29results about "Mangetic float movement actuation" patented technology

To provide a bath boiler which enables a water flow switch to stably operate even if a passage extending from a pump to the water flow switch bends.SOLUTION: A bath boiler includes a connection pipe part 70 which connects a pump with a water flow switch 40. A casing 71 of the water flow switch includes: an inflow pipe part 76 where hot water flows from the connection pipe part; and an outflow pipe part where which hot water flows out from the casing in a third direction orthogonal to the first direction. The inflow pipe part includes: a first cylinder part 76A; a second cylinder part 76B disposed at a downstream; and a third cylinder part 76C which connects the first and second cylinder parts. A cross sectional area of an interior of the second cylinder part is smaller than a cross sectional area of an interior of the first cylinder part. On an inner peripheral surface of the second cylinder part, an orthogonal surface orthogonal to a third direction is provided at an opposite side of the third direction. An inner peripheral surface of the third cylinder part is formed with a connection surface 81 which connects the orthogonal surface with an inner peripheral surface of the first cylinder part. The connection surface 81 is located at an inner side of the third cylinder part while continuously changing its facing direction from a direction opposite to the second direction to the third direction from the upstream to the downstream. An upstream side end of the connection surface is disposed at a depth side in the second direction.SELECTED DRAWING: Figure 5

The utility model relates to the technical field of transformer protection assemblies, in particular to a six-node relay separation mechanism which comprises a shell, a junction box is installed at the top end of the shell, a signal rod is installed on the inner side of the shell, an oil flow baffle is installed at the bottom of the inner side of the shell and arranged below the signal rod, and a relay is installed on the signal rod. The bottom of one side of the shell is provided with a lower floating ball, one side of the shell is provided with an upper floating ball, the upper floating ball is arranged above the lower floating ball, the surface of the shell is provided with a first reed pipe and a second reed pipe, the first reed pipe is arranged on one side of the second reed pipe, the rear side of the shell is provided with a third reed pipe, and the third reed pipe is arranged on the other side of the shell. According to the technical scheme, through the design of the device, when the transformer breaks down, the functions of the heavy gas flow velocity baffle and the oil flow velocity baffle are separated, and the independent contact sends out a tripping signal so that the transformer fault can be better analyzed.

A filter device and methods of use thereof are provided. The filter device may include a pitcher for removably engaging with a base in fluid communication with a fluid source. The pitcher may include a magnetic float assembly, and the base may include a sensor, e.g., a Reed switch, for detecting when a magnetic float of the magnetic float assembly is within a detectable range of the sensor. Upon detection of the magnetic float within the detectable range by the sensor, a controller of the filter device may instruct a pump to pump fluid from the fluid source, through a filtration system of the filter device, and into the pitcher. When the pitcher is full of fluid, the magnetic float will be out of the detectable range of the sensor, such that fluid will stop being transferred from the fluid source to the pitcher.

To provide a reed switch unit capable of improving detection accuracy.SOLUTION: A reed switch unit 11 comprises: an elongate reed switch sub-unit 21, which has a reed switch 25 and has a first end portion 26 and a second end portion 27 in a length direction; and a cylindrical housing 22, which has a first opening portion 32 into which the reed switch sub-unit 21 can be inserted from the first end portion 26 side, and which accommodates and holds the reed switch sub-unit 21. The second end portion 27 side of the reed switch sub-unit 21 is supported on the first opening portion 32 side by the housing 22. The housing 22 has a second opening portion 33 on the opposite side to the first opening portion 32. The reed switch unit 11 is provided with a rubber member 23 that is fitted into the second opening portion 33 to stop water from the second opening portion 33, and that supports the first end portion 26 of the reed switch sub-unit 21.SELECTED DRAWING: Figure 3

The present disclosure provides a float switch capable of ensuring the safety of a person even when the float switch is used for water taken in by the person.SOLUTION: A float switch of the present disclosure is a float switch that houses a sensor and an electric wire inside a case from an opening of the case, includes a float that moves up and down along the case, and is formed by filling the inside of the case with a filler, wherein the filler includes a first filler that holds the sensor and the electric wire, and a second filler that is filled in the opening of the case and is different from the first filler.SELECTED DRAWING: Figure 5

