11results about How to "Improve structural support" patented technology

The invention relates to a snack food 3D printing device based on double materials and three nozzles and application of the snack food 3D printing device, and belongs to the technical field of food processing and equipment manufacturing. A double-material double-nozzle 3D printing system and a single-nozzle auxiliary gel system are arranged in the printing platform system; the air supply system is connected with the double-material double-nozzle 3D printing system and the single-nozzle auxiliary gel system through pipelines. A conveying system is further arranged in the printing platform system and connected with the physical field auxiliary drying system. According to the preparation method, collaborative technologies such as double-material combined gel, double-nozzle 3D printing, single-nozzle dehydration coagulation acceleration and physical field curing or drying are adopted, the leisure hawthorn product processing problems that a nozzle of single-nozzle 3D printing is prone to blockage, double-nozzle 3D printing is prone to collapse, the printing efficiency is low, and a printed product is simple in shape are solved, the application range of the 3D printed product is widened, and the production cost is reduced. And a technical support is provided for development of specially-shaped haw snacks.

The utility model discloses a visual system and VR equipment comprising the visual system. The visual system comprises a lens barrel, a lens group and a spacing element group, the lens group and the spacing element group are assembled in the lens barrel, the lens group comprises a first lens, a reflective polarizing element, a quarter-wave plate, a second lens and a third lens which are sequentially arranged from a first side to a second side along an optical axis, the first lens has positive focal power, the second lens has positive focal power or negative focal power, and the third lens has positive focal power or negative focal power. The third lens has positive focal power; the spacing element group comprises a lens barrel auxiliary element which is located between the front end of the lens barrel and the first lens and abuts against the first side face of the first lens, and a first spacing element which is located between the first lens and the second lens and abuts against the second side face of the first lens. The inner diameter d0s of the first side end surface of the lens cone and the effective focal length f of the visual system satisfy 1.8 lt; d0s / flt; 2, 3; the inner diameter d0bs of the first side surface of the lens barrel auxiliary element, the inner diameter d0bm of the second side surface of the lens barrel auxiliary element and the curvature radius R1 of the first side surface of the first lens satisfy 0.1 lt; (d0bs + d0bm) / R1lt; and 0.95%.

The utility model relates to the technical field of children's shoes, and provides a tying-free children's shoe with an all-directional binding function, the tying-free children's shoe comprises a sole and an upper, and the upper is provided with a welt for a human foot to stretch in; a binding rope penetrates through the surface, located on the instep portion of the human body, of the upper in a crossed mode, the binding rope bypasses the surface, located on the ankle portion of the human body, of the upper and extends to the heel portion, located on the human body, of the upper, and the upper is provided with an adjusting piece used for adjusting the tightness of the binding rope. According to the tying-free children shoes with the all-directional binding function, the fitting degree between the uppers and the feet of the human body can be improved.

The utility model provides a mixing shelf of a red wine cabinet, which comprises a mixing shelf which is arranged in the red wine cabinet and is used for placing bottled red wine, the mixing shelf is provided with a step-shaped structure and forms two layers with height difference, the mixing shelf comprises an upper layer placing area and a lower layer placing area, the red wine bottles are horizontally placed on the upper layer placing area, and the bottom of the upper layer placing area is provided with a suspended or hollow structure; the lower-layer placing area is used for horizontally placing the red wine bottles, and the bottle necks of the red wine bottles in the lower-layer placing area can naturally extend to the lower part of the bottom of the upper-layer placing area; the mixing layer frame is arranged in a left-high and right-low or left-low and right-high mode when being observed from the front face of the red wine cabinet. By means of the stepped double-layer design, the upper-layer containing area and the lower-layer containing area are used in cooperation, the space between the upper layer and the lower layer is effectively utilized, red wine bottle bodies of the lower-layer containing area can be directly exposed to the cabinet door, the types and labels of red wine can be conveniently checked without taking out the red wine bottle bodies, and the red wine display effect is improved.

The utility model discloses a kind of concrete roofing air pipe rainproof devices, solve the problem of rain leakage of air pipe through concrete roofing.The device includes air pipe rainproof device, indoor air pipe, outdoor air pipe, air pipe support, concrete roofing air pipe hole, roofing floor, roofing insulation layer, roofing waterproof layer, roofing hole flanging and cement mortar;Air pipe rainproof device is composed of indoor and outdoor connecting air pipe and rain cover, indoor and outdoor connecting air pipe two ends are connected indoor, outdoor air pipe respectively through air pipe flange, and fixed by air pipe support and roofing hole flanging;Rain cover contains hem, skirt, vertical edge and middle support column, can be enclosed rainproof space and cover hole flanging, hole gap is blocked with non-combustible material.The device is adapted to rectangle / circle, heat preservation / cold preservation / non-heat preservation metal air pipe, rainproof effect is remarkable, structure is stable and durable, construction is convenient, can guarantee indoor environment and ventilation system safe operation.

The invention provides a core rod structure and an energy storage device, a core rod body is embedded in a roll core, two ends of the roll core are respectively provided with a positive current collector and a negative current collector, the periphery of the roll core is sleeved with a shell, one end of the shell is provided with a cover plate assembly, the cover plate assembly is respectively provided with a positive pole and a negative pole, the positive pole is connected to the positive current collector, and the negative pole is connected to the negative current collector. The cathode column is connected to the cathode current collector, the core rod body is provided with a cooling channel, and the outlet end and the inlet end of the cooling channel are both located at one end of the core rod body. According to the core rod structure and the energy storage device, the cooling channel is formed in the core rod body, a cooling medium can penetrate into the cooling channel so that temperature control can be conducted on the core rod body and the externally-arranged winding core, the cooling channel is of a U-shaped structure, the outlet end and the inlet end of the cooling channel are located on the same side, installation is convenient, and cost is low. And the cooling medium can be conveniently subjected to circulating operation, the heat exchange path of the cooling medium is increased, and sufficient heat exchange can be conducted on the core rod body.

