6results about How to "No collapse" patented technology

The invention relates to the technical field of medical instruments, in particular to an enteric cavity segment filling controllable device for colon cancer preoperative T staging, which comprises a central mandrel, a flexible head end cap is arranged at the foremost end of the central mandrel, and a near-end balloon inflating pipeline, a far-end balloon inflating pipeline and a main pipeline which are mutually independent are arranged in the central mandrel; the near-end balloon is arranged on the central mandrel in a sleeving manner and is communicated with the near-end balloon inflating pipeline; the far-end balloon is arranged on the central mandrel in a sleeving manner, is positioned on the far side of the near-end balloon and is communicated with the far-end balloon inflating pipeline; at least two main pipeline lateral holes are formed in the tube wall of the central mandrel between the near-end balloon and the far-end balloon, are communicated with the main pipeline and are used for injecting a contrast agent or normal saline into the closed enteric cavity section between the two balloons. The near-end balloon and the far-end balloon are synchronously filled at the two ends of a target intestinal segment to form a closed segment, and a contrast agent is uniformly injected through lateral opening, so that the intestinal wall is fully expanded and does not collapse, and the display definition of the five-layer structure of the intestinal wall is remarkably improved.

The application relates to the technical field of catalyst preparation, in particular to a kind of organic solvent-resistant recyclable supported palladium catalyst and its preparation method and application, which comprises carrier and the palladium active component supported on the surface and in the channel of the carrier, the carrier is the modified mesoporous metal oxide-activated carbon composite carrier resistant to organic solvent, the palladium active component is palladium complex, the loading amount of the palladium active component is 0.5%-5% of the mass of the carrier;The modified mesoporous metal oxide-activated carbon composite carrier is composed of mesoporous metal oxide and activated carbon after modification by silane coupling agent, and the mesoporous metal oxide is one or more of mesoporous titanium dioxide, mesoporous aluminum oxide and mesoporous zirconium oxide;Solve the problem that homogeneous palladium catalyst used in suzuki-miyaura coupling reaction in the prior art cannot be recycled, the cost is high, the product purity is affected, and the existing supported palladium catalyst has poor organic solvent resistance, low catalytic activity and poor recycling stability.

The invention discloses a convenient folding scooter for old people. The convenient folding scooter comprises a bogie, a front frame and a rear frame, by means of the collaborative folding structure, synchronous folding of the frame, the steering handlebar and the cushion frame is achieved, step-by-step operation is not needed, integral folding can be triggered only by pulling the control handle, the operation steps are reduced to one, the front frame and the cushion frame of the convenient and fast folding old people mobility scooter get close synchronously during folding, the whole frame is folded downwards along the hinged position, and the operation is convenient and fast. The size is obviously reduced after folding compared with an unfolded state, home storage and automobile transportation are facilitated, the application scenes cover home riding instead of walk, short-distance travel and the like, and the high practical value is achieved.

The utility model provides a kind of device for the integrity connection of auxiliary empty layer full steel climbing frame wall support, belong to building engineering construction technical field, including I-beam, L-shaped embedded screw rod and jacking rod, the L-shaped embedded screw rod is respectively embedded in empty layer concrete column, and the one end of L-shaped embedded screw rod extends the outside of concrete column, two the concrete column is set on concrete beam slab, the I-beam is set on one side of two concrete columns or between two concrete columns, if I-beam is set on one side of two concrete columns, the one end of L-shaped embedded screw rod is connected with steel beam support, the I-beam is connected on steel beam support, if I-beam is set between two concrete columns, the one end of L-shaped embedded screw rod is connected with connecting seat, the I-beam is connected on connecting seat, the jacking rod is respectively interval setting between I-beam and concrete beam slab.

The invention relates to the technical field of faucets, and discloses a sectional faucet and a machining method thereof.The machining method comprises the following steps that materials are mixed, specifically, 100 parts by mass of metal powder and 8.93-9.89 parts by mass of a binding agent are mixed to be uniform according to the matching, and a mixture is obtained; injection molding: adding the mixture into an injection molding machine, injecting the mixture into a corresponding mold under pressure, and after injection molding is completed, demolding after cooling and taking out an injection-molded part; the injection molding part is put into a pre-degreasing furnace to be subjected to pre-degreasing, a pre-degreased part is obtained, and the pre-degreasing temperature is 90-150 DEG C; the pre-degreasing time is 15.5 to 17.5 hours; the pre-degreased part is put into a degreasing sintering furnace to be further degreased and sintered, a sintered part is obtained, the degreasing temperature in the degreasing sintering process is 400-850 DEG C, the degreasing time in the degreasing sintering process is 10-11 hours, the sintering temperature in the degreasing sintering process is 1000-1400 DEG C, the sintering time in the degreasing sintering process is 11-13 hours, and the sintering temperature in the sintering process is 1000-1400 DEG C; according to the invention, product deformation, cracking and collapse are effectively prevented.

The application provides a non-fluorine-coated diaphragm, a preparation method thereof, and a secondary battery. The non-fluorine-coated diaphragm comprises a base film and a composite coating layer coated on at least one side of the base film. The composite coating layer comprises a first coating layer and a second coating layer, and the first coating layer is arranged between the second coating layer and the base film. The first coating layer comprises first inorganic particles and second inorganic particles. The second coating layer comprises third inorganic particles and polymer particles. The polymer particles are non-fluorine polymers. The lower surface of the polymer particles is tangent to the first coating layer, and the polymer particles are filled in the second coating layer. When the temperature in the battery cell rises, the non-fluorine-coated diaphragm can effectively block the charging and discharging of the battery cell. When the temperature in the battery cell returns to normal, the swelling of the polymer particles decreases, the coverage of the polymer particles in the composite coating layer decreases, and the battery cell can operate normally again. The non-fluorine-coated diaphragm does not deteriorate the internal resistance and cycle performance of the battery cell, and simultaneously improves the heat resistance of the non-fluorine-coated diaphragm at high temperatures.