1586 results about "Lightning rod" patented technology

A wind turbine rotor including a rotor hub (3) and a plurality of blades (4), and where each blade root (16) is connected to said rotor hub through a pitch bearing (5) in such a manner that the pitch angle of the blade is adjustable by a turning of the blade about its longitudinal axis relative to the rotor hub. The blade is provided with at least one electrically conducting lightening down-conductor (6) extending in the longitudinal direction of the blade to the blade root and being electrically isolated from the pitch bearing (5). A spark gap (15) is provided between the lightning down-conductor and the rotor hub, said spark gap (15) being adapted to conduct a lightning current passing through the lightning down-conductor. A sliding contact connection (7, 12) is provided parallel to the spark gap (15) between the lightning down-conductor (6) and the rotor hub (3), said sliding contact connection ensuring electrical contact between said lightening down-conductor (6) and said rotor hub (3) irrespective of the pitch angle of the blade. The invention also relates to a wind turbine including such a rotor.

The invention discloses an annular and stereoscopic ecological cycle pig raising system, which comprises a hog house and a waste circulating system, wherein the hog house comprises a house body, a round patio and a house top, the hog house is of an all-steel columnar structure, the interior of the house body is divided into three layers of hog houses, each layer of hog house is divided into a plurality of colony hours by a through fence, and stairs are all arranged among the three layers of hog houses; the round patio is vertically and oppositely embedded in the middle part of the house body, and a lightning rod higher than the hop house is vertically arranged at the center of the patio; an arc-shaped all transparent glass steel tile annually covers the house top. The annular and stereoscopic ecological cycle pig raising system has the advantages of small land occupation and beautiful appearance design, the aesthetic requirements of people are met, the comprehensive construction cost is lower than the comprehensive cost of land levelling, three supplies and one levelling and cultivation body infrastructures of standardized farms, and assorted roads, pipelines, electric power construction, functional limiting cast iron high bed facilities, closed water-linked cooling facilities and gas pipeline warm floor heating facilities, and the annular and stereoscopic ecological cycle pig raising system has very high economic promotion value.

A wind turbine rotor blade includes: a rotor blade root; a rotor blade tip; an electrical heating device; a first lightning receptor disposed in the region of the rotor blade tip; precisely two lightning conductors leading from the lightning receptor to the rotor blade root; a second lightning receptor arranged at a distance to the rotor blade tip and connected to one of the lightning conductors; and, each one of the two lightning conductors being electrically conductively connected to the electrical heating device at a multiplicity of points between the rotor blade root and the rotor blade tip so as to cause equipotential bonding between the two lightning conductors via the electrical heating device in response to a lightning strike to the rotor blade.

The invention discloses a self energy supply lightning current detection system, which is used for being matched with a lightning rod device for use to realize the defection on relevant parameters of lightning current. The self energy supply lightning current detection system comprises a signal sampling maintaining device, an energy taking device, a single chip control unit, a hardware clock unit and a data storage unit, wherein the signal sampling maintaining device comprises a current sensing unit, a first voltage limiting protection unit and a positive/negative peak value maintaining unit which are connected in sequence, and the energy taking device comprises an energy taking coil, a front end protector, a rectifying and wave-filtering unit, a second voltage limiting protection unit, a voltage stabilizing unit and a DC/DC unit which are connected in sequence. The self energy supply lightning current detection system of the invention can continuously realize the monitoring on whether a transmission line or a building lightning rod suffers with the lightning strike or not, and can accurately record the time, the amplitude value in the occurrence of the lightning strike and the polarity, a special triggering circuit is not needed, and the invention has the characteristics of high precision, simple structure, small size, low cost, high safety and the like.

The invention provides a blade of a wind-driven generator. The blade comprises a housing, a web and a root flange, wherein the housing is divided into an upper housing and a lower housing which respectively comprise main beams, prefabricated components, root preformed parts and paving layers; each paving layer comprises a glass fabric, a balsa core and a foam core; the webs are positioned between the upper housing and the lower housing of the blade; and the root flange is adopted to connect the blade and a main body of the wind-driven generator. The invention also provides a manufacturing method of the blade of the wind-driven generator. The manufacture method comprises the following steps: preparing the root preformed parts, the main beams and the prefabricated components in individual dies; paving the root flanges, the root prefabricated parts, the main beams and the prefabricated components in a housing die together with the glass fabrics, the balsa cores, the foam cores and lightning rods; pouring resin into the housing die through a vacuum pouring technology so as to form the upper housing and the lower housing of the blade; integrally adhering the upper housing and the webs, and overturning the same for 180 degrees to adhere with the lower housing by closing the dies; and then removing the dies to obtain the blade of the wind-driven generator. The blade of the wind-driven generator manufactured by the method provided by the invention has the advantages of high stressing intensity and long service life.

