151 results about "Ground plate" patented technology

The invention discloses a miniaturized circular patch antenna loaded with four symmetrical L-shaped grooves, and relates to the technical field of wireless communication. The antenna comprises a circular patch, a dielectric substrate, a metal grounding plate and a coaxial line. The circular patch clings to the upper surface of the dielectric substrate, and the metal grounding plate is arranged on the lower surface of the dielectric substrate; four L-shaped grooves are formed in the circular patch, the geometric dimensions of the four L-shaped grooves are the same, and the four L-shaped grooves are symmetrically distributed around the circle center; the circular patch adopts a coaxial line for feeding, the inner conductor is connected to the circular patch, and the outer conductor is connected with the metal grounding plate. The symmetrical L-shaped grooves are etched in the circular patch, so that the resonant frequency of the antenna is effectively reduced, and the electrical size of the antenna is reduced; the antenna keeps relatively high gain and radiation efficiency, and has the advantages of simple structure and excellent performance.

The invention provides a GNSS (Global Navigation Satellite System) antenna. The GNSS antenna comprises a grounding plate; the inner ring annular radiator is arranged above the grounding plate, the inner ring annular radiator has a high-frequency working frequency band, and the high-frequency working frequency band ranges from 1560 MHz to 1610 MHz; the outer-ring annular radiator is arranged above the grounding plate, the outer-ring annular radiator and the inner-ring annular radiator are coaxial and are arranged at an interval to form an annular structure, the outer-ring annular radiator has a low-frequency working frequency band, and the low-frequency working frequency band is 1160-1300MHz; the inner ring annular radiator and the outer ring annular radiator are both of a central symmetry structure. The GNSS antenna provided by the invention can realize broadband coverage with a compact and simple structure, and ensures that the GNSS antenna has high gain and good radiation performance in the whole working frequency band.

The utility model discloses railway bridge expansion joint cleaning device, including trolley and motor, the middle part of trolley is installed with the mounting seat that can go up and down, and the motor is installed in the top of the supporting plate, and the loading box, supporting plate are located above the trolley ground plate, and the bottom plate is located below the trolley ground plate, and spring a is sleeved on every stand, and the upper end of spring a supports the bottom of supporting plate, and the upside of bottom plate is installed with the horizontal pivot through the bearing seat, and one end of pivot projects to the side of trolley and is installed with the cleaning disc subassembly, and the other end of pivot is connected transmission through the pulley subassembly between the output shaft of motor, and the cleaning disc subassembly includes spline shaft and two discs, and two discs are installed with spline shaft and can adjust the interval, and two discs are connected with several even distribution steel wire ropes between the edge. Utilize the rotation of cleaning disc subassembly to clean the sundries in expansion joint, and the width of cleaning disc subassembly can adjust and adapt to the expansion joint of different width, and the compatibility is good.

An electrical connector includes first electric wires, second electric wires, a housing and a ground plate. The first electric wires include first signal lines and first ground lines. The second electric wires include second signal lines and second ground lines. The housing includes first and second holding portions. The ground plate includes a plate main body placed between the first electric wires and the second electric wires. The first holding portion holds each conductor at each tip end portion of the first electric wires, and the second holding portion holds each conductor at each tip end portion of the second electric wires. The ground plate includes a first connector extending toward and connected to each conductor of the first ground lines from the plate main body, and a second connector extending toward and connected to each conductor of the second ground lines from the plate main body.

The utility model belongs to the automobile safety technical field provides a kind of anti-static grounding structure, including elastic conducting part, the quantity of elastic conducting part is multiple and is spiral, the bottom of elastic conducting part is equipped with ground plate, the top of elastic conducting part is equipped with the mounting base plate of fixed connection, the top of mounting base plate is symmetrically equipped with clamping plate, and the cooperation chamber is formed between two clamping plates, and limiting slot is equipped on the opposite surface of two clamping plates;It also includes quick-mounting pedestal installed on vehicle body, the bottom of quick-mounting pedestal is symmetrically equipped with metal plug, the metal plug and the limiting slot are mutually matched, and quick positioning assembly is equipped between quick-mounting pedestal and vehicle body;The utility model can effectively reduce abrasion by the self-adapting conductive structure, ensure that vehicle is continuously efficient in various road conditions Release static electricity.

The present application relates to the field of coking flue gas purification, and particularly relates to a coking furnace flue gas purification device, which comprises a lapping ground plate and a stirring flocculation cylinder fixedly installed on the top outer surface of the lapping ground plate, a atmospheric pollution liquid discharge tank is fixedly installed on the bottom surface of the lapping ground plate, a flocculation and caking backflow pipe arranged on the bottom surface of the stirring flocculation cylinder is fixedly connected to the input end of the atmospheric pollution liquid discharge tank, and a flocculation agent conveying tank is arranged on the top surface of the lapping ground plate. The combined flocculation agent conveying tank is used to infuse the chemical agent and water for flocculation and sedimentation into the stirring flocculation cylinder, so that the agent and water can fill the inside of the stirring flocculation cylinder. At this time, the coking furnace flue gas is infused into the inside of the stirring flocculation cylinder. When the waste gas starts to float from the bottom of the chemical agent, the stirring blade plates are stirred by the combined motor two, so that the waste gas and the chemical agent are fully mixed and stirred together.

The invention belongs to the field of agricultural machinery, and particularly discloses an automatic profiling device for a flexible header of a grain harvesting machine, which comprises a mechanical device, a hydraulic system and a control system, the mechanical device comprises a header, a profiling support arm assembly and a gap bridge; the header is mounted at the front end of the gap bridge; the profiling support arm assembly comprises a support arm welding part, a support arm shaft and a shock absorber; the shock absorbers are installed at the two ends of the supporting arm shaft, and one end of the supporting arm welding part is connected with the header through the supporting arm shaft. The other end of the support arm welding part is mounted on a ground contact plate of the header; the hydraulic system is mounted on the profiling support arm assembly; the control system is connected with the header; according to the profiling device, the three angle sensors are installed at the left end and the right end of the header respectively and transmit the angle between the cutting knife and the ground and the angle between the header and the ground in the left-right transverse direction to the controller, the supporting arm at the position is adjusted, the purpose of adjusting the header is achieved, and the situation that the header makes contact with the ground and is damaged is avoided.

A substrate support assembly is described herein, including a utility plate, a ground plate coupled to the utility plate, a fluid conduit disposed within the substrate support assembly and disposed through the utility plate and the ground plate, and a connector coupled to the ground plate, the ground plate housing a portion of the fluid conduit. The connector includes a biasing assembly and a fastener disposed in a pocket formed in the ground plate.

The invention relates to the technical field of antennas, in particular to a multi-frequency broadband common-caliber circularly polarized antenna. The antenna comprises a grounding plate, a patch radiator, a plurality of monopole groups and a feed assembly, the grounding plate is arranged at the bottom of the whole antenna, the patch radiator is arranged above the grounding plate, each monopole group corresponds to one frequency band and comprises a plurality of monopoles, the monopoles are distributed in the circumferential direction of the patch radiator, and the feed assembly is arranged above the patch radiator. The multiple monopoles of the multiple monopole groups are sequentially arranged in a staggered mode, one end of each monopole is electrically connected with the grounding plate, the other end of each monopole is in an open circuit state, and the patch radiator inputs radio frequency signals through the feed assembly. The antenna provided by the invention has the characteristics of multi-frequency independent tuning and design flexibility, high efficiency, light weight, low-cost structural characteristics, structural expandability and engineering realization simplicity and convenience.

The invention relates to the technical field of antennas, in particular to a circular polarization patch antenna with a wide axial ratio bandwidth. The antenna comprises a patch, a grounding plate, parasitic units and a reactance load structure, the grounding plate is located at the lowest layer of the whole antenna, the patch and the parasitic units are arranged above the grounding plate at intervals, the parasitic units are arranged near the patch, coupling gaps are arranged between the parasitic units and the patch at intervals, and the reactance load structure is connected to the parasitic units. The reactance load structure adopts one or more combinations of the following structural forms: a capacitive element combined connection conductor, an extension branch knot and a short circuit column. According to the circularly polarized patch antenna with the wide axial ratio bandwidth, the parasitic unit regulated and controlled by the load is arranged beside the main radiation patch, so that the problems of narrow axial ratio bandwidth, complicated structure or high cost of a circularly polarized antenna in the prior art are effectively solved.

