Informationized 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 changed.

Description

Technical Field

[0001] The present invention relates to a flow measurement device; more specifically, it relates to an information-based gas meter that uses a central management computer to perform centralized / decentralized management, charging, and control of dispersed gas supply terminals; the circuit in the device does not require power supply during the gas supply process, only instantaneously powers on during each round of gas supply to perform information-based charging management and open the valve installed in the device; when the gas supply conditions are not met, it can automatically shut off the valve in the device without power supply and can work in a power-off state. Background Art

[0002] At the current stage, for electronic information charging gas meters with management control that are publicly known and in common use, most of them install valves on the gas supply path of mechanical gas meters. Most of the valves used are ball valves, and a small part are ceramic valves, pilot valves, etc. They are driven to open / close by a motor and its mechanical reduction mechanism; the on / off of the valve is controlled by a circuit superimposed on the mechanical gas meter and an electronic circuit with the function of data exchange and communication with the central management computer. The control method of on / off can be decentralized, but more often it is a comprehensive control combining centralization and decentralization. And these electronic circuits on the gas meter include IC cards, smart IC cards and their card reading devices; some IC cards are contact IC cards, and some IC cards are non-contact IC cards; some gas meters need to be connected by wired communication lines to read the meter, and currently the use of interactive wireless password communication technology is a major trend; with the development of electronic technology and network technology, especially the use of Internet of Things technology, it is effectively improving its security and the scope of practical application. Therefore, for such scattered physical terminal gas supply points in the gas supply network, the information-based decentralized / centralized management of thing-to-thing connection should be the best application of current electronic information technology. In terms of mechanical gas meters, at the current stage, the existing mechanical gas meters mainly use mechanical detection and measurement methods such as velocity type and "volume method" to detect the volume of gas passing through the gas meter, and use mechanical digital rollers (dials) or numbers on the top of gears to display the instantaneous flow rate and cumulative flow rate readings. The mechanical gas meter is stable and reliable in detection and measurement, and the technology is mature. The non-electricity electrical measurement technology of electronic information charging gas meters is to superimpose non-electricity electrical measurement devices on the mechanical gas meter. For example, a magnet is installed on the rotating measurement gear, and the magnet passes by a magnetic sensitive reed switch or a magnetic sensitive semiconductor Hall element to obtain an electronic pulse signal; or by mechanically rotating to convert the light source into an optical pulse digital signal, converting the infrared light source into a corresponding electronic digital signal, etc. In this way, the gas flow signal passing through the mechanical gas meter is converted into electronic pulse digital information through such an analog / digital conversion method (A / D conversion), so as to obtain the electronic reading of the gas flow of the mechanical gas meter and accumulate it into the cumulative flow rate reading. The gas meter circuit transmits the flow information to the central management computer through a wired or radio communication network and the Internet of Things. The central management computer manages the user's information, etc., and after charging the gas fee in combination with corresponding management conditions and policy requirements (such as stepped gas prices, etc.), it then converts the electronic digital quantity of the charged gas fee into an analog quantity of gas supply (D / A conversion) to control the valve in the gas meter to supply gas to the gas pipeline.

[0003] From the above description, it can be seen that: 1. The existing electronic information charging gas meters have mechanical data and electronic data of the gas volume passed, with two kinds of measurement readings. The gas volume passed is displayed in electronic digits, and at the same time, the gas volume passed is displayed by mechanical dials. Moreover, the dual control of electronics and mechanics is realized by these two kinds of measurement readings, and the charging management is carried out with such dual measurement. This method has major structural defects: there are two kinds of measurement data and two kinds of measurement results of mechanical measurement and electronic measurement at the same time. That is to say, the daily gas supply, gas use, and payment management are all electronic information data. The measurement detection, transmission, control, and display results are mechanical data, while the electronic data is only an electronic pulse forgery during the mechanical detection and measurement process. There are two different measurement readings for a gas use data: the basis for paying fees is the electronic pulse forgery, and the control of gas supply and use is also the electronic pulse forgery. However, the electronic data may be inconsistent with the mechanical data in actual management. When the mechanical / electronic numbers are not unified, the gas supply department may take the larger reading as the standard, or may take the mechanical display data as the standard, or may take the electronic charging execution data as the standard, and the other data is only used as reference data. 2. When a relatively high-power drive is required to drive a micro-reduction electric motor to close the valve in the gas meter, if the configured power supply or auxiliary power supply (such as a charging capacitor, etc.) is out of power, undercharged, or unable to supply a large current due to various reasons and cannot drive the electric motor of the gas meter to shut off the valve, it will inevitably lead to the out-of-control of the electronic information type gas meter; especially for ball valves, the probability of out-of-control of the switch is relatively high due to their inherent characteristics. 3. The existing electronic information type gas meters must be powered continuously for 24 hours. Even if it is a very small power supply in the circuit sleep state, power supply is necessary to generate electronic measurement pulses. If there is a power supply failure, metering, fee deduction, and valve closing cannot be achieved. If one or more of these functions fail, the management of the electronic type gas meter will malfunction and become ineffective. However, currently, even the highest-quality batteries in the world have a certain sudden death failure rate during their normal service life; Summary of the Invention

