10results about How to "Noise isolation" patented technology

This utility model discloses a bottom structure for a dishwasher and the dishwasher itself. The bottom structure is adapted to be arranged on the lower side of the inner tub. The bottom structure includes a base, a flow guide, and a sound insulation plate. A hinge seat is provided on the base. At least a portion of the flow guide is located on the upper side of the base. The sound insulation plate is located on the upper side of the base and is connected to at least one of the flow guide and the hinge seat. According to the bottom structure of the dishwasher of this utility model, by setting a sound insulation plate that cooperates with the flow guide, the noise generated by the water flow impacting the bottom of the inner tub and the motor pump is effectively isolated, making the dishwasher quieter during operation and reducing the impact of operating noise on the user. The sound insulation plate is connected to the flow guide and / or the hinge seat, realizing the integrated design of the sound insulation plate, the flow guide, and / or the hinge seat, which facilitates modular assembly, improves production assembly efficiency, and has a compact overall structure and small space volume.

This application discloses a thermally broken aluminum alloy casement window, belonging to the field of doors and windows. It includes an outer frame, an inner frame installed inside the outer frame via a thermally broken strip, a side frame mounted on the inner wall of the inner frame via two hinges, a sash frame fixedly installed on one side of the side frame, and a glass assembly installed inside the sash frame. Both the inner frame and the sash frame are equipped with Helmholtz resonators. The sound insulation layer filled inside the sash frame effectively isolates external noise and reduces the impact of internal noise. At the same time, some sound energy can be absorbed by the outer tempered glass and the intermediate PVB film, while the air layer of the inner double-glazed glass can further block the transmission of sound waves. Furthermore, the Helmholtz resonator can be used to specifically absorb noise of a certain frequency.

This utility model relates to the technical field of reinforced plastic steel door and window structures, and discloses a corner reinforcement structure for plastic steel doors and windows, including a base plate, which is inserted into and fitted with side plates. A fixing block is provided at the junction of the side plates, and a limiting rod is provided inside the fixing block. A spring is sleeved on the outside of the limiting rod. The limiting rod is rotatably connected to a pressure block, and the pressure block is fixedly connected to a fixing plate. A double-sided sealing gasket is provided on one side of the fixing plate. The double-sided sealing gasket is made of a highly elastic and weather-resistant material, which can tightly fit the gaps of the door and window frame, effectively isolating external wind, rain, dust and noise, and improving the comfort of the living environment.

This utility model provides a noise reduction structure for an air conditioning ventilation system, belonging to the field of air conditioning system noise reduction technology. It includes a ventilation duct with sound-insulating cotton installed inside, and a filter assembly at the front end of the ventilation duct. The filter assembly includes a fixed frame, which is fixedly installed inside the ventilation duct. The sound-insulating cotton effectively isolates noise from inside the ventilation duct, achieving noise reduction. With the positioning component, when the filter screen has little dust and needs cleaning, the filter screen, movable frame, and fixed frame can be easily rotated out. At this time, the filter screen is not detached from the ventilation duct, allowing workers to clean it directly without disassembly, making operation convenient. With the limiting component, when deep cleaning of the filter screen is required, it can be directly removed from inside the movable frame for deep cleaning, also making operation convenient.

The utility model discloses a host computer's host computer improved structure, including host computer shell, be provided with motor and deceleration transmission subassembly in host computer shell, and the host computer shell periphery has opened host computer air inlet and host computer air outlet, and the motor has opened motor air inlet and motor air outlet, its characterized is, still including motor cover, and the motor cover includes air inlet chamber, air outlet chamber and sound attenuation chamber, and the air outlet chamber is located one side of air inlet chamber and the sound attenuation chamber is located the top of air inlet chamber and air outlet chamber, and the air inlet chamber is wrapped motor periphery and the motor air inlet is located the lower part of air inlet chamber, and the lower part opening of air inlet chamber is connected with host computer air inlet, and the upper part of air inlet chamber is connected with the upper part of air outlet chamber and the motor air outlet is located the upper part of air inlet chamber, and the lower part opening periphery of air outlet chamber is in contact with the inner wall of host computer shell, and the lower part opening of air outlet chamber is connected with host computer air outlet, this kind of food processing machine, add motor cover, shorten the exhaust path of motor, can also play certain sound insulation and sound attenuation effect simultaneously.

This application relates to the field of laser marking technology and provides an automatic marking device, which includes a frame, a conveyor belt, a vibratory feeder, a limiting component, a marking machine, and a sensor. The conveyor belt is rotatably connected to the frame. The vibratory feeder is located on one side of the frame and is used to vibrate and feed workpieces. The output end of the vibratory feeder is located above the input end of the conveyor belt. The limiting component is located above the conveyor belt and is used to limit the workpieces on the conveyor belt. The marking machine is located on the conveying path of the conveyor belt and is used to mark the workpieces. The sensor is located on the limiting component and below the marking machine, and is used to detect the position of the workpieces on the conveyor belt. This application has the effect of facilitating the marking of workpieces.

The utility model discloses a device of cooperation children anaesthetized under magnetic resonance examination relates to medical auxiliary technical field. Including split type mattress, this split type mattress is divided into the headrest area of supporting head portion and the main body support area of bearing body, and all are by the upper pad layer and lower pad layer of interconnection composition, head adjustment subassembly is set up above headrest area, is used for adjusting the head of patient is the head -up and holds the state of the chin. The utility model can promote the safety, accuracy and comfort of children nuclear magnetic resonance scanning examination.

The application discloses a jet vortex spinning machine, and relates to the technical field of textile equipment, which comprises a machine body, a sound insulation cover, a sound insulation cavity formed in the sound insulation cover, the machine body located in the sound insulation cavity, a sound insulation board arranged in the sound insulation cover, a plurality of buffer water bags arranged on the inner wall of the sound insulation cover, the buffer water bags located in the sound insulation cavity and abutting against the outer wall of the machine body, a noise sensor arranged in the sound insulation cover and located in the sound insulation cavity, and a control system arranged in the sound insulation cover and connected with the noise sensor. When the noise sensor senses that the noise intensity in the sound insulation cavity rises, the control system controls the water pressure in the buffer water bag to be enhanced. When the noise sensor senses that the noise intensity in the sound insulation cavity falls, the control system controls the water pressure in the buffer water bag to be weakened. The application can reduce the noise emitted during the spinning process of the spinning machine.

The utility model relates to the technical field of automobile steering gear, disclose a kind of noise reduction type automobile steering gear, including rack gear, two pull rods and two ball head pins, the outer wall of rack gear is engaged with steering lever by gear, the both sides of rack gear inner wall are fixedly connected with torque bar, the both sides of torque bar outer wall are respectively connected by hinged member hinged connection with the adjacent two sides of pull rod, the side of pull rod far from rack gear middle part is all connected with ball head pin by hinged member hinged connection, the outer wall of ball head pin upper end is all provided with slotted nut. In the utility model, the anaerobic adhesive used in the connecting place of pull rod and rack and torque bar tightening process ensure the firm and reliable connection, the molybdenum disulfide grease filled in ball head pin ensures its rotation smooth and reduces noise, rubber protective cover and the protective sleeve everywhere effectively isolate vibration, impact and external environment, further reduce noise.