloses a belt pulley powder metallurgy formulation. The belt pulley powder metallurgy formulation is composed of the following ingredients (mass percentage): 0.3-0.7% of graphite, 1.5-2.5% of copper powder, 0.6-1.0% of zinc stearate, 0.1-0.3% of sulphur, 0.3-1.5% of nickel powder, 0.3-1.0% of molybdenum powder, and the rest is iron powder; the invention further discloses a process for preparing the belt pulley powder metallurgy formulation. The process comprises the following steps of mixing materials, pressing, sintering, cooling, shaping, removing oil, blasting sands, and blackening. In the formulation and the method, the formulation is reasonable, the belt pulley is proper in hardness, the process is simplified, the production efficiency is high and the production cost is low.
Owner:ANHUI HENGJUN POWDER METALLURGY TECH

A silent lock body with damping

InactiveCN103899145BAct as a buffer resistanceReduce impact soundBuilding locksStart stopEngineering
The invention relates to hardware door lock components, and provides a mute lock body with a damper. The collision sound generated by a lock dog when a door is closed can be reduced. According to the technical scheme, the mute lock body is provided with a box bottom assembly, an inclined lock dog, a reset spring, the damper and a poking peach. The front end of the box bottom assembly is provided with an inclined lock dog hole in the front end, provided with a fixing block, a guide groove and a sliding block in the middle and provided with a damper positioning hole in the rear; the rear end of the damper is provided with a capel; the damper is provided with a clamping ring in the middle and provided with a damping rod in the rear, and the end of the damping rod is provided with a positioning hook; the front end of the damper is fixedly embedded in the capel at the rear end of the inclined lock dog, the middle of the damper penetrates through a guide hole in the middle of the fixing block, and the positioning hook at the rear end of the damper is embedded into the damper positioning hole in the rear of the box bottom assembly; the damper is a wire diameter damper, the inclined lock dog can be driven to move backwards without resistance by rotating the poking peach, and the poking peach needs to overcome buffering resistance of the damper to return, so that it is avoided that the inclined lock dog rapidly returns to the start-stop position under the action of the spring.
Owner:GUANGDONG MINGMEN LOCKS IND

Split type exhaust hood

The invention relates to a split type exhaust hood. Compared with the prior art, the split type exhaust hood solves the defects of high using noise and low reliability. The split type exhaust hood comprises a draught fan (2), a draught fan power supply control box (7), a smoke vent (4), a public flue (9) and an exhaust hood body (1), wherein a switch panel (20) and a main air chamber (3) are arranged on the exhaust hood body (1), the smoke vent (4) and the main air chamber (3) are connected, the draught fan (2) is arranged between the public flue (9) and the smoke vent (4), and the draught fan (2) is connected with the switch panel (20) by the draught fan power supply control box (7). The split type exhaust hood can reduce the using noise and prolong the service life.
Owner:唐伟

Fan module used for server and server

The invention provides a fan module used for a server on the one hand. The fan module comprises a fan backboard (2) and at least one fan bracket (1), wherein each fan bracket (1) is detachably connected with the fan backboard (2) and provided with at least one fan groove (4), the fan brackets (1) and the fan backboard (2) are arranged in a spaced mode, and each fan groove (4) contains a fan module body (3). The invention further provides a server with the fan module on the other hand. The fan module used for the server and the server are provided for at least achieving the effect that vibration generated in the using process of the fan module is reduced.
Owner:DAWNING INFORMATION IND BEIJING +1

