CN102225004B - Signal output device of heating container - Google Patents
Signal output device of heating container Download PDFInfo
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- CN102225004B CN102225004B CN 201110113215 CN201110113215A CN102225004B CN 102225004 B CN102225004 B CN 102225004B CN 201110113215 CN201110113215 CN 201110113215 CN 201110113215 A CN201110113215 A CN 201110113215A CN 102225004 B CN102225004 B CN 102225004B
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- heating container
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Abstract
The invention relates to a signal output device of a heating container. The device comprises a hollow shell with one open end, a curve-type pipe with one open end and a signal generating device; the shell is provided with an air outlet and an interface which is communicated with a pressure relief hole; the air outlet and the opening of the curve-type pipe are communicated and are in hermetic seal; the interface is provided with a pressure relief valve; and the sealed end of the curve-type pipe drives the signal generating device. Because the structure is adopted, the shell is communicated with the inner cavity of the heating container, the pressure in the heating container enters into the shell and the curve-type pipe, under the effect of the pressure, the curve-type pipe performs straightening movement, the sealed end of the curve-type pipe drives the signal generating device, and the signal generating device outputs signals to a control device of the heating container; the curve-type pipe is ageing-resistant and has long service life; and the defects of reduction in sealing performance and reduction in accuracy rate in the prior art are overcome.
Description
Technical field
The present invention relates to the device that a kind of heating container is used, especially a kind of signal generation output device.
Background technology
Present prior art, application for a patent for invention number: 201010550695.2, invention and created name: the pressure sensor that a kind of electric pressure cooking saucepan is used, it comprises having under shed cylinder barrel, piston, compression spring and potentiometer; Piston and cylinder barrel are slidably matched and the liquid hermetic seal, and compression spring one end coordinates with piston, the other end coordinates with the top board of cylinder barrel; On the cylinder barrel arm, pilot hole is arranged, actuating arm is connected with piston and stretches out pilot hole, and actuating arm drives potentiometer, and the cylinder barrel wall between piston and cylinder barrel top board has limit relief hole.Existing problems are: along with use, spring is aging, and piston and cylinder barrel sealing property descend, and have reduced accuracy rate.
Summary of the invention
The objective of the invention is: a kind of signal output apparatus of heating container is provided, and it is high that it has accuracy rate, the characteristics of long service life.
The present invention is achieved in that a kind of signal output apparatus of heating container, comprises the housing of the hollow of an end opening, shaped form pipe and the signal generation apparatus of an end opening;
One gas outlet and an interface that is communicated with relief hole are arranged on described housing, and open communication and the hermetic seal of gas outlet and shaped form pipe have relief valve on interface; The blind end driving signal generator of described shaped form pipe.
The signal output apparatus of described a kind of heating container, its special character is: also comprise a transmission device, described transmission device comprises a connecting rod, actuating arm, sector gear, gear shaft, bedplate and cover plate;
The lower semiaxis of gear shaft and bedplate pivot joint, upper semiaxis and cover plate pivot joint, sector gear is fixedly connected with actuating arm, actuating arm and bedplate pivot joint, the blind end pivot joint of connecting rod and actuating arm and shaped form pipe; The upper semiaxis of gear shaft coordinates with signal generation apparatus; Driving lever is arranged on actuating arm, and driving lever drives relief valve.
The signal output apparatus of described a kind of heating container, its special character is: described transmission device also comprises a volute spring, the volute spring center-side is fixedly connected with the lower semiaxis of gear shaft, the other end is fixedly connected with bedplate.
The signal output apparatus of described a kind of heating container, its special character is: described relief valve comprises valve seat, spool, valve rod and spring, the interface on valve seat and relief hole is with being threaded; Spring is arranged on valve rod, and spring one end coordinates with spool, the end of other end valve seat coordinates, and spool coordinates with relief hole; Valve rod and valve seat are slidably matched and stretch out valve seat; The pilot hole that one drive rod passes on valve seat is fixedly connected with valve rod; Driving lever coordinates with drive rod;
Also comprise a rubber sleeve, the drive rod cover is arranged on rubber sleeve;
Rubber sleeve is arranged on valve seat, and the drive rod cover is corresponding with pilot hole, and the position that drive rod is positioned at outside valve seat is arranged on the drive rod cover.
