CN105841768A - Unpowered slide block inverted installing prevention device and inverted installing prevention method for gas meter - Google Patents
Unpowered slide block inverted installing prevention device and inverted installing prevention method for gas meter Download PDFInfo
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- CN105841768A CN105841768A CN201610456910.XA CN201610456910A CN105841768A CN 105841768 A CN105841768 A CN 105841768A CN 201610456910 A CN201610456910 A CN 201610456910A CN 105841768 A CN105841768 A CN 105841768A
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- China
- Prior art keywords
- slide block
- air inlet
- flow meter
- gas
- inversion
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/007—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus comprising means to prevent fraud
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- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses an unpowered slide block inverted installing prevention device for a gas meter. An inverted installing prevention device is connected inside a casing corresponding to a gas inlet of a gas meter body; a gas inlet cavity is arranged inside the inverted installing prevention device; the top of the gas inlet cavity is an antitheft gas inlet; the bottom of the gas inlet cavity is provided with a support block; an inverted installing prevention slide block is arranged on the support block; horizontal gas outlet holes penetrating through the inside and outside of the gas inlet cavity are also formed in the peripheral body of the inverted installing prevention device; the horizontal gas outlet holes are in symmetrical arrangement along the center axial line of the inverted installing prevention device; a vertical gas outlet hole penetrating through the inside and outside of the gas inlet cavity is formed in the position of the support block; the inverted installing prevention slide block is of an approximately conical sphere structure, and comprises an upper part semiellipse sphere structure and a lower part circular arc sphere structure; the horizontal center line of the upper part semiellipse sphere structure is positioned above the horizontal center line of the horizontal gas outlet. After the fuel meter is installed in an inverted way, the gas is prevented from being discharged out from the gas meter; in the use process, the sensitivity is high; the structure is simple; the use is convenient.
Description
Technical field
The present invention relates to a kind of Anti-inversion device and Anti-inversion method, particularly a kind of gas meter, flow meter is with without dynamic
Power slide block Anti-inversion device and Anti-inversion method.
Background technology
Gas meter, flow meter, as a kind of metering outfit, is widely used among our life.Its work is former
Manage substantially combustion gas from air inlet enter after, drive gear mechanism rotate, gear mechanism rotate while carry
Dynamic counting mechanism rotates and realizes metering, and the combustion gas after metering is discharged at gas outlet and made to use up.But should
The gas meter, flow meter of type finds to have a problem that during using, that is, when people's giving vent to anger gas meter, flow meter
When mouth is connected with gas inlet pipe, combustion gas enters into movement from gas outlet, finally discharges quilt from air inlet
Make to use up, whole during gear mechanism will not rotate, the most just cannot realize gage work.Therefore,
There are groups of people to save combustion gas expense, therefore gas meter, flow meter is carried out upside-down mounting, carry out stealing gas work.The behavior is given
Gas company brings substantial amounts of loss, needs for this to improve existing gas meter, flow meter structure, when inciting somebody to action
Gas meter, flow meter upside-down mounting, combustion gas will not be discharged from gas meter, flow meter.Now there is various Anti-inversion on the market at present
Gas meter, flow meter, but these gas meter, flow meters exist problem be: 1, sensitivity is the highest, when air inflow is less
Time, Anti-inversion device is inoperative；2, Anti-inversion apparatus structure is complicated, relatively costly, and mostly is
Electrical control, is easily damaged.
Summary of the invention
It is an object of the invention to, it is provided that a kind of gas meter, flow meter unpowered slide block Anti-inversion device and anti-down
Dress method.It is possible to prevent combustion gas to discharge in gas meter, flow meter after this gas meter, flow meter upside-down mounting, sensitivity during use
Higher, and simple in construction, easy to use, cost is relatively low, it is not easy to damage.
Technical scheme: a kind of gas meter, flow meter unpowered slide block Anti-inversion device, gas meter, flow meter body
Enclosure interior corresponding to air inlet connect and have Anti-inversion device, described Anti-inversion device to be internally provided with 1
Individual air inlet cavity, air inlet cavity top is antitheft air inlet, and air inlet cavity bottom is provided with a bracer,
Being provided with Anti-inversion slide block on bracer, Anti-inversion is additionally provided with through inlet chamber inside and outside with device week
Horizontal venthole, horizontal venthole is symmetrical arranged along the central axis of Anti-inversion device, arranges at a bracer
There is the vertical venthole of through inlet chamber inside and outside；Described Anti-inversion slide block is class circular cone sphere structure, its
Include top semiellipse sphere structure and bottom circular arc sphere structure, its middle and upper part semiellipse sphere structure
Horizontal center line be positioned at the top of horizontal center line of horizontal venthole.
Aforesaid gas meter, flow meter with unpowered slide block Anti-inversion device, described top semiellipse sphere structure short
Shaft diameter is the 17/21～18/21 of air inlet housing width, and air inlet housing width deducts top semiellipse spheroid
The minor axis diameter of structure is more than or equal to 3mm, less than or equal to 6mm.
Aforesaid gas meter, flow meter with unpowered slide block Anti-inversion device, described top semiellipse sphere structure short
Shaft diameter 17～18mm.
Aforesaid gas meter, flow meter unpowered slide block Anti-inversion device, the length of described top semiellipse sphere structure
Shaft diameter is 34～38mm.
Aforesaid gas meter, flow meter unpowered slide block Anti-inversion device, the radius of described bottom circular arc sphere structure
Being 21.25～27.75mm, its angle is 37.85 degree～50.1 degree.
Aforesaid gas meter, flow meter is 2mm～3mm with unpowered slide block Anti-inversion device, described support tile height.
Aforesaid gas meter, flow meter is cone knot with unpowered slide block Anti-inversion device, described air inlet cavity top
Structure.
Aforesaid gas meter, flow meter unpowered slide block Anti-inversion device, the water of described top semiellipse sphere structure
Flat centrage is positioned at the 1mm position, top of the horizontal center line of horizontal venthole, the width of horizontal venthole
Degree is 3mm.
A kind of gas meter, flow meter Anti-inversion method, connects at the inner housing air inlet of gas meter, flow meter and has Anti-inversion to fill
Putting, when gas meter, flow meter upside-down mounting, combustion gas enters from the air vent of gas meter, flow meter, through vertically going out of Anti-inversion device
Pore and horizontal venthole enter in air inlet cavity, and the airflow passes Anti-inversion that horizontal venthole enters is sliding
Produce suction function during block surface, under bottom airflow acts on jointly, Anti-inversion slide block be lifted up,
The head end of Anti-inversion slide block blocks antitheft air inlet, and combustion gas cannot be outside gas meter, flow meter be discharged by antitheft air inlet.
Beneficial effects of the present invention: compared with prior art, the present invention is by being arranged on Anti-inversion device
In the inlet chamber body of gas meter, flow meter, and the structure and installation site to Anti-inversion slide block is defined, from
And make when reverse air inlet, and during gas enters into air inlet cavity from horizontal venthole, airflow passes
During Anti-inversion slide block, air-flow border can produce suction function, under the common effect of bottom airflow, and Anti-inversion
Slide block progressively moves up, until finally blocking antitheft air inlet, thus avoids when gas meter, flow meter is by upside-down mounting,
Combustion gas is discharged in gas meter, flow meter.The Anti-inversion apparatus structure of the present invention is simple, and antitheft work relies on combustion gas
Airflow function can realize, it is not necessary to electric power assist control, and whole Anti-inversion installation cost is only gas meter, flow meter
The 15% of cost, does not increase substantially the cost of gas meter, flow meter, reduces the burden of user.By by us
A, B, C that products and marketing is now sold tri-the anti-down gas meter, flow meter of type carry out contrast and find, the test from table 1
Data understand, and our gas meter, flow meter persistently uses more than 5000 hours and do not haves fault, and work as
When admission pressure is 5kpa, Anti-inversion device i.e. starts effect, and sensitivity is higher, and market price
Will be much lower than other product.
Table 1, all types of gas meter, flow meter contrast tests
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the present invention；
Accompanying drawing 2 is the sectional structure schematic diagram of accompanying drawing 1；
Reference: 1-gas meter, flow meter body, 2-air inlet, 3-Anti-inversion device, 4-air inlet cavity, 5-
Antitheft air inlet, 6-props up bracer, 7-Anti-inversion slide block, 71-top semiellipse sphere structure, 72-bottom
Circular arc sphere structure, the horizontal venthole of 8-, the vertical venthole of 9-.