Solid thermit jet cutter

The invention discloses a solid thermit jet cutter. The solid thermit jet cutter includes a shell case, a plug, a rapid combustion agent, a cutting agent, a separating sheet, a nozzle and a fuse; the shell case is a paper tube; the plug is made of a high-temperature resistance plastic material or a ceramic material; the high energy cutting agent is a hollow structure compressed by mixed solid powder; a channel is filled with the rapid combustion agent, and a solid dual-grain structure is formed; the straight-flow type nozzle made of a graphite material is arranged on the internal front end of the cutter; the separating sheet is arranged between the nozzle and the cutting agent and the rapid combustion agent; and the fuse is a special hard columnar inflammable material. During cutting, the jet cutter is arranged in a special cutting torch, the fuse is introduced from the nozzle, the rapid combustion agent is ignited after the fuse is ignited, the rapid combustion agent ignites the inner wall of the grain instantly, a high-temperature product is gathered and compressed via the nozzle and then is ejected to fuse and combust a cutting piece locally, and then the high-temperature product is blown down by high-pressure gas, and manual thermit cutting can be achieved. The jet cutter is simple in structure, is easy and reliable to operate, is high in cutting efficiency, is wide in application, and can be used for rapid emergent thermal cutting without electricity, gas, and devices.
Owner:PEOPLES LIBERATION ARMY ORDNANCE ENG COLLEGE

Silent buffer spring bolt structure

The invention relates to a lock body component of a door lock, and in particular provides a silent buffer spring bolt structure. The technical scheme adopted by the invention is as follows: a liner plate, a latch bolt, a bottom box, a sliding block, a dial peach and a buffer block are arranged on the silent buffer spring bolt structure; a rubber gasket is fixedly embedded in front of a tail pin at the tail end of the latch bolt; the latch bolt extends into the bottom box, and the rear part of the latch bolt presses against a reset spring; a buffer cavity is formed in the middle of the bottom box and the buffer block can be embedded in the cavity; a box cover is buckled with the bottom box, the sliding block is embedded in the bottom box, an embedding cavity is formed on the inner side of the front end of the bottom box to embed the tail pin and the rubber gasket at the tail end of the latch bolt, a guide column is arranged on one side of the outer wall at the front end of the bottom box and is embedded with a guide straight groove in the middle of the box cover, and a buffer column is arranged on the other side of the outer wall to match with the buffer block embedded in the bottom box and is embedded into a buffer bent groove formed in the buffer block; and when the latch bolt returns, the latch bolt is influenced by the resistance of the buffer bent groove in the buffer block, and slows down at the tail end of the stroke. Therefore, the silent buffer spring bolt structure disclosed by the invention realizes functions of slow and stable restoration of the latch bolt, and achieves a technical effect of reducing door lock using noise.
Owner:GUANGDONG MINGMEN LOCKS IND

Squeezing juicer convenient to assemble and disassemble

A squeezing juicer easy to clean comprises a motor base provided with a motor and a processing assembly connected with the motor base and is characterized in that the processing assembly comprises an extracting cylinder, a threaded rod and a filter part, the extracting cylinder is connected with the motor base, and the threaded rod is inserted into the extracting cylinder and driven by the motor; the extracting cylinder is conical, the extracting cylinder and the threaded rod are arranged transversely, a feed port, a juice outlet and a residue outlet are formed in the extracting cylinder, the juice outlet is located at the bottom of the head end of the extracting cylinder, the inner wall of the extracting cylinder is arranged obliquely to form a juice outlet channel, the juice outlet channel is communicated with the juice outlet, the residue outlet is formed in the tail end of the extracting cylinder, and the feed port is formed in the upper portion of the extracting cylinder. Processing can be completed just by arranging the extracting cylinder and the threaded rod on the processing assembly, the number of structural parts is small, and the structural parts are convenient to assemble, disassemble and clean; the extracting cylinder is high in space use ratio, the extracting cylinder is arranged to be conical, juice can be output just by means of gravity, and the processing efficiency is high.
Owner:JOYOUNG CO LTD

Multimedia hard disk destroying device

ActiveCN104525329AGood destruction effectReduce use noiseGrain treatmentsDrive motorEngineering
The invention discloses a multimedia hard disk destroying device. The multimedia hard disk destroying device comprises a device body, wherein a feeding hole is formed in the top of the device body and a discharging hole is formed in the bottom of the device body; a crushing mechanism is arranged in the device body; the crushing mechanism comprises a cutting crushing device; the cutting crushing device comprises a main case and a driving motor II; a cutting mechanism is arranged in the main case; the crushing mechanism further comprises a paired roller extrusion device; the paired roller extrusion device comprises an extrusion space which is formed between two mutually-parallel paired roller cutters and used for extruding a hard disk and a driving motor I which is used for driving the paired roller cutters; the extrusion space is located under the feeding hole; the outlet of the extrusion space is engaged with the inlet of the crushing mechanism and an extruded hard disk is conveyed into the crushing mechanism; and the outlet of the crushing mechanism are engaged with the discharging hole so that the crushed hard disk is conveyed out of the device body. The multimedia hard disk destroying device has the advantages of better hard disk destroying effect, lower use noise, higher crushing efficiency and the like.
Owner:重庆懿虹科技发展有限责任公司