A novel float-type liquid level switch belongs to the technical field of liquid level detection equipment and comprises a float, a sleeve, a voltmeter, an upper shell, a thermistor, a detection circuit and a temperature display circuit. The upper end of the sleeve is mounted at the lower end of the upper shell, the thermistor is mounted at the lower end in the sleeve, and the inner side of the floater movably sleeves the outer side end of the sleeve; each detection circuit is matched with a Hall sensor, the Hall sensors are mounted at the front side end of a strip-shaped circuit board at equal intervals from top to bottom, and the strip-shaped circuit board is vertically distributed and mounted in a sleeve; and the voltmeter, the detection circuit and the temperature display circuit are arranged in the upper shell and are electrically connected. The liquid level display device can display more depths and specific liquid level numbers of an area where the liquid level display device is located in real time, a technician can output more different liquid level depth control signals to other electric equipment through one corresponding Hall sensor, the temperature of liquid in the area where the liquid level display device is located can also be displayed, and therefore the liquid level display device is relatively convenient to use and has more functions.

The utility model provides a convenient and replaceable liquid level switch assembly, and aims to solve the problems that a liquid level switch assembly in the prior art needs to use wires to connect terminals to establish circuit connection, wired connection is relatively tedious, and production and assembly efficiency is reduced at the same time. The switch mainly comprises a circuit board, welding feet, wiring terminals, a switch mechanism and a magnetic steel assembly. According to the utility model, the circuit board is adopted, the internal integration of the circuit board is used for replacing the traditional wire assembly wiring, the tedious wiring among the switch body, the wiring terminal, the switch bracket and the wire is removed, and the wireless effect is realized; the wiring terminal, the circuit board and the switch are modularized integrated parts, and the switch frame is manufactured by a mold, so that only simple operation is needed during production and assembly, and the assembly complexity is greatly reduced; meanwhile, the switch frame is provided with the magnetic steel seat, the magnetic steel block is directly installed in the magnetic steel seat, secondary processing of fixed magnetic steel on the switch arm is not needed, secondary processing of an original switch is avoided, and stable performance of the original switch is effectively ensured.

The invention relates to a submersible motor pump which comprises a float (6) that interacts with a switch (14) for the automated control of the pumping operation. The switch (14) switches the pump on at an upper limit value and switches the pump off at a lower limit value. The switch (14) is connected to a motion member (13) which has an inner magnet (12), the inner magnet (12) being connected to an outer counter magnet (10) which is arranged in a pivotable magnet holder (9). The magnet holder (9) is connected to a lever arm (5) of the float (6) which is designed to be pivotable in its position depending on the surrounding liquid level. The pivoting movement of the magnet holder (9) is at least partially decoupled from the pivoting movement of the float (6).

A threaded adapter seal comprising fitting and sealing components for fluid transport applications. Opposed gripping and externally-threaded sections in the fitting component each have hollow interiors, and reduced interior and exterior diameter dimensions of the externally-threaded section compared to the gripping section, provide an interior stop separating the fitting component sections and also provide a radially-extending exterior surface therebetween where an indent is present to improve leak-reducing placement, fit, and performance of the sealing component after threaded adapter seal installation is complete. Improved seating and fit of the sealing component prevent overtightening thread damage during installation. Use of a non-standard thread angle for the externally-threaded section in the range of 1.75 to 4 degrees does also. Contemplated use of the threaded adapter seal includes connection of fluid-bearing tubular components, extension tubing, and / or fluid-activated shut-off switches where the addition of a separable threaded connection is desired for maintenance or replacement purposes.

This invention provides a liquid level switch mounting structure, a liquid level switch, and an electrical device, relating to the field of liquid level detection technology. It solves the technical problem of inconvenient installation of existing liquid level switches. The liquid level switch mounting structure includes a snap-fit ​​fixing structure and a connecting part disposed on the liquid level switch. The snap-fit ​​fixing structure includes a snap-fit ​​part and a mating part, one of which is disposed on the connecting part and the other on the bracket plate of the electrical device. After the connecting part is vertically moved towards the bracket plate and into position, the snap-fit ​​part and the mating part engage to secure the connecting part to the bracket plate. This invention enables rapid installation of the liquid level switch and the bracket plate.

The utility model discloses a double-water-level switch which is located on one side of a water tank and comprises a switch shell, two floaters and two water level switches, the switch shell comprises two barrel-shaped limiting shells, each limiting shell is internally provided with one floater, the water level switches are installed on the side wall of the water tank, and each water level switch corresponds to the corresponding floater. The two barrel-shaped limiting shells are each internally provided with a floater, when any floater floats to the set water level, the floater is aligned with the water level switch, the water level switch transmits a signal to the electric control unit after sensing the floater, and the electric control unit controls the water inlet valve to be closed. The two floaters and the two water level switches are arranged in the double-water-level switch, the water inlet valve can be closed as long as one water level switch signal is detected, the water level in the water tank can be effectively controlled even if one water level switch fails, and the water inlet reliability is improved.

The application relates to a non-contact switch and an electronic device. The non-contact switch is used for controlling multiple working modes, and comprises a fixed part, a sliding part and a processor; the fixed part comprises a sensor module; the sliding part is arranged in a spaced mode relative to the fixed part and can move along a preset direction relative to the fixed part; the sliding part comprises a magnetic head, and the magnetic head at least partially coincides with the sensor module so that the sensor module can judge the position of the sliding part relative to the fixed part; the processor is electrically connected with the sensor module, and the processor makes the non-contact switch be in a corresponding working mode according to the position of the sliding part relative to the fixed part. The electronic device comprises the non-contact switch. The non-contact switch provided by the application is beneficial to improving the sealing performance of the electronic device, and the sliding part does not need to be directly contacted with the fixed part.

The utility model belongs to the technical field of switches, and particularly relates to a flange type float switch. Comprising a flange upper cover and a flange lower cover, the flange upper cover is connected with the flange lower cover, the flange lower cover is provided with a shell and a shell connecting end, the side wall of the shell is oppositely provided with a liquid outlet and a liquid inlet, the flange upper cover is provided with a signal line leading-out port, the middle position of the flange upper cover is provided with a cavity, and a switch module is installed in the cavity. The switch module and the magnetic steel rod are induced through magnetic steel, and the magnetic steel rod is connected with the floating ball. The utility model has the beneficial effects that the swing type floating ball mechanism and the flange type dismounting and mounting structure are arranged according to the actual situation of an engineering site; through a simple switch module structure, a reliable floating ball swinging and switch module movement mode is provided.

The invention discloses an automatic production line for oil can floaters. The automatic production line comprises an injection molding machine, a base iron feeding device, a weighing device, a magnetic detection device and a discharging device. A floater body is processed by the injection molding machine, transferred to the base iron feeding device for loading base iron, weighed by the weighing device, detected by the magnetic force detection device, and finally discharged by the discharging device. The base iron feeding device is provided with a feeding vibration disc, a feeding bearing seat and a feeding mechanical arm, an output port of the feeding vibration disc is connected with a feeding rail, the feeding mechanical arm can slide above the feeding rail and the feeding bearing seat, the floater body is transferred to the feeding bearing seat from the injection molding machine, and the base iron is clamped and conveyed to the floater body. And a magnetizing device is arranged between the weighing device and the magnetic force detection device, and the weighed floater body with the base iron is fed for magnetizing. According to the production line, automatic production of floater bodies is achieved through all the devices, efficiency is improved, the base iron feeding device facilitates conveying and mounting, the magnetizing device guarantees quality, the whole is compact and stable, and the large-scale production requirement is met.

