CN203733222U - Intelligent safety cut-off type IC card gas meter - Google Patents
Intelligent safety cut-off type IC card gas meter Download PDFInfo
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- CN203733222U CN203733222U CN201420044882.7U CN201420044882U CN203733222U CN 203733222 U CN203733222 U CN 203733222U CN 201420044882 U CN201420044882 U CN 201420044882U CN 203733222 U CN203733222 U CN 203733222U
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- 239000002737 fuel gas Substances 0.000 claims description 8
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/52—Mechanical actuating means with crank, eccentric, or cam
- F16K31/528—Mechanical actuating means with crank, eccentric, or cam with pin and slot
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
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- Mechanical Engineering (AREA)
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Abstract
The utility model discloses an intelligent safety cut-off type IC card gas meter, and belongs to a gas meter. The gas meter comprises a base meter body. A gas inlet and a gas outlet are formed in the base meter body. A cut-off valve is installed on the gas inlet. The gas meter further comprises a signal acquisition and processing circuit and a terminal microcomputer controller of the intelligent safety cut-off type IC card gas meter. The signal acquisition and processing circuit is connected into the terminal microcomputer controller of the intelligent safety cut-off type IC card gas meter. The cut-off valve is connected into the terminal microcomputer controller of the intelligent safety cut-off type IC card gas meter through a cut-off valve control circuit. The amount of gas flowing through the base meter body is acquired in real time through the signal acquisition and processing circuit and transmitted to the terminal microcomputer controller of the intelligent safety cut-off type IC card gas meter in time. When it is detected that a small amount of gas output through the base meter body leaks, or the flow of gas output through the base meter body is abnormally large, or gas output through the base meter body is in other abnormal states, the cut-off valve on the base meter body can be turned off in time, an alarm can be given, and therefore burning or explosion caused by leakage of too much gas is avoided, and life safety and property safety of people are protected.
Description
Technical field
The utility model relates to a kind of gas meter, flow meter, and in particular, the utility model relates generally to a kind of safety cut-off type IC-card intelligent gas meter.
Background technology
At present, each gas company is mostly all used IC-card diaphragm gas meter and IC-card intelligent gas meter and sells gas management system and carry out service management, IC-card diaphragm gas meter is usingd IC-card as media, realize the basic function of pre-payment and related management, IC-card intelligent gas meter has been made functional promotion on the basis of IC-card diaphragm gas meter, metering accuracy and valve control reliability have been guaranteed, yet the IC-card intelligent gas meter using is used safe abnormality but ineffective to the relevant combustion gas occurring in combustion gas use procedure, technological means is carried out security management reliably, while in use there is abnormality in combustion gas, may produce leakage, catch fire, the situations such as blast, be unfavorable for the safety management of gas company, bring great hidden danger also to people's life and property safety simultaneously.When combustion gas generation low discharge leaks, existing IC-card intelligent gas meter does not have relevant detection means to judge this gas leak phenomenon, there is no effectively to preset mechanism and carry out the safety shutdown of valve and take image and audible alarm, the leakage of combustion gas cannot be effectively addressed.IC-card intelligent gas meter itself is provided with peak flow values, but, existing IC-card intelligent gas meter does not have the safety cut-off management of abnormal large flow pipe road and relevant alarm mechanism, when occurring rupturing or coming off to the gas pipe line of kitchen range, the abnormal large flow of combustion gas leaks and cannot be turn-offed in time, and combustion gas spreads in user's kitchen space, produces the potpourri of combustion gas and air, in the time of can arriving the concentration of gas explosion very soon, exist and to blast and the substantial risk of fire.
In daily life, often exist in unmanned situation, kitchen range continue mess kit to heat, when arriving certain hour segment length, the mess kit ignition on kitchen range, existing IC-card intelligent gas meter does not possess safety cut-off function, can not limit the length of the time period of normal use combustion gas, in this case, possible initiation fire, produces great security incident.Therefore be necessary for the problems referred to above, existing IC-card intelligent gas meter is done to further improvement, when realizing normal metering, pre-payment and related management, realize effective collection of the information of abnormality, and can to output combustion gas, cut off and realize warning function timely, the generation of stopping the perils such as fire and blast, is beneficial to related management and the security control of gas company, is beneficial to the use combustion gas that user is safer.
Utility model content
One of the purpose of this utility model is for above-mentioned deficiency, a kind of safety cut-off type IC-card intelligent gas meter is provided, with expectation, solving in prior art combustion gas uses while there is abnormality, gas meter, flow meter is acquisition abnormity status information accurately, can not implement to fuel gas supply the technical matterss such as safety cut-off.
For solving above-mentioned technical matters, the utility model by the following technical solutions:
A kind of safety cut-off type IC-card intelligent gas meter provided by the utility model, comprise base table body and IC-card information exchange module, described base table body is provided with fuel gas inlet and gas outlet, in described fuel gas inlet, stop valve is installed, it is characterized in that: described gas meter, flow meter also comprises signal acquisition processing circuit and safety cut-off type IC-card intelligent gas meter terminal microcomputer controller, described signal acquisition processing circuit and IC-card information exchange module be access security cut-off type IC-card intelligent gas meter terminal microcomputer controller respectively, the mechanical counting device of the collection terminal access base table body of described signal acquisition processing circuit, described stop valve is by stop valve control circuit access security cut-off type IC-card intelligent gas meter terminal microcomputer controller,
For gathered the flow information of the inner combustion gas process of base table body by described signal acquisition processing circuit, and be converted into corresponding electronic measurement pulse signal, input safety cut-off type IC-card intelligent gas meter terminal microcomputer controller;
The inside of described safety cut-off type IC-card intelligent gas meter terminal microcomputer controller is at least preset with long abnormality threshold range of the low discharge leakage corresponding with base table body, abnormal large flow and service time, the flow information that is used for comprising with the electronic measurement pulse signal that comes from signal acquisition processing circuit contrasts, and according to comparing result, judges whether to close stop valve by stop valve control circuit.
