205 results about "Water monitor" patented technology

The invention relates to a computer vision technique based method and a system for detecting and extinguishing a fire disaster intelligently, which belong to the technical field of fire monitoring and self-extinguishing. The method comprises the following steps: (1) using a sub-station control module to perform the fire monitoring; (2) under the condition that flame exists, estimating the spatial position of the flame through a binocular parallax technique; (3) according to a fire monitor open rule, determining an opened fire water monitor; (4) obtaining the position of the tail end of an ejecting water column of the fire monitor, namely the position of a water-drop point, by using the computer vision technique or an image processing technique; (5) adjusting the fire monitor according to the relative positions of the water-drop point and the flame to achieve the closed-loop control to the fire monitor so as to perform extinguishing; and (6) determining that the extinguishing is finished according to monitored images, and then closing the fire monitor. The method and the system can achieve the real-time monitoring and the self-extinguishing of an outdoor large space fire disaster.

The invention relates to a fire-fighting robot facing a complex ground environment. The fire-fighting robot includes a fire-fighting robot device, a controlling table, a fire-fighting water monitor, afire detection assembly, a flame automatic targeting assembly, a water belt automatic shedding assembly, a self-sprinkler assembly and an environmental parameter collection module. The movement performance and safety in a complex ground fire-fighting environment can be ensured or improved; the loading capacity of the fire-fighting robot is improved; when dragging a fire fighting water hose in theback, the resistance capacity to tension, the obstacle climbing capacity, the stair climbing capacity and the capacity of passing an uneven unilateral bridge are improved; the fact that the fire-fighting robot can also move when the flame burns the fire-fighting robot body or a caterpillar band is ensured; the automatic shedding assembly of the fire-fighting water monitor connection mouth is improved so that the success self-preservation rate when the robot retreats is improved; the device of the fire-fighting robot of automatic searching for the flame and automatic controlling of collimationof the fire-fighting water monitor is added; so that fire-fighting efficiency and the degree of automation of the fire-fighting robot are improved.

The invention relates to an anti-explosion fire reconnaissance firefighting robot which comprises an anti-explosion fire reconnaissance firefighting robot movable base plate, a manipulation control box, an anti-explosion fire water monitor, an anti-explosion reconnaissance assembly, an anti-explosion road condition shooting assembly, an anti-explosion fire hose falling-off assembly and an anti-explosion self-spraying cooling assembly. The movement and safe properties of the fire reconnaissance firefighting robot under the environments of the complex ground and severe disasters are improved; the anti-explosion capacity and the waterproof property of the fire reconnaissance firefighting robot are improved; the loading capacity of the fire reconnaissance firefighting robot is improved; and the tensile capacity, the obstacle crossing ability, the stair climbing capacity and the capacity of passing of a 'unilateral bridge' with the left portion and the right portion being different in height during dragging of a fire hose from the rear portion are improved. It is ensured that when flames burn a fire reconnaissance firefighting robot body or a track, the fire reconnaissance firefightingrobot can still move; and the success self-protection rate during robot withdrawing is increased, the automation degree of the robot is increased, the application range of the fire reconnaissance firefighting robot is enlarged, and the practicability of the fire reconnaissance firefighting robot is improved.

The invention provides an intelligent remote-control fire-fighting robot. The intelligent remote-control fire-fighting robot comprises a vehicle body; crawler-type travelling mechanisms are installed on the two sides of the vehicle body, a water monitor returning table is installed at the upper end of the front portion of the vehicle body, and a returning connector is installed on the lower portion of the water monitor returning table; a direct-current returning motor is connected to the returning connector in a driven mode, a bent pipe is connected to the returning connector, and the upper end of the bent pipe is connected with a water monitor head through a joint ball head; the water monitor head is connected with a push rod motor through swinging relative to the returning table to achieve stretching out and drawing back, the lower end of the bent pipe is connected with a water monitor connecting pipe, and the water monitor connecting pipe is penetrated at the bottom in the vehicle body in a front-back mode and fixedly connected with the vehicle body; and a fire-fighting water bag connector being fixed to the rear end of the vehicle body is connected to the rear end of the water monitor connecting pipe, and a camera with a cloud table is installed in the middle of the top of the vehicle body. The intelligent remote-control fire-fighting robot has the beneficial effects that the fire-fighting robot has good environmental suitability and can quickly find a fire source under the thick smoke severe environment and quickly approach a target to conduct fire fighting.

