294 results about "Magnetic valve" patented technology

The invention provides an electromagnetic transient simulation method and system for a magnetic valve type current transformer, and relates to the technical field of power system simulation, and the method specifically comprises the steps: collecting electromagnetic, magnetic field, control and environment data, extracting a flux density peak value, a flux density harmonic distortion rate and a current harmonic distortion rate, and constructing monitoring feature data; constructing a data prediction model, dynamically predicting electromagnetic parameters at the next moment, obtaining electromagnetic data, a flux density peak value, a flux density harmonic distortion rate and a current harmonic distortion rate correction value, performing electromagnetic transient simulation through a finite element-circuit coupling model, calculating an amplitude deviation rate and a phase deviation rate, and performing current harmonic distortion rate correction. And generating a running state comprehensive coefficient to judge the running state of the current transformer. Through multi-dimensional data acquisition, time sequence dynamic modeling and coupling simulation, the problems of poor adaptability of fixed parameters, insufficient time sequence characteristic capture and low simulation precision are solved, and the saturation characteristic simulation precision, the transient prediction accuracy and the secondary side current simulation precision are remarkably improved.

The invention relates to the technical field of medical health monitoring, and discloses a urine volume detection system based on a strain gauge type sensor, which comprises a urine collection container, a strain gauge type sensor, an electromagnetic valve, a main controller and an infrared human body sensor, the upper port of the urine collecting container is used for receiving urine, and the lower port of the urine collecting container is connected with the strain gauge type sensor; the strain gauge type sensor is used for detecting the weight change of the urine collection container, the urine volume detection system based on the strain gauge type sensor and the intelligent closestool overcome the defect that a traditional closestool cannot measure and record the urine volume, convenience is brought to patients who do not want to use a urinal or a pedestal pan and old people with poor eyesight, and the intelligent closestool is convenient to use. A user can know the urine volume when using the closestool or pouring urine into the urinal into the closestool, use is convenient and sanitary, accurate urine volume data helps a doctor to formulate a more accurate medication scheme for a patient, and the patient is prevented from seeing a doctor repeatedly and the health risk caused by medicine problems.

The utility model relates to the field of oil refining, and discloses a linseed oil refining tank which comprises a tank body, an upper cover is arranged at the center of the upper end face of the tank body, four fixed connecting pieces are annularly arranged on the upper end face of the upper cover, and four vacuum pumps are annularly arranged on the upper end face of the upper cover. A protective supporting structure is arranged on the lower portion of the center of the outer side wall of the tank body, a feeding port is formed in one side of the center of the upper end face of the upper cover, a discharging electromagnetic valve is arranged in the center of the lower end face of the tank body, and a heating structure is arranged on the inner side wall of the tank body. According to the stirring device, the sliding blocks are matched with the sliding grooves, the limiting discs are connected with the bolts to work cooperatively with the output shaft, the turbulent flow effect of the multiple stirring grooves is increased in the stirring process, and the synergistic effect of the stirring shell and the stirring rod can cover a large stirring range; and the linseed oil at each position in the tank can be effectively stirred, so that the reaction rate and the quality uniformity can be improved.

The invention relates to the technical field of detection devices, and discloses a corn seed quality detection device which comprises a base, a rotating cylinder is rotatably mounted in the middle of the top of the base, a limiting stop block of a cambered surface structure and a positioning stop block of an annular structure are arranged on the periphery of the rotating cylinder, and a first helical rack of a cambered structure is fixedly mounted at the top of the positioning stop block. A plurality of sampling mechanisms are arranged, along with rotation of a rotary drum, when the sampling mechanisms reach a feeding starting area, corresponding electromagnetic valves are opened, then corn seeds are uniformly fed into a charging tray body through a telescopic pipe which is gradually shrunk, first-time photographing is completed through an infrared spectrum camera in a first-time detection area, and then the rotary drum continues to rotate; when the corn seeds reach the first detection area and reach the second detection area, the tray body completes 180-degree rotation, then the other faces of the sampled corn seeds face the infrared spectrum camera, the comprehensiveness of corn seed surface detection by the equipment is improved, and the detection precision is higher.