As preferably, further technical scheme is: the abnormality that described low discharge leaks is that the flow through gas flow of base table body is greater than the initial-flow of mechanical counting device, and is less than gas appliance igniting flow half, and the duration has surpassed preset value.
The abnormality of described abnormal large flow is within the default unit interval, and the gas flow of the base table body of flowing through has surpassed the preset multiple of maximum flow preset value.
Described service time, long abnormality was to flow through the gas flow of base table body in the scope of the normal use traffic of combustion gas, but the duration has surpassed preset value; The normal use traffic of described combustion gas be flow through the gas flow of base table body be greater than base table body minimum flow, be more than or equal to gas appliance igniting flow, be less than abnormal large flow, and the duration does not surpass preset value; The minimum flow of described base table body is the base table body and can make the minimum stream value of mechanical counting device accurate counting of flowing through.
In described gas meter, flow meter, also comprise sensor detection module, described sensor detection module is by communication interface access security cut-off type IC-card intelligent gas meter terminal microcomputer controller, for detect the current state of gas meter, flow meter external environment condition by external sensor, and corresponding environmental information is transferred to sensor detection module, by safety cut-off type IC-card intelligent gas meter terminal microcomputer controller, from sensor detection module, gather environmental information, according to current environmental information, judge whether to close stop valve by stop valve control circuit; Described external sensor comprise in the middle of Earthquake sensor, gaseous-pressure sensor, gas concentration detection alarm device, compound alarm any one or multiple.
Further technical scheme is: in described gas meter, flow meter, also comprise under-voltage protecting circuit, power-off protecting circuit, antimagnetic interfered circuit and recovering state circuit; described under-voltage protecting circuit, power-off protecting circuit, antimagnetic interfered circuit and recovering state circuit be access security cut-off type IC-card intelligent gas meter terminal microcomputer controller respectively; when there is under-voltage, power-off and magnetic interference in gas meter, flow meter use procedure, by safety cut-off type IC-card intelligent gas meter terminal microcomputer controller, control corresponding circuit and complete the operation of closing valve, warning and recovering state.
Further technical scheme is: in described gas meter, flow meter, also comprise liquid crystal display and hummer, described liquid crystal display and hummer be access security cut-off type IC-card intelligent gas meter terminal microcomputer controller also, and at least for auxiliary security cut-off type IC-card intelligent gas meter terminal microcomputer controller, completes the operation of warning.
Further technical scheme is: described safety cut-off type IC-card intelligent gas meter terminal microcomputer controller is also connected with counting tongue tube by buckleing number circuit, described counting tongue tube is at least two, and be straight location and installation in supporting locating slot, for controlling and buckle number signal by safety cut-off type IC-card intelligent gas meter terminal microcomputer controller, by counting tongue tube, to coming from the combustion gas amount of supplementing with money of IC-card information exchange module, deduct; The mode that described counting tongue tube combines with electronic counting by mechanical count is counted, and wherein electronic counting is for controlling liquid crystal display circuit to the LCDs data signal connecting by safety cut-off type IC-card intelligent gas meter terminal microcomputer controller;
In described safety cut-off type IC-card intelligent gas meter terminal microcomputer controller, be provided with maximal value and the minimum value of buckleing the number time interval for twice.
Further technical scheme is: described stop valve comprises shell body, the inside of described shell body is also provided with inner housing, in described inner housing, motor is installed, gear reduction box, gear reduction box top cover and valve rod, wherein one end of described valve rod is provided with sealing cap, on the other end, be provided with connecting hole, in described gear reduction box, input gear is installed, output gear and driving gear, the output shaft of described motor is connected with input gear power, input gear is connected with output gear power by Multi-stage transmission gear, after the power of input gear being increased by a plurality of transmission gears, transfer to output gear, described output gear is also connected with driving gear power by transmission shaft, ratchet doubly-linked gear and imperfect gear are installed on described gear reduction box top cover, described ratchet doubly-linked gear respectively with driving gear, imperfect gear is meshed, described imperfect gear is provided with biasing post, described biasing post inserts the connecting hole of valve rod end, on described gear reduction box top cover, lock dog is also installed, described lock dog and ratchet doubly-linked gear fasten, for limiting ratchet doubly-linked gear backwards rotation, resetting means is also all installed on described lock dog and imperfect gear.
Also further technical scheme is: described motor sealing is arranged on the inside of inner housing, and gear reduction box and gear reduction box top cover, by O-ring seal static seal, installs; Described transmission shaft and driving gear are tightly connected; Described motor is installed by O-ring seal static seal in the inside of inner housing; The output shaft of described motor stretches into gear reduction box, and is provided with O-ring seal between the output shaft of motor and gear reduction box, and the action sealing of going forward side by side is installed; Described transmission shaft is arranged on gear reduction box top cover by the sealing of O-ring seal reinforcement, and is connected with driving gear power; Described ratchet doubly-linked gear forms by fixedly mount ratchet-gear wheel above gear, and described lock dog and ratchet-gear wheel fasten, and gear is meshed with imperfect gear and driving gear respectively; Ratchet on described ratchet-gear wheel counterclockwise tilts, and for after fastening with lock dog, only can rotate towards clockwise direction; The resetting means of installing on described lock dog and imperfect gear is torque spring, for making lock dog keep the state fastening with ratchet doubly-linked gear, imperfect gear is automatically reset under the state of non-engagement.
Compared with prior art, one of the beneficial effects of the utility model are: by the flow through gas quantity of base table body of signal acquisition processing circuit Real-time Collection, and transmit it in time safety cut-off type IC-card intelligent gas meter meter terminal microcomputer controller, occur that low discharge leaks base table body being detected, during the abnormality such as abnormal large flow and service time are long, can close in time the stop valve on base table body, and can pass through liquid crystal display, hummer is reported to the police, avoid gas leakage excessive, cause burning or explosion phenomenon, protection people safety of life and property, simultaneously, safety cut-off type IC-card intelligent gas meter meter terminal microcomputer controller coordinates the various kinds of sensors being accessed by outside, makes the real-time condition of gas meter, flow meter environment for use also can become one of trigger condition of safety cut-off type IC-card intelligent gas meter meter terminal microcomputer controller pass valve operation, and a kind of safety cut-off type IC-card intelligent gas meter provided by the utility model is simple in structure, is suitable for suitability for industrialized production, be easy to promote.
Accompanying drawing explanation
Fig. 1 is for the combustion gas state acquisition processing block diagram of an embodiment of the utility model is described;
Fig. 2 is for the structural representation block diagram of another embodiment of the utility model is described;
Fig. 3 is for the one-piece construction schematic diagram of another embodiment stop valve of the utility model is described;
Fig. 4 is for illustrating that another embodiment middle gear reducer casing first of the utility model splits face structural representation;
Fig. 5 is for illustrating that another embodiment middle gear reducer casing second of the utility model splits face structural representation;
Fig. 6 is for for illustrating the utility model structural representation of an embodiment driving gear and the motive seal of transmission shaft reducer casing reinforcement again;
Fig. 7 is for the safety cut-off type IC-card intelligent gas list management system composition frame chart of another embodiment of the utility model is described.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further elaborated.
Shown in figure 1, an embodiment of the present utility model is a kind of safety cut-off type IC-card intelligent gas meter, comprise base table body and IC-card information exchange module, described base table body is provided with fuel gas inlet and gas outlet, in described fuel gas inlet, stop valve is installed, described gas meter, flow meter also comprises signal acquisition processing circuit and safety cut-off type IC-card intelligent gas meter terminal microcomputer controller, described signal acquisition processing circuit and IC-card information exchange module be access security cut-off type IC-card intelligent gas meter terminal microcomputer controller respectively, the mechanical counting device of the collection terminal access base table body of described signal acquisition processing circuit, described stop valve is by stop valve control circuit access security cut-off type IC-card intelligent gas meter terminal microcomputer controller,
The effect of above-mentioned gas meter, flow meter structure is: by signal acquisition processing circuit, gathered the flow information of the inner combustion gas process of base table body, and be converted into corresponding electronic measurement pulse signal input safety cut-off type IC-card intelligent gas meter terminal microcomputer controller;
And in the inside of above-mentioned safety cut-off type IC-card intelligent gas meter terminal microcomputer controller, be at least preset with long abnormality threshold range of the low discharge leakage corresponding with base table body, abnormal large flow and service time, also can be referred to as the combustion gas monitoring abnormal state mechanism shown in Fig. 1; Its effect is and comes from the flow information comprising in the electronic measurement pulse signal of signal acquisition processing circuit and contrast, judge whether to occur that combustion gas used state extremely, while further judging, belong to any abnormality, and determine whether by stop valve control circuit, close stop valve according to comparing result.
In the present embodiment; utilize the flow through gas quantity of base table body of signal acquisition processing circuit Real-time Collection; and transmit it in time safety cut-off type IC-card intelligent gas meter terminal microcomputer controller; detecting that base table body occurs that low discharge leaks, when abnormal large flow and the abnormality such as service time is long; can close in time the stop valve on base table body; also can select to report to the police by liquid crystal display, hummer; avoid gas leakage excessive; cause burning or explosion phenomenon, the safety of protection people's life and property.
From above-described embodiment, gas meter, flow meter in the utility model is to take displacement machine measurement technology as basis (being above-mentioned alleged base table body), by signal acquisition process technology, safety cut-off valve technology and IC-card Data Interchange Technology, microcomputer controller, by tongue tube button, count the combination of billing technology, realize the gas meter, flow meter of the safety cut-off functions such as valve control, exceptional state alarm.
As what mention in above-described embodiment, the signal acquisition processing circuit Real-time Collection gas quantity in base table body of flowing through, its object is for judging whether the combustion gas output of base table body exists abnormal situation, for these abnormal conditions, the abnormal conditions that inventor uses for existing IC-card intelligent gas meter gather, use habit in conjunction with user is analyzed, three kinds of abnormal conditions that base table body the most often occurs have roughly been summed up, be that above-mentioned combustion gas low discharge leaks, the abnormal large flow of combustion gas and combustion gas are long service time, and in the utility model, for aforementioned three kinds of situations, be defined as follows:
The abnormality that low discharge leaks refers to that the gas flow of the base table body of flowing through is greater than the initial-flow of base table body, and is less than gas appliance igniting flow half, and the duration has surpassed preset value.Wherein initial-flow refers to the flux lower limit value that the gas flow of the base table body of flowing through can make base table body count; The igniting flow of gas appliance refers to the flux lower limit value that can maintain gas kitchen ranges (referring generally to the gas kitchen ranges for family expenses) burning.
The abnormality of abnormal large flow refers to that in the fixed unit interval in sight, the gas flow of the base table body of flowing through has surpassed the preset multiple of maximum flow preset value, and the preset multiple here refers generally to the formulation multiple of the table end maximum flow that gas meter, flow meter manufacturer sets; Wherein maximum flow refers to that gas meter, flow meter can realize the regulation flow upper limit of accurate counting, and Gai Zhiyou gas meter, flow meter manufacturer sets according to Its Relevant Technology Standards.