The invention provides a megawatt-stage vertical shaft wind power generator with an adjustable attack angle. The vertical axis wind power generator comprises an electric power conversion device, a speed increasing box, a power generator, a variable pitch motor, a main vertical shaft, a cantilever cylinder, blade crossbeams, and blades with airfoils, wherein the cantilever cylinder is sleeved on the outer side of the main vertical shaft; the main vertical shaft is connected with the cantilever cylinder through a bearing; one end of each blade crossbeam is fixed on the cantilever cylinder, and blade autorotation devices are mounted at the other end of each blade crossbeam; a lightning rod is mounted at the top end of the main vertical shaft; an anemoscope is connected with an electronic control device; and the electronic control device controls the blade autorotation devices on each cantilever crossbeam, so as to enable the blades to adjust the windward angles according to a preset program and enable the power generator to be throughout in a state capable of producing the maximum torque. The starting wind speed is effectively reduced, and the wind energy utilization rate is increased.

The invention belongs to communication equipment manufacture technical field, especially relates to a triangle communication tower including tower boots, a tower body, an antenna bracket and a lightning rod, the tower boots are fixed on the ground, the tower body is composed of a tower column, a cross bar and a brace which are connected by the screw thread, the tower column is arranged with triangle shape, the cross bar of lever shape is connected by the screw thread between the tower columns, the brace is connected by the screw thread between the tower columns with acute angle to the lever surface; the tower body is fixed on tower boots, an operating platform is fixed on the top of the tower body, the lightning rod protrudes from the top of the tower body, the tower column is equal slope or one time changing slope, adopting 90 degrees angle iron, the two ends of the cross bar and the brace after being bent are fixed with the tower column. No folding point connection or one folding point connection is existed between the tower bodies of the triangle communication tower, the invention has stable structure and strong windproof capability, adopting 90 degrees angle iron, not only with low cost, simple taking materials, convenience, materials saving, but also with simplifying structure.

Disclosed is an electric power wire stringing apparatus. The electric power wire stringing apparatus comprises a stand column, wherein dovetail-shaped sliding grooves are longitudinally formed in the two sides of the upper end of the stand column; dovetail-shaped sliding strips are embedded in the sliding grooves; supporting arms are arranged on the edges of the sliding strips; two nicks are formed in the top ends of the supporting arms in the length direction; threading holes are formed in the side walls, corresponding to the positions of the nicks, of the supporting arms; the nicks are communicated with the threading holes; blind holes are formed in the inner walls of the nicks; clamping blocks are connected in the blind holes through springs; clamping grooves matched with the clamping blocks are formed in the inner walls on the other sides of the nicks; and the top end of the stand column is connected with a lightning rod through a fixed frame. According to the electric power wire stringing apparatus, the supporting arms can be adjusted to the required height by sliding the sliding strips in the sliding grooves; the cables can be mounted conveniently and the height requirements of the cables can be satisfied as well; the cables are arranged in the threading holes through the nicks, so that the trouble of slowly pouring out the cable ends inserted in the threading holes is avoided; the cables on the stand column can be prevented from suffering from lightning stroke due to the lightning rod, and accidents can be prevented; and in addition, the electric power wire stringing apparatus is simple in structure and convenient to use.

The invention relates to the technical field of power communication, in particular to a small adjustable 5G signal receiving tower. The small adjustable 5G signal receiving tower comprises a tower body, a lightning rod, an adjusting assembly, fixed seat assemblies, ground plug-in assemblies and antenna assemblies. The lightning rod is arranged at the upper end of the tower body, the adjusting assembly is fixedly connected to the middle end of the tower body, the adjusting assembly is in engaged transmission connection with the tower body, the fixed seat assemblies are arranged at the lower endof the tower body, the four ground plug-in assemblies evenly surround the lower ends of the fixed seat assemblies, and the antenna assemblies are arranged at the upper end of the tower body and located below the lightning rod. The small adjustable 5G signal receiving tower can be stored in the carrying and moving processes, the occupied space is small, the lightning protection function is achieved, high stability and safety are achieved, and meanwhile the small adjustable 5G signal receiving tower is convenient to adjust.

The invention discloses a novel base station communication signal launching tower, comprising a tower body, an antenna support and a lightning rod; the tower body comprises three tower columns, a plurality of cross bars, a plurality of slanting bars; the three tower columns are connected and combined by the cross bard to form an equilateral triangle, the side ends of the three tower columns in the same direction close towards the center point of the equilateral triangle; an inner flange structure comprises a first flange plate and a second flange plate, and each two adjacent sections of tower rods are connected by through holes with concave-convex groove structures formed in the first flange plate and the second flange plate; in addition, a variable slope structure is also arranged at the bottom of the tower body. The invention also discloses another novel base station communication signal launching tower, comprising a tower body, an antenna support and a lightning rod; the tower body comprises four tower columns, a plurality of cross bars, a plurality of slanting bars and crawling ladder. According to the novel base station communication signal launching tower, the technical problems that production and installation are inconvenient, the tower base and the tower foundation cannot be cooperatively connected and cannot integrate a plurality of operators into a whole are overcome.

A haze treating and lighting integrated device is characterized by mainly comprising a haze monitoring device (1), a city water supply pipeline (2), a branch water pipe (3), a maintenance control window (4), a pressurization pump (5), a valve (6), a spherical spray head (7), a lightning rod (8), a street lamp (9) and a street rod (10). The haze monitoring device is used for monitoring the PM2.5 concentration value, the pressurization pump (5) is started when the concentration value is larger than a set value, pumped high-pressure water enters the spherical spray head (7) through the valve (6), spherical water mist is sprayed, and then haze treatment is realized. The device has both the haze prevention and control function and the road lighting function, and automation of haze prevention and control and automation of sprinkling irrigation of greening trees on the two sides of the road are facilitated.

A lightning rod system including both methods and specific types of lightning rod protection apparatus, which address the need for lightning rod safety features to deter impalement and minimize injury when humans inadvertently fall upon or strike the projecting air terminal through use of a hebetative contagious impact surface (10) on an end cap(s). The system involves lightning rod system components such as humanized quantal rod (3) or coil spring coupler (13) engineered to be responsive within the range of forces achieved when a human of average size and weight falls onto the projecting air terminal from a standing surface level with that on which the lightning rod system is mounted to. The lightning rod system also involves a method and engineered components to retrofit existing lightning rod assemblies. Additionally, the system components address the need for a safety warning air terminal system to prevent impalement and injury from projecting air terminals that are not designed to be conducive to a lightning strike.

The invention discloses a transformer substation lightning protection device convenient to detach, assemble and maintain. The transformer substation lightning protection device comprises a base, a supporting box body, an angle adjusting box body, a lightning protection ball and a lightning rod. A lifting plate is arranged in the supporting box body in a vertical sliding mode. The stands are symmetrically fixedly arranged on the upper surface of the middle of the lifting plate. The tops of the two stands are each provided with an inclined face. The ends of a telescopic rod on an electric push rod are each provided with a supporting column. The bottom end of each supporting column is provided with a guide slide wheel. The guide slide wheels are arranged on the inclined faces in a sliding mode. The bottom of the lifting plate is connected with an inner cavity bottom plate of the supporting box body through a plurality of springs. A hinge base is fixedly arranged on the right side wall ofan inner cavity of the angle adjusting box body. A supporting plate is rotationally arranged on the hinge base in a hinged mode. A guide column is fixedly installed on the outer end face of a rotatingplate. The supporting plate is arranged on the circumference of the guide column in a sliding and sleeving mode. The transformer substation lightning protection device is simple and reasonable in structure, convenient to move, convenient to detach, assemble and maintain, beneficial for angle adjustment, flexible to use and suitable for use and popularization.

The invention relates to an electric iron tower mounted with an 4G antenna. The electric iron tower comprises an iron tower main body, wherein a first mounting bracket, a second mounting bracket, a lightning rod, a protecting sleeve and a grounding device are arranged on the iron tower main body; a base is arranged at the bottom end of the iron tower main body; the base comprises a soil layer, a thin sand layer, a concrete floor and a macadam layer; the protecting sleeve is inserted into the thin sand layer. The electric iron tower has the advantages that a radio frequency pulling unit RUU and the antenna are respectively fixed on a cross arm at the top of the top end of the iron tower through the first mounting bracket and the second mounting bracket, the lightning rod and the grounding device which are arranged on the iron tower are used for performing lightning protection treatment on the radio frequency pulling unit RUU and the antenna, and the radio frequency pulling unit RUU and the antenna are arranged in a protecting area of the lightning rod, so that the antenna and the radio frequency pulling unit RUU are protected from being damaged, the safety performance is high, the structure is simple, the mounting is convenient, and the base is provided with the soil layer, the thin sand layer, the concrete floor and the macadam layer so that the strength of the base is increased.

The invention relates to a patrol robot, comprising: a car body, a driving motor, a steering driver, a driving wheel, a camera mechanism and a control module; At the top, the camera is connected to the lifting assembly. The lifting assembly includes a lifting motor and a lifting rod. The lifting motor is set in the storage cavity. There is a lifting hole on the top of the car body. The lifting hole communicates with the storage cavity, and the lifting rod is movable through the lifting hole. Inside, the lifting motor is driven and connected with the lifting rod, and the lifting rod is connected with the camera. The lifting rod moves in the vertical direction under the drive of the lifting motor, so that the camera can shoot the platens of different heights, and the lifting rod is restricted by the lifting hole to avoid the horizontal deviation of the lifting rod, so that the movement of the lifting rod is more accurate. In order to be stable, improve the clarity of the image captured by the camera, and effectively reduce the misjudgment rate and missed judgment rate of false throwing and returning.

The invention discloses an adjustable lightning rod. The adjustable lightning rod comprises an installation disc, wherein no less than two installation holes are formed in the upper surface of the installation disc, a groove is formed in the middle part of the upper surface of the installation disc and fixedly connected with a bearing disc via a shock absorption device arranged in the groove, a motor is arranged on the upper surface of the bearing disc and engaged with a transmission device via a tooth disc sleeving a rotation shaft, the transmission device is fixedly arranged on the installation disc via a support, the top of the transmission device is further provided with a telescopic post, and the top of the telescopic post is movably connected with an angle modulation plate via the rotation shaft arranged at the bottom of the angle modulation plate. By arranging the transmission device and the telescopic post, the lightning rod and a lightning ball are more convenient and rapid to adjust and install, and the influence of an external environment on lightning rod installation is reduced; and moreover, with the arrangement of the shock absorption device, the adjustment of the lightning rod and the lightning ball is more firm, and the influence of shock on lightning rod adjustment is reduced.

The invention provides a building lightning protection range determining method, comprising: determining ball radius of a lightning rod according to building lightning arrest level so as to determine a protection range for each lightning rod acting as an independent lightning rod; determining a surface independent protection range circle of each lightning rod and a building height level independent protection range circle of each lightning rod according to the protection range of each lightning rod acting as the independent lightning rod; determining a joint protection range envelope curves of all lightning rods around a building in the building height level; monitoring whether the current building lightning protection range is feasible or not according to whether the building height is within the joint protection range of any two lighting rods or not. Three-dimensional ball concept is simplified as two-dimensional planar drawing method, and drawing results are vivid, simple and clear.

The invention discloses an electric power grounding column for electric power engineering. The electric power grounding column for electric power engineering comprises a body, wherein a lower end of the body is provided with an insertion end, an outer ring of the insertion end is provided with more than four locking sheets, the outer ring of the insertion end is provided with through grooves opposite to the locking sheets, sides of the locking sheets close to the through grooves are provided with guide sheets, the body is internally provided with a supporting board, the board surface of the supporting board is provided with a threaded hole, a threaded rod is matched with the threaded hole, a lower end of the threaded rod is matched with a conic guide block, the top portion of the body is provided with an end portion, a side face of the body is provided with a first end portion, a lead is matched between the end portion and the first end portion, and one end of the lead extends outside the end portion and is matched with a lightning rod. During use, relatively excellent detachable connection between the electric power grounding column and the ground can be realized, and a theft phenomenon can be avoided.

The invention discloses an automatic flexible rainwater collection device. The automatic flexible rainwater collection device comprises a water storage pond, a fixed rod, a canopy bottom fixing device, a funnel-shaped rainwater collection canopy, a center control box, a conductive wire, a solar cell panel, a canopy top fixing device, steel wire pull ropes, a lightning rod, a rain sensor and supporting rods. The automatic flexible rainwater collection device can effectively increase the rainwater collection quantity, is small in occupied space, achieves the fact that the water storage pond can store water without depending on surface runoffs, and solves the problems that vast karst mountainous areas are affected by landforms, surface runoffs cannot be formed, water cannot be effectively stored in small pools and small cisterns, built pools are frequently dried up all year round and cannot play a role in fighting against a drought and protecting production and construction, the phenomenon that pools are used for containing the sun in the daytime and containing the moon at night occurs, manpower and material resources are wasted, precious cultivated land resources are occupied, and the water shortage problem seriously hinders economic development and social progress of karst regions.