The invention relates to the technical field of maintenance equipment, and discloses intelligent pavement maintenance equipment for bridge construction and a working method thereof.The intelligent pavement maintenance equipment comprises a control screen, a maintenance mechanism and a cabinet door, and the maintenance mechanism is provided with a water pipe and a central processing unit. An infrared temperature sensor on the sensor monitors the temperature of a road surface, the opening and closing degree of the adjusting mechanism is controlled according to the temperature, the small hydraulic press hydraulically pushes the limiting structure to ascend and descend, and after the limiting structure ascends and descends, the gap between the limiting structure and the limiting structure changes; therefore, the passing amount of water flow is changed due to the change of the gaps, the water flow is adjusted according to the temperature change monitored by each spraying mechanism, the effect of intelligently adjusting the water spraying amount is achieved, and it is ensured that the humidity is kept at a certain degree in the pavement concrete hardening process. And the problem that the pavement concrete strength is too low due to too large or too small water spraying amount is prevented.

The invention discloses an injection molding mold for unmanned aerial vehicle paddle machining, and relates to the technical field of injection molding, the injection molding mold comprises a loading chassis, and a molding assembly is mounted on the upper surface of the right end of the loading chassis; the forming assembly comprises equal-height supporting columns, a fixed mold, a loading and unloading supporting column, a movable mold, a vibration motor, a support plate, a driven inserting groove, a driven inserting plate, a guiding transverse plate, a transverse adjusting screw rod and a servo motor. According to the injection mold, firstly, the choked flow air cylinder is controlled to start to promote the piston rod of the choked flow air cylinder to enter the shunting injection molding pipe, at the moment, sealing of the injection molding opening is rapidly completed, and therefore injection molding materials in the injection molding pipe can be prevented from being connected with injection molding materials in a cavity, so that the forming quality of the injection mold is fully improved; and at the moment, a backflow pipe II can downwards convey the residual injection molding liquid in the shunting injection molding pipe and the main injection molding pipe into a collecting box, so that self-cleaning of the injection molding pipes is quickly completed, and mixing of new and old injection molding materials is effectively avoided.

The utility model discloses a passive magnetic valve position monitoring device which comprises a sensing support, a monitoring unit and an induction unit, the monitoring unit and the induction unit are both installed on the sensing support, and the sensing support comprises a first sliding groove part, a second sliding groove part, a reset spring installation seat and an induction installation groove. And the reset spring mounting seat is provided with a moving rod through hole. According to the passive magnetic valve position monitoring device, linkage is carried out through the sensing support, the monitoring unit and the induction unit, so that the valve position state of an electromagnetic valve can be monitored when the electromagnetic valve is opened or closed, it is ensured that the electromagnetic valve is really opened or closed, and the passive magnetic valve position monitoring device has the advantages of being stable in structure, high in practicability, high in safety and the like.

The utility model discloses an engineering machinery diesel engine oil supply system which comprises a fuel tank, a first oil supply pipe, a second oil supply pipe, a third oil supply pipe, an electromagnetic valve, a first oil suction pipe, a second oil suction pipe and a liquid level sensor. The first oil suction pipe and the second oil suction pipe are installed at the two ends in the fuel tank respectively, the liquid level sensor is installed at one end in the fuel tank, one end of the first oil supply pipe and one end of the second oil supply pipe are communicated with the first oil suction pipe and the second oil suction pipe respectively, and the other end of the first oil supply pipe and the other end of the second oil supply pipe are communicated with two inlet channels of the electromagnetic valve respectively. One end of the third oil supply pipe is communicated with an outlet channel of the electromagnetic valve, and the other end of the third oil supply pipe supplies oil to a diesel engine power system. According to the utility model, the stability and the flexibility of oil supply are improved, the safety and the fuel oil utilization rate of the system are enhanced, and the problem that the engine flames out due to unsmooth fuel oil supply even if the fuel oil liquid level is very low when the engineering machinery performs large-angle uphill and downhill construction operation is well solved.

According to the technical scheme, the electromagnetic type gas flow regulating valve is characterized by comprising a valve body, a valve seat located at the gas outlet end, a reset piston located at the gas inlet end and a permanent magnetic valve clack which is located between the valve seat and the reset piston and can move and rotate are arranged in the valve body, and the reset piston is of a conical structure internally provided with a fluid channel; the small end of the conical structure right faces the valve seat, the small end of the conical structure abuts against the permanent magnetic valve clack, the large end of the reset piston abuts against a reset spring, and the reset spring drives the reset piston to move towards the valve seat and enables the permanent magnetic valve clack to abut against the valve seat. A magnetic field assembly is arranged in the valve body and drives the permanent magnetic valve clack to move and deflect so that the permanent magnetic valve clack can be separated from the valve seat. The opening degree of the valve is controlled by changing the magnitude of current, the flow can be controlled to be minimum, and remote control can be achieved without an electric actuator.