Intelligent oxygen generator

The invention discloses an intelligent oxygen generator. The intelligent oxygen generator comprises a main control panel, a blood oxygen detection module and an oil-free compressor, and the blood oxygen detection module and the oil-free compressor are connected with the main control panel respectively; the blood oxygen detection module is used for detecting the blood oxygen concentration of a target user, generating electric signals corresponding to the detected blood oxygen concentration, and sending the electric signals to the main control panel; the main control panel is used for generatingrotation speed adjustment signals corresponding to the electric signals; the oil-free compressor is used for adjusting the rotation speed of a motor according to the rotation speed adjustment signals. According to the intelligent oxygen generator, the rotation speed of the motor of the oil-free compressor in the oxygen generator is adjusted according to the detected blood oxygen concentration ofthe target user, accordingly, the oxygen outlet amount is adjusted, and the aims that energy is saved and using noise of the oxygen generator is lowered are achieved.
Owner:武汉懒蚁科技有限公司

Squeeze type juicing machine simple in structure

ActiveCN106724723ALess functional partsSimple structureStrainersFiltrationEngineering
The invention provides a squeeze type juicing machine easy to clean. The squeeze type juicing machine comprises a machine base provided with a motor and a processing assembly which is connected with the machine base. The juicing machine is characterized in that the processing assembly comprises an extraction canister in a cone shape, a screw rod and a filtration part. The extraction canister is connected with the machine base, the screw rod is inserted into the extraction canister and driven by the motor, the extraction canister and the screw rod are transversely arranged, and the extraction canister is provided with a feeding inlet, a juice discharging outlet and a residue discharging outlet. The juice discharging outlet is formed in the bottom of the head end of the extraction canister, the inner wall of the extraction canister is obliquely arranged and forms a juice discharging channel which is communicated with the juice discharging outlet, the residue discharging outlet is formed in the tail end of the extraction canister, and the feeding inlet is formed in the upper portion of the extraction canister. The processing assembly can complete processing only by arranging the extraction canister and the screw rod, the structural elements are less, the juicing machine is easy to disassemble, assemble and clean, and the space utilization rate of the extraction canister is high; when the extraction canister is arranged into the cone shape, juicing discharging can be completed relying on gravity, and the processing efficiency is high.
Owner:JOYOUNG CO LTD

Hawthorn fruit drying device with charging machine

The invention discloses a hawthorn fruit drying device with a charging machine. The hawthorn fruit drying device comprises a drying room, the charging machine, a plurality of heat transforming systemsand a conveying device, wherein the charging machine is arranged outside the drying room; the heat transforming systems are arranged in parallel above the drying room; the conveying device is positioned in the drying room; a material inlet is formed at the top of one end of the drying room, and a material outlet is arranged at the bottom of the drying room; the charging machine comprises a conveying part arranged at the bottom of one side of the material inlet of the drying room, a lifting part positioned at the end part of the inner side of the conveying part and a pushing part positioned atthe outer side of the lifting part; and the conveying device comprises a support frame, lifting mechanisms symmetrically arranged at both ends of the support frame, and a plurality of conveying mechanisms arranged in parallel on the support frame. The hawthorn fruit drying device with the charging machine has simple structure, energy conservation, environment friendliness, high drying efficiencyand good quality of hawthorn fruits, uniformity of operation in a transport process and no noise pollution, and can realize continuous transfer among transfer devices of different height.
Owner:河南中联热科工业节能股份有限公司

Automatic blanking and code-printing device for multiple cigarette sample inspection items