[0004] During the working process of the present invention, except for instantaneous power-on when collecting gas fees, the entire gas supply process works completely without power; and it 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 undercharged, there is a mechanical failure, or a circuit failure, the valve is automatically shut off without power to stop the gas supply. Unconditionally realize the closed-loop feedback of gas fee input and gas supply output. It is a special control function that automatically reverts to closing when the gas supply conditions are not met.

[0005] The present invention aims to develop an information-based 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 information-based 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 control information management belong to the circuit; only when charging and deducting fees, the circuit is instantly powered on and works. When the gas fee that the user needs to pay cannot be received, the user is informed of the gas fee information through various information methods, such as sending text messages, WeChat, etc., without starting the circuit or powering on. The information-based 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. To achieve unified metering, single transmission and display of gas supply and consumption data, stable and reliable closed loop of charging and supplying gas, prevention of illegal non-destructive attacks, and the ability to shut off the valve inside the meter if there is no gas fee and no electricity, an information-based gas meter that can work without electricity and adapt to the current social, economic and technological development level.

[0006] The first problem solved by the present invention is that the dual metering and dual display metering 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 mechanical valves in electronic information gas meters 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 solved by the present invention is that the electronic gas meter can work normally without power supply. At present, for the electronic gas meters, the internal and external battery power supplies may both fail, which results in normal mechanical metering of the gas meter, but the electronic metering and the conversion of mechanical analog data into electronic metering data (A / D conversion) do not work. Since the present invention abandons the links such as electronic metering and A / D conversion, 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 mechanical structures; the collection of gas fees is completed by a circuit. When the circuit receives the gas fee, it starts the valve opening drive, and when the circuit does not receive the gas fee, it confirms the arrears and does not start the valve opening drive; the A / D conversion and D / A conversion in the electronic / mechanical measuring instruments are completely cancelled; thus, a full closed-loop management and control of gas fee collection and gas supply management is realized, and a highly reliable closed-loop payment exchange between electronic currency and physical goods is achieved.