The utility model relates to the technical field of egg yolk antibody extraction, and particularly discloses a separation and extraction device for antibodies in egg yolk, which comprises a treatment box, a bearing frame is fixedly mounted at the bottom end of the treatment box, a conveying pipe penetrates into one side of the top end of the treatment box, and a guide hopper is fixedly mounted at the lower part in the treatment box. A separation mechanism is arranged on one side of the conveying pipe at the top end of the treatment box; the separation mechanism comprises a motor, the motor is embedded in one side of the conveying pipe at the top end of the treatment box, a connecting plate is fixedly installed at the power output end of the motor, and a rotating cylinder is fixedly installed on the outer wall of the connecting plate. The communicating groove is communicated with the rotating cylinder, so that impurities such as residual residues and chippings can be discharged out of the rotating cylinder, and the situation that the quality of next separation and extraction is affected due to deterioration of the residual residues after a long time since the residues are difficult to clean due to adsorption is avoided.

The invention discloses a high-precision numerical control lathe with an intelligent chip removal function and a control method of the high-precision numerical control lathe, and relates to the field of numerical control lathes. The high-precision numerical control lathe comprises a lathe body, a turning unit and a cutting fluid circulating unit; at the moment, the output power of the liquid supply pump is automatically adjusted, and the opening degree of the throttling electromagnetic valve is automatically matched, so that the digital display of the pressure gauge is in a preset interval, the constant-pressure variable-flow control of the vortex separator is realized, the separation effect and the equipment safety are ensured, and the paper feeding speed of the paper tape filter is actively adjusted along with the change of the reflux quantity of the cutting liquid; waste caused by too high paper moving speed is avoided, blockage caused by too slow paper moving is also avoided, filter paper is reasonably and efficiently utilized, self-adaptive adjustment of the cutting fluid system is achieved, cutting fluid supply is guaranteed, stable and continuous operation of the whole cutting fluid system is guaranteed, and negative effects caused by shutdown are avoided.

According to the cleaning and separating device for the magnetic metal particles, through cooperation of the overturning motor, the beaker containing barrel, the rotating motor, the water adding faucet, the flushing faucet, the peristaltic pump, the water tank, the electromagnetic valve and the controller, a beaker is placed in the beaker containing barrel to be clamped and fixed, the device is started, and the magnetic metal particles are separated from the beaker containing barrel. The water adding faucet at the top adds quantitative degaussing water into the beaker, meanwhile, the magnet at the bottom is driven by the rotating motor to work for preset time, adsorption of the magnet and magnetic particles in the beaker, rotation stopping of the magnet at the bottom and water pouring by overturning the beaker by about 95 degrees are achieved, and the actions of water adding, magnet rotating, beaker overturning and beaker aligning are cyclically conducted. After the water pouring action is completed, the transverse flushing faucet is started to move rightwards to extend into the beaker for flushing, and after transverse flushing is completed, the beaker is aligned, the beaker is taken out, and the magnetic particulate matter is taken out. The device is simple in structure, convenient to operate, high in treatment efficiency, good in magnetic particle cleaning and separating effect and beneficial to application and popularization.

An aircraft rudder control system having one or more rudder pedal adjustment systems, each including a rudder pedal actuatable to control movement of a rudder, and further including a support frame component, a rudder pedal arm, a pin, a pin receiving component, a first lever, a second lever, and / or a solenoid. The rudder pedal arm is rotatably attached to the support frame component and the rudder pedal is attached to the rudder arm. While the pin is received in the pin receiving component, the rudder pedal arm is prevented from rotating. When the pin is withdrawn from the pin receiving component, the rudder pedal arm is freed to be rotatably repositioned by user foot actuation. The first lever can manually actuate the pin into and out of the pin receiving component, and the second lever is operated by the solenoid, actuating the pin when the solenoid is activated and deactivated.