Detailed description of the invention
The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings, but is not intended as the present invention
The foundation limited.
Embodiments of the invention: a kind of gas meter, flow meter is with unpowered slide block Anti-inversion device, such as accompanying drawing 1-2 institute
Showing, include gas meter, flow meter body 1, the enclosure interior of air inlet 2 correspondence of gas meter, flow meter body 1 connects to be had
Anti-inversion device 3, described Anti-inversion device 3 is internally provided with 1 air inlet cavity 4, air inlet cavity 4
Top is antitheft air inlet 5, is provided with a bracer 6 bottom air inlet cavity 4, and a bracer 6 is provided with
Anti-inversion slide block 7, the level that Anti-inversion device is additionally provided with 3 weeks inside and outside through air inlet cavity 4 goes out
Pore 8, horizontal venthole 8 is symmetrical arranged along the central axis of Anti-inversion device 3, sets at a bracer 6
It is equipped with the vertical venthole 9 inside and outside through air inlet cavity 4；Described Anti-inversion slide block 7 is class circular cone spheroid
Structure, it includes top semiellipse sphere structure 71 and bottom circular arc sphere structure 72, its middle and upper part
The horizontal center line of semiellipse sphere structure 71 is positioned at the top of the horizontal center line of horizontal venthole 8.
The Anti-inversion method of the gas meter, flow meter of the present invention is, when its air inlet 2 of gas meter, flow meter body 1 of the present invention
When being connected with gas inlet pipeline, this gas meter, flow meter is positive assembling structure, combustion gas from air inlet 2 through antitheft enter
QI KOU 5 enters in air inlet cavity 4, then gives vent to anger from level and discharges at empty 8 and vertical venthole 9,
Combustion gas enters into inside gas meter, flow meter, finally discharges at the gas outlet of gas meter, flow meter.Gas meter, flow meter as the present invention
When its gas outlet of body 1 is connected with gas inlet pipeline, this gas meter, flow meter is inverted structure, now combustion gas from
Gas inlet pipeline enters into inside gas meter, flow meter by gas outlet, the most again from vertical venthole 9 and level
Venthole 8 enters in air inlet cavity 4, and the air-flow entered from horizontal venthole 8 is to flow through top half ellipse
During the surface of spherosome structure 71, form suction function in its region, surface, in the negative pressure of multiple symmetries
Under effect, and the airflow function entered at vertical venthole 9, Anti-inversion slide block 7 can the most upwards
Rising, the head end of final top semiellipse sphere structure 71 snaps at antitheft air inlet 5, thus avoids
Combustion gas is discharged at antitheft air inlet 5, finally realizes the purpose of Anti-inversion.In order to form suction function,
Therefore Anti-inversion slide block 7 is set to class circular cone sphere structure.It includes top semiellipse sphere structure 71
With bottom circular arc sphere structure 72, the horizontal center line of its middle and upper part semiellipse sphere structure 71 is positioned at water
Clear the top of horizontal center line of pore 8, by the knot of the Anti-inversion slide block 7 that such setting obtains
Structure, after air-flow enters at horizontal venthole 8, just can form negative pressure in its surface.And in order to ensure
Air-flow enters air inlet cavity 4 from horizontal venthole 8 and can or can not be blowed to additionally from side by Anti-inversion slide block 7
Side, thus should ensure that horizontal venthole 8 on Anti-inversion device 3 for being symmetrical arranged.
Described top semiellipse sphere structure 71 minor axis diameter is air inlet cavity 4 width 17/21～
18/21, air inlet cavity 4 width deducts the minor axis diameter of top semiellipse sphere structure 71 and is more than or equal to
3mm, less than or equal to 6mm.By this dimension limitation, thus the knot to top semiellipse sphere structure 71
Structure is defined, and this restriction is so that the suction function effectiveness comparison that produces of air-flow is obvious, thus more
Add the rising contributing to Anti-inversion slide block 7.Anti-inversion slide block 7 is made for lightweight cork or hollow plastics,
Rising after facilitating its stress, cork or plastics more step up with antitheft contacting of air inlet 5 at pressurized simultaneously
Close, thus ensure combustion gas will not at gap between the two outside leak.
