CN101716049B - Pressure-limiting valve with multiple pressure values and pressure pan thereof - Google Patents
Pressure-limiting valve with multiple pressure values and pressure pan thereof Download PDFInfo
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- CN101716049B CN101716049B CN2009102253795A CN200910225379A CN101716049B CN 101716049 B CN101716049 B CN 101716049B CN 2009102253795 A CN2009102253795 A CN 2009102253795A CN 200910225379 A CN200910225379 A CN 200910225379A CN 101716049 B CN101716049 B CN 101716049B
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Abstract
The invention relates to a pressure-limiting valve with multiple pressure values and a pressure pan thereof. A manufacturing method of the pressure-limiting valve with multiple pressure values comprises the following steps of: firstly manufacturing an opening of an exhaust pipe into a trumpet-shaped taper opening with different sections at different heights; then installing multiple seal heads which have different sizes and can seal at the different heights of the trumpet-shaped taper opening on valve core wheel capable of rotating relatively to a valve body; and replacing the plug which is sealed the trumpet-shaped taper opening by a method of rotating the valve core wheel to change the pressure values, thus the pressure-limiting valve has multiple different pressure values. Besides, the pressure-limiting valve has relative lower cost due to a simple structure and is very convenient to use and very easy to accept by the masses.
Description
One, technical field:
The present invention relates to a kind of kitchen articles, especially relevant with the pressure limiting valve of pressure cooker.
Two, background technology:
The cooking pressure of its required the best of different food (temperature) is different.Along with growth in the living standard, people no longer are satisfied with and have existingly had only the pressure cooker of a force value, yet, want to remove cooking with optimal pressure, just must make the pressure limiting valve on the existing pressure cooker have a plurality of variable force value.
Known pressure limiting valve; Be applied to the character of exhaust pipe mouth upward pressure according to it, generally can be divided into two kinds of forms of gravity and elastic force, change the air pressure in the pressure cooker; For the pressure limiting valve of elastic force type; It only need regulate screw simply, the elastic force of spring is increased or reduces, and can realize easily.But, cause the instability of pressure cooker internal gas pressure, even operation irregularity takes place because the elastic force of spring can and use the permanent etc. of date to change because of variation of temperature; Even skilled user, also the elasticity of necessary running check spring just can make pressure limiting valve that force value is accurately arranged roughly.Therefore if make the air pressure in the pressure cooker be subdivided into several pressure stable values, the pressure limiting valve of elastic force type obviously is difficult to accomplish.
Because the pressure limiting valve of gravity type has the force value of accurate and stable, and accepted by popular widely.Therefore the not pressure limiting valve patent of the gravity type of rare a plurality of force value had appearred in recent years; Initial people are with changing the valve body method for quality; Realize the variation of force value; Promptly let each pressure cooker be furnished with a cover heavy mail, can be chosen in as required during use increases or reduces some heavy mails on the pressure limiting valve.Obviously, this pressure limiting valve can have a plurality of pressure stable values, makes also simply, but because the loose mail of mechanism is more, has brought many inconvenience.People just innovate on the size variation of blast pipe bore for this reason, but because design is not very desirable, generally can only be two force value; If increase several force value; Then mechanism can be very complicated, and the difficulty of manufacturing also can be very big, and cost also will rise significantly.Patent 90108043.8 discloses a pressure limiting valve with gravity type of different pressures value; Two different working cross sections that have the first and the 3rd seal receptacle and the second and the 4th seal receptacle to constitute in its valve body; Utilize the flexible of intermediate pin (spool); Realize the conversion in two different chores cross sections, form two different force value.Though this valve body does not have loose mail, its manufacturing process is complicated many, and if increase several pressure stable values, difficulty can be very big.Patent 200520046754.7 disclose one have only two force value pressure limiting valve, this valve body is straight-tube shape, its two ends all can form two different sealing surfaces with the inside and outside bore of exhaust pipe mouth respectively, thereby obtain two different force value.This structure is very simple, and operation also just is end for end easily, but because center of gravity is too high, can influence result of use, and this structure also can only be confined to two force value.
Three, summary of the invention:
Task of the present invention is: provide a kind of simple in structure, easy to manufacture, easy to operate and the pressure limiting valve of the gravity type of a plurality of force value arranged.
In order to solve above-mentioned task, solution of the present invention is: at first with the mouth of pipe of blast pipe, process a horn shape that a different cross section is all arranged at the differing heights place, the present invention claims that this mouth of pipe is a bell; Make several end sockets (the present invention is called end socket) that seals on can the differing heights in bell not of uniform size and then; And then use several spools; With these several end sockets, be connected one to one on the rotating spool wheel (the present invention is called the spool wheel), and make when the spool wheel turns over a week; Each end socket on it; All can be successively individually on position vertically downward, form a sealing surface that is equivalent to the end socket size with bell, obtain a force value.The rotational valve core wheel, just replaceable locational vertically downward end socket, thus change the sealing area between end socket and the bell, realize the change of force value.Make the valve body of constant weight, have a plurality of variable force value.
Obviously, above-mentioned this pressure limiting valve can have several kinds of various structure to change:
The one, with some spools the end socket of same number is connected one to one that the spool wheel is gone up and the pressure limiting valve of processing valve body: the end socket that several are not of uniform size; Be connected one to one on the spool wheel of an annular with spool respectively; Constitute the valve body of an annular; And the installation direction that makes each end socket on the spool wheel all points to the center of gravity of whole annular valve; Then each end socket on the right direction, leaving one respectively is enough to let the active exhaust duct aperture that penetrates of blast pipe, makes each end socket that an exhaust duct aperture corresponding with it all arranged.During use,, and this is chosen the exhaust duct aperture that the other side of end socket institute makes progress, be set on the blast pipe and get final product as long as choose the size of required end socket.Because the end socket that chosen this moment just in time drops in the bell on the blast pipe, form a sealing area that equals this end socket size, produce a force value.If change the force value of pressure limiting valve, then, select end socket again else as long as take down valve body from blast pipe, repeat aforesaid operations and get final product.Because behind the alternative end socket, variation has taken place in the sealing area between end socket and the bell, so variation has also taken place the force value of pressure limiting valve.
Select end socket for ease; Can be on each end socket on the spool wheel or near the end socket etc.; This end socket is made to go up corresponding mark (mark the numbering of this end socket size order, or the data such as force value that produced of this end socket of Direct Mark), so that can find needed end socket rapidly.In order to lift the convenience of valve body, can also on the residing spool wheel location of each end socket, install valve handle simultaneously.Valve handle can be divided into fixing and activity again, if movable, then valve handle can move (also can be regarded as the spool wheel rotates with respect to movable valve handle) on the spool wheel, rests on then above the end socket of being chosen.All right installation positioner between movable valve handle and the spool wheel makes the valve handle that rests on above the end socket of being chosen, and unlikely quilt moves easily.
The 2nd, spool wheel is installed in rotation on the pressure limiting valve of processing a valve body on the heavy mail: this is that the direction of an end socket is no longer pointed to the center of gravity of spool wheel, but points to the valve body of the common center of gravity direction in spool wheel and another heavy mail (the present invention is called heavy mail) associating back.Therefore this valve body is to unite with heavy mail and constitute by installing spool wheel behind the end socket; Its structure and operation principle are also also uncomplicated: with rotating shaft the spool wheel is rotatably installed on the heavy mail, constitutes a valve body, on the position of centre of gravity of valve body; Have exhaust duct aperture vertically downward; And the part wheel limit that makes spool wheel be positioned at exhaust duct aperture directly over, each end socket is connected on the wheel limit of spool wheel with spool one to one, and makes each end socket of installing on the wheel limit; With spool wheel go to exhaust duct aperture directly over the time, the exhaust duct aperture below just in time aiming at vertically downward.If be set to blast pipe on (be blast pipe penetrate exhaust duct aperture) with valve body this moment, so, be positioned at that end socket directly over the exhaust duct aperture, just in time drop in the bell on the blast pipe, forms one with the big or small corresponding to sealing surface of end socket, produce a force value.If change force value; Then as long as take down valve body from blast pipe, the rotational valve core wheel, make the end socket that will select go to exhaust duct aperture directly over; And then valve body is set on the blast pipe; The end socket of new choosing is fallen in the bell on the blast pipe, because the size of each end socket is different, the force value that therefore produces is also different.
Obviously; Thisly unite the valve body that constitutes by spool wheel and heavy mail, if the part wheel limit of spool wheel be positioned at exhaust duct aperture directly over, and make and be installed in the spool wheel and take turns each end socket on the limit; With spool wheel go to exhaust duct aperture directly over the time; Just in time vertically downward, the exhaust duct aperture below aiming at just can have been implemented.Therefore, the spool wheel in the valve body both can vertically be installed, and also can level install or the installation etc. of tilting.
Pressure limiting valve of the present invention, because exhaust pipe mouth is flaring bell, any one different height from suitable for reading to end opening all has a different caliber, so what of the force value number of pressure limiting valve, only is subject to the spool wheel and can holds what of end socket.For a common pressure limiting valve face speech, the diameter of end socket generally only has several millimeters, therefore will make a pressure limiting valve that six or eight force value are arranged, and is not what difficult matter.Again because the replacing of end socket is to adopt method by turns to realize, therefore the structure of this pressure limiting valve is comparatively simple, to make also as easy as rolling off a logly, cost is also relatively low.In addition, the use of pressure limiting valve of the present invention is also very convenient, as long as according to needed force value, rotates bottom spool wheel simply, chooses corresponding with it end socket, and pressure limiting valve is enclosed within valve body on the exhaust pipe mouth as common then.
In sum, though the present invention is a slight pressure limiting valve, it has improved the cooking quality of usual pressure pot greatly, and the class of whole pressure cooker is improved.And because product has catered to consumers in general, so the economic benefit of product also will improve significantly.
Four, description of drawings:
Fig. 1 is first embodiment of the present invention, the pressure limiting valve sketch map of an annular valve.
Fig. 2 is of the present invention second and the 3 two embodiment, two pressure limiting valve sketch mapes that valve handle is installed on annular valve.
Fig. 3 is the 4th embodiment of the present invention, the pressure limiting valve sketch map of an installation activity valve handle on annular valve.
Fig. 4 is the 5th embodiment of the present invention, and the spool wheel vertically is installed on the pressure limiting valve sketch map that constitutes valve body on the heavy mail.
Fig. 5 is the 6th embodiment of the present invention, and spool wheel level is installed on the pressure limiting valve sketch map that constitutes valve body on the heavy mail.
Fig. 6 is the 7th embodiment of the present invention, and the spool wheel tilts to be installed on the pressure limiting valve sketch map that constitutes valve body on the heavy mail.
Fig. 7 is several kinds of variation sketch mapes of the bell on the blast pipe among the present invention.
Five, the specific embodiment:
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further explain:
Like Fig. 1, Fig. 1 is the pressure limiting valve of an annular valve, and the upper end of blast pipe (1) is a flaring exhaust pipe mouth, and the present invention is referred to as bell (2).Because bell (2) is flaring, therefore, all there is a different caliber at the differing heights place in bell (2).When bell (2) and end socket (3) when contacting, can form the sealing surfaces of different sizes because of the diameter of end socket (3).Because the weight of whole valve body (7) is changeless; Therefore; The force value of pressure limiting valve (force value of the present invention is meant the most anticyclonic numerical value that exists in the pressure limiting valve authorized pressure pot) can reduce because of the increase of the sealing area between end socket (3) and the bell (2).Pressure limiting valve among the figure has five end sockets not of uniform size (3) (the present invention is that example is explained with five end sockets) here, therefore has five different force value.As can be seen from the figure, this pressure limiting valve is very simple: before this with five end sockets not of uniform size (2) with spool (4), on the spool of annular wheel (5); The installation of making the internal gear shape one to one (strictly speaking; End socket towards being the center of gravity of pointing to whole valve body), on the direction of each end socket (3) indication, respectively opened an exhaust duct aperture (6) again; Make each end socket (3) that an exhaust duct aperture corresponding with it (6) all arranged, so just processed the valve body (7) of an annular.Its use and existing common pressure limiting valve are convenient equally: take down valve body (7) earlier, and according to by the needed best air pressure of the food of boiling (temperature), rotational valve core wheel (5); Choose corresponding end socket (3), again with this end socket (3) right that exhaust duct aperture (6), as scheming be set on the blast pipe (1); The end socket (3) that chosen this moment; Just in time drop in the bell (2) on the blast pipe (1), formed one, so just accomplished operation corresponding to the force value of being chosen end socket (3).If the change force value then as long as take down valve body again, repeats aforesaid operations and gets final product.
Obviously, resemble the valve body of above-mentioned this annular, can also process dicyclo or three rings even spherical etc. the valve body of a decussation, produce more force value thereby hold more end socket.In addition, this valve body also can be regarded as the little valve body that has the different pressures value by several, does jointly that ring-type or spherical etc. connects to form, and the exhaust duct aperture of these little valve bodies is all pointed to their and connected the common center of gravity in back.Change for this type, the present invention gives an example here no longer one by one.
Among Fig. 1; Doing underlined (8) near the end socket (3) the spool wheel (5), mainly is the row number of the size order of this end socket of mark (3), perhaps the force value that produced of this end socket of Direct Mark (3) etc.; Make and select end socket (3) convenient, needn't do the comparison of size again with other end socket.
Like Fig. 2, Fig. 2 is two pressure limiting valves that valve handle (9) are installed on above-mentioned annular valve (7).Fig. 2-A be one on the back position of each end socket (3), each has installed the pressure limiting valve of a valve handle that can lift separately (9).Fig. 2-B is a pressure limiting valve that two little valve handles on two end sockets (3) back position is closed and lift as a valve handle (9); Because valve body (7) is less; Two fingers can lift valve body (7) from two directions of arrow the figure fully; And also more convenient than the former lifting separately, structure is also more simple.
Like Fig. 3, Fig. 3 is the pressure limiting valve that a movable valve handle (10) has been installed on the annular valve at Fig. 1 (7), and movable valve handle (10) can be taken turns (5) at spool and upward moved, and also can regard spool wheel (5) as and can rotate with respect to movable valve handle (10).As long as movable valve handle (10) is moved on required end socket (3) position, resemble and be enclosed within blast pipe (1) Fig. 3 and go up and get final product during use.Between movable valve handle (10) among the figure and the spool wheel (5) locator (11) being installed, mainly is that movable valve handle (10) can not moved in use easily.Locator among the figure (11) is an example with spring and steel ball, can certainly use spring and wearing piece or directly use spring, even can just design comparatively closely during fabrication, makes it have certain friction and saves locator (11) etc.About the multiple variation of locator, also can't lift to the greatest extent here.
Like Fig. 4, Fig. 4 is that end socket (3) is taken turns a pressure limiting valve making the external gear distribution of shapes on (5) and be furnished with heavy mail at spool.Since end socket (3) towards the center of gravity direction that no longer is spool wheel, therefore this valve body (7) is with regard to many heavy mails (12) (the present invention is referred to as heavy mail) of forming it.The quality of heavy mail (12) is in occupation of the major part of whole valve body (7), and main effect is the balance that guarantees valve body (7).Among the figure, have exhaust duct aperture (6) vertically downward on the position of centre of gravity of valve body (7), spool wheel (5) vertically is installed on the heavy mail (12) through rotating shaft (13), and be positioned at exhaust duct aperture (6) directly over, rotate with respect to heavy mail (12) (13) around the shaft.Because each end socket (3) on the spool wheel (5); All do the distribution of external gear shape, therefore, the end socket (3) on spool wheel (5); When going to the wheel limit of extreme lower position; Just in time be in vertically downward exhaust duct aperture (6) directly over, can with bell (2) sealing on the blast pipe (1) that penetrates in the exhaust duct aperture (6), produces one with end socket (3) force value accordingly.Therefore, the use of this pressure limiting valve is also very convenient, needs only the food according to boiling, and the rotational valve core wheel makes the end socket (3) that will select aim at exhaust duct aperture (6), and then exhaust duct aperture (6) is set on the blast pipe (1).As to change force value, as long as then take down valve body (7), rotational valve core wheel (5) repeats aforesaid operations and gets final product.The locator (11) that do not draw among the figure because spool wheel (5) can be fixedly connected with rotating shaft (13), makes rotating shaft (13) with respect to heavy mail (12) rotation, installation positioner (11) between heavy mail (12) and rotating shaft (13) then.Obviously, the mark (8) of each end socket (3) position on the spool wheel (5) equally also can be labeled on the end face of rotating shaft (13), makes it to stretch out the outside of heavy mail (12), conveniently to watch and to operate.
Also being decorated with on the end socket among Fig. 4 (3) and transferring pouring weight (14) and transfer repeated hole (15), mainly is in order to solve the valve body that some have big end socket (3), because of the centre-of gravity shift problem that causes not of uniform size of end socket (3).Obviously, transfer pouring weight (14) and accent repeated hole (15) also can be used on other position of valve body.But when repeated hole (15) is transferred in design, preferably use light material will transfer repeated hole (15) to fill up, perhaps will transfer the aperture of repeated hole (15) to seal,, influence the balance of valve body to prevent gathering foreign matter because of long-term the use.
Valve handle among Fig. 4 belongs to movable valve handle (10), because spool wheel (5) can rotate to it.
Resembling this pressure limiting valve of Fig. 4, is comparatively desirable a kind of among the present invention: see that from profile it and existing common pressure limiting valve do not have much differences, therefore very easily accepted for masses; See that from manufacturing its critical piece is the spool wheel of a band end socket,, process also more conveniently that so cost is relatively low because the end socket on the spool wheel is made the external gear distribution of shapes; Seeing from use, operate identically with existing pressure limiting valve, is simply valve body to be put on the blast pipe also, and for the selection of force value, also just rotates bottom spool wheel simply, so easy to perform; See that from maintenance it is the samely non-maintaining basically with existing pressure limiting valve, and when cleaning, as long as also back out valve handle (lid shape), promptly available running water is rinsed, and is convenient equally with existing pressure limiting valve well, therefore this pressure limiting valve will have good market prospects.
Except that Fig. 4, this valve body (7) that has heavy mail (12) can also be taken turns the setting angle of (5) and the variation of position because of spool, and the difference of multiple structure is arranged.Because as long as the part of spool wheel (5) wheel limit be positioned at exhaust duct aperture (6) directly over; And make spool wheel (5) take turns each end socket (3) on the limit; Going to when being positioned at directly over the exhaust duct aperture (6); Install vertically downward, then this end socket of installing vertically downward (3) just can seal with the bell (2) on the blast pipe (1) that penetrates in the blast pipe (6), produces one and the corresponding force value of end socket (3).Therefore, make the part wheel limit of spool wheel (5) be positioned at exhaust duct aperture (6) directly over, be design and make the key of this valve body (7), and little with whole spool wheel (5) relation of how placing.Below Fig. 5 and Fig. 6 two such valve bodies of having given an example.
