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129results about How to "Reduce connectivity" patented technology

Dosing, stirring and monitoring device for tap water treatment coagulating basin

The invention provides a tap water treatment coagulating basin dosing stirring monitoring device which comprises a stirring motor and a stirring shaft, a mounting platform is erected on a coagulating basin, the stirring motor is mounted on the mounting platform, the stirring motor and the stirring shaft are in transmission connection through a coupler, and the tap water treatment coagulating basin dosing stirring monitoring device further comprises a dosing device and a sensor assembly. The chemical adding device comprises a chemical box, a chemical adding pump, a chemical conveying pipe and a rotary chemical conveying device, a plurality of chemical adding openings are formed along the stirring shaft, the chemical adding pump conveys chemicals in the chemical box to each chemical adding opening through the rotary chemical conveying device and the chemical conveying pipe, and the chemicals are put into the coagulating basin through the chemical adding openings. The dosing, stirring and monitoring device for the tap water treatment coagulating basin provided by the invention adopts an integrated design, integrates stirring and dosing to realize a compact structure and function fusion, can obtain key parameters of a water body in the coagulating basin in real time through the sensor assembly, realizes accurate and automatic adjustment of the stirring speed and the dosing amount based on monitoring data, and improves the working efficiency. The stability and the reliability of the coagulation effect are ensured.
Owner:NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER +4

Magnesium phosphate cement-based concrete and preparation method thereof

The invention provides magnesium phosphate cement-based concrete. The magnesium phosphate cement-based concrete is prepared from the following raw materials in parts by weight: 10-20 parts of phosphate, 30-50 parts of active magnesium oxide, 0.5-3 parts of a retarder, 5-15 parts of a mineral admixture, 0.5-4 parts of a functional additive, 20-30 parts of fine aggregate, 2-5 parts of reinforced fibers and 10-28 parts of water. The invention also provides a preparation method of the magnesium phosphate cement-based concrete. The magnesium phosphate cement-based concrete provided by the invention has a multi-layer anti-corrosion barrier, a compact microstructure, an intelligent ion barrier and good environmental adaptability, and can meet the use requirements in complex and severe environments.
Owner:CHINA CONSTR EIGHTH BUREAU SOUTH CHINA CONSTR CO LTD

Horizontal integrated hairpin type feed water heater for power plant

The invention relates to a horizontal integrated hairpin type feed water heater for a power plant. The horizontal integrated hairpin type feed water heater comprises a left pipe box, a right pipe box, two pipe plates, a group of feed water inlet and outlet pipes, a U-shaped pipe bundle, two straight-section shells, a hairpin bend connected with the two straight-section shells, a steam inlet, a drain outlet and other parts. The device is particularly suitable for heaters with small pipe side feed water flow and higher temperature rise; the high-temperature feed water and the low-temperature feed water are distributed in the two relatively independent tube boxes, so that the temperature difference stress of a tube plate and a tube box sealing head is avoided; the overheating section, the condensation section and the subcooling section are integrated in one device, so that the occupied area of the device and the number of connecting pipelines can be reduced; deformation stress caused by thermal displacement difference of two sections of barrel bodies of the equipment can be greatly reduced through four-support configuration; the overall height of the equipment can be reduced through horizontal arrangement, and overhaul and maintenance are facilitated.
Owner:SHANGHAI ELECTRIC POWER GENERATION EQUIPMENT CO LTD

Sample adjusting device for microbiological detection analyzer

The invention discloses a sample adjusting device for a microbiological detection analyzer, and relates to the technical field of microbiological detection analysis, the sample adjusting device comprises a device main body, an inner cavity of the device main body is fixedly connected with a fixing plate, the fixing plate is fixedly connected with a servo motor, an output shaft of the servo motor is fixedly connected with a rotating disc, and the rotating disc is fixedly connected with a rotating shaft of the rotating disc. A crank is rotationally connected to the rotating disc, a loading table is rotationally connected to the end, away from the rotating disc, of the crank, a guide rail is fixedly connected to an inner cavity of the device body, and a first sample tube and a second sample tube are arranged on the loading table; in the process that the test tube moves to the position below the first sample tube and the second sample tube, a piston rod of a piston barrel moves, detection liquid in a liquid storage barrel is dropped into the test tube, meanwhile, the dropping quantity of the detection liquid can be adjusted and controlled, errors caused by different persons in manual operation are avoided, and the detection accuracy is improved. In addition, direct contact between operators and reagents and samples is reduced in the automatic process, and the risks of cross contamination and environmental pollution are avoided.
Owner:YOUMING BIOTECHNOLOGY (SHANDONG) CO LTD

Vehicle-mounted connector copper alloy strip and preparation method thereof

The invention relates to the technical field of copper alloy strips, and discloses a vehicle-mounted connector copper alloy strip which comprises the following components in percentage by mass: 0.04 to 0.1 weight percent of Y, 1.5 to 3.5 weight percent of Sn, 0.02 to 0.08 weight percent of P, 0.5 to 2.5 weight percent of carbon nanostructure X and the balance of copper and inevitable impurities, wherein the carbon nano structure X is a compound of a carbon nano tube and fullerene, and the mass ratio of the carbon nano tube to the fullerene is (2-4): 1; the invention also discloses a preparation method. According to the invention, through the comprehensive advantages in the aspects of conductivity and corrosion resistance, the electrical connection function can be stably and reliably realized in a vehicle-mounted connector, powerful hardware support is provided for the intelligent and electric development of an automobile, and the adaptability and safety of the automobile under different working conditions are enhanced; and the maintenance cost of the automobile is reduced, and the downtime caused by faults is shortened.
Owner:国工恒昌新材料(义乌)有限公司

Steel bar sleeve connection torque and displacement double-control intelligent monitoring vibration reminding device and using method thereof

The invention discloses a reinforcement sleeve connection torque and displacement double-control intelligent monitoring vibration reminding device and a using method thereof, and relates to the technical field of building construction. The problems that existing steel bar sleeve connection depends on artificial experience, and the connection quality is difficult to ensure are solved. The torque sensor and the displacement sensor are integrated on the wrench, the torque value and the steel bar insertion depth in the connecting process are monitored in real time, and therefore dual control over the connecting quality is achieved; comprehensively judging a connection state by utilizing a PID controller and combining a feedforward and feedback control mechanism; when the monitored torque value and displacement data reach preset values at the same time, an acousto-optic vibration prompt is given out through a vibration reminding device to remind an operator that connection is completed; according to the method, the connection precision and the construction efficiency are improved, manual judgment errors are reduced, the reliability of a building structure and the construction safety are ensured, powerful support is provided for follow-up quality tracing, and therefore the intelligent process of the building construction industry is further promoted.
Owner:CHINA THREE GORGES UNIV

Intelligent control all-in-one machine and battery production formation and component distribution equipment

This application relates to the field of battery formation and capacity testing equipment technology, and discloses an intelligent control integrated machine and battery production formation and capacity testing equipment. The intelligent control integrated machine includes: a chassis, a bus backplane, a main control board, a control board, a data acquisition board, a communication board, and a power supply board. The main control board, control board, data acquisition board, communication board, and power supply board are all detachably plugged into the chassis, and when plugged into the chassis, they are respectively plugged into the bus backplane. In this application, when the main control board, control board, data acquisition board, communication board, and power supply board are plugged into the chassis and connected to the bus backplane, the connection of each functional board can be quickly and easily realized, reducing the complex wiring and connection between devices, improving the stability and reliability of the system, and reducing the space occupied by the entire control equipment.
Owner:ZHUHAI TITANS NEW POWER ELECTRONICS CO LTD

Spraying member and rotary coating machine for coating products comprising such spraying member

The invention relates to a spraying component and a coating product rotary spraying machine comprising the spraying component. The invention relates to a spraying member (30) for a rotary coating machine (2) for coating products, which carries at least one weight (40) for mechanical locking on a drive shaft (16) of the rotary coating machine. The weight is movable radially with respect to a central axis (A30) of the bowl and in a centrifugal direction with respect to said central axis between an unlocked position, in which the weight does not block the mounting of the spray member (30) on the drive shaft (16) or does not block the dismounting of the spray member with respect to the drive shaft, and a locked position, in which the weight does not block the mounting of the spray member (30) on the drive shaft (16) or does not block the dismounting of the spray member with respect to the drive shaft. The weight blocks detachment of the bowl relative to the drive shaft.
Owner:EXEL INDUSTRIES

Double-frequency single-port intermodulation tester

The invention provides a dual-frequency single-port intermodulation tester, and the tester comprises an intermodulation control module which comprises an intermodulation controller, a first frequency source and a second frequency source, and the intermodulation controller controls the first frequency source and the second frequency source to generate two carrier signals with different frequencies through receiving a configuration instruction; and the multiplexer module comprises a plurality of power amplifier modules and a multiplexer, the plurality of power amplifier modules are used for amplifying the two paths of carrier signals, synthesizing the two paths of carrier signals through the multiplexer, outputting the synthesized two paths of carrier signals to a tested piece, and receiving and processing intermodulation products reflected back from the tested piece at the same time. According to the invention, the accuracy, the integration level and the field applicability of the intermodulation test are effectively improved.
Owner:CHENGDU LANRUI PRECISION INSTRUMENT EQUIPMENT CO LTD

Roll core clamping and overturning device

The utility model discloses a roll core clamping and turning device which comprises a rack and a rotary table arranged on the rack, a group of containing grooves used for containing roll cores are formed in the outer circumferential face of the rotary table, and a clamping assembly used for clamping the roll cores is arranged above the rotary table. The clamping assembly is driven by an unlocking assembly arranged below the turntable to clamp or release the roll core; the rack is further provided with an overturning assembly used for driving the clamping assembly to overturn, and the overturning assembly, the unlocking assembly and the clamping assembly are driven by the same driving source. The full-automatic turnover device has the advantages that the design is exquisite, full-automatic turnover is achieved, manual operation is not needed in the whole process, the working intensity is greatly reduced, the working efficiency is improved, in addition, unified mechanical operation is achieved through the device, uniformity can be guaranteed to the maximum extent, and the yield is improved.
Owner:SUZHOU HANNENG INTELLIGENT EQUIP CO LTD

Portable modular nitrogen making machine

The utility model provides a portable modularized nitrogen making machine. The portable modularized nitrogen making machine comprises a gas inlet seat and a gas outlet seat, wherein the gas inlet seat and the gas outlet seat are respectively provided with a gas inlet channel and a gas outlet channel; the air inlet end and the air outlet end of the adsorption module are respectively communicated with the air outlet end of the air inlet channel and the air inlet end of the air outlet channel; the first connecting piece is detachably arranged at the air inlet end of the air inlet channel in a sealing manner; the second connecting piece is detachably arranged at the air outlet end of the air outlet channel in a sealed mode. Pipeline connection among a compressed air pipeline, an air inlet channel and an air inlet control valve is achieved through a first input channel, a first output channel and a first control cavity which are integrally integrated in a first connecting piece. And the second input channel, the second output channel and the second control cavity which are integrally integrated in the second connecting piece realize pipeline connection among the nitrogen pipeline, the gas outlet channel and the gas outlet control valve, so that the number of pipe fittings required by the nitrogen making machine is greatly reduced, rapid installation of the gas pipeline of the nitrogen making machine is realized, the production efficiency is improved, and the production cost is reduced. And connection points of gas pipelines can be reduced, and the gas leakage risk is reduced.
Owner:FUJIAN YIPUSI IND CO LTD

Airborne tire pressure monitoring device and monitoring method

The invention relates to the technical field of tire pressure monitoring, in particular to an airborne tire pressure monitoring device and method. According to the scheme, the airborne tire pressure monitoring device is installed on the outer side of the air valve of the aircraft tire, the reading device is adopted to superpose the reading instruction on the alternating current, and the reading instruction and the alternating current are transmitted to the airborne tire pressure monitoring device at the same time in a single-coil wireless transmission mode; when aircraft tire pressure data and tire temperature data are acquired, multi-channel acquisition is realized. The reading equipment is provided with a plurality of channel signal measurement induction processing units for acquisition, so that the problems that the equipment cannot be mounted in the tire due to large size, and the fault risk is caused when a single-board card is used for measuring the tire pressure are effectively solved, the reliability and the data accuracy are improved, and the equipment is convenient to maintain and replace.
Owner:SHANGHAI AIRCRAFT DESIGN & RES INST COMML AIRCRAFT OF CHINA

A linear scalability cluster construction system and method

The present invention provides a system and method for building a linear scalability cluster, the building system comprising: dividing into business units and global units according to the data characteristics of the service during deployment; dividing into logical units and physical units from the deployment architecture. Data splitting according to the business dimension reduces the connection bottleneck and capacity bottleneck of a single database, and reduces the fault isolation granularity when the service or database fails. Reduce the service and database load pressure of a single computer room, reduce the fault isolation granularity, solve the complexity of capacity estimation and expansion, reduce the cost of fault switching, and have extremely high linear scalability.
Owner:DIGITAL CHINA FINANCIAL SOFTWARE LTD