The utility model relates to the technical field of ladder trucks, and discloses a wheel structure of a ladder truck, which comprises a hub and an arranged tire, and a shaft body is additionally arranged at the central position of an inner cavity of the hub; the sliding grooves are formed in the periphery of the surface of the shaft body, sliding seats are slidably connected to the front, the rear and the center of the top ends of the sliding grooves, and supporting plates are connected to the tops of the sliding seats; and the spacing blocks are arranged at the bottoms of the inner cavities of the sliding grooves and correspond to the bottoms of the corresponding sliding seats. According to the wheel structure of the ladder truck, the sliding seats of the supporting plates move in the sliding grooves of the shaft body, the outer sides of the supporting plates are tightly attached to the inner walls of the hubs, the overall number of the supporting plates can be increased through the spacer blocks with different lengths, the using number of the supporting plates can be increased by adopting the mode, and therefore the use cost is reduced. Therefore, the overall structure supporting force of the wheel can be greatly improved; meanwhile, the spacing blocks with different lengths can be used for adjusting the distance between two adjacent groups of supporting plates.

The mute elevator shaft is arranged outside an elevator and comprises a plurality of hollow plate units arranged in a connected mode, each hollow plate unit comprises a concrete shell and a plurality of layer plate assemblies arranged in the concrete shell, the plurality of layer plate assemblies and the concrete shell are enclosed, and a plurality of cavities are formed in the hollow plate units. And the cavity is filled with a sound absorption part. According to the mute elevator shaft, the elevator shaft body is formed by splicing the multiple hollow plate units, the concrete shell is used for providing a stable structure foundation, the multiple cavities defined by the internal laminate assemblies and the shell are matched with the filled sound absorption parts, a sound insulation and absorption system is constructed, and starting from the overall structure, the sound wave propagation path is divided through the cavity structures, and the sound absorption effect is improved; and noise energy is directly adsorbed by means of the sound absorption part, primary efficient weakening of various noise in elevator running is achieved, convenience is improved through the modular splicing mode, and the structural stability and the mute requirement are both considered.

The invention belongs to the field of tissue engineering and wound repair, and relates to a composite hydrogel dressing for chronic wound repair and a preparation method and application thereof.The preparation method comprises the steps that S1, cinnamyl aldehyde is dispersed in a gelatin aqueous solution, and dialysis is conducted till the solution is clear after the reaction is sufficient; freeze-drying to obtain cinnamyl aldehyde grafted modified gelatin; s2, mixing mattress removing and tissue regeneration promoting powder, the cinnamyl aldehyde grafted modified gelatin obtained in the step S1, methacrylated gelatin and a photoinitiator in a PBS solution to obtain a mixed solution; s3, adding a Ga (NO3) 3.6 H2O solution into the mixed solution obtained in the step S2 to obtain a hydrogel precursor solution; s4, the hydrogel precursor solution obtained in S3 is used for 3D printing and photocuring, and the composite hydrogel dressing is obtained. According to the invention, the medicine powder is embedded and slowly released through a three-dimensional network formed by GelMA, CA-Gel and gallium ions, so that efficient antibiosis, healing promotion and structural support on chronic wounds are realized, and the treatment effect and the use safety are improved.

The utility model relates to the field of prestressed concrete pipe piles, and discloses a prestressed concrete pipe pile structure which comprises six stress steel bars, transverse bars are fixed between every two opposite stress steel bars through steel wire winding, and tubular concrete is poured on the outer surfaces of the six stress steel bars and the outer surfaces of the transverse bars. The outer surface of the concrete is movably connected with a jacking mechanism making contact with the ground. The top supporting mechanism comprises a mounting pipe, a supporting ring, six reinforcing ribs, three positioning blocks and a ground supporting assembly. According to the prestressed concrete pipe pile structure, after the prestressed concrete pipe pile is installed, the outer surface of concrete is integrally sleeved with the top supporting mechanism, then the bearing platform is poured, the formwork for pouring is removed after solidification, the joint of the concrete and the bearing platform is further reinforced through the top supporting mechanism, and under adjustment of the ground supporting assembly, the bearing platform can be supported by the top supporting mechanism; the structural support between the bearing platform and the ground can be increased, so that the structural stability is further enhanced.

The utility model relates to the field of packaging boxes, in particular to a split mounting type environment-friendly paper packaging box. The technical problems that in the using process of a paper packaging box, due to the fact that certain protection mechanisms are not arranged at corners, the stability is not enough in the using process, most paper packaging boxes are disposable and are damaged or affected with damp in the transportation process, and the environmental protection property is affected are solved. According to the technical scheme, the assembled environment-friendly paper packaging box comprises a fixed bottom plate and further comprises a supporting and connecting assembly, a handle sleeve and an anti-collision corner. According to the packaging box, through the arrangement of the supporting and connecting assemblies, the connecting columns can be stably connected and spliced with the first side plate and the second side plate, the corner supporting effect is achieved, drying balls can be placed in the mounting grooves, damp damage is prevented, the packaging box can be used repeatedly and is more environmentally friendly, the packaging box is easier to lift and carry through a handle sleeve, and the packaging box is more convenient to use. The anti-collision corners effectively protect the corners of the bottom end of the packaging box, and abrasion and damage of the box body caused by collision are reduced.