45 results about "Float switch" patented technology

The invention discloses a water inlet detection method of clothes washing equipment, a medium and the clothes washing equipment, and the clothes washing equipment comprises a water level detection sensor which is arranged at a designated position in a washing barrel and is used for detecting the water level frequency corresponding to the water level in the washing barrel; the float switch is arranged at a specified height in the washing bucket and is used for generating a corresponding water level indication signal according to whether the water level in the bucket reaches the specified height or not; the method comprises the following steps: when the clothes washing equipment controls a water inlet module to feed water, obtaining water inlet time, a water level frequency corresponding to a current water level in a barrel and a water level indication signal; when the water inlet time reaches the first time, judging whether the water level frequency reaches the first frequency or not; and when the water level frequency does not reach the first frequency, determining the water inlet abnormity type of the clothes washing equipment according to the water level indication signal and the change state of the water level frequency in at least the first time, thereby accurately and rapidly determining the reason of water inlet abnormity, and facilitating a user to know the current state of the clothes washing equipment.

1. Name of the product in this design: Submersible pump (Self-developed multi-stage submersible pump No. 263). 2. Purpose of this design: This design is used for conveying liquids. 3. The key design feature of this product is its shape. 4. The picture or photo that best illustrates the key design points: Design 2 3D diagram 1. 5. Design 2 is designated as the basic design. 6. Other components that need to be explained: Component 1 of Design 1 is the main body of the submersible pump, and Component 2 of Design 1 is the float switch.

The invention provides a water quality sampling device, and relates to the technical field of water quality sampling. The water quality sampling device comprises a sampling barrel, a telescopic frame, a piston, an elastic rope and a traction rope, the sampling barrel is provided with a limiting disc, a central barrel and a water inlet; the limiting disc is located at the top of the sampling barrel and provided with a limiting hole and a first elastic hole, the center barrel is located at the central axis of the sampling barrel and provided with a clamping groove, and the water inlet is located at the bottom of the sampling barrel; the telescopic frame comprises an annular disc, a limiting column, a supporting plate, a connecting column and a clamping piece. The sampling barrel is sleeved with the annular disc, a second elastic hole is formed in the annular disc, the two ends of the limiting column are connected with the annular disc and the supporting plate respectively and matched with the limiting hole, the two ends of the connecting column are connected with the supporting plate and the piston respectively and located on the inner side of the sampling barrel, and the clamping piece is connected with the supporting plate. The water quality sampling device solves the technical problems that according to an existing water quality sampling device, the sampling depth is inconvenient to adjust, and a rope telescopic device in a floating ball switch is prone to damage.

The invention provides a karst bank slope rock mass corrosion simulation experiment device and method in a water pumping and storage engineering environment, and relates to geotechnical engineering.The karst bank slope rock mass corrosion simulation experiment device comprises a reaction box, a rock mass corrosion simulation experiment device and a rock mass corrosion simulation experiment device, the corrosion liquid circulating box is connected with the bottom of the reaction box through a backflow pipeline; the corrosion liquid pumping and storing adjusting system and the corrosion liquid circulating box are connected with the reaction box, the floating ball switch is arranged in the reaction box and connected with the suction pump, the floating ball switch controls the suction pump to be started and stopped according to the height of the water level in the reaction box, the second adjusting valve, the second flow meter and the control valve are arranged on the backflow pipeline, and the PLC controls the suction pump and the control valve to work; a temperature control system; a pressure control system; and the pH automatic control system is used for controlling the peristaltic pump to work according to the pH value in the corrosion liquid circulating box. The device has the beneficial effects that the actual engineering environment is accurately simulated, and the rock mass corrosion characteristics under the coupling action of multiple factors such as complex water level fluctuation and water pressure change in the water pumping and storage engineering are researched.

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

This invention discloses an elevator car drainage device and method. A water trough is provided in the floor of the elevator car, and a water collection device connected to the trough is located at the bottom of the elevator car. A drain outlet and a switch bracket for draining water from the water collection device are provided in the elevator shaft pit. The elevator car automatically drains water when it reaches the bottom floor. This invention has a simple structure and low cost. The car floor is designed with a certain slope to effectively and automatically collect water from the car floor. The design of the float switch, switch bracket, switch valve, and switch linkage enables rapid, intelligent, and automatic drainage without hindering elevator operation, eliminating the need for additional waterproofing measures for the elevator and surrounding equipment.

The utility model relates to the technical field of floating ball switches for water pumps, in particular to a vertical floating ball switch, which comprises a shell in which a microswitch and a toggle piece are arranged; the floating rod is in sliding connection with the shell, one end of the floating rod is located in the shell, a floating ball is arranged at the other end of the floating rod, and the floating ball can slide up and down along the floating rod; a first magnetic piece is arranged on the shifting piece, a magnetic assembly is arranged at the end, located on the shell, of the floating rod, and the first magnetic piece drives the shifting piece to push a button of the microswitch under the action of the magnetic assembly.

This invention relates to the field of fluid transport control technology and discloses a water pump anti-siphon device. The device includes an inverted U-shaped main pipeline, with a through-wall pump installed at the input end of the pipeline. A multi-functional valve is installed on the pipeline, including a vacuum tank. The vacuum tank's bottom sealing flange is fixedly installed on the top of the inverted U-shaped main pipeline, and a main cavity is provided inside the vacuum tank. This anti-siphon device eliminates the need for a high-power motor and large-size impeller for the through-wall pump under low head and high flow conditions, reducing equipment procurement and operating costs. It employs an oil-lubricated rotary vane vacuum pump to create a vacuum, and automatically detects the liquid level and controls the vacuum pump's start and stop using a level sensor and float switch. This allows the medium to smoothly pass over the highest point of the inverted U-shaped pipeline, thus enabling a small-power pump to meet start-up and normal operation requirements, avoiding energy waste and equipment redundancy caused by using a large motor for a small load.

1. Name of the product in this design: Float Switch (HB18). 2. Purpose of this design: To be installed in a water tank to control the water level. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention provides an air conditioner indoor unit which is provided with a float switch, the air conditioner indoor unit comprises a surrounding plate, the surrounding plate surrounds the air conditioner indoor unit, the surrounding plate is provided with an access hole, and the access hole and the float switch are oppositely arranged; the coaming further comprises a maintenance plate which detachably covers the maintenance opening. Under the condition that the overhauling plate is separated from the surrounding plate, the floater switch is maintained through the overhauling opening, the arrangement position of the overhauling opening is opposite to the floater switch, the overhauling opening is covered with the overhauling plate, when the floater switch needs to be maintained, the overhauling plate is disassembled, and a maintainer can observe the floater switch through the overhauling opening, so that the maintenance efficiency is improved. And the float switch is disassembled and maintained through the access hole, and the air conditioner indoor unit does not need to be disassembled, so that the maintenance difficulty is reduced, and the maintenance time is shortened.

Disclosed in the present application are a floating safety control method and apparatus, and a device, a medium and an aerial work platform. The floating safety control method comprises: acquiring a first tilt angle, wherein the first tilt angle is a tilt angle of a vehicle frame when a vehicle has not fallen into a pit; acquiring a second tilt angle, wherein the second tilt angle is a tilt angle of the vehicle frame after the vehicle falls into the pit; acquiring a first change angle, wherein the first change angle is the difference between the first tilt angle and the second tilt angle; and on the basis of the first change angle, executing a floating action or executing a safety control action, wherein the floating action is used for controlling, after the vehicle falls into the pit, a single-side floating oil cylinder corresponding to a triggered corresponding single-side floating switch to act, and the safety control action is used for restricting the floating oil cylinder from acting. By means of the present application, safety control for the action of a floating oil cylinder by an aerial work platform can be realized, thereby facilitating the safe work and stable operation of the aerial work platform.

A float switch device is characterized by a float switch mounting assembly, an adjustment member, and an adjustable lead screw. The float switch mounting assembly includes a guide rail and includes top and bottom mounts / supports having top and bottom mount / support lead screw openings and mounting and supporting the guide rail. The float switch mounting assembly includes an adjustable float switch mounting member configured to move relative to the guide rail. The adjustable float switch mounting member has a leadscrew opening with an internal thread, and also has a coupling member configured to couple to a portion of the float switch. The adjustable lead screw has a top lead screw end that rotates the adjustable lead screw to move the adjustable floating mounting member and adjust the height / position of the adjustable floating mounting member between the top and bottom mounts / supports.

