92results about "Telescopic elements" patented technology

The application discloses an over-constrained cross type deployable parabolic cylindrical antenna support structure and particularly relates to the technical field of aerospace. The application comprises a plurality of arc surface deployable units, cylindrical deployable units and a motion control device, the arc surface deployable units are deployed to form an arc-shaped support surface, the cylindrical deployable units are deployed to form a linear support surface, and the motion control device is used for controlling the cylindrical deployable units to drive the arc surface deployable units to be deployed or contracted. The technical scheme of the application aims to provide a reference value for the structural design of a large-scale deployable parabolic cylindrical antenna, realizes the support of the deployable parabolic cylindrical antenna, and is beneficial to the structural design of the deployable parabolic cylindrical antenna.

The utility model discloses an assembly assembly dotting frock, including work table, the top of work table is sequentially provided with feeding station, assembly station, pre -dotting station, dotting station and material collecting box, and the inside of work table is provided with through groove, and one side of through groove is provided with mounting panel, and the top of through groove is provided with material shifting board, and the side of mounting panel is provided with linear slide rail, and material shifting board passes through sliding block and is installed on linear slide rail, and one side of material shifting board is sequentially provided with first material shifting dog, second material shifting dog, third material shifting dog and fourth material shifting dog, and the utility model discloses through with antenna mast from feeding station sequentially after assembly station, pre -dotting station and dotting station, then, fall into the inside of material collecting box, realized the automatic integration of antenna mast feeding, assembly, dotting and collection, reduced the consumption of human resources, improved production efficiency.

An antenna for charging and measurement may comprise: a telescopic support installed at a lower portion of an aerial vehicle and configured to contract when the aerial vehicle lands on a wireless station and extend when the aerial vehicle takes off from the wireless station; and an antenna coil part deformed into a spiral shape when the telescopic support is contracted so that the wireless station receives wireless power and deformed into a conical shape when the telescopic support is extended to measure a radio signal.

The invention relates to the technical field of communication equipment, in particular to a communication base station which comprises a baseband processing unit, a radio frequency processing unit and an antenna feeder system which are installed on a stand column, the antenna feeder system is movably installed on the side portion of the stand column through a stretching component, and a movable frame of a stretching component body is installed on the side portion of the stand column in a sliding mode; the working angle and position of the antenna feeder system are adjusted by controlling the extension amplitude of the antenna feeder system on the side part of the stand column, so that the capability of resisting severe weather of the antenna equipment is improved; under the condition of hail weather, the antenna feeder system is erected, and the hail impact area is reduced; under the condition of storm weather, the antenna feeder system is folded towards the position close to the stand column, the extending distance of the antenna feeder system is shortened, the pressure borne by the connecting component is reduced, and the connecting component is prevented from being broken and damaged.

The utility model relates to the technical field of watches, in particular to a telescopic antenna cavity structure of an intelligent watch, which comprises a watch body, the top surface of the watch body is coaxially and rotatably connected with a rotary cover, the inside of the watch body is movably connected with a liftable lifting seat, and the top of the lifting seat is provided with a ceramic antenna module. The surface of the rotary cover is cooperatively provided with a probe hole for the ceramic antenna module to extend out, the surface of the lifting seat is fixedly connected with a guide block, a spring is fixedly connected between the guide block and the meter body, the bottom surface of the rotary cover is cooperatively provided with an arc-shaped inclined wall for limiting the guide block, and the highest point of the arc-shaped inclined wall is communicated with the probe hole. According to the technical scheme of the utility model, the problem that the static structure is difficult to adapt to the requirements of dynamic scenes in the antenna design of a conventional watch with a metal watchcase can be solved.

The application discloses a beam reconfigurable horn antenna device and a use method thereof, and belongs to the technical field of antennas, and comprises: a wave module which is fixedly arranged at the tail end of the horn antenna device; a three-axis telescopic framework which is connected to the front end of the wave module, and is composed of at least a transverse electric control telescopic component, a longitudinal electric control telescopic component and a depth direction electric control telescopic component, and is used for changing the aperture and the longitudinal depth size of the horn antenna; a distance feedback device which is arranged at the aperture position of the three-axis telescopic framework, and is used for detecting the actual aperture size in real time and feeding back the actual aperture size to a control extension; and a control extension which is electrically connected with the transverse electric control telescopic component, the longitudinal electric control telescopic component, the depth direction electric control telescopic component and the distance feedback device. The beam reconfigurable horn antenna device has the advantages of simple structure, small size, high structural strength, and can expand horn antennas of various frequency bands and gains, and has high development and use potential.

The fine-tuning type high-efficiency antenna and the prevention method can prevent the bad weather floating object from hitting, and belongs to the technical field of fine-tuning type antenna. In order to solve the problem that the antenna in the bad environment is easily hit by the gravel rolled up by the wind force, the normal operation of the antenna is affected, and even the signal transmission operation of the antenna is directly interrupted. If a protective device is directly added around the antenna, the signal receiving performance of the antenna is easily affected. The cover plate is swung to the upper end of the fine-tuning type antenna part to form a shielding cover, and is in an inclined state. At this time, the fan is towards the upper end of the fine-tuning type antenna part, and the wind force is applied to the fine-tuning type antenna part from top to bottom. The shielding cover shields the fine-tuning type antenna part in the bad weather. The rotation axis points of the traction swing rod and the cover plate are perpendicular to each other, so as to expand the activity range of the cover plate and the traction swing rod. Under the mutual auxiliary cooperation, the flying birds are driven away regularly, and the functionality of the cover plate is improved.

This invention discloses a large-aperture radio telescope system for the far side of the moon, comprising: an antenna interferometer array, an electro-optic conversion link, a lunar digital center, a relay transmitting antenna, a lunar relay satellite, and a ground data processing center. The antenna interferometer array acquires scene radiation signals using the principle of integrated aperture interferometry and transmits these signals to the electro-optic conversion link. The electro-optic conversion link receives the scene radiation signals, performs electro-optic modulation to convert them into optical signals, and transmits them to the lunar digital center. The lunar digital center demodulates the signals and transmits the modulated signals to the lunar relay satellite via the relay transmitting antenna. After up-conversion and forwarding, the signals are sent back to the ground data processing center for large-scale data processing and inversion imaging. This invention lays an important foundation for the engineering realization of a lunar-based large-aperture radio telescope.

The application provides a protection device for wired communication equipment, which comprises a base, wherein a swing mechanism, a lifting mechanism, an extending mechanism, a cleaning mechanism, a detecting mechanism and a balancing mechanism are arranged in the base; the protection device has the functions of communication signal enhancement, lightning protection, rainwater power generation, antenna cleaning, balance state detection and equipment balance maintenance; the communication capacity of the communication equipment is increased through the front-back swing of the second antenna; the lightning protection effect is improved through the up-down movement of the first antenna and the first lightning rod driven by the half circular gear and the continuous swing of the four second lightning rods driven by the cam; the rainwater is collected and the power generation shaft is driven to rotate by the rainwater impact rotating plate, the power generation shaft drives the generator to generate electricity, the stored rainwater is used for water spraying cleaning and water cooling of the antenna, and the balance state of the equipment is detected by the ball and the equipment is automatically balanced by the gravity ball.

The invention discloses a relay antenna structure and a vehicle-mounted rotor unmanned aerial vehicle, relates to the technical field of unmanned aerial vehicle antennas, and mainly solves the problem that manual intervention operation is needed when the length of a VHF frequency band antenna of a vehicle-mounted unmanned aerial vehicle is between 800mm and 1300mm. When the antenna automatically stretches out and draws back, extra power does not need to be provided, the antenna does not need to be manually operated to be unfolded and folded, the automation degree of the vehicle-mounted unmanned aerial vehicle when the communication relay function is achieved is improved, the operation time is obviously shortened, personnel do not need to climb for operation, and the safety of the personnel is greatly guaranteed.

