CN2292196Y - Seal structure for four-way reversal valve end cover and conical plug used in domestic air conditioner - Google Patents
Seal structure for four-way reversal valve end cover and conical plug used in domestic air conditioner Download PDFInfo
- Publication number
- CN2292196Y CN2292196Y CN 97204315 CN97204315U CN2292196Y CN 2292196 Y CN2292196 Y CN 2292196Y CN 97204315 CN97204315 CN 97204315 CN 97204315 U CN97204315 U CN 97204315U CN 2292196 Y CN2292196 Y CN 2292196Y
- Authority
- CN
- China
- Prior art keywords
- end cap
- tapered plug
- end cover
- domestic air
- reversal valve
- 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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- Multiple-Way Valves (AREA)
- Magnetically Actuated Valves (AREA)
Abstract
The utility model discloses a seal structure for four-way reversal valve end covers and conical plugs used for domestic air conditioners, which is the improvement of the prior art. Inner holes of an end cover are designed into conical holes; end edges of the wedge plugs are directly pressed on conical surfaces of the inner holes of the end cover to realize the effective sealing. Therefore, the utility model has the advantages of simple structure, good sealing effect, low requirement of processing, the small quantity of internal quantity, high product yield, etc.
Description
The utility model relates to a kind of domestic air conditioning end cap of four-way change-over valve and the sealing configuration of tapered plug.
The sealing of four-way change-over valve mainly comprises the sealing on slide block and valve seat mating face and the sealing on end cap and tapered plug mating face, and the quality of sealing is the key factor that influences four-way valve internal leakage amount.The sealing configuration of known tapered plug 1 and end cap 2 is to adopt the conical surface of tapered plug to be pressed on the round mouth of end cap endoporus and (the seeing accompanying drawing 1) realizing sealing, this sealing configuration requires the circularity of tapered plug conical surface higher, increased the difficulty of processing of tapered plug, and because when welding end cap easily cause distortion and influence the circularity of end cap endoporus round mouth, thereby influence sealing effect, it is overproof to produce the internal leakage amount, causes the reduction of air conditioner refrigerating amount or heating capacity, simultaneously impact resistance not again.In addition, along with the increase of commutation number of times, the conical surface of tapered plug easily causes depression, and because of tapered plug distortion depression, clings end cap, so that can not commutate reliably.
The purpose of this utility model is in order to overcome the deficiency of above-mentioned existence, and provides a kind of good sealing effect, impact resistance, the four-way change-over valve end cap that the internal leakage amount is low and the sealing configuration of tapered plug.
The purpose of this utility model is finished by following technical solution, and described end cap endoporus is a conical bore, and the end margin of tapered plug can directly be pressed on the conical surface of end cap endoporus.Described tapered plug end margin is constituted by the handing-over loop wire of circular cone and cylinder.
Description of drawings is as follows:
Fig. 1 is former end cap and tapered plug sealed structural representation.
Fig. 2 is the structural representation of four-way change-over valve of the present utility model.
Fig. 3 is end cap of the present utility model and tapered plug sealed structural representation.
Below will the utility model is further introduced: Fig. 2 by accompanying drawing, four-way change-over valve generally is made up of solenoid pilot valve 3 and main valve 4, commutation by solenoid pilot valve makes the main valve two ends produce pressure reduction, promote the commutation of piston element moment impact, the structure of this four-way change-over valve is disclosed by Chinese patent 94217324, Fig. 3, end cap 5 endoporus described in the utility model are set to conical bore, the end margin that the handing-over loop wire of circular cone on the tapered plug 6 and cylinder forms tapered plug can directly be pressed on the conical surface of end cap endoporus, like this, the surface of contact of sealing increases, even the commutation number of times increases, its surface of contact can not diminish yet, though when welding end cap conical surface a little distortion is arranged, pressure is bigger during because of commutation, the plastics tapered plug can be along with the distortion of the conical surface of end cap 5 and is out of shape, thereby increased the reliability of sealing, inner leakage rate can not increase yet, and therefore empty refrigerating capacity or the heating capacity that withers can not reduce yet.
The utility model is a kind of improvement to prior art, compared with prior art, has simple in structure, close Seal effectively, processing request is low, and the internal leakage amount reaches technical requirement easily, makes the yield rate of product big The characteristics such as big raising.
Claims (2)
1, a kind of domestic air conditioning is characterized in that with the sealing configuration of four-way change-over valve end cap and tapered plug described end cap (5) endoporus is a conical bore, and the end margin of tapered plug (6) can directly be pressed on the conical surface of end cap (5) endoporus.
2, domestic air conditioning as claimed in claim 1 is with the sealing configuration of four-way change-over valve end cap and tapered plug, and the end margin that it is characterized in that described tapered plug (6) is constituted by the exchange loop wire of circular cone and cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97204315 CN2292196Y (en) | 1997-01-07 | 1997-01-07 | Seal structure for four-way reversal valve end cover and conical plug used in domestic air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97204315 CN2292196Y (en) | 1997-01-07 | 1997-01-07 | Seal structure for four-way reversal valve end cover and conical plug used in domestic air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2292196Y true CN2292196Y (en) | 1998-09-23 |
Family
ID=33924894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97204315 Expired - Lifetime CN2292196Y (en) | 1997-01-07 | 1997-01-07 | Seal structure for four-way reversal valve end cover and conical plug used in domestic air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2292196Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101076686B (en) * | 2004-08-23 | 2010-06-23 | 浙江三花股份有限公司 | Reversing valve assembly with improved pilot valve mounting structure |
| CN102200191A (en) * | 2010-03-22 | 2011-09-28 | 浙江三花制冷集团有限公司 | Reversing valve |
| CN102539076A (en) * | 2011-12-28 | 2012-07-04 | 中国计量学院 | Pilot valve air tightness testing device |
-
1997
- 1997-01-07 CN CN 97204315 patent/CN2292196Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101076686B (en) * | 2004-08-23 | 2010-06-23 | 浙江三花股份有限公司 | Reversing valve assembly with improved pilot valve mounting structure |
| CN102200191A (en) * | 2010-03-22 | 2011-09-28 | 浙江三花制冷集团有限公司 | Reversing valve |
| CN102539076A (en) * | 2011-12-28 | 2012-07-04 | 中国计量学院 | Pilot valve air tightness testing device |
| CN102539076B (en) * | 2011-12-28 | 2014-03-12 | 中国计量学院 | Pilot valve air tightness testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHEJIANG SANHUA GROUP CO., LTD. Free format text: FORMER NAME OR ADDRESS: SANHUA GROUP CORP., ZHEJIANG |
|
| CP03 | Change of name, title or address |
Address after: Lower Xinchang, Chengguan Town, Zhejiang County, Liquan Patentee after: Zhejiang Sanhua Group Corp., Ltd. Address before: Chengguan Town, Xinchang County, Zhejiang Patentee before: Sanhua Group Corp., Zhejiang Prov. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |