CN206787653U - A kind of diaphragm gas meter, the mechanism of locking diaphragm gas meter motion - Google Patents
A kind of diaphragm gas meter, the mechanism of locking diaphragm gas meter motion Download PDFInfo
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- CN206787653U CN206787653U CN201720707327.1U CN201720707327U CN206787653U CN 206787653 U CN206787653 U CN 206787653U CN 201720707327 U CN201720707327 U CN 201720707327U CN 206787653 U CN206787653 U CN 206787653U
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- locking
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Abstract
The utility model discloses a kind of diaphragm gas meter, the mechanism of locking diaphragm gas meter motion, the mechanism includes drive mechanism and pin rod, the drive mechanism is used to drive pin rod that evolution occurs in space, and during evolution occurs for pin rod, the motion that the pin rod can move transmission system for diaphragm gas meter provides obstruction, hinders to be used to force the motion transmission system stop motion above.Methods described is the locking means of above mechanism, and the diaphragm gas meter includes the mechanism.Gas meter, flow meter, locking means and the mechanism that this programme provides are respectively provided with the characteristics of scheme is simple, it is simultaneously high using above method and the gas meter, flow meter measuring accuracy of locking mechanism height, pipeline locking reliability, using above locking means and mechanism, the fluid flow resistance for corresponding to fuel gas pipeline can be effectively reduced.
Description
Technical field
Gas metering and break-make control technology field are the utility model is related to, more particularly to a kind of diaphragm gas meter, lock
Determine the mechanism of diaphragm gas meter motion.
Background technology
With social progress and the propulsion of China's Development of China's Urbanization, China's gas meter, flow meter is developed rapidly, popularity rate by
Year increases substantially, because air valve must be arranged in gas meter, flow meter by the special construction of integrated IC card Household diaphragm gas meter, therefore
Higher requirement is proposed to matching used air valve.Air valve mainly has two kinds used in IC-card diaphragm gas meter at present：One
Kind is magnetic valve, and another kind is electrically-controlled valve.
The characteristics of high manufacturing process, price be present in the valve of both forms；The valve of above form is not easy to help
Enclosed shape, easily polluted by pipeline impurity, cause the out of control of open and close valve；Above valve arrangement is complicated, volume is big, is unfavorable for integration
The application and popularizations of IC-card diaphragm gas meter；The characteristics of driving current is big, and valve switching times are long also be present with the drive mechanism of upper valve,
Closing valve with reference to intelligent gas meter, storage capacitor is realized close to the inner portion, and such as closing valve time length, correspondingly storage capacitor capacity is big, therefore there is also
Capacity fall off is big, easily causes the problem of battery life is short used in intelligent gas meter；Gas meter, flow meter air inlet position is arranged on upper valve
Put, it is high to valve sealing requirements, after existing valve uses material embrittlement easy to aging, usage time to grow, cause valve to reveal gas.
Because Unitary intellectual gas meter shows the inexorable trend of future development, and a key factor of quality is exactly
Whether an air valve easy for installation and that have high reliability is possessed.How to shorten valve switching times, reduce energy consumption and Geng An
It is those skilled in the art institute urgent problem to be solved entirely.
Utility model content
Be directed to diaphragm gas meter for set forth above, how to shorten valve switching times, reduce energy consumption and it is safer be this
Art personnel institute urgent problem to be solved, the utility model provide a kind of diaphragm gas meter, locking diaphragm gas meter fortune
Dynamic mechanism, gas meter, flow meter, locking means and the mechanism that this programme provides are respectively provided with the characteristics of scheme is simple, while use with top
Method and the gas meter, flow meter measuring accuracy of locking mechanism height, pipeline locking reliability are high, can be effective using above locking means and mechanism
Reduce the fluid flow resistance of corresponding fuel gas pipeline.
A kind of diaphragm gas meter provided by the utility model, locking diaphragm gas meter motion mechanism will by following technology
Put to solve problem：A kind of mechanism for locking diaphragm gas meter motion, including drive mechanism and pin rod, the drive mechanism are used for
Evolution occurs in space for driving pin rod, and during evolution occurs for pin rod, the pin rod can be that membrane type fires
The motion of gas meter motion transmission system provides obstruction, hinders to be used to force the motion transmission system stop motion above.
Existing diaphragm gas meter includes metering system, air-channel system, motion transmission system, number system, wherein, motion
Although the form of transmission system has a variety of, but when its role obtains the power of swing under pneumatic pressure including diaphragm, motion passes
Send system that the power is passed into bonnet and carry out open and close movement, while the power is also passed into number system, make counting
Each gear of device (or character wheel) turn, realize the purpose that number system counts.Meanwhile in the prior art, to realize diaphragm gas meter
Locking, be by setting magnetic valve as described above, electrically-controlled valve in the pipeline where diaphragm gas meter or with its other party
The air valve of formula driving, by the flowing for blocking combustion gas in pipeline so that the power that diaphragm can not obtain swing is realized.So
And due to the particularity of gas distributing system, as the air pressure in it can because air demand, gas consumption change and larger change occurs
Change, and be arranged on the valve in pipe network and exist in itself relative to the bigger fluid passage resistance of pipeline, air valve can cause as
The crushing of about 50 pas, and the total crushing of requirements of the national standard gas meter accounts for three points of gas meter crushing no more than 180 pas, air valve crushing
One of, it is seen then that influence of the air valve crushing to gas meter crushing is huge.Not only the manufacture to diaphragm gas meter proposes existing air valve
Higher requirement, for China is northern, western and industrial gas, natural gas also increased with crushing caused by upper air valve
Supply difficulty；Meanwhile because the particularity of natural gas property, air valve is difficult to from improper, used material in the prior art
Guarantee is not influenceed by natural gas, such as the sulphur, other granule foreigns etc. being rich in the natural gas of certain areas, is very easy to cause
Because blocking or corroding, the sealability of air valve drastically declines the sealing surface of air valve in a short time, is blocked in this case in air valve
When, it is impossible to good locking action is played for diaphragm gas meter, can not only stop the counting of diaphragm gas meter, cause client to entangle
Confusingly, while also certain potential safety hazard is caused for natural gas supply.
