6results about How to "Reduce operating noise" patented technology

The invention relates to the field of culture treatment, and discloses a water purification system for eriocheir sinensis culture, which comprises an execution box, the upper side of the execution box is connected with a culture pond, and the middle of the culture pond is connected with an execution mechanism; the first inclined boxes are fixedly connected to the bottom of the culture pond, and a medicine box connected with the culture pond is arranged between the two first inclined boxes; the purification mechanism is arranged in the execution box, the purification mechanism is connected with the first inclined box, and the output end of one side of the purification mechanism is connected with the execution mechanism. The device can stably carry out multiple circulation treatment, the stability of a water body is guaranteed, in the treatment process, oxygen filling can be carried out, then the water body is circulated, oxygen supply is guaranteed, and meanwhile the water body can be purified. Meanwhile, large feed blocks can be separated and recycled, waste of raw materials is reduced, and the breeding cost is saved.

The present invention relates to an oven air guide structure, comprising a fan, an air guide plate and a top plate, an air flow channel is formed between the air guide plate and the top plate, the air flow channel has an air inlet and an air outlet, the fan is arranged at the air inlet, a heat insulation board is arranged in the air flow channel, the projection of the heat insulation board on the air guide plate overlaps with the installation position of the power board on the air guide plate or the periphery of the projection is located at the periphery of the installation position, a gap is left between the heat insulation board and the above-mentioned installation position to communicate with the air outlet of the fan, a spacing is formed between the heat insulation board and the top plate, and the air outlet of the above-mentioned fan can pass through the gap between the heat insulation board and the top plate to the air outlet after entering the air flow channel. Compared with the prior art, the present invention can increase the thermal resistance between the top plate and the installation position, that is, increase the thermal resistance between the top plate and the power board, and reduce the heat transferred to the power board.

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 invention discloses an electric clothes hanger capable of automatically adjusting the distance between clothes, which comprises a main machine and a liftable airing rod, and is characterized in that the end part of the main machine is provided with an upper coupling driven by a motor; a lower coupling and a main gear are arranged at the head end part of the airing rod, and the main gear is coaxially arranged on the lower side of the lower coupling; a driven gear is arranged at the tail part of the airing rod; a linear sliding groove extending in the length direction of the airing rod and an annular groove surrounding the linear sliding groove are formed in the airing rod, and a plurality of hanging rings are arranged in the linear sliding groove; a belt is arranged in the annular groove and connected to the driving gear and the driven gear. The first hanging ring is fixed in the sliding chute of the airing rod; the adjacent hanging rings are connected through flexible wires, and finally the hanging rings are connected with the belt. A first tooth part is arranged on the lower end face of the upper coupler, and a second tooth part is arranged on the upper end face of the lower coupler. According to the invention, the clothes are automatically dispersed and collected, and the clothes airing efficiency is improved.

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.