This utility model relates to a float switch anti-electric shock maintenance device, including a first sleeve and a second sleeve. The second sleeve is arranged parallel to the first sleeve and can slide along the axial direction of the first sleeve. A first movable rod that can be pulled and adjusted is installed at the end of the first sleeve, and a second movable rod that can be pulled and adjusted is installed at the end of the second sleeve. A fixed clamp is vertically fixed to the end of the first movable rod, and a movable clamp is vertically fixed to the end of the second movable rod. The fixed clamp and the movable clamp cooperate to clamp the float switch cable. This utility model can be inserted into the pit and, by clamping the cable, can control the float to rise or fall, thereby simulating the start or stop of the float switch. It is easy to operate and eliminates the need for bracket disassembly and assembly. Moreover, during maintenance, the float is held by the fixed clamp and the movable clamp, so the operator does not directly touch the float, greatly reducing the risk of electric shock.

This invention provides a bulldozer electronic control handle, a bulldozer, and a method, relating to the field of construction machinery. Addressing the problem of accidental activation caused by independently set floating switches, this invention places a floating button on the handle, employing a floating, non-mechanical locking method. This requires two conditions to be met simultaneously: pressing the floating button and pushing the handle forward to a certain range to trigger the floating mode. This increases operational safety and accuracy, reducing instability and safety hazards caused by misoperation.

The utility model discloses a kind of metal corrugated sealed oil storage tank oil leakage detection structures, it is related to transformer corrugated oil storage tank technical field, including oil collecting box, the upper surface one end of oil collecting box is connected with oil collecting pipe, the lower surface of oil collecting box and the oil collecting pipe corresponding position intercommunication connection have oil discharge pipe, the lower end of oil discharge pipe intercommunication connection has output pipeline, the upper surface other end of oil collecting box is equipped with float switch, the middle position of the front and back sidewall of oil collecting box is equipped with detection window, the upper of oil collecting box is equipped with core lower end plate, the lower surface of core lower end plate and the oil collecting box corresponding position are equipped with connecting seat, the oil collecting pipe is fixedly connected with the connecting seat by thread, the upper surface of core lower end plate is equipped with oil collecting groove, the oil collecting groove is connected with the connecting seat, oil leakage detection sensitivity is high, trace leakage oil is discovered in time, avoid transformer oil pollution oil storage cabinet frame body, transformer and surrounding environment.

The invention discloses an intelligent panel type fire-fighting voltage-stabilizing control system which comprises a power supply loop, a main loop, a secondary control loop, a voltage-stabilizing pump controller and a signal acquisition module which are arranged in a fire-fighting cabinet, the power supply loop adopts a three-phase four-wire system power supply inlet wire, the main loop comprises two groups of alternating current contactors, a thermal relay and a water pump motor which are sequentially connected in series, the secondary control loop comprises a controller fuse, an intermediate relay and an indicator lamp, and the stabilized voltage pump controller is provided with a MicroSD card to record working state data. The signal acquisition module comprises a pipe network pressure transmitter, a water tank liquid level transmitter and a float switch; by integrating the intelligent control module and optimizing the circuit structure, the problems of low integration level, poor automation degree and insufficient reliability of the existing fire-fighting voltage-stabilizing control system are solved, and the fire-fighting voltage-stabilizing control system has the advantages of high flexibility, complete protection functions, high intelligence degree, strong communication capability, high integration level, safety, energy conservation and high precision; the method can be widely applied to fire-fighting water supply pressure-stabilizing control scenes of various buildings.

