1045 results about "Isolator" patented technology

The invention relates to a low-frequency vibration isolator with a wide quasi-zero stiffness interval. The low-frequency vibration isolator comprises a bearing platform, a base, a first negative stiffness assembly, a second negative stiffness assembly and a linear vibration isolation assembly. The bearing platform and the base are arranged in parallel and are both provided with bolt holes and limiting holes; a linear vibration isolation assembly is installed between the bearing platform and the base. The first negative stiffness assemblies are symmetrically distributed with the center point connecting line of the bearing platform and the base as the symmetry axis. The top of the first negative stiffness assembly is connected with the bearing platform, and the bottom of the first negative stiffness assembly is connected with the base. The two ends of the second negative stiffness assembly are connected with the two first negative stiffness assemblies correspondingly. The low-frequency vibration isolator has the characteristics of high static rigidity and low dynamic rigidity, the contradiction between the bearing capacity and the vibration isolation performance of a linear vibration isolation system is effectively solved, and the effective low-frequency vibration isolation effect on a vibration-isolated object is achieved while the bearing capacity of the vibration isolator is guaranteed.

The invention discloses a calibration device with a spectrum self-calibration function and a high-resolution spectrum calibration method thereof. The device comprises a narrow-band light source, a broadband light source, an optical fiber isolator, a coupler, an interference system, a multi-way switch, an FP (Fabry-Perot) cavity, a collimator, an orthogonal dispersion system and a computer, wherein the orthogonal dispersion system consists of a cylindrical lens, a reflector, a virtual phase array, a grating, a focusing lens and an industrial camera; according to the device, different light source paths are gated, FP cavity modulation and orthogonal dispersion system light splitting are utilized, and an industrial camera is combined to receive light signals. According to the method, the mapping relation between pixels and wavelengths can be established, the two-dimensional spectrum is compressed into the one-dimensional calibration spectrum through light intensity modulation and normalization processing, the calibration process of the orthogonal dispersion system is simplified, and the measurement precision is improved; and system drift can be compensated in real time through self-checking calibration, and the reliability of a measurement result is ensured, so that accurate calibration and measurement of a high-resolution spectrum can be realized.

The invention provides an anti-common-mode transient interference circuit, a receiving circuit and a digital isolator, and the anti-common-mode transient interference circuit comprises a demodulation module which is electrically connected with an isolation capacitor of a receiving end, and demodulates a received carrier signal, so as to output an intermediate digital signal; and the filtering module is electrically connected with the demodulation module and is used for removing noise caused by the common-mode transient event in the intermediate digital signal so as to output a target digital signal. According to the invention, the filtering module is additionally arranged to remove the noise caused by the common-mode transient event and carried in the intermediate digital signal, so as to obtain the clean target digital signal, reduce the influence of the common-mode transient event on other links in the circuit system, and facilitate the subsequent function module in the circuit system to process the target digital signal.

The invention discloses a high-tolerance synchronous dual-band pulse laser, and relates to the field of lasers, and the laser comprises a first resonant cavity and a second resonant cavity; the first resonant cavity comprises a first pumping source and an optical annular cavity formed by sequentially connecting a first wavelength division multiplexer, a first thulium-doped optical fiber, a first optical coupler, a first isolator, a second wavelength division multiplexer, a high-nonlinearity saturable absorber, a third wavelength division multiplexer and a first polarization controller; the second resonant cavity comprises a second pumping source and an optical annular cavity which is formed by sequentially connecting a fifth wavelength division multiplexer, a second erbium-doped fiber, a second optical coupler, a second wavelength division multiplexer, a high-nonlinearity saturable absorber, a third wavelength division multiplexer, an electric control adjustable delay line, a fourth wavelength division multiplexer, a second polarization controller and a second isolator, and the fifth wavelength division multiplexer, the second erbium-doped fiber, the second optical coupler, the high-nonlinearity saturable absorber, the third wavelength division multiplexer, the electric control adjustable delay line, the fourth wavelength division multiplexer, the second polarization controller and the second isolator; and the first optical coupler and the second optical coupler respectively output synchronization pulses in the wave bands of 2 microns and 1.5 microns. The device is compact in structure, low in manufacturing cost, convenient to operate and capable of covering the mid-infrared band of 2 microns.

The invention provides an electromagnetic quasi-zero stiffness vibration isolator and a control method, and belongs to the technical field of vibration isolation. The vibration isolator comprises a base, a positive stiffness mechanism, a negative stiffness mechanism, a positive and negative stiffness connecting mechanism and a dynamic control module. The positive stiffness mechanism adopts a hydraulic spring to provide basic positive stiffness; the negative stiffness mechanism comprises a plurality of stator units distributed on the base in an annular array and a rotor suspended in the center of a magnetic field of the stator units, and is used for generating nonlinear negative stiffness; the top end of the hydraulic spring supports a load through the bearing table and keeps a preset gap with the inner wall of the rotor; the positive and negative stiffness connecting mechanism realizes displacement transmission and cooperative adjustment; the dynamic control module comprises a displacement sensor and a controller, the sensor collects displacement signals, and the controller adjusts excitation currents of the stator units according to the signals and dynamically adjusts electromagnetic force, so that the vibration isolator is kept in a quasi-zero stiffness state. The quasi-zero stiffness state can be still kept when the load changes, load self-adaption low-frequency vibration isolation is achieved, and the system stability and the vibration isolation performance are improved.

The invention provides an isolating switch performance monitoring system, which comprises a data acquisition module which at least comprises a current sensor and a signal conditioning circuit and is used for acquiring action current signals of a driving motor in an isolating switch in real time; the data processing module is used for performing filtering, noise reduction and time domain and frequency domain feature extraction on the received action current signal of the driving motor and establishing a corresponding waveform database according to the extracted features, and the waveform database at least comprises a normal waveform database and an abnormal waveform database; and the state evaluation module is used for comparing the real-time waveform with the reference waveform in the waveform database through a preset algorithm, identifying abnormal feature points existing in the real-time waveform and generating a corresponding performance evaluation result. Precise evaluation of the performance of the isolating switch is realized based on the current waveform of the driving motor.

The invention provides an anti-eavesdropping system and an anti-eavesdropping method for eavesdropping according to a substance vibration principle. The system comprises an anti-eavesdropping intelligent host which is arranged indoors and comprises a pickup module and a signal processing module; the pickup module is used for picking up a sound signal of an indoor target sound source; the signal processing module is connected with the pickup module and is used for processing the sound signal to generate an interference signal; and the at least one interference generator is arranged on a solid isolator for isolating the indoor space from the outdoor space, is connected with the anti-eavesdropping intelligent host, and is used for converting the interference signal into a mechanical vibration signal so as to interfere an eavesdropping device through the mechanical vibration signal. According to the environment medium vibration principle, anti-eavesdropping is effectively achieved through reverse interference of the mechanical vibration signals on the eavesdropping device, and the anti-eavesdropping device has the advantages of being independent of sites, rapid in deployment and low in cost.

The invention discloses a GIS disconnecting switch full-state quantity edge intelligent analysis system based on the Internet of Things, particularly relates to the field of online monitoring of high-voltage power equipment, and is used for solving the problem of false correlation interference caused by lack of stage anchor points and causal constraints in an existing power sequence overall synchronization method. Therefore, the problems of the jitter of the opening and closing position criterion and the inconsistency of multi-mode diagnosis can be solved. According to the method, event anchor points are extracted from a power sequence, an auxiliary contact sequence and a travel sequence on the edge side, a unified time axis and a stage tag sequence are constructed, and a multi-modal fragment stream is segmented; generating a causal mask according to the stage label, calculating a masking mutual information matrix, and outputting a peak sequence and a peak sequence index; calculating a mutual information arc length ratio and a peak sequence accumulative homomorphism in the window, assigning a trust mark based on a prototype facet area coefficient, and outputting a position sequence in the stage; and splicing the position track and generating an evidence association index to realize full state quantity intelligent analysis.

A measurement and control simulation device based on a measurement and control data transmission integrated system comprises an upper computer display control test module, a PC host module, a signal processing master controller module, an isolation DC / DC module, a down-conversion module, a filtering module, an isolator module and an outer end face interface module. The system has the characteristics of multiple modulation systems, a spread spectrum function, controllable output power, Doppler frequency change and the like, can be used for simulating a star chain control system link test in a ground test system, and fully improves the index assessment performance during system docking; meanwhile, the design of a down-conversion link meets the requirements for the strength and sensitivity of the received signal, the stability and accuracy of the radio-frequency signal after frequency conversion in a low-power injection state are remarkably improved, and a new scheme is provided for a high-frequency conversion mode. Besides, the display control module of the equipment has the functions of multiplexing, reconstruction, multi-data interaction and the like, so that multifunctional and multi-task full-system test coverage can be realized, the cost investment of test systems such as spacecrafts and the like is greatly reduced, and the multifunctional index test coverage efficiency is improved.

The demodulation circuit includes a waveform regulator, a first counter, a second counter, and an SR latch. The waveform regulator generates a regulated modulation signal according to a pair of differential isolated modulation signals, which is generated according to a modulation of an input data signal with a carrier clock signal. The first counter counts cycles of the regulated modulation signal so as to generate a set signal. The second counter counts cycles of a reference clock signal so as to generate a reset signal. The SR latch includes a set terminal for receiving the set signal, a reset terminal for receiving the reset signal, and an output terminal for outputting a demodulated output signal. The SR latch is triggered by the set signal to pull up the demodulated output signal, and is triggered by the reset signal to pull down the demodulated output signal.

The invention belongs to the technical field of quasi-zero stiffness vibration isolators, and particularly discloses a self-adaptive adjustment quasi-zero stiffness vibration isolator and a control method. Comprising a base and a bearing plate, and a plurality of positive stiffness units are arranged between the base and the bearing plate to provide basic support; the negative stiffness unit is arranged below the bearing plate, the two ends of the negative stiffness unit are connected with the adjusting structure through the moving unit capable of moving in the length direction of the driving unit, the adjusting structure is composed of a lead screw and an adjusting motor, the projection length of the negative stiffness unit in the horizontal direction can be changed, and therefore continuous adjustment of the negative stiffness is achieved. The vibration isolator is further provided with an acceleration sensor, a relative displacement sensor and a rotary encoder, and the sensors are connected with a processing unit to form a real-time monitoring and feedback control system. The low-frequency vibration isolation device can keep stable low-frequency vibration isolation performance under the condition change, and is suitable for high-precision equipment and complex industrial vibration environments.

The invention relates to a ground test gravity unloading device for simulating a space microgravity environment. A base is fixedly arranged at the bottom of a fixed frame; a suspension system is arranged above the base and comprises a fixed pulley block mounted on the fixed frame, a pull rope is wound on the fixed pulley block, the bottom of one end of the pull rope is connected with a dynamometer through a tension spring, and the bottom of the other end of the pull rope is wound on a winch mounted on the base; the hoisting system comprises an external excitation device which is suspended right above the detected object; the displacement sensing system comprises a displacement sensor. The device is simple in principle and construction mode, has a relatively ideal controlled unloading mode, has the test advantage of controllable fine adjustment, is mainly used for simulating a space micro-vibration / microgravity environment to carry out a ground test, reproduces a space environment on the ground to the greatest extent so as to verify the functions and performance of a spacecraft and components thereof, and has a wide application prospect. For example, whether the vibration isolator can work reliably on orbit is verified, so that the on-orbit risk is remarkably reduced, the research and development cycle is shortened, and huge cost is saved.

A control circuit and a control method for a flyback converter, and switching power supply are disclosed. The secondary side control circuit includes a volt-second acquisition unit and a volt-second determination unit. The volt-second acquisition unit calculates the volt-second product of the voltage across the secondary winding. The volt-second determination unit compares the volt-second product with a volt-second threshold to determine the communication status between the primary side control circuit and the secondary side control circuit. This detection process achieves a handshake between the primary and secondary sides and enables precise control of the primary side by the secondary side without the need for additional isolators, reducing circuit cost and loss.

