CN204813379U - Depression bar formula relief valve for pressure cooker - Google Patents
Depression bar formula relief valve for pressure cooker Download PDFInfo
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- CN204813379U CN204813379U CN201520536365.6U CN201520536365U CN204813379U CN 204813379 U CN204813379 U CN 204813379U CN 201520536365 U CN201520536365 U CN 201520536365U CN 204813379 U CN204813379 U CN 204813379U
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- flap
- shoulder hole
- larger diameter
- valve
- depression bar
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Abstract
The utility model discloses a depression bar formula relief valve for pressure cooker, include: valve body, valve clack, depression bar and valve gap, the processing of valve body center has the shoulder hole, the valve clack is the shutoff stopper of T style of calligraphy structure, and the embedding is assembled inside the shoulder hole of valve body, the great diameter vestibule of the great diameter of valve clack part shutoff shoulder hole promptly, the less diameter vestibule of the less diameter of valve clack part shutoff shoulder hole, the valve gap is fixed in valve body upper end open position, the centre gripping has the depression bar between valve gap and the valve clack, be provided with the pressure release hole with the great diameter vestibule of shoulder hole intercommunication on the valve body, adopt above -mentioned technical scheme the utility model discloses, the depression bar is as main pressure control component, and the depression bar is straight, and the state valve clack forms seal structure with the shoulder hole, depression bar unstability state, then the valve clack again the effect of fluid medium pressure down with the separation of shoulder hole inner wall, and form the route by pressure release hole derivation with fluid medium simultaneously, realize quick pressure release.
Description
Technical field
The utility model relates to a kind of safety device, especially a kind of pressure cooker pressure lever type relief valve.
Background technology
At present, needed for people's life, producing, all kinds of pressure cooker equipment comes into the visual field of people and extensive use.Inner overpressure situation may be there is in the course of the work along with pressure cooker equipment, the safety relief device such as rupture disk or relief valve generally can be installed on pressure cooker equipment and ensure that pressure cooker device security uses.The pressure reducing valve of pressure cooker form used in the market mainly comprises Weight type, meltable plug, spring etc., and the shortcomings such as these pressure reducing valve of pressure cooker ubiquity response speeds are slow, quantity not sufficient of releasing, poor sealing performance, need regular check spring load, and existing pressure release valve device complex structure, processing difficulties.The utility model for some shortcomings of existing pressure reducing valve of pressure cooker, a kind of pressure cooker pressure lever type relief valve of research and design.
Summary of the invention
The utility model is slow for the response speed of former pressure reducing valve of pressure cooker, quantity not sufficient of releasing, poor sealing performance, need regularly to check spring load and apparatus structure is complicated, the shortcomings such as processing difficulties, a kind of pressure cooker pressure lever type relief valve of research and design.
For reaching above object, be achieved through the following technical solutions:
A kind of pressure cooker pressure lever type relief valve, comprising: valve body, flap, depression bar and valve gap;
Valve body center is processed with the shoulder hole of up/down perforation;
Flap is the shutoff plug of longitudinal cross-section T font structure, and embed the shoulder hole being assemblied in valve body inner, namely flap larger diameter portion divides shutoff shoulder hole larger diameter vestibule, flap smaller diameter portion shutoff shoulder hole small diameter vestibule;
Wherein, flap larger diameter part cross section is identical with shoulder hole larger diameter vestibule shape of cross section size, and flap smaller diameter portion is transversal identical with face shoulder hole small diameter vestibule shape of cross section size; Sealing ring is provided with between flap smaller diameter portion and face shoulder hole small diameter bore inner walls;
Valve gap is removably fixed in valve body larger diameter vestibule upper end open position;
Wherein, between valve gap lower surface and flap larger diameter part upper surface, be clamped with depression bar, and valve gap lower surface and flap larger diameter part upper surface are provided with the spacing depression of locating for depression bar;