The invention provides an automatic tracking and positioning fire water monitor and an automatic tracking and positioning jet flow fire-extinguishing method. The automatic tracking and positioning fire water monitor comprises a base, a support, a shell, a fire water monitor body, an infrared thermal imaging sensor, a processor, a water pump electric control valve, a horizontal stepping motor and a longitudinal stepping motor. The processor draws the coordinates of a thermal image in real time and judges the coordinates of the kindling point according to a preset temperature threshold value, and the thermal image is sent by the infrared thermal imaging sensor in real time. The fire water monitor body is positioned to the coordinates of the kindling point rapidly and tracks the coordinates of the kindling point in real time until the processor controls the water pump electric control valve to be opened and the fire water monitor body sprays water. The automatic tracking and positioning fire water monitor has the advantages of being scientific in design, rapid and accurate in positioning and capable of realizing movable fire tracking. The use method includes the steps of (1) clearing, (2) scanning, (3) judgment, (4) fire extinguishing, (5) water stop detection, (6) fire-extinguishing finishing and the like, and has the advantages of being simple, efficiency, capable of realizing movable fire tracking, complete in scanning coverage and capable of preventing detection omission.

The invention relates to a circulating water intelligent monitoring system based on the Internet of things. The circulating water intelligent monitoring system comprises at least one circulating water monitoring terminal subsystem, a cloud service platform and a control terminal, wherein the circulating water monitoring terminal subsystem and the control terminal are connected with the cloud service platform through a wired or wireless network. By the circulating water intelligent monitoring system, shortcomings of hysteresis quality, time consumption, labor consumption, incapability of remote control and the like of a conventional monitoring mode are overcome; and an Internet of things system capable of performing remote operation of acquiring, processing and monitoring data in real time, permanently storing and deleting the data, checking a historical curve, realizing intelligent and automatic control, controlling site equipment on a network at any time any where, immediately judging a working state of the site equipment and remotely guiding a local worker is provided. The circulating water intelligent monitoring system can simultaneously monitor a plurality of remote circulating water systems and can access other relevant systems of an enterprise. By the circulating water intelligent monitoring system, the working amount of the worker and the running cost can be effectively reduced; and a demand of a user for remotely monitoring at any time any where can be met.

The invention discloses a remote control system for fire protection. A remote control PTZ(Pan / Tilt / Zoom)comprises a support assembly (1), a horizontal swing mechanism assembly (2) arranged on the support assembly (1), and a vertical lifting mechanism assembly (4) connecting the horizontal swing mechanism assembly (2) and a pitching revolving mechanism assembly (5), and a control cabinet (8) is arranged on the horizontal swing mechanism assembly (2); a fire monitor in a mechanical transmission subsystem comprises a water monitor support (61), a horizontal swing mechanism assembly (63), a swing body connecting elbow (71), and a pitching swing mechanism assembly (65), and a pipe cavity body of sealing connection is arranged inside a mechanism structure of the fire monitor; and the control cabinet (8) and a control cabinet (62) are respectively formed by a storage battery and an industrial personal computer mainboard, and the industrial personal computer mainboard is connected with a USB keyboard, an LCD (Liquid Crystal Display) touch screen, an alarm device, a USB mouse, a searchlight switch button, a stepping motor operating rod, an audio / video receiving module, a wireless data transmission module, a solenoid valve switching button, a stepping motor operating rod thereon.

A water monitoring device monitors and maintains swimming pool chemistry. The device includes sensors that detect water chemistry. The water monitoring device can communicate with computers and servers. This system can be used to determine if corrections to the water chemistry are required to maintain water sanitation. The device can monitor: pH, air temperature, water temperature, free chlorine levels, oxidation reduction potential, alkalinity, oxygen demand, water movement and velocity, and electrical conductivity.