The signal output apparatus of described a kind of heating container, its special character is: described relief valve comprises valve seat, spool, valve rod and spring, the interface on valve seat and relief hole is with being threaded; Spring is arranged on valve rod, and spring one end coordinates with spool, the end of other end valve seat coordinates, and spool coordinates with relief hole; Valve rod and valve seat are slidably matched and stretch out valve seat.
The signal output apparatus of described a kind of heating container, its special character is: drain tank is vertically arranged on the valve cavity wall of described valve seat, and drain tank communicates with valve pocket.
The signal output apparatus of described a kind of heating container, its special character is: the guide holder with centre bore is arranged on described valve seat, and the interface on guide holder and relief hole removably connects, and valve rod and centre bore are slidably matched, drain tank is arranged on guide holder, and drain tank is communicated with centre bore.
The signal output apparatus of described a kind of heating container, its special character is: the pilot hole that a drive rod passes on valve seat is fixedly connected with valve rod; Driving lever coordinates with drive rod;
Also comprise a rubber sleeve, the drive rod cover is arranged on rubber sleeve;
Rubber sleeve is arranged on valve seat, and the drive rod cover is corresponding with pilot hole, and the position that drive rod is positioned at outside valve seat is arranged on the drive rod cover.
The signal output apparatus of described a kind of heating container, its special character is: described signal generation apparatus is a rotary code switch, rotary code switch coordinates with the upper semiaxis of gear shaft.
The signal output apparatus of described a kind of heating container, its special character is: described signal generation apparatus is a rotating potentiometer, rotating potentiometer coordinates with the upper semiaxis of gear shaft.
The signal output apparatus of described a kind of heating container, its special character is: described signal generation apparatus is a rotary encoder.
The signal output apparatus of described a kind of heating container, its special character is: described shaped form pipe semicircular in shape, class " C " shape, helix dish type or helically coiled.
The signal output apparatus of described a kind of heating container, its special character is: the blind end of described shaped form pipe is provided with the contact of two series connection, also comprises two resistor discs, and contact and resistor disc are slidably matched; The shape of resistor disc is identical with the movement locus of the blind end of shaped form pipe.
The signal output apparatus of described a kind of heating container, its special character is: also comprise a shell, described shell comprises drain pan and seal cover, drain pan is screwed with seal cover and is connected;
The lower end of housing stretch out drain pan base plate and with the base plate liquid sealing, valve seat is fixedly connected with the side plate of drain pan by a fastening swivel nut, valve rod stretches out from fastening swivel nut; Also be provided with electric connection on drain pan.
The signal output apparatus of a kind of heating container of the present invention, owing to adopting such structure, housing and heating container intracavity inter-connection, pressure in heating container enters housing and shaped form pipe, under pressure, the shaped form pipe can stretch motion, the blind end driving signal generator of shaped form pipe, and signal generation apparatus outputs signal to the control device of heating container; The shaped form pipe is ageing-resistant, long service life; Overcome in prior art, sealing property descends, and reduces the defective of accuracy rate.
Description of drawings
Fig. 1 is one of three-dimensional exploded view of the present invention.
Fig. 2 is two of three-dimensional exploded view of the present invention.
Fig. 3 is stereogram of the present invention.
Fig. 4 is partial perspective view of the present invention.
Fig. 5 is the stereogram of the position relationship of shaped form pipe of the present invention, transmission device and relief valve.
Fig. 6 is the stereogram of housing of the present invention.
Fig. 7 is the cutaway view of relief valve of the present invention.
Fig. 7-1st, the three-dimensional cutaway view of valve seat of the present invention.
Fig. 7-2nd, the cutaway view of the fastening swivel nut of the present invention.
Fig. 8 is one of three-dimensional exploded view of rotating potentiometer of the present invention.
Fig. 9 be rotating potentiometer of the present invention three-dimensional exploded view two.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, a kind of signal output apparatus of heating container comprises the housing 2 of the hollow of shell 1, an end opening, shaped form pipe 3 and the signal generation apparatus 4 of an end opening; Described shell 1 comprises drain pan 11 and seal cover 12, and drain pan 11 is screwed with seal cover 12 and is connected.
