CN109341789A - A kind of diaphragm gas meter - Google Patents
A kind of diaphragm gas meter Download PDFInfo
- Publication number
- CN109341789A CN109341789A CN201811385088.8A CN201811385088A CN109341789A CN 109341789 A CN109341789 A CN 109341789A CN 201811385088 A CN201811385088 A CN 201811385088A CN 109341789 A CN109341789 A CN 109341789A
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- CN
- China
- Prior art keywords
- diaphragm
- valve deck
- wheel
- gas meter
- machine core
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
- G01F1/36—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction
- G01F1/38—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of a movable element, e.g. diaphragm, piston, Bourdon tube or flexible capsule
- G01F1/386—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure the pressure or differential pressure being created by the use of flow constriction the pressure or differential pressure being measured by means of a movable element, e.g. diaphragm, piston, Bourdon tube or flexible capsule with mechanical or fluidic indication
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses a kind of diaphragm gas meters, machine core including being provided with measurement chamber and diaphragm, it is provided with transmission mechanism on the machine core to be connected with diaphragm and the centre wheel that rotates and with the combustion gas distributor gear of moveable valve deck under diaphragm promotion, is additionally provided with connection centre wheel and valve deck and the turning wheel being meshed with centre wheel on the machine core.The present invention replaces connecting rod to be driven by turning wheel, solve the problems, such as that connecting rod is easily broken off after prolonged use, since turning wheel and centre wheel are intermeshed, there is determining transmission ratio, transmission accuracy is higher, keep valve deck movement more accurate, error of the combustion gas in distribution is reduced, improves the precision of gas meter, flow meter, simultaneously, it is driven by turning wheel, there is higher stability compared to link transmission.
Description
Technical field
The present invention relates to instrumental technique, in particular to a kind of combustion membrane type gas meter.
Background technique
Diaphragm gas meter is a kind of gas meter being widely used, higher, broad quantum, performance with the accuracy of measuring
Stablize, the advantages that technique is easily controllable, cost performance is high.There are four measurement chamber for setting in diaphragm gas meter, set on gas meter, flow meter
The centre wheel that is rotated is equipped under diaphragm promotion and with the valve seat and valve deck with distribution combustion gas, between valve deck and centre wheel
It is connected by link mechanism, in rotation, driving valve deck moves centre wheel on valve seat, to control each measurement chamber successively
Inflation and exhaust.It is driven between centre wheel and valve deck often through connecting rod on traditional diaphragm gas meter, this transmission side
Formula exists following insufficient: the transmission accuracy of connecting rod is relatively low, so that error of the combustion gas in distribution is larger, leads to final gas meter, flow meter
Measurement error is larger；The problem of connecting rod strength is lower, is easy to happen fracture after long-term use.
Summary of the invention
Present invention aim to address in existing diaphragm gas meter between centre wheel and valve deck by connecting rod connect,
After long-time service, the problem of connecting rod is easily broken off, a kind of diaphragm gas meter is provided, can effectively solve the problem that the above problem.
The purpose of the present invention is what is be achieved through the following technical solutions: a kind of diaphragm gas meter, including is provided with measurement chamber
The machine core of room and diaphragm is provided with the center that transmission mechanism is connected with diaphragm and rotates under diaphragm promotion on the machine core
Wheel and the combustion gas distributor gear with moveable valve deck are additionally provided with connection centre wheel and valve deck and and center on the machine core
Take turns the turning wheel being meshed.
The present invention distributes combustion gas by combustion gas distributor gear, successively inflates and is vented to control each measurement chamber.Combustion
After gas enters measurement chamber, motion of membrane is pushed, diaphragm drives centre wheel continuous rotation by transmission mechanism.The combustion gas distribution
Mechanism realizes the distribution of combustion gas by the movement of valve deck.The movement of the valve deck is realized by turning wheel.Due to turning wheel with
Centre wheel engagement when so that centre wheel rotating, is able to drive turning wheel synchronous rotation, since turning wheel is connected with valve deck simultaneously,
So that turning wheel has driven the movement of valve deck while rotation.The present invention replaces connecting rod to be driven by turning wheel, solves
The problem of connecting rod is after prolonged use easily broken off.Simultaneously because turning wheel and centre wheel are intermeshed, there is determination
Transmission ratio, transmission accuracy is higher, keeps valve deck movement more accurate, reduces error of the combustion gas in distribution, improves gas meter, flow meter
Precision.Meanwhile being driven by turning wheel, there is higher stability compared to link transmission.