The invention relates to a submerged motor pump comprising a float (6) which interacts with a switch (14) in order to automatically control the pumping process. A switch (14) switches on the pump at an upper limit value and switches off the pump at a lower limit value. The switch (14) is connected to a moving element (13) which has an inner magnet (12), the inner magnet (12) being connected to an outer counter magnet (10) which is arranged in a pivotable magnet carrier (9). The magnet carrier (9) is connected to the lever arm (5) of the float (6), which is configured so as to be pivotable in position depending on the surrounding liquid level. The oscillating movement of the magnet carrier (9) is designed to be at least partially decoupled from the oscillating movement of the float (6).

To provide a bath boiler which enables a water flow switch to operate stably even if a passage extending from a pump to the water flow switch bends.SOLUTION: A bath boiler includes: a pump; a water flow switch 40 which operates according to a water flow in a first direction; and a connection pipe part 70 which connects the pump with the water flow switch. At a connection portion between the connection pipe part and the water flow switch, a direction in which hot water flows changes from a second direction intersecting with the first direction to the first direction. The water flow switch includes a casing 71 forming a path of hot water. The casing includes an inflow pipe part 76 into which hot water flows from the connection pipe part. The inflow pipe part includes: a first cylinder part 76A; a second cylinder part 76B disposed at a downstream; and a third cylinder part 76C which connects the first cylinder part with the second cylinder part. A cross sectional area of an internal space of the second cylinder part is smaller than a cross sectional area of an internal space of the first cylinder part. An inner peripheral surface of the third cylinder part is provided with an inclined part 81 which is disposed at a depth side in the second direction and gradually inclines inward of the third cylinder part from the upstream to the downstream.SELECTED DRAWING: Figure 5

The invention relates to the technical field of liquid level control, and discloses a liquid level switch which comprises a switch body, a mesh enclosure and a spherical floater. A magnetic switch is arranged in the switch body; the net cover is of a spherical net structure, a mounting hole is formed in the top of the net cover, the switch body is plugged into the mounting hole of the switch body, and a spherical net-shaped containing space is jointly defined by the net cover and the switch body; the ball-shaped floater is movably contained in the containing space, a magnet is arranged in the ball-shaped floater, and in the floating process of the ball-shaped floater, the ball-shaped floater is guided by the containing space to float to the position of the installation hole and triggers the switch body. Clamping stagnation caused by posture deviation or uneven local stress is not easy to occur when the device moves in the accommodating space; the spherical net-shaped containing space defined by the net cover and the switch body provides an adaptive movement range for the spherical floater, the clamping stagnation problem of a traditional liquid level switch is effectively solved, and the reliability and the use stability of the whole device are improved.

The application discloses a position detection magnetic sensing chip, which is used for improving the accuracy of data collection of an integrated magnetic switch chip. The application comprises the position detection magnetic sensing chip, which comprises a ground pin GND, an enable receiving pin TRI, an enable sending pin TRO and an output pin OUT; a power supply module is connected with a Wheatstone bridge, a low-offset amplifier, a first Schmitt trigger and a time adjustment module; a first transistor is connected with the Wheatstone bridge, the low-offset amplifier, an enable logic module EN Logic and the ground pin GND; the low-offset amplifier is connected with the first Schmitt trigger, the Wheatstone bridge, the enable logic module and the time adjustment module; a second transistor is connected with the time adjustment module, the output pin OUT, the first Schmitt trigger and the output pin OUT; and the enable logic module is connected with the enable receiving pin TRI, the enable sending pin TRO and the time adjustment module.

To provide a switch capable of restraining enlargement of an operation body and reduction of detection accuracy.SOLUTION: A switch comprises a body, and an operation body that can be arranged at a detection position adjacent and opposite to the body. The operation body has first to fourth magnets sequentially aligned in a second direction. The body has three or more sensors constituted to detect a magnetic flux generated by at least one of the first to fourth magnets. The second and third magnets are arranged to satisfy a first or second condition. The first condition is such that the second and third magnets are arranged at a position nearer the body than the first and fourth magnets in a first direction. The second condition is such that a distance between the second and third magnets in the second direction is longer than at least one of a distance between the first and second magnets in the second direction and a distance between the third and fourth magnets in the second direction.SELECTED DRAWING: Figure 3

