38results about How to "Use quiet" patented technology

A nasal patient interface for delivery of a supply of pressurised air or breathable gas to an entrance of a patient's airways comprising: a cushion member that includes a retaining structure and a seal-forming structure permanently connected to the retaining structure; a frame member attachable to the retaining structure; and a positioning and stabilising structure releasably attachable to the frame member.

A wall mountable urinal having an ultra-low use of flush water, minimum material and a self-cleaning action. The urinal comprises an upright bowl that uses a flushing action provided by a misting water jet that is centered above the bowl and that provides a fine mist of water. The water mist washes the entire bowl up to its upper edge and the water droplets that accumulate upon the bowl are guided into a drain. An electrical detector that detects the user's presence is provided that is capable of initiating the flushing water mist during use and for a predetermined time thereafter.

The invention discloses an intelligent device used for household clothes sun-curing. The intelligent device comprises a main body box body, wherein a tubular motor is arranged on the main body box body; one end of the tubular motor is fixedly connected to a lifting transmission mechanism; a telescopic balance mechanism is mounted between the main body bracket and a sun-curing rod supporting plate;front and rear beams are fixedly mounted between the main body bracket and a top plate; and a circuit board is connected to an LED illuminating lamp. According to the intelligent device used for household clothes sun-curing disclosed by the invention, a clothes sun-curing frame is lifted to a proper position through the lifting transmission mechanism, a sterilizing lamp, a PTC heating body, a through-flow fan and the LED illuminating lamp are used to perform illuminating, air-drying, hot-air drying, and sterilizing on the clothes, so that the problem that use feeling is affected by too greatnoises as a clothes sun-curing device is not perfect and unreasonable in structural design, is relatively complex in structure, is inconvenient in use, does not have functions of illuminating, sterilizing, air-drying, hot-air drying and indoor decorating, and shake is easily generated when the clothes frame is lifted is solved.

A device and method introduces the use of conventional ammunitions to the archery/bow hunting industry. The device achieves stealthy delivery of firearm munitions and increases the firepower of standard arrows resulting in deeper penetration into a target. The device consists generally of a cylindrical housing threaded internally on one end for attachment to a firing pin. A cartridge is loaded into the housing until the flange on the cartridge casing abuts an interior shoulder. In an alternate embodiment, the interior of the housing further includes an annular retaining tab. The retaining tab separates the cartridge from the firing pin to prevent inadvertent discharge. A cap or nosecone may be included to further protect the device from accidental discharge of the cartridge and to provide aerodynamic advantages. The housing may further include a set of stabilizing vanes.

A device and method introduces the use of conventional ammunitions to the archery/bow hunting industry. The device achieves stealthy delivery of firearm munitions and increases the firepower of standard arrows resulting in deeper penetration into a target. The device consists generally of a cylindrical housing threaded internally on one end for attachment to a firing pin assembly. A firing pin is slideably attached to the firing pin assembly. A cartridge is loaded into the housing until the flange on the cartridge casing abuts an interior shoulder. In an alternate embodiment, the interior of the housing further includes an annular retaining tab. The retaining tab separates the cartridge from the firing pin to prevent inadvertent discharge. A cap or nosepiece may be included to further protect the device from accidental discharge of the cartridge and to provide aerodynamic advantages. The housing further includes a set of stabilizing vanes.

The invention relates to a respiration type air conditioner external unit which comprises a housing, a compressor, a heat exchange plate and an air guide device. The housing comprises a control cavity and a cake-shaped heat exchange cavity; the heat exchange plate extends along the circular ring panel of the heat exchange cavity; one-way exhaust holes are formed in the circular ring panel, directly facing the heat exchange plate, of the heat exchange cavity; the air guide device is arranged on a division plate, and comprises a respirator made of an elastic material; the air guide device pulls air out from the respirator and injects air into the respirator periodically and prompts the respirator to be deformed; when the respirator expands to the amplitude peak, the side wall of the respirator is close to the surface of the heat exchange plate; and when a respiration hole of the air guide device extends out of the housing, the one-way air inlets are formed in the heat exchange cavity, and extend out of the housing. The respiration type air conditioner external unit is novel in structure and unique in principle, the heat dissipation efficiency of the external unit can be effectively improved, meanwhile noise generated in working is reduced, and an influence on the normal life of a user is effectively reduced.

The invention provides a full-automatic toothbrush based on a pneumatic transmission system, which comprises a main body, wherein bristles are arranged in the main body; the first telescopic air bag is arranged along the extension direction of the main body, and the first telescopic air bag contracts or stretches to drive the main body to move; a second telescopic air bag arranged at the side of the main body; a third telescopic air bag arranged at the side of the main body; when the second telescopic air bag is extended and the third telescopic air bag contracts, the main body moves along with the direction of contraction of the bristles towards the third telescopic air bag; When the second telescopic air bag contracts and the third telescopic air bag is extended, the main body moves along with the direction of contraction of the bristles towards the second telescopic air bag. So that the horizontal movement and the up-and-down movement of the main body can be realized, and the bristles are convenient to carry out all-directional cleaning on the surface of the teeth, and no dead angle is cleaned.

The invention discloses a low noise cartridge receiver and control plane for duct type vertical take-off and landing air vehicle. The cartridge receiver is divided into a lip ring, a cartridge receiver main body and a sawtooth bottom ring which are sequentially arrayed from top to bottom and are connected and fixed by virtue of long bolts and nuts through four screw holes; tail guiding control planes are mounted on the inner side of the sawtooth bottom ring, and triangular sawteeth are arranged on the tail edges of the tail guiding control planes; and the sawteeth at the tail of the sawtooth bottom ring are of a sine form, and the end surfaces the sawteeth are vertical to the cylindrical surface on the inner side of the cartridge receiver. After the cartridge receiver is processed, the cartridge receiver main body is capable of effectively absorbing noise produced by propellers; the structure of a speed shearing layer is influenced by the sawtooth bottom ring, so that the jet noise ofthe duct air vehicle can be effectively reduced; and by utilizing the sawtooth structures at the tail edges of the tail guiding control planes, the tail track region is broadened, the crushing of trailing vortex is accelerated, and the noise of turbulent flow behind the control planes is effectively lowered. Compared with a traditional multi-rotor duct air vehicle, the air vehicle utilizing the cartridge receiver and the control plane is relatively quiet during the flight, can be used for executing tasks with high concealing requirements and has wide application prospects.

The invention discloses a decoder for video monitoring, and the decoder comprises a shell; a partition plate is fixedly installed in the shell, an air inlet is formed in the front wall of the shell, a heat dissipation cavity is formed in one side of the partition plate and communicates with the air inlet, a communicating hole is formed in the partition plate, the heat dissipation cavity is communicated with an inner cavity of the shell through a communicating hole, a motor is fixedly installed in the heat dissipation cavity, a first rotating shaft is installed at the output end of the motor in a transmission mode, and fan blades are fixedly installed at the end, away from the motor, of the first rotating shaft; air in the inner cavity of the shell is sucked into the heat dissipation cavity through the communicating hole under the injection action and then exhausted from the heat dissipation cavity, so heat dissipation of electronic components in the inner cavity of the shell is achieved; the transmission mechanism is driven under the magnetic attraction action, and the driving mechanism does not need to make contact with the transmission mechanism, so noise generated during driving is reduced, and the use is quieter.

The invention discloses a medical equipment cooling fan. The medical equipment cooling fan comprises a supporting seat, a plurality of rolling wheels are arranged at the bottom of the supporting seat,a first driving motor is arranged in the supporting seat and in transmission connection with the rolling wheels, a supporting rod is arranged at the top of the supporting seat, a jacking device is arranged at the top of the supporting rod, the upper part of the supporting rod extends to the interior of the jacking device, and a mounting seat is arranged at the top of the jacking device; and a second driving motor is arranged in the mounting seat, a first rotating shaft is arranged on the second driving motor, the jacking device is fixedly connected with the second driving motor through the first rotating shaft, a fixing sleeve is arranged at the top of the mounting seat, a third driving motor is arranged on one side of the interior of the fixing sleeve, a sound isolation sleeve is arranged between the third driving motor and the inner wall of the fixing sleeve, a plurality of cooling pieces are arranged between the sound isolation sleeve and the third driving motor, and a filtering screen is arranged at the end, close to the inner side of the fixing sleeve, of the third driving motor. The medical equipment cooling fan has the beneficial effects of being convenient to connect and obvious in cooling effect.

The invention relates to a ceramic bearing, which includes an axis and a bush. A axle hole disposed on the bush lets the axis pass through. The axle hole includes one big diameter part and two small diameter parts. The two small diameter parts are located at the two ends of the big diameter part separately.

The invention relates to an anti-overheating automobile data recorder. The anti-overheating automobile data recorder comprises a sucker seat, a shell and a camera; the sucker seat is detachably adsorbed to a front windshield; the camera is supplied with power by using a power supply; a liquid storage cavity is formed in the upper end of the shell; a normal closed liquid filling hole is formed in the liquid storage cavity; a partition plate is arranged in the liquid storage cavity; the partition plate can slide along the internal wall of the liquid storage cavity in the advancing direction of an automobile body in a reciprocating manner; a one-way flow guide valve is arranged on the partition plate; when the one-way flow guide valve is closed, the partition plate partitions the liquid storage cavity into two independent cavities; the two cavities communicate with each other through a flow guide pipe; the flow guide pipe is coiled and arranged in the shell and sticks to the surface of an element easy to heat; and the liquid storage cavity and the flow guide pipe are filled with an adjusting liquid. The anti-overheating automobile data recorder has the advantages that the structure is novel, the principle is special, the temperature of the automobile data recorder during working can be effectively reduced, and the stable working of the automobile data recorder can be guaranteed.

The invention discloses a safe and efficient corn threshing device and a working method thereof. The safe and efficient corn threshing device comprises a threshing box, an upper stop cover, a guidingframe, a fitting roller, a first motor, a belt and a rotating disc. The upper stop cover is arranged on the upper side of the threshing box. The guiding frame is obliquely arranged at one end of the upper stop cover. The fitting roller is arranged on one side wall of the threshing box. The safe and efficient corn threshing device has the advantages that a plurality of scrapping rods arranged on two inner scrapping drums at equal radians are rotated synchronously to thresh corn, a plurality of threshing discs arranged on two lateral scrapping drums at equal radians cooperate with a plurality ofprotruded scrapping blocks arranged on the threshing discs at equal intervals to rotate synchronously to thresh the corn, and accordingly, the corn threshing efficiency and comprehensiveness of the device are improved; corn kernels are discharged into a discharge bucket synchronously through a plurality of through kernel holes, and accordingly, the high kernel discharge efficiency is ensured; when the device threshes the corn, the corn kernels are discharged out immediately to be prevented from splashing to hurt people, and accordingly, the safety in use is ensured.