CN207515860U - Hidden type temperature compensation membrane type gas meter movement - Google Patents
Hidden type temperature compensation membrane type gas meter movement Download PDFInfo
- Publication number
- CN207515860U CN207515860U CN201721595041.5U CN201721595041U CN207515860U CN 207515860 U CN207515860 U CN 207515860U CN 201721595041 U CN201721595041 U CN 201721595041U CN 207515860 U CN207515860 U CN 207515860U
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- CN
- China
- Prior art keywords
- crank
- gas meter
- disc
- wobble
- frame
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Abstract
The utility model is related to diaphragm gas meter technical fields, provide a kind of hidden type temperature compensation membrane type gas meter movement, and central gear is fixedly mounted on the lower surface of crank disc；There is hiding space between crank disc and transition gear；Thermosensitive bimetal and wobble crank frame are mounted in hiding space；The pivot end of wobble crank frame is pivotally connected with crank disc；The open end of thermosensitive bimetal is stuck on the open slot of wobble crank frame；The fixing end of thermosensitive bimetal is fixedly connected on by fixed block on crank disc；Arc groove is provided on crank disc；Crank axle is mounted on the movable end of wobble crank frame, and crank axle is slidably matched with arc groove.By the way that thermosensitive bimetal and wobble crank frame are mounted in hiding space, in the case where additionally not increasing mounting height, reduce the height between pull rod and transition gear, the link position of pull rod and crank axle is reduced to the distance of crank disc and the link position of crank axle, increases the measuring accuracy of gas meter, flow meter.
Description
Technical field
The utility model is related to diaphragm gas meter technical field, more particularly to a kind of hidden type temperature compensation membrane type gas meter
Movement.
Background technology
Diaphragm gas meter be it is a kind of by it is internal can the inner membrance storehouse of soft change measure the metering device of combustion gas volume；It has
Accurate measurement, the features such as safe and reliable, service life is long.
Temperature-compensating gas meter, flow meter is to add mechanical temperature conversion device in the cartridge assemblies inside common diaphragm gas meter,
It has the characteristics that common diaphragm gas meter, and realizes the equivalent metering of combustion gas magnitude under condition of different temperatures.
There are many structures for temperature-compensating gas meter, flow meter currently on the market, and one of which structure is to pull out wheel at the center of gas meter, flow meter
One helix heat-sensitive duplex metal reed of upper increase, the spiral center end of reed is fixed on upper surface, the outside of wheel disc by fixed seat
Extension rectilinear end be clamped on connecting rod column, the lower end of connecting rod column is slidably installed in the arc groove for pulling out wheel, the upper end of connecting rod column with
Drag link mechanism connects.This structure has the disadvantage that：1st, since heat-sensitive duplex metal reed sets drag link mechanism and center to pull out wheel
Between, therefore, increase connecting rod column and pull rod link position pulled out to connecting pole and center wheel link position distance, reduce
The measuring accuracy of temperature-compensating gas meter, flow meter, reliability are also poor；2nd, the whole height of gas meter, flow meter is increased, increases and is manufactured into
This.
Utility model content
Technical problem to be solved in the utility model is：A kind of hidden type temperature compensation membrane type gas meter movement is provided,
Solve the problems, such as measuring accuracy deficiency present in existing diaphragm gas meter.
Technical solution is used by the utility model solves its technical problem：Hidden type temperature compensation membrane type gas meter machine
Core, including transition gear, central gear, crank disc, wobble crank frame, crank axle, thermosensitive bimetal and fixed block；In described
Heart gear is fixedly mounted on the lower surface of the crank disc；The transition gear is engaged with the central gear；The crank disc
There is hiding space between the transition gear；The thermosensitive bimetal and wobble crank frame are mounted on the hiding space
It is interior；The pivot end of the wobble crank frame is pivotally connected with the crank disc；The movable end of the wobble crank frame is provided with open slot；
The open end of the thermosensitive bimetal is stuck on the open slot；The fixing end of the thermosensitive bimetal is consolidated by fixed block
Surely it is connected on the crank disc；The arc using the pivot end of the wobble crank frame as the center of circle is provided on the crank disc
Slot；The crank axle is mounted on the movable end of the wobble crank frame, and the crank axle is slidably matched with the arc groove.
Further, it is provided with locating slot in the fixing end of the thermosensitive bimetal；Card is provided on the fixed block
Connect the groove of the thermosensitive bimetal；The locating piece being adapted with the locating slot is provided in the groove.
Further, the upper end of the fixed block is provided with described in Anti-rotary block is provided with and the Anti-rotary block phase on crank disc
The anti-rotating hole of adaptation；The Anti-rotary block is fixedly connected in the anti-rotating hole.
Further, the upper surface of the crank disc is provided with initial position graduation mark；On the crank axle with it is described just
The corresponding position of beginning position scale line is provided with pointer.
Further, the limiting being additionally provided on the lower surface of the crank disc on the outside of the thermosensitive bimetal
Block.
The beneficial effects of the utility model are：
1st, by the way that thermosensitive bimetal and wobble crank frame are mounted in hiding space, do not increasing mounting height additionally
In the case of, the height between pull rod and transition gear is reduced, that is, reduces the link position of pull rod and crank axle to crank
The distance of the link position of disk and crank axle increases the measuring accuracy of gas meter, flow meter.
2nd, by the way that thermosensitive bimetal and wobble crank frame are mounted in hiding space, the whole high of gas meter, flow meter is reduced
Degree, has saved manufacture cost.
3rd, when ambient temperature changes, corresponding deformation occurs for thermosensitive bimetal, drives the rotation of wobble crank frame,
And then crank axle is driven to be slided in arc groove, centre distance and circumferential angle of the crank axle relative to crank disc are changed, into
The open and close time of the movement travel of epithelium and valve when one step changes metering, achieve the purpose that temperature-compensating.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the decomposition texture schematic diagram of the utility model；
Fig. 3 is the exploded enlarged drawing of the utility model.
Reference numeral is in figure：1- transition gears, 2- central gears, 3- crank discs, 4- wobble crank framves, 5- crank axles,
6- thermosensitive bimetals, 7- fixed blocks, 8- core bodies, 9- vertical shafts, 10- pull rods, 11- rocking arms, 301- arc grooves, 302- anti-rotations
Hole, 303- initial position graduation marks, 401- open slots, 501- pointers, 601- locating slots, 701- grooves, 702- locating pieces, 703-
Anti-rotary block.
Specific embodiment
The utility model is described further with reference to the accompanying drawings and examples：
As shown in Figure 1 to Figure 3, hidden type temperature compensation membrane type gas meter movement described in the utility model, including transition
Gear 1, central gear 2, crank disc 3, wobble crank frame 4, crank axle 5, thermosensitive bimetal 6 and fixed block 7；The centre tooth
Wheel 2 is fixedly mounted on the lower surface of the crank disc 3；The transition gear 1 is engaged with the central gear 2；The crank disc 3
There is hiding space between the transition gear 1；The thermosensitive bimetal 6 and wobble crank frame 4 are mounted on described hiding
In space；The pivot end of the wobble crank frame 4 is pivotally connected with the crank disc 3；The movable end of the wobble crank frame 4 is provided with
Open slot 401；The open end of the thermosensitive bimetal 6 is stuck on the open slot 401；The thermosensitive bimetal 6 is consolidated
Fixed end is fixedly connected on by fixed block 7 on the crank disc 3；It is provided on the crank disc 3 with the wobble crank frame 4
Pivot end is the arc groove 301 in the center of circle；The crank axle 5 is mounted on the movable end of the wobble crank frame 4, the crank axle 5
It is slidably matched with the arc groove 301.
As shown in Figure 1, being equipped with vertical shaft 9 on core body 8, rocking arm 11 on vertical shaft 9 is installed, pull rod is installed on rocking arm 11
10, pull rod 10 is connect with the upper end of crank axle 5.The central gear 2 is mounted on by shaft on core body 8, central gear 2
Upper surface is fixedly connected with crank disc 3, and the crank disc 3 and central gear 2 and shaft can also be integrally formed, and increase its connection
Stability.The transition gear 1 is located at the lower section of crank disc 3, and on core body 8；The central gear 2 passed through
It crosses gear 1 and drives the character wheel of counter rotation being mounted on core body 8, realize mechanical count.In the transition gear 1 and crank
Hiding space is provided between disk 3, thermosensitive bimetal 6 and wobble crank frame 4 are mounted in the hiding space.The temperature-sensitive
Bimetal leaf 6 is coiled into spiral of Archimedes shape for two different temperature-sensitive bimetal composite pieces, the thermosensitive bimetal 6
Fixing end is spiral shape, and the lower surface of crank disc 3 is fixed in by fixed block 7, and the open end of the thermosensitive bimetal 6 is
Linear, the open end are stuck on the open slot 401 of the wobble crank frame 4.When ambient temperature changes, the double gold of the temperature-sensitive
The meeting for belonging to piece 6 is stretched with the variation of temperature, and open end will shift, and then changes crank axle 5 in arc groove 301
Interior position.