The gas flow that service time, long abnormality referred to the base table body of flowing through in the threshold range of the normal use traffic of combustion gas, but the duration surpassed preset value; The normal use traffic of described combustion gas be flow through the gas flow of base table body be greater than base table body minimum flow, be more than or equal to gas appliance igniting flow, be less than abnormal large flow and the duration does not surpass preset value; The minimum flow of described base table body is the base table body and can make the minimum stream value of base table body accurate counting of flowing through.
Shown in figure 2, an embodiment who is more preferably for technical solution problem at the utility model, consideration for security aspect, even if inventor also finds the combustion gas of flowing through in base table body and does not occur above-mentioned abnormal conditions, but the external environment condition of installing as gas meter, flow meter is not suitable for using the words of combustion gas, still be prone to security incident, therefore for making gas meter, flow meter in the situation that guaranteeing that base table body is used under non-abnormality, the condition that partial parameters in external environment condition also can be turn-offed to stop valve as triggering safety cut-off type IC-card intelligent gas meter terminal microcomputer controller, be specially and in gas meter, flow meter, set up sensor detection module, and sensor detection module is passed through to communication interface access security cut-off type IC-card intelligent gas meter terminal microcomputer controller, for detect the current state of gas meter, flow meter external environment condition by external sensor, and corresponding environmental information is transferred to sensor detection module, by safety cut-off type IC-card intelligent gas meter terminal microcomputer controller, from sensor detection module, gather environmental information, according to current environmental information, judge whether to close stop valve by stop valve control circuit, and aforesaid external sensor can be selected according to the field of employment of gas meter, flow meter and area, determine and use one or more, for example Earthquake sensor, gaseous-pressure sensor, gas concentration detection alarm device, again or compound alarm etc.
Above-mentioned sensor detection module refers to the pick-up unit that connects external sensor, for the signal that external sensor is passed over, convert switching value output signal to, and switching value output signal can be delivered to safety cut-off type IC-card intelligent gas meter terminal microcomputer controller.
Further, inventor is also with reference to prior art, the other problems that may occur in use for the gas meter, flow meter with terminal microcomputer controller adopts following technological means to be solved: in gas meter, flow meter, set up under-voltage protecting circuit, power-off protecting circuit, antimagnetic interfered circuit and recovering state circuit, described under-voltage protecting circuit, power-off protecting circuit, antimagnetic interfered circuit and recovering state circuit be access security cut-off type IC-card intelligent gas meter terminal microcomputer controller respectively, for occurring under-voltage in gas meter, flow meter use procedure, when power-off and magnetic interference, by safety cut-off type IC-card intelligent gas meter terminal microcomputer controller, control corresponding circuit and complete pass valve, the operation of warning and recovering state.
In addition, in above-mentioned abnormal conditions, trigger safety cut-off type IC-card intelligent gas meter terminal microcomputer controller, its execution is closed after the operation of stop valve, for timely reminding user, know, also can on gas meter, flow meter, design the function of reporting to the police; Therefore in gas meter, flow meter, set up again in the present embodiment liquid crystal display and hummer, and by liquid crystal display and hummer also access security cut-off type IC-card intelligent gas meter terminal microcomputer controller, and at least for auxiliary security cut-off type IC-card intelligent gas meter terminal microcomputer controller, complete the operation of warning, when there is above-mentioned any one abnormality in gas meter, flow meter, when closing valve, also by hummer and liquid crystal display, carry out sound and light alarm.
Inventor also counts the implementation of charging with reference to existing IC-card intelligent gas meter pre-payment button simultaneously, above-mentioned safety cut-off type IC-card intelligent gas meter terminal microcomputer controller is connected with counting tongue tube by buckleing number circuit, and counting tongue tube is set at least two, and be straight location and installation in supporting locating slot, best mounting circuit boards in locating slot again, for controlling and buckle number signal by safety cut-off type IC-card intelligent gas meter terminal microcomputer controller, by counting tongue tube, to coming from the combustion gas amount of supplementing with money of IC-card information exchange module, deduct; The mode that described counting tongue tube combines with electronic counting by mechanical count is counted, and wherein electronic counting is for controlling liquid crystal display circuit to the LCDs data signal connecting by safety cut-off type IC-card intelligent gas meter terminal microcomputer controller; In safety cut-off type IC-card intelligent gas meter terminal microcomputer controller, maximal value and the minimum value of buckleing the number time interval for twice is set again.
And for ease of using, the situation of the long standby metering distortion that minimizing gas meter, flow meter may exist in actual use, in above-mentioned safety cut-off type IC-card intelligent gas meter terminal microcomputer controller, be also provided with maximum stand-by time value, by the initialization of IC-card intelligent gas meter terminal microcomputer controller, overcome the problem of aforementioned distortion; In IC-card intelligent gas meter terminal microcomputer controller, be also provided with clock can controller simultaneously, and IC-card intelligent gas meter terminal microcomputer controller also can controller timing be controlled electric valve controling circuit by means of clock and transmit control signal to electromechanical valve.
Above-mentioned and IC-card information exchange module carry out information interaction is can be central any one of memory card, logic encryption card and CPU card.
Further, inventor also finds through overtesting, and except the above-mentioned abnormal case of enumerating, the existing potential safety hazard of stop valve itself also by the security that has a strong impact on gas meter, flow meter and use, for example, for stop valve provides the source current of power excessive, easily produces electric spark; As combustion gas is leaked, when safety cut-off type IC-card intelligent gas meter terminal microcomputer controller detects this abnormality and closes valve, control stop valve cuts out, and in the process of closing at stop valve, once produce electric spark because electric current is excessive, easily lights combustion gas and even blasts; On the other hand, the sealing of stop valve after closing height also by determine gas meter, flow meter whether close after valve can be in overall safety state;
Shown in figure 3, Fig. 4 and Fig. 5, based on above-mentioned actual conditions, inventor has also done further improvement to the stop valve structure in above-described embodiment, and this stop valve for carrying out safety switch valve when receiving the instruction of IC-card intelligent gas meter terminal microcomputer controller.
