CN103711916A - Valve body for gas appliance and gas appliance comprising valve body - Google Patents
Valve body for gas appliance and gas appliance comprising valve body Download PDFInfo
- Publication number
- CN103711916A CN103711916A CN201310741149.0A CN201310741149A CN103711916A CN 103711916 A CN103711916 A CN 103711916A CN 201310741149 A CN201310741149 A CN 201310741149A CN 103711916 A CN103711916 A CN 103711916A
- Authority
- CN
- China
- Prior art keywords
- gas
- valve body
- upper cover
- bimetallic strip
- heating wire
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/002—Actuating devices; Operating means; Releasing devices actuated by temperature variation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention discloses a valve body for a gas appliance and the gas appliance comprising the valve body. The valve body comprises an upper cover, a lower cover and airtight space defined by the upper cover and the lower cover. The upper cover or the lower cover is provided with a gas inlet and a gas outlet. A gas switch assembly is arranged in the airtight space and comprises a bimetallic strip, a heating wire winding the bimetallic strip, and a sealing part capable of being completely coupled with the gas outlet when the sealing part is closed. The sealing part is arranged at one end of the bimetallic strip, and the other end of the bimetallic strip is fixed to the inner wall of the upper cover or the lower cover. The gas switch assembly which is of a 'bimetallic strip-heating wire-sealing part' structure is adopted, a switch of gas can be conveniently controlled, and the valve body is simple in structure and convenient to use. The valve body is good in sealing effect, extremely low in gas leakage amount and capable of reducing potential safety hazards. Control of gas flow can be achieved, and the fire behavior of the gas appliance can be conveniently regulated.
Description
Technical field
The present invention relates to gas-fired equipment field, especially a kind of valve body of controlling burnt gas switch
.
Background technique
In family daily life, generally use gas utensil, it can be time saving and energy saving, easy to use, but also have safe not shortcoming, often because of the leakage of combustion gas cause poisoning, catch fire or explosive accident, therefore adopt safety installations automatically to control burnt gas switch extremely important.
Existing gas utensil gas valve body, the solenoid valves that use as safety control parts more, for example patent CN2779271Y discloses a kind of Household safety control valve for gas range, it is by housing 1, control box 2, mounting plate 3, fuel tube access mouth 4, combustion gas is flowed out mouth 5 and is formed, mounting plate 3 is fixed on the outer wall of housing 1, fuel tube access mouth 4 is located at the bottom of housing 1 outer wall, the bottom at the bottom of mouth 5 is located at 1 of housing is flowed out in combustion gas, solenoid valve 6 on fixing on the top board of housing 1, the soft magnet bottom of solenoid valve 6 connects upper attraction dish 7, cylinder at attraction dish 7 and housing 1 is provided with pressure switch plate 8 at the end, control box 2 is connected by wire 9 with solenoid valve 6, on control box 2 also by wire 9 ' be connected with temperature detect switch (TDS) 10.But this Safety control valve is complex structure not only, and control efficiency is accurate not.
In prior art, also there is the self-suction type electromagnetic valve of use as controlling component, for example patent CN202629222U discloses a kind of self-priming electromagnetism gas stabilized-pressure valve, include valve body, in described valve body, be provided with valve pocket, in described valve pocket, be provided with valve port, on described valve body, be provided with the gas-entered passageway being interconnected with described valve pocket, on described valve body, be provided with the outlet passageway being communicated with described valve port, on described valve body, be provided with the electromagnetic valve component that can control described valve port break-make, between described valve port and outlet passageway, be provided with connecting port, on described connecting port, be provided with and can automatically regulate the self-priming regulator of outlet passageway gas flow according to valve body internal air pressure size.Yet this self-suction type electromagnetic valve requires extremely precision of processing, moreover processing cost is high, and in use must use manual rotation, relatively effort.
In addition, also have the mode of using temperature control magnetic switch to control solenoid valve, for example patent CN2060194U discloses the accident extinguishment of gas stove safety device that a kind of employing consists of temperature control magnetic switch, electromagnetic valve body.But these gas valve bodies all can not facilitate, accurately work, and structure is generally comparatively complicated.
Summary of the invention
The object of the present invention is to provide a kind of gas utensil valve body, the structure that the burnt gas switch assembly of this valve body adopts " bimetallic strip-heating wire-Sealing " to cooperatively interact, it is simple in structure, with low cost, easy to use, and can regulate and control the size of the gas utensil intensity of a fire, gas leakage amount is extremely low.
Another object of the present invention is to provide a kind of gas utensil, and it comprises above-mentioned valve body, and gas utensil can both have been realized the automation of burnt gas switch by the switch of combustion gas in power switch control valve body, and it is simple in structure, with low cost and easy to use, safe.
The invention provides a kind of gas utensil valve body, comprise upper cover, lower cover and by both, enclosed the confined space forming, upper cover or under cover and be provided with fuel gas inlet and gas outlet, in confined space, be provided with burnt gas switch assembly; Wherein, the Sealing that described burnt gas switch assembly comprises bimetallic strip, be wrapped in heating wire on tinsel and can be coupled completely with gas outlet when closed, described Sealing is located at one end of bimetallic strip, and the other end of bimetallic strip is fixed on the inwall of upper cover or lower cover.
Wherein, bimetallic strip also claims thrermostatic bimetal-plate, two-layer expansion coefficient difference, compared with large metal or alloy strong bonded, consists of, and wherein, the layer of material that expansion coefficient is large becomes active layers, and the layer of material that expansion coefficient is low becomes passive layer.After bimetallic strip is heated, because bi-material expansion coefficient is different, the free expansion of active layers material is greater than passive layer, due to two layers of material, strong bonded is together again, cause the free expansion of active layers to be subject to pining down of passive layer and produce outside tension force, passive layer is received the stretching of active layers and is produced introversive pulling force, makes the bimetallic strip of original straight shape form circular arc.When cooling, again because being subject to contrary power to make circular arc be recovered to straight shape.
The working principle of above-mentioned valve body is: during charging, electrothermal wire heating is also heated up, and after being heated, will move downwards by the bimetallic strip of heating wire winding, and the Sealing of drive end leaves the sealing surface of gas outlet, and the air-flow of combustion gas is just unobstructed; During power-off, electric heating wire is not worked, and temperature slowly reduces, and by the backward upper action of the bimetallic strip of heating wire winding cooling, the Sealing of drive end recoils to the former sealing surface of gas outlet.Bimetallic strip is very responsive to heat, temperature, and electrothermal wire heating's temperature is in 50 ℃, and bimetallic strip will move; When therefore valve body is worked, can not produce heat affecting to miscellaneous part.The present invention combines heating wire and bimetallic strip, and this being heated of utilizing bimetallic strip produces displacement and thrust is controlled the opening and closing of the Sealing fitting with gas outlet in gas range, thereby realizes the control of burnt gas switch.
The position of fuel gas inlet, gas outlet does not limit, preferred, is covered with fuel gas inlet under described, is covered with gas outlet on described, corresponding, described bimetallic strip is fixed on the inwall of described upper cover.
The mode that bimetallic strip is fixed on lid does not limit yet, for example, can be fixed on described upper cover by rivet, can be welded on the inwall of described upper cover yet.
Preferably, described Sealing is caulking gum.
For the ease of electric heating wire, be connected with external power supply, the end of electric heating wire sees through described upper cover and extends to the outside of valve body, and adopts terminal encapsulation.
For preventing the cause harmful effect of the overcurrent of heating wire to other component, heating wire that can be described is coated with the braid of insulation.
In order to make the sealability of valve body excellent, prevent the leakage of combustion gas, described upper cover is through the flange encapsulation process that presses.Flange refers at the planar section of blank or the edge of curvature portion, along certain curve, digs the mould-forming method of erectting straight flange.Press and refer to that the effect at pressure makes metal generation plastic deformation and is linked together, compare with traditional welding technique, there is quality more controlled and avoid advantage such as weldering wound etc.
Preferably, between described upper cover and described lower cover, utilize rubber ring to seal.
The present invention can also further adopt following measure, in each joint, carries out encapsulation process, such as the terminal of fuel gas inlet, gas outlet, electric heating wire and fixedly the places such as rivet of bimetallic strip all with sealer, carry out encapsulation process.After processing by an above-mentioned sequence seal approach, valve seal excellent performance of the present invention, the amount of leakage of combustion gas is extremely low, reduces potential safety hazard.
The structure that above-mentioned burnt gas switch assembly adopts " bimetallic strip-heating wire-Sealing " to cooperatively interact, makes valve body can realize the effect of automatic control burnt gas switch.Further, the present invention also provides a kind of gas utensil valve body, comprise upper cover, lower cover and by both, enclosed the confined space forming, upper cover or under cover and be provided with fuel gas inlet and more than 2 gas outlets, in confined space, be provided with 2 the above burnt gas switch assemblies corresponding with gas outlet, each burnt gas switch assembly is controlled separately; Wherein, the Sealing that described burnt gas switch assembly comprises bimetallic strip, be wrapped in heating wire on tinsel and can be coupled completely with gas outlet when closed, described Sealing is located at one end of bimetallic strip, and the other end of bimetallic strip is fixed on the inwall of upper cover or lower cover.A plurality of gas outlets are set on valve body, and the burnt gas switch assembly of a plurality of correspondences is set, each burnt gas switch assembly is controlled separately.By controlling the switch situation of different gas outlets, thereby can control the uninterrupted of combustion gas, user can regulate and control the intensity of a fire size of gas utensil easily.For example, can same upper cover or under cover the described burnt gas switch assembly arranging more than 2, during ABAP Adapter, a switch is controlled burnt gas switch assembly described in one of them.
A gas utensil, comprises above-mentioned valve body, and its fuel gas inlet is connected with the pipeline of combustion gas is provided, and its gas outlet is connected with firing chamber, and described electric heating wire is connected with external power supply by switch.
Beneficial effect of the present invention has:
1, adopt the burnt gas switch assembly of " bimetallic strip-heating wire-Sealing ", can control easily the switch of combustion gas, valve body structure is simple, easy to use;
2, valve body adopts the structure of upper cover, lower cover engaging, and upper cover is carried out to the flange seal approach such as processings, and fitted seal rubber ring that press, and makes valve seal respond well, and gas leakage amount is extremely low, minimizing potential safety hazard;
3, during the burnt gas switch assembly of a plurality of when arranging " bimetallic strip-heating wire-Sealings ", can realize the control to gas flow, regulate and control easily the intensity of a fire size of gas utensil.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Accompanying drawing explanation
Fig. 1 is the structural representation of analysing and observe of valve body for gas utensil of the present invention.
Fig. 2 is the structural representation of looking up of valve body for gas utensil of the present invention.
In figure, 1-upper cover, 2-lower cover, 3-fuel gas inlet, 4-gas outlet, 5-burnt gas switch assembly, 6-rubber ring; 51-bimetallic strip, 52-heating wire, 53-Sealing, 54-terminal, 55-rivet.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further details.
the valve body of the single burnt gas switch assembly of embodiment 1
As shown in Figure 1 and Figure 2, gas utensil valve body of the present invention, comprise upper cover 1, lower cover 2 and by both, enclosed the confined space forming, at upper cover 1, be provided with gas outlet 4, lower cover 2 is provided with fuel gas inlet 3, also comprise the burnt gas switch assembly 5 in confined space, the Sealing 53 that described burnt gas switch assembly 5 comprises bimetallic strip 51, be wrapped in heating wire 52 on bimetallic strip 51 and can be coupled completely with gas outlet 4 when closed, Sealing 53 is arranged on the end of bimetallic strip 51, and bimetallic strip 51 is fixed on the inwall of upper cover 1.
Wherein, bimetallic strip also claims thrermostatic bimetal-plate, two-layer expansion coefficient difference, compared with large metal or alloy strong bonded, consists of, and wherein, the layer of material that expansion coefficient is large becomes active layers, and the layer of material that expansion coefficient is low becomes passive layer.After bimetallic strip is heated, because bi-material expansion coefficient is different, the free expansion of active layers material is greater than passive layer, due to two layers of material, strong bonded is together again, cause the free expansion of active layers to receive that pining down of passive layer produces outside tension force, passive layer is received the stretching of active layers and is produced introversive pulling force, makes the bimetallic strip of original straight shape form circular arc.When cooling, again because being subject to contrary power to make circular arc be recovered to straight shape.
In this enforcement, described Sealing 53 is caulking gums.Adopt rivet 55 bimetallic strip 51 to be fixed on to the inwall of institute's upper cover 1.In fact, the mode that bimetallic strip 51 is fixed on valve body does not limit yet, and can be welded on the inwall of described upper cover 1 yet.For the ease of electric heating wire 52, be connected with external power supply, the end of electric heating wire 52 adopts terminal 54 plastic packagings and sees through the outside that described upper cover 1 extends to valve body.
The working principle of above-mentioned valve body is: during charging, electric heating wire 52 generates heat and heats up, and after the bimetallic strip 51 being wound around is heated, will move downwards by electric heating wire 52, and the Sealing 53 of drive end leaves the sealing surface of gas outlet 4, and the air-flow of combustion gas is just unobstructed; During power-off, electric heating wire 52 is not worked, and temperature slowly reduces, the backward upper action of bimetallic strip 51 cooling being wound around by electric heating wire 52, and the Sealing 53 of drive end recoils to the former sealing surface of gas outlet 4.51 pairs of heats of bimetallic strip, temperature are very responsive, and electric heating wire 52 heating temperatures are more than room temperature, in 50 ℃, and bimetallic strip will move; When therefore valve body is worked, can not produce heat affecting to miscellaneous part.The present invention combines heating wire, and this being heated of utilizing bimetallic strip produces displacement and thrust is controlled the opening and closing of the Sealing fitting with gas outlet in gas range, thereby realizes the control of burnt gas switch.
