CN201445341U - Overpressure protection float valve for pressure cooker - Google Patents
Overpressure protection float valve for pressure cooker Download PDFInfo
- Publication number
- CN201445341U CN201445341U CN2009200588272U CN200920058827U CN201445341U CN 201445341 U CN201445341 U CN 201445341U CN 2009200588272 U CN2009200588272 U CN 2009200588272U CN 200920058827 U CN200920058827 U CN 200920058827U CN 201445341 U CN201445341 U CN 201445341U
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- CN
- China
- Prior art keywords
- push rod
- float
- sealing ring
- valve body
- pressure 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 - Fee Related
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Abstract
The utility model discloses an overpressure protection float valve for a pressure cooker, comprising a negative-pressure valve, a float penetrating through the inner part of the negative-pressure valve and being clearance fit with the negative-pressure valve, a valve sealing ring sleeved on the upper portion of the negative-pressure valve, a valve nut for fixing the negative-pressure valve and a float sealing ring arranged at the lower end of the float, a longitudinal through hole is arranged in the float, a push rod is arranged in the longitudinal through hole, the central section of the push rod is provided with a flange, of which the upper portion is sleeved with a spring, of which the lower portion is sleeved with a push rod sealing ring, the flange is in the clearance fit with the longitudinal through hole, the push rod, the push rod sealing ring and the longitudinal through hole are in the clearance fit when the push rod sealing ring is free and in the interference fit when the push rod sealing ring is compacted by the spring.
Description
Technical field
The utility model relates to a kind of pressure vessel protective device, particularly a kind of overpressure protection float-controlled valve that is used on the pressure cooker.
Background technology
The pressure cooker of Xiao Shouing in the market; generally on pot cover, be provided with pressure limiting valve and float-controlled valve; present limited valve plays the overpressure protection effect; float-controlled valve only plays the effect of folding lid and sealing; if pressure limiting valve generation exhaust is stopped up, pressure limiting valve will be lost its due function, does not have the effect of overpressure protection; potential safety hazard will be produced, danger such as product blast can be caused because the pressure cooker internal pressure is excessive.In addition, existing pressure limiting valve and float-controlled valve are separately made and are installed on the pot cover of pressure cooker, can cause the cost height like this, and also inconvenience is installed, and therefore, are necessary to make improvements.
Summary of the invention
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide that a kind of cost is low, easy for installation, dependable performance be used for overpressure protection float-controlled valve on the pressure cooker.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of overpressure protection float-controlled valve that is used on the pressure cooker; comprise the negative pressure valve body; through the negative pressure valve inner and and the negative pressure valve body between be the float of matched in clearance; be placed in the valve seals on negative pressure valve body top; the float seal circle that is used for fixing the valve body nut of negative pressure valve body and is located at the float bottom; be provided with a longitudinal hole in the described float; be provided with a push rod in the described longitudinal hole; the middle part of described push rod is provided with a flange; the top of described flange is arranged with a spring; the bottom of described flange is arranged with a push rod sealing ring; be matched in clearance between described flange and the described longitudinal hole; during being engaged in described push rod sealing ring and being in free state between described push rod and described push rod sealing ring and the described longitudinal hole three is matched in clearance, is interference fit at described push rod sealing ring during by described spring compression.
As a modification of the embodiment above, the bottom that is positioned at described flange on the described push rod is provided with the groove that be used for fixing push rod sealing ring corresponding with described push rod sealing ring.
The beneficial effects of the utility model are: owing to be provided with a longitudinal hole in the described float, be provided with a push rod in the described longitudinal hole, the middle part of described push rod is provided with a flange, the top of described flange is arranged with a spring, the bottom of described flange is arranged with a push rod sealing ring, and push rod and push rod sealing ring can or be opened the longitudinal hole sealing, thereby can keep the pressure cooker internal gas pressure below safety value, so the utility model dependable performance is safe and convenient to use; In addition, because existing pressure limiting valve and float-controlled valve are united two into one, so simple in structure, with low cost, install also very convenient.Thereby overpressure protection float-controlled valve described in the utility model can be widely used on the pressure cooker.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is STRUCTURE DECOMPOSITION figure of the present utility model;
Fig. 2 is a front view of the present utility model;
Fig. 3 is the cutaway view of A-A among Fig. 2.
The specific embodiment
With reference to Fig. 1; Fig. 2; Fig. 3; a kind of overpressure protection float-controlled valve that is used on the pressure cooker of the utility model; comprise negative pressure valve body 1; through negative pressure valve body 1 inner and and the negative pressure valve body between be the float 2 of matched in clearance; be placed in the valve seals 3 on negative pressure valve body 1 top; the float seal circle 5 that is used for fixing the valve body nut 4 of negative pressure valve body 1 and is located at float 2 bottoms; be provided with a longitudinal hole 21 in the described float 2; be provided with a push rod 6 in the described longitudinal hole 21; the middle part of described push rod 6 is provided with a flange 61; the top of described flange 61 is arranged with a spring 7; the bottom of described flange 61 is arranged with a push rod sealing ring 8; be matched in clearance between described flange 61 and the described longitudinal hole 21; during being engaged in described push rod sealing ring 8 and being in free state between described push rod 6 and described push rod sealing ring 8 and described longitudinal hole 21 threes is matched in clearance, is interference fit when described push rod sealing ring 8 is compressed by described spring 7.