The utility model discloses a dust falling device for deep hole blasting, and relates to the technical field of dust falling. The deep hole blasting dust falling device comprises a moving table, a storage device and spraying equipment are fixedly mounted at the top end of the moving table, and a positioning structure is fixedly mounted at the bottom end of the moving table; according to the deep hole blasting dust falling device, a positioning structure is arranged, a rotating shaft in a driving box is used for promoting a follow-up plate to conduct relative displacement between a guide inclined plate and a linkage inclined plate through a follow-up ring, the follow-up plate is promoted to drive a ground contact plate to make contact with the ground gradually through a lifting plate, and the ground contact plate can conduct positioning treatment on a movable table; and the moving table is limited through friction force between the ground contact plate and the ground, the overall stability of the device is improved, mechanical operation is adopted in the whole positioning process, then the manual installation mode is avoided, and the use efficiency of the device is remarkably improved.

Embodiments of the present disclosure relate to a processing chamber. The processing chamber includes a lid assembly, a baffle, a pedestal assembly, a ground plate, and a ground ring. A processing region is defined between the lid assembly and the pedestal assembly. The pedestal assembly includes an isolator plate assembly. The isolator plate assembly includes three or more plates. Each plate includes one or more alignment tabs, one or more protrusions, one or more lift pin holes, a ground plate, and a ground ring. The lid assembly, the baffle, and the pedestal assembly form an RF return path. The ground plate includes a cylindrical core, an annular body, and an annular protrusion. The ground ring includes an annular body, an annular wall, an annular connector, and an annular tab. The ground ring and the ground plate are electrically connected by an RF live.

The application discloses a low-profile slot type frequency reconfigurable antenna, comprising: a full-metal reflection baffle, an upper layer dielectric substrate and a lower layer dielectric substrate arranged in sequence; the full-metal reflection baffle is located on one side of the upper surface of the upper layer dielectric substrate; the upper surface of the upper layer dielectric substrate is provided with a first metal patch and a second metal patch; the upper surface of the lower layer dielectric substrate is printed with a feeding structure, and the lower surface is printed with two metal ground plates; the two metal ground plates are respectively provided with grooves, two groups of PIN diodes connected with the two grooves are arranged in the grooves, the conduction directions of the two groups of PIN diodes are opposite, and the two metal ground plates are electrically connected with an external single-chip microcomputer through a direct-current feeding line structure. In the application, the PIN diode is used as an electric control element, the response speed is improved, one group of voltages can be used to control the working state of the antenna through the two groups of PIN diodes placed in opposite directions, the complexity of the structure is reduced, the complexity of the control system is reduced, and the cost of the antenna is reduced.

The invention discloses a reconfigurable broadband circularly polarized metasurface antenna based on liquid, which is composed of three parts of structures including a top metal metasurface layer, a middle liquid layer and a bottom feed source antenna part. The top-layer metal metasurface comprises a dielectric plate F4B and a radiation metal sheet; the middle liquid layer is of a hollow structure in which liquid can be injected, and the structure consists of a medium PDMS (Polydimethylsiloxane); the bottom feed source antenna sequentially comprises a metal grounding plate, a dielectric plate F4B and a Wilkinson feed network from top to bottom. Signals are input to the Wilkinson power divider from the microstrip line connected with the 50-ohm microstrip line, and are transmitted to the middle liquid layer and the top metal metasurface through the four coupling gaps on the metal grounding plate, and switching of radiation and scattering modes by the antenna is realized by switching liquid injected into the liquid layer.

The utility model discloses an anti-static device of a power distribution cabinet for power supply, which comprises a cabinet body, a grounding plate is arranged in the cabinet body, a plurality of grounding columns are arranged on one side of the grounding plate, a pressing assembly is arranged on the outer side of each grounding column, the outer side of each grounding column is in threaded connection with a threaded sleeve, and a protective cover is fixedly arranged on the outer side of each threaded sleeve. One side of the protective cover is bonded with a pressure pad, one side of the cabinet body is provided with a box body, the top surface of the box body is provided with an alarm, and the box body is internally provided with a grounding monitoring assembly. According to the utility model, the threaded sleeve is screwed on the outer side of the grounding pole until the pressing pad presses the cable connected with the grounding pole, so that the cable is effectively prevented from being separated from the outer side of the grounding pole, the pressing pad has a pressing protection effect on the cable, and the cable is not easy to pull off from the outer side of the grounding pole when being pulled by external force.