In this programme, the drive mechanism equivalent to for driving pin rod to move, when pin rod moves to ad-hoc location with
Diaphragm gas meter motion transmission system interacts, and now pin rod provides resistance for the motion of diaphragm gas meter motion transmission system
Hinder, hinder to be used to force the motion transmission system stop motion above.So, equivalent to it is described motion transmission system by
During obstruction, due to the diaphragm of diaphragm gas meter, number system and the annexation of motion transmission system, once move transmission system
After stopping transmission, diaphragm gas meter at most only allows part air bag to be communicated with gas outlet, but now because diaphragm can not move, therefore
The exhaust of diaphragm gas meter is interrupted, and now number system stops with the action of motion transmission system, the Exsufflation synchronization of gas meter, flow meter,
Diaphragm gas meter plays Truncation to the gas pipeline at place in itself.
Using above scheme, what usable diaphragm gas meter itself acted as corresponding pipeline blocks element, so, it is no longer necessary to
Set single air valve to be used for corresponding pipeline to block, due to no longer using single air valve, can effectively reduce pipe fitting in pipeline
Setting quantity, reduce pressure drop of the natural gas in course of conveying, reduce the supply difficulty of natural gas；As people in the art
Member, compared to existing air valve structure, will realize that the drive mechanism and pin rod are more easy and setup cost is lower, so,
The convenient implementation of this programme, promotional value are high；Due to no longer needing to set individually in the diaphragm gas meter pipeline using above mechanism
Air valve, can effectively avoid because air valve sealing face blocked or damaged locking to gas meter, flow meter impact, reach reduction day
The purpose of right air pipe fault rate；Simultaneously as above mechanism can be used for realizing that the supply of diaphragm gas meter is locked with count synchronization
It is fixed, therefore above mechanism can be also avoided effectively because air valve is not closed completely, and cause to produce dispute between supply Fang Yuyong gas sides, simultaneously
Beneficial to the security of gas pipeline.
As a kind of above-described further technical scheme of mechanism for locking diaphragm gas meter motion, prior art
In, diaphragm gas meter includes linkage, gear etc., and linkage described in diaphragm gas meter normal work is swung, institute
Pinion rotation is stated, the scheme for hindering to be easily achieved is provided as a kind of motion that transmission system is moved for diaphragm gas meter, it is described
Pin rod is in shaft-like, and the drive mechanism is connected with one end of pin rod, and the drive mechanism is used to drive length of the pin rod along pin rod
Do straight reciprocating motion in degree direction.In this programme, pin rod can arrive at pull bar in linkage in the presence of drive mechanism, connect
The lock to diaphragm gas meter can be achieved in the position that the gear teeth on position that bar, crank will be swung to, gear will turn to
It is fixed.Plane as where the length direction of pin rod with pull bar, connecting rod swing track is vertical；The length direction of pin rod and the axle of gear
Line direction or radial direction are parallel.
As a kind of implementation for directly acting on the gear teeth on diaphragm gas meter gear, gone back on the free end of the pin rod
It is provided with top or bayonet socket.Top and bayonet socket is used to coordinate with the teeth groove on gear or the gear teeth above, with top embedded teeth groove
Or after gear teeth insertion bayonet socket, by pin rod lock gear, reach directly or indirectly locking diaphragm gas meter and move transmission system
Purpose.Gear is directly acted on using pin rod in this programme, can effectively utilize the gear teeth on diaphragm gas meter part middle gear itself
Wearability.
As the specific implementation of drive mechanism, the drive mechanism includes tooth plate, sliding tooth and motor, described
Sliding tooth is connected with the rotor of motor, is additionally provided with a plurality of rack being parallel to each other on the tooth plate, the sliding tooth with
Rack tooth engagement on tooth plate, the pin rod are connected on tooth plate.Directly the rotary motion of sliding tooth can be changed in this programme
For the linear motion of tooth plate, so as to realize the fast braking to diaphragm gas meter.In existing intelligent gas meter, it is provided with individually
On off operating mode of the air valve to realize remote control or automatically control gas circuit, when air valve is driven using micro machine, valve opening is by setting
The battery being placed in gas meter, flow meter is directly powered, and is closed valve and is powered by storage capacitor, above electric capacity charges by battery.Due to existing
Air valve when closed valve core movement distance it is longer, simultaneously as air valve reasons in structure close valve needed for kinetic energy it is also larger, Gu Guan
The valve time is also longer, so not only needs electric capacity to have a bigger capacity, while the bigger electric leakage of electric capacity is to the service life of battery
Also there is large effect.In this programme, above motor can also be powered when locking diaphragm gas meter by storage capacitor,
But this programme provide lock mode due to no longer need as air valve core close required for larger stroke and longer time,
Therefore this programme locking gas meter, flow meter using storage capacitor power when, required capacitance is relatively low, battery last charge volume reduce, therefore this
Scheme also has the advantages of extending battery, compared to prior art, may be such that the service life of battery effectively obtains
Extend even more so that service life doubles.
To realize quick lock in gas meter, flow meter, it is parallel with the length direction of pin rod to be preferably arranged to the length direction of tooth plate, with
Realize pin rod relative to diaphragm gas meter move transmission system quickly into and out, that is, be advantageous to improve mechanism to membrane type
The control response speed of gas meter, flow meter.Further, to cause above motor to use common micro machine, to be arranged to
Readily available enough driving forces in the case that this and difficulty are minimum, being preferably arranged to the sliding tooth includes driving tooth, first
Driven tooth and the second driven tooth, driving tooth are little gear, are directly connected to motor, and the first driven tooth is to be engaged with driving tooth
Gear wheel, the second driven tooth is the little gear coaxial with the first driven tooth, such as sets the first driven tooth and the second driven tooth
For integral type structure, the second driven tooth engages with tooth plate.Driving tooth to the first driven tooth be deceleration transmission, the first driven tooth and the
Two driven tooth synchronous axial systems, so, above sliding tooth reduce rotating speed to avoid this equivalent to for a gear reduction unit, can reach
Mechanism caused large impact to diaphragm gas meter, improves purpose of the drive mechanism to pin rod driving force.
Because natural gas has certain corrosivity in itself, to avoid natural gas etc. from influenceing the life-span of mechanism, in addition to
Casing, the casing surround an installation cavity, and the motor and sliding tooth are respectively positioned in installation cavity, and the tooth plate is local or complete
Portion is located in installation cavity, and the free end of the pin rod extends to the outside of casing, in addition to seal, and the seal is used for real
Existing installation cavity and extraneous seal isolation.As those skilled in the art, need to set threading hole on the casing, for by pin
Hole etc. derived from bar or tooth plate, above threading hole may be configured as explosion-proof wiring hole, can be to be arranged at pin rod with upper seal
Or O-ring used in tooth plate export installation cavity in hole, filler, sealing shroud etc..
Because mechanism to diaphragm gas meter when locking, one end of pin rod and gas meter, flow meter effect can by certain power,
To cause tooth plate and pin rod to be respectively provided with better position precision, beneficial to the fit precision of each part in mechanism, the casing is in
Box-like, the drive mechanism is mounted in installation cavity, and the inside of casing is additionally provided with what is be oriented to for the tooth plate direction of motion
Guiding mechanism, the pin rod pass through the shell wall of casing by the hole being arranged on casing；
The seal includes being set on the pin rod on the outside of casing in the sealing shroud of shell-like, the sealing shroud, and seals
Cover and be fixed on for length retractable and flexible set, one end of sealing shroud in the outside wall surface of casing, the other end is fixed on the side of pin rod
On face.In the assembling form provided in this programme, above guiding mechanism is used to ensureing the positional precision of tooth plate, on the casing
The hole wall in hole can be alternatively pin rod and provide support as the constraint component to pin rod, the concrete mode of seal.In this programme, machine
Have on shell and be used to connecting the larger area of sealing shroud, therefore the corresponding end of sealing shroud can be connected to by the mode such as welding, being bonded
On casing.Because the sectional dimension of pin rod is not easy to set larger, while the both ends of sealing shroud are required to when pin rod moves
Certain pulling force is born, for the benefit of the sealing property of sealing shroud and sealing surface in reliability that pin rod connects and corresponding tie point,
It is preferably arranged to also include hoop body, the corresponding end of the guide sleeve is by hoop body banding on pin rod.
To avoid mechanism in the course of the work, during component contact in pin rod and diaphragm gas meter, due to contact position
It is undesirable, cause mechanism well to lock diaphragm gas meter, mechanism or diaphragm gas meter damage, also set on the tooth plate
Be equipped with blind hole, the one end for being used to be connected with tooth plate on the pin rod is inserted in the blind hole, and one end of pin rod insertion blind hole and
It is additionally provided with spring between the bottom of blind hole, the direction of motion of the axis direction of both the spring and blind hole with pin rod is put down
OK；
The variable depth of the pin rod insertion blind hole is changed, and when pin rod moves towards blind via bottom, the spring is by pin rod
Pressure and compression occurs.In this programme, when being used to stop pull bar, connecting rod such as pin rod, the end of pin rod is in driving machine
But acted directly on pull bar or connecting rod in the presence of structure, so, not only pin rod preferable can not lock pull bar, the position of connecting rod,
Motor, pull bar or connecting rod can also be damaged simultaneously, now, the spring that this programme provides can be reduced by compression
Active force between pin rod and pull bar or connecting rod, now motor can also be rotated further and ensure the security of motor,
When pull bar or connecting rod, which are rotated further, crosses pin rod, recoil of spring, shear stress can be provided by pin rod and realize diaphragm gas meter
Locking.The spring that i.e. this programme provides provides a kind of protection mechanism for mechanism and gas meter, flow meter.As this another art
Personnel, such as apply to the gas meter, flow meter using guiding valve, when above pin rod is used to interact with the center driving tooth of diaphragm gas meter,
Above spring also can play protective effect by elastic deformation.
