CN2349469Y

CN2349469Y - Timing cutting off valve for gas range

Info

Publication number: CN2349469Y
Application number: CN 98241656
Authority: CN
Inventors: 姜树友; 姜波
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-10-22
Filing date: 1998-10-22
Publication date: 1999-11-17
Anticipated expiration: 2008-10-22

Abstract

The utility model relates to a gas safety valve, particularly a valve requiring time close when a gas range is used for cooking. A valve body and a matched valve rod arranged in the valve body are connected with the lower end of a timer, wherein, an upper stepped hole, a small cavity and a big cavity which are communicated with each other are arranged in the center of the valve body from top to bottom, the lower end of the big cavity is communicated with a gas inlet hole, and the side face of the small cavity is communicated with a gas outlet hole. The tail end of the valve rod is provided with a valve plate which is positioned in the big cavity, the top end of the valve rod abuts on the outer margin of a cam of the timer, and a compression spring whose both ends respectively abut on the valve rod and the valve body is arranged in the valve body. As a result, the cooking quality and the safe work of gas ranges can be guaranteed.

Description

Timing shut off valve on the gas-cooker

The utility model relates to a kind of safety valves for gas, when especially referring to cook on the gas-cooker, and the valve that need regularly close.

At present, the gas pipeline of gas-cooker maintains combustion gas and exists, as long as twist the kitchen range switch with hand-screw, i.e. combustion gas is lighted in sparking, and gas-cooker just catches fire and cooks or heat up water etc., when needing the gas-cooker burn-out, also needs to screw the kitchen range switch in the other direction with hand, and fire just extinguishes; But, some cooking method (as: boil steaming, stew etc.), heating up water, fry in shallow oil the Chinese medicine length that expends time in, people need keep by gas-cooker for a long time, otherwise are difficult to guarantee the cooking quality and the effect of boiling medicine, as: pot dryouies, food or medicine burn, even breaking out of fire.

In view of this, the purpose of this utility model provides the timing shut off valve on a kind of gas-cooker, and it can borrow timer to make valve rod cut off combustion gas in the gas pipeline automatically on schedule, and gas-cooker is regularly closed.

The purpose of this utility model be achieved in that it be included in regularly valve body that tight lower end connects and in the valve rod that matches, wherein the valve body center is provided with upper shoulder hole, loculus and the big chamber of connection from top to bottom, and be communicated with air admission hole in big lower end, chamber, be communicated with venthole in the loculus side; The end of valve rod is provided with valve plate and is in the big chamber, and its top is against the cam outer rim of timer, is provided with in the upper shoulder hole of valve body again with two ends respectively against the compression spring of valve rod and valve body upper shoulder hole bottom.

Described valve rod is formed by thick section, thin bar section and with the push rod that is threaded in the wide bar section upper end.

Be provided with in the described valve body upper shoulder hole and not only be fixed on the valve body but also be connected sealing cup on the valve rod.

Because adopt such scheme: valve rod can cut off combustion gas on schedule automatically, has guaranteed the gas-cooker work safety, has also guaranteed cooking quality, structure is also simple simultaneously.

Below in conjunction with drawings and Examples the utility model is further specified.

The structural representation of Fig. 1 the utility model exemplary embodiments.

Among the figure: 1, valve body, 11, upper shoulder hole, 12, loculus, 13, big chamber, 14, air admission hole, 15, venthole, 2, valve rod, 21, wide bar section, 22, thin bar section, 23, push rod, 24, valve plate, 3, compressing spring, 4, sealing cup, 5, timer, 51, cam, 52, contact pays, 53, casing.

Present embodiment mainly comprises valve body 1, valve rod 2, compression spring 3, sealing cup 4 and timer 5, as shown in Figure 1, and wherein:

Valve body 1 has upper shoulder hole 11, loculus 12, big chamber 13, air admission hole 14 and venthole 15, wherein, upper shoulder hole 11 is macropore holes on valve body 1 top, has a loculus 12 that is communicated with upper shoulder hole 11 in the middle of the valve body 1, these loculus 12 both sides are communicated with a venthole 15 (or having only side to be communicated with a venthole 15) respectively, and loculus 12 lower ends are communicated with big chamber 13, and these 13 lower ends, big chamber are communicated with air admission hole 14.

