48results about How to "Small windward side" patented technology

The invention provides a polygonal counter flow cooling tower which has small ventilation resistance, favorable thermal performance and low energy consumption and can be completely combined with a building. The polygonal counter flow cooling tower comprises a framework, an air duct arranged at the top of the framework and a blower arranged in the air duct; wall boards are arranged on the periphery at the upper part of the framework; air inlet windows are arranged on the periphery at the lower part of the framework; packing comprising a plurality of alternate filler pieces is arranged in the frames of the wall boards; a water distribution pipe is arranged above the packing; a water distribution spray head for spraying water into clearances among the filler pieces is arranged at the bottom of the water distribution pipe; a water collector is arranged above the water distribution pipe; a reception basin is arranged at the bottom of the framework and supported by a bottom beam; a water outlet is arranged at the lower part of the reception basin; and the periphery of the framework is octagonal.

The invention relates to an improvement of anti-corrosion and anti-vibration overhead power transmission cables for overhead power transmission lines and is characterized in that the reinforced inner core of the twisted cable is a fiber resin-molded elongated body and has a 0.5-8 mm distance to the innermost conductor of the twisted cable. The inventive wire has the advantages of self-damping vibration protection function, reduced weight of the reinforced core molded from resin mixed with carbon fiber and/or basalt fiber (50-70 percent of the steel-core anti-corrosion and anti-vibration cable core), increased tensile strength (up to 2000-6000MPa), maximum applied stress up to 60 percent of breaking strength, reduced base number or altitude of towers, larger construction span, large current capacity (about doubled), reduced construction cost (by 10-20 percent), and increased service life (by 20-30 years).

The invention discloses a hoisting process for a general section of a warehouse deck of an orange juice ship, which comprises the following process steps of: dividing the general section of the warehouse deck into six deck sections, and combining the general section to form a large ring seam at a deck surrounding a hatch; measuring each deck section, calculating the weight and gravity center position of each deck section, and designing a hoisting point position according to the gravity center position; fixedly arranging a reinforcing structure at the back of the hoisting point of the deck section, and turning over the deck sections; fixedly arranging a hoisting lug at the hoisting point on the front side of each deck section; hoisting the deck sections by adopting a floating crane to rightabove the installation position on the deck surrounding the hatch, using an auxiliary precise landing limit tooling on the deck surrounding the hatch to hoist the deck sections without margins and landing the deck sections to the installation position on the deck surrounding the hatch; according to the invention, the general section of the warehouse deck is divided into six deck sections for construction, so that the problems of narrow construction space and difficult construction of workers due to the fact that the section of the warehouse deck of the orange juice ship is installed after tank bodies enter the warehouse are solved; and hoisting without margins can be achieved.

The invention is suitable for the technical field of wind tunnel tests, and provides an air inlet channel test simulation device and simulation method, the air inlet channel test simulation device comprises a model support assembly, a model support rod, a model, a flow simulator, a simulator support assembly and a flexible air suction pipe, and the model support assembly is connected with the peripheral part of the model through the model support rod; one end of the flexible air suction pipe is connected with an air outlet of the model, and the other end of the flexible air suction pipe is connected with an air inlet of the flow simulator; the flow simulator is supported on the simulator supporting assembly, and the simulator supporting assembly can be adjusted in a self-adaptive mode along with adjustment of the model supporting assembly. According to the invention, the test data quality and the test efficiency can be improved.

The invention discloses a polar region wing sail wind power direct drive robot control system. The polar region wing sail wind power direct drive robot control system comprises a trajectory planning system, a navigation control system, an obstacle and danger avoidance system and a microprocessor, wherein the trajectory planning system is connected with the navigation control system and the microprocessor and used for planning a target trajectory path for a whole wing sail robot according to a scientific investigation task; the obstacle and danger avoidance system is connected with the navigation control system and the microprocessor and used for detecting real-time road conditions through sensor elements and feeding back the road conditions to the wing sail robot for obstacle and danger avoidance; the navigation control system is connected with the trajectory planning system, the obstacle and danger avoidance system, a GPS unit and the microprocessor and controls a wing sail unit and a course control unit of the wing sail robot through a motor and a steering engine respectively. The polar region wing sail wind power direct drive robot control system is reasonable in structure, easy to realize and suitable for detection application under complex and variable climate conditions in the polar region, thereby having high engineering application value.