Further, for ease of assembling the spring, a boss can be set in the bottom of blind hole and/or at the end of pin rod
Portion sets a boss, and so, above spring is set on corresponding boss and realizes the fixed and positioned of spring, meanwhile, with convex
Platform can also reduce the radial-deformation that spring occurs in stress, so, can reach the purpose for improving pin location precision.This side
In case, to avoid the annexation of pin rod and tooth plate from failing, the boss relative to blind hole wall evagination can be set on tooth plate,
Boss relative to pin rod wall evagination is set on pin rod, when mounted, inserted by pin rod in a manner of screwing in blind hole,
Boss mutually constrains with boss, reaches the purpose for avoiding tooth plate and pin rod Joint failure；As this another technical staff, can also lead to
Cross and pin rod is arranged to ladder shaft-like, the shaft shoulder on pin rod passes through machine as the spacing shaft shoulder when pin rod stretches out to a certain extent
Shell provides stop to the spacing shaft shoulder, to reach the purpose for avoiding tooth plate and pin rod Joint failure.
As described above, pin rod can coordinate the locking for realizing gas meter, flow meter with the gear in diaphragm gas meter, so, sold to improve
The mechanical property of boom end, the end for being preferably arranged to pin rod is in the strip parallel with teeth groove on gear or rack, so, to keep away
Exempt from the end of pin rod and corresponding rack or teeth groove occur dislocation and influence effective locking of the pin rod to corresponding gear, be arranged to, it is described
The guide groove parallel with blind hole axis direction is additionally provided with the hole wall of blind hole, guide pad is additionally provided with the pin rod, it is described
Guide pad is embedded in the guide groove.Above guide pad is engaged with guide groove for avoiding pin rod and tooth plate that relative turn occurs
It is dynamic.Further, for convenience of installing, the mode that the boss in such scheme can be arranged to be embedded in corresponding pin rod and/or
The mode that can be embedded in tooth plate, boss groove is such as set, boss is embedded in boss groove, and the bottom of boss and boss groove is additionally provided with bullet
The mode of property part.
Meanwhile this programme additionally provides a kind of method for locking diaphragm gas meter motion, this method passes through in diaphragm gas
Obstruction is set on the movement locus of table motion transmission system, forces the motion transmission system stop motion.Carried by this case
The method of confession realizes that diaphragm gas meter locks, and locking reliability is high, can effectively prevent the risk of gas leakage, while without changing
The structure of existing diaphragm gas meter, cost of implementation is low, good electric property, and it is convenient to realize, to crushing caused by natural gas flow
Small, lock speed is fast, less energy consumption.
Meanwhile this originating party case additionally provides a kind of diaphragm gas meter, including gas meter, flow meter body, in addition to any of the above one
The mechanism that scheme is provided, the mechanism are used to provide obstruction for diaphragm gas meter motion transmission system, force the motion to pass
Send system stop motion.
The diaphragm gas meter locking reliability that this case provides is high, can effectively prevent the risk of gas leakage, while electrical resistance
Can be good, cost of implementation is low, convenient to produce in enormous quantities, it is not necessary to structure improvement is done to existing diaphragm gas meter, it is convenient to realize, to day
Crushing caused by right flow of air is small, and lock speed is fast, less energy consumption.
The utility model has the advantages that：
The locking mechanism provided using above scheme, what usable diaphragm gas meter itself acted as corresponding pipeline blocks member
Part, so, it is no longer necessary to set single air valve to be used for corresponding pipeline and block, due to no longer using single air valve, can have
Effect reduces the setting quantity of pipe fitting in pipeline, reduces pressure drop of the natural gas in course of conveying, reduces the supply difficulty of natural gas；
As those skilled in the art, compared to existing air valve structure, to realize that the drive mechanism and pin rod are more easy and set
It is lower to be set to this, so, the convenient implementation of this programme, promotional value are high；Due in the diaphragm gas meter pipeline using above mechanism
No longer need to set single air valve, can effectively avoid causing to gas meter, flow meter locking because air valve sealing face is blocked or damaged
Influence, reach the purpose for reducing gas pipeline fault rate；Simultaneously as above mechanism can be used for the confession for realizing diaphragm gas meter
Gas locks with count synchronization, therefore above mechanism also effectively can avoid air valve from being not closed completely, and causes to produce between supply Fang Yuyong gas sides
Raw dispute, while beneficial to the security of gas pipeline.
The method provided by this case realizes that diaphragm gas meter locks, and locking reliability is high, can effectively prevent gas leakage
Risk, while without changing the structure of existing diaphragm gas meter, cost of implementation is low, good electric property, and it is convenient to realize, to natural
Crushing is small caused by flow of air, and lock speed is fast, less energy consumption.
The diaphragm gas meter locking reliability that this case provides is high, can effectively prevent the risk of gas leakage, while electrical resistance
Can be good, cost of implementation is low, convenient to produce in enormous quantities, it is not necessary to structure improvement is done to existing diaphragm gas meter, it is convenient to realize, to day
Crushing caused by right flow of air is small, and lock speed is fast, less energy consumption.
Brief description of the drawings
Fig. 1 is a kind of structure of one specific embodiment of mechanism for locking diaphragm gas meter motion described in the utility model
Schematic diagram, meanwhile, the figure is partial sectional view；
Fig. 2 is in a kind of one specific embodiment of mechanism for locking diaphragm gas meter motion described in the utility model, instead
Reflect the schematic diagram of driving toothing and sliding tooth and truss plate connection relation.
Reference in figure is followed successively by：1st, casing, 2, tooth plate, 3, rack, 4, guiding mechanism, 5, sliding tooth, 51, actively
Tooth, the 52, first driven tooth, the 53, second driven tooth, 6, motor, 7, pin rod, 8, seal, 9, spring, 10, guide groove,
11st, guide pad, 12, hoop body.
Embodiment
With reference to embodiment, the utility model is described in further detail, but structure of the present utility model is not only
It is limited to following examples.