As a modification of the embodiment above: the bottom that is positioned at described flange 61 on the described push rod 6 is provided with the groove that be used for fixing push rod sealing ring 62 corresponding with described push rod sealing ring 8, like this, makes being fixed on the push rod 6 that push rod sealing ring 8 can be more firm; Described spring 7 can be the needs of safe atmospheric pressure value with different exhaust pressure values according to the actual conditions of pressure cooker, adjusts its thickness, intensity and material, that is to say that the design of the elastic force size of spring 7 can be adjusted arbitrarily according to actual needs.
The periphery of the utility model float 2, float seal circle 5, negative pressure valve body 1 and float, the installation of negative pressure valve body on pressure cooker are to practise the technology that has, and at this, do not do and give unnecessary details.
Operation principle of the present utility model: be matched in clearance between float 2 and the negative pressure valve body 1, float 2 can be in negative pressure valve body 1 free lifting, pressure cooker before use, float 2 is in free hang, as shown in Figure 2, when pressure cooker is brought into use, the pot internal gas pressure slowly rises, gas can be discharged from the gap between float 2 and the negative pressure valve body 1 in the pot simultaneously, when pressure rises arrives certain value, float 2 will be rushed forward by air pressure, the lower surface that the float seal circle 5 of float 2 bottoms will withstand negative pressure valve body 1, gap between float 2 and the negative pressure valve body 1 is sealed, pot interior gas must not be discharged, the pot internal gas pressure continues to rise, when the pressure of pot internal gas pressure still is in safety value when following, spring 7 can be with down push-tight of push rod 6, at this moment, can seal because of compressing the formation interference fit between push rod 6 and push rod sealing ring 8 and longitudinal hole 21 threes, thereby the gas in the pot still can not revealed away, when pot inner pressure surpasses the safe pressure value, the pot internal gas pressure can up promote push rod 6, at this moment, push rod sealing ring 8 is in free state, can form matched in clearance between push rod 6 and push rod sealing ring 8 and longitudinal hole 21 threes and leave the gas passage, thereby allow pot interior gas excrete out through longitudinal hole 21, be in safety value when following when draining to pot inner pressure, spring 7 again can be with down push-tight of push rod 6, with longitudinal hole 21 sealings, keep a pot interior safe atmospheric pressure value.Said process carries out repeatedly, thereby makes pressure cooker be in a safe condition down use.
This product structure is simple, and is easy for installation, with low cost, and dependable performance is safe and convenient to use, can be widely used on the pressure cooker as overpressure protection apparatus.
Claims (2)
1. overpressure protection float-controlled valve that is used on the pressure cooker; comprise negative pressure valve body (1); through negative pressure valve body (1) inner and and the negative pressure valve body between be the float (2) of matched in clearance; be placed in the valve seals (3) on negative pressure valve body (1) top; the float seal circle (5) that is used for fixing the valve body nut (4) of negative pressure valve body (1) and is located at float (2) bottom; it is characterized in that: be provided with a longitudinal hole (21) in the described float (2); be provided with a push rod (6) in the described longitudinal hole (21); the middle part of described push rod (6) is provided with a flange (61); the top of described flange (61) is arranged with a spring (7); the bottom of described flange (61) is arranged with a push rod sealing ring (8); between described flange (61) and the described longitudinal hole (21) is matched in clearance; the described push rod sealing ring (8) that is engaged between described push rod (6) and described push rod sealing ring (8) and described longitudinal hole (21) three is matched in clearance when being in free state, is interference fit at described push rod sealing ring (8) when compressing by described spring (7).
2. the overpressure protection float-controlled valve that is used on the pressure cooker according to claim 1 is characterized in that: the bottom that is positioned at described flange (61) on the described push rod (6) is provided with the groove that be used for fixing push rod sealing ring (62) corresponding with described push rod sealing ring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200588272U CN201445341U (en) | 2009-06-19 | 2009-06-19 | Overpressure protection float valve for pressure cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200588272U CN201445341U (en) | 2009-06-19 | 2009-06-19 | Overpressure protection float valve for pressure cooker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201445341U true CN201445341U (en) | 2010-05-05 |
Family
ID=42550053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200588272U Expired - Fee Related CN201445341U (en) | 2009-06-19 | 2009-06-19 | Overpressure protection float valve for pressure cooker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201445341U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106166030A (en) * | 2016-06-06 | 2016-11-30 | 珠海格力电器股份有限公司 | Float-controlled valve, pot cover and pressure cooker |
| CN110507167A (en) * | 2018-05-21 | 2019-11-29 | 佛山市顺德区美的电热电器制造有限公司 | The lid assembly and cooking apparatus of float valve module, cooking apparatus |
-
2009
- 2009-06-19 CN CN2009200588272U patent/CN201445341U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106166030A (en) * | 2016-06-06 | 2016-11-30 | 珠海格力电器股份有限公司 | Float-controlled valve, pot cover and pressure cooker |
| CN110507167A (en) * | 2018-05-21 | 2019-11-29 | 佛山市顺德区美的电热电器制造有限公司 | The lid assembly and cooking apparatus of float valve module, cooking apparatus |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100505 Termination date: 20130619 |