An automatic indoor culture system for aquatic products features that the culture pool is stepped for staged cultures, the water for culture is treated by a circulating water treating system, the water quality is monitored and the optimum state is controlled by a water monitor system, and beside, the bait is uniformly distributed by an overlead moving throwing equipment. Its advantages are high density and quality, high survival rate and high output.

A water-monitoring apparatus includes a frame being installed by water. A reel is mounted on the frame. A tension cable is wound on the reel and including a lower end and an upper end. A buoy is connected with the tension cable. A control device is connected with the reel. When the water level changes, the control device rotates the reel so as to adjust a length of the tension cable extending from the reel for allowing the buoy to just float on the water surface. A detecting device is carried via the buoy for detecting at least one environmental characteristic and for producing at least one signal representative of the at least one environmental characteristic. A signal wire is electrically connected with the detecting device. The signal wire includes a helical section for automatically adjusting a distance between its two ends according to the position of the buoy. A monitor device is electrically connected with the signal wire.

A water monitoring device monitors and maintains swimming pool chemistry. The device includes sensors that detect water chemistry. The water monitoring device can communicate with computers and servers. This system can be used to determine if corrections to the water chemistry are required to maintain water sanitation. The device can monitor: pH, air temperature, water temperature, free chlorine levels, oxidation reduction potential, alkalinity, oxygen demand, water movement and velocity, and electrical conductivity.

The invention discloses a multi-information fusion intelligent water monitor extinguishing system based on an electric-optic turret. The multi-information fusion intelligent water monitor extinguishing system is composed of a detection front end, a display and control end and an executing end and is characterized in that the detection front end comprises the electric-optic turret, the electric-optic turret comprises an electric-optic servo control module, an image stabilizing module, an infrared detection module, a visible light detection module and a laser ranging module, the display and control end comprises a display and control computer and a tracker, the executing end comprises a water monitor body and a water monitor servo control module, the infrared detection module, the visible light detection module and the laser ranging module are in connection and communication with the electric-optic servo control module through an optic interface board, the infrared detection module and the visible light detection module are connected with the image stabilizing module, the image stabilizing module is connected with the display and control computer, the display and control computer is connected with the electric-optic servo control module, the tracker and the water monitor servo control module, and the water monitor servo control module is connected with the water monitor body.

The invention relates to fire-fighting equipment, in particular to an electricity-controlled fire water monitor. The electricity-controlled fire water monitor comprises a base, a water inlet pipe, a bent pipe, a water outlet pipe, a monitor head, a horizontal swinging mechanism, a vertical swinging mechanism and a controller, wherein the horizontal swinging mechanism comprises a first motor, a first worm, a first worm gear and a coupler; the vertical swinging mechanism comprises a second motor, a second worm, a second worm gear and a coupler; and the monitor head comprises an explosion direct-current adjusting sleeve, a current stabilizer, a push rod motor and a monitor sleeve. The push rod motor is fixedly installed on a casing of the monitor sleeve, the head portion of a push rod of the push rod motor is fixed on a casing of the explosion direct-current adjusting sleeve, the explosion direct-current adjusting sleeve can be slidingly sleeved on the head portion of the monitor sleeve, and the current stabilizer is fixed on the head portion of the monitor sleeve and coaxial to the monitor sleeve. The electricity-controlled fire water monitor is fast, flexible and stable in rotating, free of limitation from the rotation angle, capable of fast and accurately ejecting water on an aimed fire control target point, adjustable in ejected water spot and improved in fire extinguish speed and effect.

The invention discloses a reverse osmosis water purification machine-intelligent pure water forward / reverse-alternate flushing water-saving system and method. The reverse osmosis water purification machine-intelligent pure water forward / reverse-alternate flushing water-saving system comprises an intelligent water monitor, a water inlet solenoid valve, a first intelligent valve, a second intelligent valve, a third intelligent valve, a first check valve, a second check valve and an intelligent controller, wherein the first intelligent valve comprises a flushing valve and a wastewater ratio valve. The system is characterized in that a pressure barrel and a pure water outlet of a reverse osmosis membrane set form a reverse flush channel through a high-pressure switch and the second intelligent valve; and the pressure barrel, high-pressure switch, third intelligent valve, second check valve and a raw water inlet of the reverse osmosis membrane set form a forward flush channel. The forward flush and reverse flush are performed alternately. The system implements the purified water / concentrated water ratio of 1:1; and the pure water performs forward / reverse flush on the RO (reverse osmosis) membrane and dilutes and removes organic colloids, inorganic salts and the like on the surface layer of the RO membrane, thereby prolonging the service life of the RO membrane.

The invention discloses a high-pressure gas pulse water monitor device. The high-pressure gas pulse water monitor device comprises a rack, wherein the rack is provided with a launching cylinder; a gas outlet of the gas storage tank is communicated with an inlet of a high-pressure channel of a valve block; a high-speed switch gas valve comprises a valve body which is provided with a valve cavity; the middle part of the valve cavity is provided with a valve core in a manner of leftward-rightward movement; the right side of the valve cavity is provided with a stopper; a channel of the stopper is communicated with an outlet of the high-pressure channel; the right end of the valve core abuts against the stopper; the left end of the valve core is connected with the right end of a compression spring; the left end of the compression spring is arranged at the left part of the valve cavity; the left end of the valve cavity is provided with a normally-opened type controlled valve for controlling the connection or the disconnection between the left end of the valve cavity and the atmosphere; the left end of the valve cavity is communicated with the right end of the valve cavity by a flowing channel; the valve body is provided with a gas outlet which is communicated with a gas inlet of a lower end cover; a dead area is arranged between the right end of the valve core and the right side of the gas outlet. The high-pressure gas pulse water monitor device disclosed by the invention has the advantages that the launching range is relatively long and the power is relatively large.

The invention discloses an automatic fire extinguishing system of Nios II-based video image identification, comprising a camera, an image collector, an Nios II-based video image processor, a controller based on embedded ARM and an electrically controlled fire water monitor; the invention is characterized in that: the camera is connected with the image collector which is connected to a corresponding external function pin of the Nios II-based video image processor, the corresponding function pin of the Nios II-based video image processor is connected with a corresponding function pin of the controller based on embedded ARM and the corresponding external function pin of the controller based on embedded ARM is connected with the electrically controlled fire water monitor; the controller based on embedded ARM receives the fire condition position signal and the impingement position signal of the water column, the difference of the fire condition position and the impingement position of the water column is calculated, the movement of driving the electrically controlled fire water monitor is controlled, thus causing the impingement position of the water column and the fire condition position to be overlapped, and achieving the aim of fast and precise fire extinguishing.

A water-monitoring apparatus includes a frame installed by water. A reel is mounted on the frame. A cable including lower and upper ends is wound on the reel. A buoy is connected with the cable. At least one sensor is used to detect a water quality parameter and to produce a signal representative of the water quality parameter. The at least one sensor is carried via the buoy and electrically connected with the lower end of the cable. The reel can be rotated to adjust a length of the cable extending from the reel so that the at least one sensor can always be immersed in the water. A signal relay includes a first block electrically connected with the at least one sensor and a second block electrically connected with a monitoring station wherein the first and second blocks are connected with each other in a non-contact electric manner.

The invention provides an adjustable fire water monitor, and relates to fire fighting equipment. The adjustable fire water monitor comprises a monitor head, a base, a cross pipe, a main pipe, a branch pipe, a horizontal rotating device and a pitch swinging device. The horizontal rotating device is arranged at a joint of the main pipe and the base, and the pitch swinging device is arranged between the branch pipe and the cross pipe. The horizontal rotating device comprises a first motor, a first worm and a first worm gear; the pitch swinging device comprises a second motor, a second worm and a second worm gear; the monitor head comprises a straight flow spray regulating bush, a flow stabilizer, a pusher motor and a barrel, the pusher motor is fixedly mounted on a shell of the barrel, the head of a pusher of the pusher motor is fixed on a shell of the straight flow spray regulating bush, the straight flow spray regulating bush is slidably sleeved at the head of the barrel, and the flow stabilizer is fixed at the head of the barrel. The first motor, the second motor and the pusher motor are all connected with the controller through conductor wires. The fire water monitor is quick and stable in rotation, rotation angle of the fire water monitor is not limited, water spray is adjustable, and fire fighting speed is increased while fire fighting effect is improved.

This invention discloses one constant voltage water supply group teach system, which comprise water monitor center and at least one water supply station, wherein, the supply monitor center comprises communication module, programmable logic parts, network module, touch screen and computer connected to campus net and internet through network module; the water monitor center programmable parts and touch screen and computer are orderly connected; the said water supply station comprises analogue water supply system and training operation platform composed of programmable parts, transducer, touch screen and computer, analogue process module and communication module; the water supply monitor center and supply station are connected to communication module.

The invention relates to the technical field of fire-fighting and fire-extinguishing, in particular to a fire-fighting fire-extinguishing detection and anti-explosion robot. The robot comprises a robot terminal and a remote-control operation box, wherein the robot terminal comprises an anti-explosion chassis; a fire-fighting monitor, a water curtain spray head, a lifting platform, an anti-explosion headlamp, an alarm lamp, an anti-explosion infrared thermal imager, an anti-explosion sound pick-up, an anti-explosion loudspeaker, a first data transmission antenna, a first image transmission antenna, and an anti-explosion laser obstacle avoiding sensor are arranged above the anti-explosion chassis; the remote-control operation box comprises a back negative box and a hand-operated box; the robot is arranged on a crawler-type chassis, a carried fire water monitor, a poisonous and harmful gas detector, a temperature and humidity transmitter, a camera, a sound pick-up, and the like to replacefire-fighting and rescue staff to enter hazard disaster accident sites such as an inflammable site, an explosive site, a poisonous site, an oxygen-poor site and a dense-smoke site to perform detection, rescue and fire extinguishment, so that problems such as personal safety and insufficient data information acquisition confronted in the sites of a firefighter are effectively solved.

The invention discloses an intelligent fire robot with an unmanned aerial vehicle. The intelligent fire robot comprises a vehicle body, walking tracks arranged on two sides of the vehicle body, a water tank arranged on the vehicle body, a first wireless transceiver and a fire water monitor, and further comprises the unmanned aerial vehicle, a remote controller, a chassis, a landing plate, a first water pipe, a second water pipe, a pump, a water pumping controller, a booster pump, a boost controller, a first hose joint, a second hose joint, a spraying pipe and a fire hose; the chassis is arranged above the water tank for accommodating the unmanned aerial vehicle; the unmanned aerial vehicle includes a machine body, a landing frame, a fixed joint, camera, a second wireless transceiver and a flight controller; a water inlet for communicating with the water tank is formed in the bottom of the chassis; the landing plate is arranged in the chassis, and is provided with a landing tank and a pipe outlet groove; two electric box doors are arranged at the upper end of the chassis; an electric door controller respectively connected with the two electric box doors is arranged in the chassis; and a positioner is arranged on the landing plate.

A microstructure-based chemical sensor that can be interrogated by a remote observer. The device acts as an electromagnetic wave filter in the optical region of the spectrum, filtering one or more wavelength bands where the band spectral notch location shifts in response to the accumulation of material on the surface of the microstructure sensor. The apparatus has a substrate having a surface relief structure containing dielectric bodies with one or more physical dimensions smaller than the wavelength of the filtered electromagnetic waves, such structures repeated in an array covering at least a portion of the surface of the substrate. A retro-reflecting structure allows interrogation of the sensor over a wide field of view. The device is particularly useful as a water monitoring device in hard to reach locations, and as a chemical warfare or explosives detector that can be read from a safe distance.

The invention discloses a soil sampling, drug injection and repair integrated machine, which specifically comprises a mobile system, a power system, a spiral drilling system, a vibration drilling system, a rapid detection system, a drug injection system and a control system. The mobile system uses caterpillar tracks as traveling carriers to adapt to various field environments. After the soil sampling, drug injection and repair integrated machine is moved to a target position and fixed, bearing rails are erected. According to actual needs, the spiral drilling system with a large-diameter earth-boring pipe outside or the vibration drilling system with a small-diameter earth-boring pipe outside is selected to complete the collection of soil samples and the installation of groundwater infiltration pipes. The rapid detection system can carry out rapid judgment according to on-site soil samples and groundwater samples, and can semi-quantitatively determine a pollution position and a pollution situation so as to determine an injection position and an injection amount of a remediation agent. The vibration drilling system is matched with the drug injection system to realize drug pressure injection in a target depth soil layer and repair polluted soil. According to the invention, the functions of soil sampling, underground water monitoring well construction, remediation agent injection and the like are integrated into the integrated machine, so that the application range of the machine is wider, and meanwhile, the field diversified requirements in the field investigation and remediation process can be met. The machine is simple to operate, flexible and convenient, and has higher utilization efficiency.

The invention discloses a despin device for a long-range straight-flow type fire water monitor and a processing process. The despin device comprises a fire water monitor head, a spray tube, a flow straightener, a bent tube I, a bent tube II and a despin sheet, wherein the bent tube I and the bent tube II are connected by a flange structure; the eccentric part of the despin sheet is welded on the inner part of the bent tube I; the flow straightener is arranged on the inner part of the spray tube in a sleeving mode, and is welded and fixed by a welding process; the fire water monitor head is arranged on the spray tube in a threaded connection mode; a sawtooth type micro guide slot is processed in a runner inside the fire water monitor head for reducing flow resistance at a spray nozzle; and through co-action of the despin sheet inside the bent tube I, the flow straightener inside the spray tube and the micro guide slot in the spray nozzle, the range of the long-range straight-flow type fire water monitor can be remarkably increased.

The invention discloses a hydraulic auto-oscillation control system for a fire water monitor, which comprises a hydraulic cylinder, a watercourse base plate, a hydraulic change valve and a mechanical feedback device, wherein the hydraulic cylinder comprises a cylinder body, a piston, a piston rod, a cylinder body end cover and the like; the hydraulic change valve comprises a valve plug, a valve body, a positioning end cover, an end cover spacer and the like; and the mechanical feedback device comprises a bumping head, a bumping block, an adjusting handle, a drive bracket and the like. When the valve plug is positioned at a left position of the valve body, water enters a left cavity of the cylinder body, and the piston rod moves rightwards, when the piston rod moves to a certain position, the bumping block positioned on the left side presses the bumping head to plug a water outlet, and then the pressure of the left cavity of the cylinder body increases to push the valve plug to move rightwards; and when the valve plug moves to a right position of the valve body, water enters a right cavity of the cylinder body, and the piston rod moves leftwards. Under the action of the water power, the control system can drive the piston rod to move back and forth so as to drive a fire water monitor head to jet at a certain angle and in a certain oscillating frequency, has a wide coverage and is in particular suitable for a large space and the places where firefighters are unapproachable.

The invention discloses a control system of a fire water monitor. The control system comprises a power module, an input module, a microcontroller and an output module, wherein the power module provides power for the whole control system; an output end of the input module is connected to an input end of the microcontroller; an input end of the output module is connected to an output end of the microcontroller and an output end of the output module is connected to an executive component of the fire water monitor; and the input module is provided with a pyroelectricity sensor the front end of which is provided with a narrow band filter through which only the infrared light with the wavelength of 4.06-4.4mu can be transmitted. After the technical scheme is adopted and the system adopts the microcontroller as a central controller, peripheral components are few and failure rate is low, and besides, as the front end of the pyroelectricity sensor is provided with the narrow band filter throughwhich only the infrared light with the wavelength of 4.06-4.4mu can be transmitted, sunlight, thunder and lightning light, electric welding light and other interference sources with the wavelength out of the range of 4.06-4.4mu are filtered out by the narrow band filter, thus ensuring the accuracy of detected flames and improving the working reliability of the system.