Wherein, be provided with preloading spring between flap larger diameter part lower surface and shoulder hole larger diameter chamber bottom inwall, and preloading spring one end is stiff end, the other end is free end, namely the inwall of preloading spring one end and flap or valve body is fixed, and the other end is not then fixed as free end; Spring provides valve gap and flap to clamp the pretightning force of depression bar herein;
Valve body is provided with the relief hole be communicated with shoulder hole larger diameter vestibule;
Flap larger diameter part thickness is greater than relief hole diameter, and when depression bar is straightened condition, the complete shutoff relief hole of flap larger diameter part;
Valve gap and valve body for being threaded, and by radial safetied pin locking positioning, also can being selected other detachable fixed forms, such as, directly be bolted, or fixed by snap;
The spacing depression of valve gap lower surface and flap larger diameter part upper surface is the open recess structure that cross section is isosceles triangle, and opening edge width is more than or equal to the radius of shoulder hole larger diameter vestibule, this structure object is to the enough deformation spaces of depression bar, also have a good deformation guiding, and can provide one stable spacing;
Adopt the utility model of technique scheme, valve body lower end (shoulder hole small diameter vestibule end) and pressure cooker are connected and fixed, and fixed form selects common being threaded usually;
In normal conditions, namely device interior pressure is in below the safe pressure that relief valve can bear; Flap smaller diameter portion and shoulder hole small-bore chamber inner wall form hermetically-sealed construction at joint ring, hand over large-diameter portion to divide shutoff relief hole to form secondary seal, instructions for use under meeting viscous medium or having granule medium operating mode again by flap; Depression bar is pressure control valve, and time under nominal situation, depression bar keeps stable (for straightened condition), by depression bar to flap imposed load, will realize sealing effectiveness;
Preloading spring is installed between flap and valve body, after valve gap position is determined, can realize the pretension to depression bar; Now relief valve is in sealing state, and by the effect of depression bar, avoids occurring the phenomenon such as seepage or chatter;
When the safe pressure that device interior pressure can bear higher than relief valve, now the suffered bearing pressure of flap is greater than the buckling pressure of depression bar, (namely deformation can be there is in depression bar occurring instantaneously unstability, in bending), flap axially moves upward at the shoulder hole of valve body, and then flap is separated with shoulder hole, fluid media (medium) is entered by shoulder hole lower end until (namely leakage path is opened) is discharged in the relief hole position of valve body, thus realizes quick, the safety relief of relief valve.
Time below device interior pressure recover to safe pressure, by unloading bottom flange, again can change depression bar, by the pre-installation of spring after re-assemblying, now spacing depression triangular groove design, location installed by auxiliary depression bar, after valve gap is locked again, again realizes relief valve and resets, recover sealing state, convenient to operation, without the need to regular check when relief valve normally works, save use cost.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to technological means of the present utility model can be better understood, and can be implemented according to the content of description, and can become apparent to allow above and other object of the present utility model, feature and advantage, below especially exemplified by preferred embodiment, and coordinate accompanying drawing, be described in detail as follows.
Accompanying drawing explanation
The utility model is totally 4 width accompanying drawings, wherein:
Fig. 1 is cross-sectional view under normal operating conditions of the present utility model.
Fig. 2 is cross-sectional view under pressure release state of the present utility model.
Fig. 3 is normal operating conditions down-pressed pole schematic diagram of the present utility model.
Fig. 4 is pressure release state down-pressed pole schematic diagram of the present utility model.
In figure: 1, valve body, 2, sealing ring, 3, preloading spring, 4, flap, 5, depression bar, 6, safetied pin, 7, valve gap, 8, shoulder hole, 9, spacing depression, 10, relief hole.