Like Fig. 5, Fig. 5 is that spool wheel (a 5) level is installed on the pressure limiting valve on the heavy mail (12), and screw among the figure (16) is fixed on movable valve handle (10) and rotating shaft (13) on the heavy mail (12); On the position of centre of gravity of valve body (7); Have exhaust duct aperture (6) vertically downward, spool wheel (5) level is installed on a side of heavy mail (12), and spool wheel (5) is near the wheel limit of valve body (7) mid portion; Be positioned at exhaust duct aperture (6) directly over; And make with spool wheel (5) and go to the end socket on the wheel limit that is positioned at directly over the exhaust duct aperture (6), the exhaust duct aperture (6) below aiming at is installed vertically downward; Can seal with the bell (2) on the blast pipe (1) that penetrates in the exhaust duct aperture (6), produce a force value corresponding to end socket (3).If the change force value then as long as rotational valve core is taken turns the end socket on (5) the just replaceable exhaust duct aperture (6), thereby is changed the end socket (3) that seals with bell (2), realize the conversion of force value.End socket among Fig. 5 (3) has been processed sphere, can certainly be cydariform or truncated cone-shaped etc.The mark (8) that shows end socket (3) size among the figure is the opposite that is marked on end socket (3), rather than end socket (3) near, this mainly is that to observe end socket (3) position of place and real work of spool wheel (5) far away.Therefore mark (8) will be looked the structure of valve body with the position of end socket (3) and decide.
Like Fig. 6, Fig. 6 is that a spool wheel tilts to be installed on the pressure limiting valve on the heavy mail (12), is decorated with 6 different force value here.Among the figure, screw (16) and valve casing (17) connect into a valve body (7) with heavy mail (12), rotating shaft (13), spool wheel (5), accent pouring weight (14) etc.On the position of centre of gravity of valve body (7), have exhaust duct aperture (6) vertically downward, spool wheel (5) is installed on a side of heavy mail (12) obliquely; The part wheel limit of spool wheel (5) highest point; Be positioned at exhaust duct aperture (6) directly over, and make each end socket (3) on spool wheel (5) wheel limit, when going to directly over the exhaust duct aperture (6) with spool wheel (5); Do installation vertically downward; Over against the exhaust duct aperture (6) of below, can seal with the bell (2) on the blast pipe (1) that penetrates in the exhaust duct aperture (6), produce a force value corresponding to end socket (3).Likewise, as long as the rotational valve core wheel just can be realized the conversion of force value.
The Fig. 6 here is that implement the oblique below that spool wheel (5) is installed in heavy mail (12), and obviously, spool wheel (5) also can be installed in the oblique upper of heavy mail (12) and implement, if make the wheel limit of the lowest part of spool wheel (5) be positioned at exhaust duct aperture (6) directly over.Because embodiment roughly the same, has no longer detailed here.
Like Fig. 7, Fig. 7 is two kinds of variations of bell (2), and Fig. 7-A is inverted bell (2), and end socket (3) is made for tubulose.Fig. 7-B is step-like bell (2), because approach infinitely when multistage when ladder, promptly becomes aforesaid flaring bell and (2).In addition, the present invention adopts spool (4) that end socket (3) is connected on the spool wheel (5), and certainly, it is first-class also can end socket (3) directly to be welded on spool wheel (5).This type of variation all belongs to protection scope of the present invention.
Claims (9)
1. pressure limiting valve of forming by blast pipe (1) and valve body (7); It is characterized in that: the top of blast pipe (1) has bell (2), and valve body (7) is by spool wheel (5), several end sockets not of uniform size (3), with the spool (4) of end socket (3) same number, constitute with the exhaust duct aperture (6) of end socket (3) same number; Several end sockets not of uniform size (3) are connected in the periphery of spool wheel (5) with the spool (4) of same number one to one; Make each end socket (3) all towards the center of gravity direction of valve body (7); And on the direction of each end socket (3) indication, respectively have one and the corresponding exhaust duct aperture of end socket (3) (6); When spool wheel (5) turns over a week; On it each end socket (3) not of uniform size is together with exhaust duct aperture corresponding with it (6); All can be on the position straight down successively; With bell (2) sealing on the blast pipe (1) that penetrates in the exhaust duct aperture (6), produce one and the corresponding force value of end socket (3); Rotational valve core wheel (5), just replaceable locational straight down end socket (3) and the exhaust duct aperture corresponding with it (6) of being in realizes the conversion of force value.
2. pressure limiting valve according to claim 1 is characterized in that: valve handle (9) is installed on the valve body (7).
3. pressure limiting valve according to claim 1 is characterized in that: movable valve handle (10) is installed on the valve body (7), locator (11) also is installed on the movable valve handle (10).
