205 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 relates to the technical field of communication antennas, in particular to an airborne arc conformal antenna, which comprises a radiant panel, a dielectric plate, a grounding plate, a short circuit plate and a radio frequency connector, the inner cambered surface of the dielectric plate is connected with the outer cambered surface of the grounding plate, and the outer cambered surface of the dielectric plate is connected with the inner cambered surface of the radiant panel; the radiation plate comprises an upper surface metal layer, a lower surface metal layer and a quarter-wavelength short-circuit structure, the quarter-wavelength short-circuit structure comprises a radiation surface on the upper surface, a short-circuit surface on the lower surface and a feed disc, and the radiation surface and the short-circuit surface as well as the feed disc and the radiation surface are connected through corresponding metalized through holes; the first end of the short-circuit sheet is connected with the short-circuit surface, the second end of the short-circuit sheet is connected to the side face of the dielectric plate and connected with the grounding plate, the radio frequency connector is connected to the inner arc face of the grounding plate, and an inner conductor of the radio frequency connector sequentially penetrates through the grounding plate and the dielectric plate and is connected to the feed disc. According to the utility model, the length of the antenna is shortened, the requirement of small radiation window limitation of an aircraft can be met, and the working bandwidth of the antenna is expanded.

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 application relates to the technical field of pipeline laying, in particular to a direct-buried pipeline laying device which comprises four rectangularly-distributed machine bases and a plurality of universal wheels installed below the machine bases, the two ends of a wrapping steel belt are wound by a winding motor, the overall height of the wrapping steel belt and the pipeline is placed, the pipeline can be steadily lowered to a certain height, and the pipeline can be accurately buried in a groove, the device has the characteristics of convenient laying, the rotating angle of a fixed pulley is adjusted to adjust the position of the vertical point of the two ends of the wrapping steel belt, the wrapping steel belt and the pulling rope are prevented from contacting the inner wall of the groove, the device can adapt to grooves with different widths, the normal laying of the pipeline is not affected, the ground plate below the machine base is lowered in synchronization with the rotation adjustment of the fixed pulley until the ground plate is inserted into the ground on the two sides of the groove, the stability of the four machine bases, that is, the overall device, is reinforced during pipeline laying, and the device has the characteristics of further convenient laying.

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 utility model discloses a mine car with a car arrester, and relates to the technical field of mine car equipment. The mine car with the car arrester comprises a moving structure, a transporting structure is arranged at the top end of the moving structure, two positioning structures are arranged in the moving structure, and the two positioning structures are located on the two sides of the transporting structure correspondingly; according to the mine car with the car arrester, a positioning structure is arranged, and a built-in motor in a driving box is used for promoting a moving ring to drive a follow-up inclined block to move towards an abutting wheel through a rotating shaft, so that the abutting wheel is driven by the follow-up inclined block to drive a lifting plate to drive a ground contact plate to gradually make contact with the ground; the contact friction force between the mine car and the ground can be increased through contact between the ground contact plate and the ground, so that the mine car has the braking effect, and the phenomenon that the mine car is prone to sliding on a track-free roadway bottom plate is avoided.

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.

Distribution element high-frequency (HF) filter, comprising: a ceramic substrate that has a grounding plate on a first surface of the substrate; a first resonator on a second surface of the substrate opposite the first surface, wherein the first resonator is electrically connected to a first input / output interface (I / O interface) near a first end of the substrate; a second resonator on the second surface of the substrate, wherein the second resonator is electrically connected to a second I / O interface near a second end of the substrate opposite the first end; one or more intermediate resonators on the second surface of the substrate, wherein the one or more intermediate resonators are located between the first and the second resonator, wherein each of the first, second and one or more intermediate resonators has an electrical length that nominally corresponds to half a wavelength of a center frequency of the filter, wherein each of the first, second and one or more intermediate resonators comprises a resonator section between first and second resonator end sections, which are electrically connected to the grounding plate by a conductive wall near a common side of the substrate, wherein each resonator at least partially surrounds a section of the surface of the substrate on which the resonator is located.

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 invention relates to a device for providing a ground path, used for shielding, between a printed circuit board (8) and an electrically conductive housing component (2) having a ground plate (10) which has radially resilient contact elements (14). The device according to the invention is characterised in that the printed circuit board (8) is electrically connected to the ground plate (10) via a screw connection or rivet connection (13), wherein the electrically conductive connection between the ground plate (10) and the housing component (2) is established via the resilient contact elements (14) of the ground plate (10). The device can in particular be used in a high-voltage battery.

The electronic device provided by the application includes a radiator, the radiator includes a first radiation section and a second radiation section, the first radiation section includes a first free end and a first ground end arranged oppositely, the second radiation section includes a second free end and a second ground end arranged oppositely, an insulating gap is arranged between the first free end and the second free end, and positions of the first ground end and the second ground end electrically connected to a reference ground plate are located in a target excitation area; a signal end of a signal source is electrically connected to the first radiation section, a ground end of the signal source is electrically connected to the second radiation section, the signal source is used for exciting a loop current formed on the first radiation section, the target excitation area of the reference ground plate and the second radiation section, the loop current is used for exciting a target resonance mode supporting a target frequency band formed on the reference ground plate, and a resonance current of the target resonance mode is mainly distributed along a first reference ground edge. The electronic device provided by the application can improve the antenna performance.

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.

The application is suitable for the field of communication equipment technology improvement, and provides a filtering patch antenna with cross polarization suppression, which comprises a patch radiator, a filtering feed structure and a ground plate, the lower surface of the filtering feed structure is connected with a coaxial line through the ground plate, the upper surface of the filtering feed structure is connected with the lower surface of the patch radiator, and the filtering feed structure is filtered and fed according to two C-shaped microstrip line networks. The filtering function can be realized without increasing the volume of the antenna, the omnidirectional consistency of filtering is ensured, the filtering antenna also has the function of suppressing the cross polarization of the patch antenna, and the working performance of the antenna is improved.

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.