For effectively preventing the cause harmful effect of the overcurrent of heating wire 52 to other component, adopt the coated described heating wire 51 of insulation braid.
In order to make the sealability of valve body excellent, prevent the leakage of combustion gas, in this enforcements, described upper cover 1 carries out the flange encapsulation process that presses, and at upper cover 1 and lower cover 2 employing rubber rings 6, seals.In this enforcement, also in each joint, carry out encapsulation process, such as the terminal at fuel gas inlet, gas outlet, electric heating wire and fixedly the place such as rivet of bimetallic strip use sealer to seal.Wherein, flange refers at the planar section of blank or the edge of curvature portion, along certain curve, digs the mould-forming method of erectting straight flange.Press and refer to that the effect at pressure makes metal generation plastic deformation and is linked together, compare with traditional welding technique, there is quality more controlled and avoid advantage such as weldering wound etc.After processing by above-mentioned seal approach, valve seal excellent performance of the present invention, the amount of leakage of combustion gas is extremely low, reduces potential safety hazard.
the valve body of embodiment's burnt gas switch more than 2 assembly
Gas utensil in the present embodiment is substantially the same manner as Example 1 with valve body.Difference is: valve body is provided with three gas outlets, and correspondence is provided with three burnt gas switch assemblies.The structure that burnt gas switch assembly adopts " bimetallic strip-heating wire-Sealing " to cooperatively interact, makes valve body can realize the effect of automatic control burnt gas switch.
In the present embodiment, three gas outlets are set on valve body, and three corresponding burnt gas switch assemblies are set, each burnt gas switch assembly is controlled separately.By controlling the switch situation of different gas outlets, thereby can control the uninterrupted of combustion gas, user can regulate and control the intensity of a fire size of gas utensil easily.
Above disclosed is only the preferred embodiments of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to the present patent application the scope of the claims, still belongs to the scope that the present invention is contained.
Claims (10)
1. a gas utensil valve body, is characterized in that: comprise upper cover, lower cover and by both, enclosed the confined space forming, upper cover or under cover and be provided with fuel gas inlet and gas outlet, in confined space, be provided with burnt gas switch assembly; Wherein, the Sealing that described burnt gas switch assembly comprises bimetallic strip, be wrapped in heating wire on tinsel and can be coupled completely with gas outlet when closed, described Sealing is located at one end of bimetallic strip, and the other end of bimetallic strip is fixed on the inwall of upper cover or lower cover.
2. valve body according to claim 1, is characterized in that: under described, be covered with fuel gas inlet, be covered with gas outlet on described, described bimetallic strip is fixed on the inwall of described upper cover.
3. valve body according to claim 2, is characterized in that: bimetallic strip is fixed on described upper cover by rivet or is welded on the inwall of described upper cover.
4. according to the valve body described in any one in claims 1 to 3, it is characterized in that: described Sealing is caulking gum.
5. valve body according to claim 2, is characterized in that: the end of electric heating wire sees through described upper cover and extends to the outside of valve body, and adopts terminal encapsulation.
6. valve body according to claim 1, is characterized in that: described heating wire is coated with the braid of insulation.
7. valve body according to claim 1, is characterized in that: described upper cover is through the flange encapsulation process that presses.
8. valve body according to claim 1, is characterized in that: between described upper cover and described lower cover, utilize rubber ring to seal
.
9. a gas utensil valve body, it is characterized in that: comprise upper cover, lower cover and by both, enclosed the confined space forming, upper cover or under cover and be provided with fuel gas inlet and more than 2 gas outlets, in confined space, be provided with 2 the above burnt gas switch assemblies corresponding with gas outlet, each burnt gas switch assembly is controlled separately; Wherein, the Sealing that described burnt gas switch assembly comprises bimetallic strip, be wrapped in heating wire on tinsel and can be coupled completely with gas outlet when closed, described Sealing is located at one end of bimetallic strip, and the other end of bimetallic strip is fixed on the inwall of upper cover or lower cover.