Preferably, the machine core is provided with the rocker arm being connected with diaphragm, the swing arm connects vertical shaft, and the vertical shaft passes through
Link mechanism is connected with centre wheel.
Preferably, the combustion gas distributor gear includes valve seat and is arranged on valve seat the valve that can be relatively moved with valve seat
It covers, is provided with the blow vent being connected to measurement chamber on the valve seat.
Preferably, being provided with sliding slot on the valve deck, the boss for deviateing turning wheel center is provided on the turning wheel,
The protrusion is connected in the sliding slot.The centre wheel drives turning wheel to rotate synchronously in rotation.By that will stir
Boss on wheel is arranged in sliding slot, makes to form slide way mechanism between turning wheel and valve deck, and the rotary motion of turning wheel is converted
For the linear motion of valve deck.
Preferably, being provided with pilot hole on the valve deck, leading for fixed bracket connection is provided on the machine core
To bar, the guide rod passes through the pilot hole on valve deck.
Preferably, the pilot hole and sliding slot are arranged in a mutually vertical manner.
Preferably, the guide rod is made up of stainless steel material.
Preferably, being provided with counting device on the machine core.The counting device is used to measure and show the stream of combustion gas
Flux.
The beneficial effects of the present invention are: the present invention replaces connecting rod to be driven by turning wheel, solves connecting rod when long
Between the problem of being easily broken off after use.Since turning wheel and centre wheel are intermeshed, there is determining transmission ratio, transmission accuracy is more
Height keeps valve deck movement more accurate, reduces error of the combustion gas in distribution, improves the precision of gas meter, flow meter.Meanwhile by dialling
Driving wheel is driven, and has higher stability compared to link transmission.
Detailed description of the invention
Fig. 1 is axonometric drawing of the present invention.
Fig. 2 is top view of the present invention.
Fig. 3 is structure of the invention explosive view.
Fig. 4 is valve deck box-shaped structure schematic diagram of the present invention.
Fig. 5 is turning wheel positive structure schematic of the present invention.
Fig. 6 is turning wheel structure schematic diagram of the present invention.
In figure: 1, core body, 2, side cover, 3, rocking bar, 4, connecting rod, 5, centre wheel, 6, escape pipe, 7, fixed bracket, 8, meter
Number device, 9, rocker arm, 10, sealing ring, 11, diaphragm, 12, film clamping plate, 13, Magnetic drive component, 14, counting gear group, 15, valve deck sheet
Body, 16, valve deck box, 17, guide rod, 18, valve seat, 19, turning wheel, the 20, first driving wheel, the 21, second driving wheel, 22, vertical
Axis, 23, central axis.
Specific embodiment
Invention is further described below by specific embodiment and in conjunction with attached drawing.
As shown in figures 1 to 6, a kind of diaphragm gas meter, including machine core.The machine core includes core body 1.The core body
Escape pipe 6 is provided on 1.1 two sides of core body are connected separately with side cover 2.The side cover 2 and 1 shape of core body of 1 two sides of core body
At two independent measuring rooms.Diaphragm 11 is provided between each side cover and core body 1.The diaphragm 11 and core body 1 it
Between be provided with sealing ring 10.Each measuring room is divided into two independent measurement chamber by the diaphragm 11.1 two sides of core body
It is symmetrically arranged with the vertical shaft 22 of vertical direction setting.The vertical shaft 22 can be relatively rotated with core body 1.The close core body 1
Rocker arm 9 is provided in the Liang Ge measurement chamber of side.Described 9 one end of rocker arm is fixed on diaphragm 11 by film clamping plate 12, another
End is connected with the lower end of vertical shaft 22.The rocker arm 9 is swung under the drive of diaphragm, so that vertical shaft 22 be driven to rotate.Two
A 22 upper end of vertical shaft is respectively arranged with the rocking bar 3 vertical with vertical shaft.The end of two rocking bars 3 is respectively connected with connecting rod 4.