The invention discloses a telescopic antenna hydraulic energy filter, which belongs to the technical field of hydraulic systems and comprises a positioning ring, a first energy filtering unit and a second energy filtering unit, the first energy filtering unit and the second energy filtering unit are of variable-diameter annular structures extending outwards along the positioning ring, the diameters of the ends, connected with the positioning ring, of the first energy filtering unit and the second energy filtering unit are the largest, and the diameters of the first energy filtering unit and the second energy filtering unit are gradually reduced from the ends connected with the positioning ring to the ends away from the positioning ring. Therefore, an opening and closing structure is formed; and the first energy filtering unit and the second energy filtering unit are provided with a plurality of energy filtering blades which are circumferentially arranged at intervals. The invention further discloses a hydraulic pipeline joint with the energy filter and an installation method. According to the invention, through a'closing-in-opening 'two-stage variable cross-section flow channel structure, the local impedance characteristic of an oil way is changed, and the problem of structural resonance noise which is easily generated in a hydraulic pipeline system and is excited by fluid pulsation is solved.

The application discloses a folding and unfolding mechanism of a four-surface array antenna, which comprises a mounting platform, a lifting mechanism arranged on the mounting platform, the lifting mechanism comprising a lifting upper frame, a lifting driving element, a swing rod I and a swing rod II, the lifting driving element being arranged between the lifting upper frame and the mounting platform, a front array surface and a rear array surface being hingedly connected to the front and rear ends of the lifting upper frame, the front array surface and the rear array surface being hingedly connected to the swing rod I between the mounting platform, left and right unfolding mechanisms being arranged on the lifting upper frame, a left array surface and a right array surface being hingedly connected to the left and right ends of the left and right unfolding mechanisms, the left array surface and the right array surface being hingedly connected to the swing rod II between the mounting platform. The application has the advantages that a folding and unfolding mode of a vehicle-mounted large-caliber four-surface array antenna from a transportation state to a working state is provided, single-vehicle transportation of the large-caliber four-surface array antenna can be realized and the transportation limit requirements of roads and railways can be met, the four-surface array antenna can be automatically and quickly unfolded, precious battlefield time is saved, and the battlefield survival capability is improved.

The utility model relates to a universal rod-shaped antenna, which comprises a mounting seat, a movable seat horizontally and rotatably arranged at the upper end of the mounting seat, a telescopic rod-shaped antenna longitudinally hinged at the upper end of the movable seat, and a spiral antenna arranged at the tail end of the telescopic rod-shaped antenna, a protective outer cover is arranged at the tail end of the telescopic rod-shaped antenna, and the helical antenna is arranged in the protective outer cover; a first wiring channel is axially arranged in the telescopic rod-shaped antenna, a second wiring channel is longitudinally arranged on the movable seat corresponding to the first wiring channel in a penetrating manner, a longitudinal third wiring channel is arranged on the mounting seat corresponding to the second wiring channel, and a wiring groove communicated with the lower end of the third wiring channel is formed in the outer side wall of the lower end of the mounting seat; the device is small and exquisite in overall structure, capable of extending or shortening, adjustable in orientation, high in adaptability and stable in signal.

An underground enclosure for housing electrical components is provided. The underground enclosure may include a shell defining an interior compartment housing a lift system, an equipment rack structure connected to the lift system, a top panel with a compartment opening for accessing the interior compartment, and an enclosure cover adapted to cover and removably seal the compartment opening. In certain applications, a telecommunications base station may also be provided. The telecommunications base station may include the underground enclosure and a cellular base station, the cellular base station including an antenna and a power source coupled to a signal processing unit. In alternative embodiments, the underground enclosure may be configured as a cube-shaped structure or a tubular structure.