As shown in Figure 6, a gas outlet 21 and a relief hole are arranged on described housing 2, an interface 22 is arranged on relief hole; As Fig. 2, shown in Figure 5, open communication and the hermetic seal of gas outlet 21 and shaped form pipe 3 have relief valve 5 on interface 22; The blind end driving signal generator 4 of described shaped form pipe 3; Described shaped form pipe is circular arc.
Described shaped form pipe 3 can semicircular in shape, class " C " shape, helix dish type or helically coiled.
Also comprise a transmission device, described transmission device comprises a connecting rod 61, actuating arm 62, sector gear 63, gear shaft 64, bedplate 65 and cover plate 66;
The lower semiaxis of gear shaft 64 and bedplate 65 pivot joints, upper semiaxis and cover plate 66 pivot joints, sector gear 63 is fixedly connected with actuating arm 62, as Fig. 2, shown in Figure 5, actuating arm 62 is by an axle 621 and bedplate 65 pivot joints, the blind end pivot joint of connecting rod 61 and actuating arm 62 and shaped form pipe 3; The upper semiaxis of gear shaft 64 coordinates with signal generation apparatus 4; Driving lever 622 is arranged on actuating arm 62, and driving lever 622 drives relief valve 5.
As shown in Figure 1 and Figure 2, bedplate 65 is fixedly connected with cover plate 66 by two support columns 651.Bedplate 65 is screwed with housing 2 and is connected.Signal generation apparatus 4 arranges on cover plate 66, and a fixed head 68 is screwed on housing 2, and signal generation apparatus 4 is fixedly connected with fixed head 68.
Described transmission device also comprises a volute spring 67, and volute spring 67 center-side are fixedly connected with the lower semiaxis of gear shaft 64, the other end is fixedly connected with bedplate 65.
As Fig. 4, shown in Figure 7, described relief valve 5 comprises valve seat 51, spool 52, valve rod 53 and spring 54, and spring 54 is arranged on valve rod 53, and spring 54 1 ends coordinate with spool 52, the end of other end valve seat 51 coordinates, as shown in Figure 7, spool 52 coordinates with relief hole 23; Valve rod 53 is slidably matched and stretches out valve seat 51 with valve seat 51.Valve rod 53 stretches out valve seat 511, can adopt manual pressure release, and valve rod 53 stretches out valve seat 511 and is connected with a lever 57, also can adopt manual pressure release.
Described spool 52 is tapered, also can be cylindricality.
As shown in Fig. 7, Fig. 7-1, guide holder 511 with centre bore 512 is arranged on described valve seat 51, guide holder 511 is threaded with interface 22 use on relief hole, valve rod 53 is slidably matched and guarantees that valve rod 53 moves along straight line with centre bore 512, drain tank 513 is arranged on guide holder 511, and drain tank 513 is communicated with centre bore 512.The end of spring 54 coordinates with the end of guide holder 511.
The valve pocket that can be also valve rod 53 and valve seat 51 directly is slidably matched and guarantees that valve rod moves along straight line; Drain tank is vertically arranged on the valve cavity wall of described valve seat 51, and drain tank communicates with valve pocket.
Described relief valve 5 also comprises a drive rod 55 and rubber sleeve 56; The pilot hole 514 that drive rod 55 passes on valve seat 51 is fixedly connected with valve rod 53; Driving lever 622 on actuating arm 62 coordinates with drive rod 55;
As Fig. 4, shown in Figure 5, drive rod cover 561 is arranged on rubber sleeve 56
As Fig. 3, Fig. 4, Fig. 5, shown in Figure 7,
The lower end of housing 2 stretch out drain pan 11 base plate and with the base plate liquid sealing, also be provided with electric connection 13 on drain pan 11; The opening of housing 2 lower ends is communicated with heating container.
As shown in Figure 7, be provided with slow pressure pad 8 on the under shed of housing 2, the diameter of the passage on slow pressure pad 8 is less than the diameter of the under shed of housing 2.
Described signal generation apparatus 4 is a rotating potentiometer 7,
As Fig. 8, shown in Figure 9, rotating potentiometer 7 coordinates with the upper semiaxis of gear shaft 64.Described potentiometer comprises end rotating disk 71 and takes over a business 72, end rotating disk 71 with take over a business 72 pivot joints, end rotating disk 71 is fixedly connected with the upper semiaxis of gear shaft 64; The first contact 711 and the second contact 712 are arranged on end rotating disk 71;
Take over a business interior annular electro resistance body 721 is arranged on 72, middle ring wire 722; The first contact 711 coordinates with interior annular electro resistance body 721, and the second contact 712 coordinates with middle ring wire 722.Export one group of data.