The vacuum protection system is used for the glass cover plate engraving and milling workshop, a power distribution cabinet, a CNC engraving and milling machine table, a pressure storage tank and a water cooling tower are arranged in the workshop, the pressure storage tank and the water cooling tower are connected through a circulating pipeline, a water supply circulating pump and a vacuum pump, and the water cooling tower is connected with a pure water supplementing pipeline. The vacuum protection system comprises a floating ball switch installed in the water cooling tower, a first negative pressure meter installed on the pressure storage tank and an alarm element in electric signal connection with the power distribution cabinet, the power distribution cabinet is provided with an intermediate relay and a frequency converter, and the intermediate relay is provided with a plurality of switches. Wherein the circulating pipeline comprises a water return pipeline and a water supply pipeline, the water return pipeline is connected with the pressure storage tank through the vacuum pump, the water supply pipeline is connected with the bottom of the water cooling tower and the vacuum pump, the water supply circulating pump is arranged on the water supply pipeline, and the float switch, the first negative pressure meter, the power distribution cabinet and the electromagnetic valve are in electric signal connection, so that the overall vacuum degree stability of the workshop can be maintained.

This utility model relates to the field of PVDF float switch technology, and more particularly to a PVDF float switch, including a limiting frame and a PVDF float switch body, and further including: a first power box, with a connecting column rotatably connected between the top plate and the bottom plate of the first power box; an orientation adjustment component, which is used to drive the connecting column to rotate; by rotating the protective screw tube, the PVDF float switch body is driven to move downward, and the depth of the PVDF float switch body inserted into the liquid storage container is adjusted according to the needs. When the water level rises, the PVDF float switch body drives the protective screw tube and the limiting block to rotate, and the limiting frame limits the limiting block to avoid the PVDF float switch body from colliding with the structural components inside the liquid storage container. This solves the problem that the existing PVDF float switch body is prone to colliding with other structural components inside the liquid storage container, and cannot accurately reflect the liquid level inside the liquid storage container.

The invention discloses an automatic sewage disposal device of a salt dissolving tank baffling groove filter screen and a control method. The device comprises a salt dissolving tank, a filter screen plate, a lifting assembly, a translation assembly and a controller. The liquid level is detected through the magnetic float switch, a conventional / emergency cleaning program is triggered, the winch pulls the filter screen plate to be lifted to be separated from bottom magnetic attraction, and after the electromagnetic attraction plate adsorbs and fixes the filter screen plate, the rotating motor drives the lead screw to drive the filter screen plate to transversely move to cooperate with high-pressure reverse flushing of the water inlet pipe; after cleaning, the filter screen plate is reset, magnetically attracted and fixed, and the controller synchronously records parameters and monitors faults. According to the invention, automatic and precise decontamination is realized, continuous production is guaranteed, decontamination is thorough, operation is safe, different working conditions are adapted, operation and maintenance are convenient, and the problems of low decontamination efficiency, poor safety and the like in the prior art are effectively solved.

The utility model provides an automatic switching valve which is simple in structure. The automatic switching valve comprises a lower water outlet seat, an upper water outlet seat and a floating switching piece. The lower water outlet seat is provided with a water inlet and a lower water outlet, and the upper water outlet seat is provided with an upper water outlet. The upper water outlet seat is installed on the top of the lower water outlet seat, a water inlet channel and a switching cavity are formed between the upper water outlet seat and the lower water outlet seat, and the lower water outlet and the upper water outlet are communicated with the water inlet through the switching cavity and the water inlet channel respectively. The floating switching piece is arranged in the switching cavity in a floating mode, an upper blocking part is arranged on the top of the floating switching piece, a lower blocking part is arranged at the bottom of the floating switching piece, the floating switching piece is provided with a swing part facing one side of the communicating hole, and a self-locking structure is arranged between the swing part and the switching cavity. The main body part of the automatic switching valve provided by the utility model consists of the lower water outlet seat and the upper water outlet seat, so that the automatic switching valve has the advantages of simple structure and few components, is easy to form and assemble, can be small in overall size, and avoids occupying installation space.