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

[0011] Provide a solution as follows: Install a valve that can be closed without electricity on the gas supply path of a mechanical gas meter. When there is no gas consumption, mechanical failure, circuit failure, or being attacked and damaged, the valve can automatically close without electricity to stop the gas supply. Superimpose an information-based charging circuit on this mechanical gas meter, and use such a gas meter to invent an information-based gas meter that meets the legal requirements of the Measurement Law. The mechanical function of the gas meter is mechanical detection and measurement, during gas supply, it mechanically displays instantaneous measurement and mechanically displays the cumulative measurement reading; the function of the superimposed information-based electronic circuit is to power on for communication and charging only when it is necessary to charge and deduct fees, and display the situation of gas fees collected. It completely replaces the analog-to-digital (A / D) conversion that commonly exists currently, which converts mechanical measurement into electronic pulses. When the user queries the gas supply and fee situation, it powers on and displays the fee situation. In terms of electronic technology structure and usage method, it maximally combines mechanical structure and electronic technology to prevent various attacks and damages; and realizes the complete closed-loop payment and exchange between electronic currency and physical goods of information-based technology. Specifically, the information-based gas meter does not power on whether it is supplying gas or not, and the circuit only powers on for work when charging; but it can also be manually powered on when the user queries.Each gas meter is assigned a unique code and a QR code associated with the internal circuit and external markings by the in-table IC circuit. Through various communication networks, Internet of Things information networks, IC card carrier information transfer, etc., information exchange is carried out with the central management computer, maximizing the functions of the central management computer, and simplifying the structure and functions of the large and scattered gas meter circuits; using the powerful database and management control functions of the central management computer to collect, process gas supply charging information and send management instructions, and centrally manage, charge, and control the gas supply; instantaneous power-on for operation, which is more conducive to the stable and reliable operation of the gas supply equipment itself and effectively prevents external electronic attacks; a valve installed in the gas meter that can automatically close when there is no gas fee and no power, making management control more reliable; simpler structure, fewer components, and more reliable operation of the whole machine; realizing a complete closed-loop payment exchange between electronic currency and physical goods: that is, the output gas supply starts the charging process immediately during the gas supply, and the result (successful or failed charging) is output and fed back to the input end. After charging verification, metering detection, numerical transmission, process management, and real-time control, it is decided whether to continue gas supply (start a new round of gas supply drive); or if the charging is unsuccessful, after the gas supply is completed and the power is automatically turned off without supplying power, then start (automatically restart or manually restart) the power-on charging program. If the charging is successful, start a new round of gas supply drive; if the charging is unsuccessful, keep the valve closed and power off; thus achieving complete closed-loop control; the metering result displays unified metering data: the input gas fee is always exactly the same as the output gas supply; it can give an alarm when the gas supply conditions are not met; during each round of charging and gas supply process, when the circuit is instantaneously powered on and meets the gas supply conditions, start the motor in the meter to restore the control mechanism to the starting state of a new round of gas supply; the single mechanical digital display is only the result of executing electronic digital instructions, and once the electronic instructions start to be executed and completed, they have the characteristic of being compulsorily continued and irrevocable by the mechanical part unconditionally; when various gas supply conditions are not met and gas cannot be supplied to users, as a special means to ensure users' gas supply and use, set special buttons to prepay or overdraw gas fees, or provide an emergency gas supply management mechanism by using conditional circuit-opening buttons; successfully implement an information-based gas meter solution that combines centralized charging management control and decentralized management control.

[0012] The main inventive methods or ideas of the technical solution are as follows:

[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 magnetic slide valve (9) repel each other with the same polarity, and the magnet 2 (12) on the control arm (13) attracts each other with the opposite polarity of the magnetic slide valve (9) through the mechanical gas meter housing (51). , providing 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). ) is fixed with the double-layer cloth curtain (54) by a reinforcing strip (71); the outer structure of the valve (5) is composed of a valve frame (10), a control arm (13), a drive arm (83), a micro-reduction motor (19), and a valve bracket (63); wherein the control arm (13) is equipped with a magnet 1 (11) with inverted magnetic poles, a magnet 2 (12), a spring clamp 1 (15), a spring 1 (88), a spring clamp 3 (17), a spring 3 (90), and a power-off action rod (20); the drive arm (83) acts on a switch K2 (26) installed on the mechanical gas meter housing (51) 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 clamp 1 (15) on the control arm (13); the control notch 3 (68) on the dosing shaft (65) corresponds to the position of the spring clamp 3 (17) on the control arm (13); a rotating shaft (21) is arranged in the fan-shaped groove (93) on the control arm (13); the fan-shaped groove (93) limits the driving range of the driving arm (83) on the control arm (13); the information 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 information 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 solution, since the charging management of the present invention is a potential Bing signal when the mechanical switch is closed, not a pulse signal, it will not disappear instantaneously. Only after confirming the receipt of the gas fee, the valve opening instruction is issued, and the valve opening instruction will only power off and disappear after the valve opening task is completed. Moreover, there is no structure for repeated charging during one round of gas supply. Therefore, it is a completely reliable charging management. The quantitative shaft (65) on the counting quantitative wheel (64) led out from the gas meter metering gear set (36), and the control notch 1 (66) and control notch 3 (68) on the quantitative shaft (65) correspond one by one to the spring cutter 1 (15) and spring cutter 3 (17). When the magnet 1 (11) rotates above the magnetic slide valve (9), it is not directly above but above less than the midline of the two magnets. In this way, the repulsive force between the magnetic slide valve (9) and the magnet 1 (11) and the suction force of the magnet 2 (12) will point in the valve closing direction. It should be particularly noted that in the actual use of the information-based gas meter that can work without power in the present invention, since the user has paid or stored enough gas fees, or the gas supply management party has set enough pre-used gas quotas, during each round of gas supply (for example, set to 1 cubic meter), when the gas supply reaches about half a cubic meter, a process of collecting gas fees - driving - restoring to the initial state of a new round of gas supply will occur. In this process, only the spring cutter 1 (15) retracts and "bends down" to pass 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 internal structure slide valve (32) in the valve (5), only one magnet 2 (12) can be used on the control arm in this way; when the magnet 2 (12) rotates above the magnetic slide valve (9), it is not directly above but a little less than the midline of the two magnets. The repulsive force between the magnet 2 (12) and the magnetic slide valve (9) will point in the valve closing direction. Whether using one magnet 2 (12) or the magnets 1 (11) and magnet 2 (12) with two magnets, the self-closing valve spring (48) can be installed in the internal structure of the valve (5).