3D waveguide type multi-core optical fiber link monitor

The invention discloses a 3D waveguide type multi-core optical fiber link monitor which comprises an optical chip platform with n layers of stacked waveguide structures and a photoelectric detector, n is larger than or equal to 2, and the number n of waveguide layers of the optical chip platform is equal to the number of layers of connected multi-core optical fibers. The cross section distribution of waveguides in the optical chip platform and the cross section distribution of fiber cores of the multi-core optical fiber are the same and are in one-to-one correspondence; a waveguide channel corresponding to each fiber core of the multi-core optical fiber in the optical chip platform comprises an optical fiber signal coupling fan-out module, an optical signal beam splitting module, an optical signal monitoring module and a multi-core optical fiber signal coupling fan-in module which are connected in sequence; after an optical signal of a multi-core optical fiber transmitting end is coupled by the fan-out module, a small part of the signal is separated by the beam splitting module through a waveguide coupling effect and is used for monitoring, and most of the signal is transmitted back to a transmission link through the fan-in module; and the monitoring module realizes real-time detection through a photoelectric detector. According to the invention, no extra optical fiber fan-in / fan-out module is needed, the insertion loss is low, and the device is not sensitive to polarization.
Owner:WESTLAKE UNIV

A semi-automatic tinning machine

This utility model discloses a semi-automatic soldering machine, including a frame with a soldering furnace fixedly mounted on the top surface of the frame. A waste solder cutting mechanism is located in front of the soldering furnace, comprising a waste solder furnace, a cutting assembly located above the waste solder furnace, and an opening / closing assembly for driving the cutting assembly to open and close. Above the soldering furnace are clamps for holding wires and a moving mechanism for driving the clamps to move vertically and horizontally. This significantly improves efficiency and automation. By setting up a waste solder cutting mechanism including a waste solder furnace, a cutting assembly, and an opening / closing assembly, automated cutting of waste solder is achieved. This completely changes the traditional method of relying on manual operation by workers to cut excess solder from the ends of wires, greatly shortening the single operation time, significantly improving overall production efficiency, and solving the problem of low work efficiency in the past.
Owner:DONGGUAN WANGGAO IND CO LTD

Distribution network automation feeder terminal switching method, system and equipment with fault self-diagnosis function and medium

PendingCN122001094AReduce stepsSolve the problem of inconsistent standardsCircuit arrangementsFeeder lineSelf adaptive
The invention discloses a distribution network automation feeder terminal switching method, system and device with a fault self-diagnosis function and a medium. The method comprises the steps that an original electrical signal is collected through an input interface unit; intermediate information data are obtained through the signal processing module; electrical characteristics are collected through a main control module to obtain an interface type identification result, adaptive adjustment is carried out on the intermediate information data, and an adaptive signal is obtained and output; and acquiring and analyzing the digital signal to obtain device operation state information, performing fault diagnosis in combination with the interface type identification result, and triggering an alarm when abnormality is diagnosed. Intelligent conversion is achieved by integrating multiple interfaces, the problem that equipment interfaces of multiple manufacturers are incompatible is solved, the tedious operation of equipping multiple adapters on site is avoided, the accuracy and stability of cross-interface signal transmission are guaranteed, and the operation reliability, operation and maintenance convenience and system overall safety of the device in a complex environment are improved.
Owner:CHANGJIANG POWER SUPPLY BUREAU OF HAINAN POWER GRID CO LTD

Battery pack box structure, battery pack and vehicle

The utility model provides a battery pack box body structure, a battery pack and a vehicle, the battery pack box body structure comprises a main box body and an inner box body, the inner box body is arranged in the main box body, and the inner box body comprises a mounting space for mounting a battery module; a first cooling channel is arranged in the side wall of at least one side of the inner box body. According to the battery pack box body structure provided by the embodiment of the utility model, the inner box body is arranged in the main box body and comprises the mounting space for mounting the battery module, and the first cooling channel is arranged in the side wall of at least one side of the inner box body, so that the side wall of the inner box body is cooled through the cooling medium in the first cooling channel; according to the battery pack box body structure, the inner box body is provided with the mounting space, so that the side surface of the battery module in the mounting space of the inner box body is cooled, the area for cooling the battery module in the battery pack box body structure is increased, the cooling and heat dissipation efficiency of the battery module is improved, and the risk of thermal runaway caused by over-high temperature of the battery module is reduced.
Owner:EVE ENERGY CO LTD

