388results about How to "Reduce wind" patented technology

A wind turbine has a horizontal axis of rotation and features a hub beam and two turbine blades attached to opposing ends of the hub beam in a spaced-apart relation. The blades have a first position in which the blades are radially arrayed about the hub beam. The blades have a second position in which the blades are folded and moored to the tower. A control system communicates with weather sensors and determines whether to move the blades between the first and second positions.

The invention discloses an automatically-adjusted windproof solar panel. The bottom portion of an adjustment box is fixedly connected with a plurality of support rods, the bottom end face of the solarpanel is hinged with a base, the base is fixedly connected at the top wall of the adjustment box, and the bottom surface of the solar panel is provided with two symmetrically arranged rack rods. through combination of the rack rods, a rotating table and a ratchet wheel, the angle of the solar panel can be automatically adjusted to adapt the change of the irradiation angle of sunlight to achieve the maximum photoelectric conversion rate, the pawl on the rotating table is meshed with the ratchet wheel on the turntable in a clearance way for rotation to make the speed of the rack rod moving up and down and the speed of the azimuthal shift of the sun the same, when the automatically-adjusted windproof solar panel is blown by wind, an electromagnet can attract an iron plate to be located at same horizontal plane so that the two rack rods are arranged in the horizontal direction to ensure the horizontal arrangement of the solar panel, reduce the wind force of the solar panel and ensure thesteadiness of the solar panel.

The invention discloses a mechanical sealing property testing device. An electric main shaft is connected with a single cantilever working main shaft; floating support of the single cantilever working main shaft is achieved by virtue of the geometric pressure compressing function of a moving ring end surface and a static ring end surface; the edge end of a force measurement sleeve is of a flange structure; an axial force strain piece is arranged on the force measurement sleeve; a shaft sleeve sleeves the single cantilever working main shaft and penetrates through end covers at the left end and right end of a sealing cavity; the shaft sleeve is slidably connected with the single cantilever working main shaft in a sliding manner in the axial direction and in a positioning manner by using an embedding block in the circumferential direction; two sections of threads of which the screw pitches are equal and the spiral lines are in opposite directions are formed in the shaft sleeve; the threads are respectively screwed with a left screw nut and a right screw nut; the back sides of two push rings respectively contact two moving ring bases; the moving ring bases are connected with the shaft sleeve in an sliding manner in the axial direction and in a positioning manner in the circumferential direction; a through hole which is communicated with a sealed end surface is formed inside a static ring; an infrared probe is arranged inside the through hole. Due to the structural design, measurement on property parameters such as large diameter and high rotation speed of mechanical sealing, particularly the measurement on the axial force and the temperature between sealed end surfaces can be achieved.

A flexible hurricane shutter or barrier to protect buildings from over pressure has inflatable cushions held in place by a fabric material capable of withstanding winds in excess of 100 mph. The barrier can be stored on site in a rolled fashion. Retainers are mounted on a building to guide and secure the longitudinal edges of the fabric to permit ease of deployment. The retainers may be spaced apart over one side of a building and the barrier may be deployed over an entire surface of a multi-story building by raising and lowering the fabric. Inflatable cushions are held between the fabric and the building. The inflated cushions reinforce the material and distribute the force of impact throughout the surface of the cushions and act as spacers to both hold the fabric off the structure and focus the forces onto stranger portions of the structure.

The present invention is to provide a vertical axis wind engine comprising at least one arm each having its center rotatably coupled to a vertical axis mounted on a base on the ground, each pair of the upper and lower arms adapted to define an airfoil receiving space for pivotably mounting an airfoil by pivot pins thereof; and at least one elastic stop member each provided on the arm proximate the airfoil and spaced from the pivot pins, each stop member adapted to limit a pivot angle of the airfoil and lift the pivot limitation for allowing the airfoil to pivot when the airfoil experiences a wind force larger than a maximum resistance force thereof, preventing the components of the wind engine from being damaged by strong wind or when the wind engine is operating in high speed.

