43results about How to "Sufficient structural stability" patented technology

A respiratory mask for use with a patient, and that is suited for use with children, includes a flexible cushion arranged to interface with and deliver air to the patient's nose. The cushion has a tube connection portion at one or both sides adjacent the patient's nares, the tube connection portion being arranged to connect to an air delivery tube. This location, plus the very low profile of the mask, allows a patient (e.g. an infant) to sleep on their face more comfortably. A more rigid support structure adjacent the cushion is provided to stabilize the cushion and prevent it from collapsing. Headgear is also provided and arranged for releasable attachment to the support structure.

A heat resistant austenitic stainless steel with high strength at elevated temperatures, good steam oxidation resistance, good fire side corrosion resistance, and a sufficient structural stability, suitable for use in boilers operating at high temperatures has a composition (by weight) of. 0.04 to 0.10% carbon (C), not more than 0.4% silicon (Si), not more than 0.6% manganese (MN), 20 to 27% chromium (Cr), 22.5 to 32% nickel (Ni), not more than 0.5% molybdenum (Mo), 0,20 to 0.60% niobium (Nb), 0.4 to 4.0% tungsten (W), 0.10 to 0.30% nitrogen (N), 0.002 to 0.008% boron (B), less than 0.05% aluminium (Al), at least one of the elements Mg and Ca in amounts less than 0.010% Mg and less than 0.010% Ca, and the balance being iron and inevitable impuities.

The invention discloses an aerial environment monitoring terminal and an environmental emergency monitoring and deploying system. The aerial environment monitoring terminal comprises an unmanned aerial vehicle, a pod, an air inlet, an air outlet, a sensor cabin, a holding portion, a signal processing portion, a GPS (global positioning system) module and a wireless communication module, wherein the pod is mounted on the unmanned aerial vehicle and comprises a pod body and a cover plate covering the pod body, the air inlet and the air outlet are formed in the pod body, the sensor cabin is arranged in the pod body and communicated with the air inlet, the holding portion is arranged in the pod body and used for holding an air pump, and the signal processing portion is arranged in the pod body. The aerial environment monitoring terminal and the environmental emergency monitoring and deploying system have the advantages that a monitoring means aiming at upper atmosphere pollutants is provided, and upper-air gaseous pollutant emission areas that personnel cannot reach can be monitored effectively.

An airfoil component having a body having a leading edge and a trailing edge, a ceramic casting insert for making the component and the method for making the component. The component includes an internal cooling passageway and an elongated opening in communication with the internal cooling passageway. The opening is configured with a geometry that provides structural stability during casting and has a cross-section that sufficiently restricts airflow through the opening to provide efficient component operation. The casting insert includes outer edge projections and a web portion corresponding to the geometry of the openings when cast around the insert. The method includes casting the airfoil component around the casting insert and removing the insert to provide the component having the openings.

A lithium ion battery having an anode, an electrolyte, and a cathode comprising nano-structured carbon in electrical communication with LiFePO₄. The cathode of the lithium ion battery of the present invention has sufficient structural stability to maintain at least 90-99 percent of the specific capacity of the cathode over 500 charge/discharge cycles.

A frame for a pressure washing device is provided. The frame comprises at least one tubular member and a plurality of bends are provided in the tubular member. The frame is preferably devoid of a support plate and is adapted to receive at least one of a power source and a pump that is directly mounted to the frame.

The invention provides a 3D printing sand mould which comprises an inner-layer sand mould and an outer-layer sand mould. The inner-layer sand mould is provided with an inner surface where a casting is molded, and an outer surface opposite to the inner surface, wherein the inner-layer sand mould is contained inside the outer-layer sand mould, and the inner-layer sand mould is connected with the outer-layer sand mould through a middle-layer sand mould; and the middle-layer sand mould comprises a plurality of column zones and solid zones arranged between adjacent column zones in a filling manner, each column zone comprises a plurality of cylindrical rings which extend in the axial direction and are connected with each other in the radial direction, one end of each column zone in the axial direction is connected with the outer surface, and the other end of each column zone in the axial direction is connected with the outer-layer sand mould. The invention further provides a method for manufacturing the above sand mould. The 3D printing sand mould aims at reducing the cost for printing the 3D printing sand mould, shortening the period for printing the 3D printing sand mould, and guaranteeing the whole intensity and stability of the 3D printing sand mould.