It is provided with central axis 23 on the machine core, is connected with centre wheel 5 on the central axis 23.4 end part of connecting rod
It is not connected with centre wheel 5.Two connecting rods 4 are connected to the same tie point on centre wheel 5, and the tie point deviates centre wheel 5
Center.
Gas distribution device is provided on the machine core.The gas distribution device includes valve seat 18.On the valve seat 18
It is provided with 4 blow vents.The blow vent is arranged in a linear.The blow vent and the indoor chamber of metering correspond, and every
A blow vent and corresponding chamber.The fixation bracket 7 being also connected on the machine core above valve seat 18.It is described solid
The guide rod 17 being provided on fixed rack 7 above valve seat 18.The guide rod 17 along valve seat upper vent hole arrangement side
To setting.There are two moveable valve decks for connection above the valve seat 18.The valve deck includes valve deck ontology 16 and valve deck box
15.15 sets of the valve deck box is above valve deck ontology 16.Pilot hole and sliding slot are provided on the valve deck box 15.It is described to lead
It is mutually perpendicular to hole and sliding slot.The guide rod 17 pass through the pilot hole on valve deck box 15 enable valve deck along
Guide rod 17 is mobile.
Symmetrically arranged turning wheel 19 there are two being also connected on the fixed bracket 7.Two turning wheels 19 while and center
Wheel engagement.Two turning wheels 19 and two valve decks correspond.It is provided on the turning wheel 19 and is connected with corresponding valve deck
The boss connect.The boss eccentric setting.The boss is connected in the sliding slot on valve deck.The centre wheel 5 is in rotation, together
When drive two turning wheels to rotate synchronously.It is connected due to passing through boss and sliding slot between turning wheel and valve deck, makes turning wheel and valve
Slide way mechanism is formed between lid, converts valve deck along the linear motion of guide rod for the rotary motion of turning wheel.
The first driving wheel 20 and the second driving wheel 21 are also connected on the machine core.First driving wheel 20 and center
5 engagement of wheel.First driving wheel 21 is engaged with the first driving wheel 20.First driving wheel is mutually perpendicular to the second driving wheel
Setting.Second driving wheel 21 connects Magnetic drive component 13, the Magnetic drive component connection count gear set 14, the counting
14 linkage counter 8 of gear set.
Working principle of the present invention is as follows: Liang Ge measurement chamber is respectively set in two sides in machine core, two meters in every side
It is separated between amount chamber by diaphragm.The combustion gas of distribution sequentially enters each measurement chamber, pushes motion of membrane, the movement of diaphragm
It drives rocker arm to swing, and then centre wheel rotation is driven by link mechanism, centre wheel is by transmission parts actuation counter, finally
The circulation of combustion gas is shown by counter.The distribution of combustion gas is completed by valve seat and valve deck.Pass through movement of the valve deck on valve seat
Different blow vents is turned on or off, successively inflates and is vented to control each measurement chamber, diaphragm is pushed
Centre wheel continuous rotation.The movement of the valve deck realizes that specific work process is as follows by turning wheel: centre wheel is rotating
When, it drives two turning wheels to rotate synchronously, is connected due to passing through boss and sliding slot between turning wheel and valve deck, make turning wheel and valve
Slide way mechanism is formed between lid, converts valve deck along the linear motion of guide rod for the rotary motion of turning wheel.
Finally, it should be noted that the foregoing is only a preferred embodiment of the present invention, it is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
To modify the technical solutions described in the foregoing embodiments or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in of the invention
Within protection scope.
Claims (8)
1. a kind of diaphragm gas meter, it is characterised in that: the machine core including being provided with measurement chamber and diaphragm (11), on the machine core
Transmission mechanism is provided with to be connected with diaphragm (11) and push the lower centre wheel (5) rotated in diaphragm (11) and with moving
Valve deck combustion gas distributor gear, connection centre wheel and valve deck are additionally provided on the machine core and what is be meshed with centre wheel stir
It takes turns (19).
