138 results about "Float switch" patented technology

The invention discloses a hydropower station expansion tank water level prediction alarm method and system, belongs to the technical field of hydropower station automatic control, and aims to solve the technical problems of limited monitoring points, high false alarm rate, response delay and the like of a traditional hydropower station expansion tank water level alarm system. According to the invention, the multi-mode sensing network is constructed, and data of the pressure sensor array, the radar level meter and the float switch group are fused, so that space continuous monitoring is realized; a three-level sensing architecture is adopted, heterogeneous data is subjected to normalization processing, and dimensional differences are eliminated; the LSTM network is used for liquid level prediction, and a self-adaptive window adjustment mechanism is combined, so that the prediction flexibility and accuracy are improved; a DQN algorithm is adopted to optimize a control strategy, fine adjustment of the liquid level is achieved by adjusting the opening degree of the valve, the accuracy, timeliness and intelligent level of water level monitoring and alarming of the expansion water tank of the hydropower station are remarkably improved, the stability of the liquid level of the water tank is ensured, the system operation efficiency is optimized, the manual intervention requirement is reduced, and safety is improved.

Provided herein are embodiments of a flood prevention system. The flood prevention system may include a water line, a sewer line, and at least one floating switch sensor. The water line and sewer line may be connected to a plumbing fixture. The floating switch sensor may be installed within the sewer line and be connected to a solenoid valve.

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.

The utility model relates to a stream duckbilled floating ball switch device, and belongs to the field of switch devices, the stream duckbilled floating ball switch device comprises a duckbilled floating ball switch and a protection box used for arranging the duckbilled floating ball switch, and the protection box is provided with a floating cavity used for allowing the duckbilled floating ball switch to float up and down; the protection box comprises a protection cover and a mounting plate used for covering an opening of the protection cover, and water permeable through holes are evenly distributed in the protection cover. The protective cover comprises a first side plate which is vertically arranged on the end face of the mounting plate, and the first side plate is provided with a mounting seat for mounting the duckbilled float switch. The duckbilled floating ball switch has the effect of reducing the probability that the duckbilled floating ball switch is damaged by impact in the use process.

The utility model provides an air conditioner water pump assembly, an air conditioner indoor unit and an air conditioner. The air conditioner water pump assembly comprises a base, a pump body, a float switch and a wiring part. A fixing part is arranged on the base; the pump body is detachably connected with the base and comprises a pump body support, and the pump body support is connected with the fixing part in a clamped mode. The float switch is detachably connected with the base; the wiring part comprises a fixing rib, and the wiring part is fixedly connected with the base through the fixing rib; the air conditioner indoor unit comprises a water pan and an air conditioner water pump assembly. The water pump assembly is close to the side wall of the water pan. The air conditioner comprises an air conditioner indoor unit and a heat exchange system, and the heat exchange system is arranged in the air conditioner indoor unit. The utility model solves the problem that the float switch is easy to detect mistakenly.

A method, system, medium and product for analyzing oil leakage at an oil-filled cable terminal relate to the field of electrical digital data processing. In implementing this application, the detection system collects the temperature values ​​of each sensor based on the sensor array arranged longitudinally on the inner side of the closed structure of the oil-filled cable terminal, calculates the temperature difference sequence, and extracts the characteristic parameters of the temperature field in the closed structure. The detection system corrects the finite element simulation results in combination with the current ambient temperature and the current load current, and obtains the corresponding relationship between the oil leakage temperature under actual working conditions, thereby accurately reflecting the oil leakage situation under actual working conditions. This oil leakage analysis method based on the corresponding relationship between the temperature field characteristic parameters and the oil leakage temperature under actual working conditions avoids the limitations of traditional detection methods that rely solely on oil level gauges and float switches for detection, improves the perception ability of slow leakage and the accuracy of quantitative analysis, can timely and accurately discover oil leakage hazards, prevent accidents, and improve the accuracy and reliability of oil leakage detection.

The submersible pump comprises a pump head, a pump cover and a pump body, the pump cover and the pump body are arranged on the lower side of the pump head, the upper end of the pump cover is fixedly connected with a water outlet, the lower end of the pump body is upwards connected with a pump bottom in a sleeved mode, and the upper end of the pump cover is fixedly connected with a cable b. A controller is fixedly connected to the other end of the cable b, cables a are fixedly connected to the positions, close to the left side and the right side, of the lower end of the controller correspondingly, a plug and a float switch are arranged at the other ends of the two cables a correspondingly, a plurality of water inlets are formed in the outer wall of the pump bottom at equal intervals, and a fixing ring is connected to the outer portion of the pump bottom in a threaded mode; a filter screen a is fixedly connected to the lower end of the fixing ring, a filter screen b is fixedly connected to the position, located in the filter screen a, of the lower end of the fixing ring, and by installing the filter screen a and the filter screen b, impurities in water flowing to the pump bottom through the water inlet are doubly filtered, and normal rotation of the water suction disc cannot be affected.