Also have the 3rd contact 713 on end rotating disk 71, take over a business to also have on 72 outer shroud resistive element 723, the three contacts 713 to coordinate with outer shroud resistive element 723.Adopt such structure, can export second group of data.
Described signal generation apparatus 4 is a rotary code switch, and rotary volume switch coordinates with the upper semiaxis of gear shaft 64.Described rotary code switch is contact code switch or contactless code switch.
Described signal generation apparatus 4 can be also a rotary encoder, and described rotary encoder is contact encoder or contactless code device.
The blind end of described shaped form pipe 3 is provided with the contact of two series connection, also comprises two resistor discs, and contact and resistor disc are slidably matched; The shape of resistor disc is identical with the movement locus of the blind end of shaped form pipe.Or resistor disc and a wire, contact and resistor disc and wire are slidably matched.
Above-described is only preferential embodiment of the present invention.Should be pointed out that for the person of ordinary skill of the art, in the situation that do not break away from the principle of the invention, can also make some improvement and modification, this also is considered as protection scope of the present invention.
Claims (15)
1. the signal output apparatus of a heating container, comprise the housing of the hollow of an end opening, shaped form pipe and the signal generation apparatus of an end opening;
One gas outlet and an interface that is communicated with relief hole are arranged on described housing, and open communication and the hermetic seal of gas outlet and shaped form pipe have relief valve on interface; The blind end driving signal generator of described shaped form pipe; Also comprise a transmission device, described transmission device comprises a connecting rod, actuating arm, sector gear, gear shaft, bedplate and cover plate;
The lower semiaxis of gear shaft and bedplate pivot joint, upper semiaxis and cover plate pivot joint, sector gear is fixedly connected with actuating arm, actuating arm and bedplate pivot joint, the blind end pivot joint of connecting rod and actuating arm and shaped form pipe; The upper semiaxis of gear shaft coordinates with signal generation apparatus;
It is characterized in that: described relief valve comprises valve seat, spool, valve rod and spring, and the interface on valve seat and relief hole is with being threaded; Spring is arranged on valve rod, and spring one end coordinates with spool, the other end coordinates with the end of valve seat, and spool coordinates with relief hole; Valve rod and valve seat are slidably matched and stretch out valve seat; The pilot hole that one drive rod passes on valve seat is fixedly connected with valve rod; Driving lever is arranged on actuating arm, and driving lever coordinates with drive rod;
Also comprise a rubber sleeve, the drive rod cover is arranged on rubber sleeve;
Rubber sleeve is arranged on valve seat, and the drive rod cover is corresponding with pilot hole, and the position that drive rod is positioned at outside valve seat is arranged on the drive rod cover.
2. the signal output apparatus of a kind of heating container claimed in claim 1, it is characterized in that: described signal generation apparatus is a rotary code switch, rotary code switch coordinates with the upper semiaxis of gear shaft;
Or described signal generation apparatus is a rotating potentiometer, and rotating potentiometer coordinates with the upper semiaxis of gear shaft;
Or described signal generation apparatus is a rotary encoder.
3. the signal output apparatus of a heating container, comprise the housing of the hollow of an end opening, shaped form pipe and the signal generation apparatus of an end opening;
One gas outlet and an interface that is communicated with relief hole are arranged on described housing, and open communication and the hermetic seal of gas outlet and shaped form pipe have relief valve on interface; The blind end driving signal generator of described shaped form pipe;
Also comprise a transmission device, described transmission device comprises a connecting rod, actuating arm, sector gear, gear shaft, bedplate and cover plate;
The lower semiaxis of gear shaft and bedplate pivot joint, upper semiaxis and cover plate pivot joint, sector gear is fixedly connected with actuating arm, actuating arm and bedplate pivot joint, the blind end pivot joint of connecting rod and actuating arm and shaped form pipe; The upper semiaxis of gear shaft coordinates with signal generation apparatus; Described transmission device also comprises a volute spring, and the volute spring center-side is fixedly connected with the lower semiaxis of gear shaft, the other end is fixedly connected with bedplate;
Described relief valve comprises valve seat, spool, valve rod and spring, and the interface on valve seat and relief hole is with being threaded; Spring is arranged on valve rod, and spring one end coordinates with spool, the other end coordinates with the end of valve seat, and spool coordinates with relief hole; Valve rod and valve seat are slidably matched and stretch out valve seat; It is characterized in that: drain tank is vertically arranged on the valve cavity wall of described valve seat, and drain tank communicates with valve pocket.