QSFP active optical cable assembly

The utility model relates to the technical field of photoelectric communication, in particular to a QSFP (Quad Small Form-factor Pluggable) active optical cable assembly, which comprises a shell, a first mounting block and a second mounting block are symmetrically arranged on two sides of the shell respectively, one side of each of the first mounting block and the second mounting block is movably connected with a cap, a connector is movably connected in the first mounting block, and the connector is movably connected in the second mounting block. A QSFP connector is fixedly connected to one side of the connector, a limiting block is fixedly connected to the side, close to the connector, in the first mounting block, a silica gel pad is arranged in the first mounting block between the limiting block and the cap, and a pressing mechanism is rotationally connected to the interior of the shell; according to the device, the movement and swing of the connector, the wire core, the QSFP connector and the wire are effectively limited through the pressing mechanism, so that the stability of the active optical cable is improved, signal interference or connection faults possibly caused by looseness or swing are reduced, the possibility of faults is reduced, and the service life of equipment is prolonged.
Owner:深圳汇菁科技有限公司

Integrated agricultural product pesticide residue crushing and extraction device

ActiveCN224404431Ureduce connectivityReduce transfer stepsAgricultural sciencePesticide residue
The utility model relates to the field of pesticide residue treatment, specifically is a kind of integrated agricultural product pesticide residue crushing extraction equipment, including extraction cylinder, the inside of extraction cylinder is sequentially opened with crushing chamber, control chamber and stirring chamber from top to bottom, heating unit is fixedly arranged on extraction cylinder and is matched with stirring chamber, the side portion of extraction cylinder is provided with centrifuge, and the bottom end of stirring chamber is communicated with centrifuge;The integrated agricultural product pesticide residue crushing extraction equipment of the utility model integrates multiple functions such as crushing, stirring, heating, centrifugal separation in one, realizes the full-process automation operation from agricultural product feed to residue extraction, separation, reduces the connection and transmission steps between multiple devices in traditional equipment, improves work efficiency, saves space.
Owner:安阳市产品质量检验检测中心

High-efficiency intelligent wind-solar-diesel storage micro power station

The utility model provides a high-efficiency intelligent wind-light-diesel-storage micro-power station, which relates to the field of wind-light-diesel-storage micro-grid power stations and comprises a box body used for providing support, a diesel generator cabin used for installing a diesel generator, a high-voltage power distribution cabin used for installing power distribution equipment and an energy storage cabin used for installing a battery. An inner cavity of the diesel generator cabin is fixedly connected with a variable-frequency direct-current diesel generator set used for power generation, and a hybrid inverter used for AC / DC conversion and a wind driven generator controller used for controlling wind power generation are installed in an inner cavity of the high-voltage power distribution cabin. According to the utility model, the EMS controller is adopted to carry out energy scheduling in a unified manner, is respectively connected with the hybrid inverter, the wind driven generator controller and the three-phase AC ammeter through RS485, and is respectively connected with the frequency conversion DC diesel generator set and the BMS of the energy storage battery through CAN2.0B, so that a unified control architecture is formed, the control complexity is reduced, and the control precision is improved at the same time.
Owner:NEXANT (SUZHOU) NEW ENERGY TECH CO LTD

A synchronous motor for an engineering vehicle

ActiveCN224367683Usave spaceConvenient for unified layout and installationAssociation with control/drive circuitsSynchronous motors
The utility model relates to motor technical field discloses a synchronous motor for engineering vehicle, including main part assembly, including motor body, the motor body bottom is provided with base, the motor body top is provided with control module, the motor body top is provided with the protective cover, adjustment assembly, set up in control module, including adjustment piece, the adjustment piece includes support cover, support cover with control module bottom fixed, the support cover below is provided with the clamping plate, one side of clamping plate is fixed with sliding block. Through install control module in the motor top and with the protective cover protection, can save space, be convenient for unified layout installation, reduce the connecting circuit and the related failure risk, and then reduce the protection difficulty, be favorable to guarantee both matching coordination, improve overall reliability.
Owner:NINGBO XIANLONG AUTOMOBILE FITTINGS CO LTD