2. a kind of diaphragm gas meter according to claim 1, which is characterized in that the machine core is provided with and diaphragm (11) phase
Rocker arm (9) even, the swing arm connect vertical shaft (22), and the vertical shaft (22) is connected by link mechanism with centre wheel (5).
3. a kind of diaphragm gas meter according to claim 1, which is characterized in that the combustion gas distributor gear includes valve seat
(18) and the valve deck that can be relatively moved with valve seat (18) is set on valve seat (18), is provided with and measures on the valve seat (18)
The blow vent of chamber.
4. a kind of diaphragm gas meter according to claim 1 or 2 or 3, which is characterized in that be provided with cunning on the valve deck
Slot, the boss for deviateing turning wheel center is provided on the turning wheel (19), and the boss is connected in the sliding slot.
5. a kind of diaphragm gas meter according to claim 4, which is characterized in that be provided with pilot hole, institute on the valve deck
The guide rod (17) that fixed bracket connection is provided on machine core is stated, the guide rod (17) passes through leading on valve deck
Xiang Kong.
6. a kind of diaphragm gas meter according to claim 5, which is characterized in that the pilot hole and sliding slot are mutually perpendicular to set
It sets.
7. a kind of diaphragm gas meter according to claim 1 or 2 or 3, which is characterized in that the guide rod (17) is not by
Rust Steel material is made.
8. a kind of diaphragm gas meter according to claim 1 or 2 or 3, which is characterized in that be provided with counting on the machine core
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811385088.8A CN109341789A (en) | 2018-11-20 | 2018-11-20 | A kind of diaphragm gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811385088.8A CN109341789A (en) | 2018-11-20 | 2018-11-20 | A kind of diaphragm gas meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109341789A true CN109341789A (en) | 2019-02-15 |
Family
ID=65316675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811385088.8A Pending CN109341789A (en) | 2018-11-20 | 2018-11-20 | A kind of diaphragm gas meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109341789A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405617A (en) * | 2021-05-25 | 2021-09-17 | 上海飞奥燃气设备有限公司 | Industrial and commercial gas meter and core thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009121980A (en) * | 2007-11-15 | 2009-06-04 | Ricoh Elemex Corp | Diaphragm gas meter |
| CN201765006U (en) * | 2009-09-15 | 2011-03-16 | 重庆市山城燃气设备有限公司 | Mechanical temperature converting membrane type gas meter |
| CN201803752U (en) * | 2010-06-29 | 2011-04-20 | 重庆市山城燃气设备有限公司 | Double-shaft double-cam diaphragm gas meter |
| CN105784048A (en) * | 2016-05-17 | 2016-07-20 | 成都秦川科技发展有限公司 | Diaphragm type gas meter |
| CN209485450U (en) * | 2018-11-20 | 2019-10-11 | 台州杜瑞仪表有限公司 | A kind of gas meter, flow meter |
-
2018
- 2018-11-20 CN CN201811385088.8A patent/CN109341789A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009121980A (en) * | 2007-11-15 | 2009-06-04 | Ricoh Elemex Corp | Diaphragm gas meter |
| CN201765006U (en) * | 2009-09-15 | 2011-03-16 | 重庆市山城燃气设备有限公司 | Mechanical temperature converting membrane type gas meter |
| CN201803752U (en) * | 2010-06-29 | 2011-04-20 | 重庆市山城燃气设备有限公司 | Double-shaft double-cam diaphragm gas meter |
| CN105784048A (en) * | 2016-05-17 | 2016-07-20 | 成都秦川科技发展有限公司 | Diaphragm type gas meter |
| CN209485450U (en) * | 2018-11-20 | 2019-10-11 | 台州杜瑞仪表有限公司 | A kind of gas meter, flow meter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405617A (en) * | 2021-05-25 | 2021-09-17 | 上海飞奥燃气设备有限公司 | Industrial and commercial gas meter and core thereof |
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