The utility model relates to the technical field of rice humidification, and discloses a rice humidification device which comprises a humidification cylinder, four supporting legs are evenly and fixedly connected to the bottom end of the humidification cylinder, a feeding pipe is fixedly connected to the position, close to the left side, of the top end of the humidification cylinder, and a protective shell is fixedly connected to the middle of the top end of the humidification cylinder. A water pump is fixedly connected to the position, close to the left side, of the top end of the water tank, a water pipe is fixedly connected to the top end of the water pump, and under the action of meshing with an auxiliary bevel gear, a rotating rod at the bottom end of the auxiliary bevel gear is driven to rotate under movable limiting of a limiting column, and then a scraping plate and a stirring rod are driven to rotate; according to the rice humidifying device, the scraping plate can rotate to clean rice adhered to the inner wall of the humidifying barrel, the stirring rod rotates to stir the rice in the humidifying barrel so that the rice can be evenly humidified, under the action of the water filtering plate, redundant water is filtered to the bottom end of the humidifying barrel, the liquid magnetic valve is opened, and humidifying water is discharged through the liquid magnetic valve.

The application provides a sampling device for tumor cell thoracoabdominal membrane metastasis detection, which comprises a liquid storage container, a sampling assembly, a sampling assembly and an electromagnetic stirring assembly. The electromagnetic stirring assembly comprises an electromagnetic stirrer arranged on the outer wall of the bottom of the liquid storage container and a magnetic core arranged on the inner wall of the bottom of the liquid storage container. When the electromagnetic stirring assembly works, the magnetic field force generated thereby can drive the sample liquid in the liquid storage container to be uniformly stirred. The sampling assembly and the sampling assembly are each provided with a control system (i.e. a flow controller and an electromagnetic valve). When the preset capacity is reached, the flow controller can control the electromagnetic valve to be automatically closed. The sample liquid is fully and uniformly stirred by the electromagnetic stirrer, and is accurately divided into multiple sampling tubes, so that the accuracy of the tumor cell thoracoabdominal membrane metastasis detection result and the processing efficiency are improved.

The invention belongs to the technical field of high-pressure water flow cracking, and discloses a portable energy storage pulse high-pressure water flow cracking device, which comprises a water supply pipeline, a pulse generator, a pulse generator and a pulse generator, the supercharging unit is arranged on a main pipeline of the water supply pipeline and comprises a high-pressure water pump, a pulsation attenuator and at least two superchargers which are connected between the high-pressure water pump and the pulsation attenuator in parallel, so that water flow supplied by the high-pressure water pump is subjected to shunt pressure increasing through the at least two superchargers and then mixed to the pulsation attenuator; the pulse jet flow unit is arranged on a branch pipeline of the water supply pipeline and comprises an energy storage cavity, a linear electromagnetic valve and a nozzle array, a water inlet of the energy storage cavity is connected with a water outlet of the pulsation attenuator, and the linear electromagnetic valve is configured to open and close to control communication of the water outlet of the energy storage cavity and the nozzle array; the nozzle array comprises a plurality of jet nozzles arranged according to a preset three-dimensional space structure; and the control system is electrically connected with the pressurizing unit and the pulse jet flow unit.

To provide an externally programmable shunt valve assembly with a motor having a rotor that is operable in response to an externally applied magnetic field and configured to increase or decrease the working pressure of the shunt valve assembly.SOLUTION: The motor may further include a position sensing mechanism that allows a position of the rotor and associated pressure setting of the valve to be determined using an external magnetic sensor. In certain examples, the motor further includes a mechanical brake which is magnetically operable between a locked position and an unlocked position and which, in the locked position, prevents rotation of the rotor.SELECTED DRAWING: Figure 1A

To provide an automatic music sheet feeder, a music sheet support mechanism, and a sequential feed mechanism which are highly practical, free from difficulty in viewing due to light reflection, easy to use, and can be manufactured at low cost overall, and are convenient to mount on an existing general music stand. [Solution] The automatic music feeder drops music boards 1, each with the same number of scores attached to it, one by one in sequence to turn the page in response to a signal from a foot switch 15. The music boards are placed on a box-shaped music stand 2 and supported by a music board support mechanism, a sequential feed mechanism that controls this support mechanism to release the support for each music board and allow it to drop, a push-pull solenoid 1 as an actuator, a timer relay 13, and a power source 14. The falling music boards are caught by a music board receiving net 16.

The utility model relates to the field of plastic processing, and discloses a double-lifting platform for forming of a plastic vacuum forming machine, which comprises a main body frame, supporting legs are arranged at four corners of the bottom of the main body frame, a top plate is fixedly connected to the top of the main body frame, and two groups of driving devices are arranged between the main body frame and the top plate. And the driving device comprises two driving mechanisms which are symmetrically installed up and down, each driving mechanism comprises a second fixing frame and an electromagnetic valve, the top of each second fixing frame is fixedly connected with a static platform, the center of the bottom of each static platform is fixedly connected with an air cylinder, and a driven frame is arranged on the outer side of the bottom of each air cylinder. The double-lifting-platform synchronous closing design is adopted, the double-lower-die control air cylinder structure is combined, the main platform drives the lower dies to stably ascend and descend, the auxiliary platform assists in pressurization, and the problems that a single platform is insufficient in pressure and not synchronous in the vertical direction are solved. By means of the design, the mold clamping force, the forming precision and the production efficiency of equipment are remarkably improved.

The present application belongs to the technical field of water treatment, and discloses a water treatment method and system adopting unidirectional pulse high-voltage electric field discharge oxidation, alternating current electric field fixed spiral wing fin static disturbance electric field microflocculation, conventional magnetic field separation, and anaerobic reduction reaction. A pressurizing water pump is installed in series at the outlet of a water source, and the treated water enters the unidirectional pulse high-voltage electric field discharge oxidation device, the alternating current electric field fixed spiral wing fin static disturbance microflocculation device, and the magnetic separation device in sequence through pressurization, and then enters the conical bottom anaerobic reduction reaction water tank, and is supplied to the user after pressurization by the outlet pressurizing pump; when the magnetic separation device is saturated, the backwashing process is started, the backwashing adopts steam-water backwashing, the backwashing sewage enters the conical bottom anaerobic reduction reaction water tank, a backflow submersible metering pump is arranged at the upper half of the water tank, the outlet of the metering pump is connected to the water inlet of the unidirectional pulse high-voltage electric field discharge oxidation device and is provided with an electromagnetic valve, and is used for strengthening the oxidation microflocculation again, thereby saving the cost of the traditional process by 50-80%.

A sewage heat recovery heating system of a magnetic suspension heat pump comprises a sewage pool and a heat exchange station, the heat exchange station comprises a magnetic suspension heat pump unit and a plate heat recovery set, the sewage pool is connected with the magnetic suspension heat pump unit, and the magnetic suspension heat pump unit comprises a first magnetic suspension heat pump and a second magnetic suspension heat pump. The first magnetic suspension heat pump is connected with the second magnetic suspension heat pump; the magnetic suspension heat pump is used for efficiently recycling waste heat of sewage, heating energy efficiency is improved, and carbon emission is reduced. The two stages of heat pumps are connected in series to operate, and are combined with the plate heat exchange recovery group to realize deep heat exchange and improve the COP value; through linkage of the water pump set, the overflow valve and the electromagnetic valve, stable operation is guaranteed, and overflow is prevented. The magnetic suspension technology reduces mechanical friction, reduces maintenance cost and prolongs the service life of equipment. The whole system is energy-saving, environment-friendly, intelligent, efficient and stable in operation, and can be widely applied to the fields of building heating and industrial waste heat recovery.

A multi-sided work light includes a light head system, a light body system and a magnetic valve control system, the light body system includes a side lighting assembly, a lamp body component and a power supply component, the light head system and the side lighting assembly are connected to the lamp body component, the power supply component is electrically connected to the side lighting assembly and the light head system, the magnetic valve control system is arranged to control operation of the light head system and the side lighting module through a rotation operation.

1. Name of the design product: non-magnetic valve control water meter. 2. Use of the design product: for water metering. 3. Design points of the design product: in shape. 4. Picture or photo best indicating the design points: perspective view 1.

The invention discloses a dermatological medical hair removal instrument, and relates to the technical field of hair removal instruments. The dermatological medical hair removal instrument comprises a mounting plate, a hair removal instrument body is fixedly connected to the mounting plate, and a display screen is fixedly connected to the hair removal instrument body; rollers are arranged at the bottom of the mounting plate, a C-shaped clamping jaw is fixedly connected to one side of the hair removing instrument body, and a laser head is movably connected to the interior of the C-shaped clamping jaw; the laser head is electrically connected with a wire harness, and a laser generating device, a control module and a storage box are arranged in the hair removal instrument body. According to the medical hair removal instrument for the dermatology department, the spray cooling assembly controls the spray amount and the spray time through the MEMS electromagnetic valve; the air cooling assembly changes the air speed by adjusting the rotating speed of the centrifugal fan, dynamic cooling of the skin is achieved, meanwhile, the control module adjusts output parameters of the laser generating device in real time according to temperature monitoring data, and it is ensured that skin heat damage is avoided while effective depilation is guaranteed.

The utility model relates to the technical field of magnetic valve conveying, in particular to a structure for quickly detecting a magnetic valve, which comprises an up-and-down moving part, a front-and-back moving part, a left clamping part and a right clamping part, the front-back moving part is mounted at the driving end of the up-down moving part, and the driving end of the up-down moving part drives the front-back moving part to move up and down; the left clamping part and the right clamping part are installed at the driving end of the front-back moving part, the left clamping part and the right clamping part are matched to act to clamp the magnetic valve, the driving end of the front-back moving part drives the left clamping part and the right clamping part to move front and back, and the left clamping part and the right clamping part are matched to clamp the magnetic valve. The up-down moving part drives the front-back moving part to move up and down, so that the left clamping part and the right clamping part can clamp the magnetic valve to move up and down to place the magnetic valve to the detection equipment, manual carrying is not needed, the labor cost is saved, the conveying speed can be increased, and the conveying efficiency is improved. And the production cost can be reduced.

The invention belongs to the technical field of pressure casting, and particularly relates to a magnesium alloy vacuum quantitative pressure casting device which comprises a heat preservation furnace, an inclined heating barrel is arranged in the heat preservation furnace, a material frame communicated with one end of the heating barrel is connected to the heat preservation furnace, a heat preservation barrel is connected to the upper portion of the heat preservation furnace, and a material pipe is communicated with the other end of the heating barrel and penetrates through the heat preservation barrel. A fixed die and a movable die are arranged on the left side of the heat preservation furnace, a die cavity is formed when the fixed die and the movable die are closed, and a feeding hole leading to the die cavity is formed in the middle of the fixed die. The raw materials in the heating barrel are melted through the first induction coil, the movable mold and the fixed mold are closed, the vacuum pump is controlled to vacuumize, the melted raw materials enter the die-casting charging barrel, the heat preservation effect is improved through the heat preservation barrel and the second induction coil, the raw materials are pushed into a mold cavity through the injection inner barrel, and the die-casting charging barrel and the injection inner barrel are effectively cooled through the cooling pipe. Therefore, the raw materials at the feeding hole are cooled, the situation that semi-solid raw materials exist at the feeding hole is avoided, and the die-casting effect is guaranteed.

The application discloses a wind-sand environment simulation experiment table and application thereof, and relates to the technical field of wind-sand environment simulation experiments, and comprises a box body, the box body is provided with a transparent cover, the transparent cover covers half of the shell of the box body, sand filter screens are screw-connected to the front end and the rear end of the box body, and circular sand filter screens are fixedly connected to the middle portions of the sand filter screens. The wind-sand environment simulation experiment table and application thereof automatically guide the sand in the sand tank to the small magnetic valve pipe and the large magnetic valve pipe, ensure that the wind-sand assembly can continuously output the sand from the magnetic valve pipe structure under the condition of sand, and avoid the interruption phenomenon, so that the sand can be finally completely drained from the sand tank, sand particle residues are avoided, the problem of manually cleaning the sand particles in the sand tank is avoided, and the accurate statistics and collection of the total amount of sand changes in the wind-sand environment simulation experiment are facilitated.

The invention provides an electrical conversion device based on electromagnetic induction and an air pressure adjusting method of the electrical conversion device. The electrical conversion device based on electromagnetic induction comprises a shell, the shell is provided with an installation space, and an electromagnetic assembly is arranged in the shell; the nozzle is arranged in the mounting space in the axial direction of the shell, a back pressure cavity is formed between the nozzle and the mounting space, the nozzle is provided with an air inlet hole and an air outlet hole, an air channel is formed between the air inlet hole and the air outlet hole, the air channel is communicated with the back pressure cavity, and a magnetic valve element is arranged in the air channel; the control mechanism comprises a sensor and a controller, and the controller is electrically connected with the electromagnetic assembly. The backpressure cavity formed between the nozzle and the shell is communicated with the exhaust hole of the nozzle, and then the flow at the exhaust hole is adjusted by controlling the specific position of the magnetic valve element, so that the gas pressure of the backpressure cavity is indirectly controlled, the position of the magnetic valve element in the nozzle can be accurately and rapidly controlled, and the service life of the nozzle is prolonged. And the output airflow of the electrical conversion device is more stable.

The disclosure relates to an implantable ocular drainage device for controlling intraocular pressure (IOP) comprising at least one drainage channel, and at least one magnetic control mechanism. The at least one magnetic control mechanism is a magnetic valve mechanism configured to regulate flow in the at least one drainage channel.