CN2353995Y

CN2353995Y - Timed gas-valve

Info

Publication number: CN2353995Y
Application number: CN 98218574
Authority: CN
Inventors: 李铁城
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-08-26
Filing date: 1998-08-26
Publication date: 1999-12-15
Anticipated expiration: 2008-08-26

Abstract

The utility model relates to a timed gas-valve belonging to the valve device in a pipeline. The timed gas-valve is mainly composed of a shell, a valve body, a push rod, a timer, a film and a driving mechanism, wherein, the valve body, a valve rod, the timer, the film and the driving mechanism are all positioned in the shell, and the panel of the timer and a regulating knob are positioned on the surface of the shell; the valve body is arranged inside with a gas inlet passage and a gas outlet passage, which are communicated through a film cavity, and the film is positioned in the film cavity; one end of the push rod has a contact with the film, the other end has a contact with the driving mechanism out of the valve body, and the driving mechanism has a contact with a driving component arranged in the timer. The utility model has the advantages of simple structure and convenient operation, and can be closed on time.

Description

Timing air valve

The utility model is the valve that a kind of timing is closed, and belongs to the valving in the pipeline.

At present; the liquefied petroleum gas (LPG) of China, artificial coal gas and rock gas have been widely used in people's lives; and relevant therewith various gas range are also brought in constant renewal in the replacement; from cast iron posture kitchen range to stainless steel disc type kitchen range; to automatic igniting, the gas range of a new generation has also increased flame-out protection device, when making the gas cooker accident extinguishing from the manual firing; automatically close gas, further guaranteed to use gas safety.A new generation's gas range beautiful shape, easy to use.Be that old gas range or the existing problem of gas range of new generation is: all do not have regularly to close the device of gas, therefore in use still have hidden danger.For example: some people has forgotten the food of boiling on the kitchen range once busy, and especially the elderly is forgetful, more is prone to this situation, gently then burnt food, burns out cooker, and is heavy then cause fire.

The purpose of this utility model is a kind of timing air valve of design, and it is simple in structure, can regularly close combustion gas, improves the safety in utilization of gas range.

The designed timing air valve of the utility model is mainly by shell, valve body, push rod, timer, diaphragm and driving mechanism are formed, valve body, valve rod, timer, diaphragm and driving mechanism all are positioned at housing, the dial plate and the adjusting knob of timer are positioned at case surface, valve body is fixedly installed in the shell, wherein have gas-entered passageway and outlet passageway, link up by diaphragm chamber between two passages, diaphragm is arranged in the inlet of the gas-entered passageway of diaphragm chamber, the unlatching spring is installed between diaphragm and inlet, the valve body of diaphragm top has through hole, push rod is arranged in through hole, one end of push rod contacts with diaphragm, the outer driving mechanism of the other end and valve body contacts, and the driving mechanism push rod of can tending to act moves, and driving mechanism contacts with the parts of tending to act in the timer.

The driving mechanism of the timing air valve that the utility model is designed is made of fixed rotating shaft, drive link, valve rod and extension spring, fixed rotating shaft is fixedly installed on the valve body, one end of drive link is connected with fixed rotating shaft, have through hole on the drive link, be threaded in the through hole, have outside thread on the valve rod, valve rod cooperates installation with through hole, by nut check, the lower end of valve rod contacts with push rod, one end and the drive link of extension spring are fixed, and the other end is fixedlyed connected with valve body, and the other end of drive link contacts with the parts of tending to act of timer.

The parts of tending to act of the timer in the designed timing air valve of the utility model are dwang and rotating disk, rotating disk is fixedly installed on the dwang, have breach on the rotating disk, rotating disk contacts with drive link in the driving mechanism, and the adjusting knob of timer can drive dwang and regularly rotate.

The position of the valve rod in the designed timing air valve of the utility model can be regulated by the nut that matches with it.

Fixed rotating shaft in the driving mechanism of the timing air valve that the utility model is designed and extension spring lay respectively at the both sides of valve rod.

Also have tutorial light in the designed timing air valve of the utility model, tutorial light provides power supply by battery.

Diaphragm in the designed timing air valve of the utility model is beneficial to sealing for the dish made by oil resistant rubber or the diaphragm or the inflatable membrane for being made by oil resistant rubber of dish type.

For preventing gas leakage, the diaphragm bottom in the designed timing air valve of the utility model has the seal convexity ring.

Diaphragm in the designed timing air valve of the utility model can be substituted by metal poppet valve core or metal semi-round ball spool.

The designed timing air valve of the utility model is installed on the front end of delivery line when mounted, and delivery line is communicated with the gas-entered passageway of valve body in the timing air valve, and the outlet passageway of valve body is communicated with the admission line of kitchen range in the timing air valve.When using, turn the adjusting knob of timer earlier, predetermined service time, this moment, the dwang and the rotating disk of timer rotated an angle, drive link in the driving mechanism contacts with rotating disk, and the breach on the rotating disk leaves point of contact at this moment, and drive link lifts, the drive valve rod lifts, extension spring stretches, and under the effect of the unlatching spring of diaphragm bottom, diaphragm and push rod raise, diaphragm chamber is linked up gas-entered passageway and outlet passageway, can open the gas igniting this moment.Tutorial light is bright in timing air valve, the conducting of expression gas, the normal use.After reaching the scheduled time, the breach of the rotating disk in the timer just moves to and the contacted point of contact of drive link place, under the effect of extension spring, this end of drive link sinks to being positioned at breach rapidly, drives valve rod and presses down, and push rod is moved down, diaphragm is pressed down, overcome the elastic force of opening spring, diaphragm is sealed up gas-entered passageway, cut off gas channel.This moment, tutorial light went out the combustion gas auto extinguishing.After treating timing next time, could be with the gas conducting.

The advantage of the timing air valve that the utility model is designed is:

1. simple in structure, regularly close, easy to use, have the tutorial light prompting.

2. gas tightness is good, guarantees safe in utilizationly, prevents accident.Take dish or disc seal diaphragm structure, and diaphragm bottom and gas-entered passageway mouth contact position have the seal convexity ring, strengthened sealability.

3. be the mechanical type transmission all, need not electric power and tend to act that both safety was saved the energy again.

The designed timing air valve of the utility model is applicable on the various gas range, can also be installed to other gets on the gas product, so that regularly turn-off, as: gas water-heater installs timing air valve additional can avoid using the hot water overlong time, and water heater produces excess carbon dioxide, carbon monoxide and causes anoxic even gas poisoning.Timing air valve also can be installed by hospital on the oxygen therapy facility, to some patient's timing oxygen supply, in the same way, because the timing air valve oil resistant is corrosion-resistant, encapsulation is good, long service life, and relevant regularly product, equipment, the setting of conveying gas can generally be installed and used.

Fig. 1 is the structural drawing of the designed timing air valve of the utility model.

Fig. 2 is the plan view of Fig. 1.

Fig. 3 is the side view of Fig. 1.

Fig. 4 is the half sectional view of diaphragm among Fig. 1.

Fig. 5 is the dial plate schematic representation of Fig. 1.

Fig. 6 is the structural drawing of several diaphragms, spool in addition in the designed timing air valve of the utility model.

In conjunction with specific embodiments the structure and the mode of execution of the designed timing air valve of the utility model is described further with reference to the accompanying drawings below.