The invention provides a hydraulic power self-stabilization type underwater construction cofferdam. The cofferdam is formed by splicing a plurality of water stop modules. Each water stop module comprises a baffle and a rubber bottom plate, wherein a steel pressing plate is arranged on the periphery of the upper portion of the rubber bottom plate, the rubber bottom plate is internally provided witha plurality of ventilation holes, a steel plate combined structure is adopted in the baffle, the baffle is internally provided with a plurality of transverse steel beams and a plurality of vertical air guiding pipes, and the top of the baffle is provided with air guiding holes. The upper ends of the air guiding pipes are connected to the air guiding holes, and the lower ends of the air guiding pipes communicate with the ventilation holes. A plurality of steel plates are combined and fixed through the transverse steel beams, the bottoms of the baffles are fixed to the rubber bottom plates, andhydraulic telescopic rods are arranged between the steel pressing plates and the upper ends of the baffles. The hydraulic power self-stabilization type underwater construction cofferdam has the beneficial effects that by means of the device, on the premise that normal running of a water delivery channel is not influenced, the temporary construction cofferdam is constructed at the local damage position in a riverway, local repairing and pouring of concrete are finished, the beneficial effects of mobility and convenient mounting and dismounting are achieved, enough structure stability and anti-skid stability are achieved, the repeated utilization performance of the equipment is good, the manufacturing cost is low, and good development space is achieved in future.

Metallurgical reactor for the production of cast iron, consisting of a metal casing internally lined, at least partially, with refractory material and provided, in the region of the top closure, with a duct through which high-temperature ferrous material is introduced, said reactor being equipped with a first series of lances for injecting the comburent gas, which are suitably directed and arranged on at least a first bottom level situated in the vicinity of the crucible for collecting the cast iron and through which, in association with a comburent gas, coal of suitable grain size is blown by means of a suitable carrier gas. Said duct has suitable cooling means and is provided, in the bottom terminal part, with nozzles for blowing in compressed gas. The middle zone of the casing of the reactor is lined internally with refractory material, pockets for receiving plates made of metal which is a good heat conductor being formed in said lining, said plates being provided on their side directed towards the outside of the reactor with heat exchanger means for cooling thereof.

The invention discloses an aerospace-used star quad communication cable and a manufacturing method thereof. The aerospace-used star quad communication cable comprises a cable core; and the cable core is sequentially coated with a wrapping layer, a shielding layer and a sheath. The aerospace-used star quad communication cable is characterized in that four core wires are paired and are subjected to star quad with a filling strip as a center to form the cable core; a multi-core inner conductor is wrapped with an insulated layer to manufacture each core wire; the insulated layer has a two-layer structure, the inner insulated layer is a microporous polytetrafluoroethylene thin film, and the outer insulated layer is a polytetrafluoroethylene green tape; the shielding layer has a silver-plated copper wire double-layer braided structure; and both the sheath and the filling strip are made of an ethylene-tetrafluoroethylene copolymer. The aerospace-used star quad communication cable provided by the invention can perform gigabit transmission, and has the advantages of high radiation resistance, high electromagnetic shielding performance, light weight, good flexibility, high temperature resistance, low delay, low attenuation, impact resistance and the like.

The invention discloses a peripheral nerve scaffold including an external sleeve tube and packing disposed therein. The packing is a three-dimensional framework formed by reeling a yarn mesh made frombio-ink. The invention also discloses a preparation method of the peripheral nerve scaffold. The peripheral nerve scaffold has the bionic factors, such as structure and composition, of the natural peripheral nerve; on the basis that the magnesium alloy external sleeve tube guarantees biocompatibility, the scaffold has sufficient structural stability. During manufacturing, the packing can reduce the demand on shaping strength of ink, so that selection range of the packing is enlarged, and more bio-functions may be achieved in the ink. The two-dimensional yarn mesh is formed through 3D-printing, and then the yarn meshes are stacked or reeled to form the packing framework, wherein structure and permeability of same can be accurately regulated. The framework is infused or infiltrated with special functional components, so that the packing has corresponding biological features, e.g. promoting growth of axons or promoting vascularization.

The invention discloses a vascular stent monomer and a vascular stent, and relates to the technical field of medical instruments. The vascular stent monomer comprises a bottom face a, a bottom face band edges. The bottom face a and the bottom face b are parallel to each other, are polygonal, and are composed of all sides of a polygon, the projection of the bottom face a and the projection of thebottom face b are included in the bottom face b, each peak on the bottom face a is connected with the close peak on the bottom face b through the edges, each peak of the bottom face a and each peak ofthe bottom face b are separately provided with only one edge and connected with one edge, and the edges comprise the Y-shaped edges. The vascular stent is formed by connecting multiple vascular stentmonomers, except for the two vascular stent monomers located at the head and the tail of the vascular stent respectively, the bottom face a of any one vascular stent monomer is connected with the bottom face a of another vascular stent monomer, and the bottom face b of any one vascular stent monomer is also connected with the bottom face b of another vascular stent monomer.

The invention provides a manufacturing method for a vehicle frame tube. The method comprises the following steps of: firstly, preparing a tubular base material, wherein the tubular base material is provided with an outer tube, an inner tube positioned in the outer tube, a plurality of ribs connected between the outer tube and the inner tube; secondly, cutting part of the ribs at the two ends of the tubular base material so as to form a forming space between the cut positions of each rib and the outer tube; and finally, extruding the two ends of the outer tube to ensure that the two ends of the outer tube pass through the forming space to be deformed and the outer tube is spherical to finish the manufacturing of the vehicle frame tube. By the method, the material cost can be saved; the spherical vehicle frame tube is manufactured; and the vehicle frame tube manufactured by the method can still provide enough structural strength and structural stability through the ribs of the vehicle frame tube under the condition that the whole weight is reduced.

The invention discloses an atomic force microscope colloid probe surface modification method, and belongs to the technical field of atomic force microscope probe modification. The invention provides ahigh-success-rate colloid probe synthesis and surface modification method, and the interaction force between colloid and minerals can be measured more accurately. The method comprises the following steps: immersing colloidal microspheres in a FeOOH solution for a period of time, taking out the colloidal microspheres, drying, putting the colloidal microspheres in a functional group modification solution for a certain period of time, and carrying out cold drying; dipping a needle head of a 30G injector in a minimum amount of epoxy resin mixed liquid, transferring the epoxy resin mixed liquid tothe front end of a cantilever of the probe, sucking the modified colloidal microspheres by using a new needle head, transferring the colloidal microspheres to the cantilever, and curing epoxy resin to obtain the functional group modified colloidal probe. According to the invention, the yield of the colloid probe can be greatly improved, the surface roughness of the functional group modified probeis reduced, and the experimental error is greatly reduced.

The invention discloses a tool adjusting mechanism for a plate shearing machine. According to the technical scheme, the tool adjusting mechanism is characterized by comprising a lower blade fixedly mounted in a plate shearing machine body and an upper blade matched with the lower blade for shearing; the top of the upper blade is clamped in an opening of a clamping plate in a rightward square bracket shape, and the clamping plate in the rightward square bracket shape and the upper blade are connected through a plurality of first locking bolts. A first connecting plate is welded and fixed to thetop of the clamping plate in the rightward square bracket shape. A second connecting plate is horizontally and adjustably mounted above the first connecting plate through a plurality of second locking bolts. A guide clamping block is welded and fixed below the second connecting plate, and a clamping groove allowing the guide clamping block to slide is formed in the first connecting plate; and when the tool adjusting mechanism for the plate shearing machine is used, it can be guaranteed that the upper blade has enough stability on the premise of guaranteeing convenient clearance adjustment, and it is avoided that the clearance of the upper blade greatly changes after being used for a period of time.

An optical fibre strain sensor array comprises several sensor support panels spaced in its longitudinal direction and at least one connecting member extending in the longitudinal direction, which mechanically interconnects the sensor support panels. An optical fibre is supported by the sensor support panels and the connecting member. The optical fibre extends with the connecting member between the sensor support panels and forms a curve on the sensor support panel, the curve including at least one portion of the optical fibre that extends in the transverse direction. The width of the connecting member is substantially less than the width of the sensor support panels, such that the connecting member is capable of flexure in the transverse direction. This has the advantage that the connecting member can be flexed to take up any slack during installation of the optical fibre strain sensor array in a wind turbine blade and can be fitted to the turbine blade even if the blade has a conical shape.

The invention discloses a pipe baking device used for pipeline construction. The pipe baking device comprises a pipe bending device and a limiting device; the pipe bending device comprises an assemblybase and a pipe bender; the pipe bender comprises a bottom supporting plate, side supporting plates and a rotation mechanism; a rotary shaft is connected between the side supporting plates; rotary discs are fixedly arranged on two sides of the rotary shaft; the rotary discs sleeve the rotary shaft; one side of the rotary shaft is connected to a rotary handle; the rotary handle is arranged on theouter side of the corresponding side supporting plate; a positioning plate is arranged between the two rotary discs; a node component is arranged on the positioning plate; the limiting device comprises an upper limiting component and a lower limiting component; and an upward pipe bender is arranged on the upper limiting component. By adopting the pipe baking device, bending degrees with two opposite directions and different angles can be manufactured at the same time according to needs; and the pipe bending effect of long pipelines and short pipelines can be realized by adjusting the positionof the limiting device; the integral structure is more firm and stable.

The invention discloses a movable contaminant barrier applied to the field of water body environment engineering. The movable contaminant barrier comprises an enclosure unit, a steel pipe pile anchored in water and a bank retaining wall arranged on a bank. One end of the enclosure unit is movably connected with the steel pipe pile, and the other end of the enclosure unit is movably connected with the bank retaining wall. The enclosure unit is capable of doing vertical lifting motion along the steel pipe pile and the bank retaining wall. The enclosure unit comprises a floating body floating on the water surface, a flexible connecting piece, enclosure screen cloth and a balancing weight chain sequentially arranged from top to bottom. One end of the floating body is mounted on the bank retaining wall in a vertically-movable manner. The other end of the floating body is mounted on the steel pipe pile in a vertically-movable manner. Auxiliary balancing weights are mounted on multiple chain rings of the balancing weight chain. Multiple anchoring pieces playing an auxiliary balancing weight function are movably connected to the balancing weight chain. The movable contaminant barrier can well cope with harsh working conditions of heavy sea, large water level changes and the like.

A buckle has a main body, a strap retaining bar connected to the main body, two locking legs formed as separate pieces from the main body and pivotably connected to the main body; and a spring disposed between the two locking legs. The spring is attached to both of the locking legs, and exerts a force against the locking legs when they are pressed inward toward each other. The spring keeps the locking legs in an outwardly tensioned position, but does not let the legs flex outwardly in an unlimited manner, since the spring is directly connected to the legs. The spring allows the main body and locking legs to be formed of an inflexible material, such as metal. The locking legs are separate pieces from the main body and are connected to the main body via a pivot pin or other hinged mechanism.

The invention provides a chain. The chain comprises a first chain body and a second chain body, wherein the first chain body and the second chain body are arranged side by side and share one pin shaft, and the first chain body and the second chain body are each provided with a first tail end chain link, a second tail end chain link and a tail end pin shaft; the first tail end chain links are arranged at one end of the first chain body and the second chain body, and the second tail end chain links are located at the other end of the first chain body and the other end of the second chain body; and a connecting chain link of the chain comprises at least one clamping piece, a connecting pin shaft, a first connecting piece and a second connecting piece. The clamping piece is located between the first chain link and the second chain link and is provided with a first joint portion, a second joint portion and at least one connecting pin shaft hole, wherein the first joint portion and the second joint portion can be connected with the two tail end pin shafts respectively; the connecting pin shaft penetrates the connecting pin shaft hole of the clamping piece; the first connecting piece and the second connecting piece are mounted on the outer side of the first chain body and the outer side of the second chain body, are each provided with at least three holes and are suitable for being matched with the tail end of the first tail end pin shaft, the tail end of the second tail end pin shaft and the tail end of the connecting pin shaft. The invention further discloses a chain coupler with the chain. The chain and the chain coupler can be mounted in small and narrow mounting space, and sufficient connecting strength and sufficient structural stability are achieved.