The embodiment of the invention provides a novel high-integration ultra-wideband dual-channel high-energy microwave module for countering an unmanned aerial vehicle system, and relates to the field of electronic countermeasure, the module comprises a module cavity, the module cavity is internally provided with a high-voltage-resistant radio frequency substrate and a high-energy-storage radio frequency power supply control daughter board, and the high-voltage-resistant radio frequency substrate and the high-energy-storage radio frequency power supply control daughter board are arranged in the module cavity; a high-power radio frequency chip, an ultrahigh-power radio frequency chip and a high-voltage isolator are welded on the high-voltage-resistant radio frequency substrate; the high-power radio frequency chip and the ultrahigh-power radio frequency chip are connected with the high-energy-storage radio frequency power supply control daughter board; the high-power radio frequency chip and the ultra-high-power radio frequency chip are arranged in a cascade form; and the high-voltage isolator is located at the output cascade end of the last-stage ultra-high power radio frequency chip in the cascade chip structure. According to the invention, ultra-wideband high-power radio-frequency signal and high-airtightness transmission can be realized, single-channel output power of tens of thousands of watts can be provided, and the ultra-wideband high-power radio-frequency power divider is suitable for application scenes such as portable unmanned aerial vehicle countering or high-maneuverability unmanned aerial vehicle countering.

The invention discloses an O-band harmonic mode-locked laser based on double-pumping nonlinear polarization evolution, which comprises a first pumping source, a second pumping source, a first wavelength division multiplexer, a second wavelength division multiplexer, a gain fiber, a first polarization controller, a polarization dependent isolator, a second polarization controller and a coupler, which form a bidirectional pumping ring laser resonant cavity. Wherein the first polarization controller and the second polarization controller are arranged on the two sides of the polarization dependent isolator respectively to form a nonlinear polarization evolution mode locking structure together. By improving the power of the double pumping sources and adjusting the polarization state in the cavity, switching from fundamental frequency mode locking to multi-order harmonic mode locking can be achieved, the highest order can reach 33, the repetition frequency upper limit of an O-band all-fiber mode-locked laser is broken through, and the all-fiber mode-locked laser has the advantages of being compact in structure, high in damage threshold, low in cost and easy to integrate all fibers and is suitable for the field of optical communication and the like.

Described herein are isolator devices designed to reduce cracking and mechanical stress despite the use of wire bonds made of hard materials (e.g., copper-based). The isolators employ thin film dielectric materials with high dielectric strength and permittivity underneath the top coil (electrode) to enhance the isolation of the device. However, these materials are susceptible to cracking. Described herein are designs in which the dielectric material is partially removed from the isolator. A dielectric layer may be kept in the region(s) where its large dielectric permittivity is particularly beneficial (e.g., near the edge of a coil) but may be removed from the region immediately underneath the bonding pad, where a large amount of pressure is applied during the bonding process. Optionally, a cushion layer is employed to absorb some of the energy produced during the bonding process.

The invention provides an anti-impact six-degree-of-freedom quasi-zero stiffness vibration isolation platform which comprises a first-stage vibration isolation layer and a second-stage vibration isolation layer and is characterized in that the first-stage vibration isolation layer is composed of four self-adaptive quasi-zero stiffness vibration isolation systems and used for supporting a panel and isolating vibration from equipment or the ground; the second-stage vibration isolation layer is composed of four active vibration isolation systems and used for further attenuating residual vibration and restraining internal motion disturbance of equipment. According to the quasi-zero-stiffness vibration isolator, the core problem that a traditional quasi-zero-stiffness vibration isolator cannot adapt to dynamic load changes and the anti-impact requirement is solved, a high-reliability and ultra-quiet environment is provided for high-end precision manufacturing, six-degree-of-freedom vibration control can be achieved, a vibration isolation belt is wider, vibration isolation of a 0.1-500 Hz vibration source can be achieved, the bearing capacity is large, the 20000 kg bearing requirement can be met, and the quasi-zero-stiffness vibration isolator is suitable for large-scale popularization and application. The device can adapt to precise instruments of different models, and is wide in application range and high in universality.

