6results about How to "Guaranteed clearance" patented technology

The utility model discloses a kind of metal composite material walkway plates, comprising: footpath cantilever support, footpath cantilever support is spacedly arranged multiple along the length direction of prefabricated beam, the fixed end of multiple footpath cantilever support is fixedly connected with prefabricated beam;Steel grating frame, steel grating frame is multiple, the length direction of each steel grating frame Two ends are respectively overlapped and fixed on adjacent two footpath cantilever supports;Continuous no-alkali glass fiber felt reinforced polyurethane rigid foam plate, polyurethane rigid foam plate is multiple, and it is flatly fixed on multiple steel grating frames;Guardrail, guardrail is fixed on the cantilever end of footpath cantilever support.The footpath step plate is combined use by steel grating frame and polyurethane rigid foam plate, can greatly improve the durability of footpath step plate, and has the advantages of light weight, high strength.

A display module, a preparation method thereof, a display device and a mold. The display module comprises a display panel having a display side and a back side opposite to each other, the display panel comprising a display area, a bending area and a binding area, the bending area being connected with the display area and the binding area respectively, the bending area being bent into a curved surface towards the back side of the display panel, and the binding area being located on the back side of the display panel; the bending area is provided with a hole, one end of the hole being open on the display side of the display panel; a cover plate is covered on the display side of the display panel, the cover plate covering the display panel; a middle frame is surrounded on the periphery of the edge of the display panel and is in contact with the edge of the cover plate; a support fixing structure is located at least between the curved surface and the middle frame, and the support fixing structure covers at least part of the area on the outer side of the curved surface away from the display area of the display panel, and the support fixing structure covers one end of the hole.

This utility model discloses a packaging barrel and a material extraction device, relating to the field of chemical technology. The material extraction device includes an extraction pipe and a metal guide rod; one end of the extraction pipe has a connecting part; the extraction pipe passes through the barrel body via an extraction channel, and the connecting part is assembled and connected to a connecting seat; one end of the metal guide rod is hinged to the connecting part; the metal guide rod passes through the barrel body, and the end of the metal guide rod facing away from the connecting part abuts against the inner liner bag inside the barrel; When the material extraction device provided by this utility model is extracted from the packaging barrel, the metal guide rod can, on the one hand, provide support for the inner liner bag inside the packaging barrel, preventing the inner liner bag from sticking to the opening of the extraction pipe as the material decreases, ensuring extraction efficiency; on the other hand, the metal guide rod conducts communication between the material inside the barrel and other external components, effectively removing static electricity inside the barrel and ensuring safety during the extraction process.

An image projection device comprises: a light source (10); a control unit (50) that generates image light based on image data and controls the emission of image light from the light source; a scanning unit (12) mounted on a frame worn on a user's face and scanning the image light emitted from the light source in two dimensions; a light guide member (30) mounted on the frame and positioned in front of the user's eyes, formed of a glass material that allows image light emitted from the scanning unit at different times to pass through internally, having multiple reflective surfaces that reflect the image light, so that multiple image light reflected by the multiple reflective surfaces converge at a convergence point (62) in the user's eyes and illuminate the retina; a reflector (20) mounted on the frame, so that multiple image light emitted from the scanning unit converges at a convergence point (60) near the light guide member and is incident on the light guide member; and a lens (24) positioned at the convergence point (60), so that the image light is incident as diffused light onto the reflective surface of the last segment of the light guide member.

The utility model discloses a weft knitting cloth relates to the field of textile, and its technical scheme main points are: including base layer, the base layer is woven with hydrophobic yarn and cotton yarn, and the inner side of base layer forms the convex part, still be equipped with a plurality of reinforcing color yarn on the base layer, and reinforcing color yarn adds on cotton yarn and forms the reinforcing part on the base layer, is equipped with a plurality of convex stripe on reinforcing part, still is woven and forms the air hole on the base layer. The convex part protrudes in the inner side of base layer, and the convex part is not easy to produce adhesion with skin under the action of sweat, thereby reduces the possibility of the inner side of base layer and skin adhesion, forms the convex stripe through the after finishing means, thereby makes the outer side of base layer and external dress not easy to fit, and then makes the clearance of the outer side of base layer guaranteed, and the air hole is not easy to be blocked in this way setting both ends, thereby guarantees the air permeability of base layer whole, and cotton yarn has the characteristics of good hygroscopicity, guarantees the hygroscopicity of base layer whole.

This utility model discloses a spray curing device for concrete silo structures, comprising a winch located on a slipform operating platform, and an inner and outer annular spray pipes located on the inner and outer sides of the silo structure, respectively. Both spray pipes are suspended from the winch's wire rope, and multiple spray nozzles and support springs are spaced apart on the side of each pipe closest to the silo structure. The length direction of the support springs is consistent with the radial direction of the silo structure, and the end closest to the silo structure abuts against it. This utility model utilizes a winch to suspend the inner and outer annular spray pipes on the slipform operating platform, and provides support springs on the side of each pipe closest to the silo structure to ensure the clearance between them and the silo structure. The position of the spray pipes can be flexibly adjusted by the winch, thereby achieving a large-area spraying operation unaffected by the raising and lowering of the slipform operating platform, and without affecting construction efficiency.