ActiveCN103057737ARealize automatic random distributionAvoid human errorPackaging cigaretteEngineeringHuman error
The invention discloses an automatic blanking and code-printing device for multiple cigarette sample inspection items. The automatic sample blanking and code-printing device is characterized in that a blanking and code-printing mechanism consists of a left hopper, a right hopper, a left roller, a right roller, a code spraying roller, a photoelectric detector, a code spraying nozzle and a blanking slideway, wherein the left hopper and the right hopper are used for accommodating cigarette samples; the left roller and the right roller are positioned at the lower part of the left hopper and the right hopper; and the blanking slideway is arranged at the lower part of the code spraying roller. The automatic sample blanking and code-printing device has the advantages that the automatic blanking and code-printing of the samples are realized, so that the human errors are avoided, the labour intensity and the working noise is reduced, and the working efficiency is improved. Compared with the prior art, the equipment has a reasonable and compact structure and is small in size, so that the device can be used for three-point inspection of cigarettes, and also can be used for contrast and sequencing inspection of multiple kinds of cigarettes; and therefore, the device is wide in application range, and high in blanking and code-printing efficiency.
Owner:ZHENGZHOU TOBACCO RES INST OF CNTC +1

Magnetic attraction sealing structure of novel door window sash

The invention provides a magnetic attraction sealing structure of a novel door window sash. The magnetic attraction sealing structure comprises a mounting groove located in a door window sash frame, and a movable frame which can stretch out and shrink inwards from the interior of the mounting groove is connected with the mounting groove; a magnetic material block is arranged in the movable frame, and a flexible sealing strip is arranged on the outer side of the movable frame; an inner guide cylinder body is arranged on the movable frame, and the inner guide cylinder body and an outer guide cylinder body mounted on the door window sash frame are sleeved together; and a bolt penetrates the inner guide cylinder body, the head end of the bolt is fixedly connected to the head end of the outer guide cylinder body, and a spring is arranged between the bolt and the inner guide cylinder body. When a magnetic attraction sealing device is used, the device is used on a door wind outer frame and a door window sash fixed frame. Due to existence of the inner guide cylinder body and the outer guide cylinder body, the motion guide performance of the movable frame body is good, durable performance of a whole door window is improved, and the use noise is low. Due to existence of a flexible protection piece strip, the aim that after air bends, the air normally flows is achieved. The airtight performance, watertight performance, sound insulation performance, heat preservation performance and durable performance are improved.
Owner:张曰明

Novel turbo-type pneumatic submersible pump with multiple nozzles

The invention relates to a novel turbo-type pneumatic submersible pump with multiple nozzles, which comprises a pump body, a turbo casing, a turbo cover plate, a rotary shaft, a turbo, a supporting device, a sealing socket, a water wheel, a pump cover and an anti-fouling seat. A water outlet joint is arranged on the pump body, an annular air inlet nozzle is fixedly connected to the lower end face of the turbo casing, an air inlet pipe is fixedly connected to the circumference surface of the air inlet nozzle, a main airflow passage communicated with the air inlet pipe inside the air inlet nozzle circumferentially, N sub airflow passages are uniformly distributed on the main airflow passage in an upward extending manner, the N is the natural number larger than or equal to 2 and smaller than or equal to 6, and nozzles which are communicated with the sub airflow passages and disposed in vent holes on the turbo casing are arranged at the upper end of the air inlet nozzle. The novel turbo-type pneumatic submersible pump with multiple nozzles is long in service life, simple in structure, low in cost and capable of realizing production in batch. Power of the pneumatic submersible pump is increased by the common airflow passage and the multiple nozzles. Noise is lowered by the aid of a silencer. Energy conversion rate is high due to the high-efficiency turbo which is cast precisely integrally. Due to a composite impeller, the pneumatic submersible pump can be adaptable to sewage containing large-particle impurities, and is high in flow and lift.
Owner:CHANGZHOU COLLEGE OF INFORMATION TECH

Electric door and window guide rail with magnetic levitation linkage function

The invention provides an electric door and window guide rail with a magnetic levitation linkage function, and belongs to the field of an electric guide rail for doors and windows. The electric door and window guide rail comprises a motion block, a fixed part, a linear motor driving device, a linkage component and pulleys, wherein the fixed part is resting relatively to a mobile part; the motion block moves in an empty slot of an outer frame guide rail in the fixed part, and the linear motor driving device is arranged on the outer side of the fixed part; the pulleys are fixedly arranged on thetwo sides of the motion block and are in clearance fit to slide in the empty slot of the fixed part; and the linkage component is connected with a driving motion block and a driven motion block of atrack, and thus one motor can drive two doors and windows for linkage moving. The electric door and window guide rail has the advantages of simple structure, easiness in maintenance and high practicality and prevents the fixed part from deforming and linking. Meanwhile, the electric door and window guide rail does not need transmission equipment during electrical moving, so that friction is small,and noise is low.
Owner:区应绍

Multilayer compound type filter of air conditioner air return system for vehicles

InactiveCN107042034AExtended use timeSolve the problem of charge depletionAir-treating devicesDispersed particle filtrationHEPAElectricity
The multi-layer composite filter for the return air system of the vehicle air conditioner disclosed by the present invention comprises a HEPA filter core, a conductive fiber layer, a high dielectric coefficient nonwoven fabric, an insulating outer frame, a DC power supply module, a transformer, an antibacterial nonwoven fabric, and activated carbon Layer and electret melt-blown non-woven fabric, the HEPA filter element is bonded from top to bottom by antibacterial non-woven fabric, activated carbon layer and electret melt-blown non-woven fabric, installed in the insulating outer frame, the The high dielectric constant non-woven fabric is arranged between two conductive fiber layers, the conductive fiber layer is fixedly connected with the insulating outer frame, and the conductive fiber layer is connected to the DC power supply module through the transformer, and the DC power supply module is connected to the power supply in the vehicle. . The present invention adds electric treatment and filtration to the traditional HEPA filter layer, so that particles of 0.1 μm to 0.3 μm that cannot be filtered in the traditional technology can be filtered, and can realize the function of low energy consumption and high-efficiency filtration of the vehicle air conditioner filter.
Owner:NANJING LINGYA AUTOMOBILE TECH RES INST

Respirator driven by low-flow small-sized medical air compressor

The invention relates to a respirator driven by a low-flow small-sized medical air compressor. The respirator comprises a PLC (Programmable Logic Controller) system, an oxygen channel and an air channel; oxygen from the oxygen channel and air from the air channel are mixed by an air-oxygen mixer and then transmitted to a patient; the oxygen channel and the air channel are respectively provided with a first electric control proportional valve, a second electric control proportional valve, a first flow sensor and a second flow sensor which are connected with the PLC system; a low-flow small-sized medical air compressor, the second electric control proportional valve, a Venturi device and the second flow sensor are arranged on the air channel in sequence; and the second electric control proportional valve and the second flow sensor are both connected with the PLC system. In the invention, the low-flow small-sized medical air compressor and the Venturi device are used together for providing air for the air channel of the respirator, therefore, the installation size of the respirator is reduced, use noise, power consumption and cost are reduced, the stable and safe use of the respirator is ensured and the long-term use requirement of patients is met.
Owner:江苏蓝韵凯泰医疗设备有限公司

Low-noise axial flow fan

ActiveCN111140520AReduce use noiseExpand the negative pressure areaPump componentsPump installationsDrive motorImpeller
The invention discloses a low-noise axial flow fan. The low-noise axial flow fan comprises a shell, a fixing frame installed on the shell, a driving motor installed on the fixing frame and a wind wheel installed on a rotating shaft of the driving motor, a rotating drum is rotationally connected to the interior of the shell, the rotating drum is located between the wind wheel and the shell, the rotating drum extends to an air inlet from an air outlet of the shell. a plurality of follow-up blades used for driving the rotating drum and the wind wheel to rotate in the same direction are arranged on the inner wall of the rotating drum, the follow-up blades are spirally arranged and located between an impeller and the air outlet of the shell; and at least four blades are arranged on the wind wheel, arc-shaped bent turbulent flow parts are arranged at the blade tips of the blades, and the bending angle of each turbulent flow part is 1 to 3 degrees. According to the low-noise axial flow fan, the rotating drum, a silencing cavity, a sound absorption structure and a specific blade structure are arranged, so that the use noise is low.
Owner:浙江欧盾风机有限公司