The invention provides a digital isolator with both high-speed communication and high common-mode transient immunity. The digital isolator comprises a transmitter, a coupling inductor and a receiver, the transmitter comprises an oscillator, a modulation capacitor assembly and a common-mode transient immunity enhancement module; the oscillator is configured to receive a data signal and generate a first differential signal based on the data signal; the modulation capacitor assembly is configured to modulate a code element 0 into a first frequency and modulate a code element 1 into a second frequency; the common-mode transient immunity enhancement module is configured to determine a bias control signal according to the first differential signal; the receiver is configured to receive the second differential signal and obtain a square wave signal based on the second differential signal; obtaining a triangular wave signal based on the square wave signal; obtaining the maximum value of a triangular wave signal according to the falling edge signal of the square wave signal; and obtaining a target data signal based on the maximum value, so as to solve the problem of low communication and common-mode transient immunity performance of the existing digital isolator.

The utility model discloses a separator, a lock and a door and window system. The separator is used for the door and window system, the door and window system comprises a lock and two opposite door plates, a mounting opening is formed between the two door plates, the lock comprises a lock cylinder, a first handle seat and a second handle seat, the lock cylinder is arranged in the mounting opening, and the first handle seat and the second handle seat are arranged on the two sides of the lock cylinder in a one-to-one correspondence mode; the isolation piece is used for being arranged between the two door plates, the isolation piece is used for clamping one of the two door plates together with the first handle seat, and the isolation piece is used for clamping the other one of the two door plates together with the second handle seat. In this way, the separator can be arranged between the two door plates and enables the two door plates to be separated from each other in the clamping process, and the problem that the door plates deform due to the fact that clamping force is too large is solved. Specifically, the separator provides an additional supporting effect on the two door plates, and the clamping force of the handle seat on the door plates is effectively dispersed, so that the structural integrity of the door plates is protected, and the influence of deformation of the door plates on the overall attractiveness of the door and window system is avoided.

The invention relates to a full duplex digital isolator. A circuit is provided. The circuit comprises: a first transmitter circuit having a first input terminal arranged to receive first input data and a first node arranged to transmit first intermediate data corresponding to the first input data; a first receiver circuit including a second node arranged to receive the first intermediate data and a first output terminal arranged to generate first output data corresponding to the first input data; comprising a second input terminal and said second node, the second input terminal arranged to receive second input data, the second node further arranged to transmit second intermediate data corresponding to the second input data; and a second receiver circuit comprising a first node and a second output terminal, the first node being further arranged to receive the second intermediate data, and the second output terminal being arranged to generate second output data corresponding to the second input data.

This invention discloses a comprehensive identification test device and method based on software-defined radio technology, belonging to the field of avionics equipment testing. The device includes: a core processing and control unit, employing a multi-channel high-speed AD / DA and MPSoC FPGA architecture, supporting concurrent operation of various conventional aircraft identification functions through multiple internally integrated models; a radio frequency transceiver module, connected to the core processing and control unit, used for digital frequency conversion and analog-to-digital conversion of signals; a high-power radio frequency front-end component, internally equipped with multi-stage attenuation circuits and isolation devices, used for physical isolation and filtering attenuation of transmitted and received signals, ensuring its power covers the dynamic range of airborne received signals; and a remote control interface for receiving remote control commands to achieve automated test linkage. This invention allows direct connection to test the receiving performance of airborne equipment without the need for external high-power accessories, achieving a high degree of integration and automation of the test equipment, significantly improving detection and troubleshooting efficiency.