The invention relates to a fire rescue and extinguishing system for a super high-rise building. A window cleaning machine is arranged on the super high-rise building needing rescue. The window cleaning machine is connected with a window cleaning machine basket which is connected with a pedestrian pedal and a stabilizing rod. The window cleaning machine basket is provided with a smoke flow guide plate. The bottom of the smoke flow guide pipe is provided with a center drainage hole, a water distributor, a radiation sensor and a temperature sensor. The super high-rise building needing rescue is provided with an underground fire water pool which is connected with a fire water monitor and a roof fire water tank. The roof fire water tank is connected with an electric control water mist spray head which is connected with the radiation sensor and the temperature sensor. Trapped persons can be effectively rescued; the fire water monitor, the electric control water mist spray head, a fire water supply connector, the temperature and radiation sensors, the water distributor and other safety protection measures and arranged, and therefore safety, fire control and fire extinguishing are ensured; high-temperature smoke can be guided and avoided, and it is ensured that an evacuation exit is not invaded by smoke; and a buffer facility is arranged to prevent persons from falling and used as a rescue air cushion.

Disclosed are a light high-mobility long-distance water supply fire-fighting method and system. The method includes the following steps that (1) a fire pumper, a water hose laying fire-fighting truck and a water monitor fire-fighting truck are arranged, the fire pumper is parked around a water source far from the scene of a fire, the water monitor fire-fighting truck is parked in a place needing water supply, and the water hose laying fire-fighting truck is parked beside the fire pumper; (2) the water hose laying fire-fighting truck lays a water hose between the fire pumper and the water monitor fire-fighting truck, one end of the water hose is connected with a floating type immersible pump of the fire pumper, and the other end of the water hose is connected with a water conduit of the water monitor fire-fighting truck; (3) the floating type immersible pump is put in the water source, water is ceaselessly conveyed to the water monitor fire-fighting truck through the water hose, the water is discharged through a vehicle-mounted fire pump in two ways, one way of water is discharged through a fire water monitor, and the other way of water is discharged through a fire water branch connected to a water outlet pipe; (4) after the fire is put out, the water in the water hose is completely discharged through the fire pumper, and the water hose laying fire-fighting truck performs mobile rolling-up on the water hose; and (5) after the operation is finished, remained water in a pipeline system of the water monitor fire-fighting truck is completely discharged.

The invention discloses a water filtering pipe, an underground water monitoring well device and a construction method. The water filtering pipe is arranged at the bottom of an underground water sampling well, and comprises a pipe body, at least one filtering layer and a water stopping ring; the pipe body is provided with an upper pipe wall part and a lower pipe wall part; a plurality of through holes are formed in the lower pipe wall part; the at least one filtering layer wraps the lower pipe wall part; the water stopping ring surrounds the upper pipe wall part; the sizes of the filtering holes in the filtering layer are smaller than those of the through holes; and the water stopping ring is made of a material which expands with water. As the water filtering pipe is arranged at the bottomof the underground water sampling well and is used for detecting the water quality of the underground water of a specific stratum; the water filtering pipe is provided with at least one filtering layer which wraps the pipe body and is used for filtering soil particles and suspended matters, so that the space between the water filtering pipe and the wall of the well is not filled with a filtering layer; therefore the materials are saved; the transportation labour cost is reduced; and moreover, the used underground water well is also removed very conveniently so as not to affect subsequent development work of a site.

The invention relates to a fire-fighting device, in particular to an electric-power-free fire-fighting device. The electric-power-free fire-fighting device comprises a sweeping board tank, a fire extinguishment tank, a water band disc base seat, a water tank, a water inlet tank, a hand-held fire extinguishment tank and moving devices. By means of the electric-power-free fire-fighting device, the problems that according to most existing fire fighting truck devices, water is sprayed out of water monitors with electric power supply, under the circumstance that when electric power is insufficientor unavailable, fire extinguishment for saving life and property cannot be conducted through the water monitors, so that more economic losses and casualties can be caused, a fire scene is generally complex in landform, and a fire-fighting rescue truck is overlarge in full load weight, possibly rolls over when being driven in the scene with the uneven landform and cannot reach the nearest fire fighting position can be solved. The upper end of the sweeping board tank is provided with a sweeping board tank slide way, a sweeping board tank motor base, a sweeping board tank motor and a sweeping board tank lead screw, and the sweeping board tank slide way is arranged inside the sweeping board tank.