10. a gas utensil, comprises according to the valve body described in any one in claim 1 to 9, and its fuel gas inlet is connected with the pipeline of combustion gas is provided, and its gas outlet is connected with firing chamber, and described electric heating wire is connected with external power supply by switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310741149.0A CN103711916A (en) | 2013-12-30 | 2013-12-30 | Valve body for gas appliance and gas appliance comprising valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310741149.0A CN103711916A (en) | 2013-12-30 | 2013-12-30 | Valve body for gas appliance and gas appliance comprising valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103711916A true CN103711916A (en) | 2014-04-09 |
Family
ID=50405140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310741149.0A Pending CN103711916A (en) | 2013-12-30 | 2013-12-30 | Valve body for gas appliance and gas appliance comprising valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103711916A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667686A (en) * | 2019-02-28 | 2019-04-23 | 严格 | A kind of oil gas automatically switches gas valve composite structure and switching method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3735750A (en) * | 1970-02-13 | 1973-05-29 | Siemens Elektrogeraete Gmbh | Baking and roasting oven |
| CN2060194U (en) * | 1989-12-06 | 1990-08-08 | 杨福鸿 | Safety device for accidental flameout of gas range |
| CN2577734Y (en) * | 2002-09-25 | 2003-10-08 | 周衍增 | High-precisive temperature controllers |
| CN2779271Y (en) * | 2004-11-30 | 2006-05-10 | 乔蓬勃 | Household safety control valve for gas range |
| CN202629222U (en) * | 2012-03-31 | 2012-12-26 | 郭悦锋 | Self-suction electromagnetic gas pressure stabilizing valve |
| CN103438223A (en) * | 2013-08-30 | 2013-12-11 | 宁波万安股份有限公司 | Thermosensitive combustible gas control valve |
-
2013
- 2013-12-30 CN CN201310741149.0A patent/CN103711916A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3735750A (en) * | 1970-02-13 | 1973-05-29 | Siemens Elektrogeraete Gmbh | Baking and roasting oven |
| CN2060194U (en) * | 1989-12-06 | 1990-08-08 | 杨福鸿 | Safety device for accidental flameout of gas range |
| CN2577734Y (en) * | 2002-09-25 | 2003-10-08 | 周衍增 | High-precisive temperature controllers |
| CN2779271Y (en) * | 2004-11-30 | 2006-05-10 | 乔蓬勃 | Household safety control valve for gas range |
| CN202629222U (en) * | 2012-03-31 | 2012-12-26 | 郭悦锋 | Self-suction electromagnetic gas pressure stabilizing valve |
| CN103438223A (en) * | 2013-08-30 | 2013-12-11 | 宁波万安股份有限公司 | Thermosensitive combustible gas control valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109667686A (en) * | 2019-02-28 | 2019-04-23 | 严格 | A kind of oil gas automatically switches gas valve composite structure and switching method |
| CN109667686B (en) * | 2019-02-28 | 2023-09-08 | 严格 | Oil-gas automatic switching gas valve combined structure and switching method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204617884U (en) | Electric pressure cooker | |
| CN203847805U (en) | Waterproof and oil-proof electromagnetic valve | |
| CN204427790U (en) | Steam valve and cooking apparatus | |
| CN204445487U (en) | Steam valve and cooking apparatus | |
| CN205824297U (en) | Air-source water heater charge valve | |
| CN103711916A (en) | Valve body for gas appliance and gas appliance comprising valve body | |
| CN201363427Y (en) | Electromagnetic valve | |
| CN206361224U (en) | A kind of combustion gas safety control valve | |
| CN110332345A (en) | Motor water-proof valve assembly mechanism | |
| CN212842877U (en) | Sintering equipment for intelligent manufacturing | |
| CN104676077A (en) | Normally-open electromagnetic valve with piston structure | |
| CN204427791U (en) | Steam valve and electric cooker | |
| CN203363367U (en) | Direct flow closed type electromagnetic valve | |
| CN209892788U (en) | Two-position three-way direct-acting pneumatic control valve | |
| CN201739518U (en) | Gas-seal poppet valve | |
| CN202659910U (en) | Three-way constant-temperature temperature control valve | |
| CN204663648U (en) | Motor wax formula thermoregulator | |
| CN105736775A (en) | Pipeline fuel gas safe self-closing valve | |
| CN207229768U (en) | Poppet | |
| CN202653942U (en) | Liquid heater | |
| CN203051914U (en) | Electromagnetic valve for roasting furnace gas control | |
| CN205246302U (en) | Oily formula current transformer sealing performance's verifying attachment | |
| CN213938369U (en) | Electromagnetic induction heating structure | |
| CN103705108A (en) | Delayed pressure-maintaining internal shutoff device for electric pressure cooker | |
| CN209819567U (en) | Hole opening device for flue or reactor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140409 |