Embodiment 1：
As depicted in figs. 1 and 2, a kind of mechanism for locking diaphragm gas meter motion, including drive mechanism and pin rod 7, it is described
Drive mechanism is used to drive pin rod 7 that evolution occurs in space, and during evolution occurs for pin rod 7, it is described
The motion that pin rod 7 can move transmission system for diaphragm gas meter provides obstruction, hinders to be used to force the motion transmission system above
System stop motion.
Existing diaphragm gas meter includes metering system, air-channel system, motion transmission system, number system, wherein, motion
Although the form of transmission system has a variety of, but when its role obtains the power of swing under pneumatic pressure including diaphragm, motion passes
Send system that the power is passed into bonnet and carry out open and close movement, while the power is also passed into number system, make counting
Each gear of device (or character wheel) turn, realize the purpose that number system counts.Meanwhile in the prior art, to realize diaphragm gas meter
Locking, be by setting magnetic valve as described above, electrically-controlled valve in the pipeline where diaphragm gas meter or with its other party
The air valve of formula driving, by the flowing for blocking combustion gas in pipeline so that the power that diaphragm can not obtain swing is realized.So
And due to the particularity of gas distributing system, as the air pressure in it can because air demand, gas consumption change and larger change occurs
Change, and be arranged on the valve in pipe network and exist in itself relative to the bigger fluid passage resistance of pipeline, air valve can cause as
The crushing of about 50 pas, and the total crushing of requirements of the national standard gas meter accounts for three points of gas meter crushing no more than 180 pas, air valve crushing
One of, it is seen then that influence of the air valve crushing to gas meter crushing is huge.Not only the manufacture to diaphragm gas meter proposes existing air valve
Higher requirement, for China is northern, western and industrial gas, natural gas also increased with crushing caused by upper air valve
Supply difficulty；Meanwhile because the particularity of natural gas property, air valve is difficult to from improper, used material in the prior art
Guarantee is not influenceed by natural gas, such as the sulphur, other granule foreigns etc. being rich in the natural gas of certain areas, is very easy to cause
Because blocking or corroding, the sealability of air valve drastically declines the sealing surface of air valve in a short time, is blocked in this case in air valve
When, it is impossible to good locking action is played for diaphragm gas meter, can not only stop the counting of diaphragm gas meter, cause client to entangle
Confusingly, while also certain potential safety hazard is caused for natural gas supply.
In this programme, the drive mechanism is equivalent to for driving pin rod 7 to move, when pin rod 7 moves to ad-hoc location
Interacted with diaphragm gas meter motion transmission system, now pin rod 7 provides for the motion of diaphragm gas meter motion transmission system
Hinder, hinder to be used to force the motion transmission system stop motion above.So, equivalent to it is described motion transmission system by
To when hindering, due to the diaphragm of diaphragm gas meter, number system and the annexation of motion transmission system, system is transmitted once moving
After system stops transmission, diaphragm gas meter at most only allows part air bag to be communicated with gas outlet, but now because diaphragm can not move,
Therefore the exhaust of diaphragm gas meter is interrupted, now number system stops with the action of motion transmission system, the Exsufflation synchronization of gas meter, flow meter
Only, diaphragm gas meter plays Truncation to the gas pipeline at place in itself.
Using above scheme, what usable diaphragm gas meter itself acted as corresponding pipeline blocks element, so, it is no longer necessary to
Set single air valve to be used for corresponding pipeline to block, due to no longer using single air valve, can effectively reduce pipe fitting in pipeline
Setting quantity, reduce pressure drop of the natural gas in course of conveying, reduce the supply difficulty of natural gas；As people in the art
Member, compared to existing air valve structure, will realize the drive mechanism and pin rod 7 is more easy and setup cost is lower, so,
The convenient implementation of this programme, promotional value are high；Due to no longer needing to set individually in the diaphragm gas meter pipeline using above mechanism
Air valve, can effectively avoid because air valve sealing face blocked or damaged locking to gas meter, flow meter impact, reach reduction day
The purpose of right air pipe fault rate；Simultaneously as above mechanism can be used for realizing that the supply of diaphragm gas meter is locked with count synchronization
It is fixed, therefore above mechanism can be also avoided effectively because air valve is not closed completely, and cause to produce dispute between supply Fang Yuyong gas sides, simultaneously
Beneficial to the security of gas pipeline.
In the present embodiment, shown drive mechanism can use manual actuation, electromagnetic drive, motor driving, pneumatic cylinder driving, oil
The modes such as cylinder pressure driving.
Embodiment 2：
As depicted in figs. 1 and 2, the present embodiment is further qualified on the basis of embodiment 1：As above-described one
The further technical scheme of mechanism of kind locking diaphragm gas meter motion, in the prior art, diaphragm gas meter includes connecting rod machine
Structure, gear etc., and linkage described in diaphragm gas meter normal work is swung, and the pinion rotation, is membrane type as one kind
The motion of gas meter, flow meter motion transmission system, which provides, hinders the scheme that is easily achieved, the pin rod 7 in shaft-like, the drive mechanism with
One end of pin rod 7 is connected, and the drive mechanism is used to drive length direction of the pin rod 7 along pin rod 7 to do straight reciprocating motion.This
In scheme, pin rod 7 can arrive at the position that pull bar in linkage, connecting rod, crank will be swung in the presence of drive mechanism
Put, the position i.e. achievable locking to diaphragm gas meter that the gear teeth on gear will turn to.As pin rod 7 length direction with
Plane where pull bar, connecting rod swing track is vertical；The length direction of pin rod 7 is parallel with the axis direction of gear or radial direction
.
As a kind of implementation for directly acting on the gear teeth on diaphragm gas meter gear, on the free end of the pin rod 7
It is additionally provided with top or bayonet socket.Top and bayonet socket is used to coordinate with the teeth groove on gear or the gear teeth above, with top embedded tooth
After groove or gear teeth insertion bayonet socket, by the lock gear of pin rod 7, reach directly or indirectly locking diaphragm gas meter motion transmission system
Purpose.Gear is directly acted on using pin rod 7 in this programme, can effectively utilize and be taken turns on diaphragm gas meter part middle gear itself
The wearability of tooth.
As the specific implementation of drive mechanism, the drive mechanism includes tooth plate 2, sliding tooth 5 and motor 6,
The sliding tooth 5 is connected with the rotor of motor 6, and a plurality of rack 3 being parallel to each other is additionally provided with the tooth plate 2, described
Sliding tooth 5 is engaged with the tooth of rack 3 on tooth plate 2, and the pin rod 7 is connected on tooth plate 2.Can be directly by sliding tooth 5 in this programme
Rotary motion be converted to the linear motion of tooth plate 2, so as to realize the fast braking to diaphragm gas meter.Existing intelligent gas meter
In, the on off operating mode that is provided with single air valve to realize remote control or automatically control gas circuit, when air valve is driven using micro machine
When dynamic, valve opening is directly powered by the battery being arranged in gas meter, flow meter, is closed valve and is powered by storage capacitor, above electric capacity is by electricity
Charge in pond.Due to existing air valve when closed valve core movement distance it is longer, simultaneously as air valve reasons in structure close valve needed for
Kinetic energy is also larger, therefore closing valve time is also longer, so not only needs electric capacity to have bigger capacity, while the electric leakage pair that electric capacity is bigger
The service life of battery also has large effect.In this programme, above motor 6 can also lead to when locking diaphragm gas meter
Storage capacitor power supply is crossed, but the lock mode that this programme provides is due to no longer needing the larger row as required for closing air valve core
Journey and longer time, thus this programme locking gas meter, flow meter using storage capacitor power when, required capacitance is relatively low, battery last
Charge volume reduces, therefore this programme also has the advantages of extending battery, compared to prior art, may be such that making for battery
Effectively it is extended with the life-span even more so that service life doubles.
To realize quick lock in gas meter, flow meter, it is parallel with the length direction of pin rod 7 to be preferably arranged to the length direction of tooth plate 2,
With realize pin rod 7 relative to diaphragm gas meter move transmission system quickly into and out, that is, be advantageous to improve mechanism pair
The control response speed of diaphragm gas meter.Further, to cause above motor 6 to use common micro machine, with
Readily available enough driving forces in the case that setup cost and difficulty are minimum, being preferably arranged to the sliding tooth 5 is included actively
Tooth 51, the first driven tooth 52 and the second driven tooth 53, driving tooth 51 are little gear, are directly connected to motor 6, first is driven
Tooth 52 is the gear wheel that is engaged with driving tooth 51, and the second driven tooth 53 is the little gear coaxial with the first driven tooth 52, second from
Moving teeth 53 engages with tooth plate 2.The driven tooth of driving tooth 51 to the first 52 is deceleration transmission, the first driven tooth 52 and the second driven tooth 53
Synchronous axial system, so, above sliding tooth 5 reduce rotating speed to avoid mechanism pair equivalent to for a gear reduction unit, can reach
Diaphragm gas meter caused large impact, improves purpose of the drive mechanism to the driving force of pin rod 7.
Because natural gas has certain corrosivity in itself, to avoid natural gas etc. from influenceing the life-span of mechanism, in addition to
Casing 1, the casing 1 surround an installation cavity, and the motor 6 and sliding tooth 5 are respectively positioned in installation cavity, 2 innings of the tooth plate
Portion is entirely located in installation cavity, and the free end of the pin rod 7 extends to the outside of casing 1, in addition to seal 8, described close
Sealing 8 is used to realize installation cavity and extraneous seal isolation.As those skilled in the art, setting is needed to wear on the casing 1
String holes, for by hole etc. derived from pin rod 7 or tooth plate 2, above threading hole to may be configured as explosion-proof wiring hole, can with upper seal 8
Think to be arranged at and pin rod 7 or tooth plate 2 are exported into O-ring used in installation cavity in hole, filler, sealing shroud etc..
Because mechanism to diaphragm gas meter when locking, one end of pin rod 7 and gas meter, flow meter effect can by certain power,
To cause tooth plate 2 and pin rod 7 to be respectively provided with better position precision, beneficial to the fit precision of each part in mechanism, the casing 1
Box shaped, the drive mechanism is mounted in installation cavity, and the inside of casing 1 is additionally provided with and led for the direction of motion of tooth plate 2
To guiding mechanism 4, the pin rod 7 passes through the shell wall of casing 1 by the hole that is arranged on casing 1；
The seal 8 includes being set in the sealing shroud of shell-like, the sealing shroud on the pin rod 7 in the outside of casing 1, and close
Big envelope is length retractable and flexible set, and one end of sealing shroud is fixed in the outside wall surface of casing 1, and the other end is fixed on pin rod 7
Side on.In the assembling form provided in this programme, above guiding mechanism 4 is used for the positional precision for ensureing tooth plate 2, the machine
The hole wall in the hole on shell 1 can be alternatively pin rod 7 and provide support as the constraint component to pin rod 7, the concrete mode of seal 8.