The present invention discloses a plug, which matches a corresponding socket. The plug comprises a body, a shell, a plurality of terminals and a plurality of wires. The body has a first contact surface directing to the corresponding socket, a second contact surface corresponding to the first contact surface and a plurality of terminal channels formed between the first contact surface and the second contact surface. Each terminal has a connection end that extends from the second contact surface out of the terminal channel and is accepted by the shell. On one side of the shell, the wires connect to the shell and the connection direction is vertical to the first contact surface. A gold finger board, placed in the shell, has a plurality of leads, each lead having a soldering pad connecting to the corresponding terminal at one end and having a gold finger connecting to the corresponding wire at another end. The plug of present invention provides the advantages of avoiding twisting of the wire and saving space.

The invention discloses a purifier with an automatic dust prevention function. The purifier comprises a shell. Air inlets are formed in the two sides of the bottom of the shell, and an air outlet is formed in the upper end of the shell. A fan is further arranged at the bottom end in the shell. A first filter screen and a second filter screen are further arranged in the shell in sequence from bottom to top. According to the purifier, the first filter screen and the second filter screen are connected and arranged movably through springs instead of being arranged fixedly and can swing front and back under the action of air force, then some original adsorbed air waste can be shaken off, the service life of the two filter screens can be prolonged, and the purpose of filter screen self-cleaning can be achieved.

The invention discloses a deep sea floating type fishery and animal husbandry-wind power combined platform system which characterized in that the platform system comprises a breeding platform, whereinthe breeding platform comprises an upper layer; the upper layer comprises a plurality of upper buoys uniformly distributed in the circumferential direction; every two adjacent upper buoys are connected by a connecting beam; a connecting portion is arranged at the center of the upper layer; all the upper buoys and the connecting portion are connected by box beams; the breeding platform further comprises a lower layer; the lower layer comprises a plurality of lower buoys uniformly distributed in the circumferential direction; a central lower buoy is arranged at the center of the lower layer; the connecting beams are arranged between all the adjacent lower buoys and among all the lower buoys and the central lower buoy; the upper buoys in the upper layer has the same number and relative positions as the lower buoys in the lower layer; a stand column is connected between the corresponding upper buoy and the lower buoy; and wind power generators and a lifting device are arranged on the upper buoys.

The invention relates to a wind shielding gravel mechanism not vertical to the ground. The wind shielding gravel mechanism comprises a base, a wind shielding gravel structure installed on the base; in the movement direction of wind, the wind shielding gravel structure is in an arrangement with an inclined angle of 30-80 degrees with the installment plane of the base; in addition, the wind shielding gravel structure is provided with a plurality of through holes with aperture ratio of 20-80%, at least a part of windward side of the wind shielding gravel structure is a curve structure. The wind shielding gravel structure not vertical to ground can change wind direction on the ground on the basis of an aerodynamic principle and enables wind to be output in direction parallel to the installment direction of the wind shielding gravel mechanism, and thus corrosion phenomenon can be avoided effectively; in addition, due to the change of wind direction and shielding of the wind shielding gravel mechanism, wind power in the wind shielding gravel mechanism is reduced obviously, and thus the wind shielding gravel mechanism can be used for reducing the sand carrying capacity of wind can be effectively weakened, and the damage of sand flow to railways, highways and other traffic facilities can be further prevented.

The invention provides a wall-mounted air conditioner indoor unit. The wall-mounted air conditioner indoor unit comprises a machine shell, wherein first air supply ports and an air duct communicatingwith the first air supply ports are defined in the machine shell, and the inner wall, close to the first air supply ports, of the air duct is in a gradually-reduced shape enabling the overflowing section of the air duct to be gradually reduced in the airflow direction; and flow guide parts, wherein the flow guide parts are arranged in the air duct, and air outlet gaps are defined between the flowguide parts and the inner wall of the air duct to guide airflow blown to the first air supply ports to the inner wall of the air duct, so that the airflow gradually flows out of the first air supply ports towards an airflow center under the guidance of the gradually-reduced portion on the inner wall of the air duct. Cavities are formed in the flow guide parts, and air inlets and air outlets whichcommunicate with the cavities are formed in the flow guide parts, so that the airflow in the machine shell enters the cavities through the air inlets and then is blown out through the air outlets. Thewall-mounted air conditioner indoor unit has better long-distance air supply and strong air supply effects.

The embodiment of the invention discloses a radio frequency circuit and electronic equipment, and aims to solve the problems of large difference loss and poor isolation of a radio frequency circuit element designed at present. The invention comprises a transceiver, and a first transmitting path, a first receiving path, a second receiving path, a second transmitting path, a third receiving path anda fourth receiving path. The first transmitting path, the first receiving path, the second receiving path, the second transmitting path, the third receiving path and the fourth receiving path are respectively connected with the transceiver. A three-pole three-throw switch is connected with a first antenna group in the first transmitting path, a first receiving path and a second receiving path. Adouble-pole double-throw switch is used in the second transmitting path and the third receiving path to be connected with the second antenna group, and due to the fact that the element difference lossof the double-pole double-throw switch is small, the element difference loss caused when a plurality of three-pole three-throw switches are used can be effectively reduced when one double-pole double-throw switch is used in the radio frequency circuit. Meanwhile, switching paths of the double-pole double-throw switch are few, and the isolation degree is better, so that the signal interference can be reduced.

The invention provides a sheet material crawling prevention device which can prevent crawling of a sheet material in moving, especially on a winding side. The sheet material crawling prevention device (1) can prevent crawling especially generated in a process of winding a sheet material (4) moving to a winding roller (2) from a discharging roller (3) by the winding roller (2). The winding roller (2) can slide in a direction of a shaft (2a), thus if the sheet material (4) crawls, the winding roller (2) also shifts in the direction offset by crawling, generating no winding crawling on the winded sheet material (4).

The invention relates to a method for dynamic sealing between the bottom of a trolley of a sintering machine and an isolation beam of a blower and a sealing device thereof and belongs to the field of sintering equipment in the ferrous metallurgy industry. The invention is developed aiming at the problem of the sealing between a connecting part of two blowers on the lower part of an ignition furnace of the prior belt-type sintering machine and the bottom of a crossbeam of a trolley body of the sintering machine is poor so as to cause easy air crossing. A sealing device with a sealing cover plate is arranged between the connecting isolation beam of two blowers of the sintering machine and the bottom of the crossbeam of the trolley body; the lower part of the sealing device is connected with the isolation beam of the blowers; and the upper surface of the cover plate of the sealing device is tightly contacted with the plane of the crossbeam on the bottom of the trolley through gravity or spring force, thereby achieving the dynamic sealing between the connecting part of the two blowers and the bottom of the crossbeam of the trolley body of the sintering machine. The sealing device has the characteristics that the sealing device has good dynamic sealing performance and no air crossing and prevents the trolley body from downwarping, can be used for the sealing between the trolleys of the machine head and the machine tail of the belt-type sintering machine and the blower and can be also used for the sealing between a middle trolley body of the sintering machine and the blower.

An irrigation device used for row crop comprises a water injection device and a water conveying device which is connected with the water injection device through water pipe. The water injection device comprises a spray pipe and a nozzle fixed at the end of spray pipe. The spray pipe is fixed on a bracket and is installed in parallel with the ground. The nozzle which is fixed at the end of spray pipe is installed with a radial closed impeller. The irrigation device which is used for row crop according to the invention installs the spray pipe in parallel with the ground. Furthermore the nozzle is installed with the radial closed impeller. The water injected from the nozzle is sprayed between the crop rows with a strip shape after scattered by the impeller for directly moisturizing the crop root. The arrangement mode of device in the field adopts a mode of interlaying collocation of spraying units for realizing non-equal irrigation. The water is sprayed on half land under the precondition that all crops are irrigated. The irrigation water is greatly saved and the production cost of foodstuff is reduced.

The invention discloses a magnetically-assisted starter for vertical-axis wind turbines. The magnetically-assisted starter comprises a rotor and a stator; the rotor is arranged above the stator; the rotor is fixedly connected with a wind wheel; the stator is fixed; an air gap is reserved between the opposing outer faces of the stator and rotor; more than two magnetic suspension permanent magnets are evenly arranged on the periphery of the outer surface of the stator in the air gap; one N-pole or S-pole end of each magnetic suspension permanent magnet faces to the opposing outer face of the rotor at the same time; paired magnetic drive permanent magnets mutually acting with the magnetic suspension permanent magnets are evenly arranged on the periphery of the opposing outer face of the rotor in the air gap; one in each pair of magnetic drive permanent magnets is provided with an N-pole facing to the opposing outer face of the stator, and the other one is provided with an S-pole facing to the opposing outer face of the stator; magnetic poles, facing to the stator, of the magnetic drive permanent magnets are alternately arranged by facing to the stator. The magnetically-assisted starter has the advantages of simple structure, low cost, convenience of installation and the like.

The invention discloses a contact state and humidity adjustable cable water-blocking buffer layer structure simulation test system and method. The system comprises a bottomless test box body with a ventilation opening in the top surface, and the interior of the bottomless test box body is provided with partitions and is divided into a monitoring area, a test area and a control area; a camera is placed in the monitoring area, an ablation platform is placed in the middle of the test area, humidifiers are placed at four corners in the test area respectively, electric fans are placed among the humidifiers, and a power bank is placed close to the partition; a PLC is placed in the control area, and a data line of the PLC penetrates through the side wall of the box body and is connected to an external computer; and data lines of the humidifiers and the electric fans penetrate through the partitions and are connected to the PLC. According to the system and the method, the structural characteristics of a corrugated aluminum sheath and a water-blocking buffer layer in the high-voltage cable are effectively restored, and the real working state of the water-blocking buffer layer under the actual cable operation condition is better simulated by adjusting the external voltage and current, the electrode position, the pressure and the environment humidity, so that the fundamental reason and the damage mechanism of ablation of the water-blocking buffer layer are favorably explored and analyzed.

This invention relates to a wind mill which is designed to convert rotational energy to mechanical energy to drive one or more pistons to raise a liquid such as water to an elevated location if necessary at a positive pressure. In addition, the present invention may be adapted to pressurize a medium, such as a gas, for storage in a reservoir.

The invention discloses a wind-resisting device for building construction. The key points of the technical scheme are as follows: the wind-resisting device comprises a base, a bracket and a board, wherein the bracket comprises a connecting pipe and a frame body, the connecting pipe is fixedly connected with the base, the frame body is used for mounting the board, a rotating shaft is transversely arranged in the frame body, the board comprises a rotating hole allowing the rotating shaft to pass through, after the rotating shaft passes through the rotating hole, the board is hinged to the frame body, after strong wind blows, the board can rotate around the rotating shaft, a gap is formed between the board and the frame body, and wind can blow from the gap. The device is strong in wind resistance, the phenomenon that the device is blown down by the strong wind so that the safety warning effect is lost seldom occurs, the base is in a spherical shape, a weight is arranged in the base, so that after the device is blown down by the wind, the device can erect again without external force and further plays the safety warning role, thus the problem that after the device is blown down by the wind and is not lifted up by people, the device loses the safety warning function, therefore, the safety alert of people cannot be caused by some dangerous areas, consequently, safety accidents occur easily, is solved.

The embodiment of the invention discloses a radio frequency circuit and electronic equipment, and aims to solve the problems of large difference loss and poor isolation of a radio frequency circuit element designed at present. The radio frequency circuit comprises a transceiver, and a first receiving path, a first transmitting path, a second transmitting path, a second receiving path, a third receiving path and a fourth receiving path which are respectively connected with the transceiver. A double-pole double-throw switch is connected with a first antenna group in a first transmitting path, afirst receiving path and a third receiving path, a double-pole double-throw switch is connected with the second antenna group in the second transmitting path, the second receiving path and the fourthreceiving path, and the element difference loss of the double-pole double-throw switch is small, so that the element difference loss caused by using other switches can be effectively reduced by usingthe double-pole double-throw switch in the radio frequency circuit, and the signal receiving and transmitting performance is improved; meanwhile, the switching paths of the double-pole double-throw switch are few, and the isolation degree is better, so that the signal interference can be effectively reduced.