The invention relates to a sealed spring box for connecting a pantograph head of a pantograph with a pantograph connecting frame, and the composition is as follows: the upper part of a pantograph head coupling seat of the spring box is connected with a pantograph head carbon sliding plate through a bolt, the lower part is hinged with a U-shaped hinge support through a pin shaft, the lower part ofthe U-shaped hinge support is connected with the upper end of a piston rod through a screw, the piston rod is arranged in a piston barrel, the piston barrel is fixed on a support cylinder body through the screw, the middle part of the support cylinder body is fixed on a cylinder body mounting seat through the screw, the cylinder body mounting seat is further fixed and mounted on a pantograph headcross rod of the pantograph through the bolt, and the pantograph head cross rod is hinged with a upper arm rod of the pantograph connecting frame; and a spring is connected between the lower part of the piston rod and the bottom of the piston barrel. The device can realize self-adaption to fluctuations in hanging conducting wires of a contact net, enable the following performance between the pantograph and the net to be good, and effectively attenuate vibration caused by oscillation and impact between a vehicle body and the contact net; furthermore, the structure is compact, the weight is light, the windward is small, and the caused shaking and swing of a pantograph body are small. By adopting the sealed spring box, good current collection of a locomotive can be ensured, and the running is safe and smooth.

The invention discloses a target plate cart for comprehensive helicopter aircraft gun optical target correcting. The cart comprises a trolley, a supporting frame, a guide rod, a supporting rod, a lifting device, a supporting base, a worm gear, a worm, a connecting part, a longitudinal supporting arm, a transverse supporting arm, standard target plates and special-shaped target plates; the supporting frame transversely moves along a sliding groove in the trolley, a bottom plate is fixed to the lower rend close to the supporting frame, the lifting device and one end of at least one guide rod arefixed to the bottom plate, the lifting device and the other end of at least one guide rod are fixed to the position, above the supporting frame, of the supporting base, the supporting base is provided with the supporting rod, the worm gear and the worm, the worm is engaged with the worm gear, the supporting rod is arranged on the center of the worm gear, the worm gear is in threaded connection with the supporting rod, the upper end of the supporting rod is fixed with the longitudinal supporting arm and the transverse supporting arm through the connecting part, the longitudinal supporting armand the transverse supporting arm are perpendicular, multiple standard target plates are arranged on the transverse supporting arm, and multiple special-shaped target plates are arranged on the longitudinal supporting arm.

The invention discloses an agricultural greenhouse linkage tracking photovoltaic stent and a photovoltaic power generation system, which belongs to the technical field of photovoltaic power generation equipment. The stent comprises a column stent, a driving mechanism, guide rails and a component unit. The column stent is arranged above an agricultural greenhouse. The height of the column stent is slightly higher than the height of the agricultural greenhouse. The guide rails are fixed on the column stent. The component unit is arranged across two adjacent guide rails, and comprises a component frame, a sliding part and a connecting rod. The sliding part is arranged in the guide rails. One end of the connecting rod is hinged with the sliding part. The other end is hinged with the component frame. The driving mechanism is applied to the sliding part of the component unit. When the photovoltaic stent is used, the connecting rod is pushed to hold up or lay the component frame. According to the invention, the design thought of wind hiding and the theory of bionics are used; in one minute, the component unit automatically lays down, so that the windward surface is small and the wind resistance is reduced to ensure the safety of the stent, the system and the agricultural greenhouse; loss caused by the disaster is avoided; and the stent and the system have the advantages of simple structure, reasonable design and easy manufacturing.

The invention discloses an electric vehicle with wind-energy power assistance, comprising a vehicle body, a driving device and a generating device, wherein the driving device and the generating device are arranged in the vehicle body; the driving device is positioned at the rear-end side of the vehicle body; the generating device is arranged in a front cabin of the vehicle body; the side part of the front end surface of the vehicle body is provided with a side air inlet; the front cabin of the vehicle body is internally provided with an air discharging device leading to the outer side; and the generating device comprises a generator and a fan impeller which is positioned between the side air inlet and the air discharging device. The electric vehicle can effectively utilize certain wine energy to charge a storage battery, can effectively improve the full charge endurance and is beneficial to saving energy consumption.

The invention provides a vertical billboard, which comprises a base, a plate surface, a first elastic piece, a page rolling mechanism, a limiting member, and an energy storage driving mechanism. The base is arranged on a mounting surface and comprises a vertical rod which is vertically arranged and a cross rod which is horizontally arranged at the top of the vertical rod. The plate surface is hinged to a cross rod and can be turned over with the axis of the cross rod as the axis. The first elastic piece is arranged between the base and the plate surface and can enable the plate surface to return to the vertical position after the plate surface is turned over. The vertical billboard has the following advantages: the plate surface can rotate around the cross rod, so that the windward side ofthe billboard can be reduced through deformation when facing strong wind, and the billboard is prevented from being blown off by the wind; and with the energy storage driving mechanism, kinetic energy generated by rotation of the plate surface is converted into elastic potential energy of the energy storage driving mechanism, and the effect of driving the page rolling mechanism to switch the advertisement pages is achieved through centralized release.