The utility model belongs to the technical field of integrated circuit packaging, and discloses an isolator chip packaging heat dissipation structure which comprises a ceramic substrate, an isolator chip and a heat dissipation assembly, the front face of the ceramic substrate is provided with an isolation groove and a heat dissipation channel, an electromagnetic shielding layer is embedded in the isolation groove, and the heat dissipation channel is provided with a heat dissipation hole. An isolation groove is formed in the ceramic substrate, the heat dissipation channel penetrates through the ceramic substrate and is distributed in a spiral shape, the isolator chip is packaged in the isolation groove, the isolator chip is electrically connected with the ceramic substrate, the heat dissipation assembly comprises a metal heat conduction layer and an insulation buffer layer which are stacked alternately, and the heat dissipation assembly is fixed to the back face of the ceramic substrate and communicated with the heat dissipation channel. According to the utility model, the electromagnetic shielding layer and the spiral heat dissipation channel are arranged on the ceramic substrate, so that the anti-interference of high-frequency signals is realized, the heat dissipation area is expanded, the heat dissipation efficiency of the isolator chip is improved, and the stability and reliability of the isolator chip in a high-temperature and high-power environment are ensured.

The invention provides an optical feedback resonance enhanced forward Brillouin demodulation structure, which comprises a tunable laser, a first polarization controller, an erbium-doped optical fiber amplifier, an optical coupler, an optical isolator, a forward Brillouin gain optical fiber, a band-pass filter and a photoelectric detector, a second polarization controller; and a spectrum analyzer. The first polarization controller is connected with a port a of the optical coupler, a port b of the optical coupler is connected with an input end of the erbium-doped optical fiber amplifier, an output end of the erbium-doped optical fiber amplifier is connected with the optical isolator, the optical isolator is connected with the band-pass filter, the band-pass filter is connected with the forward Brillouin gain optical fiber, and the optical fiber is fed back to a port c of the coupler through the second polarization controller. The output power of the erbium-doped optical fiber amplifier is controlled, and the polarization states of the pump light and the feedback laser are controlled by the first polarization controller and the second polarization controller, so that the forward Brillouin effect is amplified.

The demodulation circuit includes a waveform regulator, a first counter, a second counter, and an SR latch. The waveform regulator generates a regulated modulation signal according to a pair of differential isolated modulation signals, which is generated according to a modulation of an input data signal with a carrier clock signal. The first counter counts cycles of the regulated modulation signal so as to generate a set signal. The second counter counts cycles of a reference clock signal so as to generate a reset signal. The SR latch includes a set terminal for receiving the set signal, a reset terminal for receiving the reset signal, and an output terminal for outputting a demodulated output signal. The SR latch is triggered by the set signal to pull up the demodulated output signal, and is triggered by the reset signal to pull down the demodulated output signal.

The invention discloses a radio frequency circuit and a control method thereof, a radio frequency heating device, equipment and a medium, and the control method comprises the steps: controlling the radio frequency circuit to work in a first state, and the first state comprises that the working frequency point of a signal generation device is a preset frequency point, and the output power of a power amplifier is preset power; the preset power is smaller than rated output power of the power amplifier; controlling the signal generation device to traverse frequency points in a predetermined frequency band, and detecting the reflection power of the power amplifier in real time to obtain a target frequency point corresponding to the minimum reflection power; and controlling the signal generating device to work at the target frequency point, and adjusting the attenuation value of the automatic level control device, so that the output power of the power amplifier is the rated output power, and the attenuation value corresponding to the rated output power is the target attenuation value. An isolator is not needed, and the power amplifier can output rated power under different working frequencies by adjusting the attenuation value of the automatic level control device.

The liquid elastic vibration isolator integrally comprises a liquid cavity surrounded by a vulcanized body, the upper portion of the liquid cavity is sealed by an upper cover plate, the interior of the liquid cavity is divided into an upper liquid cavity body and a lower liquid cavity body through a flow channel body, the flow channel body is provided with a liquid channel for communicating the upper liquid cavity body with the lower liquid cavity body, and a lower cover plate is assembled below the vulcanized body. A rubber elastic piece is arranged between the runner body and the lower cover plate, a lower liquid cavity is defined by the rubber elastic piece and the vulcanized body, and an air cavity is defined by the rubber elastic piece and the lower cover plate. In the initial state, the rubber elastic piece is in a bowl shape with the center protruding upwards, an upper protruding arc is formed at the center protruding position, the outer periphery of the upper protruding arc is concaved downwards to form a lower concave ring, the outer periphery of the lower concave ring protrudes upwards to form an upper protruding ring, the outer periphery of the upper protruding ring is a horizontal annular straight edge, and any adjacent shapes are in smooth transition connection. The size of the liquid cavity and the size of the air cavity are changed by changing the shape of the rubber elastic piece, and then the load transmitted to the machine body is reduced.

