CN201236949Y - Sealing type stop valve - Google Patents
Sealing type stop valve Download PDFInfo
- Publication number
- CN201236949Y CN201236949Y CNU2008200550887U CN200820055088U CN201236949Y CN 201236949 Y CN201236949 Y CN 201236949Y CN U2008200550887 U CNU2008200550887 U CN U2008200550887U CN 200820055088 U CN200820055088 U CN 200820055088U CN 201236949 Y CN201236949 Y CN 201236949Y
- Authority
- CN
- China
- Prior art keywords
- valve rod
- valve
- hand member
- installation cavity
- groove
- 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 a closed stop valve used for an air conditioner, which belongs to the technical field of the stop valve. The closed stop valve is characterized in that an annular protuberance with a thread is formed in a valve rod installation cavity, a sealing ring in a groove on a valve rod is sealed with the inner surface of the valve rod installation cavity in a matching manner, an external thread on the valve rod is matched with the thread on the annular protuberance for transmission, and the right end head of the valve rod is of a truncated cone shape; an escape is formed at the end part of a secondary refrigerant channel opposite to the valve rod installation cavity, the right end of the valve rod extends in the escape, and the conical surface of the right end head of the valve rod is contacted, matched and sealed with a step positioned in the valve body; the utility model has the advantages that the conical end head of the valve rod is sealed with the step on the valve body, therefore, the utility model not only has simple structure, but also has good sealing performance, and compared with the stop valve used for other air conditioners, since the escape is additionally formed, the flow space of the valve body is correspondingly increased, the length of the stop valve is reduced, and the material is saved.
Description
[technical field]
The utility model relates to the stop valve technical field, specifically a kind of closed stop valve of use in refrigeration system.
[background technique]
At present, use the closed stop valve of a kind of use in refrigeration system, the sealing of valve body and valve rod chamber is adopted sealing seat, seal ring, is compressed bolt structure, seals.Complex structure adds man-hour, and operation is many, lavishes labor on waste material.
[summary of the invention]
The objective of the invention is: a kind of closed stop valve of use in refrigeration system is provided, not only has excellent sealing performance, and also simple in structure, easy to process, economical with materials.
The utility model is achieved in that a kind of closed stop valve, comprise adapter, valve body, valve rod, the fluorinfused nozzle nut, last cap nut, Female connector fittings, the non-return valve inside, right-hand member at valve rod has outside thread, it is conical that the right-hand member head is, the left end head of valve rod has an inner hexagonal hole, left end has a groove, seal ring is arranged in the groove, valve rod installation cavity chamber internal surface and valve rod fitted seal, its special way is at the valve rod installation cavity one threaded annular projection is arranged, seal ring and valve rod installation cavity chamber internal surface fitted seal in the valve rod upper groove, screw-thread fit transmission on outside thread and the annular projection on the valve rod, the right-hand member head of valve rod is frustoconic shape; There is a tool withdrawal groove end with valve rod is installed the relative refrigerant passage of chamber, and the valve rod right-hand member stretches in the tool withdrawal groove, valve rod right-hand member head conical surface and the step contact matching sealing that is positioned at valve body.
The left end of valve rod has two grooves that seal ring is housed.
The beneficial effects of the utility model, step sealing on conical termination of valve rod and the valve body, so it is not only simple in structure, and has a good seal performance, compare owing to increased tool withdrawal groove with other use in refrigeration system stop valve, the corresponding interior flow space of valve body that increased makes the length integral body of this stop valve shorten, save material.
[description of drawings]
Fig. 1 is a structural representation of the present utility model.
[specific embodiment]
Below in conjunction with the drawings and specific embodiments the utility model is described in detail:
As shown in Figure 1, a kind of closed stop valve, comprise and take over 8, valve body 1, valve rod 2, fluorinfused nozzle nut 7, last cap nut 3, Female connector fittings 11, non-return valve inside 6, right-hand member at valve rod 2 has outside thread 9, the right-hand member head of valve rod 2 is frustoconic shape, the left end head of valve rod 2 has an inner hexagonal hole 12, interior hexagonal shrinkage pool 12 is used for throw and inserts, rotary valve rod 2, left end has a groove 5, seal ring 4 is arranged in the groove 5, and groove 5 can have one, two, valve rod is installed seal ring 4 fitted seal in chamber 15 internal surfaces and the valve rod 2 left end grooves 5, in valve rod is installed chamber 15, one threaded annular projection 14 is arranged, on the projection 14 screw thread is arranged, screw-thread fit transmission on outside thread 9 on the valve rod 2 and the annular projection 14; The right-hand member head of valve rod 2 is frustoconic shape, there is a tool withdrawal groove 10 end with valve rod is installed the relative refrigerant passage 13 of chamber 15, and tool withdrawal groove 10 constitutes a step 16 with refrigerant passage 13, valve rod 2 stretches in the tool withdrawal groove 10, valve rod 2 termination conical surfaces and the step 16 contact matching sealing that is positioned at valve body 1.
Claims (2)
1, a kind of closed stop valve, comprise adapter, valve body, valve rod, the fluorinfused nozzle nut, last cap nut, Female connector fittings, the non-return valve inside, right-hand member at valve rod has outside thread, it is conical that the right-hand member head is, the left end head of valve rod has anistree hole in, left end has a groove, seal ring is arranged in the groove, valve rod installation cavity chamber internal surface and valve rod fitted seal, it is characterized in that: one threaded annular projection is arranged at the valve rod installation cavity, seal ring and valve rod installation cavity chamber internal surface fitted seal in the valve rod upper groove, screw-thread fit transmission on outside thread and the annular projection on the valve rod, the right-hand member head of valve rod is frustoconic shape; There is a tool withdrawal groove end with valve rod is installed the relative refrigerant passage of chamber, and the valve rod right-hand member stretches in the tool withdrawal groove, valve rod right-hand member head conical surface and the step contact matching sealing that is positioned at valve body.
2, closed stop valve according to claim 1 is characterized in that: the left end of valve rod has two grooves that seal ring is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200550887U CN201236949Y (en) | 2008-01-25 | 2008-01-25 | Sealing type stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200550887U CN201236949Y (en) | 2008-01-25 | 2008-01-25 | Sealing type stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201236949Y true CN201236949Y (en) | 2009-05-13 |
Family
ID=40649680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200550887U Expired - Lifetime CN201236949Y (en) | 2008-01-25 | 2008-01-25 | Sealing type stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201236949Y (en) |
-
2008
- 2008-01-25 CN CNU2008200550887U patent/CN201236949Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |