38results about How to "Prevent water theft" patented technology

The invention discloses a multifunctional filtration type two-way telescoping anti-theft gate valve. The multifunctional filtration type two-way telescoping anti-theft gate valve comprises a valve body, a valve deck, a rotary cover, a lower valve deck, a valve rod and locking nuts. The valve deck is arranged above the valve body, a square hole is formed in the other end of the valve rod, and a locking blind hole and a positioning blind hole are formed in the upper end face of the valve deck in a spaced mode. A rotatable functional plate is arranged between the rotary cover and the valve deck, and a locking hole which a piece of locked magnetic steel can pass through, and a positioning hole matched with a piece of movable magnetic steel are formed in the functional plate. A circular groove is formed in the side wall of the lower end of the rotary cover, and a magnetic conduction iron ring is arranged in the circular groove. A positioning groove and a hexagonal hole used for opening and closing are formed in the upper end face of the rotary cover. A fixing hole is formed in the outer side wall of the valve deck. An O-type ring is further arranged in the outer side wall of the valve deck and below the rotary cover. The valve body is located at a gate plate water flow control port, and filter screens are arranged between the valve body and a water inlet channel and between the valve body and a water outlet channel. A sliding telescopic pipe is arranged between a water inlet and a water outlet of the valve body. The multifunctional filtration type two-way telescoping anti-theft gate valve is reasonable in structural design, convenient to install and detach and low in cost, has the two-way telescoping movable connection and filtration functions and can compensate for a pipeline. The multifunctional filtration type two-way telescoping anti-theft gate valve can be used as either an anti-theft valve or an ordinary gate valve and is flexible to use and wide in application range.

The invention relates to a magnetic induction pulse water meter. The magnetic induction pulse water meter comprises a water meter body and a cavity, wherein an inner shell base is arranged in the cavity and divides the cavity into an upper cavity and a lower cavity, a water inlet is formed at the upper part of the lower cavity and a water outlet is formed at the lower part of the lower cavity, an impeller base is arranged in the lower cavity, an impeller is rotationally connected on the impeller base, an impeller shaft is fixedly arranged on the impeller, an avoidance hole is formed on the inner shell base, the upper end of the impeller shaft penetrates through the avoidance hole to be exposed in the upper cavity, and magnetic steel is arranged at the upper end of the impeller shaft. The water meter also comprises a high magnetic conductive stator piece, a coil holder iron core and a circuit board, wherein a magnetic pole cavity is formed on the high magnetic conductive stator piece, the magnetic steel is positioned in the magnetic pole cavity, a coil is wound on the coil holder iron core, and the circuit board is connected with the coil. According to the water meter, the impeller shaft drives the magnetic steel to rotate to make the coil generate a pulse signal and convert the pulse signal into a water flow rate information, the measurement precision is high, the measurement accuracy is high when the water flow rate is low, and the leakage is low; and the water meter has the advantages of low manufacture cost, high precision, convenience in installation and the like.

The invention discloses a one-way valve. The one-way valve comprises a valve rod, a valve body, a gate plate, a valve cover, a hand wheel and a check valve core assembly, wherein a water inlet and a water outlet are formed in the valve body, the check valve core assembly is arranged in a cavity body of the water inlet to form a check valve, at least one threading hole is formed in the valve cover, a threading hole is formed in the valve body, and a filter pipe is further connected to the outer end of the water inlet. According to the one-way valve, a gate valve and the check valve are integrated, so that the one-way valve has dual functions of two valves, and an original complex combined structure is simplified; the threading holes are formed in the valve cover and the valve body, and the valve cover and the valve body are stringed by threads, so that water is effectively prevented from being stolen by users; and furthermore, the one-way valve further has a filter function, so that the damage of the valve core is effectively prevented.

A pre-payment water meter with IC card is disclosed that comprises core of the water meter, motorized valve, water metering controller. The motorized valve is the balanced motorized plug valve which consists of motor, motor holder, valve body, screw bolt and valve core, the motor holder is mounted on the valve body, the motor is connected with the valve core via the screw bolt, a through-hole which penetrates the upper end surface and the lower end surface is located on the valve core. The advantages of the invention are following: low initial power consumption, flexible and saving electricity, kinetic current free, accuracy of measuring, small inaccuracy, preventing user steal water.

The invention discloses a system of utilizing GSM/GPRS/CDMA network remote transmission to control information of a heat energy meter, which comprises a meter reading terminal, a GSM/GPRS/CDMA network and a monitoring center, wherein the monitoring center comprises a monitoring end GSM/GPRS/CDMA network modem and a heating company host machine server, the meter reading terminal comprises the heat energy meter, a meter reading terminal GSM/GPRS/CDMA network modem, wherein a data transmission end port of the heat energy meter is connected with an input end port of the meter reading terminal GSM/GPRS/CDMA network modem, an output end port of the meter reading terminal GSM/GPRS/CDMA network modem is switched into the monitoring end GSM/GPRS/CDMA network modem through a GSM/GPRS/CDMA network, and an output end of the monitoring end GSM/GPRS/CDMA network modem is connected with an input end of the heating company host machine server.

The invention discloses an electronic cipher key. An electronic cipher key rotating plate is arranged in a shell; a photosensitive tube and a luminescent tube are arranged in the rotating plate and the shell; the photosensitive tube is connected with a control circuit; the photosensitive tube and the luminescent tube face to a chromatic circle; and the chromatic circle consists of vittas of which the gray scale is periodically changed.

The invention discloses a water meter demounting prevention device, which comprises a shell, a positioning shaft, a positioning shaft sleeve and a tension spring. The shell is divided into left and right halves which are connected with a groove I and a groove II respectively, and a connection shaft is arranged on a connection plate I which is arranged in the groove I. An elastic part and a magnetic part are sequentially arranged between the connection plate I and the shell; the magnetic part is connected with the positioning shaft sleeve; the positioning shaft sequentially penetrates the positioning shaft sleeve, the magnetic part and the elastic part to sleeve the connection shaft; a clamping fastener in clamp connection with the magnetic part sleeves the connection shaft, and the tensionspring and a limiting part arranged on the connection plate I jointly control rotation of the clamping fastener; a connection plate II in clamp connection with the clamping fastener is arranged at the end of the groove II. The water meter demounting prevention device has advantages that opening and closing of the demounting prevention device can be realized, the demounting prevention device can only be opened with a specific ferromagnetic key to enable demounting of a water meter, and accordingly problems of meter stealing and water stealing can be prevented. In addition, the water meter demounting prevention device is recyclable, resource waste and environmental pollution are avoided, and production cost is reduced.

The invention discloses an IoT (Internet of Things)-based superior agricultural water-saving irrigation system, and relates to the technical field of irrigation systems. The system comprises an irrigation assembly, a plurality of soil humidity sensors, a water supply device and a control device, wherein the water supply device comprises a quantitative box, a water storage pool, a first water pumpand a second water pump, a first water pipe is fixed at a water outlet of the first water pump, one end of the first water pipe is located in the quantitative box, a transverse plate is fixed at the upper part of one side of the quantitative box, and a liquid level sensor is fixed on one surface of the transverse plate. According to the system, water can be extracted into the quantitative box through the first water pump and the first water pipe, water height in the quantitative box can be monitored by the liquid level sensor, timing can be performed by a timer, a second switching valve can becontrolled to be closed and opened and timing and quantitative processing can be performed on irrigation by a processor, and the problem that the water consumption of an existing irrigation system cannot be effectively controlled is solved.

The invention relates to the field of gas metering, in particular to a magnetic-inducing pulse measuring membrane type gas meter. The magnetic-inducing pulse measuring membrane type gas meter comprises a gas meter body, a metering chamber, a gas inlet, a gas outlet, a gas meter movement and a body gear and further comprises a metering rotation shaft, a speed improving gear set, magnetic steel, a high magnetic conductive stator piece, a coil holder iron core and an intelligent plate, a magnetic pole cavity is arranged on the high magnetic conductive stator piece, an even number of equant magnetic zones are arranged on the magnetic steel, the magnetic poles of every two adjacent magnetic zones are opposite, the coil holder iron core is wound with a coil, the intelligent plate is connected with the coil to obtain pulse signals on the coil, and the pulse signals are converted into gas flow information. The gas meter drives the magnetic steel to rotate through the body gear, the speed improving gear set and the metering rotation shaft so as to make the coil produce pulse signals, the pulse signals are converted into the gas flow information, the measuring accuracy is high, measurement is accurate during smaller gas flow, and metering leakage is small. In addition, the magnetic-inducing pulse measuring membrane type gas meter further has the advantages of being low in manufacturing cost, high in accuracy, convenient to install and the like.

The invention discloses an IC card water control charging device which comprises a controller, an electromagnetic valve and a flow sensor. An IC card reading module is arranged on the controller. The electromagnetic valve and the flow sensor are electrically connected with the controller. The electromagnetic valve and the flow sensor are installed on a tap water pipe. The electromagnetic valve is sleeved with a shielding cover. A reed pipe device and a buzzing alarm device are installed on the flow sensor. The reed pipe device and the buzzing alarm are electrically connected with the controller. The IC card water control charging device is simple in structure, convenient to install, capable of resisting disassembling and magnesium, and capable of effectively avoiding a water stealing event.

The invention discloses self-locking large and small flow intelligent detection control equipment. An outer impeller is arranged in a mounting cavity; a bush shaft is arranged at the center of the outer impeller; an inner impeller is arranged in the bush shaft; a rotating shaft is arranged at the center of the inner impeller; the top end of the rotating shaft is connected to a first transmission shaft through a spline structure; a water plugging cover is arranged at the lower end of the rotating shaft; a fine shaft is arranged at the lower end of the water plugging cover; the lower end of thefine shaft is connected in a lifting barrel in a sleeved manner; a water plugging ring is arranged in the bottom of the outer impeller; a bottom gear ring is arranged on the upper end surface of the water plugging ring; the lifting barrel is arranged in the fixed barrel; a slot is formed in the outer wall of the fixed barrel; a lifting cover is connected to the lower end of the fixed barrel in a sleeving manner; a jacking shaft is arranged at the center of the lifting cover; the jacking shaft is connected in the lifting barrel in a sleeved manner; a locking spring is arranged at the lower endof the jacking shaft; a magnetic conductive plate is arranged at the lower end of the lifting cover; and an electromagnet is arranged in the bottom of a mounting cavity. The self-locking large and small flow intelligent detection control equipment disclosed by the invention not only can monitor water flows of different sizes, but also can lock open and close of a water path, and is high in detection precision and stable and reliable to operate.

The invention relates to the technical field of water meters, and discloses a detachable water meter impeller protection device which comprises an impeller, a buffer mechanism is arranged at the bottom of the impeller, a fixing block is arranged in the buffer mechanism, a threaded part is arranged on the outer side of the bottom of the fixing block, and the size of the threaded part is matched with that of a groove in a limiting block. The bottom of the threaded piece is fixedly connected with a speed reduction block, the speed reduction block is composed of a certain number of hemispheres, the size of the speed reduction block is matched with that of the groove in the clamping block, a limiting block is arranged on the outer side of the threaded piece, the clamping block is arranged in the limiting block, and a groove is formed in the top of the clamping block; according to the detachable water meter impeller protection device, the gear at the bottom of the impeller is meshed with the gear-shaped notch in the top of the fixing block, the position of the impeller is fixed, meanwhile, the gear-shaped appearance and the notch are fixed more tightly, and the situation that the impeller shakes in the water meter under the impact of water flow, and consequently the impeller is impacted and damaged is prevented.

