CN2483650Y - Shut off valve set for air conditioner - Google Patents
Shut off valve set for air conditioner Download PDFInfo
- Publication number
- CN2483650Y CN2483650Y CN 01228615 CN01228615U CN2483650Y CN 2483650 Y CN2483650 Y CN 2483650Y CN 01228615 CN01228615 CN 01228615 CN 01228615 U CN01228615 U CN 01228615U CN 2483650 Y CN2483650 Y CN 2483650Y
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing surface
- spool
- stop valve
- pressure
- 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 - Fee Related
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Abstract
The utility model relates to a general component for air conditioning, and especially is a device which is used to prevent discharging condensate. A stop valve of an air conditioner comprises a low-pressure stop valve and a high-pressure stop valve which comprise a valve body, a valve core, a pipe connector, a sealing cap and a connecting pipe, and the valve core is provided with a front sealing surface, a back sealing surface is provided on middle and back part of the valve core, and a structure which is corresponding to the back sealing surface is provided inside the valve body. The utility model has the advantages of strong air tightness and long service life, etc, and is suitable for a split air conditioner as well as for a central air conditioner.
Description
The utility model relates to the universal component of air conditioning, in particular for preventing to drain the device of condensate liquid.
The compressor of air-conditioning has two stop valves: discharge line valve (low pressure valve) and suction line valve (high pressure valve).Existing device-the stop valve that prevents to drain condensate liquid, its spool have a sealing surface, promptly preceding sealing surface.The sealing face seals when stop valve is closed.And stop valve when work is by the seal with O ring on the spool.O shape circle is under the situation of long-term work, and especially the circle of the O shape in the high-pressure stop valve is aging easily, and cold-producing medium is slowly leaked.This is a technical barrier that is not solved for a long time.
The purpose of the utility model just is, discloses the air-conditioning stop valve group that a kind of air-tightness is strong, service life is long.
Air-conditioning stop valve group is made up of low-pressure shutoff valve and high-pressure stop valve.Low-pressure shutoff valve and high-pressure stop valve comprise valve body and dress spool and pipe joint within it, are contained in the outer sealing cap of valve body, are fixed on the adapter on the pipe joint.Preceding sealing surface is arranged on the spool.The postmedian of spool has back sealing surface, and the inner chamber of valve body has and back sealing surface corresponding structure.
Below in conjunction with embodiment shown in the drawings, the utility model is explained in detail.
Attached Fig. 1 and 2 is respectively the low-pressure shutoff valve of the utility model embodiment one and the front view of high-pressure stop valve, and accompanying drawing 3 is front views of the high-pressure stop valve of prior art.
Shown in attached Fig. 1 and 2, air-conditioning stop valve group is made up of low-pressure shutoff valve and high-pressure stop valve.Low-pressure shutoff valve and high-pressure stop valve comprise valve body 3 and dress spool 5 and pipe joint 2 within it, are contained in the sealing cap 7 outside the valve body 3, are fixed on the adapter 1 on the pipe joint 2.Spool 5 has preceding sealing surface 4.The postmedian of spool 5 has back sealing surface 6, and the inner chamber of valve body 3 has and back sealing surface 6 corresponding structure.
The valve body 3 of low-pressure shutoff valve has four inner chambers, wherein about two inner chambers are coaxial lines, be identical with prior art; And two inner chambers are different axis up and down, with prior art be different.The valve body 3 of high-pressure stop valve has three inner chambers, is identical with prior art.Methods such as adapter 1 employing welding are fixed on the pipe joint 2.The preceding sealing surface 4 of spool 5 forms sealing with the inner chamber of pipe joint 2.Back sealing surface 6 corresponding structure of the right inner chamber of valve body 3 and spool 5 are meant the structure such as step trough, T-slot etc., and it forms sealing with back sealing surface 6.Spool 5 floats, and three operating positions are arranged.When one, stop valve was closed, spool 5 was shifted the end left onto, and preceding sealing surface 4 seals with the inner chamber of pipe joint 2.Two, after stop valve was opened, the pressure that spool is 5 cooled doses was pushed the right side to, and the back sealing surface 6 of spool 5 seals with the step of the right inner chamber of valve body 3.Three, emit or when charging into cold-producing medium, spool 5 mediates, preceding sealing 4 and back sealing surface 6 are all inoperative.
Prior art as shown in Figure 3, when stop valve was worked, spool moved right, and the last inner chamber of valve body is communicated with left inner chamber, and this moment, the sealing of right inner chamber was just enclosed by the O shape on the spool entirely.O shape circle is made with rubber, and is aging easily, particularly in the working environment of high pressure.See attached Fig. 1 and 2 of the present utility model again, during stop valve work, spool 5 moves right, and the back sealing surface 6 of spool 5 seals with the step of valve body 3 right inner chambers.Add the O shape circle on the spool 5, formed dual-seal.Moreover, the lower inner cavity of low pressure valve valve body 3 (access hole) is also simultaneously sealed, has also formed dual-seal, has greatly improved air-tightness.Simultaneously, also prolonged service life.
The utility model both had been applicable to split-type air conditioner, the especially split-type air conditioner below five and five, also was applicable to central air-conditioning.
In the embodiment shown in the figures, low-pressure shutoff valve is Dg10, and high-pressure stop valve is Dg4.
Claims (1)
1, a kind of air-conditioning stop valve group, form by low-pressure shutoff valve and high-pressure stop valve, low-pressure shutoff valve and high-pressure stop valve comprise within it spool (5) and pipe joint (2) of valve body (3) and dress, be contained in the outer sealing cap (7) of valve body (3), be fixed on the adapter (1) on the pipe joint (2), spool (5) has preceding sealing surface (4), the postmedian that it is characterized in that spool (5) has back sealing surface (6), and the inner chamber of valve body (3) has and back sealing surface (6) corresponding structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01228615 CN2483650Y (en) | 2001-06-26 | 2001-06-26 | Shut off valve set for air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01228615 CN2483650Y (en) | 2001-06-26 | 2001-06-26 | Shut off valve set for air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2483650Y true CN2483650Y (en) | 2002-03-27 |
Family
ID=33643666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01228615 Expired - Fee Related CN2483650Y (en) | 2001-06-26 | 2001-06-26 | Shut off valve set for air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2483650Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7954856B2 (en) | 2006-03-31 | 2011-06-07 | Daikin Industries, Ltd. | Flareless pipe coupling structure, flareless pipe coupling method, and on-site pipe coupling method |
| CN102434677A (en) * | 2011-11-14 | 2012-05-02 | 宁波日月制冷设备有限公司 | Air conditioner stop valve |
-
2001
- 2001-06-26 CN CN 01228615 patent/CN2483650Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7954856B2 (en) | 2006-03-31 | 2011-06-07 | Daikin Industries, Ltd. | Flareless pipe coupling structure, flareless pipe coupling method, and on-site pipe coupling method |
| CN102434677A (en) * | 2011-11-14 | 2012-05-02 | 宁波日月制冷设备有限公司 | Air conditioner stop valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |