131results about How to "Not prone to collapse" patented technology

The invention discloses a light running shoe with a novel structure. The light running shoe comprises a shoe sole and a shoe upper. The shoe upper is connected with the shoe sole, a plurality of elliptical through holes which are through in the left-right directions are formed in the shoe sole, are arranged along the length direction of the shoe sole at intervals and are forwardly obliquely distributed, and strip-shaped through openings which are communicated with the ground are formed in the inner bottoms of the elliptical through holes and are positioned in a foot sole area. The light running shoe has the advantages that the elliptical through holes are formed in the shoe sole and are arranged along the length direction of the shoe sole at intervals, and damping and resilience effects of the running shoe can be greatly improved owing to the shape and the forwardly oblique distribution design of each elliptical through hole; the through holes which are flat are easy to deform under the effect of external force, and accordingly the light running shoe can deform freely.

The invention belongs to the technical field of micro-nano machining, and particularly relates to a metal micro / nano wire array and a preparation method thereof. The metal micro / nano wire array comprises a supporting layer metal sheet and metal micro / nano wires erected on the metal sheet. The metal micro / nano wire array has a large depth-to-width ratio, and the diameter and height of the metal micro / nano wire and the thickness of the metal sheet can be accurately controlled; The metal micro / nano wires are directly erected on the metal sheets and are not crossed and overlapped with one another,so that the specific surface area and the repeated utilization rate are increased; The metal micro / nano-wire array can be applied to preparation of a flexible nano device with a large depth-to-widthratio. According to the preparation method, a material with relatively good rigidity and etching stability is used as a substrate, so that the problems of collapse and the like in an etching process can be avoided, and a micro / nano wire array with a high depth-to-width ratio is obtained; In addition, according to the method, the height of the micro / nano wire can be accurately controlled by controlling the etching time.

The invention discloses a machining method for stepped ring grooves of a supercharger sliding bearing. The machining efficiency is higher, and the machining cost is lower. The machining method for thestepped ring grooves of the supercharger sliding bearing comprises the following steps that S1, the supercharger sliding bearing is prepared, the four stepped ring grooves which are evenly arranged in the circumferential direction are to be machined in the supercharger sliding bearing, and the stepped ring grooves are integrally in a fan shape and comprise the upper-layer ring grooves and the lower-layer ring grooves communicating with the outer sides of the upper-layer ring grooves; S2, holes are drilled in the circle centers, to be subjected to fillet machining, of the two ends of each stepped ring groove, and the finish machining allowance of subsequent fillets is reserved; S3, a sinking table is milled at the drilling position of one end of each stepped ring groove to serve as a cutting point of a milling cutter used for subsequent rough machining; and S4, the milling cutters are adopted for conducting rough machining and finish machining on the upper-layer ring grooves and the lower-layer ring grooves correspondingly.

The invention discloses a telescopic bridge of a high-altitude operation vehicle. The structure of the telescopic bridge comprises a cross beam, a sleeve block, a vertical rod, a hydraulic rod, a control box, a mounting and fixing device, an extension beam, a fixed connection rod, a connection plate, a lifting hook, a movable clamping groove, a pushing oil cylinder and a fulcrum block, wherein theleft side of the cross beam is vertically welded with the vertical rod; the extension beam is arranged under the cross beam and is parallel to the cross beam; the left side of the extension beam is connected with the vertical rod; the sleeve block is arranged on the left side of the lower part of the cross beam; the hydraulic rod is nested in the sleeve block through clearance fit; the control box is mounted on the vertical rod through interference fit; the mounting and fixing device is arranged under the vertical rod; two ends of the fixed connection rod are respectively connected with the connection plate and the movable clamping groove; the connection plate is mounted on the right side of the extension beam through clearance fit; the lifting hook is vertically connected with the rightside of the extension beam; the movable clamping groove is nested on the right side of the cross beam through clearance fit. The fixation of the telescopic bridge can be improved in use, so that the situation of collapse of the telescopic bridge is not easily caused; the telescopic bridge has high safety in use.

The invention relates to a cosmetic packaging blister film and a forming production line thereof. The cosmetic packaging blister film comprises a blister film body, wherein a plurality of accommodating cavities are formed in the blister film body, first positioning clamping grooves are formed among the plurality of accommodating cavities, the first positioning clamping grooves are of a downward concave shape, annular clamping grooves are formed in edges of the blister film body, and second positioning clamping grooves are formed in the annular clamping grooves; and a feeding device further comprises a stacking device, the stacking device comprises a first fixing frame, an abutting and moving assembly and a bearing assembly, wherein the abutting and moving assembly and the bearing assemblyare arranged on the first fixing frame, and the abutting and moving assembly is internally provided with a first limiting groove and a second limiting groove which are in clamping connection with theblister film body. The cosmetic packaging blister film and the forming production line thereof have the effects that the blister film can be stably driven to be stacked and accurately clamped, the stacked blister film can be driven to be conveyed and moved, the phenomenon that collapse and scattering cannot occur in the moving process is avoided, and the production efficiency can be improved.

The invention relates to a liver model and a preparation method and application thereof. The preparation method of the liver model comprises the following steps that the liver is decellularized, and the decellularized liver is obtained; the decellularized liver is reinforced with a cross-linking agent, and the liver model is obtained. The preparation method of the liver model is short in time, theblood vascular system distribution and the mechanical property of the liver model prepared by using the method are close to real liver cells, the three-dimensional structure of a blood vascular system in the liver is reserved, the overall liver model is transparent, and the blood vessels in the liver model are clearly visible; the embolization process, the distribution of an embolic agent and theembolization effect can be directly observed without a digital subtraction angiography instrument or other devices, and the storage time is long.