The embodiment of the application provides a clothes dryer, comprising: a shell; a drum arranged in the shell; a water storage box, comprising a base water box; a drainage pump arranged in the base water box; a float switch fixed beside the drainage pump, comprising a floating state of a float ball and a falling state of the float ball; a controller connected with a timer, the drainage pump and the float switch respectively, the controller being configured to perform the following steps: when it is detected that the float switch is in the floating state of the float ball, the drainage pump is controlled to work and the timer is started; when it is detected that the float switch is switched from the floating state of the float ball to the falling state of the float ball, the timing duration of the timer and the drainage amount of the drainage pump are acquired; based on the drainage amount and the timing duration, the drainage rate of the drainage pump is calculated; based on the drainage rate and the to-be-drained amount, the residual drainage duration is determined; and the drainage pump is controlled to stop working after continuing to work for the residual drainage duration. The application can guarantee the drainage effect while eliminating the drainage noise.

The present invention discloses a floating control system for a metering pump system, relating to the technical field of floating mechanisms. The system comprises: a metering pump, a floating control valve, a floating mechanism, a boom functional valve, an actuator, and a control device. The metering pump, floating control valve, and floating mechanism are sequentially connected, and the metering pump, boom functional valve, and actuator are sequentially connected. The floating control valve includes a pressure reducing valve and a floating switching valve, and the boom functional valve includes a fixed differential relief valve and a proportional reversing valve. The fixed differential relief valve and the proportional reversing valve are arranged in parallel between the metering pump and the oil return tank. The floating switching valve and the fixed differential relief valve are connected via a feedback oil circuit, and a check valve is provided between the floating switching valve and the fixed differential relief valve. The actuator is connected to the feedback oil circuit via the proportional reversing valve. This system can provide constant pressure for the floating mechanism without affecting the steering output of the actuator.

The invention discloses an automatic dewatering and drainage device for a large-plane shallow foundation pit containing a weak permeable interlayer, which comprises drainage ditches including an annular drainage ditch and a linear drainage ditch, and a plash arranged at the intersection of the annular drainage ditch and the linear drainage ditch, the water seepage blind ditch is composed of a steel wire mesh, a steel reinforcement framework and gravel; the reinforcement cage is placed in the plash, the submersible pump is arranged at the bottom in the reinforcement cage, and the float switch water level controller is connected with the submersible pump and controls the submersible pump to be started and stopped so that water in the plash can be drained out of the plash. The annular drainage ditch and the linear drainage ditch are combined with the gridding layout of the plash, and then the submersible pump and the float switch water level controller are combined. Seepage water can be rapidly collected and drained, the drainage efficiency is improved by 40% or above, and the method is particularly suitable for the weak permeable interlayer geological condition of a large-plane shallow foundation pit.

The present invention provides a water level detection device, comprising: a chassis foam and a water receiving tray. The water level detection device includes: a water collecting cavity provided on the water receiving tray; a float switch provided inside the chassis foam and / or the water receiving tray, and the float switch communicates with the water collecting cavity; a detection component provided on the outer side of the water receiving tray away from the chassis foam; wherein, the float switch and the detection component are oppositely arranged. The embodiment of the present invention improves the sealing performance between the water receiving tray and the chassis foam.

The utility model belongs to the technical field of water pumps, and particularly provides a water pump device used for being arranged in a water tank, the water pump device comprises a water pump shell, a water pumping assembly, a first float switch and a second float switch, the bottom of the water pump shell is provided with a first water inlet hole and a second water inlet hole, and the water pump shell is further provided with a water outlet hole; the water pump shell is internally provided with a water level detection channel communicated with the first water inlet hole, the water level detection channel is used for detecting the water level of the water tank, the water pumping assembly is arranged in the water pump shell and communicated with the second water inlet hole and the water outlet hole, and the first float switch is electrically connected with the water pumping assembly and comprises a first float. The second float switch comprises a second float, the first float and the second float are both arranged in the water level detection channel, and the second float is located above the first float. The first floater and the second floater are integrated in the water pump shell, and the water pump device is installed in the water tank as a whole, so that the installation efficiency can be improved, and follow-up centralized maintenance is facilitated.

