CN2713261Y - Connection structure for valve casing and end cover - Google Patents
Connection structure for valve casing and end cover Download PDFInfo
- Publication number
- CN2713261Y CN2713261Y CN 200420037181 CN200420037181U CN2713261Y CN 2713261 Y CN2713261 Y CN 2713261Y CN 200420037181 CN200420037181 CN 200420037181 CN 200420037181 U CN200420037181 U CN 200420037181U CN 2713261 Y CN2713261 Y CN 2713261Y
- Authority
- CN
- China
- Prior art keywords
- end cap
- casing
- valve
- shell
- welding
- 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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- Valve Housings (AREA)
Abstract
The utility model relates to a connection structure for a casing and an end cover, and the connection structure in arranged in the valve body of an electromagnetic valve, an electronic expansion valve or the similar valve. The existing connection structure is the welding of the lateral sides of the housing and the end cover. The variation of the outer diameter of the casing is overlarge, an effective driving force is reduced, and the actuate performance of the valve is affected; besides, the welding seam is uneven, and the resistance to compression is low. The utility model comprises the valve body casing and the end cap, and is characterized in that the end cap arranged in the casing is in a tight link with the casing, and the end surfaces of the casing and the end cap are flat and parallel. The casing and the end cap are welded on the end surfaces of the tops. The welding strength is high, under the connection method of the utility model, and the connection is reliable; besides, the rational assembling of the valve body casing and a periphery coil is guaranteed.
Description
[technical field]
The utility model relates to the linkage structure of a kind of solenoid valve, electric expansion valve or similar valve body China and foreign countries' shell and end cap.
[background technique]
Similar structure such as solenoid valve, electric expansion valve valve is formed by valve body and coil.Valve body plays fixed valve base, connects the effect of built-in function part and sealed inside gas or liquid.At present, the sealing reliability of solenoid valve, electric expansion valve and start are the subject matter that refrigeration industry faces.Valve body is subjected to alternation pressure of compressed air or action of hydraulic force in the course of the work, and the welded structure of valve shell and end cap and intensity directly influence the resistance to pressure of valve.The gap that valve body cooperates with coil directly influences effective driving force that coil produces, and is very big to the start influence of valve.
The shell 2 of existing valve body ' with end cap 1 ' the welding position in both side (as shown in Figure 1), welding in this position be easy to guarantee end cap 1 ' with valve shell 2 ' perpendicularity, simple to operate, but the shortcoming that exists is that the side is welded, can only adopt horizontal welding, it is excessive that the thawing metal of underflow changes the shell external diameter, thereby increased the matching gap between shell and the coil, thereby reduced effective driving force, influenced the start performance of valve, thereby the voltage that must improve coil compensates, and is unfavorable for energy-conservation.Simultaneously, in the welding process of side, the easy underflow of the metal of thawing makes and the weld seam inequality has reduced compressive strength.
[model utility content]
The technical assignment of technical problem to be solved in the utility model and proposition is the defective that overcomes above-mentioned prior art, provide a kind of valve shell and with the end cap of its interference fit top end face welded structure at both, to guarantee weld strength, effectively control the matching gap between shell and the drive coil, improve effective driving force of coil.
The technological scheme that the utility model adopted is such: the linkage structure of valve shell and end cap, comprise valve shell and end cap, it is characterized in that end cap is positioned at shell, concordant with shell interference fit and both end faces, shell and end cap are in both end, top welding.This Placement that the utility model adopts has the weld strength height, connects reliable advantage; The size of valve shell and the reasonable assembling of peripheral coil have been guaranteed simultaneously.
The linkage structure of described valve shell and end cap, end cap is cup-shaped, and end face forms flange, be provided with chamfering with the shell place of flange welding, because flange inner is a cavity, the metal that melts during welding can act on flange and inwardly dilate, and has prevented that effectively the valve shell postwelding from swelling.
The welding position of shell and end cap has changed the existing mode of welding from the side, and has taked the vertical welding from the top in both ends, top in the utility model, and the metal of thawing is inserted in the end face slit, and even weld has guaranteed weld strength; Effectively control matching gap between shell and the drive coil by adjusting magnitude of interference between end cap and shell simultaneously, improved effective driving force of coil.
Below in conjunction with specification drawings and specific embodiments the utility model is further described.
[description of drawings]
The structural representation that Fig. 1 is connected with end cap for existing valve shell.
Fig. 2 is a structural representation of the present utility model.
[embodiment]
As shown in Figure 2, the linkage structure of valve shell and end cap comprises valve shell 2 and end cap 1, and end cap 1 is positioned at shell 2, and concordant with shell 2 interference fit and both end faces, end cap 1 is cup-shaped, and end face forms flange, and the shell place of welding with flange is provided with chamfering.End cap 1 and shell 2 all have stainless steel material to process, and smooth with inwall, end cap cylindrical and end face is benchmark, after fixing after the process interference fit press-fits, carry out the argon arc welding in the joint of top end face, the metal that melts infiltrates from the slit between flange and the chamfering, on the one hand, has strengthened weld strength, on the other hand, prevent that effectively the valve body postwelding from swelling.
Claims (2)
1, the linkage structure of valve shell and end cap, comprise valve shell (2) and end cap (1), it is characterized in that end cap (1) is positioned at shell (2), concordant with shell (2) interference fit and both end faces, shell (2) and the top end welding of end cap (1) at both.
2, the linkage structure of valve shell as claimed in claim 1 and end cap is characterized in that described end cap (1) is cup-shaped, and end face forms flange, locates to be provided with chamfering with the shell (2) of flange welding.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420037181 CN2713261Y (en) | 2004-06-29 | 2004-06-29 | Connection structure for valve casing and end cover |
| JP2005184356A JP4891572B2 (en) | 2004-06-29 | 2005-06-24 | Valve body for solenoid valve or electronic expansion valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420037181 CN2713261Y (en) | 2004-06-29 | 2004-06-29 | Connection structure for valve casing and end cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2713261Y true CN2713261Y (en) | 2005-07-27 |
Family
ID=34871624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420037181 Expired - Lifetime CN2713261Y (en) | 2004-06-29 | 2004-06-29 | Connection structure for valve casing and end cover |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4891572B2 (en) |
| CN (1) | CN2713261Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200191A (en) * | 2010-03-22 | 2011-09-28 | 浙江三花制冷集团有限公司 | Reversing valve |
| WO2015007013A1 (en) * | 2013-07-17 | 2015-01-22 | 浙江三花股份有限公司 | Electronic expansion valve and manufacturing method therefor |
| CN108375251A (en) * | 2014-12-16 | 2018-08-07 | 浙江三花汽车零部件有限公司 | Heating power expansion valve and its manufacturing method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101788071A (en) * | 2009-01-23 | 2010-07-28 | 浙江三花制冷集团有限公司 | Reversing valve and manufacturing method thereof |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2747847A1 (en) * | 1976-10-29 | 1978-05-03 | Grove Valve & Regulator Co | VALVE |
| JPS54154428A (en) * | 1978-05-26 | 1979-12-05 | Nitto Electric Ind Co Ltd | Strippable coating composition |
| JPS57205463A (en) * | 1981-06-12 | 1982-12-16 | Toyo Ink Mfg Co Ltd | Transparent ink |
| JPS62165852A (en) * | 1986-01-17 | 1987-07-22 | Toshiba Battery Co Ltd | Laser-welding for cell sealing portion |
| JPS6341863A (en) * | 1986-08-07 | 1988-02-23 | Konica Corp | Developing method for electrostatic latent image |
| JPS63158019A (en) * | 1986-12-22 | 1988-07-01 | 松下電器産業株式会社 | Container of pot |
| DE19621229A1 (en) * | 1996-05-25 | 1997-11-27 | Bosch Gmbh Robert | Valve block with at least one magnetically controllable valve, esp. for vehicle hydraulic braking system |
| JPH1186809A (en) * | 1997-09-08 | 1999-03-30 | Showa Alum Corp | Jointing method of container |
| JP4278222B2 (en) * | 1999-03-17 | 2009-06-10 | 三洋電機株式会社 | Sealing plate for sealed battery, sealed battery and manufacturing method thereof |
| JP2001079660A (en) * | 1999-09-17 | 2001-03-27 | Nok Corp | Manufacture of pressure vessel |
| JP2001241562A (en) * | 2000-03-01 | 2001-09-07 | Pacific Ind Co Ltd | Control valve |
| JP2002122261A (en) * | 2000-10-16 | 2002-04-26 | Aisin Seiki Co Ltd | Connecting method of sleeve and solenoid case on solenoid valve and solenoid valve |
| JP2002239721A (en) * | 2001-02-14 | 2002-08-28 | Mitsubishi Heavy Ind Ltd | Welding method and method for manufacturing metallic closed vessel |
| JP2002340213A (en) * | 2001-05-16 | 2002-11-27 | Denso Corp | Flow control valve |
| JP4064646B2 (en) * | 2001-06-29 | 2008-03-19 | 三菱重工業株式会社 | Sealed container for radioactive material, sealed welding method for sealed container, and exhaust device used for sealed welding method |
-
2004
- 2004-06-29 CN CN 200420037181 patent/CN2713261Y/en not_active Expired - Lifetime
-
2005
- 2005-06-24 JP JP2005184356A patent/JP4891572B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200191A (en) * | 2010-03-22 | 2011-09-28 | 浙江三花制冷集团有限公司 | Reversing valve |
| WO2015007013A1 (en) * | 2013-07-17 | 2015-01-22 | 浙江三花股份有限公司 | Electronic expansion valve and manufacturing method therefor |
| US9964227B2 (en) | 2013-07-17 | 2018-05-08 | Zhejiang Sanhua Climate & Appliance Controls Group Co., Ltd. | Electronic expansion valve and manufacturing method therefor |
| CN108375251A (en) * | 2014-12-16 | 2018-08-07 | 浙江三花汽车零部件有限公司 | Heating power expansion valve and its manufacturing method |
| CN108375251B (en) * | 2014-12-16 | 2020-06-23 | 浙江三花汽车零部件有限公司 | Thermal expansion valve and manufacturing method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006017303A (en) | 2006-01-19 |
| JP4891572B2 (en) | 2012-03-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140629 Granted publication date: 20050727 |