The application discloses a kind of intelligent power distribution equipment grounding resistance detection device, it is related to grounding resistance detection device technical field, including box and clamping assembly, the box front side is provided with clamping assembly, the clamping assembly includes placement slot, the box front side is symmetrically provided with placement slot, and wire clamp is placed in placement slot, winding groove is formed in the one side of placement slot, and shaft rod is rotatably connected in winding groove, winding shaft is arranged in the middle of shaft rod, and torsional spring is connected on the both sides of winding shaft, pipeline is wound on winding shaft.The application can select the corresponding number of wire clamp according to the need when in use, and clamp it on the grounding plate to be detected, so that it can be uniformly monitored, and in the monitoring process, each monitoring point can be intermittently monitored separately, and when a fault is found in the monitoring point, the connection between the monitoring point and the main monitoring line is disconnected directly to avoid affecting the detection results of other monitoring points, and an alarm is issued to remind the staff to repair.

This utility model relates to the field of transformer grounding protection technology, and solves the problem that during the installation of protection devices, bolts are often used for positioning and installation. However, after long-term use, bolts are prone to rust or reduced hardness, causing inconvenience during disassembly. Specifically, it is a transformer neutral point grounding protection device, including a mounting base. Several positioning blocks are fixedly installed inside the mounting base. Isolation rods are fixedly installed on the surface of the positioning blocks. A surge arrester is installed on the side adjacent to the isolation rod, and a disconnecting switch is installed on the side adjacent to the surge arrester. A current transformer is fixedly installed on one side of the mounting base surface. A grounding plate is installed on one side of the isolation rod surface. Positioning components are provided on both sides of the bottom of the mounting base. The positioning components include positioning grooves opened on both sides of the mounting base surface. A limiting plate is fixedly connected inside the positioning groove by a positioning bolt. A threaded groove is opened in the middle of the surface of the limiting plate.

The utility model discloses an infrastructure backfill leveling device, which belongs to the technical field of infrastructure and comprises a grounding plate, the top of the grounding plate is fixedly connected with a vertical plate, the left side of the vertical plate is fixedly connected with a box body, the top of the box body is fixedly provided with a first motor, and the output end of the first motor is fixedly connected with a threaded rod. And the surface of the threaded rod is in threaded connection with a threaded sleeve, one side of the threaded sleeve is fixedly connected with a connecting column, and one end of the connecting column is fixedly provided with a second motor. A second motor is started, electric energy is converted into mechanical energy through the second motor, a rotating rod is driven to rotate, a connecting plate is driven to rotate through the rotating rod, a leveling plate is driven to rotate through the connecting plate under the cooperation of a hinge shaft and a hinge rod, and movement is stopped until the measurement direction of the leveling plate is changed. And through multi-directional measurement, the accuracy after measurement is greatly improved.

The invention relates to an electronic device, the electronic device comprises a conductive middle frame, a grounding plate, a plurality of first back-to-ground reinforcement members, a plurality of back-to-ground members, a first feed source and a second feed source, the conductive middle frame comprises a middle plate and a frame, and the frame is provided with a first radiator and a plurality of second radiators. The first radiator and the second radiator are respectively provided with a feed rib position and a grounding rib position, each grounding rib position is electrically connected with the middle plate through a grounding piece, and the middle plate is electrically connected with the grounding plate; at least one second radiator is correspondingly provided with a first ground reinforcement member, and the first ground reinforcement member is arranged close to the ground rib position of the second radiator and at least partially contacts with the middle plate; and the first ground reinforcement member covers part of the ground rib position and part of the middle plate of the second radiator, or the first ground reinforcement member is also used for being electrically connected with the grounding layer of the display screen assembly, so that the ground effect of resonance current on the radiators can be improved, the isolation degree between the radiators is improved, the interference is reduced, and the radiation performance of the antenna is improved.

The invention relates to the technical field of antennas, in particular to a millimeter wave double-frequency arc-shaped circularly polarized dielectric resonator antenna, which comprises a rectangular grounding plate, two groups of arc-shaped dielectric blocks, a plurality of layers of metal rings and a feed probe, and adopts rotary feed to enable the phase difference of feed ports to be 90 degrees in sequence to form good double-frequency circularly polarized performance. The rectangular grounding plate has the same length and width, the arc-shaped dielectric blocks surround the periphery of the double-layer metal ring, are perpendicular to the rectangular grounding plate and coincide with the radial centers of the two groups of arc-shaped dielectric blocks, the height and the thickness of the inner-layer metal ring are lower than those of the outer-layer metal ring, good matching is formed, and the feed probe is connected with the starting side wall surfaces of the arc-shaped dielectric blocks and the grounding plate through welding. The structure can realize a dual-band circular polarization characteristic in a millimeter wave frequency band, is simple in structure and easy to process and form an array on the premise of meeting other performance parameters, and is stable and reliable in structure due to the adoption of the medium material loading radiator, and can adapt to various bad environments.

An electrical connector includes an insulating body, a first ground plate and a first terminal module. The insulating body includes a receiving slot configured to receive a mating module. The first terminal module includes a number of first signal terminals and a first ground piece. The first ground piece includes a first base portion, a number of first ground terminals extending from the first base portion, and a first ground protruding portion extending from the first base portion. Each of the first signal terminals and the first ground terminals includes a first elastic arm. The first elastic arm includes a first contact portion protruding into the receiving slot to be in electrical contact with the mating module. The first ground protruding portion is in contact with the first ground plate to improve the grounding effect.

This utility model relates to the field of grounding equipment technology and discloses a ground anchor assembly for power grounding grids. It includes a grounding plate, a support frame welded to the top of the grounding plate, a hammer plate welded to the top of the support frame, and an anchor cylinder fixedly installed at the bottom of the grounding plate. The bottom end of the anchor cylinder is conical, and the interior of the anchor cylinder is hollow. Reinforcing components are movably installed on the side walls of the anchor cylinder. During installation, rotating the adjusting screw drives the lifting sleeve and the pressing cone block downwards, pushing two reinforcing protrusions out from the opening position, thereby enhancing the friction and stability between the anchor cylinder and the ground. When disassembling the entire ground anchor assembly later, rotating the adjusting screw in the opposite direction retracts the reinforcing protrusions into the anchor cylinder, reducing the friction between the anchor cylinder and the ground, thus facilitating the removal of the ground anchor assembly from the ground, avoiding damage to the ground anchor assembly, and meeting the needs for rapid disassembly and reuse of the ground anchor assembly.

The application discloses an electric bicycle compliance placement detection device, method and system and a storage medium. The device comprises a ground plate installed on a road surface and an RFID reader installed on a bicycle foot support. An RFID tag is arranged in the ground plate. When the foot support is placed in a set position, the electric bicycle is in a compliance placement state. When the foot support is placed in other positions, the electric bicycle is in a non-compliance placement state. When the RFID reader can identify the RFID tag, it is determined that the foot support is placed in compliance. Otherwise, it is determined that the foot support is placed in non-compliance. The application solves the problems of a large width or length required by a ground device, unstable placement of a vehicle, high placement position requirement of a sensor, large data calculation amount and low detection precision in the related art.

The invention relates to an ultra-low profile antenna module and electronic equipment. The ultra-low profile antenna module comprises a dielectric plate; the radiation assembly comprises a plurality of radiation units, each radiation unit comprises a plurality of radiation bodies, corresponding coupling paths are arranged between the radiation bodies, and the radiation assembly is provided with a first main coupling path comprising K cascaded magnetic coupling paths and a second main coupling path comprising K cascaded electric coupling paths, the coupling strength difference between the first main coupling path and the second main coupling path is smaller than a preset value; the metal floor and the plurality of short-circuit metal columns are used for realizing electric connection between the radiation assembly and the metal floor; and the plurality of feed metal columns are electrically connected to the corresponding radiation units of the radiation assembly and penetrate through the dielectric plate and the insulation isolation holes formed in the metal floor. According to the embodiment of the invention, the isolation between the radiation units in the radiation assembly can be improved, the antenna efficiency is improved, and the ultra-low-profile antenna module has the characteristic of compact structure.

The application discloses a compact four-mode four-port antenna, and belongs to the antenna field. The compact four-mode four-port antenna comprises a first dielectric substrate, a second dielectric substrate, a metal ground plate and a third dielectric substrate which are sequentially stacked, the upper surface of the first dielectric substrate is provided with a segmented annular metal patch, the upper surface of the second dielectric substrate is provided with a circular metal patch, and the lower surface of the third dielectric substrate is provided with a microstrip feed line and a solder pad. The four-mode four-port antenna further comprises a first metal column, a second metal column and a third metal column, the segmented annular metal patch is electrically connected with the microstrip feed line through the first metal column, the circular metal patch is electrically connected with the microstrip feed line through the second metal column, and the solder pad is electrically connected with the metal ground plate through the third metal column. The circular metal patch is used for realizing three polarized radiation modes, and the segmented annular metal patch is used for realizing a fourth polarized radiation mode, so that the manufacturing demand of miniaturization and integration of communication equipment can be met.

A contact assembly for an electrical connector includes: a row of signal contacts having plural contacting portions and plural mounting portions, the row of signal contacts including at least one pair of differential signal contacts; an insulator secured to the row of signal contacts; and an upper ground plate and a lower ground plate surrounding the row of signal contacts; wherein at least one of the upper ground plate and the lower ground plate integrally has plural ground mounting portions aligned with the plural mounting portions of the row of signal contacts; and at least one of the upper ground plate and the lower ground plate has plural shields each located between the at least one pair of differential signal contacts and an adjacent signal contact of the row of signal contacts.

The invention discloses a high-transmittance microstrip patch antenna and a manufacturing method thereof, the high-transmittance microstrip patch antenna comprises a transparent substrate base material, one surface of the transparent substrate base material is provided with a radiation unit metal grid layer, the other surface of the transparent substrate base material is provided with a grounding plate metal grid layer, the upper surface and the lower surface of the transparent substrate base material are provided with grooves, and the upper surface and the lower surface of the transparent substrate base material are respectively provided with a metal grid layer. The groove is filled with conductive metal to form a conductive metal layer, and the radiation unit metal grid layer and the grounding plate metal grid layer are embedded into the groove; through the structure of embedding the metal grids in the grooves and the complementary topology design, while the radiation unit maintains the solid grids to guarantee the radio frequency performance, the metal shading area is reduced through the hollowing of the grounding plate, and the collaboration of the visible light wave band transmittance and the square resistance is remarkably optimized in combination with the metal thickness gradient formed by the depth difference of the grooves; a double-sided alignment laser system is adopted to realize the alignment precision, and the problem of port isolation deterioration caused by pattern dislocation is radically inhibited.

The application discloses an ultra-wideband coupled patch antenna and a design method thereof, which comprises a top conductive layer, a ground plate and a bottom conductive layer; the top conductive layer comprises two driving patches, and two first coupled patches are arranged in parallel on the outer side of each driving patch; two second coupled patches are arranged on the front and back sides of each driving patch; the inner sides of the two driving patches are wrapped with two third coupled patches arranged vertically; in order to ensure the stability of the radiation pattern, only the driving patches and the second coupled patches are used as impedance adjustment patches; the ground plate is provided with a hole aperture coupling feed point, and the hole aperture coupling feed point is located at the center of the antenna; the bottom conductive layer comprises a bottom microstrip line, the bottom microstrip line is converted into a two-branch feed structure, and the two-branch feed structure transmits electromagnetic energy to the driving patches through the hole aperture coupling feed point. The application is based on a simple three-layer dielectric structure of coupling effect, and can reduce the processing cost and complexity of the antenna.

The invention discloses an electronic device which comprises a frame body and a matching circuit, the frame body is provided with a first radiator and a second radiator, the first end of the first radiator is provided with a first breaking joint, and a second breaking joint is arranged between the second end of the first radiator and the second radiator. The first radiator is sequentially provided with a first connecting point, a second connecting point and a first feeding point from the first end to the second end of the first radiator, the first connecting point is connected with the matching circuit, and the second connecting point is connected with the floor; the second radiator is in coupling connection with the first radiator through the second breaking joint, and one end, far away from the second breaking joint, of the second radiator is connected with the floor; the first radiating body comprises a first radiating branch knot between the first breaking joint and the second connecting point and a second radiating branch knot between the second connecting point and the second breaking joint, the length of the first radiating branch knot is larger than that of the second radiating branch knot, and the first breaking joint and the second breaking joint are located on the adjacent side edges of the frame body.