5results about How to "Avoid secondary contact" patented technology

This invention provides a prostate biopsy sampling device, belonging to the field of prostate biopsy sampling technology. The device includes a housing with an inner cylinder inserted inside; a multi-needle storage mechanism; a pushing mechanism; and a limiting mechanism for allowing the sampling needle to pass through unidirectionally and preventing its retraction, clamping and fixing the passed-through sampling needle, or completely avoiding it for forward removal. In this solution, the prostate biopsy sampling device, by setting up the storage mechanism and the pushing mechanism, can pre-load multiple surgical needles into the device at once, significantly reducing the frequent disassembly, replacement, and installation of needles during surgery, effectively shortening the operation interval, and significantly improving the overall operational efficiency of prostate biopsy surgery. Combined with the pushing mechanism and the multi-needle storage mechanism, it can sequentially and individually extend the multiple stored needles.

The utility model discloses wheat cleaning equipment with a water floating screening function, which comprises a tank body assembly, a stirring assembly is arranged in the tank body assembly, the right side of the tank body assembly is connected with a water supply assembly with a filtering function, and the bottom of the tank body assembly is provided with a material conveying assembly with a draining function. The tank body assembly comprises a tank body, the water supply assembly is arranged, a water pump is started to continuously discharge water in the water tank into the tank body, floating impurities on the water surface in the tank body are discharged into a filter box of the water supply assembly through a floating discharging pipe, the floating impurities are filtered through the filter box, and the filtered water is discharged into the tank body. And the cleaned wheat is conveyed to the next working procedure through the material conveying assembly at the bottom of the tank body, so that secondary contact between the wheat and the floating impurities is avoided, and the wheat cleaning efficiency is improved.

The invention discloses environment-friendly drying equipment for premixed mortar production, and relates to the technical field of premixed mortar production. The device comprises a transmission structure, the middle of the transmission structure is detachably connected with a supporting structure, the supporting structure is detachably connected with a pushing structure, the pushing structure comprises a conveying pipe, pushing rods penetrate through the conveying pipe at equal intervals, the lower portions of the pushing rods are fixedly connected with rod blocking pieces, and the rod blocking pieces are distributed at equal intervals with the axis of the pushing rods as the center; the upper portion of the push rod is fixedly connected with a rotating bearing. When the equipment is actually used, powdery ready-mixed mortar can be quickly dried, the drying efficiency of the powdery ready-mixed mortar can be improved, steam generated when the powdery ready-mixed mortar is dried can be guided, secondary contact between the steam and the ready-mixed mortar can be avoided, and then the drying efficiency of the powdery ready-mixed mortar is improved; according to the device, the powdery premixed mortar can be quickly scattered, the powdery premixed mortar can be quickly heated, and the drying efficiency of the powdery premixed mortar is improved.

This application discloses a washing and drying line for recycling PE agricultural film, relating to the technical field of plastic recycling. It includes a pretreatment module, a main treatment module, and a dewatering device. The dewatering device includes a body with a rotating drum and a rotating shaft rotatably mounted on it. The rotating shaft is coaxially arranged inside the drum and has spiral blades for propelling the material. A drive mechanism on the body drives the drum and shaft to rotate at different speeds. The body has an inlet communicating with a separation chamber and a solid outlet communicating with the separation chamber. A water guiding chamber is provided inside the drum, and several micropores communicating with the water guiding chamber are provided on the inner wall of the drum. A drain pipe communicating with the water guiding chamber is provided on the body. A pump unit is located on the side of the drain pipe away from the water guiding chamber, capable of inflating, deflating, and pumping water. This application has the effect of reducing the moisture content of the material.

The utility model discloses a biosafety cabinet with waste treatment, and particularly relates to the technical field of biosafety cabinets, the biosafety cabinet comprises a bottom frame, a filling barrel is mounted on the inner bottom wall of the bottom frame, a fixing plate is fixedly connected to the outer wall of a fixing rod, a first adjusting plate is fixedly connected to the outer wall of a transmission rod, and a second adjusting plate is fixedly connected to the outer wall of the transmission rod. A connecting rod is connected to the outer wall of the first bearing rod through a bearing, a second adjusting plate is fixedly connected to the outer wall of the second bearing rod, and a hanging ring is installed on the inner wall of the supporting frame. According to the biological safety cabinet with the waste treatment function, through the arrangement of a first adjusting plate, a connecting rod and a second adjusting plate, the problem that an existing biological safety cabinet cannot conduct rapid sealing treatment on waste is solved, so that workers can conduct rapid sealing on the waste conveniently, and the waste treatment efficiency of the workers is improved; and meanwhile, secondary contact between the waste and the environment and between the waste and workers is prevented, so that the safety of subsequent operation on the biological safety cabinet by the workers is guaranteed.