[0018] Implementing the present invention has the following beneficial effects:

[0019] 1. The present invention realizes the most basic legislative purpose of the metrology law: unified metrology standards and metrology display readings. It completely solves the major structural defects of double metrology, double display, and double control in existing mechanical / electronic metering gas meters. It may end the current situation where electronic information gas meters use both mechanical metering and electronic metering data in the same metering device.

[0020] 2. The present invention realizes the power-off operation of household electrical instruments; breaks through the classic mode that traditional non-electricity electrical measurement technology must rely on uninterrupted power supply to work normally; improves the stability and reliability of gas supply and metering.

[0021] 3. The non-powered valve installed in the present invention can still close the valve when no gas fee is received, the gas meter circuit is out of power or has a power shortage, or there are mechanical failures, electronic failures, or being attacked and damaged, greatly improving the quality and efficiency of management.

[0022] 4. The present invention realizes the closed-loop payment exchange of electronic currency and physical goods. Its input (payment collection) and output (gas supply) have a complete corresponding control relationship, that is, the result at the output end is fed back to the input end to achieve closed-loop automatic control. By adopting the method that the mechanical power is only on during the gas supply process when the fee is collected, the circuit charges, and when the gas fee is not received, the gas is not immediately cut off, but 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 continues until the paid gas fee is used up, and the valve is automatically and stably closed without electricity. Once the electronic instruction starts to execute and is completed, it has the nature of being compulsorily continued to execute by the mechanical part unconditionally and irrevocably, which is convenient for the use of users and also convenient for the maintenance management of gas supply managers, unifying the interests of users and managers.

[0023] 5. The structure of collecting fees once for one round of gas supply in the present invention very conveniently meets the policy management requirements of stepped gas prices.

[0024] In short, the present invention provides a good solution for the informatization management of gas supply, providing powerful means of charging, control, and execution for non-powered informatization management in terms of equipment and technology; solving the problems of double metering, double control, and double display of electronic data / mechanical data in the current stage of gas supply through pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention will be further described below in conjunction with the drawings and embodiments.

[0026] Figure 1 Schematic diagram of the structure of an informatized gas meter that can work without power

[0027] Figure 2 Schematic diagram of the non-powered automatic shut-off state of the valve of an informatized gas meter that can work without power

[0028] Figure 3 Schematic diagram of the restored open state of the valve drive of an informatized gas meter that can work without power

[0029] Figure 4 Mechanical program control diagram of an informatized gas meter that can work without power

[0030] Figure 5 Closed-loop payment exchange control diagram of charging and gas supply of an informatized gas meter that can work without power

[0031] Figure 6 Circuit principle block diagram of an informatized gas meter that can work without power

