CN2332307Y - Safety valve of pressure cooker - Google Patents
Safety valve of pressure cooker Download PDFInfo
- Publication number
- CN2332307Y CN2332307Y CN 98209435 CN98209435U CN2332307Y CN 2332307 Y CN2332307 Y CN 2332307Y CN 98209435 CN98209435 CN 98209435 CN 98209435 U CN98209435 U CN 98209435U CN 2332307 Y CN2332307 Y CN 2332307Y
- Authority
- CN
- China
- Prior art keywords
- valve
- valve body
- spool
- pressure cooker
- spring
- 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 safety valve of a pressure cooker, which is designed for safe usage of pressure cookers. The utility model comprises a valve body, a valve core and a spring, wherein the center of the valve body has a round cavity, the valve core is arranged in the round cavity, and the valve core contacts and is sealed with the valve body; the top end of the valve core extends out of the valve body and is connected with a valve handle via a pin shaft, and the spring is pushed between the valve core and the inner cavity of the valve body; simultaneously, the valve body is provided with an air exhaust passage. The utility model is characterized in that the valve body is connected with a valve cap via screws. The utility model has the advantages of easy disassembly and cleaning, stable and reliable operation pressure, etc.
Description
The utility model relates to pressure cooker safety valve technical field.
Along with living standards of the people improve, pressure cooker is come into huge numbers of families, but in use because the pressure cooker explosion phenomenon can take place in misoperation or cause for quality, bring potential hazard for people's life safety, therefore a lot of scientific and technical personnel have done technological improvement to the pressure cooker safety valve, it as the patent No. 96207068.8 Chinese patent " pressure cooker safety valve ", it is by bonnet, valve seat, seal washer, spool and spring are formed, have bleeder port on the bonnet and spool stretches out the hole, spring withstands on respectively on spool and the bonnet, it has compact conformation, advantage such as safe and convenient to use, but also exist the some shortcomings part.As easy to break washing not, easily be that dirt stops up air flue, it is big, unstable or the like to seal not firm, operating pressure fluctuating range.
Therefore thereby the purpose of this utility model is to provide a kind of washable venthole road that makes to be difficult for the pressure cooker safety valve that is stopped up by dirt.
The technical solution of the utility model is such.This pressure cooker safety valve comprises valve body, spool, seal washer, valve handle, spring, the valve body center has cylindrical cavity, in spool is housed, spool contacts sealing with valve body, it is outer by bearing pin connection valve handle that valve body is stretched out on the spool top, and there is spring on the top between spool and the body cavity, and valve body has disappointing duct simultaneously, it is characterized in that described valve body bottom sides has external screw thread, valve gap has the hole.
Above-mentioned valve body top is fixed on the pot cover with locking nut by the connection valve gap that is threaded, and spool has the sealing bulge loop in contact sealing place, under the bulge loop cannelure is arranged simultaneously, is lined with O grommet type seal circle in the groove.
The safety valve adopts removable structure, makes cleaning maintenance convenient, and safety valve is difficult for by all plugs, and adopts flat seal, and sealing is closely reliable, and job stability is strong, and the pot inner pressure fluctuating range is little, safety and reliability.
Description of drawings.
Fig. 1. pressure cooker safety valve structure cutaway view.
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
As shown in the figure, this pressure cooker safety valve comprises valve body (9), seal washer (8), valve gap (7), valve handle (6), bearing pin (5), spring (4), spool (3), sealing ring (2), locking nut (1).The valve body center has cylindrical cavity, be the two-section shape, upper diameter is big, lower diameter is little, side, valve body bottom has external screw thread, passes the pot cover circular hole, and available locking nut is fixed on the pot cover, valve body and contact position, pot cover boundary are lined with sealing ring, the valve body center is equipped with spool, and spool contacts sealing place with valve body, and cylindrical bulge loop is arranged, have cannelure below the bulge loop, O grommet type seal circle is housed in the groove, and the valve body top-side has external screw thread and the engagement of valve gap internal thread, and the valve gap center drilling, the extended valve body in spool top outside connects valve handle by bearing pin like this.In the valve body cylindrical cavity, there is spring on the top between spool and the valve gap, and the valve body both sides have disappointing duct.
This pressure cooker safety valve can be controlled operating air pressure in a narrower scope, and when the pot internal gas pressure was lower than lower limit, spool closely contacted with valve body, keeps sealing.When pot internal gas pressure during greater than lower limit, air pressure meeting jack-up spool and seal washer, by the disappointing step-down in the duct of losing heart, and the valve handle overturning that the spool top connects, guarantee that the pot internal gas pressure is lower than higher limit and can prevents that valve core reset from can disclose the air pressure situation again, in time remind the user, guarantee safe handling.When unpicking and washing, as long as unclamp valve gap, can take off parts, be open state, can wash crude removal with water, airway unobstructed in the maintaining valve makes safety valve work safety and reliability.
Claims (3)
1. pressure cooker safety valve, it comprises valve body (9), spool (3), seal washer (8), valve handle (6), spring (4), the valve body center has cylindrical cavity, in spool is housed, spool contacts sealing with valve body, the spool top stretches out that valve body is outer to connect valve handle by bearing pin, and there is spring on the top between spool and the body cavity, valve body has disappointing duct simultaneously, it is characterized in that described valve body top by the connection valve gap that is threaded, and valve gap has the hole.
2. pressure cooker safety valve as claimed in claim 1 is characterized in that described valve body bottom sides has external screw thread, is fixed on the pot cover with locking nut.
3. pressure cooker safety valve as claimed in claim 1 is characterized in that described spool has the sealing bulge loop in contact sealing place, under the bulge loop cannelure is arranged simultaneously, is lined with O grommet type seal circle in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98209435 CN2332307Y (en) | 1998-04-10 | 1998-04-10 | Safety valve of pressure cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98209435 CN2332307Y (en) | 1998-04-10 | 1998-04-10 | Safety valve of pressure cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2332307Y true CN2332307Y (en) | 1999-08-11 |
Family
ID=33964839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98209435 Expired - Fee Related CN2332307Y (en) | 1998-04-10 | 1998-04-10 | Safety valve of pressure cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2332307Y (en) |
-
1998
- 1998-04-10 CN CN 98209435 patent/CN2332307Y/en not_active Expired - Fee Related
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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 |