Internet of Things water meter capable of working without power supply

Abstract

The invention discloses an Internet of Things water meter capable of working without power supply. A power-free valve which is closed when control is not added is mounted on a water supply passage in the water meter; water fees, attacks and damages, mechanical faults, circuit faults and battery power shortage are not received, the valve can be automatically turned off without power, and water supply is stopped; the metering function of the water meter is a mechanical water meter, and the management and charging functions of the water meter are circuits; powering on the circuit by using the mechanical switch state after mechanical detection and metering, and recovering to a new round of water supply state after charging is confirmed by the circuit; when the water supply condition is not met, payment is notified through various information modes, water is continuously supplied to the charged water volume, and then the valve in the water meter is automatically turned off without electricity; closed-loop payment exchange between the electronic currency and the physical goods is realized; electromechanical transformation and pulse equivalent do not exist, only unified metering conforming to a metering method is achieved, and the current situations of double metering, double control and double display of an existing electronic water meter generated through electromechanical transformation are changed.

Description

Technical Field

[0001] The present invention relates to a flow measurement device; more specifically, it relates to an Internet of Things water meter that uses a central management computer to perform centralized / decentralized management, charging and control of decentralized water supply terminals; the circuit in the device does not need to be powered during the water supply process, and is only powered on instantaneously during each round of water supply to perform Internet of Things charging management and open valves installed in the device; and the Internet of Things water meter that can work without power is not powered on and can automatically close the valves in the device when the water supply conditions are not met. Background Art

[0002] At present, most of the public electronic information charging water meters with management and control are equipped with valves on the water supply passage of mechanical water meters. Most of the valves used are ball valves, and a small number of them are ceramic valves, pilot valves, etc., which are driven to open / close by motors and their mechanical reduction mechanisms; the opening / closing of the valves is controlled by the circuits superimposed on the mechanical water meters and the electronic circuits that perform data exchange and communication functions with the central management computer. The control method of opening / closing can be decentralized, but more of them are comprehensive controls that combine centralized and decentralized control. The electronic circuits on the water meters include IC cards, smart IC cards and their card readers; some IC cards are contact IC cards, and some IC cards are contactless IC cards; some water meters need to be connected with wired communication lines for meter reading, and the use of interactive wireless password communication technology is currently a major trend; with the development of electronic technology and network technology, especially the use of Internet of Things technology, its security and practical application scope are being effectively improved. Therefore, for decentralized physical terminal water supply points such as water supply networks, the decentralized / centralized management of the Internet of Things connected by objects should be the best application of electronic information technology at present. As for mechanical water meters, the existing mechanical water meters at this stage mainly use mechanical detection and measurement methods such as velocity type and volumetric type to detect the volume of water passing through the water meter, and use mechanical digital rollers (character wheels) or digital indicators on the top of gears to display instantaneous flow and cumulative flow readings. Mechanical water meter detection and measurement are stable and reliable, and the technology is mature. The non-electrical quantity electrical measurement technology of electronic information charging water meters is to superimpose non-electrical quantity electrical measurement devices on mechanical water meters, such as installing magnets on rotating metering gears, and magnets passing through magnetic sensitive reed switches and magnetic sensitive semiconductor Hall elements to obtain electronic pulse signals; or converting light sources into optical pulse digital coded signals and infrared light sources into corresponding electronic digital coded signals through mechanical rotation, so that the water flow signal passing through the mechanical water meter is converted into electronic pulse digital information through such electromechanical conversion (also known as analog / digital conversion or A / D conversion in electronic technology), so as to obtain the electronic reading of the flow of the mechanical water meter and accumulate it into a cumulative flow reading. The water meter circuit transmits flow information to the central management computer through wired or radio communication networks and the Internet of Things. The central management computer manages the user's information, and controls the valves in the water meter to supply water in combination with corresponding management conditions and policy requirements.

[0003] From the above description, we can know that 1. The existing electronic information charging water meter has mechanical data and electronic data of the water volume, and has two kinds of metering readings. The water volume is displayed by electronic numbers and mechanical wheels at the same time. The two kinds of metering readings realize the dual control of electronic and mechanical, and use such dual measurement for charging management. That is to say, the daily water supply, water use and payment management are all electronic information data, the detection, transmission, control and display results of measurement are mechanical data, and the electronic data is only the electronic pulse alteration in the process of mechanical detection and measurement; one water use data has two different metering readings: the payment is based on the electronic pulse alteration, and the control of water supply and water use is also the electronic pulse alteration; and the electronic data may be inconsistent with the mechanical data in actual management. When the mechanical / electronic numbers are inconsistent, the water supply and water management department may take the larger digital reading as the standard, or the mechanical display data as the standard, or the electronic charging execution data as the standard, and the other data is only used as reference data. 2. When a large power is needed to drive the micro-reduction motor to close the valve in the water meter, if the configured power supply or auxiliary power supply (such as charging capacitor, etc.) is out of power, underpowered, or unable to supply large current due to various reasons, and cannot drive the water meter motor to close the valve, it will inevitably lead to the loss of control of the electronic information water meter; especially the ball valve has a high probability of losing control due to its inherent characteristics. 3. Existing electronic information water meters must have a 24-hour uninterrupted power supply, even if it is only a very small power supply when the circuit is in a dormant state, but power supply is required to have electronic metering pulses. If the power supply fails, metering, deduction, and valve closing cannot be achieved. If one or more of the functions fail, the management of the electronic water meter will fail. However, even the world's best quality batteries currently have a certain failure rate during their normal service life. Summary of the invention

[0004] During the working process, the present invention works completely without electricity in the whole water supply process except for the instantaneous power-on when collecting water fees. It also has the function of automatically shutting off the valve without power supply, that is, when the water fee is not received or cannot be collected, it is attacked and damaged, the circuit is without power or lacks power, there is a mechanical failure or circuit failure, the valve will be automatically shut off without power to stop the water supply. It realizes the closed-loop feedback of water fee input and water supply output unconditionally. It is a special control function that automatically reverses and closes when the water supply conditions are not met.

[0005] The present invention aims to develop an Internet of Things water meter with a unified mechanical metering display. From the mechanical detection and metering of the flow of the mechanical water meter, instantaneous flow display, metering value transmission, cumulative metering reading, metering management, charging and deduction, valve control, only one mechanical metering reading is used. The function of the Internet of Things electronic circuit is to charge, and meet the policy management requirements of the tiered water price, etc.; the functions of mechanical detection, metering, and water supply display belong to the mechanical water meter; the functions of charging and controlling the Internet of Things management belong to the circuit; only when charging and deducting, the circuit is instantly powered on and works. When the water fee that the user needs to pay cannot be received, the user is informed of the water fee information through various information methods, such as sending text messages, WeChat, etc., without starting the circuit or powering on. The Internet of Things water meter of the present invention continues to supply the water volume for which the water fee has been paid, and then automatically closes the valve in the water meter to stop supplying water. Similarly, the various data, water meter codes, numbers, user names, addresses, communication methods, population, water prices, time, tiered prices, deduction accounts, etc. in the existing charging management using centralized / decentralized management computers do not need to be changed. The water meter circuit is only instantly powered on and works when charging. The Internet of Things water meters must achieve unified metering, single transmission and display of water supply and use data, stable and reliable closed-loop charging and water supply, prevention of illegal non-destructive attacks, and the ability to shut off the valve inside the meter if there is no water bill and no electricity, and be able to work without electricity to adapt to the current social, economic, and technological development level.

[0006] The first problem solved by the present invention is that the dual-metering and dual-display metering problem of mechanical and electronic is realized, and the metering is unified; the metering result is displayed mechanically, and the charging result is displayed electronically. The present invention realizes that when the mechanical metering data meets a charging unit, a corresponding charging state will appear, and the next water supply cycle will only be generated after feedback confirms that the water fee has been received; the water supply data is transmitted and displayed singly, and the charging water supply closed loop is stable and reliable.

[0007] The second technical problem solved by the present invention is the problem of mechanical valves in electronic IoT water meters closing when there is no water charge. The present invention installs a valve that automatically closes without electricity in the mechanical water meter: the energy required to close the valve during the process of opening the valve is stored in the displacement of the magnet or the deformation of the spring. If the next round of water supply charges cannot be collected, or the circuit in the water meter fails, there is no electricity or power shortage, or there are various illegal non-destructive attacks, and the user does not install a battery power supply in good faith, the water meter can continue to supply the water for which the water charge has been collected without power supply, and then automatically close the valve in the water meter. If the fee is not clearly received after the charging process is started, it is also regarded as a valve closing signal for closed-loop feedback.

[0008] The third technical problem that the present invention solves is that electronic water meters work normally without electricity. At present, electronic water meters still have the problem that both internal and external battery power supplies fail, which results in normal mechanical measurement of the water meter, but the electronic measurement and conversion of mechanical analog data into electronic measurement data (A / D conversion) do not work. Since the present invention abandons the electronic measurement, A / D conversion and other links, this problem is completely solved.

[0009] The fourth technical problem solved by the present invention is that the measurement detection, instantaneous flow rate and cumulative flow rate of the water meter are all completed by the mechanical structure; the collection of water charges is completed by the circuit, and the circuit starts the valve opening drive when the water charge is received. If the circuit cannot receive the water charge, it will confirm that the water charge is in arrears and will not start the valve opening drive; the A / D conversion and D / A conversion in the electronic / mechanical metering instruments are completely eliminated; thereby realizing the full closed-loop management and control of water charge collection and water supply management, and realizing a highly reliable closed-loop payment exchange of electronic currency and physical goods.

[0010] The technical solution adopted by the present invention is:

[0011] Provide a solution: install a valve that can be closed without electricity on the water supply path of the mechanical water meter. When there is no water consumption, mechanical failure, circuit failure, or attack and damage, the valve can be automatically closed without electricity to stop the water! The Internet of Things charging circuit is superimposed on this mechanical water meter, and such a water meter is used to invent an Internet of Things water meter that meets the statutory requirements of the Measurement Law. The mechanical function of the water meter is mechanical detection and measurement, water supply, mechanical display of instantaneous measurement, and mechanical display of cumulative measurement readings; the function of the superimposed Internet of Things electronic circuit is to power on communication, charge, and display the water fee when charging and deducting fees. Completely replace the current common analog / digital (A / D) conversion of mechanical measurement into electronic pulses! Power on when the user inquires about the water supply and fee situation, and display the fee situation. In terms of electronic technology structure and usage method, the combination of mechanical structure and electronic technology is used to the maximum extent to prevent various attacks and damages; realize the complete closed-loop payment exchange of electronic currency and physical goods of Internet of Things technology! Specifically, the Internet of Things water meter is not powered on when supplying water or not supplying water, and the circuit is powered on only when charging; but it can also be powered on manually when the user inquires.Each water meter is endowed with a unique code and QR code from the internal circuit to the external mark by the IC circuit in the meter. Through various communication networks, Internet of Things information networks, IC card carrier information transmission, etc., information is exchanged with the central management computer, the central management computer function is maximized, and the huge and scattered water meter circuit structure and function are simplified; the powerful database and management control function of the central management computer are used to collect and process water supply charge information and send management instructions, so as to centrally manage, charge and control the water supply; instant power-on operation is more conducive to the stable and reliable operation of the water supply equipment itself, and effectively prevent external electronic attacks; the valve installed in the water meter can be automatically closed when there is no water and no electricity, and the management and control is more reliable; the structure is simpler, the number of parts is smaller, and the whole machine works more reliably; a complete closed-loop payment exchange between electronic currency and physical goods is realized: that is, the output water supply is instantly powered on to start the charging process in the middle of the water supply, and the result (charging success or failure) is fed back to the input end, and after charging verification, metering detection, value transmission, process management, real-time control, the decision to continue water supply (start) is made. If the charging is unsuccessful, the water supply will continue to be completed without power supply and the valve will be automatically closed, and then the charging procedure will be restarted (automatically or manually), and the charging will be successful, and a new round of water supply will be started; if the charging is unsuccessful, the valve will remain closed and the power will be turned off; thus achieving complete closed-loop control; the metering results show unified metering data: the input water fee and the output water supply are always exactly the same; an alarm can be given when the water supply conditions are not met; in each round of charging and water supply process, when the circuit is instantly powered on and meets the water supply conditions, the motor in the meter is started to restore the control mechanism to the starting state of a new round of water supply; a single mechanical digital display is only the result of executing an electronic digital instruction, and once the electronic instruction is executed and completed, it has the characteristic of being unconditionally forced to continue to be executed by the mechanical part and cannot be revoked; when various water supply conditions are not met and water cannot be supplied to users, as a special means to ensure water supply and water use for users, a special button is set to prepay the overdraft water fee, or an emergency water supply management mechanism is provided by using a conditional circuit opening button; the Internet of Things water meter solution combining centralized charging management control with decentralized management control is successfully implemented.

[0012] The main invention methods or ideas of the technical solution are:

[0013] A valve (5) is installed on the water supply passage (53) of the mechanical water meter (50) so that it can automatically close even when there is no electricity when the water fee is not received, the water meter is attacked, the battery is out of power or the circuit fails, or the mechanical failure requires the valve to be closed to stop the water supply; the original stable state of the valve (5) is that it is automatically in a closed state when not controlled; in the process of opening the valve (5), the driving arm (83) of the micro-reduction motor (19) drives the control arm (13) to rotate, and the magnet 1 (11) on the control arm (13) that has not rotated to the respective midlines above the magnetic slide valve (9) during the rotation, and the like-pole repulsion force between the magnet 2 (12) on the control arm (13) and the magnetic slide valve (9), and the opposite-pole attraction force between the magnet 2 (12) on the control arm (13) and the magnetic slide valve (9), are separated by the valve frame (10). The kinetic energy for the control arm (13) to rotate in the valve closing direction is provided, so that when the valve (5) is opened, the energy required for closing the valve (5) is stored in the relative displacement between the magnet 1 (11), the magnet 2 (12) and the magnetic slide valve (9); the internal structure of the valve (5) is composed of a valve body (6), a rubber bowl (7), a lever (8), a magnetic slide valve (9), a support rod (27) and a slide valve (32); the rubber bowl (7) is provided with a pilot hole (28), a drain hole (29) and an ear (30); a cloth curtain (54) is provided inside the wall of the rubber bowl (7) as a reinforcing rib, a reinforcing plate (31) for increasing the compressive strength is fixed in the double-layer interlayer at the bottom of the cloth curtain (54), a guide rod (35) is provided on the reinforcing plate (31), and the reinforcing plate (31) is provided with a guide rod (35). ) is fixed with the double-layer cloth curtain (54) by a reinforcing strip (71); the outer structure of the valve (5) is composed of a valve frame (10), a control arm (13), a drive arm (83), a micro-reduction motor (19), and a valve bracket (63); wherein the control arm (13) is equipped with a magnet 1 (11) with inverted magnetic poles, a magnet 2 (12), a spring clamp 1 (15), a spring 1 (88), a spring clamp 3 (17), a spring 3 (90), and a power-off action rod (20); the drive arm (83) acts on a switch K2 (26) installed on the valve frame (10) through the power-off action rod (20); the metering gear set (36) in the metering gear box (49) is connected to the metering gear through a transition gear (39). The counting and dosing wheels (64) are meshed and connected; the counting and dosing wheels (64) have a dosing shaft (65); the control notch 1 (66) on the dosing shaft (65) corresponds to the position of the spring clamp 1 (15) on the control arm (13); the control notch 3 (68) on the dosing shaft (65) corresponds to the position of the spring clamp 3 (17) on the control arm (13); a rotating shaft (21) is arranged in the fan-shaped groove (93) on the control arm (13); the fan-shaped groove (93) limits the driving range of the driving arm (83) on the control arm (13); the Internet of Things circuit board (1) in the upper shell (51) of the water meter has corresponding interactive communication or password communication, data exchange, control, charging, and protocol management functions; and has a forced power-on awakening working function;The Internet of Things circuit board (1) has a power drive circuit capable of executing a valve opening (5) instruction and driving a micro-reduction motor (19); a different and unique water meter code (62) or a two-dimensional code (91) is assigned to each water meter on the IC card inside the circuit board (1), and corresponding storage information is stored; the water meter has a communication method (60) for contacting the water supply management party outside; the numbers displayed on the mechanical character wheel (52) of the water supply volume of each water meter and the internal IC card information of each water meter circuit board (1) correspond to the corresponding water meter information and management content in the centralized management computer; the power-on bump (34) on the control arm (13) acts on the power-on switch K1 (25) installed on the valve frame (10), and the circuit board (1) is powered on. When the circuit board (1) charges and meets the water supply conditions, the micro-reduction motor (19) is powered on and driven; pressing the emergency button (3) on the water meter housing (80) can power on the circuit board (1) and start the circuit board (1) to work.

[0014] If the requirements of automatic reverse valve closing in case of failure, automatic valve closing during destructive attack, or automatic reverse valve closing when normal charging is not taken into consideration, a self-closing valve spring (48) is arranged above the leakage hole (29); the driving arm (83) of the micro-reduction motor (19) drives the control arm (13); the magnet 2 (12) on the control arm (13) does not rotate to the respective center lines above the magnetic slide valve (9) across the valve frame (10) during rotation; the repulsive force of the magnet 2 (12) and the magnetic slide valve (9) provides kinetic energy for the control arm (13) to rotate in the valve closing direction; the magnetic slide valve (9) acts on the slide valve (32) for opening / closing the leakage hole (29) through the lever (8) and the self-closing valve spring (48), so that when the valve (5) is opened, the energy required for closing the valve (5) is stored in the relative displacement between the magnet 2 (12) and the magnetic slide valve (9) and the deformation of the self-closing valve spring (48) in compression.

[0015] The following is some explanation of the invention method or idea:

[0016] In this invention scheme, since the fee management of the present invention is a potential response signal of the mechanical switch closure, not a pulse signal, it will not disappear instantly. Only after confirming the receipt of the water fee, the valve opening command is issued. The valve opening command will not disappear after the valve opening task is completed, and there is no structure of repeated charging in a round of water supply, so it is a completely reliable fee management. The quantitative shaft (65) on the counting quantitative wheel (64) led from the water metering gear set (36), the control notch 1 (66), the control notch 3 (68) on the quantitative shaft (65) correspond to the spring clamping knife 1 (15) and the spring clamping knife 3 (17) one by one. The magnet 1 (11) rotates to the top of the magnetic slide valve (9), not to the top that completely overlaps, but to the top that is less than the center line of the two magnets, so that the repulsive force of the magnetic slide valve (9) and the magnet 1 (11) and the suction force of the magnet 2 (12) will point to the valve closing direction. One point worth mentioning is that in actual use of the IoT water meter capable of working without electricity, since the user has paid or stored enough water fees, or the water supply management party has set a sufficient pre-water quota, in each round of water supply (for example, set to 1 cubic meter), a water fee collection-driving-recovery to the initial state of a new round of water supply will be generated when the water supply reaches about half a cubic meter. This process is only the spring clamping knife 1 (15) retracting "bending" through the quantitative shaft (65), and the movement distance is only about a few millimeters.

[0017] As for adding a self-closing valve spring (48) above the slide valve (32) in the inner structure of the valve (5), only one magnet 2 (12) can be used on the control arm; when the magnet 2 (12) rotates to the top of the magnetic slide valve (9), it is not completely overlapped, but just above the center line of the two magnets, so that the repulsive force between the magnet 2 (12) and the magnetic slide valve (9) points to the valve closing direction. Whether using one magnet 2 (12) or two magnets, magnet 1 (11) and magnet 2 (12), the inner structure of the valve (5) can be equipped with a self-closing valve spring (48).

[0018] The implementation of the present invention has the following beneficial effects:

[0019] 1. The present invention realizes the most basic legislative purpose of the measurement law: unified measurement standards and measurement display readings. It solves the structural defects of dual measurement, dual display and dual control in the existing mechanical / electronic metering water meter. It may put an end to the current electronic information water meter, and use both mechanical measurement and electronic measurement data in the same metering device.

[0020] 2. The present invention realizes the off-line operation of household electrical instruments; breaks through the classic mode that the traditional non-electrical quantity electrical measurement technology must rely on uninterrupted power supply for normal metering operation; improves the stability and reliability of water supply and metering.

[0021] 3. The built-in non-electric valve of the present invention can still close the valve when the water fee has not been received, the water meter circuit has no power or is short of power, or there is a mechanical failure, an electronic failure, or it is attacked and damaged, which greatly improves the quality and efficiency of management.

[0022] 4. The present invention realizes the closed-loop payment exchange of electronic currency and physical goods! Its input (payment fee) and output (water supply) have a completely corresponding control relationship, that is, the result of the output end is fed back to the input end to realize closed-loop automatic control. In the process of water supply, the machine is powered on and the circuit is charged only when the fee is charged. If the water fee cannot be collected, the water supply is not cut off immediately. Instead, various information transmission methods such as alarms, text messages, charging software, WeChat, etc. are used to notify the payment of water fees, and the water fee is continued to be paid. The valve is automatically closed stably when no electricity is used. Once the electronic instruction is executed and completed, it has the property of being unconditionally and irrevocably forced to continue to be executed by the mechanical part, which is convenient for users to use and for the maintenance and management of water supply managers, unifying the interests of users and managers.

[0023] 5. The structure of charging once for each round of water supply of the present invention conveniently meets the policy management requirements of tiered water prices.

[0024] In short, the present invention proposes a good solution for water supply Internet of Things management, and provides powerful charging, control and execution means for non-electric Internet of Things management in terms of equipment and technology; it solves the problem of electronic data / mechanical data dual measurement, dual control and dual display metering instruments that exist on a large scale in the current stage of water supply and drainage, throughout the industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0026] Figure 1 Schematic diagram of the structure of an IoT water meter that can work without electricity

[0027] Figure 2 Schematic diagram of the automatic shutdown state of the IoT water meter valve that can work without electricity

[0028] Figure 3 Schematic diagram of the valve drive of the IoT water meter that can work without electricity and restore the open state

[0029] Figure 4 Mechanical process control diagram of IoT water meter that can work without electricity

[0030] Figure 5 Closed-loop payment exchange control diagram for charging and supplying water using IoT water meters that can work without electricity

[0031] Figure 6 Circuit diagram of IoT water meter that can work without electricity

[0032] Figure 7Control arm structure diagram

[0033] Figure 8 Schematic diagram of rubber bowl structure

[0034] In the figure, 1, circuit board 2, circuit antenna 3, emergency button 5, valve 6, valve body 7, rubber bowl 8, lever 9, magnetic slide valve 10, valve frame 11, magnet 1 12, magnet 2 13, control arm 15, spring clamp 1 17, spring clamp 3 19, micro reduction motor 20, power-off action rod 21, rotating shaft 24, magnetic slide valve housing 25, switch K1 26, switch K2 27. Support rod 28. Pilot hole 29. Drain hole 30. Ear 31. Reinforcement plate 32. Slide valve 33. Magnetic slide valve magnet 34. Power-on protrusion 35. Guide rod 36. Metering gear set 37. Internal battery 38. External battery 39. Transition gear 40. IC card holder 41. Guide rod hole 42. Control arm gear 43. Magnetic slide valve seat 47. Card knife fixing screw 48. Self-closing valve spring 49. Metering gear box 50. Mechanical water meter 51. Mechanical water meter upper shell 52. Word wheel 53. Water supply passage 54. Cloth curtain 55. Mechanical water meter lower shell 56. Battery box 60. Communication method 61. QR code 62. Water meter code 63. Valve bracket 64. Counting quantitative wheel 65. Quantitative shaft 66. Control gap 1 68. Control gap 3 69, sealing box cover 70, support (71) reinforcement strip 72, external antenna interface 74, sealing strip 78, water outlet end 79, water inlet end 80, IoT water meter housing 81, valve port 83, drive arm 84, control arm shaft 85, card knife 1 86, lever connecting rod 87, card knife 3 88, spring 1 90, spring 3 91, circuit board display screen 92, drive arm shaft 93, drive fan-shaped groove DETAILED DESCRIPTION

[0035] The present invention is implemented as follows: in a mechanical water meter, the water flow through the water meter is measured by mechanical detection of the rotating impeller of the water meter or the volumetric metering box, and is transmitted in the metering gear box (49) through the gear of the metering gear set (36), and the measured value is displayed by a mechanical digital wheel (52) or a number with a direction indicator on the top of the gear to display the cumulative flow and instantaneous flow reading; in the water volume measurement value transmission wheel, an appropriate measurement quantitative level is set, for example, a 15mm / 20mm diameter water meter commonly used in households is set on a 0.1 cubic meter metering wheel as a counting quantitative wheel, and is transmitted to a counting quantitative wheel (64) through a metering transition wheel (39). This counting quantitative wheel (64) rotates one circle to obtain 1 cubic meter of water flow, which is used as the basic unit of charge for each round of water supply. If a larger diameter water meter with a larger water supply volume is used, a counting quantitative wheel of a higher measurement level is correspondingly set. Two quantitative control notches, i.e., control notch 1 (66) and control notch 3 (68), are provided at different heights of the wheel shaft quantitative axis (65) of the counting quantitative wheel (64) for facilitating sequential cyclic control during rotation; corresponding to the control notch 1 (66) is a spring clamp 1 (15) on the control arm (13), and corresponding to the control notch 3 (68) is a spring clamp 3 (17); the spring clamp 1 (15) contains a spring 1 (88), and the spring clamp 3 (17) contains a spring 3 (90); a small curved piece is provided in the middle of the spring clamp 1 (15) and the spring clamp 3 (17) to serve as a reserved safeguard spring in a redundant design. The spring clamp 1 (15), the spring clamp 3 (17) and the spring 1 (88) and the spring 3 (90) are installed on the control arm (13) in combination.The control arm (13) is provided with a control arm gear (42) for the driving arm (83) to be engaged and driven; the valve of the control arm (13) is opened by powering up the circuit board (1), and after interactive password communication and successful charging, the power driving circuit of the circuit board is powered on, and the micro reduction motor (19) is powered on, driving the driving arm (83) to drive the control arm (13), and the magnet 1 (11) on the control arm (13) and the magnetic slide valve magnet (33) of the magnetic slide valve (9) are attracted to each other through the valve frame (10), and the magnet 2 (12) and the magnetic slide valve magnet (33) of the magnetic slide valve (9) are repelled to each other with the same polarity, and the magnetic slide valve (9) moves downward, and through the support rod (27), the lever (8) inserted into the ear (30) and the lever connecting rod (86), the rubber bowl (7) and the slide valve (32) are pulled upward, and the slide valve (32) is separated. The drain hole (29) is opened, the rubber bowl (7) is upward, the rubber bowl (7) leaves the valve opening (81), the guide rod (35) is upward in the guide rod hole (41), the self-closing valve spring (48) is compressed, and the valve (5) is opened; when the control arm (13) is driven by the driving arm (83), the spring clamping knife 3 (17) and the spring clamping knife 1 (15) on the control arm (13) are pressed in turn to "bend" through the quantitative shaft (65) of the counting quantitative wheel (64) during rotation, and the magnet 2 (12) on the control arm (13) is driven to a position where the center line of both sides above the magnetic slide valve magnet (33) is not reached; the driving arm (83) drives the medium-pressure upper power-off action rod (20), the power-off action rod (20) touches the pressure switch K2 (26), the circuit board (1) is powered off, and the one-time valve opening drive is completed. During water supply, the magnet 2 (12) on the control arm (13) is subjected to the same-pole repulsion force of the magnetic slide valve magnet (33), which also becomes a force in the valve closing direction, and the force in the valve closing direction generated by the opposite-pole attraction between the magnet 1 (11) and the magnetic slide valve magnet (33). The power-off action rod (20) on the control arm (13) gradually leaves the drive arm (83) during rotation, and the switch K2 (26) returns to the normally closed state. During continuous water supply, the spring clamping knife 1 (15) gradually passes through the control gap 1 (66) from the quantitative shaft (65), and the spring clamping knife 3 (17) enters the control gap 3. (68), the power-on protrusion (34) presses on the circuit start switch K1 (25), the switch K1 (25) is closed, the circuit board (1) is powered on, interactive password communication occurs, and charging is performed; when charging is successful, the power drive circuit of the circuit board (1) is energized, the micro-reduction motor (19) rotates, the drive arm (83) rotates, and the drive control arm (13) rotates, repeating the above valve opening process, and the whole is restored to the initial state of the next round of valve opening; in one round of water supply, the drive arm (83) rotates one circle, and the control arm (13) rotates about 10 degrees, the spring clamp 3 (17), the spring clamp 1.

[0036] (15) It only moves a few millimeters. If the payment is unsuccessful, the user is informed to pay the water fee through sound, light, SMS, WeChat and other communication methods. At the same time, water supply continues until the water for which the water fee has been paid is used up. The valve does not need to be powered on or a circuit board is required to close the valve.

[0037] (1) and the power drive circuit work, the magnet 1 (11) of the control arm (13) and the magnetic slide valve magnet (33) are attracted by opposite charges, and the magnet 2 (12) and the magnetic slide valve magnet (33) are repelled by like charges, the spring clamp 3 (17) on the control arm (13) passes through the control notch 3 (68), the magnetic slide valve magnet (33) and the magnetic slide valve magnet (33) are attracted by opposite charges, the magnetic slide valve (9) moves upward, and the slide valve (32) blocks the leakage hole (29) downward through the lever (8), the support rod (27), and the lever connecting rod, the water flows into the rubber bowl (7) from the pilot hole (28), the rubber bowl (7) moves downward, presses the valve port (81), the guide rod (35) moves downward in the guide rod hole (41), and the valve (5) is closed. The power-on protrusion (34) on the control arm (13) presses the switch K1 (25), and the circuit board (1) is powered on to work or standby. In normal water supply operation, when the water fee is not owed, the bank deducts or the water fee is settled uniformly, it is impossible to close the valve! The circuit board (1) is also not powered on. Except for the charging process and the process of restoring to the initial state of a new round of water supply, the entire water supply process is completely off-power.

[0038] The following is an explanation with reference to the example diagram. In the example diagram, some minor parts or parts that do not need to be described in the original structure of the water meter are appropriately omitted; at the same time, the following explanation is appropriately omitted for the parts that have been explained in detail above.

[0039] Figure 1 This is a schematic diagram of the mechanical control structure of the IoT water meter. Figure 2 Schematic diagram of the automatic shutdown state of the IoT water meter valve that can work without electricity, and Figure 3 The schematic diagram of the valve driving and restoring opening state of the IoT water meter which can work without electricity is used to illustrate the invention; Figure 1 In the state, the driving arm (83) drives counterclockwise, driving the control arm (13) to rotate clockwise. After the driving arm (83) is engaged with the control arm gear (42), it continues to drive the control arm (13) to rotate clockwise, and the valve is opened. Figure 3 ; Figure 2 The water valve is shut off before the water fee is due. The whole process has been explained in detail before. Figure 4 It is a mechanical program control diagram of an Internet of Things water meter that can work without electricity. This control diagram briefly explains the working process of the present invention, which has been described in detail above. Figure 5It is a closed-loop payment exchange control diagram for charging and water supply of the present invention, that is, a control diagram for closed-loop payment exchange between electronic currency and physical goods. This diagram clearly illustrates the payment exchange and process control of water supply management between electronic currency and physical goods in the present invention; its output end is fed back to the input end to realize unconditional closed-loop control, and charging and water supply are a complete input / output closed-loop control relationship; considering the particularity of water supply and people's lives, it can be set to pay a certain amount of cubic meters of water in advance. Even if the water fee is not received, the water will not be cut off immediately, and water supply will continue to provide a buffer for water users. Figure 6 It is a principle block diagram of an Internet of Things water meter circuit that can work without electricity. In the present invention, among the functions superimposed on the water meter, the function of the circuit is only to charge fees and restore the water meter to the initial state of the next round of water supply after charging; various types of Internet of Things circuits superimposed on the water meter, such as smart IC cards (contact or contactless), remote transmission intelligence, wireless remote transmission, Internet of Things circuits, etc., are only the most basic functions of the present invention. Charging and starting the power drive circuit to restore the water meter to the initial state of a new round of water supply after successful charging. Figure 7 It is a schematic diagram of the control arm structure. Figure 8 This is a schematic diagram of the rubber bowl structure, which has been described in detail above. The present invention has a simple structure and reliable control, so no redundant description will be given.

[0040] Figure 1 It can be used as a summary of the specification.