[0032] Figure 7 Schematic diagram of the control arm structure

[0033] Figure 8 Schematic diagram of the 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 holder; 11. Magnet 1; 12. Magnet 2; 13. Control arm; 15. Spring cutter 1; 17. Spring cutter 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. Reinforcing plate; 32. Slide valve; 33. Magnetic slide valve magnet; 34. Power-on protrusion; 35. Guide rod; 36. Metering gear set; 37. Inner battery; 38. Outer battery; 39. Intermediate gear; 40. IC card holder; 41. Guide rod hole; 42. Control arm gear; 43. Magnetic slide valve seat; 47. Cutter fixing screw; 48. Self-closing valve spring; 49. Metering gear box; 50. Mechanical gas meter; 51. Front housing of mechanical gas meter; 52. Dial wheel; 53. Gas supply passage; 54. Curtain; 55. Rear housing of mechanical gas meter; 56. Battery box; 60. Communication method; 61. QR code; 62. Gas meter code; 63. Valve support; 64. Counting and metering wheel; 65. Metering shaft; 66. Control notch 1; 68. Control notch 3; 69. Sealing box cover; 70. Support pillar; (71) Reinforcing strip; 72. External antenna interface; 74. Sealing rubber strip; 78. Outlet end; 79. Inlet end; 80. Information-based gas meter housing; 81. Valve port; 83. Driving arm; 84. Control arm shaft; 86. Lever connecting rod; 88. Spring 1; 90. Spring 3; 91. Circuit board display screen; 92. Driving arm shaft; 93. Driving sector slot; 94. Sealing ring; 95. Fastening screw Detailed implementation method

[0035] The present invention is implemented as follows: In a mechanical gas meter, the gas flow rate of the gas meter is mechanically detected and measured through the rotating impeller of the gas meter or the volumetric metering box. Through the gear transmission of the metering gear set (36) in the metering gear box (49), the metering value is displayed as the cumulative flow rate and the instantaneous flow rate reading using mechanical digital dials (52) or numbers with direction-indicating pointers on the tops of the gears. In the metering value transmission wheel of the gas volume, an appropriate metering quantitative level is set. For example, for a 15mm / 20mm diameter gas meter commonly used in households, it is set on the 0.1 cubic meter metering wheel as the counting quantitative wheel, and is transmitted to the counting quantitative wheel (64) through the metering intermediate wheel (39). One rotation of this counting quantitative wheel (64) represents a gas flow rate of 1 cubic meter, which serves as the basic charging unit for each round of gas supply. For larger diameter gas meters with larger gas supply volumes, it is correspondingly set on the counting quantitative wheel at a higher metering level. At different heights of the quantitative shaft (65) of the counting quantitative wheel (64), two quantitative control notches for facilitating sequential cyclic control during rotation are provided, namely control notch 1 (66) and control notch 3 (68); corresponding to control notch 1 (66) is spring cutter 1 (15) on the control arm (13), and corresponding to control notch 3 (68) is spring cutter 3 (17); there is spring 1 (88) in spring cutter 1 (15), and spring 3 (90) in spring cutter 3 (17); an additional spring 1 (88) is added behind spring cutter 1 (15), and an additional spring 3 (90) is added behind spring cutter 3 (17) to serve as springs that enhance the reliability guarantee in the reliability redundancy design. Spring cutter 1 (15), spring cutter 3 (17), spring 1 (88), and spring 3 (90) are assembled and installed on the control arm (13).There is a control arm gear (42) on the control arm (13) for the driving arm (83) to engage and drive. When the control arm (13) opens the valve, power is supplied to the circuit board (1). After successful interactive password communication and charging, the power drive circuit of the circuit board is energized, the micro reduction motor (19) is energized, which drives the driving arm (83) to drive the control arm (13). Magnet 1 (11) on the control arm (13) attracts the magnet of the magnetic slide valve (33) of the magnetic slide valve (9) with opposite polarity across the mechanical gas meter housing (51), and magnet 2 (12) repels the magnet of the magnetic slide valve (33) of the magnetic slide valve (9) with the same polarity. The magnetic slide valve (9) moves downward, and through the support rod (27), the lever (8) passing through the ear (30), and the lever connecting rod (86), it pulls the rubber bowl (7) and the slide valve (32) upward. The slide valve (32) moves away from the drain hole (29), the rubber bowl (7) moves upward, the rubber bowl (7) moves away from the valve port (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 cutter 3 (17) and spring cutter 1 (15) on the control arm (13) are successively pressed and "bent" during rotation through the metering shaft (65) of the counting metering wheel (64). The magnet 2 (12) on the control arm (13) is driven to a position above the magnetic slide valve magnet (33) and less than the mid - line of both sides. The driving arm (83) drives the medium - pressure upper power - off action rod (20), the power - off action rod (20) touches the switch K2 (26), the circuit board (1) is powered off, and the secondary valve - opening drive is completed.During gas supply, the magnet 2 (12) on the control arm (13) is repelled by the magnet of the magnetic slide valve (33) with the same polarity, and this repulsive force with the same polarity also becomes a force acting in the valve - closing direction. Additionally, there is a force acting in the valve - closing direction generated by the attraction between magnet 1 (11) and the magnet of the magnetic slide valve (33) with opposite polarities. During the rotation of the control arm (13), the power - off operating rod (20) on the control arm (13) gradually moves away from the driving arm (83), and the switch K2 (26) returns to its normally - closed state. During continuous gas supply, the spring cutter 1 (15) gradually passes through the control notch 1 (66) from the metering shaft (65), and the spring cutter 3 (17) enters the control notch 3 (68). The power - on protrusion (34) presses on the circuit start switch K1 (25), and the switch K1 (25) closes. The circuit board (1) powers on and operates, conducts interactive password communication, and charges. When the charging is successful, the power - driving circuit of the circuit board (1) is energized, the micro - reduction motor (19) rotates, the driving arm (83) rotates, driving the control arm (13) to rotate, repeating the above valve - opening process, and the whole returns to the initial state of the next round of valve - opening. During one round of gas supply, the driving arm (83) rotates one full circle, while the control arm (13) rotates about more than 10 degrees, and the spring cutter 3 (17) and the spring cutter 1 (15) only move a few millimeters. When the charging is unsuccessful, the user is informed of paying the gas fee through sound, light, text messages, WeChat, and various communication means. At the same time, the gas supply continues until the gas volume for which the gas fee has been paid is used up. To close the valve, no power - on is required, nor is the circuit board (1) and the power - driving circuit needed to work. Under the action of the attractive force between magnet 1 (11) on the control arm (13) and the magnet of the magnetic slide valve (33) with opposite polarities and the repulsive force between magnet 2 (12) and the magnet of the magnetic slide valve (33) with the same polarity, the spring cutter 3 (17) on the control arm (13) passes through the control notch 3 (68). The magnetic slide valve magnet (33) is attracted to the magnetic slide valve magnet (33) with opposite polarities, the magnetic slide valve (9) moves upward, and through the lever (8), the support rod (27), and the lever connecting rod, the slide valve (32) moves downward to block the drain hole (29). The air flow enters the rubber bowl (7) from the pilot hole (28), the rubber bowl (7) moves downward, pressing on the valve port (81), the guide rod (35) moves downward in the guide rod hole (41), and the valve (5) closes. The power - on protrusion (34) on the control arm (13) presses on the switch K1 (25), and the circuit board (1) powers on and operates or stands by. In normal gas supply operations with normal charging, no arrears in gas fees, bank deductions, or unified settlement of gas fees, the situation of closing the valve cannot occur. The circuit board (1) is also not energized and operates, except during 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 power - off during operation.

[0036] This will be described below with reference to the example drawings. In the example drawings, some secondary parts or parts that do not need to be described in the original structure of the gas meter are appropriately omitted; in different views, in order to clearly understand the functions of each component, the positions are also adjusted; at the same time, for those that have been described in detail previously, the following description is appropriately omitted.