The switch according to the present disclosure includes a main body and an actuator that is capable of being disposed at a detection position that the actuator is close to the main body and faces the main body. The actuator includes a first magnet, a second magnet, a third magnet, and a fourth magnet arranged in order along a second direction. The main body includes three or more sensors configured to be able to detect a magnetic flux generated by at least one of the first to the fourth magnets. The second magnet and the third magnet are arranged so as to satisfy a first condition or a second condition. The first condition is a condition that the second magnet and the third magnet are arranged at positions closer to the main body than the first magnet and the fourth magnet are, in the first direction. The second condition is a condition that a distance between the second magnet and the third magnet in the second direction is longer than at least one of a distance between the first magnet and the second magnet in the second direction and a distance between the third magnet and the fourth magnet in the second direction.

An oil level measurement system for an aircraft engine includes a magnetic float disposed in the aircraft engine, a first sensor ladder configured for sensing a position of the magnetic float, and a second sensor ladder configured for sensing a position of the magnetic float. A controller is configured to determine an oil level of an engine based on an engine status signal, a first signal from the first sensor ladder, and a second signal from the second sensor ladder. An oil level sensing method for measuring an oil level within an aircraft engine when the aircraft engine is off includes comparing a first signal from a first sensor ladder with a second signal from a second sensor ladder, indicating a fault when the first signal is different from the second signal, and determining an oil level of an aircraft engine when the first signal matches the second signal.

The application provides a gas relay and relates to the technical field of power equipment protection devices.The traditional gas relay is improved through structural innovation: the counterweight block is matched with the magnetic block and the magnetic control dry reed tube linkage structure, the temperature drift and fatigue problems of the mechanical spring are eliminated, the light gas alarm assembly adopts the magnetic floating ball and guide rail cooperation mechanism, the axial displacement of the magnetic floating ball along the rectangular guide rail drives the second dry reed tube to act, and the traditional counterweight oil cup structure is replaced.In the preferred scheme, the magnetic flap oil level display, the fluorine rubber protection wiring terminal, the improved exhaust port layout position and the corrugated hose connection structure are integrated.The scheme improves the traditional mechanical transmission mode through the electromagnetic induction principle, effectively solves the misoperation and delayed alarm problems, has the technical advantages of high measurement accuracy, strong anti-interference and long service life, and significantly improves the reliability of the transformer gas protection system.

A switch mechanism includes: a magnetic switch that accepts a first operation and a second operation, the first operation enabling a first contact member and a second contact member to transition from a contact state to a non-contact state or from the non-contact state to the contact state by an external magnetic field, a second operation enabling the first contact member and the second contact member to transition from the contact state to the non-contact state or from the non-contact state to the contact state at least once or more by the external magnetic field; and a controller that operates in response to an operation on the magnetic switch. The controller drives a power receiving device when the second operation performed on the magnetic sensor is accepted.

The utility model discloses a float switch, which comprises an annular floating ball, a magnetic reed switch, a guide rod, a guide rod fixing frame and a stainless steel shell, the upper bottom surface and the lower bottom surface of the stainless steel shell are respectively provided with a round hole, the guide rod is fixed at one end of the guide rod fixing frame, an annular magnet is arranged in the annular floating ball, and a contact of the magnetic reed switch is connected with an external electrical control system. The stainless steel shell is a hollow cylinder, the end, away from the guide rod, of the guide rod fixing frame is provided with a longitudinally-distributed linear rack, the linear rack is inserted into a connecting support, one side of the connecting support is fixed into the stainless steel shell, the linear rack is meshed with a gear, and the center of the gear is connected with a rotating shaft stretching out of the stainless steel shell. An operation knob is connected to the end, located on the outer side of the stainless steel shell, of the rotating shaft, an edge lifting rod is arranged below the guide rod, the magnetic reed switch is sealed in the edge lifting rod, and the edge lifting rod is sleeved with the annular floating ball. The structure can adjust the initial height of the annular floating ball.

