4results about How to "Cause a burden" patented technology

The invention belongs to the field of agriculture, and particularly relates to a wild vegetable natural composite preservative and a preparation method thereof, the wild vegetable natural composite preservative is prepared from the following raw materials by weight: 0.6-0.9 part of a mixed flavone extract, 1-2 parts of L-malic acid, 2-3 parts of sodium lactate, 10-20 parts of a glucose solution, and 20-30 parts of glycerin. The natural composite preservative is prepared by adopting a method for extracting flavone from plants, and the prepared product is healthy and safe to use and has excellent preservative and fresh-keeping effects. L-malic acid is used as a pH regulator, so that the pH value of the preservative can be maintained in a proper range, the growth of microorganisms and the activity of enzymes are inhibited, and the preservation effect is further improved.

The utility model relates to the technical field of shaft sealing devices of spiral conveyors, in particular to a shaft sealing assembly of a spiral conveyor, which comprises a spiral outer pipe layer and a sealing bottom plate, a layer of isolation pipe is arranged in the spiral outer pipe layer, the sealing bottom plate is arranged at the bottoms of the isolation pipe and the spiral outer pipe layer, and a rotating shaft is arranged in the isolation pipe. A spiral blade arrangement outline is drawn on the spiral outer pipe layer, an error combination block is arranged between the isolation pipe and the spiral outer pipe layer, an end sealing device is arranged on the right side of the rotating shaft, and a meshing end is arranged on the right side of the end sealing device. The device has the advantages that the shaft sealing device adopted by the device not only enables the spiral blade to work normally, but also prevents conveyed materials from being in contact with the rotating shaft, the transmission shaft is well protected on the basis, the device is special in design but simple to use, a user can master the device quickly, and the device is convenient to use. And the use is quicker and labor-saving.

The invention relates to the technical field of greenhouse environment monitoring systems, and discloses a greenhouse environment monitoring system, which comprises a plurality of end hanging brackets fixed on a top beam on a steel frame structure in a greenhouse through bolts, and the end hanging brackets are used for hoisting and supporting a cantilever sliding rail. A reciprocating circulating moving part is arranged in the cantilever sliding rail and used for driving a telescopic arm arranged at the bottom of the cantilever sliding rail in a sliding mode, so that the telescopic arm can move front and back along the cantilever sliding rail, and then large-stroke displacement in the greenhouse can be achieved; in addition, an integrated monitor used for monitoring is fixed to the lower end of the telescopic arm. Compared with the prior art, the structure is more reasonable, and excessive burden cannot be caused to an original steel frame structure of the greenhouse; the adjusting and monitoring range of the single integrated monitor is wider, the power supply circuit is optimized through the design of the conductive sliding rail, and the possible wire flying phenomenon of the patent is avoided.

The application relates to the field of medical appliances, in particular to a hard paper splint which comprises a yellow paperboard layer and a connecting layer, the yellow paperboard layer is provided with at least two layers, the connecting layer is provided with at least one layer, the connecting layer is located between the adjacent two yellow paperboard layers, the connecting layer is used for connecting and fixing the adjacent two yellow paperboard layers, and the yellow paperboard layer and the connecting layer are both provided with air permeation holes. The application has the effects of good air permeability, low price, simple use, safety and reliability.