[0037] Figure 1 It is a schematic diagram of the mechanical control structure of the Internet of Things gas meter, combined with Figure 2 a schematic diagram of the non-powered automatic shut-off state of the information-based gas meter valve that can work without power, and Figure 3 a schematic diagram of the driving restoration and opening state of the information-based gas meter valve that can work without power for explanation; Figure 1 In the [specific state], the driving arm (83) drives counterclockwise, driving the control arm (13) to rotate clockwise. After the driving arm (83) meshes with the control arm gear (42), it continues to drive the control arm (13) to rotate clockwise, and the valve opens, as shown in Figure 3 ; Figure 2 It is that the valve is shut off when the gas fee is not received. The whole process has been described in detail before. Figure 4 It is a mechanical program control diagram of the information-based gas meter that can work without power. This control diagram briefly explains the working process of the present invention, which has been described in detail before. Figure 5 It is a closed-loop payment and exchange control diagram for charging and gas supply of the present invention, that is, a control diagram for the closed-loop payment and exchange of electronic currency and physical goods. This diagram clearly explains the payment and exchange of electronic currency and physical goods in gas supply management and the process control of gas supply management in the present invention; its output end is fed back to the input end to achieve unconditional closed-loop control. The charging and gas supply are a complete input / output closed-loop control relationship; considering the particularity of gas supply and life, it can be set to prepay a certain amount of gas volume 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 the gas user a buffer. Figure 6 It is a circuit principle block diagram of the information-based gas meter that can work without power. In the present invention, among the functions superimposed on the gas meter, the function of the circuit is only for charging and restoring the gas meter to the initial state of the next round of gas supply after charging; various information-based circuits superimposed on the gas meter, such as smart IC cards (contact or non-contact), remote intelligent, wireless remote transmission, Internet of Things circuits, etc., only perform the most basic charging function for the present invention and start 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 It is a schematic diagram of the rubber bowl structure, which has been described in detail before. The structure of the present invention is simple and the control is reliable, so no more redundant description will be made.

Claims

1. An information-based gas meter that can work without electricity, comprising a mechanical gas meter, a valve installed on the gas supply path of the gas meter, and an information-based centralized / decentralized charging management control circuit superimposed on the gas meter; The mechanical 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 information circuit board (1) for controlling the opening of the valve (5) and a mechanical control mechanism for the valve (5) to automatically close when there is no electricity; It is characterized in that A valve (5) is installed on the gas supply passage (53) of the mechanical 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 magnets 1 (11) on the control arm (13) that have not rotated to the respective midlines above the magnetic slide valve (9) during the rotation, and the magnetic slide valve (9) are repelled by the same polarity, and the magnets 2 (12) on the control arm (13) and the magnetic slide valve (9) are attracted by the opposite polarity. 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). 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 valve frame (10), a control arm (13), a drive arm (83), a micro-reduction motor (19), and a valve bracket (63); wherein the control arm (13) is equipped with a magnet 1 (11) with inverted magnetic poles, a magnet 2 (12), a spring clamp 1 (15), a spring 1 (88), a spring clamp 3 (17), a spring 3 (90), and a power-off action rod (20); the drive arm (83) acts on a switch K2 (26) installed on the valve frame (10) through the power-off action rod (20); the metering gear set (36) in the metering gear box (49) is connected to the metering gear box (49) through a 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 clamp 1 (15) on the control arm (13); the control notch 3 (68) on the dosing shaft (65) corresponds to the position of the spring clamp 3 (17) on the control arm (13); a rotating shaft (21) is arranged in the fan-shaped groove (93) on the control arm (13); the fan-shaped groove (93) limits the driving range of the driving arm (83) on the control arm (13); the information 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 information circuit board (1) has a power drive circuit capable of executing a command to open the valve (5) and driving a micro-reduction motor (19); a different and unique gas meter code (62) or a 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 outside of the gas meter has a communication method (60) for contacting the gas supply management party; 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), 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.

2. The information-based gas meter capable of working without electricity according to claim 1 is characterized in that: 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) to rotate, and 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 mechanical gas meter housing (51) during the 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.

3. The information-based gas meter capable of working without electricity according to claim 1 is characterized in that: The information circuit board (1) is installed with a functional circuit block of the Internet of Things protocol and has a wireless remote data transmission function; the circuit board (1) also stores the IC card circuit data information of each gas meter user and has corresponding Internet of Things protocol communication functions and charging, management, control, and power drive functions for opening valves in the meter.

4. The information-based gas meter capable of working without electricity according to claim 1 is characterized in that: The information circuit board (1) is installed with a functional circuit block that can cooperate with the intelligent IC card to work, and has corresponding interactive password communication functions and functions of charging, management, control, and power drive to open the valve (5) in the meter.

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