Plasma degerming assembly and refrigerator

The invention provides a plasma degerming assembly and a refrigerator. The plasma degerming assembly comprises a discharging electrode which is arranged on a box inner container of the refrigerator and used for performing discharging ionization processing on air inside the box inner container. According to the technical scheme, high-frequency discharge is achieved through tiny power consumption to modify chemical energy of molecules of harmful gases inside the refrigerator, then the molecules of the harmful gases are decomposed into elementary substance atoms or harmless molecules, removal aiming at some harmful gas is not required, removal is performed on a large amount of harmful gases indistinguishably, vital signs of a large amount of molecules are broken during the discharging process aiming at the harmful bacteria, the harmful bacteria are quickly killed, and convenience of user operation is guaranteed during the integral degerming process.
Owner:HEFEI HUALING CO LTD

Magnetic-levitation wind-driven laser scanning radar

The invention relates to a magnetic-levitation wind-driven laser scanning radar comprising an image processing system, a rotating platform, a fixed platform, a magnetic ring group and a wind-driven heat dissipation device. The image processing system is arranged in the rotating platform arranged above the fixed platform. The magnetic-levitation wind-driven laser scanning radar not only has functions of distance measurement and three-dimensional cloud map drawing but also has advantages of reduced usage noise and long service life.
Owner:SUZHOU UNIV

Program control wall processor

The invention discloses a program control wall processor. The program control wall processor comprises a rack, a storage hopper, a numerical control box, a material-sending pump mechanism, a handheld telescopic pole, a batch head mechanism and a supportive pulley block, wherein a discharge outlet of the storage hopper is connected with the material-sending pump mechanism, one end of the handheld telescopic pole is connected with the material-sending pump mechanism through a discharge hose and the other end is connected with the batch head mechanism. The handheld telescopic pole is provided with a trigger switch and the supportive pulley block is fixedly arranged on one side of the batch head mechanism. By the adoption of a servo motor along with a gear reducer to control feeding, the material-sending pump has the advantages of being high in accuracy, low in noise, smaller size and less weight on the whole, and more convenient in use and operation. By means of pulling a motor windlass together with a wire rope and extruding through spring pressure, a pressed board of the batch head mechanism has the advantages that the structure is simple and reasonable, accessories need not be customized and the cost is low, and the structure is detachable; in addition, damaged parts of the pressed board can be replaced directly and the cost of using is low; the effect of painting walls is very good and highly flat, and the requirements of clients and industry are met.
Owner:陈光

A process of powder metallurgy formula for belt pulley

ActiveCN104759614BSurface Hardness SimplifiedHardness simplifiedTurbinesOther manufacturing equipments/toolsSulfurGraphite
The invention discloses a pulley powder metallurgy formula, which is characterized in that it is composed of the following components in mass percentage: iron powder balance, graphite 0.3-0.7%, copper powder 1.5-2.5%, zinc stearate 0.6-1.0% , sulfur 0.1~0.3%, nickel powder 0.3~1.5%, molybdenum powder 0.3~1.0%; the invention also discloses a process for the powder metallurgy formula of the pulley, the process steps include: mixing, pressing, sintering, cooling, shaping, Degreasing, sandblasting, blackening and other steps. The technical process of the powder metallurgy formula of the belt pulley provided by the invention has reasonable formula, suitable hardness of the belt pulley, simplified process, high production efficiency and low production cost.
Owner:ANHUI HENGJUN POWDER METALLURGY TECH

Damper and water purifier with the same

The invention discloses a damper and a water purifier with the same. The damper comprises a shell, a damping block is arranged in the shell in the water flowing direction, and an elastic piece is connected with the end, close to a water outlet, of the damping block. The damping block moves between a first position and a second position under the common effect of pressure of water and elastic force of the elastic piece. In the process that the damping block moves to the second position from the first position, the water discharging amount in the water outlet in the upper portion of the shell is reduced evenly. The water purifier is provided with the damper. When the flow of water entering the damper from a booster pump fluctuates, the damping block in the damper moves vertically in the water flowing direction under the effect of water pressure and the spring, the gap between the damping block and a transition section of the shell changes, and therefore it is ensured that the water outlet amount of the water outlet of the damper is kept stable, vibration of the water purifier in the use process is reduced to a certain extent, the use noise is lowered, and user satisfaction is improved.
Owner:GREE ELECTRIC APPLIANCES INC