4. according to claim 1 or 2 or 3 described pressure limiting valves, it is characterized in that: do underlined (8) near the spool wheel (5) the end socket, this mark (8) mark this end socket size order numbering or mark the force value that this end socket produces.
5. pressure limiting valve of forming by blast pipe (1) and valve body (7); It is characterized in that: the top of blast pipe (1) has bell (2), and valve body (7) is by heavy mail (12), rotating shaft (13), spool wheel (5), exhaust duct aperture (6), several end sockets not of uniform size (3), constitute with the spool (4) of end socket (3) same number; On the position of centre of gravity of valve body (7); Have exhaust duct aperture (6) straight down; Spool wheel (5) is rotatably installed on the heavy mail (12) through rotating shaft (13), and make the part of spool wheel (5) take turns the limit be positioned at exhaust duct aperture (6) directly over, several spools (4) are with the end socket not of uniform size (3) of same number; Be connected one to one on the wheel limit of spool wheel (5); And make each end socket (3) on spool wheel (5) the wheel limit, with spool wheel (5) go to successively exhaust duct aperture (6) directly over the time, aim at exhaust duct aperture (6) straight down and install; Can seal with the bell (2) on the blast pipe (1) that penetrates in the exhaust duct aperture (6), produce one and the corresponding force value of end socket (3); Rotational valve core wheel (5), the just replaceable end socket (3) of aiming at exhaust duct aperture (6) is straight down realized the conversion of force value.
6. pressure limiting valve according to claim 5; It is characterized in that: movable valve handle (10) is installed on the valve body (7); On the spool wheel (5) locator (11) is installed; Do underlined (8) near the end socket the spool wheel (5), this mark (8) mark this end socket size order numbering or mark the force value that this end socket produces.
7. according to claim 5 or 6 described pressure limiting valves, it is characterized in that: spool wheel (5) rotatably vertically is installed on the heavy mail (12) through rotating shaft (13), the wheel limit below it be arranged in valve body (7) exhaust duct aperture (6) directly over.
8. according to claim 5 or 6 described pressure limiting valves, it is characterized in that: spool wheel (5) through rotating shaft (13) rotatably level be installed on the side on the heavy mail (12), it is near the wheel limit of valve body (7) centre, be arranged in valve body (7) exhaust duct aperture (6) directly over.
9. according to claim 5 or 6 described pressure limiting valves, it is characterized in that: spool wheel (5) rotatably tilts to be installed on a side of heavy mail (12) through rotating shaft (13), and a part is wherein taken turns the limit, be arranged in valve body (7) exhaust duct aperture (6) directly over.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102253795A CN101716049B (en) | 2009-11-18 | 2009-11-18 | Pressure-limiting valve with multiple pressure values and pressure pan thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102253795A CN101716049B (en) | 2009-11-18 | 2009-11-18 | Pressure-limiting valve with multiple pressure values and pressure pan thereof |
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| Publication Number | Publication Date |
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| CN101716049A CN101716049A (en) | 2010-06-02 |
| CN101716049B true CN101716049B (en) | 2012-06-27 |
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| CN2009102253795A Expired - Fee Related CN101716049B (en) | 2009-11-18 | 2009-11-18 | Pressure-limiting valve with multiple pressure values and pressure pan thereof |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107752750B (en) * | 2016-08-19 | 2021-02-02 | 佛山市顺德区美的电热电器制造有限公司 | Electric cooking device |
| CN108143258B (en) * | 2016-12-05 | 2024-04-02 | 浙江苏泊尔家电制造有限公司 | Cooking utensil |
| CN110870697B (en) * | 2018-08-30 | 2022-05-24 | 佛山市顺德区美的电热电器制造有限公司 | Exhaust valve, pot cover assembly, cooking utensil and exhaust valve core |
| CN109171452A (en) * | 2018-10-26 | 2019-01-11 | 珠海格力电器股份有限公司 | Pressure-limiting exhaust device, pot cover and electric cooker |
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2009
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