CN203024818U - Upper meter shell assembly of a gas meter - Google Patents
Upper meter shell assembly of a gas meter Download PDFInfo
- Publication number
- CN203024818U CN203024818U CN 201220635604 CN201220635604U CN203024818U CN 203024818 U CN203024818 U CN 203024818U CN 201220635604 CN201220635604 CN 201220635604 CN 201220635604 U CN201220635604 U CN 201220635604U CN 203024818 U CN203024818 U CN 203024818U
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- CN
- China
- Prior art keywords
- air outlet
- cavity
- hollow
- watchcase
- joint
- Prior art date
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to an upper meter shell assembly of a gas meter. The upper meter shell assembly of the gas meter comprises an upper meter shell, an air inlet pipe connector, an air outlet pipe connector, an air outlet conduit and a sealing ring sleeved on the air outlet conduit. The upper meter shell assembly of the gas meter is characterized in that a hollow air inlet cavity and a hollow air outlet cavity are drawn on the upper meter shell from inside to outside, an air inlet hole and an air outlet hole are correspondingly punched in the bottom wall of the air inlet cavity and the air outlet cavity, the radial connection face of the air outlet pipe connector is connected with a circular seam of the outer radial face of the bottom wall of the air outlet cavity in a projection welding mode, and the air outlet conduit is arranged in a hollow cavity of the air outlet cavity through the sealing ring. The upper meter shell assembly of the gas meter is simple in manufacturing process, short in manufacturing period and low in cost, the speed of circular seam projection welding connection between the air inlet pipe connector and the air inlet cavity bottom wall and the speed of circular seam projection welding connection between the air outlet pipe connector and the air outlet cavity bottom wall is high, and time and labor are saved.
Description
Technical field
The utility model relates to a kind of parts or annex of surveying instrument of flow, watchcase assembly on especially a kind of gas meter, flow meter.
Background technology
We know, gas meter, flow meter is to flow through the flow measurement instrument of the long-pending total amount of pipeline combustion gases in order to accumulative total.And upper watchcase assembly is the important composition parts of gas meter, flow meter, and it mainly comprises watchcase and be fixedly connected the draft tube joint on upper watchcase, the outtake tube that an escape pipe joint and is communicated with the escape pipe joint on one.During use, the membrane type measuring room air intake opening of fuel gas pipeline within the draft tube joint is communicated with watchcase, membrane type measuring room gas outlet is communicated with burner through outtake tube, escape pipe joint.The existing upper watchcase assembly of the applicant is to connect by following expression: carry out hole flanging behind punching inlet, outlet hole on upper watchcase again; Connect seam in the inlet, outlet pipe adapter outside surface system of getting on the bus, connect the chamber in the escape pipe joint inside surface system of getting on the bus; To correspondingly into and out of the setting edge after the pore hole flanging weld with the seam employing manual argon arc welding that connects of inlet, outlet pipe adapter, be assemblied in after outtake tube overcoat one O-ring seal in the connection chamber of escape pipe joint.On existing in the watchcase assembly, its setting edge into and out of pore is thinner, with exist the deficiency that speed of welding is slow, waste time and energy connecting of inlet, outlet pipe adapter when seam welds mutually; In addition, want car system to connect seam on the draft tube joint in parts, want car system connect seam and connect the chamber on the escape pipe joint, its manufacturing cycle is long, manufacturing cost is high.
Summary of the invention
For overcome in prior art welding with the inlet, outlet pipe adapter exist speed slow, waste time and energy and the parts manufacturing cycle is long, cost is high deficiency, the utility model provides watchcase assembly on the fast gas meter, flow meter of the speed of welding between a kind of parts low cost of manufacture, parts.
The technical scheme that its technical matters that solves the utility model adopts is: watchcase assembly on a kind of gas meter, flow meter, the O-ring seal that it comprises on the outtake tube of watchcase on, a draft tube joint, an escape pipe joint, an outtake tube and a suit is characterized in that: the predeterminated position of watchcase hollow inlet chamber and the hollow outlet chamber of pull and stretch one respectively from the inside to the outside on described; Corresponding stamping-out one air admission hole of difference, a venthole on the diapire of described inlet chamber, outlet chamber; Between the radially joint face of described draft tube joint and the outer radial surface of the diapire of inlet chamber, the circumferential weld projection welding connects; Between the radially joint face of described escape pipe joint and the outer radial surface of the diapire of outlet chamber, the circumferential weld projection welding connects; Described outtake tube is assemblied in the hollow cavity of described outlet chamber through described O-ring seal sealing.
The utility model due to the predeterminated position of upper watchcase from the inside to the outside respectively pull and stretch hollow inlet chamber, outlet chamber are arranged, corresponding stamping-out has air admission hole, venthole respectively on the diapire of the chamber of inlet chamber, outlet chamber, airway is assemblied in the hollow cavity of outlet chamber through the O-ring seal sealing, the inlet chamber of pull and stretch on watchcase on it, outlet chamber can with upper watchcase once-forming, its stamping-out air admission hole, venthole technique are simple, have advantages of short, low cost of manufacture of manufacturing cycle.The radially joint face of draft tube joint of the present utility model connects with the outer radial surface difference circumferential weld projection welding of outlet chamber diapire with the radially joint face of the outer radial surface of inlet chamber diapire, escape pipe joint, the circumferential weld projection welding is to be completed by circular seam automatic welding machine, its speed of welding is fast, and have advantages of that face of weld is smooth, good airproof performance, weld strength be high.
Description of drawings
Below in conjunction with drawings and Examples, the utility model is described further.
Fig. 1 is a kind of structural front view of the present utility model.
In figure: 1. go up watchcase, 2. outtake tube, 3. outlet chamber, 4. O-ring seal, 5. venthole, 6. escape pipe joint, 7. inlet chamber, 8. air admission hole, 9. draft tube joint.
Embodiment
In Fig. 1, watchcase assembly on a kind of gas meter, flow meter, it comprises watchcase 1 on, a draft tube joint 9, an escape pipe joint 6, an outtake tube 2.Be set with an O RunddichtringO 4 on outtake tube.
As shown in Figure 1, the predeterminated position on upper watchcase 1 is distinguished hollow inlet chamber 7 and the hollow outlet chamber 3 of pull and stretch one from the inside to the outside.The drawing and forming of inlet chamber 7, outlet chamber 3 can with upper watchcase disposable the completing that be shaped.
Stamping-out one air admission hole 8 on the diapire of inlet chamber 7.
Stamping-out one venthole 5 on the diapire of outlet chamber 3.
In Fig. 1, adopt circular seam automatic welding machine to carry out the circumferential weld projection welding between the radially joint face of draft tube joint 9 and the outer radial surface of the diapire of inlet chamber 7 and connect.
Adopting circular seam automatic welding machine to carry out the circumferential weld projection welding between the radially joint face of escape pipe joint 6 and the outer radial surface of the diapire of outlet chamber 3 connects.
As shown in Figure 1, described outtake tube 2 is assemblied in the hollow cavity of outlet chamber 3 through O-ring seal 4 sealings.
Technique of the present utility model is simple, and the manufacturing cycle is short, low cost of manufacture.Be to adopt circular seam automatic welding machine to carry out the circumferential weld projection welding and connect between draft tube joint and inlet chamber diapire, escape pipe joint and outlet chamber diapire, speed of welding is fast, and is time saving and energy saving, and its face of weld is smooth, good airproof performance, weld strength are high.
Claims (1)
1. watchcase assembly on a gas meter, flow meter, the O-ring seal that it comprises on the outtake tube of watchcase on, a draft tube joint, an escape pipe joint, an outtake tube and a suit is characterized in that: the predeterminated position of watchcase hollow inlet chamber and the hollow outlet chamber of pull and stretch one respectively from the inside to the outside on described; Corresponding stamping-out one air admission hole of difference, a venthole on the diapire of described inlet chamber, outlet chamber; Between the radially joint face of described draft tube joint and the outer radial surface of the diapire of inlet chamber, the circumferential weld projection welding connects; Between the radially joint face of described escape pipe joint and the outer radial surface of the diapire of outlet chamber, the circumferential weld projection welding connects; Described outtake tube is assemblied in the hollow cavity of described outlet chamber through described O-ring seal sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220635604 CN203024818U (en) | 2012-11-28 | 2012-11-28 | Upper meter shell assembly of a gas meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220635604 CN203024818U (en) | 2012-11-28 | 2012-11-28 | Upper meter shell assembly of a gas meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203024818U true CN203024818U (en) | 2013-06-26 |
Family
ID=48648797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220635604 Expired - Lifetime CN203024818U (en) | 2012-11-28 | 2012-11-28 | Upper meter shell assembly of a gas meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203024818U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017849A (en) * | 2012-11-28 | 2013-04-03 | 荣成市宇翔实业有限公司 | Upper meter casing component of gas meter |
-
2012
- 2012-11-28 CN CN 201220635604 patent/CN203024818U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017849A (en) * | 2012-11-28 | 2013-04-03 | 荣成市宇翔实业有限公司 | Upper meter casing component of gas meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130626 |