67results about How to "Play the role of lightning protection" patented technology

The invention discloses a radar antenna housing. In the radar antenna housing, a spherical segment housing body which has a honeycomb sandwich structure is adopted; the radar antenna housing is formed by splicing modules which are made of glass fiber reinforced plastic and paper honeycombs; thus the wave penetrating performance and the mechanical strength of the glass fiber reinforced plastic and the paper honeycombs are fully utilized, and the effects of sheltering rain, snow, hail, strong light and the like are achieved without the influence on the normal use of a radar antenna. In addition, a lightning rod is arranged beside the housing body, so the possibility of lightning stroke can be greatly reduced when the radar antenna housing is used on a tall building so as to fulfill the aim of safe use.

The invention belongs to the technical field of lightning protection, and provides a lightning protection circuit. The lightning protection circuit comprises a thunder and lightning absorption and isolation circuit connected in series to a power supply line of a device to be protected; the thunder and lightning absorption and isolation circuit comprises a thunder and lightning absorption circuit for absorbing lightning current and a thunder and lightning isolation circuit for performing frequency-selecting and filtering to the current passing therethrough, so that a power frequency signal or a carrier signal passes through to prevent transmission of lightning current, thus playing a role in lightning protection. Compared with the prior art, the lightning protection circuit distributes a shunt proportion of the lightning current without relying on a resistance value of a grounding grid and characteristic impedance of the device to be protected, thus being good in lightning protection effect. In addition, a first surge protection circuit and a second surge protection circuit can be added to further strengthen the lightning protection effect and the requirement of the resistance value of the grounding grid can be greatly reduced, namely the grounding grid with high resistance value can be used, and thereby construction cost of the grounding grid is greatly reduced, and construction period is shortened.

The invention discloses a lightning-protection and damp-proof distribution box device which comprises a box body, wherein a fan is arranged in the middle of the right side of the box body, a heating wire is arranged at the left end of the fan, and the heating wire is fixedly connected with the right side wall in the box body; a main machine is arranged in the middle of the bottom end in the box body, a humidity sensor is arranged above the main machine, and the humidity sensor is fixedly connected with the top wall in the box body; the middle part of the top end of the box body is provided with a connecting rod, the top end of the connecting rod is provided with a rain-proof cover, a supporting block is arranged in the middle of the top end of the rain-proof cover, a groove is arranged inthe middle of the top end of the supporting block, a second spring is arranged in the middle of the bottom end in the groove, the top end of the second spring is fixedly connected with a trapezoidal convex block, and a triangular movable block matched with the trapezoidal convex block is arranged on two sides of the trapezoidal convex block. The lightning-protection and damp-proof distribution boxdevice is simple in structure, low in cost and convenient to use, can achieve the effect of lightning-protection, damp-proof and dust-proof, and a lightning rod is provided with a damping structure,cannot be broken due to storm, and is good in lightning protection effect.

The invention relates to a lightning protection automatic switch for a satellite television receiver, which comprises a shell, wherein both ends of the shell are respectively provided with an external terminal which is connected with an external cable; the other end of the external terminal at one side is provided with an on-off interface, and the other end of the external terminal at the other side is connected with an internal cable; a guide rail assembly is arranged in the shell; a drive mechanism is installed on the guide rail assembly and is connected with the external terminal at the other side by the internal cable; a control circuit board and a motor controlled by the control circuit board are arranged on the drive mechanism; and one end of the drive mechanism is provided with a contact terminal which is matched with the on-off interface. The invention ensures that a receiver and connected equipment thereof can not be damaged by lightning overvoltage and lightning current when a satellite antenna is subjected to lightning stroke, and solves the technical problem of poor lightning protection effect and easiness for causing personal injury by plugging and drawing a plug every time in the prior art.

The invention discloses a power supply cable assembly comprising a connector, a cable and a grounding jumper wire, wherein the cable comprises a core wire and a shielding layer; the connector comprises a contact component, one end of the contact component is connected with the core wire, one end of the grounding jumper wire is connected with one end of the contact component, which is connected with the core wire, and the other end of the grounding jumper wire is connected with the shielding layer; and the contact component connected with the grounding jumper wire is a grounding contact component, or one end of the grounding jumper wire is connected with the shielding layer, and the other end is directly connected with the core wire used for grounding. In the power supply cable assembly, the shielding layer of the cable is connected with the contact component or the core wire, which is used for grounding, by the grounding jumper wire, and the shielding layer of the cable can be reliably grounded, so the reliability of the power supply cable is improved.

The embodiment of the present invention discloses a lightning protection radio frequency remote unit RRU, which includes primary and secondary circuits and a working circuit. The primary and secondary circuits convert the power output from the power supply system to obtain working power to supply power to the working circuit; The shielding layer of the shielded cable at the end of the RRU side and the shielding layer of the shielded cable at the power supply system side are grounded respectively; the surge overvoltage withstand value between the primary circuit and the ground is not less than the lightning strike overvoltage; each core of the shielded cable The surge overvoltage withstand value between the wire and the shielding layer of the shielded cable is not less than the lightning overvoltage. The product is obtained, and the lightning current of the shielding layer is determined according to the lightning current meeting the specific lightning protection level. Through the embodiment of the present invention, there is no need to install a lightning protection module on the RRU side and the power supply system side, thereby reducing the cost and reducing the volume of the equipment.

The invention discloses a transposition tower and a transposition method thereof, and belongs to the field of transmission lines. The transposition tower comprises a tower body, a left cross arm, a right cross arm, a left crank arm, a right crank arm, a jumper part and a ground wire support. The left crank arm and the right crank arm are symmetrically arranged, and the lower ends of the left crankarm and the right crank arm are both connected with the upper end of the tower body. The left cross arm and the right cross arm are symmetrically arranged and connected with the outer sides of the left crank arm and the right crank arm correspondingly, and a front hanging point and a rear hanging point are arranged at each of the free end of the left cross arm and the free end of the right crossarm and used for hanging a front insulator chain and a rear insulator train correspondingly. The jumper part is arranged between the left crank arm and the right crank arm and used for hanging a firstjumper. The two ends of the ground wire support are connected with the upper ends of the left crank arm and the right crank arm correspondingly. A front hanging point and a rear hanging point used for hanging a front insulator chain and a rear insulator chain are arranged on the front and rear sides of the top of the tower body correspondingly. The transposition tower is simple in structure, lowin weight, low in manufacturing cost, capable of conveniently and safely carrying out transposition on three-phase conductors and suitable for transposition of a single-loop transmission line.

The invention provides a quick dismounting grounding device which comprises a scaffold body. A vertical steel reinforcement pipe is fixed on the scaffold body. A connection bolt is welded on the vertical steel reinforcement pipe. The screw of the connection bolt faces outwards. A terminal wire is wound around the screw, and is pressed and fixed on the bolt through a compression nut. The other endof the terminal wire is connected with a connection hole of a grounding plate. The connection hole is arranged in the top of the grounding plate. A square pipe is fixedly welded on the grounding plate. The square pipe is inserted in grounding flat steel. The grounding device can connect the adhesion lifting scaffold and the vertical steel reinforcement of a building, and has a good lightning protection effect. The grounding device has the advantages of easy dismounting, simple operation, low processing cost, safety and reliability.

The invention provides a DC blocking type low residual voltage gas tube lightning arrester comprising a threaded sleeve, a male casing, a female casing, an upper casing, a lower casing, female insulators, contact pins, a patch capacitor, a gas tube and sheet copper, wherein the male casing and the female casing are positioned at the front end and the rear end of the lightning arrester respectively; the upper casing and the lower casing are fixed between the male casing and the female casing and are fastened together; the threaded sleeve is screwed on the outer ring surface of the male casing; the contact pins include a front contact pin and a rear contact pin which are positioned in the central holes of the male casing and the female casing respectively and isolated from the male casing and the female casing respectively through the two female insulators; the patch capacitor is fixed on the outer side surface at the rear end of the front contact pin and is in contact with the end surfaces of the female insulators; the gas tube is positioned in a central hole formed between the upper casing and the lower casing and is fixed on the upper casing; and the front contact pin, the patch capacitor and the gas tube are connected through conductors. The lightning arrester provided by the invention has the advantages of simple structure, convenience in installation, effectively lowered residual voltage, good lightning-protection effect and high safety performance.

The invention discloses a novel sink type oil storage device. The conventional petroleum storage tanks are generally constructed in intertidal zones and are extremely easy to settle along the longitudinal arrangement direction of tank bodies, and the tank bodies can be distorted by differential settlement. The device comprises a storage tank, strengthening walls and strengthening buffer systems, wherein the strengthening walls are uniformly distributed at the periphery of the barrel-shaped storage tank; traction devices are arranged on the tops of the strengthening walls; and the strengthening buffer systems are arranged on the side walls of the strengthening walls and are arranged between the strengthening walls and the storage tank. The device has a simple structure and is convenient touse; an extremely deep foundation is not required to be specially constructed for the storage tank; and the normal use of the whole storage tank cannot be influenced even the foundation is subjected to the differential settlement.

The invention relates to a support, in particular to a circuit support for municipal engineering. The invention provides the circuit support, which is used for combining a wiring fixing device and a wire rod and which is relatively complicated in structure and good in flexibility and has versatile functions, for the municipal engineering. In order to solve the technical problem, the circuit support for municipal engineering comprises a bottom plate, wherein the wire rod is arranged at the top of the bottom plate, through holes are formed in a front part, a rear part, a left part and a right part of the bottom plate, the wire rod is arranged at the top of the bottom plate, a rooting device is arranged at a lower part of the wire rod and is matched with the through holes, a second groove isformed in an upper part of the wire rod, and first grooves are horizontally and symmetrically formed in an upper part of the wire rod. The effects that the winding fixing device and the wire rod are combined and the circuit support is relatively complicated in structure and good in flexibility and has versatile functions are achieved; and the swinging winding device and the rooting device of the equipment both are arranged on the wire rod, the circuit support is good in application flexibility, and winding is convenient.

The invention discloses a lightning protection LED traffic light device in the technical field of traffic lights. The device comprises a base. A stand column is arranged in the middle of the top sidewall of the base. An insulating fixing device is arranged at the top of an inner cavity of the stand column. A lightning rod is movably inserted into an inner cavity of the insulating sleeve. A flashconnector is arranged at the bottom end of the lightning rod. A wire is arranged at the bottom end of the flash connector. The top end of the grounding needle is connected with the bottom end of the wire. The device is connected with lightning through a lightning rod, and lightning is conducted to the ground along a grounding pin connected with a wire. Lightning protection effect is achieved, a traffic light is prevented from being damaged by lightning, and the traffic light is protected. The lightning rod is clamped or loosened through the insulating base plate, so that the extension and retraction of the lightning rod in the inner cavity of the upright post are facilitated, the overall height of the device is conveniently reduced, the occupied space is reduced, and the transportation andstorage of the device are facilitated.

The invention discloses a flame-retardant lightning protection distribution box, comprising a box body, an insulating plate, a dust collecting box, a vacuum pump, a first connecting pipe, a filter element, a second connecting pipe, a hinge, a box door, a fixing block, a flashing Connector, lightning rod, metal ball, ground wire, hoop, heat shield, connection block, electric push rod, piston head, carbon dioxide cylinder, PLC controller, temperature sensor, suction pipe, connecting wire, one-way valve and gas pipe . The invention has reasonable structure and novel design. The lightning rod can effectively protect the box from lightning, so that the lightning can pass through the connecting wire, and then break down the air gap between the connecting wire and the grounding wire, so that the voltage drops and flows into the earth through the grounding wire. To the role of lightning protection, the heat insulation board can prevent the external heat from being transmitted to the inside of the box. When the temperature inside the box is too high, the carbon dioxide gas in the carbon dioxide cylinder can flow into the box through the gas pipe, and the box will be struck by lightning and ignite. Afterwards, it can extinguish fire inside the box.

The present invention is a lightning protection type outdoor transformer power distribution cabinet. The lightning protection type outdoor transformer power distribution cabinet includes a power distribution cabinet body, a rain-shielding cover, and a lightning rod. The lightning rod is fixedly connected to the rain-shielding cover. The rain-shielding cover covers the power distribution cabinet body, the rain-shielding cover is fixedly connected to the ground through fixing piles, and the rain-shielding cover is provided with a door body. Beneficial effects: the power distribution cabinet can be prevented from being corroded by rain, snow and frost, and meanwhile, the power distribution cabinet has the function of lightning induction and lightning protection.

The invention provides an agricultural sensor constant-temperature protection device based on multiple protection. The device comprises a constant-temperature chamber, a water spraying row, a metal flexible conduit, a water suction pump, a vertical seat, a heating cable, a protective cover, a temperature and humidity sensor, a humidifier, an inlet/outlet, a control panel, a roof frame, a lightning-protection heat-preservation protective cloth structure, a ventilation heat-dissipation observation protective door structure, a quick drainage damp-proof collecting box structure and a tightenable supporting anti-collapse pull rope structure. By arranging a lightning rod, a protective shell, a winding motor, a winding wheel, the heat preservation cloth and a counterweight sliding block, the lightning protection effect can be achieved on thunderstorm days through the lightning rod, the lightning protection effect is guaranteed, then the safety of the device is guaranteed, if the weather turnscold, the winding motor can be controlled through the control panel to drive a winding wheel to rotate in the protective shell, so that a counterweight sliding block drives the heat preservation cloth to move downwards until the roof frame is covered, the heat preservation protection effect can be achieved, and the growth survival rate of crops is guaranteed.

The invention discloses a falling type high voltage fuse which comprises an insulation supporting body and an arc extinction tube. A supporting arm extending from an upper end of the insulation supporting body is hinged to the upper end of the arc extinction tube. The lower end of the insulation supporting body is clamped with the lower end of the arc extinction tube through a clamping device, and a valve type lightning arrester is arranged in the middle of the insulation supporting body. The falling type high voltage fuse combines the lightning arrester and a falling type alternating current high voltage fuse integrally, an installing structure of an electric transforming and distributing circuit is simplified, and the novel falling type high voltage fuse has a lightning protection effect required by short circuit, overloading and electric transforming and distributing circuits.

The invention discloses a dining table with a waterproof patch board. The dining table mainly comprises the patch board, a table body and a power supply connection wire, wherein the patch board comprises a patch board shell, jacks, a power supply lightning arrester, a power supply input port and a waterproof device; the table body comprises table legs and a tabletop; a sliding groove is formed in the side edge of the tabletop; a pulley wheel is arranged on the back surface of the patch board shell; the pulley wheel is clamped into the sliding groove; the power input port of the patch board is connected with the power supply lightning arrester in the patch board shell through an electric wire, and then is connected with each jack through an electric wire. A hidden type lightning-arresting socket is additionally arranged on the table body, so that the dining table is safe and reliable, and spaces and resources are saved; meanwhile, one waterproof device is arranged around the jacks, so that the waterproof device has a waterproof protection effect on the patch board.

The invention discloses a lightning protection signal connecting line. The lightning protection signal connecting line is composed of a copper core wire, a metal woven mesh and a lightning protection device. The metal woven mesh is located around the copper core wire. The lightning protection device is arranged around the metal woven mesh. The lightning protection device comprises shielding housing and a grounding PCB board and a capacitor which are located in the shielding housing. The grounding PCB board is composed of a thick wire, a thin thick and a multilayer structure. The multilayer structure is formed by superposing metal sheets and metal power-ceramic material mixed layers alternately. According to the invention, the grounding PCB board is used to guide a large current generated by lightning into the multilayer structure through the thick wire, the metal power-ceramic material mixed layers are melted rapidly under the action of the large current to absorb most of the lighting energy, the shielding housing, the grounding PCB board and the capacitor can be use to form the lightning protection device to play the lightning protection role in thunderstorm weather conditions, and the whole lightning protection signal connecting line has advantages of good safety and good practicability.

The invention discloses a computer desk with a socket provided with a network lightning arrester. The computer desk mainly comprises a desk body and the anti-lightning socket. The anti-lightning socket is embedded in the side edge or the surface of the desk body. The anti-lightning socket comprises a power supply connection line, a power source input port, a conduit, the lightning arrester and an anti-lightning socket shell. The anti-lightning socket shell is in a square or round shape in axial symmetry. A rotary shaft is arranged on the symmetry axis of the anti-lightning socket shell. At least one elastic fixing shaft is further arranged with the center of the rotary center as the midpoint. A rotary insertion hole plate is arranged on the front side of the anti-lightning socket shell and provided with insertion holes. The power source input port is formed in the side face of the desk body. The anti-lightning socket is additionally arranged on the computer desk, so that the computer desk is simple in structure, convenient to use, safe and reliable and saves space and resources, the anti-lightning socket is hidden on the inner side when the computer desk is used, and attractiveness of the computer desk is not affected.

The invention discloses an occlusion type extension socket. The occlusion type extension socket comprises a shell, an anti-thunder module and jacks; a rotary jack panel, a power supply switch button and a power supply indication lamp are arranged on the shell; the anti-thunder module comprises an anti-thunder circuit board and an anti-thunder indication lamp; the anti-thunder module is arranged in the inverted conical shell and respectively connected with the jacks, the power supply indication lamp and a power supply switch in series; and the jacks are elastic jacks and provided with jack buttons for controlling the jacks. According to the occlusion type extension socket disclosed by the invention, the anti-thunder module can effectively block coupling current generated by lightening stroke, such that electrical appliances can be effectively protected; plugs of the electrical appliances can be pulled out without difficulty through the elastic jacks; the flexibility of the extension socket is improved through the rotary jack panel; and thus, the occlusion type extension socket disclosed by the invention is practical and safe.

The invention relates to a novel wind driven generator wind measuring bracket. The novel wind driven generator wind measuring bracket is provided with a pedestal; a supporting frame is arranged abovethe pedestal; the supporting frame comprises a cross beam; a semi-circular bracket is upwards arranged on the cross beam; the two ends of the semi-circular bracket are connected with the two ends of the cross beam correspondingly; an anemometer mounting hole, an upward compatible ultrasonic aerometeograph positioning rod, a wind indicator mounting hole and an upward aerometeograph positioning rodare arranged on the cross beam sequentially; a lightning rod is upwards arranged between the anemometer mounting hole and the upward compatible ultrasonic aerometeograph positioning rod; a main supporting column coaxial with the lightning rod is arranged below the cross beam; the lower end part of the main supporting column is hinged with the pedestal; and a reset piece maintaining the main supporting rod to be vertical is arranged between the main supporting rod and the pedestal. Various wind measuring instruments are arranged above the cross beam, and a semi-circular bracket integrated withthe lightning rod is arranged above the wind measuring instrument, so that lightning protection and lightning attraction are achieved and the protective effect is further achieved; and the folding type main supporting rod is provided, so part change during transportation is facilitated.