The invention discloses a high-temperature and high-pressure magnetic liquid level float switch device, which relates to the technical field of industrial liquid level monitoring and comprises a cylindrical vertical measuring barrel, the outer side of the cylindrical vertical measuring barrel is fixedly connected with a liquid inlet connector and an air inlet connector, the top end of the cylindrical vertical measuring barrel is connected with a guide pipe, the bottom of the cylindrical vertical measuring barrel is connected with a blow-off pipe, and the guide pipe is provided with a titanium alloy floating ball, a thin steel pipe, a magnet and a control assembly of a magnetic induction switch. According to the invention, through a titanium alloy material and a sealing design, extreme working conditions are adapted, monitoring precision is improved through precise guiding, maintenance of a blow-off pipe is simplified, the system is suitable for equipment such as a high-temperature heater of a power plant, and the system has the advantages of simple structure, convenience in operation, low cost and the like. The device has the advantages of long service life, fast response and high stability.

The invention relates to a protection and monitoring device for a liquid-dielectric transformer enclosed in a hermetically sealed tank. The device comprises at least one electromechanical safety contactor whose switching is intended to cause the instantaneous opening of a transformer circuit breaker. The device includes a circuit for detecting the switching of the electromechanical contactor by indirect measurement of the current flowing through the contactor, and an electronic measuring unit connected to the detection circuit and configured to trace the occurrence of a switching event. The invention also relates to the use of such a device.

The utility model relates to the technical field of water level switches, and discloses a Hall type water level switch, which comprises a water level switch body and is characterized in that a floating ball in sliding fit with the water level switch body is arranged on the water level switch body; a plurality of magnets are arranged in the floating ball; a circuit board is arranged in the water level switch body; a Hall chip U1 is arranged on the circuit board; a VCC pin of the Hall chip U1 is connected with a capacitor C; a GND pin of the Hall chip U1 is grounded and forms a first wire end; the OUT pin of the Hall chip U1 is connected with a resistor R; the other end of R forms a second wire end; the first wire end and the second wire end are used for providing signal transmission for the Hall chip U1; according to the utility model, the Hall proximity switch can be simplified from an original three-wire wiring mode to a two-wire wiring mode, so that the requirement of an electronic product can be better met, and the trouble that the Hall switch can be accessed only by modifying a circuit is avoided.

A double-floating-ball gas relay for a transformer belongs to the technical field of relays, is installed on an oil pipeline of a main connecting pipe of the transformer, oil flows in the oil pipeline, and further comprises an upper shell, a probe, a support, an upper floater shaft, an upper floater swing arm, an upper floater, an upper floater magnet frame, a limiting block, a limiting seat, a first fixing frame, a volume contact, a lower limit and a heavy hammer. The probe is arranged below the upper shell; the top end of the support is connected with the bottom end of the upper shell. The equipment has highly-intelligent and reliable monitoring and alarming functions, can sensitively sense various abnormal conditions in actual operation, sends out alarming signals through different triggering mechanisms under the abnormal conditions of internal gas accumulation, oil flow surge, oil leakage and the like, and takes corresponding measures in time, so that the working efficiency is improved, and the working efficiency is improved. And the normal working performance and reliability of the gas relay are ensured.

The utility model discloses a kind of anti dry-burning protection device groups for controlling heating device, it includes: float mechanism and magnetic induction controller. Float mechanism is used to detect liquid level, float mechanism is provided with the magnetic drive portion that position changes with liquid level height, and the magnetic drive portion is magnet. Magnetic induction controller is used to connect with heating device, and is used to control the opening and closing of heating device, and magnetic induction controller can be triggered by magnetic drive portion to change the state controlled by it. Among them, when the liquid level detected by float mechanism changes to below predetermined position, the magnetic drive portion changes position and triggers magnetic induction controller to enter the state of closing heating device. The above-mentioned anti dry-burning protection device group uses float mechanism to cooperate with magnetic trigger controller to realize anti dry-burning protection, and good reliability, installation setting is flexible.