CN205483141U - Last watchcase subassembly of gas table - Google Patents
Last watchcase subassembly of gas table Download PDFInfo
- Publication number
- CN205483141U CN205483141U CN201620236839.XU CN201620236839U CN205483141U CN 205483141 U CN205483141 U CN 205483141U CN 201620236839 U CN201620236839 U CN 201620236839U CN 205483141 U CN205483141 U CN 205483141U
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- diapire
- pipe joint
- watchcase
- hollow cavity
- groove
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Abstract
The utility model discloses a last watchcase subassembly of gas table. It is mainly solved and has now into, is gone out the pipe connection and is connected insecure problem with last watchcase. It includes that one goes up watchcase and two couplings, distinguishes two hollow chambeies of punching press outside to in the position ab intra of presetting of last watchcase, it has a joint hole to open on the diapire in each hollow chamber, characteristics are: the system has a location tang on the stiff end of each coupling, has seted up the groove on the tang of location, and the stiff end of coupling passes corresponding joint hole respectively, and the pipe wall of this stiff end corresponds to press and rivet on the medial surface of the diapire in hollow chamber, location tang cooperation on the lateral surface of the diapire in hollow chamber, girth welding between the lateral surface of the diapire in groove and hollow chamber. The utility model discloses a coupling and last watchcase through the pressure rivet, the welding mode is connected, its reasonable in design connects reliably.
Description
Technical field
This utility model relates to parts or the adnexa of a kind of flowrate measuring tool, the upper watchcase assembly of a kind of gas meter, flow meter.
Background technology
It is understood that, diaphragm gas meter is to flow through pipeline combustion gases amass the flow measurement instrument of total amount in order to accumulative, it mainly includes watchcase and is located at the membrane type quantifier of watchcase inner chamber, and its watchcase is to be assembled by upper watchcase and lower watchcase, upper watchcase is respectively fixedly connected with two pipe joints, i.e. one air inlet pipe joint and an escape pipe joint.Its pipe joint with traditional connection method of upper watchcase is: processed by flange after upper watchcase housing punching；Pipe joint car is prevented mouth；Welding after being aligned with the setting edge dug by pipe joint seam, it exists, and speed of welding is slow, manufacture inefficient problem.In order to solve this problem, the applicant applies for and discloses in CN 103017849 A Chinese invention patent application description on April 3rd, 2013 disclosing " watchcase assembly on a kind of gas meter, flow meter ", it is characterized in: on upper watchcase, distinguish the hollow inlet chamber of drawing one and a hollow outlet chamber from the inside to the outside, at inlet chamber, the most corresponding stamping-out one air inlet on the diapire of outlet chamber, one venthole, radially connected of air inlet pipe joint with the outer radial surface of the diapire of inlet chamber, radially connected of escape pipe joint couples with the outer radial surface circumferential weld projection welding of the diapire of outlet chamber.The technical scheme manufacturing process of this application is simple, and it is fast that circumferential weld projection welding couples speed, and the manufacturing cycle is short, low cost.But the upper watchcase assembly of said structure, its inlet, outlet pipe joint is little with the corresponding weld gap into and out of the circumferential weld projection welding connection between air cavity diapire, cause weld strength between the two low, and inlet, outlet pipe joint is gas meter connection source of the gas, the connection member of burner, by complicated moment loading when it is installed or keeps in repair, easily causing inlet, outlet pipe joint to depart from upper watchcase, it exists and connects insecure problem.
Summary of the invention
Exist be connected insecure deficiency to overcome inlet, outlet pipe joint in prior art easily to depart from upper watchcase, this utility model provide a kind of reasonable in design, manufacture the upper watchcase assembly that efficiency is high, connect reliable gas meter, flow meter.
This utility model solves its technical problem and be the technical scheme is that the upper watchcase assembly of a kind of gas meter, flow meter, and it includes watchcase and two pipe joints on one, and the predeterminated position at described upper watchcase distinguishes punching press two hollow cavity from the inside to the outside；The diapire of each hollow cavity has a nipple orifice；The connection end of each pipe joint is shaped with connection screw thread, it is characterized in that: on the fixing end of each pipe joint, be shaped with positioning spigot, described positioning spigot offers groove, the fixing end of described pipe joint is each passed through the nipple orifice of correspondence, and the tube wall correspondence of the fixing end of pipe joint presses on the medial surface of the diapire of hollow cavity, described positioning spigot coordinates on the lateral surface of the diapire of hollow cavity, girth welding between the lateral surface of the diapire of groove and hollow cavity.
Described groove is monolateral double V-groove.
The tube chamber of described pipe joint is stepped tube chamber.
This utility model be upper watchcase predeterminated position from the inside to the outside distinguish punching press two hollow cavity, the diapire of hollow cavity has nipple orifice, on it, watchcase and hollow cavity are the most stamping by mould, and its nipple orifice forms with upper watchcase, hollow cavity stamping-out simultaneously through mould, and it is high that it manufactures efficiency；It is shaped with positioning spigot on the fixing end of two pipe joints, positioning spigot offers groove, the fixing end of pipe joint is through nipple orifice, positioning spigot coordinates location with the lateral surface of hollow cavity diapire, the tube wall of its fixing end presses on the medial surface of hollow cavity diapire, girth welding between the lateral surface of groove and hollow cavity diapire, pipe joint is reliable by welding, press and being connected with upper watchcase, compared with prior art, pipe joint of the present utility model is not easily disconnected from upper watchcase, its reasonable in design, dependability is high.