And another embodiment that the concrete structure of stop valve is the utility model to be more preferably for technical solution problem, comprising shell body, and inner housing 4 is installed within the outer shell, motor 1 as the power part of stop valve is installed in inner housing 4, and gear reduction box 2, gear reduction box top cover 7 and valve rod 3, wherein wherein one end of valve rod 3 is provided with sealing cap 31, is provided with connecting hole 32 on the other end.In aforesaid gear reduction box 2, need to install input gear 21, output gear 22 and driving gear 23, the output shaft of motor 1 is connected with input gear 21 power, input gear 21 is connected with output gear 22 power by Multi-stage transmission gear 24, after the power of input gear 21 being increased by Multi-stage transmission gear 24, transfer to output gear 22, output gear 22 is also connected with driving gear 23 power by transmission shaft 25;
On this basis, on aforesaid gear reduction box top cover 7, need to install ratchet doubly-linked gear 26 and imperfect gear 27, described ratchet doubly-linked gear 26 is meshed with driving gear 23, imperfect gear 27 respectively, described imperfect gear 27 is provided with biasing post 271, described biasing post 271 inserts the connecting hole 32 of valve rod 3 ends, on described gear reduction box top cover 7, lock dog 28 is also installed, described lock dog 28 fastens with ratchet doubly-linked gear 26, for limiting ratchet doubly-linked gear 26 backwards rotation; On described lock dog 28 and imperfect gear 27, resetting means 29 is also all installed.
In the present embodiment, motor 1 drives input gear 21 to rotate, input gear 21 amplifies the moment of torsion of motor 1 output shaft by the Multi-stage transmission gear 24 with its engagement, and then be passed to output gear 22, output gear is passed to driving gear 23 by moment of torsion by transmission shaft 25, because driving ratchet doubly-linked gear 26, driving gear 23 rotates, and then drive imperfect gear 27 to rotate by ratchet doubly-linked gear 26, when imperfect gear 27 rotates, 271 of biasing posts can be with ovable valve stem 3 to move forward and backward, the power that imposes on valve rod 3 for the 271 hoops motions of assurance biasing post makes it that straight-line displacement occur, the connecting hole 32 of valve rod 3 ends can be set to bar hole, biasing post 271 can be moved in bar hole, the lock dog 28 fastening with ratchet doubly-linked gear 26 can be when imperfect gear 27 rotates to anodontia part, prevent that it from rotating backward under the effect of resetting means, and then form and engage with imperfect gear 27, make valve rod 3 keep current state.
By the gear mode of transmission step by step, the moment of torsion of motor 1 output shaft is amplified, thus the required power that makes while reducing switch valve, and then reduce the required electric current of switch valve.In actual applications, the outputting power of motor 1 can be can be controlled in a less scope, source current and the voltage of driving motor 1 operation also can be reduced, realize little failure of current, prevent the excessive generation electric spark of electric current, bring above-mentioned potential safety hazard, further improved the safety and reliability of gas meter, flow meter.
In another embodiment of the present utility model, for preventing that rock gas from causing corrosion to the circuit of stop valve inside, preferably above-mentioned motor 1 sealing is arranged on to the inside of inner housing 4, and sets up top cover on gear reduction box 2, and top cover and gear reduction box 2 sealing installations; Described transmission shaft 25 is tightly connected with driving gear 23.Further, shown in figure 6, inventor thinks and prevents that combustion gas from causing the technical scheme that is more preferably of corrosion on the basis of aforementioned means to motor interior, installs in the inside of inner housing 4 motor 1 by O-ring seal 5 static seals; The output shaft of motor 1 is stretched into gear reduction box 2, and be provided with O-ring seal between the output shaft of motor 1 and gear reduction box 2; Described transmission shaft 25 is arranged on the top cover of gear reduction box 2 by O-ring seal 5 reinforcement sealings, and is connected with driving gear 23 power.
Just as described above, ratchet doubly-linked gear 26 has utilized the principle of ratchet-gear wheel structure just, its lock dog 28 is matched, and the ratchet on ratchet-gear wheel is set to counterclockwise tilt, realize between itself and lock dog " turn clockwise by; be rotated counterclockwise engaging " object, yet be subject to the constraint of ratchet-gear wheel with the gear that ratchet-gear wheel is fixed as one, when it is meshed with imperfect gear 27 and driving gear 23 respectively, form forward transmission with imperfect gear 27, oppositely engaging, and then prevent that imperfect gear 27 from rotating backward.
Shown in figure 5, an embodiment who is more preferably for technical solution problem in utility model, for above-mentioned lock dog 28 and imperfect gear 27 can be resetted smoothly after motor 1 is out of service, can adopt torque spring as the resetting means 29 of installing on lock dog 28 and imperfect gear 27, for making lock dog 28 keep the state fastening with ratchet doubly-linked gear 26, imperfect gear 27 is automatically reset under the state of non-engagement.
Shown in figure 4 and Fig. 5, the two-way valve process of opening without stall gear drive gas meter, flow meter Special cut-off valve in the utility model above-described embodiment is: when the output shaft of motor 1 rotates counterclockwise and transfers a torque to driving gear 23 by input gear 21, transmission gear 24 and output gear 22, driving gear 23 is rotated counterclockwise by the imperfect gear 27 of the gear driven on ratchet doubly-linked gear 26, biasing post band ovable valve stem 3 on imperfect gear 27 is retracted, now the sealing cap 31 of valve rod 3 initiating terminals leaves the air intake opening 6 on stop valve, and stop valve is opened; When being rotated counterclockwise anodontia position, realizes by imperfect gear 27 imperfect gear 27 from 26 unloadings of ratchet doubly-linked gear, although now driving gear 23 is also driving ratchet doubly-linked gear 26 to rotate toward the clockwise direction, but the tooth on the gear of ratchet doubly-linked gear 26 is not meshed with the tooth on imperfect gear 27, when the output shaft of motor 1 continues to rotate counterclockwise, imperfect gear 27 remains at this state, be the sealing cap 31 of valve rod 3 initiating terminals all the time away from air intake opening 6, stop valve valve is opening.When motor 1 stops operating, the torque spring of installing on imperfect gear 27 drives it to clockwise rotate with the gear of ratchet doubly-linked gear 26 and is meshed, and fixing anticlockwise ratchet-gear wheel is locked under the effect of lock dog 28 on ratchet doubly-linked gear 26, make the reset torque spring of installing on imperfect gear 27 can not continue to make imperfect gear 27 to rotate, be that lock dog 28 pins ratchet-gear wheel and then pins ratchet doubly-linked gear 26, ratchet doubly-linked gear 26 pins imperfect gear 27, valve rod 3 can not be stretched out, and then make valve be held open state.
Equally, shown in Fig. 4 and Fig. 5, the two-way pass valve process without stall gear drive gas meter, flow meter Special cut-off valve of the utility model above-described embodiment is: when motor 1 clockwise rotates and passes through input gear 21, transmission gear 24 and output gear 22 transfer a torque to driving gear 23, driving gear 23 also turns clockwise, now because ratchet doubly-linked gear 26 is pinned by lock dog 28, under driving gear 23 turns clockwise the effect of power, the liner plate that ratchet doubly-linked gear 26 is installed by below is realized release with the engagement of driving gear 23 axle rotations disengaging and imperfect gear 27, imperfect gear 27 clockwise rotates under the effect of torsion spring power, the biasing post of its top rotates and promotes valve rod 3 valve-offs with imperfect gear 27, and lock dog 28 also rotates around driving gear 23 axles with ratchet-gear wheel doubly-linked gear by liner plate in aforementioned process, when lock dog 28 is encountered the medial surface of gear reduction box 2, throw off the ratchet-gear wheel of ratchet doubly-linked gear 26 and realize unloading, make to close valve without stall, after the output shaft of motor 1 stops operating, under the effect of torsion spring power, make lock dog 28 reset, before the startup next time of motor 1 rotates counterclockwise, electromechanical valve remains closed condition.
The stop valve of said structure guarantees that in leakage rate security comprises internal leakage and effective control of the leakage quantity that leaks, and two static seals and a motive seal that internal leakage is controlled by above-mentioned stop valve realize minimum leakage, guarantee that the Leakage Gas cutting off in valve body meets security requirement to the leakage rate in motor cavity.
The utility model is intended to realize the warning function of IC-card intelligent gas meter abnormality, and timely output combustion gas is carried out to safety cut-off, stop the generation of the perils such as fire and blast, possess the functions such as under-voltage prompting, the recovery of power-off data, anti-magnetic interference simultaneously, be beneficial to the use gas meter, flow meter that user is safer, gas company better carries out management of safe operation, reduces the generation of peril.
Shown in figure 7, by above-mentioned IC-card information exchange module, main website sell that gas management system completes and safety cut-off type intelligent gas meter between exchanges data.This is sold in gas management system and at least comprises with lower module:
Service management module: open an account for realizing, hair fastener, pays the fees, and moves back expense, changes table, transfer, the function of table and blacklist management is torn in cancellation open;
IC-card administration module: do for implementation tool blocking, mend card, the function that IC-card is repaired;
System arranges module: for realizing, keeper is set, menu setting, password setting, invoice format setting, the function of serial port setting.
Basic data module: for realizing website setting, region division, the setting of table type, the type of paying the fees setting, the function that manufacturer arranges;
In conjunction with shown in Fig. 2, in the system forming at safety cut-off type IC-card intelligent gas meter, gas company as media, realizes pre-payment and related management by IC-card again.IC-card has storage data function, can obtain after data by gas management system end on sale, makes data have off-line characteristic, by IC-card information exchange module, data is sent in safety cut-off type IC-card intelligent gas meter, thereby realizes exchanges data.Gas company realizes the unified management of all safety cut-off type IC-card intelligent gas meters by which.
While having comprised input abnormality all in the present embodiment in technique scheme, safety cut-off type IC-card intelligent gas meter is from obtaining abnormality signal to all processes of processing abnormality, safety cut-off type IC-card intelligent gas meter is when generation abnormality signal being detected, timely stop valve implements to cut out, by liquid crystal display, show simultaneously, and by buzzer warning, when all abnormality are eliminated, can return to normal condition by abnormality restoring circuit.
The combustion gas gas safety problem that safety cut-off type IC-card intelligent gas meter has avoided many factors to cause by the above-mentioned processing mode to abnormality, can reduce to the full extent the generation of the serious accidents such as fire that combustion gas causes, blast, by safety cut-off type IC-card intelligent gas meter, be beneficial to gas company's gas safe management work, user can be safer use gas meter, flow meter, ensure people's property and life security.
In the utility model, by using safety cut-off type IC-card intelligent gas meter, not fully burning of combustion gas can detected, when producing toxic gas and reaching certain concentration, cut off gas supply, and show and audible alarm by liquid crystal display, user can take appropriate measures, and avoids occurring that corrugated hose is uncomfortable, intoxicating phenomenon.
By using safety cut-off type IC-card intelligent gas meter, when externally supply gas pressure is too low, cut off fuel gas supply, prevent from because supply gas pressure is too low, causing gas-fired equipment cutoff and gas leak phenomenon, make user's use gas-fired equipment of safety standard more.
By using safety cut-off type IC-card intelligent gas meter, can use external Earthquake sensor when earthquake occurs, cut off timely air feed, the gas leakage accident of avoiding because of pipeline breaking or coming off and bring.
By using safety cut-off type IC-card intelligent gas meter, when there is battery undervoltage state, prompting user changes battery, guarantee the normal use of gas meter, flow meter various functions, when there is magnetic interference state, can be real-time by stop valve, close combustion gas and export, the magnetic interference of antimagnetic malice causes the inaccurate of gas meter, flow meter metering, when off-position, can preserve timely associative operation record and data, prevent the loss of data.
Safety cut-off type IC-card intelligent gas meter can be closed at generation stop valve, when liquid crystal display display alarm information, hummer send alerting signal, and can be by interrupting powered battery, after re-powering, gas meter, flow meter, after relevant abnormality is removed, carries out self check, recovers the state using normal.
Safety cut-off type IC-card intelligent gas meter is except possessing accurate measurement, reliable valve control, the pre-payment of conventional IC-card intelligent gas meter and being undertaken related management by IC-card information exchange module, the monitoring, alarming function that has also possessed combustion gas use abnormality, and can to output combustion gas, carry out safe and reliable cut-out timely, stop the generation of the perils such as fire and blast, be beneficial to related management and the security control of gas company, be beneficial to the use combustion gas that user is safer.
Except above-mentioned, also it should be noted that " embodiment ", " another embodiment " that spoken of in this manual, " embodiment " etc., refer to specific features, structure or the feature in conjunction with this embodiment, described and be included at least one embodiment that the application's generality describes.In instructions, a plurality of local appearance statement of the same race is not necessarily to refer to same embodiment.Furthermore, while describing a specific features, structure or feature in conjunction with arbitrary embodiment, what advocate is in conjunction with other embodiment, to realize this feature, structure or feature also to drop in scope of the present utility model.
Although the utility model is described with reference to a plurality of explanatory embodiment of the present utility model here, but, should be appreciated that, those skilled in the art can design a lot of other modification and embodiments, and these are revised and within embodiment will drop on the disclosed principle scope and spirit of the application.More particularly, in the scope of, accompanying drawing open in the application and claim, can carry out multiple modification and improvement to the building block of subject combination layout and/or layout.Except modification that building block and/or layout are carried out with improving, to those skilled in the art, other purposes will be also obvious.
Claims (8)
1. a safety cut-off type IC-card intelligent gas meter, comprise base table body and IC-card information exchange module, described base table body is provided with fuel gas inlet and gas outlet, in described fuel gas inlet, stop valve is installed, it is characterized in that: described gas meter, flow meter also comprises signal acquisition processing circuit and safety cut-off type IC-card intelligent gas meter terminal microcomputer controller, described signal acquisition processing circuit and IC-card information exchange module be access security cut-off type IC-card intelligent gas meter terminal microcomputer controller respectively, the mechanical counting device of the collection terminal access base table body of described signal acquisition processing circuit, described stop valve is by stop valve control circuit access security cut-off type IC-card intelligent gas meter terminal microcomputer controller,
For gathered the flow information of the inner combustion gas process of base table body by described signal acquisition processing circuit, and be converted into corresponding electronic measurement pulse signal, input safety cut-off type IC-card intelligent gas meter terminal microcomputer controller.
2. safety cut-off type IC-card intelligent gas meter according to claim 1, it is characterized in that: described stop valve comprises shell body, the inside of described shell body is also provided with inner housing (4), motor (1) is installed in described inner housing (4), gear reduction box (2), gear reduction box top cover (7) and valve rod (3), wherein one end of described valve rod (3) is provided with sealing cap (31), on the other end, be provided with connecting hole (32), input gear (21) is installed in described gear reduction box (2), output gear (22) and driving gear (23), the output shaft of described motor (1) is connected with input gear (21) power, input gear (21) is connected with output gear (22) power by Multi-stage transmission gear (24), after the power of input gear (21) being increased by a plurality of transmission gears (24), transfer to output gear (22), described output gear (22) is also connected with driving gear (23) power by transmission shaft (25), ratchet doubly-linked gear (26) and imperfect gear (27) are installed on described gear reduction box top cover (7), described ratchet doubly-linked gear (26) respectively with driving gear (23), imperfect gear (27) is meshed, described imperfect gear (27) is provided with biasing post (271), described biasing post (271) inserts the connecting hole (32) of valve rod (3) end, lock dog (28) is also installed on described gear reduction box top cover (7), and described lock dog (28) fastens with ratchet doubly-linked gear (26), for limiting ratchet doubly-linked gear (26) backwards rotation, on described lock dog (28) and imperfect gear (27), resetting means (29) is also all installed.
3. safety cut-off type IC-card intelligent gas meter according to claim 2, it is characterized in that: described motor (1) sealing is arranged on the inside of inner housing (4), and gear reduction box (2) and gear reduction box top cover (7), install by O-ring seal static seal; Described transmission shaft (25) is tightly connected with driving gear (23).
4. safety cut-off type IC-card intelligent gas meter according to claim 2, is characterized in that: described motor (1) is installed by O-ring seal static seal in the inside of inner housing (4).
5. safety cut-off type IC-card intelligent gas meter according to claim 2, it is characterized in that: the output shaft of described motor (1) stretches into gear reduction box (2), and between the output shaft of motor (1) and gear reduction box (2), be provided with O-ring seal, the action sealing of going forward side by side is installed; It is upper that described transmission shaft (25) is arranged on gear reduction box top cover (7) by the sealing of O-ring seal (5) reinforcement, and be connected with driving gear (23) power.
6. safety cut-off type IC-card intelligent gas meter according to claim 2, it is characterized in that: described ratchet doubly-linked gear (26) forms by fixedly mount ratchet-gear wheel above gear, described lock dog (28) fastens with ratchet-gear wheel, and gear is meshed with imperfect gear (27) and driving gear (23) respectively.