The utility model provides a large-flow anti-leakage appliance of a water-replenishing-free type gas drainer, and relates to the technical field of electric gas pipeline drainage. According to the large-flow leakage-proof appliance of the water-replenishing-free type gas drainer, a gas condensate water inlet is fixed to a gas drainer barrel, a partition plate b is fixed into a leakage-proof barrel, a drainage pipe is fixed to the leakage-proof barrel, an overflow pipe is fixed to the drainage pipe, a water tank is fixed to the lower portion of the overflow pipe, a water pump is fixed to the upper portion of the water tank, and the water pump is in line connection with a control circuit. The control circuit line is connected with a float switch, and the float switch is fixedly provided with a gas drainer barrel. The float switch is matched with the control circuit according to the liquid level condition in the gas drainer barrel, so that the water pump actively feeds water into the gas drainer barrel from the water tank, finally, the set water seal pressure is reached again, the machine can operate normally, waiting for maintenance is not needed, and the working efficiency is improved.

The utility model relates to the technical field of floating ball switches, and discloses a throw-in type sheath line floating ball switch, which comprises a control assembly, one end of the control assembly is provided with a floating ball, the outer wall of the floating ball is provided with an adjusting assembly, the adjusting assembly is used for adjusting the balance weight of the floating ball, and the adjusting assembly comprises a weight box. The weight box is connected to the outer wall of the floating ball in a sliding mode, a first connecting plate is fixedly connected to the interior of the weight box, a supporting shaft is fixedly connected to the top of the first connecting plate, and a disassembling assembly is arranged on the outer wall of the weight box and used for disassembling the weight box. According to the utility model, the counterweight block is placed in the counterweight box, so that the supporting shaft is extruded to generate elastic deformation, and the connecting shaft is further enabled to slide in the sliding shaft, thereby realizing the effect of rapidly increasing the counterweight of equipment, and solving the problem that the counterweight cannot be flexibly adjusted in the traditional throw-in type sheathed wire floating ball switch. And the application efficiency of the liquid level detection equipment in diversified working scenes is improved.

The application relates to a use method of a guide valve with an automatic closing function for a fire-fighting pipeline, and belongs to the technical field of fluid conveying devices. The guide valve with the automatic closing function comprises a valve body, a water inlet is arranged at the top of the valve body, water outlets are arranged at the two ends of the bottom of the valve body, a floating switch assembly is arranged in the valve body, the floating switch assembly comprises a float ball, a valve rod, a valve seat and a valve core, one end of the valve rod is connected with the float ball, the other end of the valve rod penetrates through the valve body and is connected with the middle part of the valve seat, the valve core is arranged on the two ends of the valve seat, the valve core is arranged in the corresponding water outlet, in a standby state, there is residual liquid in the valve body, and the valve core is automatically opened under the action of gravity; in a working state, the valve body is filled with liquid, the float ball is floated, the float ball is connected with the valve core through the valve rod, and the water outlet is blocked. Beneficial effects: the guide valve with the automatic closing function can realize all-weather and all-season normal standby of the fire-fighting vertical pipe, and can also realize the purpose of low-point liquid drainage for antifreezing in winter.

This invention proposes an Internet of Things (IoT) control system for landscaping irrigation, comprising: a digital input unit (DIP) with a flow switch, a float switch, and a digital input module; an analog input unit (AIP) with a humidity sensor, a water meter, and an analog input module; a programmable control unit (PCU) with a programmable control module; the DIP and analog input units are electrically connected to the PCU; a relay isolation module is electrically connected to the PCU and the electrical equipment; and a 4G module, through which the PCU connects to external mobile terminals and PCs. This invention collects real-time information on the pump's operating status, irrigation water volume, and humidity of the target irrigated area during irrigation, transmitting this information to mobile terminals and PCs via the PCU and 4G modules for remote monitoring. This facilitates timely detection and resolution of problems in the irrigation system by staff.

The application relates to the technical field of aviation equipment, and discloses a buffer support for an aerial survey unmanned aerial vehicle, which comprises a support mounting base and a supporting arm, the supporting arm is symmetrically arranged on the two sides of the support mounting base, a supporting leg float plate is arranged at the bottom of the supporting arm, a conical supporting leg is arranged on the bottom surface of the end of the supporting leg float plate, a water floating switch is arranged at the front end of the supporting leg float plate, the water floating switch comprises a water floating plate which is slidably arranged at the bottom of the supporting leg float plate, a counterweight is integrally arranged above the water floating plate, wing plates are slidably arranged on the two sides of the supporting leg float plate, the counterweight is in transmission connection with the wing plates, and the wing plates move outward when the supporting leg float plate moves upwards. When the scheme contacts with the water surface, the water floating plate moves upwards under the influence of water pressure, the integrally arranged counterweight moves upwards synchronously, drives the two wing plates to slide outward and expand, increases the contact area with the water surface, provides additional buoyancy to support the lens module, and stabilizes the overall gravity center.