Accompanying drawing explanation
The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.
Fig. 1 is a kind of structural representation of the present utility model；
Fig. 2 is Fig. 1 close-up schematic view at I.
Labelling in figure: 1. going up watchcase, 101. hollow cavities, 102. nipple orifice, 2. pipe joint, 201. tube chambers, 202. connect screw thread, 203. positioning spigots, 204. grooves.
Detailed description of the invention
As it is shown in figure 1, the upper watchcase assembly of a kind of gas meter, flow meter, it includes watchcase 1 and two pipe joints 2 on one.Two pipe joints 2 are connected to appendix (not shown) respectively, and combustion gas, after completing counting, is exported by another appendix through another pipe joint in upper watchcase 1 by an appendix in respective tube joint is filled with upper watchcase 1.
For ease of docking, as in figure 2 it is shown, the tube chamber 201 of pipe joint 2 is stepped tube chamber 201 of appendix and pipe joint 2.
In fig. 2, the predeterminated position at upper watchcase 1 distinguishes punching press two hollow cavity 101 from the inside to the outside.The molding of two hollow cavities 101 also disposably can complete with the molding of upper watchcase 1.
As in figure 2 it is shown, have a nipple orifice 102 on the diapire of each hollow cavity 101.
As in figure 2 it is shown, be respectively equipped with connection screw thread 202 on the outer peripheral face connecting end of each pipe joint 2, this screw thread is according to " diaphragm gas meter national standard (GB/T 6968-2011) " car system.
As shown in Figure 2, the fixing end of each pipe joint 2 is shaped with positioning spigot 203, this positioning spigot 203 offers groove 204, the fixing end of pipe joint 2 is through corresponding nipple orifice 102, and the tube wall correspondence of the fixing end of pipe joint 2 presses on the medial surface of hollow cavity 101 diapire, positioning spigot 203 coordinates on the lateral surface of the diapire of hollow cavity 101, and under the effect of pressing of positioning spigot 203 end fixing with pipe joint 2 tube wall, pipe joint 2 is fixed on hollow cavity 101 diapire.
Stable connection and sealing, girth welding between the lateral surface of groove 204 and the diapire of hollow cavity 101 for reinforced pipe joint 2 and upper watchcase 1.Monolateral V-type made by groove 204 car, and the setting of this groove 204 adds connection area, and it adds attachment force after the lateral surface girth welding of the diapire of hollow cavity 101.
This utility model is to press the tube wall of fixing for pipe joint 2 end on the medial surface of hollow cavity 101 diapire through nipple orifice 102, and being pressed by pipe joint 2 is fixed on upper watchcase 1；The positioning spigot 203 being shaped with on the fixing end of pipe joint 2 coordinates on the lateral surface of hollow cavity 101 diapire, girth welding between groove 204 and the lateral surface of hollow cavity 101 diapire on positioning spigot 203.Pipe joint 2 with upper watchcase 1 by pressing, welding manner is connected, it is reasonable in design, connection is reliable.
Claims (3)
1. a upper watchcase assembly for gas meter, flow meter, it includes watchcase and two pipe joints on one, and the predeterminated position at described upper watchcase distinguishes punching press two hollow cavity from the inside to the outside；The diapire of each hollow cavity has a nipple orifice；The connection end of each pipe joint is shaped with connection screw thread, it is characterized in that: on the fixing end of each pipe joint, be shaped with positioning spigot, described positioning spigot offers groove, the fixing end of described pipe joint is each passed through the nipple orifice of correspondence, and the tube wall correspondence of the fixing end of pipe joint presses on the medial surface of the diapire of hollow cavity, described positioning spigot coordinates on the lateral surface of the diapire of hollow cavity, girth welding between the lateral surface of the diapire of groove and hollow cavity.
The upper watchcase assembly of a kind of gas meter, flow meter the most according to claim 1, it is characterised in that: described groove is monolateral double V-groove.
The upper watchcase assembly of a kind of gas meter, flow meter the most according to claim 1, it is characterised in that: the tube chamber of described pipe joint is stepped tube chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620236839.XU CN205483141U (en) | 2016-03-27 | 2016-03-27 | Last watchcase subassembly of gas table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620236839.XU CN205483141U (en) | 2016-03-27 | 2016-03-27 | Last watchcase subassembly of gas table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205483141U true CN205483141U (en) | 2016-08-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620236839.XU Active CN205483141U (en) | 2016-03-27 | 2016-03-27 | Last watchcase subassembly of gas table |
Country Status (1)
| Country | Link |
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| CN (1) | CN205483141U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111024176A (en) * | 2019-04-02 | 2020-04-17 | 罗德精密五金(芜湖)股份有限公司 | Joint of welding type gas meter |
-
2016
- 2016-03-27 CN CN201620236839.XU patent/CN205483141U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111024176A (en) * | 2019-04-02 | 2020-04-17 | 罗德精密五金(芜湖)股份有限公司 | Joint of welding type gas meter |
| CN111024176B (en) * | 2019-04-02 | 2021-04-13 | 罗德精密五金(芜湖)股份有限公司 | Joint of welding type gas meter |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |