3results about How to "Reduce operating noise" patented technology

This utility model discloses a high-shield coaxial quick-pull self-locking connector, including a socket assembly and a plug assembly. The socket assembly includes a socket housing and a first coaxial assembly. One end of the socket housing has a first cylindrical portion, and the first coaxial assembly is disposed within the first cylindrical portion. A snap-fit ​​groove is circumferentially provided on the outer wall surface of the first cylindrical portion. The plug assembly includes a plug housing and a second coaxial assembly. One end of the plug housing has a second cylindrical portion corresponding to the first cylindrical portion, and the second coaxial assembly is disposed within the second cylindrical portion. A snap-fit ​​tube is also provided around the second cylindrical portion, and a snap-fit ​​strip is provided at the end of the snap-fit ​​tube. The first cylindrical portion can be inserted into the gap between the snap-fit ​​tube and the second cylindrical portion to connect the first coaxial assembly and the second coaxial assembly, and the snap-fit ​​strip abuts and is limited within the snap-fit ​​groove. The technical solution of this utility model aims to eliminate the micro-explosion noise generated when connecting and disconnecting the connector, while maintaining a safe and tight locking fit.

The utility model discloses a high-noise-reduction chain type window opener, and belongs to the technical field of window openers. The high-noise-reduction chain type window opener comprises a shell, a chain body is arranged in the shell, a shell cover is arranged on the top face of the shell and comprises a cover body, a strip-shaped groove is formed in the bottom face of the cover body, a pressing roller is rotationally connected to the interior of the strip-shaped groove, a ball groove is formed in the bottom face of the interior of the shell, and the pressing roller is rotationally connected to the interior of the ball groove. Balls are rotationally connected into the ball grooves, and the two sides of the chain body make contact with the balls and the outer walls of the pressing rollers correspondingly. The driving machine box is installed at one end of the shell, sound insulation cotton is installed on the inner wall of the driving machine box, conical protrusions are arranged on the inner wall of the sound insulation cotton, the driving machine box comprises a box body, and a motor and a micro speed reducer are installed on the two sides of the interior of the box body correspondingly; and the output end of the motor is in transmission connection with the input end of the micro speed reducer.

The application discloses a mute type electric push rod gear deceleration transmission structure and relates to the technical field of electric actuators. The mute type electric push rod gear deceleration transmission structure comprises a push rod mechanism, the bottom end of the push rod mechanism is provided with a deceleration protection shell mechanism, the other side of the upper end of the deceleration protection shell mechanism is provided with a power motor, the outer wall upper portion of the power motor is provided with a reinforcing frame, and the bottom end of the deceleration protection shell mechanism is provided with a deceleration box mechanism. The mute type electric push rod gear deceleration transmission structure is characterized in that the driving shaft and the extension shaft are fixedly connected, the outer wall of the extension shaft is provided with a deceleration wheel, the outer wall of the deceleration wheel is provided with a brake, the brake is pulled by a steel wire rope in the process of use, the deceleration wheel in the rotating process is clamped and decelerated, the driving shaft and the extension shaft are fixedly connected in the clamping and decelerating process, and the transmission gear is fixedly connected to the outer wall of the driving shaft, so that the purpose of gear deceleration is achieved.