Detailed description of the invention
A kind of pressure cooker pressure lever type relief valve as shown in Figure 1, comprising: valve body 1, flap 4, depression bar 5 and valve gap 7;
Valve body 1 center is processed with the shoulder hole 8 of up/down perforation;
Flap 4 is the shutoff plug of longitudinal cross-section T font structure, and embed the shoulder hole 8 being assemblied in valve body 1 inner, namely flap 4 larger diameter portion divides shutoff shoulder hole 8 larger diameter vestibule, flap 4 smaller diameter portion shutoff shoulder hole 8 small diameter vestibule;
Wherein, flap 4 larger diameter part cross section is identical with shoulder hole 8 larger diameter vestibule shape of cross section size, and flap 4 smaller diameter portion is transversal identical with face shoulder hole 8 small diameter vestibule shape of cross section size; Sealing ring 2 is provided with between flap 4 smaller diameter portion and face shoulder hole 8 small diameter bore inner walls;
Valve gap 7 is removably fixed in valve body 1 larger diameter vestibule upper end open position;
Wherein, between valve gap 7 lower surface and flap 4 larger diameter part upper surface, be clamped with depression bar 5, and valve gap 7 lower surface and flap 4 larger diameter part upper surface are provided with the spacing depression 9 of locating for depression bar 5;
Wherein, preloading spring 3 is provided with between flap 4 larger diameter part lower surface and shoulder hole 8 larger diameter chamber bottom inwall, and preloading spring 3 one end is stiff end, the other end is free end, namely the inwall of preloading spring 3 one end and flap 4 or valve body 1 is fixed, and the other end is not then fixed as free end; Spring provides valve gap 7 and flap 4 to clamp the pretightning force of depression bar 5 herein;
Valve body 1 is provided with the relief hole 10 be communicated with shoulder hole 8 larger diameter vestibule;
Flap 4 larger diameter part thickness is greater than relief hole 10 diameter, and when depression bar 5 is straightened condition, the complete shutoff relief hole 10 of flap 4 larger diameter part;
Valve gap 7 and valve body 1 for being threaded, and by radial safetied pin 6 locking positioning, also can being selected other detachable fixed forms, such as, directly be bolted, or fixed by snap;
The spacing depression 9 of valve gap 7 lower surface and flap 4 larger diameter part upper surface is the open recess structure that cross section is isosceles triangle, and opening edge width is more than or equal to the radius of shoulder hole 8 larger diameter vestibule, this structure object is to the enough deformation spaces of depression bar 5, also have a good deformation guiding, and can provide one stable spacing;
Adopt the utility model of technique scheme, valve body 1 lower end (shoulder hole 8 small diameter vestibule end) and pressure cooker are connected and fixed, and fixed form selects common being threaded usually;
As shown in figures 1 and 3, in normal conditions, namely device interior pressure is in below the safe pressure that relief valve can bear; Flap smaller diameter portion and shoulder hole small-bore chamber inner wall form hermetically-sealed construction at joint ring, hand over large-diameter portion to divide shutoff relief hole to form secondary seal, instructions for use under meeting viscous medium or having granule medium operating mode again by flap; Depression bar 5 is pressure control valve, and time under nominal situation, depression bar 5 keeps stable (for straightened condition), by depression bar 5 to flap 4 imposed load, will realize sealing effectiveness;
Preloading spring 3 is installed between flap 4 and valve body 1, after valve gap 7 position is determined, can realize the pretension to depression bar 5; Now relief valve is in sealing state, and passes through the effect of depression bar 5, avoids occurring the phenomenon such as seepage or chatter;
As shown in Figure 2 and Figure 4, when the safe pressure that device interior pressure can bear higher than relief valve, now the suffered bearing pressure of flap 4 is greater than the buckling pressure of depression bar 5, (namely deformation can be there is in depression bar 5 occurring instantaneously unstability, in bending), flap 4 axially moves upward at the shoulder hole 8 of valve body 1, and then flap 4 is separated with shoulder hole 8, fluid media (medium) is entered by shoulder hole 8 lower end until (namely leakage path is opened) is discharged in relief hole 10 position of valve body 1, thus realizes quick, the safety relief of relief valve.
