Novel Internet of Things intelligent gas meter capable of working without power supply

Abstract

The invention discloses a novel Internet of Things intelligent gas meter capable of working without power supply. A mechanical gas meter has the functions of gas supply, metering, unified mechanical metering display and valve closing; the superposed circuit on the mechanical gas meter has the functions of charging, managing and opening a valve; a valve capable of being automatically closed without electricity when control is not added is installed on a gas supply channel in the gas meter, gas charge closed-loop management gas supply conditions are not met when gas charge is not received, the valve is attacked and damaged, mechanical faults, circuit faults and battery power shortage and lack are all caused, and the valve is automatically closed without electricity after a round of water supply is completed; the circuit converts the supplied gas volume physical quantity into the collected electronic digital currency quantity in each round of gas supply process, and the gas meter is recovered to a new round of gas supply initial state after charging; closed-loop payment exchange between physical goods and electronic currency is realized; mechanical / electronic double-metering and double-display of an existing electronic gas meter which is converted into electronic metering through electromechanical conversion and then converted into electronic currency for the second time are changed; and no pulse equivalent exists.

Description

Technical Field

[0001] The present invention relates to a flow measurement device; more specifically, to a new type of Internet of Things smart gas meter that uses a central management computer to centrally / decentrally manage, charge, and control decentralized gas supply terminals; the circuits in the device do not require power during the gas supply process, and are only powered on instantaneously during each round of gas supply. The device uses the Internet of Things for intelligent charging management and opens valves installed in the device; and the device does not require power when gas supply conditions are not met, automatically shutting off valves in the device without the need for power. Background Art

[0002] Currently, most publicly available electronic information-based diaphragm gas meters (commonly known as gas meters) with management and control features valves installed in the gas supply path within the mechanical meter. These valves, typically motorized, solenoid, or rubber valves, are driven open and closed by a micromotor and its mechanical reduction mechanism. The valve's opening and closing are controlled by circuitry built into the mechanical meter and by electronic circuits that communicate with a central management computer for data exchange. This on / off control can be decentralized, but more often, it employs a combination of centralized and decentralized control. These electronic circuits within the gas meter, particularly those utilizing intelligent IoT technology, are effectively improving their safety and practical applicability. Therefore, for distributed physical terminal points like gas supply networks, the IoT's intelligent, interconnected, decentralized and centralized management represents the optimal application of electronic information technology. Regarding mechanical gas meters, currently available mechanical diaphragm gas meters primarily utilize a diaphragm-type volumetric mechanical detection and measurement method, detecting the volume of gas passing through the meter. A mechanical digital wheel (digital wheel) or a digital indicator on the top of a gear displays the instantaneous and accumulated flow readings. Mechanical diaphragm gas meters are stable and reliable in detection and metering, and the technology is mature. The non-electrical measurement technology of electronic information charging gas meters is to superimpose non-electrical measurement devices on the mechanical gas meter. For example, a magnet is installed on a rotating metering gear, and the magnet passes over a magnetically sensitive reed switch or a magnetically sensitive semiconductor Hall element to obtain an electronic pulse signal; or a light source is converted into a light pulse digital coding signal or an infrared light source is converted into a corresponding electronic digital coding signal through mechanical rotation. In this way, the gas flow signal passing through the mechanical gas meter is converted into electronic pulse digital information through such electromechanical conversion (also known as analog / digital conversion or A / D conversion in electronic engineering technology), thereby obtaining an electronic reading of the mechanical gas meter flow and accumulating it into a cumulative flow reading. The gas 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 user information, collects gas fees based on corresponding management conditions and policy requirements (such as tiered gas prices, ensuring gas supply despite livelihood debts, etc.), and then converts the electronic digital quantity of the gas fee into the analog quantity of gas supply (D / A conversion) to control the valve in the gas meter to supply gas to the gas pipe.