By the way that thermosensitive bimetal 6 and wobble crank frame 4 are mounted in hiding space, do not increasing mounting height additionally
In the case of, the height between pull rod 10 and transition gear 1 is reduced, first, reduces the connection position of pull rod 10 and crank axle 5
The distance of crank disc 3 and the link position of crank axle 5 is put, increases the stability of transmission, improves the metering essence of gas meter, flow meter
Degree；Secondly, the mounting height of temperature compensation component in gas meter, flow meter is reduced, reduces the whole height of gas meter, flow meter, the system of having saved
Cause this.
Diaphragm gas meter is during use, and with the variation of environment temperature, thermosensitive bimetal 6 can do periodical pendulum
It is dynamic, in order to increase the stability that thermosensitive bimetal 6 is connect with fixed block 7, preferably, the thermosensitive bimetal 6
Fixing end on be provided with locating slot 601；The groove 701 for being clamped the thermosensitive bimetal 6 is provided on the fixed block 7；
The locating piece 702 being adapted with the locating slot 601 is provided in the groove 701.Pass through locating slot 601 and locating piece 702
Cooperation, can prevent the thermosensitive bimetal 6 from being slided in the groove 701 of the fixed block 7, increase the stability of connection.
The shape of the locating slot 601 and locating piece 702 can be V-arrangement, U-shaped etc..
The fixed block 7 can be fixed by welding on crank disc 3, can also be bonded in by glue on crank disc 3.
In order to improve the stability that the fixed block 7 is connect with the crank disc 3, reduce when the thermosensitive bimetal 6 is swung to institute
The influence of fixed block 7 and 3 link position of crank disc is stated, as priority scheme, the upper end of the fixed block 7 is provided with Anti-rotary block
The anti-rotating hole 302 being adapted with the Anti-rotary block 703 is provided on 703 crank discs 3；The Anti-rotary block 703 is fixedly connected
In the anti-rotating hole 302.The cross-sectional shape of the Anti-rotary block 703 can be square, rectangle, triangle etc., also may be used
To be other noncircular cross sections.Anti-rotary block 703 is inserted into anti-rotating hole 302, passes through matching for Anti-rotary block 703 and anti-rotating hole 302
It closes, can prevent fixed block 7 from being rotated relative to the crank disc 3 first；Secondly, Anti-rotary block 703 is fixedly connected with anti-rotating hole 302
Position into connection function is played, be not subject to from thermosensitive bimetal 6 swing when twisting resistance, improve this be fixedly connected it is steady
It is qualitative, enhance the service life of the device.
For the consistency of the original state of diaphragm gas meter for ensureing to produce in enormous quantities, gauging of products performance is made to stablize one
It causes, the upper surface of the crank disc 3 is provided with initial position graduation mark 303；On the crank axle 5 with the initial position scale
303 corresponding position of line is provided with pointer 501.Diaphragm gas meter is when unused, the pointer 501 and the initial position
Graduation mark 303 is aligned, and reviewer is facilitated to test, and ensures the metering performance stable and consistent of all products.
The range that the thermosensitive bimetal 6 is swung out under the condition of high temperature in order to control avoids crank axle 5 after over range
And gas meter, flow meter is caused to fail, preferably, it is additionally provided on the lower surface of the crank disc 3 positioned at the heat-sensitive duplex metal
The limited block in 6 outside of piece.The outside of the thermosensitive bimetal 6 refers to, close to that side of the arc groove 301 opening, leading to
The range that thermosensitive bimetal 6 is swung out can be limited by crossing setting limited block, and it is reliable to ensure that product uses in the case of a high temperature
Property.
Diaphragm gas meter at work, when ambient temperature is changed, then thermosensitive bimetal 6 when the temperature rises to
The outer side oscillation of arc groove 301, the outside of the arc groove 301 refers to being located at that side that arc groove 301 is open, in temperature
To the interior side oscillation of arc groove 301 during reduction, so as to which wobble crank frame 4 be driven to rotate, and then crank axle 5 is driven in arc groove
It is slided in 301, changes crank axle 5 relative to the centre distance and circumferential angle of crank disc 3, i.e., rocking arm is changed by pull rod 10
11 angles swung, and then change the movement travel of epithelium and the opening and closing time of valve when diaphragm gas meter measures,
The namely size of the revolution volume of gas meter, flow meter, makes revolution volume change with temperature change, achievees the purpose that temperature-compensating.