The minor axis diameter 17～18mm of described top semiellipse sphere structure 71, described top semiellipse ball
The major diameter of body structure 71 is 34～38mm, and the radius of described bottom circular arc sphere structure 72 is
21.25mmm～27.75mm, its angle is 37.85 degree～50.1 degree.By this dimension limitation, thus
The structure of top semiellipse sphere structure 71 has been carried out further restriction, and this restriction is so that gas
The suction function effect of miscarriage life becomes apparent from, thus more contributes to the rising of Anti-inversion slide block 7.
The major diameter of described top semiellipse sphere structure 71 is 36mm, and described bottom circular arc spheroid is tied
The radius of structure 72 is 21.25mm, and its angle is 50.1 degree, described top semiellipse sphere structure 71
Minor axis diameter be 18mm, the width of air inlet cavity 4 is 21mm, top semiellipse sphere structure 71
Horizontal center line is positioned at the 1mm position, top of the horizontal center line of horizontal venthole 8, horizontal venthole
The width of 8 is 3mm, when being limited the size of all parts of Anti-inversion device 3 by above numerical value
Regularly, the vacuum effect that the Anti-inversion device 3 obtained produces is the most notable.
Described bracer 6 height is 2mm～3mm, and this bracer 6 diameter is only about 3mm, by setting
Putting this bracer 6 can avoid the bottom surface of Anti-inversion slide block 7 directly to contact with the surface of vertical venthole 9,
Reduce the area of vertical venthole 9, it is to avoid reduce into and out of tolerance.
Described air inlet cavity 4 top is cone structure, this pyramidal structure and top semiellipse sphere structure 71
Head end structure the most identical so that under suction function, Anti-inversion slide block 7 is final and inlet chamber
Body 4 realizes seamless contact, it is to avoid gas leakage.
Claims (10)
1. a gas meter, flow meter is with unpowered slide block Anti-inversion device, it is characterized in that: the enclosure interior that the air inlet (2) of gas meter, flow meter body (1) is corresponding connects Anti-inversion device (3), described Anti-inversion device (3) is internally provided with 1 air inlet cavity (4), air inlet cavity (4) top is antitheft air inlet (5), air inlet cavity (4) bottom is provided with a bracer (6), prop up and be provided with Anti-inversion slide block (7) on bracer (6), Anti-inversion device is additionally provided with the horizontal venthole (8) inside and outside through air inlet cavity (4) with (3) week, horizontal venthole (8) is symmetrical arranged along the central axis of Anti-inversion device (3), prop up bracer (6) place and be provided with the vertical venthole (9) inside and outside through air inlet cavity (4)；Described Anti-inversion slide block (7) is class circular cone sphere structure, it includes top semiellipse sphere structure (71) and bottom circular arc sphere structure (72), and the horizontal center line of its middle and upper part semiellipse sphere structure (71) is positioned at the top of the horizontal center line of horizontal venthole (8).
Gas meter, flow meter the most according to claim 1 is with unpowered slide block Anti-inversion device, it is characterized in that: minor axis diameter is air inlet cavity (4) width the 17/21～18/21 of described top semiellipse sphere structure (71), air inlet cavity (4) width deducts the minor axis diameter on top semiellipse sphere structure (71) and is more than or equal to 3mm, less than or equal to 6mm.
Gas meter, flow meter the most according to claim 2 is with unpowered slide block Anti-inversion device, it is characterised in that: the minor axis diameter 17～18mm of described top semiellipse sphere structure (71).
Gas meter, flow meter the most according to claim 1 is with unpowered slide block Anti-inversion device, it is characterised in that: the major diameter of described top semiellipse sphere structure (71) is 34～38mm.
Gas meter, flow meter the most according to claim 1 is with unpowered slide block Anti-inversion device, it is characterised in that: the radius of described bottom circular arc sphere structure (72) is 21.25～27.75mm, and its angle is 37.85 degree～50.1 degree.
Gas meter, flow meter the most according to claim 6 is with unpowered slide block Anti-inversion device, it is characterised in that: the radius of described bottom circular arc sphere structure (72) is 21.25mm, and its angle is 50.1 degree.
Gas meter, flow meter the most according to claim 1 is with unpowered slide block Anti-inversion device, it is characterised in that: described bracer (6) height is 2mm～3mm.
Gas meter, flow meter the most according to claim 1 is with unpowered slide block Anti-inversion device, it is characterised in that: described air inlet cavity (4) top is cone structure.
Gas meter, flow meter the most according to claim 1 is with unpowered slide block Anti-inversion device, it is characterized in that: the horizontal center line of described top semiellipse sphere structure (71) is positioned at the 1mm position, top of the horizontal center line of horizontal venthole (8), the width of horizontal venthole (8) is 3mm.
10. the gas meter, flow meter Anti-inversion method as described in any one in claim 1-8, it is characterized in that: connecting at the inner housing air inlet of gas meter, flow meter has Anti-inversion device, when gas meter, flow meter upside-down mounting, combustion gas enters from the air vent of gas meter, flow meter, enter in air inlet cavity through vertical venthole and the horizontal venthole of Anti-inversion device, suction function is produced during the airflow passes Anti-inversion shoe surface that horizontal venthole enters, under bottom airflow acts on jointly, Anti-inversion slide block is lifted up, the head end of Anti-inversion slide block blocks antitheft air inlet, combustion gas cannot be outside gas meter, flow meter be discharged by antitheft air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610456910.XA CN105841768B (en) | 2016-06-22 | 2016-06-22 | Unpowered sliding block anti-inversion device for gas meter and anti-inversion method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610456910.XA CN105841768B (en) | 2016-06-22 | 2016-06-22 | Unpowered sliding block anti-inversion device for gas meter and anti-inversion method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105841768A true CN105841768A (en) | 2016-08-10 |
| CN105841768B CN105841768B (en) | 2022-04-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610456910.XA Active CN105841768B (en) | 2016-06-22 | 2016-06-22 | Unpowered sliding block anti-inversion device for gas meter and anti-inversion method |
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| CN105424120A (en) * | 2015-11-11 | 2016-03-23 | 四川鹏翔电子科技有限责任公司 | Gas meter capable of automatically cutting off water inflow |
| CN205785388U (en) * | 2016-06-22 | 2016-12-07 | 贵州天益仪表科技有限公司 | Gas meter, flow meter is with unpowered slide block Anti-inversion device |
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2016
- 2016-06-22 CN CN201610456910.XA patent/CN105841768B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201007670Y (en) * | 2007-03-01 | 2008-01-16 | 李伦章 | Gas meter anti-gas stolen and anti-inverse water protective equipment |
| CN101038195A (en) * | 2007-04-09 | 2007-09-19 | 段海 | Electromechanical integrated gas meter anti-disassembling device |
| CN101556175A (en) * | 2008-04-08 | 2009-10-14 | 隋明祥 | Anti-disassembly, anti-reversion, anti-pulsation, antirust and antidrip energy-saving water meter |
| CN201837424U (en) * | 2010-07-12 | 2011-05-18 | 苗华利 | Anti-theft gas and anti-counterflow gas meter device |
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| CN104751570A (en) * | 2015-03-31 | 2015-07-01 | 成都秦川科技发展有限公司 | IC intelligent mass and flow fuel gas meter and management system thereof |
| CN204831388U (en) * | 2015-06-04 | 2015-12-02 | 江西百川水表有限公司 | High -sensitive watermeter |
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| CN105841768B (en) | 2022-04-15 |
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Effective date of registration: 20170516 Address after: Choi Wan Road Industrial Zone, Xia Xia Yun Yun Zhen Pingba District 561104 Guizhou city of Anshun Province Applicant after: GUIZHOU TIANYI INSTRUMENT TECHNOLOGY CO., LTD. Applicant after: GUIYANG VOCATIONAL AND TECHNICAL COLLEGE Address before: Choi Wan Road Industrial Zone, Xia Xia Yun Yun Zhen Pingba District 561104 Guizhou city of Anshun Province Applicant before: GUIZHOU TIANYI INSTRUMENT TECHNOLOGY CO., LTD. Applicant before: Zhang Fang Applicant before: Ma Yangyang |
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