[0003] As can be seen from the above description, existing electronic information-based gas meters use both mechanical and electronic metering data for gas flow, resulting in two metering readings: electronic digital display of gas flow and mechanical dial display of gas flow. This dual metering approach, combined with both electronic and mechanical metering, allows for both electronic and mechanical control. This dual metering approach is subject to significant structural flaws: the simultaneous presence of both mechanical and electronic metering data can lead to two different metering results. This means that daily gas supply, usage, and billing management all rely on electronic information data. The metering detection, transmission, control, and display results are mechanical data, while the electronic data is merely a product of electronic pulses generated during the mechanical detection and metering process. This allows for two different metering readings for a single usage data point: payment is based on the electronic pulse artifact, and control of gas supply and usage is also based on the electronic pulse artifact. Furthermore, in actual management, the electronic data may be inconsistent with the mechanical data. In the event of discrepancies between the mechanical and electronic data points, the gas management department may determine the larger reading, the mechanical display data, or the electronic billing execution data. 2. When high power is required to drive a micro-reduction motor to close a gas meter's valve, if the pre-installed power supply or auxiliary power source (such as a charging capacitor) is depleted, underpowered, or unable to supply high current for various reasons, the meter's motor cannot be driven to close the valve, inevitably leading to loss of control of the electronic meter. 3. Existing electronic meters require 24 / 7 uninterrupted power, even if it's only a minimal amount during a circuit's dormant state. This power supply is essential for electronic metering pulses to function. A power failure renders metering, fee deductions, and valve closing impossible. If one or more of these functions malfunction, the electronic meter's management functions cease to function. However, even the world's highest-quality batteries currently have a certain rate of sudden death within their normal service life. 4. In particular, if a magnet resides within the threshold-sensitive zone of a reed switch or magnetic Hall effect element when gas supply is shut off, multiple electromechanical conversion count pulses may be generated. This presents a significant risk of metering conversion errors. 5. In various standards including China's national standards GB, GB / T, as well as various departmental standards and industry standards, electromechanical conversion is a secondary conversion: the first time is the conversion of mechanical measurement into electronic measurement, mechanical measurement + electronic measurement, and the second time is the conversion of electronic measurement into electronic currency. Summary of the Invention

[0004] The present invention aims to develop an IoT-enabled smart gas meter that operates completely off-grid throughout the gas supply process, except for the instantaneous power-up required to collect gas fees. Metering, management, charging, and valve control all utilize a single mechanical metering readout. The mechanical meter within the IoT-enabled smart gas meter performs the following functions: mechanically detecting and measuring gas volume, displaying instantaneous flow rate, transmitting metered values, and displaying cumulative metering. It automatically closes the valve when power is lost due to uncollected gas fees, damage from an attack, mechanical failure, circuit failure, battery failure, or other conditions that prevent closed-loop gas supply management. The circuitry of the IoT-enabled smart gas meter is responsible for charging, management (including compliance with policies such as tiered gas pricing and overdrafts due to overdue gas fees), and valve opening after charging. If the user's gas fee is not collected, the meter automatically closes the valve within the meter and stops supplying gas. This meter automatically requests payment through multiple notifications, such as text messages, WeChat, and phone calls, to notify the user of the fee information and request payment. This requires no power or in-person visits.

[0005] The first problem solved by this invention is the dual metering problem of mechanical and electronic metering, achieving unified metering. The system displays metering results mechanically and billing results electronically. This invention ensures that when mechanical metering data meets a billing unit, a corresponding billing status appears. The next gas supply cycle only begins after feedback confirms receipt of the gas fee.

[0006] The second technical problem solved by the present invention is the problem of closing the mechanical valve in the gas meter when the gas supply conditions are not met; the present invention installs a valve that automatically closes without electricity in the mechanical gas meter: during the process of opening the valve, the energy required to close the valve is stored in the displacement of the magnet and the deformation of the spring.

[0007] The third technical problem solved by the present invention is that electronic gas meters cannot work normally without electricity. Since the present invention abandons the electronic pulse measurement, electromechanical conversion and other links, this problem is completely solved.

[0008] The fourth technical problem solved by the present invention is the problem of closed-loop management of charging. Since the metering detection, instantaneous metering display, cumulative metering display, and valve closing when the gas supply conditions are not met of the gas meter are all completed by a mechanical structure, the collection of gas fees and the opening of the valve after charging are completed by the circuit. The volume of gas supply in each round is converted once into the amount of electronic digital currency for collecting gas fees. If the circuit cannot collect the gas fees, the valve opening drive will not be started; the closed-loop management of charging and gas supply is completely solved, and a highly reliable closed-loop payment exchange of electronic currency and physical goods is realized.

[0009] The technical solution adopted in the present invention is:

[0010] A solution is provided: a valve that automatically closes when power is lost is installed on the gas supply path within a mechanical gas meter. This mechanical gas meter is then overlaid with an IoT smart circuit to create an IoT smart gas meter. The mechanical functions of this IoT smart gas meter include gas supply, mechanical detection and metering, instantaneous metering display, cumulative metering display, and valve closure when power is lost. This valve automatically closes when power is lost, necessitating a loss of gas supply, mechanical failure, battery failure, circuit failure, or damage from an attack. The function of the IoT smart electronic circuit superimposed on the gas meter is to power on for communication, charging, and management during each round of charging, including setting N times of arrears and overdrafts and providing various information notifications to display the gas fee collection situation; converting the volume of each round of gas supply into electronic digital currency; specifically, the IoT smart gas meter will not be powered on when supplying gas or not, and the circuit will only be powered on when charging; but when the user inquires, it can be manually powered on regardless of whether gas is supplied or not, and each gas meter is given a unique code and QR code associated from the internal circuit to the external mark by the IC circuit in the meter, and information is exchanged with the central management computer through various communication networks, IoT smart information networks, IC card carrier information transmission, etc. During each round of charging and gas supply, the circuit is instantly powered on and meets the gas supply conditions, and the motor in the meter is started to restore the control mechanism to the initial state of the new round of gas supply; once the electronic instruction is executed and completed, it has the characteristic of being unconditionally forced to continue execution by the mechanical part and cannot be revoked. A brief summary is: 1. Mechanical gas meter gas supply metering and valve closing; 2. Circuit charging and valve opening; 3. Mechanical unified metering and display; 4. One-time metering / currency conversion; 5. Closed-loop management of charging; 6. Valve closing and valve opening for charging when there is no electricity.

[0011] The main invention methods or ideas of the technical solution are:

[0012] A valve (5) is installed on the gas supply passage (53) of the mechanical gas meter (50) to stop the gas supply when the gas supply conditions are not met, such as the gas fee is not received, the gas meter is attacked, the battery is out of power, or the circuit is faulty, or the mechanical fault occurs. The valve (5) can also be closed automatically when there is no power. The original stable state of the valve (5) is automatically in the closed state when it is 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. The magnet 2 (12) on the control arm (13) that has not rotated to the center line above the magnetic slide valve (9) during the rotation of the mechanical gas meter housing (51) and the valve frame (10) and the magnetic slide valve (9) repel each other with the same polarity, and the slide valve (32) is pried through the lever (8) and the self-closing valve spring ( 48), opens the valve (5), provides the kinetic energy for the control arm (13) to rotate in the valve closing direction, and at the same time as opening the valve (5), the energy required for closing the valve (5) is stored in the deformation of the compressed self-closing valve spring (48); the internal structure of the valve (5) consists of a valve body (6), a valve frame (10), a rubber bowl (7), a lever (8), a magnetic slide valve (9), a support rod (27), a slide valve (32), and a self-closing valve spring (48); the self-closing valve spring (48) is on the slide valve (32), and the other end of the self-closing valve spring (48) acts on the valve frame (10); 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, and the cloth curtain ( A reinforcing plate (31) for increasing the compressive strength is fixed in the bottom double-layer interlayer of the valve (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 fixed together by a reinforcing strip (71); the outer structure of the valve (5) is composed of a control arm (13), a driving arm (83), a micro-reduction motor (19), and a valve bracket (63); wherein the control arm (13) is provided with 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 driving arm (83) acts on a switch K2 (26) installed on the housing (51) of the mechanical gas meter through the power-off action rod (20); the meter in the metering gear box (49) is The metering gear set (36) is meshed and connected with the counting and quantitative wheel (64) through the transition gear (39); the counting and quantitative wheel (64) has a quantitative shaft (65); the control notch 1 (66) on the quantitative shaft (65) corresponds to the position of the spring clamping knife 1 (15) on the control arm (13); the control notch 3 (68) on the quantitative shaft (65) corresponds to the position of the spring clamping knife 3 (17) on the control arm (13); the fan-shaped groove (93) on the control arm (13) has a rotating shaft (21); the fan-shaped groove (93) limits the driving range of the driving arm (83) on the control arm (13); the Internet of Things intelligent circuit board (1) in the gas meter housing (51) has corresponding interactive communication or password communication, data exchange, control, charging, and protocol management functions;The invention also has a forced power-on and wake-up working function; the Internet of Things intelligent circuit board (1) has a power drive circuit capable of executing the valve opening (5) instruction and driving the micro reduction motor (19); the IC card inside the circuit board (1) is assigned to each gas meter a different and unique gas meter code (62) or a two-dimensional code (61) and has corresponding storage information; the gas meter has a communication method (60) for contacting the gas supply management party outside the gas meter; the number displayed on the gas supply volume mechanical wheel (52) of each gas meter and the internal IC card information of each gas meter circuit board (1) correspond to the corresponding gas 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 mechanical gas meter housing (51), and the circuit board (1) is powered on. When the circuit board (1) charges and meets the gas supply conditions, the micro reduction motor (19) is powered on and driven; pressing the emergency button (3) on the gas meter housing (80) can power on the circuit board (1) and start the circuit board (1) to work. ;

[0013] The automatic reverse valve closing in case of failure is explained as follows: during the air supply, the metering gear rotates, the spring knife 3 (17) slides over the control notch 3 (68) of the quantitative shaft (65), and the control arm (13) presses the normally open switch K1 (25), the circuit board (1) is powered on, and the charging is performed. If the charging is unsuccessful due to power outage, circuit failure, or no gas fee, or a destructive attack or mechanical failure has occurred, in short, the circuit cannot give a driving valve opening instruction, and the air supply is continued until the end of this round of air supply. The spring knife 3 (17) slides over the control notch 3 (68) of the quantitative shaft (65), the control arm (13) leaves the magnetic slide valve (9), and the self-closing valve spring (48) pushes the slide valve (32) to block the drain hole (29), and the valve (5) automatically closes.

[0014] The following is some explanation of the invention method or ideas:

[0015] In this invention scheme, since the charge management of the present invention is a potential signal of the mechanical switch closure, not a pulse signal, it will not disappear instantly. Only after confirming the receipt of the gas fee, the valve opening instruction is issued. The valve opening instruction will not disappear after the valve opening task is completed. There is no structure of repeated charging in one round of gas supply, so it is a completely reliable charge management. In order to prevent the occurrence of malfunction at the critical position of mechanical power-on (it will never occur in the design, but it can also be considered in the industrial reliability redundancy design, and it can also be considered to add an anti-malfunction interference function, such as a delayed power-on integration circuit, etc.), the quantitative shaft (65) on the counting quantitative wheel (64) drawn from the gas metering gear set (36), the control notch 1 (66), the control notch 3 (68) on the quantitative shaft (65) and the spring clamping knife 1 (15), the spring clamping knife 3 (17) are one-to-one corresponding. The magnet 2 (12) rotates to the top of the magnetic slide valve (9), not to the top of the complete overlap, but to the top of the center line of the two magnets, so that the repulsive force between the magnetic slide valve (9) and the magnet 2 (12) will point to the valve closing direction. One point worth mentioning is that in actual use of the new type of IoT smart gas meter that can work without electricity, since the user has paid or stored enough gas fees, or the gas supply management party has set enough pre-gas quotas, in each round of gas supply (for example, set to 1 cubic meter), a gas fee collection-driving-restoration to the initial state of a new round of gas supply will be generated when the gas is supplied to about 1 / 3 or 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.

[0016] The implementation of the present invention has the following beneficial effects:

[0017] 1. The present invention realizes unified mechanical metering and metering display readings, which completely solves the major structural defect of the existing gas meter with both mechanical metering and electronic metering, and the electronic metering may show different values.

[0018] 2. The present invention realizes the off-line operation of household electrical instruments; breaks through the classic mode that traditional non-electrical quantity electrical measurement technology must rely on uninterrupted power supply for normal measurement operation; and improves the stability and reliability of gas supply and measurement.

[0019] 3. The built-in non-electric valve of the present invention can close the valve without on-site visits when gas fees have not been received, the gas meter circuit has no power or is out of power, or there is a mechanical or electronic failure, or it is attacked and damaged, thereby greatly improving the quality and efficiency of management.

[0020] 4. The present invention realizes the closed-loop payment exchange between electronic currency and physical goods. Its input (payment and charging) and output (gas 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 gas supply, the machine is powered on and the circuit is charged only when the gas fee is charged. If the gas fee is not collected, the gas 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 the gas fee, and the gas supply is continued until the gas fee has been paid, and 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 forced to continue to be executed by the mechanical part and cannot be revoked, which is convenient for users to use and convenient for maintenance and management of gas supply managers, unifying the interests of users and managers.

[0021] 5. The structure of charging one fee for one round of gas supply in the present invention conveniently meets the policy management of tiered gas prices and the people's livelihood requirements of N-times overdraft and debt-based gas supply.

[0022] In short, the present invention proposes a good solution for the intelligent management of the gas supply Internet of Things, and provides powerful charging, control, and execution means for the intelligent management of the electricity-free Internet of Things from the perspective of equipment and technology; BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0024] Figure 1 Schematic diagram of the structure of a new IoT smart gas meter that can work without electricity

[0025] Figure 2 Schematic diagram of the new IoT smart gas meter valve that can work without electricity and automatically shut down when there is no electricity

[0026] Figure 3 Schematic diagram of the valve drive recovery open state of the new IoT smart gas meter that can work without power

[0027] Figure 4 Mechanical process control diagram of a new IoT smart gas meter that can operate without electricity

[0028] Figure 5 Closed-loop payment exchange control diagram for charging and supplying gas using a new IoT smart gas meter that can operate without electricity

[0029] Figure 6 Circuit diagram of a new IoT smart gas meter that can operate without electricity

[0030] Figure 7 Schematic diagram of control arm structure

[0031] Figure 8 Schematic diagram of rubber bowl structure

[0032] Figure 1 It can be used as a summary of the specification.

[0033] 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 12, magnet 2 13, control arm 15, spring clamp 1 17, spring clamp 3 19, micro reduction motor 20, power-off lever 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 gas meter 51. Gas meter housing 52. Word wheel 53. Air supply passage 54. Cloth curtain 55. Mechanical gas meter rear housing 56. Battery box 60. Communication method 61. QR code 62. Gas meter code 63. Valve bracket 64. Counting and dosing wheel 65. Dosing shaft 66. Control notch 168. Control notch 3 69, sealing box cover 70, pillar (71) reinforcement strip 72, external antenna interface 74, sealing strip 78, air outlet end 79, air inlet end 80, IoT smart gas meter housing 81, valve port 83, drive arm 84, control arm shaft 86, lever connecting rod 88, spring 1 90, spring 3 91, circuit board display 92, drive arm shaft 93, drive fan groove 94, sealing ring 95, fastening screw DETAILED DESCRIPTION

[0034] The present invention is implemented as follows: in a mechanical gas meter, the gas flow through the gas meter is mechanically detected and measured by the gas meter volumetric metering box, and is transmitted through the gears of the metering gear set (36) in the metering gear box (49). The measured value is displayed on a mechanical digital wheel (52) to display the cumulative flow and instantaneous flow readings; in the gears of the gas metering gear set (36), an appropriate metering level is set. For example, a household gas meter is set on a 0.1 cubic meter metering wheel, which serves as a counting and quantitative wheel, and is transmitted to a counting and quantitative wheel (64) through a metering transition wheel (39). One rotation of this counting and quantitative wheel (64) is 1 cubic meter of gas flow, which serves as the basic unit of charge for each round of gas supply. If a larger diameter gas meter with a larger gas supply volume is used, a counting and quantitative wheel of a higher metering level is correspondingly set. Two quantitative control notches, namely 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 control notch 1 (66) is a spring clamp 1 (15) on the control arm (13), and corresponding to control notch 3 (68) is a spring clamp 3 (17); a spring 1 (88) is provided in the spring clamp 1 (15), and a spring 3 (90) is provided in the spring clamp 3 (17); a spring 1 (88) is added to the rear of the spring clamp 1 (15), and a spring 3 (90) is added to the rear of the spring clamp 3 (17), so as to increase the reliable guarantee function spring in the reliability redundancy design. The spring clamp 1 (15), the spring clamp 3 (17), the spring 1 (88), and the spring 3 (90) are assembled and installed on the control arm (13).The control arm (13) is provided with a control arm gear (42) for engaging with the driving arm (83); the opening of the control arm (13) is achieved 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). The magnet 2 (12) on the control arm (13) and the magnetic slide valve magnet (33) of the magnetic slide valve (9) are repelled by the same polarity through the valve frame (10) of the mechanical gas meter housing (51). 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) leaves the drain hole (29). The rubber bowl (7) moves upward, the rubber bowl (7) leaves the valve opening (81), the guide rod (35) moves 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 less than; the driving arm (83) drives the middle 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 valve opening drive is completed once.During the air supply, the magnet 2 (12) on the control arm (13) is subjected to the same-sex repulsion force of the magnetic slide valve magnet (33), which becomes a force in the direction of closing the valve. The power-off action rod (20) on the control arm (13) gradually leaves the driving arm (83) during the rotation, and the switch K2 (26) returns to the normally closed state; during the continued air 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 the circuit to start the switch K1 (25), the switch K1 (25) is closed, the circuit board (1) is powered on, interactive password communication occurs, and charging occurs; if charging is successful, the power drive circuit of the circuit board (1) is energized, the micro reduction motor (19) rotates, the driving arm (83) rotates, and the driving 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; one round of air supply, the driving arm (83) rotates one circle, while the control arm (13) rotates about 10 degrees, and the spring clamp knife 3 (17) and the spring clamp knife 1 (15) move only a few millimeters; if the charge is unsuccessful, the user is informed to pay the gas fee through sound, light, SMS, WeChat and various communication means, and the gas supply continues until the gas volume for which the gas fee has been paid is supplied. The valve does not need to be powered on, nor does the circuit board (1) and the power drive circuit work. The magnet 2 (12) of the control arm (13) is in contact with the magnetic slide valve. Under the action of the repulsive force of the same polarity of the magnet (33), the spring clamp 3 (17) on the control arm (13) passes through the control notch 3 (68). Under the action of the self-closing valve spring (48), the slide valve (32) blocks the drain hole (29). At this time, the magnetic slide valve (9) moves, and the air flow enters the rubber bowl (7) from the pilot hole (28). The rubber bowl (7) 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 or in standby mode. In normal gas supply operations where there is no outstanding gas fee, bank deduction or unified settlement of gas fees, the situation of closing the valve is impossible. The circuit board (1) is also not powered on. Except for the charging process and the process of returning to the initial state of a new round of gas supply, the entire gas supply process is completely powered off.

[0035] The self-closing valve spring (48) can be a compression spring, or a leaf spring, a plate spring, a spring wire spring or the like that can store deformation elastic force.

[0036] The following is an explanation using example diagrams. In the example diagrams, some minor parts or parts not necessary for description in the original structure of the gas meter have been appropriately omitted. In different views, the positions of various components have been adjusted to make their functions clearer. Furthermore, the following descriptions have been appropriately omitted for details already explained in detail.

[0037] Figure 1This is a schematic diagram of the mechanical control structure of the IoT smart gas meter, combined with Figure 2 Schematic diagram of the new IoT smart gas meter valve that can work without electricity and automatically shut down without electricity, and Figure 3 The schematic diagram of the valve driving and opening state recovery of the new type of IoT smart gas meter that can work without power is used to illustrate; 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 valve was shut off because the gas bill was not received. The whole process has been explained in detail above. Figure 4 This is a mechanical program control diagram for a new type of IoT smart gas meter that can operate without electricity. This control diagram briefly illustrates the working process of the invention, which has been described in detail above. Figure 5 It is a closed-loop payment exchange control diagram for charging and gas 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 gas 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 gas supply are a complete input / output closed-loop control relationship; considering the particularity of gas supply and people's lives, N times of overdraft of several cubic meters of gas can be set. Even if the gas fee is not received, the gas will not be cut off immediately, and gas supply will continue to be provided to provide gas users with multiple buffers. Figure 6 This is a block diagram of the circuit principle of a new type of IoT smart gas meter that can work without electricity. In the present invention, among the functions superimposed on the gas meter, the function of the circuit is only to charge and restore the gas meter to the initial state of the next round of gas supply after charging; various types of IoT smart circuits superimposed on the gas meter, such as smart IC cards (contact or contactless), remote transmission intelligence, wireless remote transmission, IoT smart circuits, etc., only have the most basic function of charging for the present invention, and starting the power drive circuit to restore the gas meter to the initial state of the next round of gas 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 redundant description is not given here.

Claims

1. A new type of IoT smart gas meter that can operate without electricity, including a diaphragm gas meter, a valve installed in the gas supply path of the gas meter, and an IoT smart circuit superimposed on the gas meter; The diaphragm gas meter comprises a metering gear set (36) and a metering display wheel (52); the valve (5) comprises a valve body (6), an Internet of Things intelligent circuit board (1) for controlling the valve (5), and a mechanical control mechanism of the valve (5); It is characterized by: The valve (5) installed on the gas supply passage in the gas meter is automatically closed when not controlled by the self-closing valve spring (48); the mechanical functions of the diaphragm gas meter are gas supply, mechanical metering, mechanical character wheel (52) displaying metered volume, and closing the valve (5); the functions of the circuit board (1) are charging, fee display, management, and opening the valve (5); the valve (5) is automatically closed when there is no power when the gas supply conditions are not met; during each round of gas supply, the control arm (13) instantly powers on the circuit board (1) to supply gas. The volume physical quantity is converted into the electronic digital currency quantity; after charging, the circuit board (1) powers on the micro reduction motor (19) and drives the control arm (13) to restore the gas meter to the initial state of a new round of gas supply, thereby realizing the closed-loop payment exchange between electronic currency and physical goods; the control arm (13) has a magnet 2 (12), which repels the magnetic slide valve (9) with the same polarity when opening the valve (5), and acts on the slide valve (32) through the lever (8), and the energy required to close the valve (5) is stored in the compressive deformation of the self-closing valve spring (48).

2. The novel IoT smart gas meter capable of operating without electricity according to claim 1 is characterized in that: The internal structure of the valve (5) is composed of a valve body (6), a valve frame (10), a lever (8), a magnetic slide valve (9), a support rod (27), a slide valve (32), and a rubber bowl (7); the external structure of the valve (5) is composed of a valve bracket (63), a driving arm (83), a micro reduction motor (19), and a control arm (13).

3. The novel IoT smart gas meter capable of operating without electricity according to claim 1 is characterized in that: The micro reduction motor (19) drives the control arm (13) through the driving arm (83). The magnet 2 (12) on the control arm (13) repels the magnetic slide valve (9) with the same polarity through the gas meter housing (51) and the valve frame (10). The lever (8) acts on the slide valve (32) to open the valve (5) and compress the self-closing valve spring (48).

4. The novel IoT smart gas meter capable of operating without electricity according to claim 1 is characterized in that: The control arm (13) is provided with a spring clamping knife 1 (15), a spring 1 (88), a spring clamping knife 3 (17), and a spring 3 (90), which correspond to the control notch 1 (66) and the control notch 3 (68) on the quantitative shaft (65) of the counting quantitative wheel (64) one by one, and interact with each other to control the air supply process.

5. The novel IoT smart gas meter capable of operating without electricity according to claim 1 is characterized in that: The Internet of Things intelligent circuit board (1) has corresponding interactive communication and password communication, wireless remote data transmission, data storage and exchange, control, charging, and Internet of Things protocol management functions to achieve the functions of charging, management, and opening the valve (5); outputs a gas supply instruction after successful charging; the Internet of Things intelligent circuit board (1) has a power drive circuit that can execute the valve opening (5) instruction and drive the micro reduction motor (19); the IC card inside the circuit board (1) is assigned a different and unique gas meter code (62) to each gas meter, which is associated with the QR code (91) information on the housing (80) of the Internet of Things intelligent gas meter; and has a forced power-on awakening function, and pressing the emergency button (3) on the housing (80) of the Internet of Things intelligent gas meter can power on the circuit board (1) and start the circuit board (1) to work.

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