CN2935100Y - One-way ventilation gas meter - Google Patents
One-way ventilation gas meter Download PDFInfo
- Publication number
- CN2935100Y CN2935100Y CN 200620123872 CN200620123872U CN2935100Y CN 2935100 Y CN2935100 Y CN 2935100Y CN 200620123872 CN200620123872 CN 200620123872 CN 200620123872 U CN200620123872 U CN 200620123872U CN 2935100 Y CN2935100 Y CN 2935100Y
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- gas meter
- meter
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- valve gap
- gas
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Abstract
The utility model relates to a single-way aerating gas meter. Based on traditional gas meter, a set of reverse-stop device is re-designed, and the top end face of the valve cap is arranged with a tendon to form a new valve. The reverse-stop bracket is positioned on the top of the new valve and fixed in measuring room. One end of locking plate is sheathed on the fixed axis of the reverse-stop bracket, and the other end is dropped on the top end face of the new valve. The locking plate of the new device directly acts on the valve cap, which not only can prevent reverse turning of the valve cap and countering of the meter, but also can press the valve cap and ensure the counterblast not to pass through and make the gas meter have the functions that when reverse hanged the meter does not count and aerate. The utility model effectively solves the defects that traditional gas meter aerates while being reservedly hanged. The improved gas meter does not increase pressure loss. The proposal has the advantages of simple production, low cost and long service life.
Description
(1) technical field:
The utility model relates to a kind of gas meter, flow meter that is used for the metering gas volumetric flow rate, especially a kind of gas meter, flow meter of unidirectional ventilation.
(2) background technology:
Gas meter, flow meter is a kind of instrument of measuring volumetric flow of gas, its principle of work is to utilize the pressure reduction in the gas flow process to be power, gas is introduced the certain measuring room of volume 2, in the measuring room 2 gases to enter and discharge be that reciprocal interlock by valve gap 7 rotations and measuring room 2 interior epitheliums is used for controlling.Valve gap and valve seat composition surface 8 are through attrition process, and its flatness precision is very high, when they closely fit together, can guarantee that no gas leaks between valve gap 7 and valve seat 6 composition surfaces.The 7 rotation whiles of valve gap, driving lever gear 5 drives the off-balancesheet rolling counters forwards, thereby realizes the purpose of metering gas flow.
Tradition gas meter, flow meter primary structure is seen Fig. 1: respectively one of inlet attack 1 and outlet connection 10 is arranged, interior dress measuring room 2 on the watchcase 12.Support 3, valve seat 6, escape pipe 9 and valve shaft 13 are separately fixed on the measuring room 2.Check plate 4 and driving lever gear 5 are contained on the support 3, and valve gap 7 is contained on valve seat 6 and the valve shaft 13, and valve gap 7 can rotate around valve shaft 13 on valve seat 6.Escape pipe 9 is inserted in the outlet connection 10, is added with 11 sealings of escape pipe cushion rubber between them.
The tradition gas meter, flow meter is done the non-return device (see figure 1) of table with driving lever gear 5 and check plate 4, and its course of work is:
1. when the gas meter, flow meter forward is ventilated, gas enters in the watchcase 12 from inlet attack 1, promote the running of gas meter, flow meter forward, valve gap 7 is subjected to downward pressure, and abut against with valve seat 6, valve gap and valve seat composition surface 8 are very close to each other, and driving lever gear 5 clockwise rotates and drives the off-balancesheet rolling counters forward, check plate 4 is swung on driving lever gear 5 and is slipped over, and gas meter, flow meter can normally measure and ventilate.
2. when gas meter, flow meter is oppositely ventilated, gas from outlet connection 10 in escape pipe 9 enters measuring room 2, promote the gas meter, flow meter antiport, driving lever gear 5 rotates counterclockwise, when the eccentric breach on the driving lever gear 5 was pressed on the check plate 4, driving lever gear 5 can not be rotated further and drive the off-balancesheet rolling counters forward.But valve gap 7 is subjected to the pressure of reversed flow gas and is come by jack-up at this moment, pass through the gap that gas still can form between valve gap and valve seat composition surface 8, Here it is oppositely during the pocket watch ventilation, and gas meter, flow meter can be accomplished not count, but can not accomplish the reason of flow of QI being obstructed (can continue to use gas).Thereby be the sub-fraction user, adopt the mode of forward and reverse by turns pocket watch, usurp combustion gas and pay dues less chance is provided.
For overcoming above-mentioned defective, the patent No.: ZL 01256914.3 is to have installed a cover check valve apparatus in traditional gas meter, flow meter escape pipe 9 additional, can solve the gas meter, flow meter defective of oppositely ventilating.But this scheme also can cause other problem, and promptly because retaining valve is to be contained in the gas passage, one is the area that will reduce gas passage as a result; The 2nd, the gas forward by the time jack-up check valve body that must make progress.Two pressure losses that all will increase gas meter, flow meter can influence the user and use gas when the gas supply insufficient pressure.
(3) summary of the invention:
The purpose of this utility model is to overcome above-mentioned deficiency, but a kind of only forward of design ventilation metering, the reverse gas meter, flow meter that can not ventilate, and the pressure loss when not increasing fuel gas flow in the table.
The primary structure of the unidirectional ventilation gas meter, flow meter of the utility model is made up of watchcase 12, measuring room 2, valve seat 6, valve gap 15, check support 14, check plate 4 and counting assembly etc., it is characterized in that: check support 14 is arranged on the top of valve gap 15, and be fixed on the measuring room 2, one end of check plate 4 is sleeved on the stationary shaft on the check support 14, the other end of check plate 4 hangs in the upper surface of valve gap 15, is provided with together valve gap muscle 16 radially in the upper surface of valve gap 15.
The utility model adopts the advantage of redesign non-return device mode to be: under the situation that does not reduce the original performance of gas meter, flow meter, efficiently solve the defective of ventilation when traditional gas meter, flow meter is counter to be hung.This scheme production and processing is simple, and cost is low, long service life.
(4) description of drawings:
Fig. 1 is traditional gas meter, flow meter work structuring principle schematic;
Fig. 2 is the utility model gas meter, flow meter structural representation;
Work structuring synoptic diagram when Fig. 3 is the ventilation of the utility model gas meter, flow meter non-return device forward;
Work structuring synoptic diagram when Fig. 4 oppositely ventilates for the utility model gas meter, flow meter non-return device.
Sequence number explanation among the figure:
1 inlet attack, 2 measuring rooms, 3 supports, 4 check plates, 5 driving lever gears, 6 valve seats, 7 former valve gaps, 8 valve gaps and valve seat composition surface, 9 escape pipes, 10 outlet connections, 11 escape pipe cushion rubbers, 12 watchcases, 13 valve shafts, 14 check supports, 15 new valve gaps, 16 valve gap muscle.
(5) embodiment:
Below in conjunction with description, provide the invention details of the unidirectional ventilation gas meter, flow meter of the utility model to drawings and embodiments.The utility model gas meter, flow meter as shown in Figure 2 is on the basis of traditional gas meter, flow meter (Fig. 1), and design has increased by a cover non-return device, and its concrete structure is: 1. increase by 14 1 on check support, be fixed on the measuring room 2 with screw.2. check plate 4 is moved on on the check support 14 from original support 3, check plate 4 one ends are sleeved on the stationary shaft of check support 14, and can in certain angle, swing, the other end freely hangs and (sees Fig. 3, Fig. 4) in the upper surface of valve gap 15, check plate 4 is subjected to the constraint of check support 14, almost horizontal level can be put during counter-clockwise swing, the upright position can only be put when swinging clockwise.3. increase by one valve gap muscle 16 on former valve gap 7, constitute new valve gap 15 (seeing Fig. 3, Fig. 4), its effect is: when valve gap 15 forward rotation, check plate 4 can be swung on muscle 16 and slip over, and does not influence valve gap 15 and rotates; When valve gap 15 backward rotation, the muscle 16 of valve gap 15 will withstand on the check plate 4, and the muscle 16 on the valve gap 15 is being with check plate 4 to clockwise rotate, when check plate 4 forwards the upright position to, the constraint that is subjected to check support 14 is just or else active, thereby valve gap 15 can not be rotated further.
The course of work of the utility model gas meter, flow meter non-return device:
1. as shown in Figure 3: gas meter, flow meter is just hung and when ventilating, identical with traditional gas meter, flow meter, gas enters in the watchcase 12 from inlet attack 1, promote the running of gas meter, flow meter forward, valve gap 15 forward rotation (shown in Fig. 3 vertical view: valve gap 15 clockwise rotates), check plate 4 slides on novel valve gap 15 as shown and does not influence valve gap 15 rotations, can not increase the gas meter, flow meter pressure loss.(see figure 2) driving lever gear 5 drives the off-balancesheet rolling counters forward simultaneously, and gas meter, flow meter can normal ventilation running and metering.Interior mechanical transmission mechanism of original table and passage all do not have to change when improving back gas meter, flow meter forward ventilation, can not increase the pressure loss of gas meter, flow meter.
2. as shown in Figure 4: gas meter, flow meter is counter to be hung and when ventilating, identical with traditional gas meter, flow meter, gas from outlet connection 10 in escape pipe 9 enters measuring room 2, promote the gas meter, flow meter antiport, valve gap 15 backward rotation (shown in Fig. 4 vertical view: valve gap 15 rotates counterclockwise), check plate 4 can drop to by deadweight the muscle 16 that increases on the novel valve gap 15 below, check plate 4 clockwise rotates the upright position stand, block muscle 16 and valve gap 15 can not be rotated further, gas meter, flow meter shuts down and ventilates and counting.Check plate 4 can be pushed down valve gap 15 simultaneously, and it is close on the valve seat 6, can not allow reverse air pressure that valve gap 15 is pushed up from valve seat 6, thereby guarantee that gas can not pass through between valve gap and valve seat composition surface 8, and promptly gas can not pass through gas meter, flow meter.(see figure 2) driving lever gear 5 also stops operating simultaneously, can not continue to drive the rolling counters forward metering.
So the gas meter, flow meter after improving has dual-use function simultaneously: during the forward pocket watch, gas meter, flow meter can normal ventilation turn round and metering, and does not increase the pressure loss of gas meter, flow meter; Oppositely during pocket watch, gas meter, flow meter can not be counted metering, can not ventilate.Thereby reached the purpose of the present utility model.
Claims (2)
1. unidirectional ventilation gas meter, flow meter of the present utility model mainly is made up of watchcase (12), measuring room (2), valve seat (6), valve gap (15), check support (14), check plate (4) and counting assembly etc., it is characterized in that: check support (14) is set at the top of valve gap (15), and be fixed on the measuring room (2), one end of check plate (4) is sleeved on the stationary shaft on the check support (14), and the other end of check plate (4) hangs in the upper surface of valve gap (15).
2. according to claims 1 described unidirectional ventilation gas meter, flow meter of the present utility model, it is characterized in that: be provided with together valve gap muscle (16) radially in the upper surface of valve gap (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620123872 CN2935100Y (en) | 2006-07-18 | 2006-07-18 | One-way ventilation gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620123872 CN2935100Y (en) | 2006-07-18 | 2006-07-18 | One-way ventilation gas meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2935100Y true CN2935100Y (en) | 2007-08-15 |
Family
ID=38351789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620123872 Expired - Fee Related CN2935100Y (en) | 2006-07-18 | 2006-07-18 | One-way ventilation gas meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2935100Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101126652B (en) * | 2007-09-29 | 2011-03-30 | 重庆前卫仪表厂 | Electronic gas meter for mass and flow |
| CN113686404A (en) * | 2021-07-13 | 2021-11-23 | 陕西航天动力高科技股份有限公司 | Diaphragm gas meter with non-return device |
-
2006
- 2006-07-18 CN CN 200620123872 patent/CN2935100Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101126652B (en) * | 2007-09-29 | 2011-03-30 | 重庆前卫仪表厂 | Electronic gas meter for mass and flow |
| CN113686404A (en) * | 2021-07-13 | 2021-11-23 | 陕西航天动力高科技股份有限公司 | Diaphragm gas meter with non-return device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070815 Termination date: 20140718 |
|
| EXPY | Termination of patent right or utility model |