12results about How to "Low motion noise" patented technology

A pushing chain for a villa elevator relates to the technical field of pushing chains and comprises a pushing chain body, the pushing chain body comprises a first chain plate and a second chain plate, limiting grooves are formed in the upper portions of the front ends of the first chain plate and the second chain plate, limiting blocks are arranged on the upper portions of the rear ends of the first chain plate and the second chain plate, and the limiting grooves are used in cooperation with the limiting blocks. First protrusions extending forwards are arranged at the bottoms of the front ends of the first chain plate and the second chain plate, first connecting holes are formed in the first protrusions, second protrusions are arranged at the rear ends, where the inner sides of the lower portions of the limiting blocks are located, of the first chain plate or the second chain plate, and second connecting holes are formed in the second protrusions. The second protrusions are bent and translated towards the outer side relative to the first chain plates or the second chain plates, the translating distance is the same as the thickness of the first protrusions, and the second protrusions of the first chain plates and the second chain plates are opposite in direction relative to the first protrusions. The device is used for being installed on the side face of the villa elevator car and has the advantages of being simple in structure, small in occupied space, high in speed, large in load, low in maintenance cost, safe and reliable.

The utility model relates to a sealing structure of an invisible sunshade curtain and an automobile, and the sealing structure comprises a first sealing mechanism which is located at the front part of an electric sunshade curtain system, and the first sealing mechanism is connected to top layer glass, bottom layer glass and a guide rail of the electric sunshade curtain system in a sealing manner; the second sealing mechanism is located on the side portion of the electric sunshade curtain system, and the second sealing mechanism is connected to the top layer glass and the bottom layer glass of the electric sunshade curtain system in a sealed mode; the third sealing mechanism is located on the rear portion of the electric sunshade curtain system, and the third sealing mechanism is connected to the top layer glass and the bottom layer glass of the electric sunshade curtain system in a sealed mode. The sunshade curtain is fully sealed, the movement noise of the sunshade curtain can be reduced, dust is isolated, and the service life of the sunshade curtain is prolonged.

This application relates to a demagnetizing device, a coating equipment, and a coating method for battery electrode sheets. The demagnetizing device includes: a guiding mechanism disposed on a slit-type processing device; a movable component slidably mounted on the guiding mechanism; a magnet unit connected to the movable component, which has the ability to attract magnetic impurities; a transmission component connected to the movable component; and at least one driving mechanism disposed outside the slit-type processing device for driving the transmission component and the movable component. During the driving of the transmission component and the movable component, the magnet unit reciprocates along the guiding mechanism near the workpiece to be demagnetized. This application has advantages such as high demagnetizing safety, high efficiency, and low difficulty in arrangement and operation.

This invention discloses a dynamic noise active suppression suspension system for air-to-ground electromagnetic detection, belonging to the field of geophysical exploration technology. It includes a coil vibration suppression system connected to a UAV, a receiving coil sensor, and a coil attitude control system. The coil vibration suppression system is connected to the pitch frame of the coil attitude control system via a carbon fiber tube assembly. The pitch frame is connected to the receiving coil sensor via two roll shafts. One roll shaft is connected to a first motor, and a second motor is mounted on the frame edge of the pitch frame perpendicular to the roll shaft. Both the first and second motors are connected to a controller. The coil vibration suppression system suppresses the vibration amplitude of the receiving coil and absorbs the motion noise generated by the receiving coil vibration. The controller collects and controls the first and second motors to adjust the attitude of the receiving coil, suppressing the motion noise generated by the attitude change of the receiving coil. This application significantly reduces the motion noise of air-to-ground transient electromagnetic reception data, enabling low-noise detection using air-to-ground transient electromagnetic methods in complex environments.

This invention discloses a suspended, flexible, deformable, and emotionally interactive robot. A flexible outer shell covers a flexible chassis, and a levitation airbag is installed inside the flexible outer shell. The levitation airbag is filled with buoyancy gas to provide the buoyancy required for the robot's suspension. An interactive control system inside the flexible chassis enables user interaction. A micro-airflow propulsion system is installed at the bottom of the flexible chassis, including multiple airflow generating units. By adjusting the airflow direction and intensity of the airflow generating units, the robot is driven to achieve spatial movement. The charging base station is an external device, and the bottom of the flexible chassis has an energy supply interface corresponding to the charging base station. When docked, the charging base station provides the robot with electrical energy or buoyancy gas. This invention is applicable to fields such as family emotional companionship, health and wellness, creating an intelligent indoor atmosphere, psychological relaxation assistance, and interactive displays in commercial scenarios. Through the organic integration of various systems, the robot achieves aerial suspension, flexible deformation, intelligent emotional interaction, and autonomous refueling.

The household garbage transport vehicle opening and closing cover sealing system comprises a container, a garbage loading opening is formed in the top of the container, and a loading butt joint frame is arranged above the garbage loading opening; the sealing cover is used for sealing the garbage loading opening, the first linear driver is used for driving the sealing cover to move in the front-back direction of the container, and walking wheels are arranged on the lower side of the edge of the sealing cover; the lifting driver is arranged on the side wall of the container, and the lifting block and the hook are driven by the lifting driver to lift. In the process of opening or closing the sealing cover, the sealing cover does translational motion on the top of the container through the rollers, and the motion noise is low under the motion resistance of the sealing cover. When the sealing cover is closed, the walking wheel is just located on the lifting block, the lifting block descends so that the sealing cover can be pressed and attached to the garbage loading opening, the hook is hung and pressed on the top of the sealing cover, the position of the sealing cover is reliably fixed by the hook, and odor in the container cannot escape from the container.

The present invention discloses a synchronous silent slide rail, comprising a slide rail outer frame, a slide rail middle frame slidably arranged in the slide rail outer frame, a first and a third mid-range points arranged on the slide rail middle frame, the first mid-range point is located at the middle position of the slide rail middle frame, the third mid-range point is located at the front end position of the slide rail middle frame, and an outer frame elastic member is arranged on the slide rail outer frame; when the slide rail middle frame is folded and closed, the third mid-range point abuts against the outer side of the outer frame elastic member, and when the slide rail middle frame is pulled out and opened, the first mid-range point abuts against the inner side of the outer frame elastic member. A gear is rotatably fixed on the frame wall at the rear end position of the slide rail inner frame, and the gear is meshed on the rack. The gear comprises a tooth portion and a connecting portion of an integrated structure, and a synchronous connecting rod can be fixed on the connecting portion to connect with another synchronous silent slide rail. The slide rail of the present invention has good synchronization and obvious noise reduction, simple structure, dual-purpose, and is easy to produce.

The utility model discloses an automobile back row seat backrest electric adjusting driving fixing plate, which relates to the technical field of automobile accessories, and comprises a main plate body, a limiting bulge is arranged on one side of the upper end of the main plate body, an angle adjuster fixing hole is arranged on the main plate body and below the limiting bulge, and the angle adjuster fixing hole is connected with the limiting bulge. A limiting clamping groove is formed in the main plate body and located below the limiting protrusion, a limiting plate is arranged at the lower end of the limiting clamping groove, a process groove is formed below the limiting plate, and a function part running groove is formed in the process groove in the left-right direction; and injection molding materials are arranged in the process groove and located on the outer side of the functional part operation groove, a circular positioning hole and a long circular positioning hole are formed in the middle of the main plate body and located on the left side and the right side of the upper end of the process groove correspondingly, the overall weight of the fixing plate is lighter, the fixing plate is simple in structure and high in manufacturability, the overall structure is formed through stamping, and the fixing plate is convenient to use. Nylon plastic materials are locally injected, the self-lubricating function is achieved, and movement noise is reduced.

The invention relates to the technical field of drive-by-wire chassis platforms, and discloses a full vector angle unit adopting a rotary master pin, which comprises a suspension mechanism, a steering mechanism and a hub, and the steering mechanism comprises a steering knuckle connected with the hub; the worm and gear speed reducer is longitudinally arranged in the steering knuckle, an output shaft of the worm and gear speed reducer is provided with two output ends, and first bevel gears are arranged at the two ends of the output shaft; the main pin is rotationally connected into the steering knuckle, two second bevel gears meshed with the two first bevel gears are arranged at the two ends of the main pin respectively, the two ends of the main pin penetrate out of the steering knuckle, and hinges hinged to the suspension mechanism are hinged to the two penetrating-out ends of the main pin; the steering motor is connected to the steering knuckle, and a rotating shaft of the steering motor is connected with an input shaft of the worm and gear speed reducer; the steering mechanism of the full vector angle unit can perform bidirectional output of steering force, and has a self-locking function, so that the position of the steering force is kept without a steering motor, and the stability and safety of a high-speed running automobile are ensured.

The utility model discloses a positioning component for an actuating mechanism of a turbocharger, which relates to the field of turbochargers and comprises a fixing part, a ring body, at least two first elastic ends and at least two second elastic ends. The ring body is used for limiting and assembling clearance compensation between a pull rod and a rocker arm of the executing mechanism, the first elastic end and the second elastic end are both installed on the ring body and have elasticity, and at least one of the first elastic end and the second elastic end and the ring body are not located on the same plane. The first elastic end or the second elastic end is in extrusion contact with the pull rod or the rocker arm; an up-and-down dislocation mode is adopted, an elastic effect is formed, the function of a spring can be achieved while positioning is achieved, the assembly gap between the pull rod and the rocker arm is compensated, and motion noise of an actuator mechanism is lowered.

The utility model discloses a full-automatic chassis abnormal sound detection device, and aims to solve the problems of short service life and low reliability of a transmission structure in the prior art. Comprising a machine body, a vibration simulation mechanism is arranged in the machine body and comprises a servo motor and an eccentric wheel, the servo motor drives the eccentric wheel to rotate through a transmission mechanism, the eccentric wheel comprises an eccentric bearing and a protruding part, and the protruding part is located above the eccentric bearing and is relatively and fixedly connected with the lower end of a lifting platform; therefore, the servo motor drives the lifting platform to move up and down. The utility model has the advantages that through the structure of the eccentric wheel, the defect of small lifting force caused by a connecting rod mechanism is overcome, the whole mechanism runs more smoothly, the influence of alternating stress on parts is greatly reduced, the risk that the parts are broken due to stress is reduced, and the reliability and durability of the device are improved.

A knee joint physiotherapy device, comprising a thigh seat, a first support plate being mounted at the bottom of the thigh seat; a shank seat being hinged to the thigh seat; a telescopic air bag, comprising a plurality of expansion layers arranged in sequence along the telescopic direction, adjacent two expansion layers being in air path communication, each expansion layer being provided with a constraint portion on the side facing the thigh seat, the constraint portion making the telescopic air bag present an arc shape when inflated, the first end of the telescopic air bag being connected to the first support plate, the second end being connected to the bottom of the shank seat, the telescopic air bag being capable of making arc line reciprocating motion of the second end relative to the first end through telescoping; and a charging and discharging device being arranged at the thigh seat and being communicated with the telescopic air bag, the gas being charged into or discharged from the telescopic air bag through control, the gas pressure in the telescopic air bag being changed, the telescopic air bag being driven to telescope, and the shank seat being further driven to rotate around the hinge point relative to the first support plate.