Control method and system of air conditioner indoor unit

The invention discloses a control method and a system of an air conditioner indoor unit. The fan rotating speed is acquired, the rotating speed of a driving motor is determined according to the rotating speed of a fan; a rotating speed control signal is generated according to the rotating speed of the driving motor, and used for controlling the driving motor to rotate; the rotating speed of the driving motor is reduced along with the increase of the rotating speed of the fan, so that the use noise of a whole air conditioner is reduced; and the problem that the noise of the air conditioner is large when the fan of an existing air conditioner indoor unit operates at high rotating speed is solved, and the use experience of the user is improved.
Owner:QINGDAO HAIER AIR CONDITIONER GENERAL CORP LTD +1

Gas inflow method for gas water heater and gas water heater

The invention provides a gas inflow method for a gas water heater. The method is characterized in that a gas inflow channel is additionally arranged on a gas inlet of the strong-extracting or strong-blowing type gas water heater, the gas inflow channel is used for preventing noise in the gas water heater from being transmitted outside, and the use noise of the gas water heater is lowered in the aspect of noise transmission. The invention further provides the gas water heater based on the gas inflow method. The gas water heater is of a strong-extracting or strong-blowing type structure, and the gas inlet is formed in the back face or the side face or the top face of a shell of the gas water heater. The gas water heater is characterized in that a gas inflow cover is installed on the gas inlet, an air inlet is formed in the gas inflow cover, a silencing baffle is installed in the gas inflow cover, and external air flows into the gas inflow cover through the air inlet and then flows tortuously along the silencing baffle to the gas inlet.
Owner:GUANGDONG MACRO GAS APPLIANCE

Side sucking type range hood

The invention discloses a side sucking type range hood which comprises a shell and a smoke guide plate arranged on the front side of the shell. The shell is provided with a main wind inlet. Smoke sucking openings are formed between the smoke guide plate and the shell. The smoke sucking openings communicate with the main wind inlet. The range hood is characterized in that the two smoke sucking openings are located on the left side and the right side of the smoke guide plate correspondingly, the smoke sucking openings incline forwards gradually from bottom to top, and meanwhile, the smoke sucking openings are oblique openings gradually inclining toward the middle from bottom to top. The smoke sucking openings are formed in the two sides, the openings are obliquely opened in the opening direction, the soot dispersing principle is conformed, and compared with transverse openings, the capture effect of the range hood to the soot dispersed to the two sides is better.
Owner:NINGBO FOTILE KITCHEN WARE CO LTD

A solid thermal agent cutting bomb

The invention discloses a solid thermit jet cutter. The solid thermit jet cutter includes a shell case, a plug, a rapid combustion agent, a cutting agent, a separating sheet, a nozzle and a fuse; the shell case is a paper tube; the plug is made of a high-temperature resistance plastic material or a ceramic material; the high energy cutting agent is a hollow structure compressed by mixed solid powder; a channel is filled with the rapid combustion agent, and a solid dual-grain structure is formed; the straight-flow type nozzle made of a graphite material is arranged on the internal front end of the cutter; the separating sheet is arranged between the nozzle and the cutting agent and the rapid combustion agent; and the fuse is a special hard columnar inflammable material. During cutting, the jet cutter is arranged in a special cutting torch, the fuse is introduced from the nozzle, the rapid combustion agent is ignited after the fuse is ignited, the rapid combustion agent ignites the inner wall of the grain instantly, a high-temperature product is gathered and compressed via the nozzle and then is ejected to fuse and combust a cutting piece locally, and then the high-temperature product is blown down by high-pressure gas, and manual thermit cutting can be achieved. The jet cutter is simple in structure, is easy and reliable to operate, is high in cutting efficiency, is wide in application, and can be used for rapid emergent thermal cutting without electricity, gas, and devices.
Owner:PEOPLES LIBERATION ARMY ORDNANCE ENG COLLEGE
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