4. the signal output apparatus of a kind of heating container according to claim 3, it is characterized in that: the pilot hole that a drive rod passes on valve seat is fixedly connected with valve rod; Driving lever is arranged on actuating arm, and driving lever coordinates with drive rod.
5. the signal output apparatus of a kind of heating container according to claim 4, is characterized in that: also comprise a rubber sleeve, the drive rod cover is arranged on rubber sleeve;
Rubber sleeve is arranged on valve seat, and the drive rod cover is corresponding with pilot hole, and the position that drive rod is positioned at outside valve seat is arranged on the drive rod cover.
6. the signal output apparatus of a kind of heating container according to claim 3, it is characterized in that: described signal generation apparatus is a rotary code switch, rotary code switch coordinates with the upper semiaxis of gear shaft;
Or described signal generation apparatus is a rotating potentiometer, and rotating potentiometer coordinates with the upper semiaxis of gear shaft;
Or described signal generation apparatus is a rotary encoder.
7. the signal output apparatus of a kind of heating container according to claim 3, is characterized in that: described shaped form pipe semicircular in shape, class " C " shape, helix dish type or helically coiled.
8. the signal output apparatus of a kind of heating container according to claim 3, it is characterized in that: also comprise a shell, described shell comprises drain pan and seal cover, drain pan is screwed with seal cover and is connected;
The lower end of housing stretch out drain pan base plate and with the base plate liquid sealing, valve seat is fixedly connected with the side plate of drain pan by a fastening swivel nut, valve rod stretches out from fastening swivel nut; Also be provided with electric connection on drain pan.
9. the signal output apparatus of a heating container, comprise the housing of the hollow of an end opening, shaped form pipe and the signal generation apparatus of an end opening;
One gas outlet and an interface that is communicated with relief hole are arranged on described housing, and open communication and the hermetic seal of gas outlet and shaped form pipe have relief valve on interface; The blind end driving signal generator of described shaped form pipe; It is characterized in that: the blind end of described shaped form pipe is provided with the contact of two series connection, also comprises two resistor discs, and contact and resistor disc are slidably matched; The shape of resistor disc is identical with the movement locus of the blind end of shaped form pipe.
10. the signal output apparatus of a heating container, comprise the housing of the hollow of an end opening, shaped form pipe and the signal generation apparatus of an end opening;
One gas outlet and an interface that is communicated with relief hole are arranged on described housing, and open communication and the hermetic seal of gas outlet and shaped form pipe have relief valve on interface; The blind end driving signal generator of described shaped form pipe;
Also comprise a transmission device, described transmission device comprises a connecting rod, actuating arm, sector gear, gear shaft, bedplate and cover plate;
The lower semiaxis of gear shaft and bedplate pivot joint, upper semiaxis and cover plate pivot joint, sector gear is fixedly connected with actuating arm, actuating arm and bedplate pivot joint, the blind end pivot joint of connecting rod and actuating arm and shaped form pipe; The upper semiaxis of gear shaft coordinates with signal generation apparatus; Described transmission device also comprises a volute spring, and the volute spring center-side is fixedly connected with the lower semiaxis of gear shaft, the other end is fixedly connected with bedplate;
Described relief valve comprises valve seat, spool, valve rod and spring, and the interface on valve seat and relief hole is with being threaded; Spring is arranged on valve rod, and spring one end coordinates with spool, the other end coordinates with the end of valve seat, and spool coordinates with relief hole; Valve rod and valve seat are slidably matched and stretch out valve seat; It is characterized in that: the guide holder with centre bore is arranged on described valve seat, and the interface on guide holder and relief hole removably connects, and valve rod and centre bore are slidably matched, and drain tank is arranged on guide holder, and drain tank is communicated with centre bore.