The invention discloses an air-pressure type water meter, and relates to a metering outfit in public waterworks, in particular to a water meter used for preventing water stealing. The air-press type water meter comprises a water meter; the air-pressure type water meter is characterized by further comprising a shell body, a steam countercurrent flow valve, a bucket-wheel device and an inversion-resisting device, wherein the water meter is arranged inside the shell body, and the water meter is connected to the bucket-wheel device; a guiding tube water outlet which is provided with the steam countercurrent flow valve is located above the bucket-wheel device, and a water inlet is located at the outside of the shell body; the inversion-resisting device is arranged inside the shell body. The air-pressure type water meter has the advantages of being novel in structure, simple and convenient in processing, convenient to use, capable of preventing the condition of the water stealing and the like, and thus the air-pressure type water meter belongs to a novel air-pressure water meter which integrates economical efficiency and practicability as a whole.

This invention relates to an anti-steal water meter including a meter and an inlet and an outlet characterizing in setting a check valve at the inlet of the meter including a hollow valve and sheets, the open-end of the inlet and the outlet are covered by the sheets made of elastic materials, one end of which is fixed at the outlet of the valve to open and close against the valve.

The invention relates to a passive mechanical prepaid quantitative water-selling water meter. The passive mechanical prepaid quantitative water-selling water meter comprises a water meter shell, wherein a metering device is arranged at the position, close to the water inlet end, of the water meter shell; a quantitative device is arranged at the position, close to the water outlet end, of the watermeter shell; and the metering device and the quantitative device are in meshed linkage through a transition gear. Water quantity statistics and prepaid water amount metering work can be completed without arranging a circuit board, and the safety performance of the water meter is improved; meanwhile, a positioning valve structure which is composed of a valve body and a valve base is adopted, wherein the valve body has a first early warning bayonet and a second early warning bayonet, and the valve base has a stepped clamping block; the positioning valve structure is connected with a quantitative shaft, so that automatic valve opening can be realized when the water is purchased; and meanwhile, the water passing amount between the valve base and a water passing base can be reduced through thecooperation of the first early warning bayonet and the clamping block when the water is almost used up, so that a user can be reminded to buy water in a manner of reducing the water outlet amount.

A water meter of water stealing-proof type is prepared as setting internal thread being used to connect with water inlet pipe on internal wall of water inlet on water meter and external thread being used to connect with water outlet pipe through pipe fittings on external wall of water outlet on water meter, setting valve on pipe wall of water inlet on water meter.

The invention discloses an intelligent Internet of Things water meter, which comprises a water storage device, a water outlet pipe and a flow meter, the water storage device comprises a water storage tank, a water inlet guide pipe, a connecting rod, a balancing rod, a water seal ball, a counterbalance ball, a floating ball, a pull ball, a floating ball limiting groove, a pull ball moving groove, a first connecting line and a second connecting line, and the flow meter is arranged on the water storage tank; the water outlet pipe is arranged on the water storage tank, the connecting rod is arranged on the inner top wall of the water storage tank, the balancing rod is hinged to the connecting rod, the water inlet guide pipe is arranged on the inner side of the water storage tank, a water seal ball is arranged at the end, close to the water inlet guide pipe, of the balancing rod, and a balancing ball is arranged at the end, away from the water inlet guide pipe, of the balancing rod; and the flow meter comprises a meter shell, a water inlet pipe, an impeller, an impeller shaft, a sensor and a display meter, and a permanent magnet is arranged on the impeller shaft. The invention belongs to the field of measuring meters, and particularly provides an intelligent Internet of Things water meter capable of preventing water theft. The intelligent Internet of Things water meter can prevent speculators from stealing water by using small flow.

A burglar-proof device of water meter is prepared as forming open / close unit by open/close flow guide plate, master cabin and open/close flow guide chamber; forming seal unit by sealing washer and sealing joint lever; setting open/close flow guide chamber in master chamber and sealing washer on said flow guide plate being set in said flow guide chamber; connecting said flow guide plated by sealing joint lever and connecting prepared device to water outlet end of water meter.