242results about How to "Normal working condition" patented technology

The invention provides a power management circuit, method and system. A power-switching circuit of the power management circuit comprises a first output end and a second output end, the first output end is used for supplying power to a microcontroller, a CAN transceiver and a peripheral circuit, and the second output end provides awaking voltage for the CAN transceiver; when the power-switching circuit, the microcontroller and the CAN transceiver are in a sleep mode, that is, a vehicle control unit is not required to be supplied with power, the first output end outputs a low level, so that the static power consumption is reduced, meanwhile, the second output end outputs constant power to ensure the CAN transceiver to awake the microcontroller as required, and the vehicle control unit recovers the normal working state. When the peripheral circuit is not in the sleep mode, the first output end can output a high level to supply power to the peripheral circuit according to the actual condition. In conclusion, the power management circuit can perform power management on the vehicle control unit according to the actual condition, and the static power consumption is controlled at the lowest level.

The invention provides an in-polluted-site heat-intensifying vapor extracting and repairing integrated device and an application method. The integrated device comprises a high pressure fan, a gas-liquid separation tank, an active carbon absorption tower, an automatic control cabinet, a heating electrode, a flow meter, a vacuum gage, a temperature sensor, a humidometer and an organic pollution gas detector; an extracting pipeline is connected with an extracting well, and the heating electrode is embedded in a polluted area. The specific application method comprises the steps as follows: starting the heating electrode to raise the temperature of the soil in the site and promote the desorption of the pollutant in the soil, then starting the high pressure fan, forming a negative pressure in the pipeline to generate flowing of gas from the extracting well to the outside, taking away the pollutant in the soil from the soil along with the flowing of the gas, and enabling the active carbon absorption tower to absorb the gas pollutant to fulfill the purpose of repairing the polluted site. The in-polluted-site heat-intensifying vapor extracting and repairing integrated device and the application method are used for repairing the soil in the organic polluted site, so that not only the pollutant removal rate is improved, but also the influence of the low temperature condition on the vapor extracting technique is further reduced, the effective repairing working time in winter is prolonged, and the purpose of efficiently treating the polluted site is fulfilled.

Provided are a machine type communications (MTC) terminal trigger control method, device, and system. The method comprises: when an MTC terminal in a connected state does not perform communication within a set period of time, sending power-saving instruction information to a network node, the power-saving instruction information being used to instruct the network node to configure paging period control information for the MTC terminal (101); the MTC terminal obtaining the paging period control information configured by the network node, and entering a power-saving state (102); the MTC terminal in a power-saving state periodically monitoring a paging channel according to the obtained paging period control information, and entering a connected state upon monitoring a paging message (103). The present invention can enable the MTC terminal to effectively save power when performing no communication, and enter a normal working state when required to perform communication.

The invention discloses a scheduling method for tracking a photovoltaic planned output by using a battery storage energy and a hydrogen storage energy. The scheduling method comprises the steps of making an output plan of a next day based on a short-term photovoltaic prediction power, and making different day-ahead scheduling schemes according to magnitudes and fluctuation violent degrees of prediction errors of photovoltaic powers in a sunny day and a non-sunny day; correcting a day-ahead photovoltaic planned output by using an ultrashort-term photovoltaic prediction power; and then, selecting an appropriate real-time scheduling scheme according to a state of charge of a storage battery, and calculating an actual output of a photovoltaic power generation system as well as input powers ofthe storage battery and an electrolytic bath to output to a central control unit of the photovoltaic power generation system, thereby performing real-time scheduling on each power generation electricmodule in the system. The impact on the power system is reduced, the frequency modulation pressures of water and thermal generation units are alleviated, an energy storage battery is guaranteed to work in a low-load state beneficial to prolonging the service life, the frequent change of the energy storage battery due to premature failure is prevented, and the total cost in a whole life cycle of the system is reduced.

The invention discloses a vehicle warning device capable of automatically detecting a highway guardrail position. The vehicle warning device comprises a warning board and a warning board installation base, wherein the warning board installation base is provided with a power supply module, and the vehicle warning device also comprises a distance measurement module capable of measuring a distance from the warning board installation base to the highway guardrail position, and the distance measurement module is electrically connected with the power supply module. The warning board is high in arrangement speed, the intelligence degree is high, the manual intervention is reduced, the moving route is precise, the vehicle warning device can be well adaptive to the unfavorable weather condition and curve road conditions, the windproof performance is good, the warning board is flexible and diversified in transport way and is adaptive to different road conditions and weather situations, the warning board can be rapidly moved to a designated place, the warning board can be automatically restored after rolling over, and the cost is low.

The electronic intelligent controller of the throttle, features for the sensor installed on the decelerator which connected with the throttle, the sensor collects the position signal of the throttle, through linear isolated circuit and CAN bus isolated circuit controlld by CAN bus, the signal enters the central controller, the central controller calculate the output PWM signal by input CAN signal or accelerate pedal signal, through high speed isolated driving circuit, the signal to sent to the H bridge circuit, which controls the driving motor running, the central controller can receive the CAN signal from other controller as well as directly from the accelerate pedal signal to achieve the accurate control.

The invention provides a base station energy consumption optimization method based on a decision tree. The base station energy consumption optimization method comprises the following steps: obtaining base station energy consumption parameter information, and monitoring the working condition of the base station in a real-time manner according to the base station energy consumption parameter information, wherein the base station energy consumption parameter information comprises a base station type and electricity consumption of the base station; calculating average electricity consumption, maximum electricity consumption and minimum electricity consumption of each base station per unit time according to the base station energy consumption parameter information; using the average electricity consumption and actual electricity consumption as points, and using the distance between the two points in the space to measure the electricity consumption approximation ratio of each base station, wherein when the electricity consumption approximation ratio of one base station exceeds an approximation ratio standard threshold of similar base stations, said base station is an abnormal base station; and setting an optimization measure and optimization measure weight factors, creating the decision tree accordingly, and using the decision tree to evaluate the abnormal base station and output an optimization measure evaluation report to guide a user to optimize the base station according to the optimization measure evaluation report. The decision tree is used for optimizing the base station according to a detection result, and the data collection is comprehensive.

The invention discloses an engine anhydrous cooling liquid and a preparation method thereof, wherein the engine anhydrous cooling liquid comprises the following raw materials by the weight percentage:60-70% of propylene glycol, 25-30% of ethylene glycol, 3-4% of 1,2-aminoazophenylene, 1-2% of sodium nitrate, 2-3% of glycerol, 1-2% of triethanolamine, 0.5-1.5% of sodium hydroxide, and 0.1-1% of apigment. The anhydrous cooling liquid has the freezing point lower than -52 DEG C and the boiling point more than 190 DEG C and has a large thermal safe space, so with the use of the product, the anhydrous cooling liquid can maintain a good state for operation, adequate power is maintained, noise is reduced, a water tank does not produce 'boiling', and cylinder score is not generated. With use ofthe anhydrous cooling liquid, zero corrosion can be achieved, no water rust is generated, cleaning and repair are not needed forever, and boiling, cylinder score, water tank blocking, water rust, water scale, corrosion and cavitation corrosion, engine fatigue, nausea, explosive vibration, precombustion, large noise, unstable idle speed, cylinder pressure reduction, insufficient power, oil consumption increase and large exhaust gas emission smoke and other phenomena are thoroughly eliminated.

A self-locking sliding rail comprises an inner sliding rail, an outer sliding rail and a middle sliding rail, wherein the middle sliding rail is arranged on the outer sliding rail, and the inner sliding rail is arranged on the middle sliding rail. The inner sliding rail is fixedly connected with a shifting block, the outer sliding rail is fixedly connected with a self-locking mechanism, and the self-locking mechanism comprises a self-locking seat. The self-locking seat comprises a self-locking arm, a spring chute is arranged at the bottom of the self-locking arm and extends towards the outside of the self-locking arm in the pushing-back direction of the self-locking sliding rail to form a fixing arm, a spring is arranged in the spring chute, one end of the spring is connected with one end of the fixing arm away from the self-locking arm, and the other end of the spring is connected with a sliding block. A rotating block and the sliding block are respectively in sliding connection with a pair of upper sliding ways and a pair of lower sliding ways. The rotating block is in rotating connection with the upper end of the sliding block, two limiting faces for controlling a rotating block rotation range are arranged on the sliding block and respectively located on two sides of the rotation center of the rotating block, a contact corner is arranged on the shifting block, and a clamping groove for accommodating the contact corner is arranged above the rotating block. The self-locking sliding rail can be automatically locked in a pushing-back state, and automatic slipping out of the sliding rail is avoided.