Integrated double independent air duct refrigeration system

The utility model provides a kind of integrated double independent air duct refrigeration system, including box, evaporator, condenser;The evaporator and condenser are respectively installed in the two sides of box, the box on the outside of evaporator is opened outdoor air inlet, outside air enters the air duct where evaporator by outdoor air inlet, air duct is equipped with air supply fan, air supply fan pushes air to flow through evaporator;Air is sent into refrigeration area after heat exchange with evaporator;Another side of box is equipped with corresponding outdoor air inlet close to condenser, indoor air outlet is equipped opposite outdoor air inlet, outdoor air enters the air duct where condenser by outdoor air inlet, air duct is configured and installs exhaust fan, exhaust fan will wind flow flow through condenser, condenser releases heat, exhaust fan will absorb heat after hot air discharge outdoor.This new double independent air duct design avoids hot and cold air mixing, evaporator and condenser can efficiently carry out heat exchange in relatively independent airflow environment.
Owner:GUANGDONG ZHUXIANG INTELLIGENT TECHNOLOGY CO LTD

Insulated pull rod assembly and vacuum circuit breaker

ActiveCN121617854BExtended service lifeReduce the impact of collision
The application relates to an insulating pull rod assembly and a vacuum circuit breaker. The insulating pull rod assembly comprises: an elastic buffer structure, which comprises a limiting substructure, at least two elastic deformation insulating strips and a first connecting part; the limiting substructure comprises an upper limiting table and a lower limiting column, the lower limiting column comprises a first limiting end connected with the upper limiting table and a second limiting end away from the first limiting end; the at least two elastic deformation insulating strips are coaxially distributed around the lower limiting column, one end of the elastic deformation insulating strip is fixedly connected with the upper limiting table, and the other end of the elastic deformation insulating strip is fixedly connected with the first connecting part; an insulating pull rod, the insulating pull rod and a moving conducting rod of the vacuum circuit breaker are fixedly connected on the two sides of the elastic buffer structure, the insulating pull rod is connected with the first connecting part, and the upper limiting table is connected with the moving conducting rod of the vacuum circuit breaker. The application can reduce the moving quality of the vacuum circuit breaker.
Owner:YUNNAN POWER GRID CO LTD +1

Positioning labeling mechanism for plastic packaging bag labeling machine

The utility model discloses a positioning labeling mechanism for a plastic packaging bag labeling machine, and relates to the technical field of plastic packaging bag production, the positioning labeling mechanism comprises a support plate and a roller body, the top of the roller body is connected with a baffle block, the bottom of the baffle block is connected with a first non-slip mat, one side of the baffle block is connected with a baffle strip, and the inner ring of the baffle strip is connected with a second non-slip mat; a connecting piece is fixed to one side of the barrier strip, a plurality of clamping grooves are formed in the top of the connecting piece, a spring is connected into the stop block, and a clamping block is connected to the top of the spring. Through the arrangement of the stop block, the barrier strip, the connecting piece, the clamping groove, the clamping block and the spring, when the positions of the stop block and the barrier strip need to be adjusted, the clamping block is pressed down to displace the clamping block to compress the spring, and then the diameter of the barrier strip is increased by bending the barrier strip; compared with the mode that the wrench is held twice, the wrench is inserted into the bolt to rotate several circles, the check ring is operated and the wrench is taken out, operation is convenient and fast, and tools are not needed.
Owner:GUANGDONG DEFENG MATERIAL CO LTD

Multi-frequency heat pump through shaft self-water-supply structure

The utility model discloses a multi-frequency heat pump through shaft self-water-feeding structure, which belongs to the field of multi-frequency heat pumps and comprises a heat pump body, an upper drain plate, a rotor outer cover and an upper cover plate are sequentially and fixedly mounted at the top of a shell, an upper valve plate is fixedly mounted at the top of the upper cover plate, and a lower valve plate is fixedly mounted at the bottom of the shell. An upper valve plate is fixedly installed in the shell, a water outlet tee joint is fixedly installed at the top of the upper valve plate, a lower drainage plate and a lower base are sequentially and fixedly installed at the bottom of the shell, and a water inlet connector is fixedly installed on one side of the lower base. The impeller rotating at a high speed actively pumps water upwards through the overflow groove, the first communication opening and the water inlet through hole, the efficiency that the water climbs upwards after entering the impeller cavity is improved, the water can penetrate through the interior of the shell more easily and reach the energy adding rotor, the contact efficiency of the water and the energy adding rotor is improved, and the temperature rising efficiency of the water is improved.
Owner:HE BEI HUAN YI XIN NENG YUAN KE JI YOU XIAN GONG SI

Pump recoverer and preparation method thereof

The invention provides a pumping recoverer and a preparation method thereof. According to the pumping recoverer, a plurality of pumping arms located in a second sub-part, an input signal optical fiber in the second sub-part and the second sub-part are prepared through a fused biconical taper process to obtain an optical fiber taper part; more pumping arms enable the residual pumping light to enter the output signal optical fiber from more directions and positions, so that the gain optical fiber can absorb the residual pumping light again, the overall pumping efficiency is improved, the residual pumping light is effectively utilized, and meanwhile, the optical fiber taper part is welded with the output signal optical fiber, so that the structure of the pumping recoverer is more compact, and the cost is reduced. And the number of connecting parts and interfaces between the optical fibers is reduced, so that low-loss transmission of optical signals is realized.
Owner:WUHAN CHANGJIN PHOTONICS TECHNOLOGY CO LTD

Novel ceiling fan lamp

The utility model belongs to the technical field of lighting equipment, and particularly relates to a novel ceiling fan lamp. The lamp comprises a lamp body, a lamp panel and a suspender, a cavity is formed in the lamp body, a controller and a light source driver are arranged in the cavity, a hanging rod is connected to the top of the lamp body, the lamp panel and the power source are integrally designed, the power source is integrated in the lamp panel, a circuit board is fixedly installed on the lamp panel, and a light source and the light source driver are arranged on the circuit board. The hanging rod is connected with the lamp panel through threads. A traditional novel ceiling fan lamp is improved, a ceiling lamp power source is integrated at the bottom of a lamp panel, the lamp panel and the power source are combined into a whole, a lamp source and a light source drive are jointly arranged on a circuit board, a controller is fixed in a lamp body, external connection and complexity are reduced, a hanging rod is made of an integrated sheet metal part through a stamping plate, and the assembling steps and the number of parts are reduced.
Owner:ZHONGSHAN WANJU LIGHTING TECH CO LTD

Thermal compensation device and method for electric spindle of machine tool and numerical control machine tool

The invention provides a thermal compensation device and method for an electric spindle of a machine tool and a numerical control machine tool, the thermal compensation device comprises a displacement detection device and a control device, a detection part of the displacement detection device is arranged on a tool handle connected with the spindle, and the detection part of the displacement detection device and a detection surface of the tool handle are arranged at an interval in the vertical direction; the detection part of the displacement detection device is opposite to and parallel to the detection surface of the cutter handle; the displacement detection device is used for detecting the thermal displacement of the main shaft in the vertical direction by detecting the distance change between the detection part of the displacement detection device and the detection surface of the cutter handle; and the control device is connected with the displacement detection device, and the control device is used for acquiring data detected by the displacement detection device and adaptively adjusting the position of the main shaft in the vertical direction according to the data detected by the displacement detection device. The thermal compensation device of the machine tool motorized spindle can effectively solve the technical problems that in the prior art, a thermal compensation device of a machine tool motorized spindle is complex in structure and poor in anti-interference capacity.
Owner:GREE ELECTRIC APPLIANCE INC OF ZHUHAI

A small-radius turn open TBM tunneling machine and method

ActiveCN122565477BReal-time coupling matchingExtended service life
The application discloses a small-turning-radius open TBM tunneling machine and method, and relates to the technical field of TBM tunneling machines.The tunneling machine comprises a pushing oil cylinder, a load detection mechanism corresponding to the oil cylinder, a single-cylinder independent speed regulation mechanism, and a control mechanism with a controller.The load detection mechanism obtains the real-time load and stroke of the corresponding oil cylinder, and the speed regulation mechanism independently adjusts the speed and stroke of the corresponding oil cylinder.The controller receives the load, stroke and host posture data, combines preset tunnel design parameters, and solves the optimal dynamic stroke difference in real time, and then controls each speed regulation mechanism to independently control each oil cylinder in a closed loop, forming a complete closed loop of "perception - decision - execution - feedback".The application realizes real-time coupling and matching of the dynamic change of the surrounding rock load and the stroke difference of the oil cylinder, ensures that the host tunneling direction is always along the design axis, and greatly improves the tunneling stability and posture control precision under the small-turning-radius variable-gradient working condition.
Owner:CHINA RAILWAY TUNNEL GROUP CO LTD +3