The tightness-adjustable fire-fighting ball valve comprises a base valve, a ball core, a ball rotating mechanism, a sealing valve seat and a floating transposition mechanism, the base valve is provided with a flowing channel allowing fluid to flow in and out, and the ball core is rotatably arranged at the flowing channel and keeps sealed with the base valve through the sealing valve seat; the rotating ball mechanism can drive the ball core to rotate to open or cut off a fluid channel, the floating transposition mechanism is installed on the base valve and can drive the sealing valve seat to be away from the ball core through the traction effect or drive the sealing valve seat to be close to the ball core through elastic force, sealing reliability can be guaranteed, and meanwhile flexible adjustment of sealing tightness is achieved. The problems that a traditional ball valve is fast in abrasion, short in service life, high in maintenance cost and the like are effectively solved, and the remarkable practical value and popularization significance are achieved.

The utility model discloses a vertical floating ball switch structure, which comprises a shell, and a trigger switch, a driving lever, a connecting rod mechanism, a suspender and a floating ball which are arranged on the shell, the driving lever is connected with the suspender, the suspender drives the driving lever to swing when doing reciprocating motion, and the driving lever controls the on-off operation of the trigger switch through the connecting rod mechanism. In order to ensure the force required by the driving lever to drive the trigger switch to act, the first magnet is arranged at the upper end of the lifting rod, and the second magnet opposite to the first magnet up and down is arranged on the inner top surface of the shell, so that by adopting the technical scheme, when the floating ball rises along with the water level, the second magnet is driven to be close to the first magnet; the buoyancy of the floating ball is compensated through the magnetic attraction force of the two magnets, so that the driving lever drives the trigger switch to act through the connecting rod mechanism, the length of the product driving lever can be effectively reduced through the structural design, the product size is reduced, meanwhile, the size of the floating ball is reduced, the structure is simple, and the cost is reduced.

The utility model discloses a refrigeration water tank for refrigeration air conditioning equipment, particularly relates to the technical field of refrigeration water tanks, and comprises a device main body, a floating switch component is arranged in the device main body, and the upper end and the lower end of the floating switch component extend to the outer sides of the upper end and the lower end of the device main body. According to the refrigeration water tank for the refrigeration air-conditioning equipment, the water level of circulating water can be monitored in real time through the floating assembly, the ventilation opening is gradually closed by increasing the water level, the injection amount of the circulating water can be guaranteed, the refrigeration water tank can be matched with the filter screen to filter the circulating water, and the circulating water is injected from the side edge through the water inlet pipe; the water outlet assembly is matched with the water guide plate to keep and guide impact force of injection of circulating water, so that water is injected in a spiral motion track, the refrigerating effect of the circulating water is more uniform, and the water outlet assembly is matched with the floating assembly to automatically open the water outlet after the water outlet assembly reaches a fixed water level. The refrigeration effect of the water tank on circulating water can be improved while the automation of the device is improved.

The invention belongs to the field of liquid level measurement, and relates to a water-turbine generator set top cover water level monitoring method and system, and the method comprises the following steps: S1, obtaining the water level information of a float switch, the water level information of a first liquid level transmitter and the water level information of a second liquid level transmitter; s2, obtaining a first liquid level transmitter measurement value and a second liquid level transmitter measurement value; s3, if the judgment result is no, starting and stopping control over the drainage pump is carried out according to the first liquid level transmitter measurement value and the second liquid level transmitter measurement value; if the judgment result is yes, the water level switching value of the float switch is obtained, and the water level switching value of the float switch and the measured value of the first liquid level transmitter or the water level switching value of the float switch and the measured value of the second liquid level transmitter are selected to conduct start-stop control over the drainage pump. Through the float switch and the two liquid level transmitters, two-out-of-three participates in starting and stopping control of the drainage pump, and the problems that existing top cover water level monitoring is low in reliability and accuracy are solved.

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 relates to the technical field of float switches, in particular to a liquid level float switch and a submersible pump. The liquid level adjusting mechanism is in sliding connection with the frame body component, a first positioning structure is arranged between the frame body component and the liquid level adjusting mechanism, and the first positioning structure is used for limiting the liquid level adjusting mechanism at a certain height; the connecting rod mechanism comprises a guide part and a driving part which are connected with each other; the first switch is matched with the driving part; the floating ball is located below the liquid level adjusting mechanism, and the floating ball is movably connected with the guide part; the lower stroke limiting piece is arranged on the guide part and located below the floating ball; wherein a mechanical triggering mechanism is arranged between the floating ball and the liquid level adjusting mechanism, and when the liquid level rises, the floating ball and the guide part are locked; and when the liquid level drops, the floating ball slides downwards, the floating ball is separated from the mechanical triggering mechanism, and the floating ball and the guide part are unlocked.