7. safety cut-off type IC-card intelligent gas meter according to claim 2, is characterized in that: the ratchet on described ratchet-gear wheel counterclockwise tilts, and for after fastening with lock dog (28), only can rotate towards clockwise direction.
8. safety cut-off type IC-card intelligent gas meter according to claim 2, it is characterized in that: described lock dog (28) is torque spring with the upper resetting means (29) of installing of imperfect gear (27), be used for making lock dog (28) to keep the state fastening with ratchet doubly-linked gear (26), imperfect gear (27) is automatically reset under the state of non-engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420044882.7U CN203733222U (en) | 2013-09-29 | 2014-01-23 | Intelligent safety cut-off type IC card gas meter |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310456850.8 | 2013-09-29 | ||
| CN2013104568508A CN103471675A (en) | 2013-09-29 | 2013-09-29 | Cutting type diaphragm gas meter |
| CN201420044882.7U CN203733222U (en) | 2013-09-29 | 2014-01-23 | Intelligent safety cut-off type IC card gas meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203733222U true CN203733222U (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013104568508A Pending CN103471675A (en) | 2013-09-29 | 2013-09-29 | Cutting type diaphragm gas meter |
| CN201410033790.3A Pending CN103745535A (en) | 2013-09-29 | 2014-01-23 | Safe-cutoff IC card intelligent gas meter |
| CN201420045275.2U Expired - Lifetime CN203732117U (en) | 2013-09-29 | 2014-01-23 | Intelligent safety cut-off type remote control gas meter |
| CN201420043663.7U Expired - Lifetime CN203848892U (en) | 2013-09-29 | 2014-01-23 | Safety-cutout-type Internet of Things intelligent gas meter |
| CN201410032763.4A Active CN103743447B (en) | 2013-09-29 | 2014-01-23 | Cut-out type diaphragm gas meter |
| CN201410032923.5A Pending CN103743448A (en) | 2013-09-29 | 2014-01-23 | Safe-cutoff remote control intelligent gas meter |
| CN201420044882.7U Expired - Lifetime CN203733222U (en) | 2013-09-29 | 2014-01-23 | Intelligent safety cut-off type IC card gas meter |
| CN201410032116.3A Pending CN103791964A (en) | 2013-09-29 | 2014-01-23 | Safe cut-off type internet-of-things intelligent gas meter |
Family Applications Before (6)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013104568508A Pending CN103471675A (en) | 2013-09-29 | 2013-09-29 | Cutting type diaphragm gas meter |
| CN201410033790.3A Pending CN103745535A (en) | 2013-09-29 | 2014-01-23 | Safe-cutoff IC card intelligent gas meter |
| CN201420045275.2U Expired - Lifetime CN203732117U (en) | 2013-09-29 | 2014-01-23 | Intelligent safety cut-off type remote control gas meter |
| CN201420043663.7U Expired - Lifetime CN203848892U (en) | 2013-09-29 | 2014-01-23 | Safety-cutout-type Internet of Things intelligent gas meter |
| CN201410032763.4A Active CN103743447B (en) | 2013-09-29 | 2014-01-23 | Cut-out type diaphragm gas meter |
| CN201410032923.5A Pending CN103743448A (en) | 2013-09-29 | 2014-01-23 | Safe-cutoff remote control intelligent gas meter |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410032116.3A Pending CN103791964A (en) | 2013-09-29 | 2014-01-23 | Safe cut-off type internet-of-things intelligent gas meter |
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| Country | Link |
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| CN (8) | CN103471675A (en) |
| WO (1) | WO2015043351A1 (en) |
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| CN202632420U (en) * | 2012-06-06 | 2012-12-26 | 浙江日通科技有限公司 | IC card intelligent gas meter system |
| CN103471675A (en) * | 2013-09-29 | 2013-12-25 | 成都秦川科技发展有限公司 | Cutting type diaphragm gas meter |
-
2013
- 2013-09-29 CN CN2013104568508A patent/CN103471675A/en active Pending
-
2014
- 2014-01-23 CN CN201410033790.3A patent/CN103745535A/en active Pending
- 2014-01-23 CN CN201420045275.2U patent/CN203732117U/en not_active Expired - Lifetime
- 2014-01-23 CN CN201420043663.7U patent/CN203848892U/en not_active Expired - Lifetime
- 2014-01-23 CN CN201410032763.4A patent/CN103743447B/en active Active
- 2014-01-23 CN CN201410032923.5A patent/CN103743448A/en active Pending
- 2014-01-23 CN CN201420044882.7U patent/CN203733222U/en not_active Expired - Lifetime
- 2014-01-23 CN CN201410032116.3A patent/CN103791964A/en active Pending
- 2014-08-27 WO PCT/CN2014/085250 patent/WO2015043351A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103745535A (en) * | 2013-09-29 | 2014-04-23 | 成都秦川科技发展有限公司 | Safe-cutoff IC card intelligent gas meter |
| CN113888805A (en) * | 2021-08-27 | 2022-01-04 | 金卡智能集团股份有限公司 | Near field and remote communication metering device and system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103745535A (en) | 2014-04-23 |
| CN103743447B (en) | 2016-09-21 |
| WO2015043351A1 (en) | 2015-04-02 |
| CN103743448A (en) | 2014-04-23 |
| CN203848892U (en) | 2014-09-24 |
| CN103791964A (en) | 2014-05-14 |
| CN103471675A (en) | 2013-12-25 |
| CN103743447A (en) | 2014-04-23 |
| CN203732117U (en) | 2014-07-23 |
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Address after: 610000 Longquanyi, Sichuan Province Industrial Park licensing Patentee after: CHENGDU QINCHUAN IOT TECHNOLOGY Co.,Ltd. Address before: 610000 Longquanyi, Sichuan Province Industrial Park licensing Patentee before: CHENGDU QINCHUAN TECHNOLOGY DEVELOPMENT Co.,Ltd. |
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