An isolator comprises an inner core including a bore extending therethrough, an outer shell including a cylindrical wall and an elastomer positioned radially between the inner core and the outer shell. The elastomer includes a first leg and a diametrically opposed second leg as well as a third leg in a diametrically opposed fourth leg. The first leg and the second leg interconnect the inner core and the outer shell and originate at the inner core and diverge radially outwardly along a first longitudinal direction. The third leg and the fourth leg each interconnect the inner core and the outer shell and originate at the

The utility model discloses an electric disconnecting switch, which is characterized by comprising a base, two groups of insulating terminals are symmetrically arranged on the base, the insulating terminals are fixedly provided with a static contact seat, the static contact seat is provided with a static contact, the base is provided with a rotary contact device, and the rotary contact device is provided with a rotating shaft. The rotary contact device comprises conductive arms, a transmission rod and a rotary drum which are symmetrically arranged, the transmission rod is arranged in the rotary drum, the rotary drum is movably connected with the base, the conductive arms are arranged on the outer side of the rotary drum, a transmission gear is arranged below the base, the transmission gear is connected with the transmission rod, and the transmission gear is connected with a driving motor. According to the utility model, through the arrangement of the rotary contact device, the conductive arm can be rotated and retracted during opening and is far away from the static contact in a relatively limited space, so that the structure is more compact; according to the utility model, a single driving motor is used to realize segmented control of different motion states of unfolding, folding and rotating the conductive arm at a constant speed.

This utility model relates to an intelligent prefabricated MABR wastewater treatment equipment with enhanced denitrification effect. It includes a housing and an intelligent control system. The housing is internally divided by partitions and perforated walls into an influent buffer tank, an anaerobic tank, a MABR membrane tank, an aerobic tank, a sedimentation buffer tank, a sedimentation tank, a return tank, a disinfection tank, and an equipment room. The intelligent control system includes a cabinet housing a touch screen, circuit breaker, electricity meter, fuse, DIN rail socket, fuse terminal, power module, CPU module, isolator, distribution terminal, electromagnetic relay, DTU, contactor, thermal relay, incoming line terminal, and distribution terminal. This utility model overcomes the problems of low denitrification efficiency, high energy consumption, large footprint, low level of intelligence, and inconvenience for internal equipment maintenance and replacement associated with traditional integrated wastewater treatment equipment. It is mainly used for small-scale, decentralized domestic wastewater treatment with high total nitrogen and low carbon-to-nitrogen ratio.

The utility model discloses a wet granulation system with a cleaning function, which comprises a cleaning and inactivation component, an isolator communicated with the cleaning and inactivation component, and a detection component used for detecting the cleaning effect of each component in the isolator, a wet granulator, a fluidized bed, a granulator and a mixer assembly are arranged in the isolator; the cleaning and inactivating assembly comprises a buffer tank, a heat exchanger, and a first cleaning pipeline and a second cleaning pipeline which are respectively communicated with the upper end and the lower end of the buffer tank; the first cleaning pipeline communicates with the cleaning agent assembly and the inactivating agent assembly and is connected with a water inlet of the heat exchanger. And the second cleaning pipeline is connected with a water outlet pipeline of the heat exchanger and is also respectively communicated with corresponding cleaning pipelines of the wet granulator, the fluidized bed, the granulator and the mixer assembly. The utility model aims to realize the whole process of cleaning, purging and inactivating equipment by using one pipeline, so that the manufacturing cost can be saved while the cleaning efficiency is improved.