A float switch assembly for use in actuating a switch to operate a pump to control the level of a fluid in a tank. A float switch assembly for operating a pump to control the level of a fluid in a tank based in part on the angle of the float switch caused by the varying fluid level. A system for controlling a level of a fluid in a tank, the system including a pump fluidly coupled to the tank and configured to pump the fluid from the tank to lower the level of the fluid in the tank.

The invention belongs to the technical field of vacuumizing equipment, and particularly relates to a high-reliability vacuum system which comprises a vacuum tank and a butt joint pipe used for being connected with a water pump. The multi-stage protection device further comprises a multi-stage protection mechanism, the multi-stage protection mechanism is installed in the vacuum tank, and the multi-stage protection mechanism controls starting and stopping of the vacuum pump by monitoring the liquid level in the vacuum tank in real time. By arranging the multi-stage protection mechanism, when the vacuum system and the water pump are used in a combined mode, control over the liquid level height is achieved through the liquid level sensor, the rubber ball and the float switch in sequence, and in the actual operation process, the multi-stage protection mechanism enables medium liquid level control means to be diversified; and the probability that the medium enters the vacuum pump is effectively reduced.

The invention discloses an intelligent water pump automatic control box which comprises a control box body and a water pump, a three-phase alternating-current motor is arranged at the upper end of the water pump, and a control circuit system used for controlling the three-phase alternating-current motor at the upper end of the water pump is arranged in the control box body. And the control circuit system comprises a power supply access and control module, an alternating current contact module, a leakage protection module, a motor protection module and a water level control module. Accurate water level control is achieved by introducing the floating ball switch, and the water pump is automatically started and stopped according to real-time changes of the water level in the pool or the water tank. Meanwhile, various protection elements such as the circuit breaker, the leakage protector and the motor protector are integrated, comprehensive protection is provided for the circuit and the motor, and it is ensured that the water pump operates in a safe and reliable environment. In addition, the circuit structure is optimized, wiring is simplified, the installation and maintenance cost is reduced, the overall performance and stability of the water pump control system are improved, and the requirements of different fields for water pump intelligent control are met.

An external drain pan water removal system includes a drain pan that is positionable beneath an attic-mounted air handler for capturing water overflowing from the air handler. A pump assembly is positioned within the drain pan and includes a main body that houses an electric water pump and a float switch. A drain line coupler connects to the condensate drain of the air handler, and an elongated hose connects the pump assembly to the drain line coupler. An overflow detection switch is located within the pump assembly. The overflow switch and pump are each connected to the auxiliary panel of the air handler. The pump is selectively activated by the float switch based on the water level in the pan, and the overflow switch instructs the auxiliary panel to disable the air handler upon detecting the water level of the pan has exceeded a predetermined threshold.

The utility model belongs to the technical field of floating ball switch detection, and particularly relates to a differential pressure sensor quick release structure and floating ball switch detection equipment, the differential pressure sensor quick release structure comprises a differential pressure sensor, a mounting seat, a first quick release connector, a second quick release connector, a third quick release connector and a fourth quick release connector; the mounting seat is provided with a first channel and a second channel which are not communicated, the first channel is communicated with the bottom of the sampling tube, and the second channel is communicated with the top of the sampling tube; the first quick-release connector is mounted on the mounting seat and is communicated with the first channel; the second quick-release connector is mounted on the mounting seat and is communicated with the second channel; the third quick-release connector and the fourth quick-release connector are connected with the two ends of the differential pressure sensor respectively. The first quick-release connector is used for being matched with the third quick-release connector in an inserted mode. The second quick-release connector is used for being matched with the fourth quick-release connector in an inserted mode, the differential pressure sensor and the mounting base are connected in a quick-release mode, the dismounting mode of the differential pressure sensor is simple, and the dismounting efficiency is high.