Claims (5)
1. hidden type temperature compensation membrane type gas meter movement including transition gear (1), central gear (2), crank disc (3), is swung
Crank shelf (4), crank axle (5), thermosensitive bimetal (6) and fixed block (7)；It is characterized in that：The central gear (2) is fixed
Mounted on the lower surface of the crank disc (3)；The transition gear (1) is engaged with the central gear (2)；The crank disc
(3) there is hiding space between the transition gear (1)；The thermosensitive bimetal (6) and wobble crank frame (4) are mounted on
In the hiding space；The pivot end of the wobble crank frame (4) is pivotally connected with the crank disc (3)；The wobble crank frame (4)
Movable end be provided with open slot (401)；The open end of the thermosensitive bimetal (6) is stuck on the open slot (401)；Institute
The fixing end for stating thermosensitive bimetal (6) is fixedly connected on by fixed block (7) on the crank disc (3)；The crank disc (3)
On be provided with arc groove (301) using the pivot end of the wobble crank frame (4) as the center of circle；The crank axle (5) is mounted on institute
The movable end of wobble crank frame (4) is stated, the crank axle (5) is slidably matched with the arc groove (301).
2. hidden type temperature compensation membrane type gas meter movement according to claim 1, it is characterised in that：The double gold of the temperature-sensitive
Belong to and be provided with locating slot (601) in the fixing end of piece (6)；The clamping thermosensitive bimetal is provided on the fixed block (7)
(6) groove (701)；The locating piece (702) being adapted with the locating slot (601) is provided in the groove (701).
3. hidden type temperature compensation membrane type gas meter movement according to claim 1 or 2, it is characterised in that：The fixation
The upper end of block (7) be provided be provided on Anti-rotary block (703) crank disc (3) be adapted with the Anti-rotary block (703) it is anti-
Turn hole (302)；The Anti-rotary block (703) is fixedly connected in the anti-rotating hole (302).
4. hidden type temperature compensation membrane type gas meter movement according to claim 1 or 2, it is characterised in that：The crank
The upper surface of disk (3) is provided with initial position graduation mark (303)；On the crank axle (5) with the initial position graduation mark
(303) corresponding position is provided with pointer (501).
5. hidden type temperature compensation membrane type gas meter movement according to claim 1 or 2, it is characterised in that：The crank
The limited block being additionally provided on the lower surface of disk (3) on the outside of the thermosensitive bimetal (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721595041.5U CN207515860U (en) | 2017-11-24 | 2017-11-24 | Hidden type temperature compensation membrane type gas meter movement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721595041.5U CN207515860U (en) | 2017-11-24 | 2017-11-24 | Hidden type temperature compensation membrane type gas meter movement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207515860U true CN207515860U (en) | 2018-06-19 |
Family
ID=62541091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721595041.5U Expired - Fee Related CN207515860U (en) | 2017-11-24 | 2017-11-24 | Hidden type temperature compensation membrane type gas meter movement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207515860U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112325964A (en) * | 2020-10-28 | 2021-02-05 | 上海真兰仪表科技股份有限公司 | Temperature compensation gas meter |
| CN112449830A (en) * | 2020-11-20 | 2021-03-09 | 段绍军 | Water and fertilizer management device capable of reducing precipitation based on Internet of things |
| CN112798067A (en) * | 2019-11-14 | 2021-05-14 | 浙江松川仪表科技股份有限公司 | Mechanical temperature compensation gas meter |
| CN113953800A (en) * | 2021-11-20 | 2022-01-21 | 重庆前卫表业有限公司 | Crank assembly and camshaft assembly method |
-
2017
- 2017-11-24 CN CN201721595041.5U patent/CN207515860U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798067A (en) * | 2019-11-14 | 2021-05-14 | 浙江松川仪表科技股份有限公司 | Mechanical temperature compensation gas meter |
| CN112325964A (en) * | 2020-10-28 | 2021-02-05 | 上海真兰仪表科技股份有限公司 | Temperature compensation gas meter |
| CN112449830A (en) * | 2020-11-20 | 2021-03-09 | 段绍军 | Water and fertilizer management device capable of reducing precipitation based on Internet of things |
| CN113953800A (en) * | 2021-11-20 | 2022-01-21 | 重庆前卫表业有限公司 | Crank assembly and camshaft assembly method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20180619 Termination date: 20191124 |