Time below device interior pressure recover to safe pressure, by unloading bottom flange 7, again can change depression bar 5, by the pre-installation of spring 3 after re-assemblying, now spacing depression 9 triangular groove design, location installed by auxiliary depression bar 5, after valve gap 7 is locked again, again realizes relief valve and resets, recover sealing state, convenient to operation, without the need to regular check when relief valve normally works, save use cost.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, although the utility model discloses as above with preferred embodiment, but and be not used to limit the utility model, any those skilled in the art are not departing within the scope of technical solutions of the utility model, when the technology contents that appeal can be utilized to disclose is made a little change or is modified to the Equivalent embodiments of equivalent variations, in every case be the content not departing from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (3)
1. a pressure cooker pressure lever type relief valve, is characterized in that: comprise, valve body (1), flap (4), depression bar (5) and valve gap (7);
Described valve body (1) center is processed with the shoulder hole (8) of up/down perforation;
Described flap (4) is the shutoff plug of longitudinal cross-section T font structure, the shoulder hole (8) that embedding is assemblied in valve body (1) is inner, namely flap (4) larger diameter portion divides shutoff shoulder hole (8) larger diameter vestibule, flap (4) smaller diameter portion shutoff shoulder hole (8) small diameter vestibule;
Wherein, flap (4) larger diameter part cross section is identical with shoulder hole (8) larger diameter vestibule shape of cross section size, and flap (4) smaller diameter portion is transversal identical with face shoulder hole (8) small diameter vestibule shape of cross section size; Sealing ring (2) is provided with between flap (4) smaller diameter portion and face shoulder hole (8) small diameter bore inner walls;
Described valve gap (7) is removably fixed in valve body (1) larger diameter vestibule upper end open position;
Wherein, be clamped with depression bar (5) between valve gap (7) lower surface and flap (4) larger diameter part upper surface, and valve gap (7) lower surface and flap (4) larger diameter part upper surface are provided with the spacing depression (9) of locating for depression bar (5);
Wherein, preloading spring (3) is provided with between flap (4) larger diameter part lower surface and shoulder hole (8) larger diameter chamber bottom inwall, and preloading spring (3) one end is stiff end, the other end is free end;
Described valve body (1) is provided with the relief hole (10) be communicated with shoulder hole (8) larger diameter vestibule;
Described flap (4) larger diameter part thickness is greater than relief hole (10) diameter, and when depression bar (5) is for straightened condition, the complete shutoff relief hole (10) of flap (4) larger diameter part.
2. a kind of pressure cooker pressure lever type relief valve according to claim 1, is characterized in that: described valve gap (7) and valve body (1) for being threaded, and pass through radial safetied pin (6) locking positioning.
3. a kind of pressure cooker pressure lever type relief valve according to claim 1, it is characterized in that: the spacing depression (9) of described valve gap (7) lower surface and flap (4) larger diameter part upper surface is the open recess structure that cross section is isosceles triangle, and opening edge width is more than or equal to the radius of shoulder hole (8) larger diameter vestibule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520536365.6U CN204813379U (en) | 2015-07-22 | 2015-07-22 | Depression bar formula relief valve for pressure cooker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520536365.6U CN204813379U (en) | 2015-07-22 | 2015-07-22 | Depression bar formula relief valve for pressure cooker |
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| Publication Number | Publication Date |
|---|---|
| CN204813379U true CN204813379U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520536365.6U Active CN204813379U (en) | 2015-07-22 | 2015-07-22 | Depression bar formula relief valve for pressure cooker |
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| CN (1) | CN204813379U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706702A (en) * | 2020-06-23 | 2020-09-25 | 广东美的厨房电器制造有限公司 | Pressure valve and cooking device |
-
2015
- 2015-07-22 CN CN201520536365.6U patent/CN204813379U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111706702A (en) * | 2020-06-23 | 2020-09-25 | 广东美的厨房电器制造有限公司 | Pressure valve and cooking device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| CP03 | Change of name, title or address |
Address after: 116620 No. 26, Liaohe East Road, Shuang D port, Dalian economic and Technological Development Zone, Liaoning Patentee after: Dalian Duda technology Safety System Co., Ltd Address before: 116620, No. 26, Liaohe East Road, Shuang D port, Jinzhou New District, Liaoning, Dalian Patentee before: DALIAN LIGONG SAFETY EQUIPMENT Co.,Ltd. |