There is the larger area for being used for connecting sealing shroud, therefore the corresponding end of sealing shroud can be by welding, being bonded in this programme, on casing 1
It is connected to etc. mode on casing 1.Because the sectional dimension of pin rod 7 is not easy to set larger, while sealed when pin rod 7 moves
The both ends of set are required to bear certain pulling force, close in reliability that for the benefit of sealing shroud connects with pin rod 7 and corresponding tie point
The sealing property of front cover, it is preferably arranged to also include hoop body 12, the corresponding end of the guide sleeve is by the banding of hoop body 12 in pin rod 7
On.
To avoid mechanism in the course of the work, during component contact in pin rod 7 and diaphragm gas meter, due to contact position
It is undesirable, cause mechanism well to lock diaphragm gas meter, mechanism or diaphragm gas meter damage, gone back on the tooth plate 2
Blind hole is provided with, the one end for being used to be connected with tooth plate 2 on the pin rod 7 is inserted in the blind hole, and pin rod 7 inserts the one of blind hole
Spring 9 is additionally provided between end and the bottom of blind hole, the motion of the axis direction of both the spring 9 and blind hole with pin rod 7
Direction is parallel；
The variable depth that the pin rod 7 inserts blind hole is changed, and when pin rod 7 moves towards blind via bottom, the spring 9 is by pin
The pressure of bar 7 and compression occurs.In this programme, when being used to stop pull bar, connecting rod such as pin rod 7, the end of pin rod 7 is being driven
But acted directly on pull bar or connecting rod in the presence of motivation structure, so, not only pin rod 7 can not preferable locking pull bar, connecting rod
Position, while motor 6, pull bar or connecting rod can also be damaged, now, the spring 9 that this programme provides can be become by compressing
Shape, reduce the active force between pin rod 7 and pull bar or connecting rod, now motor 6 can also be rotated further and ensure motor 6
Security, when pull bar or connecting rod are rotated further when crossing pin rod 7, the resilience of spring 9, pin rod 7 can be passed through shear stress is provided and realized
The locking of diaphragm gas meter.The spring 9 that i.e. this programme provides provides a kind of protection mechanism for mechanism and gas meter, flow meter.
Further, for ease of assembling the spring 9, a boss can be set in the bottom of blind hole and/or in pin rod 7
One boss of end set, so, above spring 9 are set on corresponding boss and realize the fixed and positioned of spring 9, meanwhile, with
Convex platform can also reduce the radial-deformation that spring 9 occurs in stress, so, can reach the mesh for improving the positional precision of pin rod 7
's.In this scheme, to avoid the annexation of pin rod 7 and tooth plate 2 from failing, it can be set on tooth plate 2 outside relative to blind hole wall
Convex boss, on pin rod 7 set relative to the wall evagination of pin rod 7 boss, when mounted, by by pin rod 7 with screw-in
Mode is inserted in blind hole, and boss mutually constrains with boss, reaches the purpose for avoiding tooth plate 2 and the Joint failure of pin rod 7.
As described above, pin rod 7 can coordinate the locking for realizing gas meter, flow meter with the gear in diaphragm gas meter, so, to improve
The mechanical property of the end of pin rod 7, the end for being preferably arranged to pin rod 7 are in the strip parallel with teeth groove on gear or rack 3, this
Sample, effective locking of the pin rod 7 to corresponding gear is influenceed to avoid the end of pin rod 7 and corresponding rack 3 or teeth groove that dislocation occurs, if
It is set to, the guide groove 10 parallel with blind hole axis direction is additionally provided with the hole wall of the blind hole, is additionally provided with the pin rod 7
Guide pad 11, the guide pad 11 are embedded in the guide groove 10.Above guide pad 11 is engaged with guide groove 10 for avoiding
Pin rod 7 relatively rotates with tooth plate 2.Further, for convenience of installing, the boss in such scheme can be arranged to be embedded in
The mode in pin rod 7 and/or the mode that can be embedded in tooth plate 2 are corresponded to, boss groove is such as set, boss is embedded in boss groove, boss
The mode of elastic component is additionally provided with the bottom of boss groove.
Embodiment 3：
As depicted in figs. 1 and 2, the present embodiment provides a kind of diaphragm gas meter, including gas meter, flow meter body, in addition to take up an official post
Any one mechanism that meaning one embodiment is provided, the mechanism are used to provide resistance for diaphragm gas meter motion transmission system
Hinder, force the motion transmission system stop motion.
The diaphragm gas meter locking reliability that this case provides is high, can effectively prevent the risk of gas leakage, while electrical resistance
Can be good, cost of implementation is low, convenient to produce in enormous quantities, it is not necessary to structure improvement is done to existing diaphragm gas meter, it is convenient to realize, to day
Crushing caused by right flow of air is small, and lock speed is fast, less energy consumption.
Embodiment 4：
The present embodiment also provides a kind of method for locking diaphragm gas meter motion, and this method in diaphragm gas meter by moving
Obstruction is set on the movement locus of transmission system, forces the motion transmission system stop motion.The side provided by this case
Method realizes that diaphragm gas meter locks, and locking reliability is high, can effectively prevent the risk of gas leakage, while without changing existing film
The structure of formula gas meter, flow meter, cost of implementation is low, good electric property, and it is convenient to realize, small to crushing caused by natural gas flow, locking
Speed is fast, less energy consumption.
The specific implementation of method described in the present embodiment can use any one in both embodiment 1 or embodiment 2
Any one technical scheme provided is realized.
Above content is to combine the further description that specific preferred embodiment is made to the utility model, it is impossible to is recognized
Determine specific embodiment of the present utility model and be confined to these explanations.For the common skill of the utility model art
For art personnel, the other embodiment that is drawn in the case where not departing from the technical solution of the utility model should be included in this practicality
In new protection domain.
