2results about How to "Realize automatic drive" patented technology

The present application relates to the technical field of vacuum packaging, in particular to a food vacuum packaging and fresh-keeping equipment and a use method thereof. The equipment comprises a support frame, a shell, a sealing assembly, a supporting assembly, a negative pressure machine and an electric push rod two. The support frame is provided with the shell on the top. The support plate of the shell is used for placing a vacuum bag. The shell is internally provided with the sealing assembly and the supporting assembly. The supporting assembly penetrates the sealing assembly. The supporting assembly comprises two drive rods. The drive rods are rotatably connected with two connecting rods at the ends. The connecting rods are rotatably connected with support rods at the ends. The drive rods, the connecting rods and the support rods are internally provided with air channels in communication. The rear end of the drive rod is provided with an air outlet in communication with the air channel. The support rods of the supporting assembly are unfolded to support the food area of the vacuum bag. The two heat seals of the sealing assembly are matched. The air is drawn in steps through the air channels. The two-step air extraction packaging is realized, that is, the air outside the food is extracted first and then the air in the food area is extracted. The food is not directly squeezed throughout the process.

The invention provides an intrauterine precise guiding, conveying and insemination device, which relates to the technical field of medical apparatus and instruments, and comprises a suction and conveying unit, a rotary insemination unit and a driving auxiliary unit, the rotary insemination unit is installed at the left end of the sucking and conveying unit, and the rotary insemination unit is used for sucking fluid containing sperms and conveying the fluid containing sperms into the uterine cavity; the driving auxiliary unit is installed on the rotary insemination unit, and the suction conveying unit and the driving auxiliary unit are used for improving the conveying precision of the rotary insemination unit; when two rows of arc-shaped pushing blocks push two movable increasing frames to slide inwards, air in a rectangular pressurizing shell enters a driving air bag, automatic driving of a rotary insemination head is achieved, and the conveying direction of fluid containing sperms can be automatically changed; the problem that when fluid containing sperms is conveyed, the conveying position cannot be automatically changed, and the fertilization success probability is affected is solved.