The invention relates to a squeezing device, in particular to an orange juicing device for fruit deep processing. The orange juicing device is capable of increasing the juicing rate, separating juicing residues and easy and reliable to operate. According to the technical scheme, the orange juicing device for fruit deep processing comprises support legs, a connecting plate, a juicing mechanism, a feeding hopper, a processing pipe, a fixing rod, a separating mechanism and the like; and the connecting plate is arranged on the tops of the left support leg and the right support leg, the juicing mechanism is mounted on the connecting plate, the feeding hopper is arranged in the middle of the left support leg, and the fixing rod is horizontally connected to the lower position of the middle of theleft support leg. According to the orange juicing device, through the mutual cooperation of the juicing mechanism and the separating mechanism, oranges in the feeding hopper are juiced, and meanwhileby using the optimization of the cutting mechanism and the filtering mechanism, the effects of increasing the juicing rate, separating juicing residues and being easy and reliable to operate are realized.

The invention relates to an air heat pump heating cycle system, belonging to the heating technique, which can be used in water heater and air conditioner. It comprises a compressor (1), a heat exchanger (2), a throttle device (3), an evaporator (4), a liquid storage device (5), the first electromagnetic valve (7), the first second electromagnetic valve (8), and a auxiliary evaporator (9) between the evaporator (4) and the liquid storage device (5). The invention has the defrosting function without stopping the compressor and it can effectively avoid the damage on the device and the impact on the electric network caused by repeatedly switching the compressor. And since it adsorbs the heat from the air to defrost, it can avoid the time for balancing the pressure to improve its efficiency.

The invention discloses a method for detecting interference in a long-term evolution (LTE) system and equipment. The method comprises the following steps that: if a current community is in an uplink time slot, no user has accesses into the community and signals can be stilled received, the power of each RE in the packet receive buffers (PRBs) of a plurality of continuous uplink sub-frames is detected, wherein one PRB comprises a plurality of symbols in a time domain, and each symbol comprises a plurality of REs in a frequency domain; and if the power intensity of the REs is higher than the set intensity periodically on one symbol, the interference of the current community by downlink transmission signals of an adjacent community is determined. Consequently, according to the invention, the sources and the causes of the outside interference an be quickly and accurately positioned when a base station is interfered by the outside environment, so that the interference detection efficiency is improved.

The invention discloses an overload protecting device for a transmission element of a cutting part of a coal mining machine. The device comprises a cutting motor (1), a frictional torque limiter (5) for performing overload protecting, and a cutting speed reducer (9), wherein an input shaft (4) of the frictional torque limiter (5) is connected to a motor shaft (2) of the cutting motor (1) through a coupling I (3), and an output shaft (6) of the frictional torque limiter (5) is connected to a high-speed shaft (8) in the cutting speed reducer (9) through a coupling II (7). According to the overload protecting device, the frictional torque limiter is of a wet type multi-frictional-sheet structure; if the cutting part of the coal mining machine is subjected to overload, the frictional sheets in the frictional torque limiter can slip to achieve overload protection; in addition, after the overload, the frictional torque limiter can be automatically recovered into the normal working state. The overload protecting device has the advantages of being simple in structure, reliable to work, large in transmission torque, easy to maintain, easy to manufacture, and low in cost, and preventing the transmission element of the cutting part from torsional damage during the overload.

The invention provides a decorative part assembly, a shell assembly and electronic equipment. The decorative part assembly comprises a decorative part, a first adhesive layer, a cover plate and a waterproof breathable film, wherein the decorative part comprises a base and a decorative ring; the base comprises a first surface and a second surface which are arranged back to back; the decorative ringis arranged on the periphery of the first surface in a protruding mode; a breathable space is formed in the base and penetrates through the first surface to the second surface; the breathable space is located on the inner side of the decorative ring; the first adhesive layer is located on the inner side of the decorative ring and fixedly connected to the first surface; the first adhesive layer forms a first passage communicating with the breathable space; the cover plate is fixedly connected to the surface, deviating from the base, of the first adhesive layer; a first gap is formed between the peripheral side face of the cover plate and the inner side face of the decorative ring; the first gap communicates with the breathable space through the first passage; and the waterproof breathablefilm is fixed to the base and covers the breathable space. When the shell assembly with the decorative part assembly is applied to the electronic equipment, the electronic equipment can quickly balance internal and external air pressures.

The invention discloses a GOA gate drive circuit comprising a plurality of GOA drive units arranged in cascade connection. The GOA drive unit arranged at each level consists of a pull-up control module, a pull-up level transmission module, a first pull-down module, a pull-down maintenance module, and a second pull-down module; the second pull-down module is coupled between a gate control signal and a reference low-level signal; and the second pull-down module controlled by a pull-down signal is used for pulling down a gate control signal to the reference low-level signal, wherein the pull-down signal is provided by an independent control chip. In addition, the invention also discloses a liquid crystal display device including the GOA gate drive circuit.

The invention discloses a bias circuit for a radio-frequency power amplifier. The bias circuit comprises a differential amplifier composed of two audions; the differential amplifier is that the bases of the two audions are used as differential input ends and the collector of one audion is used as a single output end; the bias circuit further comprises an active driving tube; the base of the active driving tube receives voltage of the single output end of the differential amplifier as input; the emitter of the active driving tube provides base bias current for a power tube; two voltage dividing branches respectively provide base voltage for the two audions forming the differential amplifier; and furthermore, when the temperature is changed, the change directions of the base voltage of the two audions forming the differential amplifier are opposite. By means of the bias circuit disclosed by the invention, the sensitivity to temperature change can be obviously reduced; the linearity of the radio-frequency power amplifier is improved; and thus, the radio-frequency power amplifier can keep a normal working state in a relatively severe working condition and environment.

The invention relates to a device for clearing obstacles in an inclination measuring pipe, consisting of three parts, namely an obstacle taking device (2), a connecting rod (3) and a handle (4), wherein the obstacle taking device (2) comprises a plain steel bar (5), a filter net (6), an iron cylinder (7), a control bolt (8) and a hinge door (9). When the device meets the obstacles in descending, the obstacles lead the hinge door (9) to be opened inward, the obstacles enter the iron cylinder (7), and the filter net (6) plays a role of filtering and leads particles with the particle diameter of larger than 1mm to be unable to pass; and the device is taken out, the control bolt (8) is loosened to lead the hinge door (9) to be opened outward, and the obstacles in the iron cylinder (7) are poured out. The device has simple structure, easy operation, good practical effect, low cost and is applicable to the inclination measuring pipe blocked by the obstacles.

The invention provides a cleaning prompt method for a steam generation device, a cleaning prompt system for the steam generation device, and a garment steamer. The cleaning prompt method for the steam generation device includes the following steps: acquiring the historical work time stored in the garment steamer and starting to time to acquire the current work time of the garment steamer when the garment steamer is enabled; determining if the accumulative work time of the garment steamer is greater than or equal to the preset cleaning time of the steam generation device or not, and prompting a user to clean the steam generation device if so, wherein the accumulative work time is equal to the sum of the historical work time and the current work time. According to the technical scheme, the method and the system can timely and accurately prompt the user to clean the steam generation device, and thereby prolonging the service life of the steam generation device.

The invention discloses a passive optical network and a low-power-consumption control method thereof and an optical network unit. The low-power-consumption control method comprises the following steps that: an OLT (Optical Line Terminator) determines to send a low-power-consumption instruction to the ONU according to a preestablished strategy after an ONU (optical netunit) enters a low-power-consumption mode; and after receiving the low-power-consumption instruction, ONU system equipment of the ONU controls an ONU optical module of the ONU to enter the low-power-consumption mode. Because the OLT indicates to the ONU to enter the low-power-consumption mode according to the preestablished strategy, the OLT can master the situation of the ONU in the whole passive optical network and avoids confusion; and after the ONU optical module enters the low-power-consumption mode, the purposes of saving power consumption and saving energy sources can be achieved.

The invention discloses a vertical array system suitable for acoustics hydrographic survey in a high latitude extremely cold sea area. The vertical array system comprises a plurality of hydrophones, which are serially connected through a high strength cable. Each hydrophone comprises a high sensitivity hydrophone head, which is used to receive marine environmental noises and underwater acoustic communication signals; a signal collecting and conditioning circuit, which is used to collect and condition the high sensitivity hydrophone head; a sensor module, which is used to collect the information of pressure, temperature, dip angle, acceleration speed, and azimuth and comprises a pressure sensor, a dip angle sensor, an acceleration speed sensor, a temperature sensor, and an azimuth sensor; a main controller, which is used to control the data transmission between each module; and a high precision real time clock, which is used to realize crude precision synchronization of all hydrophone nodes. The provided system is not limited by the cable, the electrical equipment in the vertical array can be used in an extremely cold environment, and thus the whole system can be used in deep sea acoustic measurement of seas of North Pole and seas next to North Pole.

The invention belongs to the technical field of in-situ leaching uranium mining and particularly relates to a replaceable filter for in-situ leaching uranium mining drilling to solve the cleaning and replacing problems of a well completion filter and a latter filter in an in-situ leaching drilling construction process. The replaceable filter is characterized by comprising a righting head, an upper sand-closed retaining rubber drum, an upper adjustment pipe hoop, a lower sand-closed retaining rubber drum, a lower adjustment pipe hoop, a connecting pipe, an upper reducing pipe hoop, a filtering pipe, a filter annular skeleton, a lower reducing pipe hoop, a suspension clamp ring, a sand setting pipe and an anchoring head. The replaceable filter has the characteristic of convenient replacement, and the filter can be rapidly and conveniently pulled out from a drilling hole to be cleaned or repaired or directly replaced when needing to be cleaned or failing so that the in-situ leaching drilling hole can keep a normal working state at any time. The replaceable filter is already applied to scientific research and production work of the Tianshan Uranium Industry Company, the failure rate of the in-situ leaching drilling hole is greatly decreased, and carrying-out of in-situ leaching uranium mining work is facilitated.

A method for regenerating aluminum electrolysis bath carbon waste into alternative fire coal comprises the following steps that (1) conducting pelletization and detoxication, wherein the aluminum electrolysis bath carbon waste is crushed, a detoxicating agent solution is atomized and sprayed, and then pelletized detoxicated materials are obtained; (2) conducting activation, wherein a catalytic oxidant is added, homogenizing and modifying are conducted, and then the alternative fire coal is obtained; or, the catalytic oxidant and lime are added, water is added, stirring is conducted or rolling mixing is conducted, oxidation alkaline removal are conducted, filtering or filtering and washing are conducted, drying is conducted, and then the alternative fire coal is obtained; or, the catalytic oxidant, lime and sodium hydroxide are added, water is added, stirring is conducted or rolling mixing is conducted, oxidation aluminum removal and alkaline removal are conducted, filtering or filtering and washing are conducted, drying is conducted, and then the alternative fire coal is obtained; or, supercritical or liquid-state carbon dioxide is adopted for leaching processing, the catalytic oxidant is added to carbon dry powder for homogenizing and modifying, and then the alternative fire coal is obtained. The calorific value of the regenerated alternative fire coal is equal to that of semibituminous coal and anthracite and is about 5000 kcal / kg on average, and the regenerated alternative fire coal can be used as alternative fire coal; and the method is simple in technology, low in energy consumption and cost and suitable for industrialized production.

The invention discloses an automatically- released hoist ring and a combined loading and unloading frame with the same. The automatically-released hoist ring comprises a body, the upper end of the body is hinged to a connecting chain and a connecting ring, the lower end of the body is hinged to a snap ring, a two-stepped mounting hole is arranged in the body, an elastic device is arranged in the mounting hole and comprises a spring and a pull rod, the upper end of the pull rod penetrates through the spring and extends out of the body from the upper end of the mounting hole, and a nut lifting ring is arranged at a position, extending out of the body, of the upper end of the pull rod. By the aid of the automatically-released hoist ring, a flexible container and a lifting device are manually operated only at a lifting end, and unloading is automatically performed at an unloading end without manual operation. Compared with the prior art, the automatically- released hoist ring greatly improves transfer efficiency, saves labor by half, and avoids the influence of a severe working environment at the unloading end on physical and mental health of workers. In addition, the combined loading and unloading frame overcomes the defect that shipment cannot be realized once as a large freighter with a wide deck has dead angles.

The invention discloses a sensor structure of a microwave oven. The sensor structure comprises a sensor probe, a sensor shell, a probe hole, a sensor bracket, a bracket through hole, a bracket baffle plate and a fixing rack, wherein the sensor bracket bears and fixes the sensor shell; the bracket through hole is formed on a back panel of the microwave oven; the sensor bracket can be inserted into and drawn out of the bracket through hole; the bracket baffle plate is arranged at the tail end of the sensor bracket to block the bracket through hole; the fixing rack is fixed inside the microwave oven; the position of the opening of the fixing rack corresponds to that of the bracket through hole; when the sensor bracket is inserted into the bracket through hole from the outer side of the microwave oven, the sensor bracket is inserted into and matched with the fixing rack inside the microwave oven; and when the sensor bracket is completely inserted, the position of the probe hole on the sensor shell corresponds to that of an observing hole on a furnace cavity. The sensor bracket can be taken out of the bracket through hole together with a sensor, after the sensor is cleaned outside the microwave oven, the sensor bracket and the sensor are inserted into the bracket through hole again and fixed, and therefore dirt on the sensor can be conveniently cleaned anytime.

The invention discloses an LLC resonance transducer applied to a distributed power source. The LLC resonance transducer comprises a direct-current power supply source (Vin), wherein an inverter circuit is connected to the direct-current power supply source (Vin), a resonance network is connected to the inverter circuit in parallel and is connected with a primary side winding of a transformer in series, and a secondary side winding of the transformer is connected with an output rectification filter circuit. According to the LLC resonance transducer, higher voltage gain can be obtained at the same frequency, and because the improved LLC resonance transducer has the function of promoting currents, under the circumstance that no voltage boosting link of changing an alternating current (AC) to a direct current (DC) exists, the operating frequency of an LLC resonant transducing link can be reduced. When the LLC resonance transducer, provided by the invention, with an auxiliary circuit normally works, the operating state can be improved, and power density and working efficiency are higher.

The invention discloses a dual-pipeline hydraulic safety valve comprising a valve body, a left valve core component, a right valve core component and a piston. The valve body is provided with a pressure fluid inlet, a left pressure fluid outlet, a right pressure fluid outlet and a through passage, and the left and right pressure fluid outlets are connected to two ends of the through passage and communicated with the pressure fluid inlet through the through passage. The left and right valve core components are both mounted in the through passage so as to turn on or off communication between the left and right pressure fluid outlets and the pressure fluid inlet. The piston is disposed between the left valve core component and the right valve core component, a left valve core passage and a right valve core passage are formed in the left valve core component and the right valve core component respectively, one ends of the two passages are communicated with the left pressure fluid outlet and the right pressure fluid outlet respectively, and the other ends of the two passages are both communicated with the piston. By the aid of the dual-pipeline hydraulic safety valve, when a single oil source supplies oil to dual pipelines, after pressure is lowered to a set value due to fault of one pipeline, oil supply to the faulted pipeline is stopped automatically, and the other pipeline is still kept in a normal working state.

The invention discloses a pre-amplifier, an MEMS sensor readout circuit and an MEMS sensor system, the pre-amplifier comprises a first operational amplifier, the first operational amplifier comprisesa first bias circuit, and the pre-amplifier also comprises a first synchronous switching current supply circuit; wherein the first synchronous switching current supply circuit is used for supplying afirst bias current to the first bias circuit, and the current value of the first bias current when the readout circuit works in a zero clearing stage is smaller than the current value of the first bias current when the readout circuit works in a readout stage. The invention provides a pre-amplifier, an MEMS sensor reading circuit and an MEMS sensor system. The low noise of the reading circuit is ensured, and the power consumption of the reading circuit is reduced, so that the power consumption of the MEMS sensor system is reduced, and the contradiction between the low power consumption and thelow noise of the MEMS sensor system is effectively solved.

The invention relates to a method and to a semiconductor device, comprising means for detecting an unauthorized access to the semiconductor device, wherein the semiconductor device carries out an initialization of the semiconductor device following detection of an unauthorized access, wherein an information item relating to the unauthorized access can be stored by the semiconductor device prior to the initialization, and wherein the stored information item relating to the unauthorized access remains intact following the initialization of the semiconductor device. It is advantageously provided that the stored information item remains intact for a predetermined period of time following disconnection of the semiconductor device from a power supply.

The invention discloses an E-type magnetic core grinding and processing equipment. The E-type magnetic core grinding and processing equipment includes a workbench, a grinding mechanism arranged on oneside of the workbench and capable of ascending and descending, a clamping mechanism arranged on the workbench to clamp and fix an E-type magnetic core, a water guide pipe fixed on the upper end surface of the workbench in a penetrating mode, and a water storage assembly arranged on one side of the workbench to filter water. One side of the workbench is provided with a guide plate and one end of the guide plate corresponds to a water storage tank. One end of the water guide pipe communicates with the water storage assembly, the water guide pipe is provided with a water pump, and the water pumpcan continuously clean impurities on a first filter screen to ensure that the water flow can flow through the filter screen quickly, water which is about to enter a water absorption pipe can also befiltered, and the purity of the water is further ensured.