A millimeter wave duplexer and dual-polarized antenna feed source integrated system comprises a shell, the shell is arranged on a rod body through an adjusting mechanism, the adjusting mechanism comprises an installation ring frame arranged on the rod body in a sleeving mode and a plurality of ratchet bars arranged on the surface of the rod body, and the outer side of the installation ring frame is provided with an accommodating cover extending in the axial direction of the installation ring frame. A pawl, a torsional spring and a driving assembly used for driving the pawl to rotate are arranged in the containing cover, the pawl is rotationally arranged in the containing cover through a rotating shaft, the rotating shaft is coaxially sleeved with the torsional spring, one end of the torsional spring is connected with the inner wall of the containing cover, the other end of the torsional spring is connected with the pawl, and the driving assembly drives the pawl to rotate in the first direction. In the process that the clamping end of the pawl is meshed with the ratchets of the ratchet bar, the mounting ring frame moves in the length direction of the ratchet bar so as to change the height of the mounting ring frame, unlocking and resetting of the pawl can be completed only through the driving assembly, and the adjusting efficiency is improved.

The utility model discloses a portable signal detection device which comprises a detection device, an outer frame assembly, an antenna assembly and a supporting assembly, the outer frame assembly is arranged on the outer side of the detection device, the antenna assembly is arranged on one side of the outer frame assembly, the supporting assembly is arranged on one side of the outer frame assembly, and a connecting rod is arranged in the outer frame assembly. The mounting plate is fixedly connected with the outer frame assembly, the rotating rod is rotationally connected with the mounting plate, the rotating rod is a damping rod, the connecting rod is fixedly connected with the supporting rod, the soft cushion is fixedly connected with the connecting rod, and a groove for pulling out the connecting rod is formed in the outer frame assembly. And meanwhile, the supporting rod drives the rotating rod to rotate on one side of the mounting plate, so that the supporting rod supports the detection device, an external tool is not needed for supporting, meanwhile, the device does not occupy more space during storage, and the problem that the device occupies more space during storage is solved.

The application belongs to the technical field of antennas, and particularly relates to a portable self-tracking telemetry antenna, which comprises a base and an antenna main body, the antenna main body is fixedly connected to the base, further comprises: a plurality of protection rods arranged at the top end of the base, the protection rods are of telescopic structure, the protection rods are annularly and uniformly distributed outside the antenna main body; and a supporting ring connected to the top end of the plurality of protection rods, the supporting ring is sleeved outside the antenna main body; in the use process after the antenna is installed, the protection rods are in the contracted state, the space occupation is reduced, the overall protective cover composed of the base and the supporting ring plays a shielding role on the internal mechanism, meanwhile, it is ensured that the periphery of the antenna main body is not shielded, and the interference influence on the received signal is reduced; when the antenna is carried, all the protection rods are stretched out and unfolded upwards, a plurality of protection rods and the supporting ring form a mesh cage, the mesh cage is sleeved outside the antenna main body, and the antenna main body is protected.

A roof-mounted emergency beacon used to alert emergency responders and observers of the location of an emergency. The beacon is activated by a smoke alarm, burglar alarm, or medical emergency alarm. Upon activation, the beacon light flashes, and the beacon extends to increase visibility. The beacon illuminates different colors to indicate different types of emergencies. Upon deactivation, the beacon lowers to return to the stowed position.

The invention relates to the technical field of ship communication, and discloses a ship very high frequency communication antenna automatic lodging device which comprises a base, an extension block is fixedly installed on the outer side of the base, and an adjusting mechanism is arranged at the top of the base. According to the automatic lodging device for the ship very high frequency communication antenna, seamless connection of communication in the lodging process is ensured through a main and standby dual-antenna cooperative working mode, when the main antenna column is controlled to lodge, the built-in telescopic column can synchronously lift the standby antenna rod and the signal intensifier, a very high frequency communication link is maintained at a lower position, and the communication efficiency is improved. The problem of signal interruption caused by traditional lodging is effectively avoided, in addition, the device is subjected to special protection design for a high-salt-mist and high-humidity marine environment, a key transmission part is provided with an anti-corrosion and clamping stagnation structure, a temperature balancer can weaken the influence of extreme temperature on components, and solar energy is combined for auxiliary power supply, so that the reliability of the device is improved. And the long-term operation stability and the energy adaptability are improved.

The utility model discloses a high-definition demonstrator handheld terminal which comprises a high-definition demonstrator handheld terminal body, a rotating mechanism and a storage assembly. The high-definition demonstrator handheld terminal body comprises a machine body and an antenna body; the antenna body is connected with the machine body through a rotating mechanism; the rotating mechanism comprises a storage assembly; the storage assembly comprises a storage groove, a rotating block, a spring groove and a volute spiral spring; a storage groove is formed in the top surface of the machine body; the rotating block is rotationally connected with the accommodating groove through a rotating shaft, and the circumferential surface of the rotating block is fixedly connected with the end part of the antenna body; at least one spring groove is formed in the accommodating groove; the rotating shaft is sleeved with at least one volute spiral spring, and the two ends of the volute spiral spring are fixedly connected with the rotating shaft and the inner wall of the spring groove respectively. The high-definition demonstrator handheld terminal is simple and reasonable in structure and ingenious in design, the antenna body can be conveniently stored, damage to the antenna body during carrying is avoided, and the use effect is good.

The invention belongs to the technical field of satellite antennas, particularly relates to an antenna support with a pitching structure, and aims to solve the problems that the pitching mechanism of the antenna support is easy to wear and lose efficacy after long-term exposure or frequent adjustment, so that an antenna is damaged due to self-weight falling, the working efficiency is reduced and the maintenance cost is increased. The upper side of the base is fixedly connected with two pitching supports oppositely at equal intervals. The antenna support with the pitching structure has the advantages that the pitching shaft is braked through the action of friction force at the first time when the weightless protection emergency assembly detects that the antenna body rotates in a weightless mode, so that the antenna body is prevented from continuing to rotate in the weightless mode; the antenna body is guaranteed not to collide with the ground to cause damage, the maintenance cost is reduced, meanwhile, under the action of friction force, the pitch shaft can be driven to rotate through the emergency motor, so that emergency pitch adjustment is carried out on the antenna body, and the working efficiency is improved while continuous working is guaranteed.

An expandable phased-array antenna assembly is described herein. Embodiments include an expander carriage configured to transition between a retracted configuration (e.g., during launch and initial deployment) and an expanded configuration (e.g., during operational ground communications). Embodiments include zigzag-shaped struts coupled with the expander carriage and having phased-array radiating elements (REs) mounted thereon. The expander carriage operate so that the struts are spaced at a smaller inter-strut spacing in the retracted configuration and at a larger inter-strut spacing in the expanded configuration. The struts and REs are arranged so that, in the expanded configuration, the REs form an operational phased-array lattice pattern.

The invention provides an automatic lifting type antenna mast control system based on Ethernet and optical fiber communication. The automatic lifting type antenna mast control system comprises a box body and a control mainboard, wherein the box body is provided with an operation panel and an interface connecting plate; the interface connecting plate comprises an Ethernet communication interface and an optical fiber communication interface; the operation panel is in signal connection with the control mainboard, and the control mainboard is externally connected with the Ethernet through the Ethernet communication interface of the interface connection board so as to be in network connection with an upper computer through the Ethernet; the control main board is in optical fiber connection with the automatic lifting antenna mast through the optical fiber communication interface of the interface connecting plate; the control mainboard generates a control instruction according to a panel operation signal transmitted by the operation panel, or after the control instruction is generated according to a remote operation signal sent by the upper computer, the control mainboard sends the control instruction to the automatic lifting antenna mast based on optical fiber connection; therefore, the lifting position of the rod body of the automatic lifting antenna rod is controlled.

The utility model discloses a folding indoor antenna which is characterized in that the folding indoor antenna comprises a first cylinder and a second cylinder, the top end of the first cylinder is provided with a sliding groove, the second cylinder is embedded in the sliding groove and is in sliding connection with the first cylinder, the top end of the second cylinder is provided with an installation groove, a first antenna rod is embedded in the installation groove, and the first antenna rod is in sliding connection with the second cylinder. Vertically downward first grooves are formed in the upper ends of the two opposite sides of the first column body, second antenna rods are embedded in the first grooves, one ends of the second antenna rods are rotationally connected with the upper end of the first column body, second grooves are formed in the two same sides, provided with the first grooves, of the second column body, and third antenna rods are embedded in the second grooves; one end of the third antenna mast is rotatably connected with the upper end of the second cylinder, and one side of the first cylinder away from the first groove is provided with a fixed sucker. According to the technical scheme of the utility model, the antenna can be prevented from colliding with or hooking other objects and being damaged, the structure is flat, and the space occupation ratio is reduced.