Claims

1. An IoT water meter that can work without electricity, comprising a mechanical water meter, a valve installed on the water supply passage of the water meter, and an IoT centralized / decentralized charging management and control circuit superimposed on the water meter; The mechanical water meter comprises a metering gear set (36) for metering transmission and a water supply quantity display wheel (52); the valve (5) comprises a valve body (6), an Internet of Things circuit board (1) for controlling the opening of the valve (5) and a mechanical control mechanism for the valve (5) to automatically close when there is no electricity; It is characterized in that A valve (5) is installed on the water supply passage (53) of the mechanical water meter (50) so that the valve can be closed automatically when there is no electricity and the water supply needs to be stopped due to the failure to receive water charges, the water meter being attacked, the battery being out of power, circuit failure, or mechanical failure. The valve (5) is in an original stable state in which it is automatically in a closed state when not controlled. In the process of opening the valve (5), the driving arm (83) of the micro-reduction motor (19) drives the control arm (13) to rotate, and the magnets 1 (11) on the control arm (13) that have not rotated to the respective midlines above the magnetic slide valve (9) during the rotation, the repulsive force between the magnets 1 (11) on the control arm (13) and the magnetic slide valve (9), and the attraction force between the magnets 2 (12) on the control arm (13) and the magnetic slide valve (9) provide the control arm (13) with the same polarity. 3) kinetic energy of rotation in the valve closing direction, so that when the valve (5) is opened, the energy required for closing the valve (5) is stored in the relative displacement of the magnet 1 (11), the magnet 2 (12) and the magnetic slide valve (9); the internal structure of the valve (5) is composed of a valve body (6), a rubber bowl (7), a lever (8), a magnetic slide valve (9), a support rod (27) and a slide valve (32); the rubber bowl (7) is provided with a pilot hole (28), a drain hole (29) and an ear (30); a cloth curtain (54) is provided inside the wall of the rubber bowl (7) as a reinforcing rib, a reinforcing plate (31) for increasing the compressive strength is fixed in the double-layer interlayer at the bottom of the cloth curtain (54), a guide rod (35) is provided on the reinforcing plate (31), and the reinforcing plate (31) and the double-layer cloth curtain (54) are connected by reinforcing strips ( 71) are fixed together; the outer structure of the valve (5) is composed of a valve frame (10), a control arm (13), a drive arm (83), a micro reduction motor (19), and a valve bracket (63); wherein the control arm (13) is equipped with a magnet 1 (11), a magnet 2 (12), a spring clamp 1 (15), a spring 1 (88), a spring clamp 3 (17), a spring 3 (90), and a power-off action rod (20); a self-closing valve spring (48) is installed between the slide valve (32) in front of the leakage hole (29) and the valve frame (10); the drive arm (83 acts on a switch K2 (26) installed on the valve frame (10) through the power-off action rod (20); the metering gear set (36) in the metering gear box (49) ), meshingly connected with the counting and dosing wheel (64) through a transition gear (39); the counting and dosing wheel (64) has a dosing shaft (65); the control notch 1 (66) on the dosing shaft (65) corresponds to the position of the spring clamp 1 (15) on the control arm (13); the control notch 3 (68) on the dosing shaft (65) corresponds to the position of the spring clamp 3 (17) on the control arm (13); a rotating shaft (21) is arranged in the fan-shaped groove (93) on the control arm (13); the fan-shaped groove (93) limits the driving range of the driving arm (83) on the control arm (13); the Internet of Things circuit board (1) in the upper housing (51) of the water meter has corresponding interactive communication or password communication, wireless remote data transmission, data exchange, control, charging, and protocol management functions;The invention also has a forced power-on awakening function; the Internet of Things circuit board (1) has a power drive circuit capable of executing a valve opening (5) instruction and driving a micro-reduction motor (19); the IC card inside the circuit board (1) is assigned to each water meter a different and unique water meter code (62) or a two-dimensional code (91) and has corresponding storage information; the water meter has a communication method (60) for contacting the water supply management party outside; the numbers displayed on the mechanical character wheel (52) of the water supply volume of each water meter and the internal IC card information of each water meter circuit board (1) correspond to the corresponding water meter information and management content in the centralized management computer; the power-on bump (34) on the control arm (13) acts on the power-on switch K1 (25) installed on the valve frame (10), the circuit board (1) is powered on, and the circuit board (1) is powered on and the micro-reduction motor (19) is powered on when the circuit board (1) charges and meets the water supply conditions; pressing the emergency button (3) on the water meter housing (80) can power on the circuit board (1) and start the circuit board (1) to work.

2. The IoT water meter capable of working without electricity according to claim 1, characterized in that: A self-closing valve spring (48) is installed between the slide valve (32) and the valve frame (10); the driving arm (83) of the micro reduction motor (19) drives the control arm (13) to rotate and open the valve (5); the magnet 2 (12) on the control arm (13) does not rotate to the respective center lines above the magnetic slide valve magnet (33) in the magnetic slide valve (9) through the valve frame (10); the magnet 2 (12) and the magnetic slide valve magnet (33) have the same repulsive force, which provides the control arm (13) with kinetic energy to rotate in the valve closing direction; the magnetic slide valve (9) acts on the slide valve (32) for opening / closing the leakage hole (29) through the lever (8) and the self-closing valve spring (48), so that when the valve (5) is opened, the energy required for closing the valve (5) is stored in the relative displacement between the magnet 2 (12) and the magnetic slide valve (9) and the deformation of the self-closing valve spring (48) in compression.

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