The invention discloses a warning board for a municipal road. The warning board comprises a fixing plate. A first sliding groove is formed in the surface of the fixing plate, and a second sliding groove is formed in the bottom face of the fixing plate. One or more first sliding blocks are slidably mounted in the first sliding groove, and one end of each first sliding block extends outside and is fixedly provided with a warning board body through a torsional spring. The one or more warning board bodies are each engraved with characters of front maintenance, and the surfaces and the back faces of the warning board bodies are each fixedly provided with a transparent plastic block of a triangular structure through glue. Gaps are formed between the warning board bodies correspondingly, and twosecond sliding blocks are slidably mounted in the second sliding groove. One end of each second sliding block extends outside and is fixedly provided with a supporting rod in a vertically welded mode,and a bottom plate is fixedly mounted on the bottom face of each supporting rod in a welded mode. The structure is simple, using is convenient, all the small warning board bodies are arranged independently, the windward sides are lowered, the warning board is prevented from being blown down by wind, and meanwhile disassembly and assembly are convenient, so that carrying is convenient.

The invention discloses a locking device for lifting an insulator, and relates to the technical field of electric power maintenance tools. The locking device for lifting the insulator comprises a bracket, a suspender and hand grabs; the bracket comprises a bracket body, a bracket rod, a bracket hole and a bracket inner cavity, the suspender includes a vertical rod, a first check block, a second check block, a lifting handle, a spring, a circular ring and connecting rods, and the hand grabs include hand grab bodies, rotating holes A and rotating holes B; the rotating holes A are formed in the upper ends of the hand grab bodies, and the rotating holes B are formed in the upper parts of the hand grab bodies; the hand grab bodies are rotated and slidably matched with the circular ring throughthe rotating holes A, and the hand grab bodies are rotated and slidably matched with the bracket rod through the rotating holes B; and the suspender is slidably matched upward or downward with respectto the bracket, and the hand grabs are correspondingly matched to contract or stretch; and through the bracket, the suspender and the hand grabs, the quick replacement of insulator strings is realized, the binding process of the insulator strings and lifting equipment is time-saving and labor-saving, the operation efficiency is high, and the operation and maintenance cost is low.

The invention discloses a steel frame snowmobile sneaker which comprises a sole, a vamp and a rear piece wrapping the heel portion of the vamp, a smooth and continuous ridge line is arranged on the outer surface of the rear piece, the outer surface of the rear piece intersects with any plane parallel to a first plane to form a first intersecting line, and a second intersecting line is arranged on the outer surface of the rear piece. The first plane is used for supporting the shoe sole, the intersection point of the first intersection line and the ridge line is the most rear point on the first intersection line, and the most rear point on the first intersection line is the first final point; the ridge line is bent backwards and is provided with a rearmost point, the rearmost point on the ridge line is a second rearmost point, and the second rearmost point is located in the middle of the ridge line. By the adoption of the technical scheme, in the moving process of the steel frame snowmobile sports shoes, air resistance can be reduced, and competition results are improved.

The invention discloses a road dust on-line monitoring device, and relates to the technical field of dust particulate matter concentration monitoring, the road dust on-line monitoring device comprises a monitoring device body, a right top plate, a left top plate, a right ring cover, a left ring cover and a climbing device, the right ring cover is arranged on the right side of the monitoring device body, and the left ring cover is arranged on the left side of the monitoring device body; a connecting rod is fixedly connected to the top of the right ring cover, a right top plate is mounted at the top end of the connecting rod, a left top plate is mounted at the top of the left ring cover through the connecting rod, a first fixing plate is mounted on one side of the right top plate, a threaded rod is fixedly connected to one side of the first fixing plate, and a second fixing plate is fixedly connected to one side of the left top plate. The monitoring device has the advantages of being reasonable in structure, high in wind resistance and convenient to install, the monitoring device surrounds the surface of the municipal rod body in a circular ring shape, the monitoring device can move up and down to freely adjust the height to collect data of flying dust in air at different heights, the accuracy of the monitoring data is improved, and practicability is high.

The invention relates to a frame-shaped truss wing beam dual-beam variable pitch single-film flow-converging wing surface flapping wing, and belongs to the technical field of air vehicles. A multi-degree-of-freedom space quadrangle is composed of a flapping wing main shaft 1, a bearing truss wing beam member 2, a floating wing beam seat 3, a floating truss wing beam member 5 and a wing end wing rib frame 6; the floating wing beam seat 3 performs leading flapping around the flapping wing main shaft 1 fixedly connected with a machine body, and the bearing truss wing beam member 2 performs lag follow-up; when flapping wing pitching switching is carried out, the floating truss wing beam member 5 swings front and back in a narrow range around a hinge pin 4 under the limit of the wing end wing rib frame 6; a wing root wing rib frame 7 and a plurality of (in the scheme the number is three) spaced wing rib frames 8 are connected between dual beams in a spanning mode and are limited at the positions of comb-tooth-shaped supporting rods of all wing beams and move following the beams to form pitch angles gradually varied in the wing unfolding direction; and a single-film wing surface 9 is arranged on a center zone of the wing beams and is combined with all the spaced wing rib frames to form four efficient lift-drag ratio wing surfaces which have geometric properties of flow guiding, converging and extruding airflow.