Valve rod 2 has wide bar section 21, thin bar section 22, push rod 23 and valve rod 24, and wherein wide bar section 21 sliding fits are in the aperture of the upper shoulder hole 11 of valve body 1; Thin bar section 22 passes aperture, loculus 12 and the big chamber 13 of upper shoulder hole 11; Valve plate 24 (having sealing ring) is connected the end of thin bar section 22 and is in the big chamber 13; Push rod 23 usefulness are threaded in wide bar section 21 upper ends and 52 lower ends are paid against the contact of timer 5 in its top.

Compression spring 3 places in the aperture of upper shoulder hole (11), and its upper end is against wide bar section 21, and the bottom of lower end abutment upper shoulder hole (11).

Sealing cup 4 is fixed in the macropore of upper shoulder hole (11) with its outer shroud, and the base plate of middle bowl is fixed on wide bar section 21 tops of valve rod 2, and valve rod 2 is upper and lower when mobile, by middle bowl (rubber) strain, still keeps valve body 1 end sealing.

Timer 5 is that the spring force with clockwork spring (among the figure not border) is a rotational power, driving cam 51 (being groove shape wheel among the figure) rotates, pay 52 wheel rims that contact cam 51 all the time by the contact of oscillating rod type, belong to prior art, timer 5 is connected valve body 1 top with its casing 53.

In addition, air admission hole 14 is communicated with the admission line of gas-cooker, and each venthole 15 is communicated with gas-cooker one outlet pipe, and this outlet pipe is provided with screws the ignitor switch (not shown).

The present embodiment operation principle:

Opening timing device 5 (stirring timing pointer on demand) at first, cam 51 begin rotation, and it protrudes wheel rim and pay 52 times valve push rods 2 through contact, make valve plate 24 leave loculus 12, compress compression pressing spring 3 simultaneously, and at this moment, combustion gas can enter venthole 15 through air admission hole 14; Then, screw ignitor switch, gas-cooker catches fire; Arrive the scheduled time up to timer 5, the recessed wheel rim (figure further groove) that is cam 51 is paid 52 contacts with contacting, simultaneously under the effect of compression spring 3, make valve rod 2 upwards, so valve plate 24 is closed loculus 12 lower ends, combustion gas can not enter venthole 15 from air admission hole 14, the fire of gas-cooker extinguishes, and closes ignitor switch afterwards, and gas-cooker returns to off position.

Claims

1, the timing shut off valve on a kind of gas-cooker comprises timer (5), it is characterized in that: further comprising the valve body (1) that connects in timer (5) lower end and in the valve rod (2) that matches, wherein valve body (1) center is provided with upper shoulder hole (11), loculus (12) and big chamber (13) of connection from top to bottom, and be communicated with air admission hole (14) in big lower end, chamber (13), be communicated with venthole (15) in loculus (12) side; The end of valve rod (2) is provided with valve plate (24) and is in the big chamber (13), and valve rod (2) top is against the cam outer rim of timer (5), is provided with in the upper shoulder hole (11) of valve body (1) again with two ends respectively against the compression spring (3) of valve rod (2) and valve body (1) upper shoulder hole (11) bottom.

2, by the timing shut off valve on the described gas-cooker of claim 1, it is characterized in that: described valve rod (2) is formed by wide bar section (21), thin bar section (22) and with the push rod (23) that is threaded on the wide bar section (21).

3, by the timing shut off valve on the described gas-cooker of claim 1, it is characterized in that; Be provided with in the upper shoulder hole (11) of described valve body (1) and not only be fixed on the valve body (1) but also be connected sealing cup (4) on the valve rod (2).