Intelligent gas meter capable of working without power supply

Abstract

A mechanical gas meter has the functions of gas supply metering and valve closing, and a circuit has the functions of charge management and valve opening; a non-electric valve which is closed when control is not added is mounted on a gas supply passage in the gas meter; the valve can be automatically turned off without power, and gas supply is stopped without receiving gas charge, being attacked and damaged, having mechanical faults, circuit faults and battery power shortage and power shortage; the metering function of the gas meter is a mechanical gas meter, and the management and charging functions of the gas meter are a circuit; the metered mechanical switch state is mechanically detected to power on the circuit, and after charging is confirmed by the circuit, a new round of gas supply state is recovered; when the gas supply condition is not met, payment is notified through various information modes, gas is continuously supplied until the charged gas quantity is reached, and then the valve in the gas 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 are avoided, only unified metering conforming to a metering method is achieved, and double metering and double display of an existing electronic gas meter are thoroughly changed.

Description

Technical Field

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

[0002] At present, most of the known public electronic information charging diaphragm gas meters with management and control (commonly known as gas meters) are equipped with valves on the gas supply path of the mechanical gas meter. Most of the valves used are ball valves, and a small number of them are ceramic valves, pilot valves, stop 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 circuit superimposed on the mechanical gas meter and the electronic circuit with the central management computer for data exchange and communication functions. The control method of opening / closing can be decentralized, but more often it is a comprehensive control combining centralized and decentralized control. The electronic circuits on the gas meter include IC cards, smart IC cards and their card readers; some IC cards are contact IC cards, and some are contactless IC cards; some gas meters require wired communication lines to read, and the current trend is to use interactive wireless password communication technology; 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 the dispersed physical terminal gas supply points such as the gas supply network, the intelligent decentralized / centralized management of objects-to-object connections should be the best application of electronic information technology at present. In terms of mechanical gas meters, the existing mechanical diaphragm gas meters at this stage mainly use the volumetric mechanical detection and measurement method to detect the volume of gas flow through the gas meter, and use the mechanical digital roller (character wheel) or the digital indication on the top of the gear to display the instantaneous flow and cumulative flow readings. Mechanical diaphragm gas meters have stable and reliable detection and metering capabilities, and the technology is mature. The non-electrical quantity electrical measurement technology of electronic information charging gas meters is to superimpose non-electrical quantity 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, thereby converting the gas flow signal passing through the mechanical gas meter into electronic pulse digital information through such electromechanical conversion (also known as analog / digital conversion or A / D conversion in electronic technology), thereby obtaining an electronic reading of the flow of the mechanical gas meter 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 the user's information, collects gas fees based on corresponding management conditions and policy requirements (such as tiered gas prices, etc.), and then converts the electronic digital quantity of the collected gas fees into the analog quantity of gas supply (D / A conversion), and controls the valve in the gas meter to supply gas to the gas pipe.

[0003] From the above description, we can know that 1. The existing electronic information charging gas meter has mechanical data and electronic data of the gas volume, and has two kinds of metering readings, using electronic digital display of the gas volume, and mechanical word wheel display of the gas volume, and using two kinds of metering readings to realize electronic and mechanical dual control, and use such dual measurement for charging management. This method has a major structural defect: there are two kinds of metering data, mechanical measurement and electronic measurement, at the same time. That is to say, daily gas supply, gas use and payment management are all electronic information data, the metering detection, transmission, control and display results are mechanical data, and the electronic data is only an electronic pulse product in the process of mechanical detection and metering; one gas usage data has two different metering readings: the payment is based on the electronic pulse product, and the control of gas supply and use is also an electronic pulse product; and the electronic data may be inconsistent with the mechanical data in actual management. The gas supply and gas pipeline department may use the larger reading as the standard when the mechanical / electronic numbers are inconsistent, or it may use the mechanical display data as the standard, or it may use the electronic fee execution data as the standard, and the other data is only used as reference data; 2. When a large power is required to drive the micro-reduction motor to close the valve in the gas meter, if the power supply or auxiliary power supply (such as charging capacitor, etc.) has no power, is underpowered, and cannot supply large current for various reasons, it cannot drive the gas meter motor to close the valve, which will inevitably lead to the loss of control of the electronic information type gas meter; especially the ball valve has a high probability of losing control of the switch due to its inherent characteristics. 3. Existing electronic information gas meters must be powered 24 hours a day, 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 fails, metering, deduction, and valve closing cannot be achieved. If one or more of these functions fail, the management of the electronic gas meter will fail. However, even the best quality batteries in the world currently have a certain sudden death failure rate during their normal service life; Summary of the invention

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

[0005] The present invention aims to develop an intelligent gas meter with a unified mechanical metering display. From the mechanical detection and metering of the flow of the mechanical gas 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 intelligent electronic circuit is to charge, and meet the policy management requirements of the ladder gas price, etc.; the functions of mechanical detection, metering, and gas supply volume display belong to the mechanical gas meter; the functions of charging and intelligent management of control belong to the circuit; only when charging and deduction are made, the circuit is instantly powered on and works. When the gas fee that the user needs to pay cannot be received, the gas fee information is informed to the user through various information methods, such as sending text messages, WeChat, etc., without starting the circuit or powering on. The intelligent gas meter of the present invention continues to supply the gas volume that has been paid for the gas fee and then automatically closes the valve in the gas meter to stop supplying gas. Similarly, the various data, gas meter codes, numbers, user names, addresses, communication methods, population, gas prices, time, ladder prices, deduction accounts, etc. that exist in the existing charging management using centralized / decentralized management computers do not need to be changed. The gas meter circuit is only instantly powered on and works when charging. It is necessary to realize unified metering, single transmission and display of gas supply and consumption data, stable and reliable closed loop of charging and supplying gas, prevent illegal non-destructive attacks, and be able to shut off the valve inside the meter if there is no gas fee and no electricity. It is an intelligent gas meter that can work without electricity and is adapted 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 of mechanical and electronic devices realizes unified metering; the metering result is displayed mechanically and the charging result is displayed electronically. The present invention realizes that when the mechanical metering data satisfies a charging unit, a corresponding charging state appears. Only after feedback confirms that the gas fee has been received, the next gas supply cycle is generated; the gas supply data is transmitted and displayed singly, and the closed loop of charging and gas supply is stable and reliable.

[0007] The second technical problem solved by the present invention is the problem of the mechanical valve in the electronic intelligent gas meter closing when there is no gas. The present invention installs a valve that automatically closes without electricity in the mechanical gas meter: in the process of opening the valve, the energy required to close the valve is stored in the displacement of the magnet or the deformation of the spring. If the next round of gas supply fees cannot be collected, or the circuit in the gas meter fails, there is no electricity, or there are various illegal non-destructive attacks, and the user does not install a battery power supply in good faith, the gas meter can continue to supply the gas volume that has been charged without power supply, and then automatically close the valve in the gas 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 gas meters work normally without electricity. At the current stage, electronic gas meters still have the problem that both internal and external battery power supplies fail, which results in normal mechanical metering of the gas meter, but electronic metering and conversion of mechanical analog data into electronic metering data (A / D conversion) do not work. Since the present invention abandons the electronic metering, A / D conversion and other links, this problem is completely solved.

[0009] The fourth technical problem solved by the present invention is that the metering detection, instantaneous flow rate and cumulative flow rate of the gas meter are all completed by the mechanical structure; the collection of gas fees is completed by the circuit, and the circuit starts the valve opening drive when the gas fee is received. If the circuit cannot collect the gas fee, it will confirm that the fee 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 gas fee collection and gas 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] A solution is provided: a valve that can be closed without electricity is installed on the gas supply path of a mechanical gas meter. When there is no gas consumption, mechanical failure, circuit failure, or attack and damage, the valve can be automatically closed without electricity to stop gas. An intelligent charging circuit is superimposed on this mechanical gas meter, and such a gas meter is used to invent an intelligent gas meter that meets the statutory requirements of the Measurement Law. The mechanical function of the gas meter is mechanical detection and measurement. During gas supply, the mechanical display is instantaneous measurement, and the mechanical display is cumulative measurement reading; the function of the superimposed intelligent electronic circuit is to power on communication, charge, and display the gas fee situation only when charging and deducting fees. It completely replaces the current common analog / digital (A / D) conversion of mechanical measurement into electronic pulses. It is powered on when the user inquires about the gas supply and fee situation, and the fee situation is displayed. In terms of electronic technical structure and usage method, the combination of mechanical structure and electronic technology is used to the maximum extent to prevent various attacks and damages; and a completely closed-loop payment exchange of electronic currency of intelligent technology and physical goods is realized. Specifically, the intelligent gas meter is not powered on when supplying or not supplying gas, and the circuit is powered on only when charging; but it can also be powered on manually when the user inquires.Each gas meter is endowed with a unique code and QR code associated with the internal circuit and 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 circuit structure and function of the huge and scattered gas meter are simplified; the powerful database and management control function of the central management computer are used to collect and process gas supply charge information and send management instructions, and the gas supply is centrally managed, charged, and controlled; instant power-on operation is more conducive to the stable and reliable operation of the gas supply equipment itself, and effectively prevents external electronic attacks; the valve installed in the gas meter can be automatically closed when there is no gas and no electricity, and the management and control are 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 achieved: that is, the output gas supply volume is instantly powered on to start the charging process in the middle of the gas supply, and the result (charging success or failure) is output and fed back to the input end, and after charging verification, metering detection, value transmission, process management, real-time control, the decision to continue gas supply (start) is made. If the charging is unsuccessful, the gas 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 is successful, and a new round of gas supply drive 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 gas fee and the output gas supply volume are always exactly the same; an alarm can be given when the gas supply conditions are not met; during each round of charging and gas supply process, when the circuit is instantly powered on and meets the gas supply conditions, the motor in the meter is started to restore the control mechanism to the starting state of a new round of gas 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 and irrevocably forced to continue to be executed by the mechanical part; when various gas supply conditions are not met and gas cannot be supplied to users, as a special means to ensure gas supply and use for users, a special button is set to prepay the overdraft gas fee, or a conditional circuit opening button is used to provide an emergency gas supply management mechanism; a smart gas 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 gas supply passage (53) of the mechanical gas meter (50) so that the valve can be automatically closed even when there is no electricity when the gas fee is not received, the gas 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 gas 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 between the magnet 2 (12) on the control arm (13) and the magnetic slide valve (9) and the opposite-pole attraction between the magnet 2 (12) on the control arm (13) and the magnetic slide valve (9) are separated by the mechanical gas meter housing (51). The force provides kinetic energy for the control arm (13) to rotate 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, and a reinforcing plate (31) for increasing the compressive strength is fixed in the double-layer interlayer at the bottom of the cloth curtain (54), and a guide rod (35) is provided on the reinforcing plate (31). 1) 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 driving 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 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 metering gear set (36) in the metering gear box (49) is connected to the metering gear box (49) through the transition gear (39) The counting and dosing wheel (64) is meshed and connected; 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 clamping knife 1 (15) on the control arm (13); the control notch 3 (68) on the dosing shaft (65) corresponds to the position of the spring clamping knife 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 intelligent circuit board (1) in the upper housing (51) of the gas 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 intelligent 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 gas meter code (62) or two-dimensional code (91) is assigned to each gas meter on the IC card inside the circuit board (1), and corresponding storage information is stored; the gas meter has a communication method (60) for contacting the gas supply management party outside; the numbers displayed on the gas supply 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.

[0014] If the requirements of automatic reverse valve closing in case of failure, automatic valve closing during destructive attack, or automatic reverse valve closing in case of failure to charge normally are 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) separated by the mechanical gas meter housing (51) 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 gas fee, the valve opening command is issued. The valve opening command will not be powered off and disappear after the valve opening task is completed, and there is no structure of repeated charging in one round of gas supply, so it is a completely reliable fee management. The quantitative shaft (65) on the counting quantitative wheel (64) led from the gas 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 attractive force of the magnet 2 (12) will point to the valve closing direction. One point worth mentioning is that in actual use of the smart gas meter of the present invention that can work without electricity, since the user has paid or stored enough gas fees, or the gas supply management party has set a sufficient advance gas quota, in each round of gas supply (for example, set to 1 cubic meter), a gas fee collection-driving-recovery to the initial state of a new round of gas supply will be generated when the gas supply reaches about half a cubic meter. This process is only the spring clamp 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. This invention realizes the most basic legislative purpose of the Measurement Law: unified measurement standards and measurement display readings. It completely solves the major structural defects of dual measurement, dual display, and dual control in the existing mechanical / electronic metering gas meter. It may put an end to the current electronic information gas meter, which uses both mechanical 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 gas supply and metering.

[0021] 3. The built-in non-electric valve of the present invention can still close the valve when the gas fee has not been received, the gas meter circuit has no power or is out 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 between electronic currency and physical goods. Its input (payment of fees) 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 cannot be 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 fee is continued to be paid. The valve is automatically closed stably without electricity. 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 convenient for the maintenance and management of gas supply managers, unifying the interests of users and managers.

[0023] 5. The structure of charging a fee once for supplying a round of gas in the present invention conveniently meets the policy management requirements of tiered gas prices.

[0024] In short, the present invention proposes a good solution for intelligent management of gas supply, and provides powerful charging, control and execution means for non-electric intelligent management in terms of equipment and technology; it solves the problem of dual measurement of electronic data / mechanical data and dual display metering instruments existing in gas supply pipelines at this stage. 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 intelligent gas meter that can work without electricity

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

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

[0029] Figure 4 Mechanical program control diagram of intelligent gas meter capable of working without electricity

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

[0031] Figure 6 Circuit diagram of smart gas meter that can work without electricity

[0032] Figure 7 Control 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 gas meter 51. Mechanical gas meter front shell 52. Word wheel 53. Air supply passage 54. Cloth curtain 55. Mechanical gas meter rear shell 56. Battery box 60. Communication method 61. QR code 62. Gas 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, air outlet end 79, air inlet end 80, intelligent 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 screen 92, drive arm shaft 93, drive fan-shaped groove 94, sealing ring 95, fastening screw DETAILED DESCRIPTION

[0035] The present invention is implemented as follows: in a mechanical gas meter, the gas flow through the gas meter is measured by mechanical detection of the rotating impeller of the gas 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 metered 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 gas flow metering value transmission wheel, an appropriate metering quantitative level is set, for example, a 15mm / 20mm diameter gas meter commonly used in households is set on a 0.1 cubic meter metering wheel, which serves as a counting quantitative wheel and is transmitted to a counting quantitative wheel (64) through a metering transition wheel (39). One rotation of this counting quantitative wheel (64) is 1 cubic meter of gas flow, which is used as the basic unit of charge for each round of gas supply. If it is a larger diameter gas meter with a larger gas supply, a counting quantitative wheel of a higher metering level is set accordingly. 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); 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 that they can be used as reliable guarantee springs 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 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 opening valve of the control arm (13) is powered on by 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 mechanical gas meter housing (51), 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 closed. ) 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 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 air 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 continued air supply, the spring clamping knife 1 (15) gradually passes through the control notch 1 (66) from the quantitative shaft (65). The spring clamp 3 (17) enters the control notch 3 (68), the power-on protrusion (34) presses 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 carried out; 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, the drive control arm (13) rotates, and the above valve opening process is repeated, and the whole is restored to the initial state of the next round of valve opening; one round of air supply, the drive arm (83) rotates one circle, The control arm (13) rotates about 10 degrees, and the spring clamp knife 3 (17) and the spring clamp knife 1 (15) only move a few millimeters. If the charging is unsuccessful, the user is informed to pay the gas fee through sound, light, text messages, WeChat and various communication means, and the gas supply continues until the gas volume that has been paid is supplied. The valve does not need to be powered on, and the circuit board (1) and the power drive circuit do not need to work. The magnet 1 (11) of the control arm (13) and the magnet (33) of the magnetic slide valve are attracted by opposite poles, and the magnet 2 (12) is in the same position as the magnet (33) of the magnetic slide valve. Under the action of the repulsive force, 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) attract each other, the magnetic slide valve (9) moves upward, through the lever (8), the support rod (27), the lever connecting rod, the slide valve (32) blocks the leakage hole (29) downward, the air flow enters 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 gas supply operation with normal charging, no arrears of gas fees, bank deductions 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.

[0036] 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 gas meter are appropriately omitted; in different views, the positions of the components are also adjusted to make it easier to understand the functions of each component; at the same time, the following descriptions are appropriately omitted for the parts that have been explained in detail above.

[0037] Figure 1 This is a schematic diagram of the mechanical control structure of the IoT gas meter. Figure 2 Schematic diagram of the power-off automatic shut-off state of the smart gas meter valve, and Figure 3 The schematic diagram of the valve driving and restoring opening state of the smart gas meter capable of working 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 valve was shut off because the gas bill was not received. The whole process has been explained in detail before. Figure 4 It is a mechanical program control diagram of an intelligent gas 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 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, it can be set to pay a certain amount of cubic meters of gas in advance. Even if the gas fee is not received, the gas will not be cut off immediately, and the gas supply will continue to give gas users a buffer. Figure 6 It is a block diagram of the circuit principle of an intelligent 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 fees and restore the gas meter to the initial state of the next round of gas supply after charging; various types of intelligent circuits superimposed on the gas meter, such as smart IC cards (contact or contactless), remote transmission intelligence, wireless remote transmission, Internet of Things 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 a new 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 no redundant description will be given.

[0038] Figure 1 It can be used as a summary of the specification.

Claims

1. An intelligent gas meter capable of working without electricity, comprising a diaphragm gas meter, a valve installed on the gas supply path of the diaphragm gas meter, and an intelligent centralized / decentralized charging management control circuit superimposed on the diaphragm gas meter; The diaphragm gas meter comprises a metering gear set (36) for metering transmission and a gas supply quantity display wheel (52); the valve (5) comprises a valve body (6), an intelligent circuit board (1) for controlling the opening of the valve (5) and a mechanical control mechanism for the valve (5) which can automatically close when there is no electricity; It is characterized in that A valve (5) is installed on the gas supply passage (53) of the gas meter (50) so that the gas supply can be stopped when the gas fee is not received, the gas meter is attacked, the battery is out of power, the circuit fails, or the mechanical fails. The valve (5) can be automatically closed even when there is no power. 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 gas meter housing (51) and 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 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 The valve (5) is fixed together with 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), 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 in the metering gear box (49) The group (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 intelligent circuit board (1) in the upper shell (51) of the gas 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 intelligent 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 gas meter a different and unique gas meter code (62) or a two-dimensional code (91) and has corresponding storage information; the gas meter has a communication method (60) for contacting the gas supply management party outside; the numbers displayed on the gas supply volume mechanical character 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 valve frame (10), the circuit board (1) is powered on, and the circuit board (1) is powered on and drives the micro-reduction motor (19) when charging and meeting the gas supply conditions; 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.

2. The smart gas meter capable of operating without electricity according to claim 1, characterized in that: A self-closing valve spring (48) is arranged 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 (9) through the membrane gas meter housing (51) and the valve frame (10); the magnet 2 (12) and the magnetic slide valve (9) have the same repulsive force, and the self-closing valve spring (48) provide 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.

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