The utility model provides an air conditioner indoor unit, which is provided with a float switch, and comprises a coaming surrounding the air conditioner indoor unit, the coaming is provided with an access hole, and the access hole is arranged opposite to the float switch; 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.

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 utility model relates to the technical field of liquid level switches, in particular to a liquid level switch with high accuracy. The liquid level switch with high accuracy rate provided by the utility model solves the technical problem that a floating ball type liquid level switch in the prior art is easy to operate mistakenly. A liquid level switch with high accuracy comprises a support, the support is provided with a switch body, the support is horizontally arranged, the support is further provided with at least three float switches, the at least three float switches are evenly distributed on the periphery of the support, and the switch body is triggered by the float switches; the at least three float switches are arranged and are connected in series, and the switch main body can be triggered only after all the float switches are triggered, so that when the liquid level is in an inclined state or in a non-static state, even if part of the float switches are triggered, the switch main body cannot be triggered; therefore, the switch main body is not easy to operate mistakenly.

The utility model discloses an adsorption mechanism for a labeling machine, which comprises two rigid mounting plates, a horizontal labeling telescopic cylinder is fixed between the two rigid mounting plates, one of the rigid mounting plates is provided with at least one linear bearing, a horizontal telescopic guide shaft is arranged in the linear bearing, and the horizontal telescopic guide shaft is connected with the horizontal telescopic cylinder. The horizontal telescopic guide shaft is rigidly connected with the swing arm fixing plate; the head of a telescopic rod of the horizontal labeling telescopic cylinder is rigidly connected with one end of a floating switch, and the other end of the floating switch is rigidly mounted on the swing arm fixing plate; a swing arm labeling cylinder is fixed below the horizontal telescopic guide shaft; a swing arm rotating bearing seat is fixed at one end of the swing arm fixing plate, and a swing arm is fixedly arranged on the swing arm rotating bearing seat; one end of the swing arm is fixed to the swing arm labeling air cylinder, the other end of the swing arm is provided with a label suction head, and a label in-place detection and labeling completion detection switch is arranged at the position, right opposite to the label suction head, of the swing arm. The adsorption mechanism for the labeling machine is simple in structure and small in occupied space.

An ozone backflow arrester system includes a reservoir positioned between an ozone generator and a venturi injector or bubbler at the bottom of a water tank. The reservoir includes a float switch configured to detect a volume of backed up fluid in the system. The float switch is able to communicate a signal to a first three-way valve proximal to the reservoir or a second three-way valve distal to the reservoir to block gas or liquid flow through the system. Either three-way valve is able to vent backed up fluid or incoming gas into the surrounding environment through a vent. The float switch is able to work in conjunction with a vacuum switch connected proximate to the venturi injector or an impedance sensor within the reservoir.

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 invention provides a water level monitoring device and a photovoltaic tracking support flood self-protection system and method.The water level monitoring device is connected with a preset control box of a photovoltaic tracking support and comprises a float switch and a data processing module, a float of the float switch is arranged on the photovoltaic tracking support, and the data processing module is electrically connected with the float switch; when the floater ascends to a preset height, the inductive switch of the floater switch is triggered to be closed, and the data processing module sends a signal to the control box; when the floater descends to be smaller than the preset height, the inductive switch is triggered to be switched off, and the data processing module does not send signals; the data processing module sends a signal to the control box to control the operation mode of the photovoltaic tracking support to be switched from the sun tracking mode to the flood protection mode. The water level of a photovoltaic power station project site is monitored by means of the float switch, the photovoltaic power station flood self-protection system is convenient to arrange and high in safety, the monitoring result is stable and reliable, and cost reduction and efficiency improvement of enterprises are facilitated.

This invention provides a control method, control device, and air conditioner for air conditioning. A float switch is provided within a gas-liquid separator. The control method includes: acquiring the magnetic field strength of the float switch within the gas-liquid separator; determining that the magnetic field strength meets a first preset condition, then controlling and adjusting the refrigerant flow rate entering the gas-liquid separator according to the range of the magnetic field strength, and acquiring the flow pattern of the refrigerant flowing out of the gas-liquid separator; and controlling and adjusting the operating state of the compressor according to the refrigerant flow pattern meeting a second preset condition. This invention provides a control method, control device, and air conditioner for air conditioning to overcome the deficiencies in the prior art, achieving the following technical effects: avoiding the risk of liquid refrigerant flowing into the compressor due to excessively high liquid refrigerant levels, further reducing or even avoiding the occurrence of liquid slugging in the compressor, and achieving precise and targeted adjustment.

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.