11. the signal output apparatus of a kind of heating container according to claim 10 is characterized in that: the pilot hole that a drive rod passes on valve seat is fixedly connected with valve rod; Driving lever is arranged on actuating arm, and driving lever coordinates with drive rod.
12. the signal output apparatus of a kind of heating container according to claim 11 is characterized in that: also comprise a rubber sleeve, the drive rod cover is arranged on rubber sleeve;
Rubber sleeve is arranged on valve seat, and the drive rod cover is corresponding with pilot hole, and the position that drive rod is positioned at outside valve seat is arranged on the drive rod cover.
13. the signal output apparatus of a kind of heating container according to claim 10 is characterized in that: described signal generation apparatus is a rotary code switch, and rotary code switch coordinates with the upper semiaxis of gear shaft;
Or described signal generation apparatus is a rotating potentiometer, and rotating potentiometer coordinates with the upper semiaxis of gear shaft;
Or described signal generation apparatus is a rotary encoder.
14. the signal output apparatus of a kind of heating container according to claim 10 is characterized in that: described shaped form pipe semicircular in shape, class " C " shape, helix dish type or helically coiled.
15. the signal output apparatus of a kind of heating container according to claim 10 is characterized in that: also comprise a shell, described shell comprises drain pan and seal cover, and drain pan is screwed with seal cover and is connected;
The lower end of housing stretch out drain pan base plate and with the base plate liquid sealing, valve seat is fixedly connected with the side plate of drain pan by a fastening swivel nut, valve rod stretches out from fastening swivel nut; Also be provided with electric connection on drain pan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110113215 CN102225004B (en) | 2011-04-11 | 2011-04-26 | Signal output device of heating container |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110093581.4 | 2011-04-11 | ||
| CN201110093581 | 2011-04-11 | ||
| CN 201110113215 CN102225004B (en) | 2011-04-11 | 2011-04-26 | Signal output device of heating container |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102225004A CN102225004A (en) | 2011-10-26 |
| CN102225004B true CN102225004B (en) | 2013-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110113215 Expired - Fee Related CN102225004B (en) | 2011-04-11 | 2011-04-26 | Signal output device of heating container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102225004B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB814305A (en) * | 1955-12-20 | 1959-06-03 | Kenneth Watson | Improvements in or relating to electrical regulating apparatus, particularly for regulating temperatures and pressures |
| CN2288432Y (en) * | 1997-03-13 | 1998-08-19 | 罗瑞杨 | Magnetic induction pressure sensor |
| CN1626860A (en) * | 2003-12-10 | 2005-06-15 | 胡龙 | Pressure release valve in electric water heater |
| CN2793478Y (en) * | 2005-05-13 | 2006-07-05 | 姚玉虎 | Pressure gage style atmospheric relief valve |
| CN101545555A (en) * | 2008-03-27 | 2009-09-30 | 浙江三花汽车控制系统有限公司 | Pressure control valve for controlling opening degree of valve core through utilization of sensing element and refrigeration system |
| CN201664198U (en) * | 2010-02-25 | 2010-12-08 | 佛山拓世电子科技有限公司 | Electric pressure cooker |
-
2011
- 2011-04-26 CN CN 201110113215 patent/CN102225004B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB814305A (en) * | 1955-12-20 | 1959-06-03 | Kenneth Watson | Improvements in or relating to electrical regulating apparatus, particularly for regulating temperatures and pressures |
| CN2288432Y (en) * | 1997-03-13 | 1998-08-19 | 罗瑞杨 | Magnetic induction pressure sensor |
| CN1626860A (en) * | 2003-12-10 | 2005-06-15 | 胡龙 | Pressure release valve in electric water heater |
| CN2793478Y (en) * | 2005-05-13 | 2006-07-05 | 姚玉虎 | Pressure gage style atmospheric relief valve |
| CN101545555A (en) * | 2008-03-27 | 2009-09-30 | 浙江三花汽车控制系统有限公司 | Pressure control valve for controlling opening degree of valve core through utilization of sensing element and refrigeration system |
| CN201664198U (en) * | 2010-02-25 | 2010-12-08 | 佛山拓世电子科技有限公司 | Electric pressure cooker |
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| Publication number | Publication date |
|---|---|
| CN102225004A (en) | 2011-10-26 |
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