The telescopic antenna device comprises a power mechanism, a transmission mechanism, an antenna body and a cabin with an opening in the top end, and the transmission mechanism comprises a transmission plate, a lead screw and a lead screw nut which are in threaded connection; a protruding part is arranged on the inner wall of the top end of the cabin, the two ends of the lead screw are rotationally connected to the bottom end of the cabin and the protruding part respectively, one end of the transmission plate is connected with the lead screw nut, and the other end of the transmission plate is connected with the antenna body. The power mechanism is arranged at the bottom of the cabin body and is in transmission connection with the lead screw, and a sealing structure is arranged in the cabin body and used for isolating the lead screw from the lead screw nut. The antenna is applied to the field of marine equipment, the lead screw pair is adopted as a transmission mechanism for lifting the antenna body, meanwhile, the sealing structure is arranged to isolate the lead screw and the lead screw nut, it is guaranteed that the lead screw and the nut are not corroded by seawater, and therefore sealing performance can be kept while the resistance of an underwater vehicle appendage is reduced, and the service life of the underwater vehicle appendage is prolonged.

The utility model discloses antenna equipment and electronic device, wherein, antenna equipment includes: equipment main body, telescopic device and antenna, is provided with the accommodation cavity in equipment main body, and the one side of accommodation cavity forms the opening, and one end of telescopic device is fixedly connected with the target side of equipment main body, and the target side is opposite to the opening, and the antenna is set up in the accommodation cavity, and the antenna is connected with one end of telescopic device close to the opening, to be pushed out from the opening by telescopic device until part is exposed. Through above -mentioned structure, the utility model realizes the built -in and external of antenna through telescopic device simultaneously, can adjust the position of antenna according to actual demand, to meet the function optimization of antenna, can be favorable to the miniaturization of antenna equipment again, carry the antenna equipment conveniently, reduce the situation of the collision of antenna, improve the reliability of antenna.

The application discloses a winding rib type electrostatic forming film reflecting surface antenna device, which comprises a center wheel cylinder, the center wheel cylinder is a prism, and a plurality of elastic winding ribs are fixedly connected to the side surface of the center wheel cylinder; a flexible cable is arranged between two adjacent elastic winding ribs; a base cable net electrode is laid above the elastic winding rib and the flexible cable; the base cable net electrode is composed of triangular meshes; a film reflecting surface is arranged above the base cable net electrode; the film reflecting surface is in a parabolic shape; the base cable net electrode and the film reflecting surface are connected with an electrostatic power supply through a cable; and the film reflecting surface is connected with the center wheel cylinder. The application adopts an elastic winding rib type deployable structure as a support structure of the whole antenna system. The winding rib type structure can be folded and unfolded, and only occupies a small space when being folded, and the folding volume is significantly reduced.

The application discloses a mesh antenna metal mesh zero-constraint splicing method, which comprises the following steps: laying and hanging metal meshes on a working tension applying device, applying working tension to the metal meshes in the transverse and longitudinal directions; sewing tension control belts along the length direction of the metal meshes on both sides in the working tension state; overlapping two metal meshes which need to be spliced and are sewn with the same tension control belts, and overlapping the cross sections in the overlapping position according to the order of 'belt-mesh-mesh-belt'; sewing the two layers of metal meshes along the two sides of the tension control belts by using composite sewing threads; and repeating the above steps to sew all the metal mesh pieces required by the whole antenna reflecting surface in sequence. The metal mesh splicing is performed by using the lock edge needle method, the tension control belts can be removed after the splicing is completed, the splicing joint formed is in a'mesh-mesh' structure, the thickness is only 0.07-0.08 mm, the elasticity keeps the original elasticity of the metal mesh, the mesh surface tension is more uniform, and the risk that the antenna unfolding resistance is increased due to the slight shrinkage of the tension control belts under high temperature is effectively eliminated.