CN1112532C

CN1112532C - Control valve of high-pressure automatic steam pot

Info

Publication number: CN1112532C
Application number: CN 98112572
Authority: CN
Inventors: 伍斌强; 伍尚魁
Original assignee: XUNDA GROUP CO Ltd HU'NAN PROV
Current assignee: Xunda Technology Group Co Ltd
Priority date: 1998-07-31
Filing date: 1998-07-31
Publication date: 2003-06-25
Anticipated expiration: 2018-07-31
Also published as: AU3023099A; WO2000008392A1; CN1243689A

Abstract

The present invention relates to a control valve for an automatic high pressure cooker stove. The control valve comprises a fuel gas control part, a steam control portion and an electronic control part; a membrane is clamped between a valve cover and a valve body; a cavity is arranged between the valve cover and the membrane; the upper end of a valve rod leans to the membrane; the valve cover is provided with a hole channel for communicating the cavity with the exterior of the valve body; the side surface of the valve rod is provided with a push rod; the upper end of the push rod leans to the head of the valve rod; the lower end leans to a reed of a microswitch; a nozzle, a band switch and a conducting wire plug board are respectively arranged on the valve body. The control valve has the advantages of compact structure, reliable use, flexible control and strong applicability, and can be used as the control valve of a cooking range of the pressure cooker.

Description

Control valve of high-pressure automatic steam pot

Technical field:

The present invention relates to the control valve of gas cooker, particularly control the gas cooker control valve that the high pressure steam pot is used.

Background technique:

Now pressure cooker uses morely in people's the cooking apparatus, is that family or catering industry are all generally used, but at present for the control of this type of pressure cooker by pressing valve gap to realize, but can not arbitrarily adjust, can not adjust basically.In pressure cooker authorized pressure scope, the user will adjust pressure and can only carry out from conversion pressure limiting valve gap weight, and this is impossible to all ordinary persons.Because only be equipped with a pressure limiting valve gap when pressure cooker dispatches from the factory.This wants to select different pressures for use by difference cooking article and cooking method to cooking person, and it is impossible obtaining best cooking effect and saving combustion gas.

Summary of the invention:

The object of the present invention is to provide a kind of control valve of high-pressure automatic steam pot.

Task of the present invention is finished as follows: control valve of high-pressure automatic steam pot, valve rod is inserted in the hole of valve body, diaphragm is installed between valve gap and the valve body, cavity k is arranged between valve gap and the diaphragm, valve gap has duct d to be communicated with cavity k and valve is interlinked to the outside, the valve rod upper end leans diaphragm, slit m is arranged between valve rod small end and the valve body inner bore, O shape snare is on valve rod, the valve rod lower end radially has low baking temperature hole b axially having vent cap a, low baking temperature hole b is connected with air vent a, spring housing is sleeved on the valve rod lower end, spring one end leans on spring housing, the other end leans on another spring housing, pressure adjusting lever is contained in the valve body hole, and its upper end leans at the spring housing end face, and the spring housing perisporium has vent c, sensitive switch is fixed in the valve body, selector is fixed on and covers, and cam is sleeved on the axle head of selector, and the line trap plate is fixed on the valve body, regulator plate is fixed on the valve body, sensitive switch is fixed on the regulator plate, and push rod is contained in the respective aperture of stem side valve body, and spring housing is contained on the bar of push rod, its two ends lean top club head and valve body respectively, the push rod upper end leans valve rod upper end bar head, and the lower end leans on the reed of sensitive switch, and nozzle is contained on the valve body.The opposite side that valve rod is relative with the push rod position is equipped with balancing pole in the respective aperture of valve body, and the balancing pole upper end leans valve rod upper end head, and spring housing is contained on the bar of balancing pole, and its two ends lean balance club head and valve body respectively.

The present invention has compact structure, uses reliable, as to utilize pressure kettle ejection vapor pressure regulating and controlling gas cooker fuel gas supply, stepping control is flexible, optional strong, be applicable to that people select the various cooking method food different with the cooking for use, keep in the inherent pressure of setting of the pot of also being convenient to keep-up pressure relatively stable, to safety and energy-conservation good effect arranged all.Be applicable to the control valve of pressure cooker kitchen range for cooking.

Description of drawings

Fig. 1 structural front view of the present invention

Fig. 2 is Fig. 1 left view

Fig. 3 is Figure 1A-A sectional view

Fig. 4 is the worm's eye view of Fig. 1

Fig. 5 is Fig. 4 C-C sectional view

Fig. 6 is valve rod lower end and the spring housing partial structurtes enlarged diagram of Fig. 1

Embodiment

Below in conjunction with accompanying drawing this control valve structure is described in further detail:

This control valve structure roughly can be divided into combustion gas control section, steam control section and electronic control part.The combustion gas control section mainly is made up of part electromagnetic valve 26, O shape circle 25, valve body 5, valve rod 8, O shape circle 9, nozzle 11.The steam control section mainly is made up of part valve gap 7, valve body 5, diaphragm 6, valve rod 8, O shape circle 9, spring cup 10, spring 12, spring housing 13, O shape circle 14, pressure adjusting screw 15.Electronic control part mainly is made up of part selector 3, cam 4, locking nut 1, lid 2, valve body 5, sensitive switch 19, sensitive switch 27, line trap plate 29, push rod 23, spring 22, O shape circle 20, pad 21.

Screw 28 is fixed on sensitive switch 27 in the valve body 5.Locking nut 1 is fixed on selector 3 and covers on 2.Cam 4 is sleeved on the axle head of selector 3, and lid 2 is packed into together with selector 3 and cam 4 in the valve body 5.Line trap plate 29 is fixed on the valve body 5.O shape circle 9 is enclosed within on the valve rod 8.The lower end diameter of valve rod 8 is littler than the upper end, and valve rod 8 lower end centre bits are equipped with a vent cap a who axially opens, and valve rod 8 has the low baking temperature hole b that radially opens and communicates with vent cap a at vent cap a blind hole end.Spring 22, pad 21, O shape circle 20 are enclosed within the hole of the valve body 5 of together packing on the push rod 23.Spring 30 is enclosed within the hole of the valve body 5 of together packing on the balancing pole 24.Valve body 8 inserts in valve body 5 holes.Diaphragm 6 is packed in the cavity of valve gap 7, and is contained on the valve body 5 together with valve gap 7.The hole d that connects pressure kettle is arranged on the valve gap 7.The cavity of valve gap 7 and diaphragm 6 form cavity k.The lower end of valve rod 8 and valve body 5 endoporus have slit m.Valve rod 8 upper end heads lean diaphragm 6.Pack into the lower end of valve rod 8 of spring housing 10, spring 12 1 ends are enclosed within on the spring housing 10, and the other end is enclosed within on another spring housing 13.The perisporium of spring housing 10 has vent c.Seal ring 14 is enclosed within the circular groove of pressure adjusting lever 15, and the tip of adjustable lever 15 withstands in the hole of spring housing 13.Nozzle 11 is screwedly mounted in the valve body 5 corresponding screws.O shape circle 25 is packed in the valve body 5, and solenoid valve 26 is contained on the valve body 5.Seal ring 25 withstands the end face of the hole n in the valve body 5 on the solenoid valve 26.Sensitive switch 19 usefulness screws 18 are fixed on the regulator plate 17, and regulator plate 17 usefulness screws 16 are fixed on the valve body 5, and the lower end of push rod 23 withstands on the reed of sensitive switch 19.

Using process: the rotating shaft of selector 3 rotates counterclockwise an angle to the selected function place, selector 3 drives cam 4 simultaneously and also turns over same angle, sensitive switch 27 actions are signaled, solenoid valve 26 energising actions, seal ring on the solenoid valve 26 leaves duct n end face, and this moment, blast tube was opened, and combustion gas enters through duct n, slit m, vent c from duct e and enters nozzle 11, enter burner combustion by nozzle 11 ejections, pressure kettle is heated.After producing steam in the pressure kettle, steam imports this valve valve gap 7 by conduit, enter cavity k through advancing steam duct d, continuous rising along with pressure, the elastic force that diaphragm 6 overcomes spring 12 promotes valve rod 8 actions, after vapor pressure reaches a setting value (not being higher than the pressure kettle pressure limiting valve opening pressure), and O shape circle 9 contact valve bodies 5 inner conical surfaces on the valve rod 8, cut off duct n and communicate with slit m, combustion gas this moment can only enter nozzle through low baking temperature hole b and vent cap a.It is minimum that the burner firepower reduces to, and the pressure kettle internal pressure no longer raises, and push rod 23 pushes away sensitive switch 19 actuating signals, and electronic control part enters timing.The pressure and temperature that the burner low baking temperature can be kept in the pot usually is stable.After pot inner pressure reduced, valve rod 8 was return under spring 2 effects, has seal ring 9 to leave the valve body 5 endoporus conical surfaces on the valve rod 8, combustion gas can enter nozzle through slit m again, has increased the burner firepower, and pressure kettle pressure can go up again, thereby keep pot inner pressure, temperature is relatively stable.Limit case is when the pressure kettle internal pressure increases, and the pressure-limit valve action of pot is no more than safety pressure to keep pot inner pressure.The general employing turned down the setting pressure of this valve, so this situation can not occur.When reaching predefined program control during the time, electronic control part signals and makes the solenoid valve outage, closes blast tube, finishes gastronomical process automatically.After accident extinguishing and kettle temperature surpassed the highest setting value, electronic control part all can make the closed electromagnetic valve fuel gas path, plays the safety protection effect.

This valve is by controlling the break-make and the size variation of fuel gas pipeline automatically from electronic control signal and pressure cooker vapor pressure signal, it adapts to people and selects different cooking methods, and the gas cooker accident extinguishing is had protective action.

Claims

1, a kind of control valve of high-pressure automatic steam pot, it is characterized in that valve rod (8) is inserted in the hole of valve body (5), diaphragm (6) is installed between valve gap (7) and the valve body (5), between valve gap (7) and the diaphragm (6) cavity k is arranged, it is outer identical with valve that valve gap (7) has duct d to be communicated with cavity k, valve rod (8) upper end leans diaphragm (6), between valve rod (8) small end and valve body (5) endoporus slit m is arranged, O shape circle (9) is enclosed within on the valve rod (8), valve rod (8) lower end is axially having vent cap a, radially have low baking temperature hole b, low baking temperature hole b is connected with air vent a, spring housing (10) is sleeved on valve rod (8) lower end, spring (12) one ends lean on spring housing (10), the other end leans on another spring housing (13), pressure adjusting lever (15) is contained in valve body (5) hole, its upper end leans at spring housing (13) end face, spring housing (10) perisporium has vent c, sensitive switch (27) is fixed in the valve body (5), selector (3) is fixed on the lid (2), cam (4) is sleeved on the axle head of selector (3), line trap plate (29) is fixed on the valve body (5), regulator plate (17) is fixed on the valve body (5), sensitive switch (19) is fixed on the regulator plate (17), push rod (23) is contained in the respective aperture of valve rod (8) side valve body (5), spring (20) is sleeved on the bar of push rod (23), and its two ends lean push rod (23) bar head and valve body (5) respectively, and push rod (23) upper end leans valve rod (8) upper end bar head, the lower end leans on the reed of sensitive switch (19), and nozzle (11) is contained on the valve body (5).

2, according to the described control valve of claim 1, it is characterized in that valve rod (8) opposite side relative with push rod (23) position is equipped with balancing pole (24) in the respective aperture of valve body (5), balancing pole (24) upper end leans valve rod (8) upper end head, spring (30) is sleeved on the bar of balancing pole (24), and its two ends lean balancing pole (24) bar head and valve body (5) respectively.