Claims (9)
1. a kind of mechanism for locking diaphragm gas meter motion, it is characterised in that including drive mechanism and pin rod (7), the driving
Mechanism is used to drive pin rod (7) that evolution occurs in space, and during evolution occurs for pin rod (7), it is described
The motion that pin rod (7) can move transmission system for diaphragm gas meter provides obstruction, hinders to be used to force the motion transmission above
System stop motion.
A kind of 2. mechanism for locking diaphragm gas meter motion according to claim 1, it is characterised in that the pin rod (7)
In shaft-like, the drive mechanism is connected with the one end of pin rod (7), and the drive mechanism is used to drive pin rod (7) along pin rod (7)
Length direction do straight reciprocating motion.
A kind of 3. mechanism for locking diaphragm gas meter motion according to claim 2, it is characterised in that the pin rod (7)
Free end on be additionally provided with top or bayonet socket.
A kind of 4. mechanism for locking diaphragm gas meter motion according to claim 2, it is characterised in that the drive mechanism
Including tooth plate (2), sliding tooth (5) and motor (6), the sliding tooth (5) is connected with the rotor of motor (6), described
The a plurality of rack (3) being parallel to each other is additionally provided with tooth plate (2), the sliding tooth (5) is nibbled with rack (3) tooth on tooth plate (2)
Close, the pin rod (7) is connected on tooth plate (2).
5. a kind of mechanism for locking diaphragm gas meter motion according to claim 4, it is characterised in that also including casing
(1), the casing (1) surrounds an installation cavity, and the motor (6) and sliding tooth (5) are respectively positioned in installation cavity, the tooth plate
(2) partially or fully in installation cavity, the free end of the pin rod (7) extends to the outside of casing (1), in addition to seal
(8), the seal (8) is used to realize installation cavity and extraneous seal isolation.
A kind of 6. mechanism for locking diaphragm gas meter motion according to claim 5, it is characterised in that the casing (1)
Box shaped, the drive mechanism is mounted in installation cavity, and the inside of casing (1) is additionally provided with for tooth plate (2) motion side
To the guiding mechanism (4) of guiding, the pin rod (7) passes through the shell wall of casing (1) by the hole being arranged on casing (1)；
The seal (8) includes being set on the pin rod (7) on the outside of casing (1) in the sealing shroud of shell-like, the sealing shroud, and
Sealing shroud is length retractable and flexible set, and one end of sealing shroud is fixed in the outside wall surface of casing (1), and the other end is fixed on pin
On the side of bar (7).
A kind of 7. mechanism for locking diaphragm gas meter motion according to claim 4, it is characterised in that the tooth plate (2)
On be additionally provided with blind hole, the one end for being used to be connected with tooth plate (2) on the pin rod (7) is inserted in the blind hole, and pin rod (7) is slotting
Enter to be additionally provided with spring (9) between one end of blind hole and the bottom of blind hole, the axis direction of both the spring (9) and blind hole is equal
It is parallel with the direction of motion of pin rod (7)；
The variable depth of the pin rod (7) insertion blind hole is changed, and when pin rod (7) moves towards blind via bottom, the spring (9) by
The pressure of pin rod (7) and compression occurs.
A kind of 8. mechanism for locking diaphragm gas meter motion according to claim 7, it is characterised in that the hole of the blind hole
The guide groove parallel with blind hole axis direction (10) is additionally provided with wall, guide pad (11), institute are additionally provided with the pin rod (7)
State in the embedded guide groove (10) of guide pad (11).
9. a kind of diaphragm gas meter, including gas meter, flow meter body, it is characterised in that also including any one institute in claim 1 to 8
The mechanism of offer, the mechanism are used to provide obstruction for diaphragm gas meter motion transmission system, force the motion transmission system
Stop motion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720707327.1U CN206787653U (en) | 2017-06-16 | 2017-06-16 | A kind of diaphragm gas meter, the mechanism of locking diaphragm gas meter motion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720707327.1U CN206787653U (en) | 2017-06-16 | 2017-06-16 | A kind of diaphragm gas meter, the mechanism of locking diaphragm gas meter motion |
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| Publication Number | Publication Date |
|---|---|
| CN206787653U true CN206787653U (en) | 2017-12-22 |
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ID=60717970
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|---|---|---|---|
| CN201720707327.1U Expired - Fee Related CN206787653U (en) | 2017-06-16 | 2017-06-16 | A kind of diaphragm gas meter, the mechanism of locking diaphragm gas meter motion |
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| CN (1) | CN206787653U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036670A (en) * | 2017-06-16 | 2017-08-11 | 成都市九运机电科技有限责任公司 | A kind of diaphragm gas meter, the method and mechanism of locking diaphragm gas meter motion |
-
2017
- 2017-06-16 CN CN201720707327.1U patent/CN206787653U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107036670A (en) * | 2017-06-16 | 2017-08-11 | 成都市九运机电科技有限责任公司 | A kind of diaphragm gas meter, the method and mechanism of locking diaphragm gas meter motion |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610000 Sichuan Province, Chengdu hi tech Zone, No. nine Hing Road, building 3, No. 3, layer 1 Patentee after: Sichuan Jiuyun Jusheng Technology Co., Ltd. Address before: 610000 Sichuan Province, Chengdu hi tech Zone, No. nine Hing Road, building 3, No. 3, layer 1 Patentee before: Chengdu nine Electromechanical Technology Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 Termination date: 20210616 |