5results about How to "Improve structural support" patented technology

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 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.