31results about How to "Reduce or even avoid damage" patented technology

The invention provides a chrome-free tanning method for through-type fur, which comprises the following steps: (1) adjusting the pH value of the pickled fur to 4.5-6.0 with lye, and then adjusting the water content of the fur; or, using an aluminum tanning agent Pre-tan the pickled fur, then use lye to adjust the pH value of the pre-tanned fur to 4.5-6.0 and adjust the moisture content of the fur; On the condition that the transmission mesh belt drives the fur to move horizontally at a uniform speed, the tanning liquid prepared by the organic tanning agent is evenly sprayed from the flesh surface of the fur to On the skin board of the fur, control the jet velocity of the tanning liquid so that the tanning liquid is evenly distributed in the skin board of the fur; (3) Pile the fur blanks obtained in step (2) for 24-48 hours to complete the tanning. The method can effectively reduce the discharge of tanning waste liquid, avoid organic tanning agents from damaging wool fibers, and improve the quality of fur.

The invention relates to a vehicle tail carriage unit. The vehicle tail carriage unit comprises a fixed plate arranged on the lower portion of a vehicle tail. The fixed plate is provided with a cavity. A foldable carriage is accommodated in the cavity. The foldable carriage comprises a sliding plate foldable in half and a bumper baffle. The upper surface of the sliding plate is provided with a bicycle fixing device and comprises a plurality of support frames in sliding connection with the surface of the sliding plate and a bicycle tire fixing structure. The support frame can rotate relative to the sliding plate. The tire fixing structure comprises a fixed block fixed to the surface of the sliding plate and a movable block in rotation connection with the fixed block. The opposite surfaces of the fixed block and the movable block are provided with an arc-shaped groove matched with a bicycle tire. The free end of the movable block is provided with a fastener snapped to the fixed block. A bicycle can be placed on the sliding plate and fixed through the bicycle fixing device to be transported through a vehicle. The bumper baffle can play a protective role on the vehicle and the bicycle. By means of the vehicle tail carriage unit, the bicycle can be carried safely and easily.

The invention relates to a cultivation greenhouse rainwater diversion facility which comprises a first fastener, a second fastener and a diversion black film, the first fastener and the second fastener are vertically mounted on a greenhouse steel frame at intervals in the length direction of a cultivation greenhouse, and the edge of a transparent plastic film of the cultivation greenhouse is fixed to the first fastener and the second fastener. When the flow guide black film is laid on the fixed foundation between the adjacent cultivation greenhouses, the edges of the two sides of the flow guide black film are fixed to the second buckles of the cultivation greenhouses on the two sides respectively and attached to the inner side face of the transparent plastic film, and when the flow guide black film is laid on the fixed foundation in the lateral direction of the cultivation greenhouses at the edge position. The upper edge of the flow guide black film is fixed to a second buckle of the edge cultivation greenhouse and attached to the inner side face of the transparent plastic film, and the lower end of the flow guide black film is fixed to the base portion of the edge fixing foundation. According to the invention, the fixed foundations (banks) between the breeding greenhouses and in the lateral direction can be effectively prevented from being washed by rainwater and damaged, and the wind and rain resistance of the breeding greenhouses is improved.

The invention relates to a bicycle fixing structure of a vehicle tail carriage. The structure comprises a fixing plate arranged below the vehicle tail; the fixing plate is provided with a cavity inside, the cavity accommodates a foldable carriage, and the foldable carriage comprises a slide plate and a bumper plate which can be folded correspondingly; two sides of the cavity of the fixing plate are provided with guide rails, rolling wheels are arranged below the slide plate, and the circumferences of the roller wheels contact with the guide rails; the upper surface of the slide plate is provided with bicycle fixing structures, fixing blocks of the bicycle fixing structures are provided with fixing blocks units with adjustable magnetic force, magnets are arranged in guide pole gaps of the fixing block units, the magnetic induction lines formed between N poles and S poles of the magnets of the gaps penetrate the guide poles, the strength of the magnetic induction lines of panels is increased, and the attracting force applied to movable blocks by the fixing blocks is increased.