Embodiment 1

Timing air valve as shown in Figure 1, 2, 3 mainly is made up of shell 1, valve body 2, push rod 3, timer 4, diaphragm 5 and driving mechanism 6, and the dial plate 24 of timer 4 and adjusting knob 28 are positioned at the surface of shell 1, as shown in Figure 5.The parts of tending to act of valve body 2, push rod 3, timer 4, diaphragm 5 and driving mechanism 6 are positioned at shell 1.Valve body 2 is fixedly installed in the housing 1.Have on the valve body 2 between gas-entered passageway 7, outlet passageway 8, two passages and link up by diaphragm chamber 9.Diaphragm 5 is arranged in the inlet of diaphragm chamber 9 gas-entered passageways 7.Be equipped with between diaphragm 5 bottoms and the inlet and open spring 10.Diaphragm 5 is dish as shown in Figure 4, is made by nitrile butadiene rubber, and the bottom of diaphragm 5 has seal convexity ring 11, to strengthen sealing effect.Have through hole 12 on the valve body above the diaphragm 52, push rod 3 is installed in the through hole 12.The axis of through hole 12 is consistent with the axis of gas-entered passageway 7.The lower end of push rod 3 contacts with diaphragm 5.Driving mechanism 6 is made up of fixed rotating shaft 13, drive link 14, valve rod 15 and extension spring 16, and fixed rotating shaft 13 is installed on the end on the valve body 2, and an end and the fixed rotating shaft 13 of drive link 14 link together, and drive link 14 can rotate around fixed rotating shaft 13.Have through hole 17 on the drive link 14, be threaded in the through hole 17, valve rod 15 also has outside thread, and valve rod 15 is installed on the through hole 17, and valve rod 15 is fixing with drive link 14 by nut 18 lockings.The upper and lower position of valve rod 15 on drive link 14 can be regulated.The lower end of valve rod 15 contacts with the upper end of push rod 3, and extension spring 16 is positioned at and the side of fixed rotating shaft 13 with respect to valve rod 15 symmetries, and an end of extension spring 16 and drive link 14 are fixing, and the other end and valve body 2 are fixing.The other end of drive link 14 is the hook-type of bending, and the parts of tending to act that are positioned at housing 1 with timer 4 contact.Timer 4 is the commercially available prod, and the parts of tending to act that timer 4 is positioned at housing 1 comprise dwang 19 and rotating disk 20, and dwang 19 is fixedlyed connected with the rotating mechanism in the timer 4, by adjusting knob 28 dwang 19 is regularly rotated.Rotating disk 20 is installed on the dwang 19, has breach 23 on it.Rotating disk 20 is two rotating disks, and the difference that all has breach 23, two rotating disks is that the breach section angle of inclination of indentation, there is different, is beneficial to rotation and drive link 14 and falls rapidly.Drive link 14 contacts with the surface of the outer ring of rotating disk 20.Surface at shell 1 also is equipped with tutorial light 21, provides power supply by the battery of installing in the housing 1 22, the break-make of tutorial light 21 by in the timer 4 with normally opened contact control.

When installing and using, timing air valve is fixedly installed in the front end of the conveying gas pipeline that links to each other with gas range, and gas just can be entered in the kitchen range through gas-entered passageway 7, diaphragm chamber 9 and the outlet passageway 8 of timing air valve.When using, at first rotate the adjusting knob 28 on the timer 4, set time, dwang 19 on the timer 4 drives rotating disks 20 and rotates, and makes breach 23 on the rotating disk 20 away from the contact jaw of drive link 14 with rotating disk 20, and the valve rod 15 on this moment drive link 14 is lifted, extension spring 16 stretches, push rod 3 and diaphragm 5 lift under the effect of opening spring 10, make gas-entered passageway 7, diaphragm 9 and outlet passageway 8 link up the use of can lighting a fire.After then, breach 23 on the rotating disk 20 just goes to the contact jaw of drive link 14, this end drive link 14 slides in the breach 23 under the effect rapidly of extension spring 16, valve rod 15 is pressed down, press push rod and move for 3 times, overcome the active force of opening spring 10, make diaphragm 5 be depressed into the inlet of gas-entered passageway 7, with inlet seal, not conducting of combustion gas this moment, the flame on the kitchen range extinguishes automatically.Treat again regularly, the contact jaw of drive link 14 with rotating disk 20 could be transferred to away from breach 23 places, make valve rod 15 liftings, air flue is linked up.Tutorial light 21 is bright when regularly beginning, and goes out automatically when regularly finishing, and gives prompting.

Above-mentioned timing air valve is simple in structure, and is easy to use, and tightness is good, once the poorly sealed situation of diaphragm 5 occurs, can also to increase downward pressure, guarantee air tight, safe in utilization by the distance of nut 18 regulating valve stems 15 with respect to push rod 3 upper ends.Owing to be the mechanical type transmission all, therefore save the energy, long service life, oil resistant is corrosion-resistant.Be installed on the kitchen range, cost is low, has increased the timing function of kitchen range, can prevent the generation of fire effectively.

Embodiment 2

Diaphragm 5 in the timing air valve among the embodiment 1 can also be substituted by structure as shown in Figure 6, and wherein the A figure among Fig. 6 is an inflatable membrane, and its underpart has elasticity column 27, and the bottom of seal face also has seal convexity ring 11.Diaphragm 5 in this diaphragm alternate embodiments 1 and unlatching spring 10 use identical with embodiment 1.Structure among the B figure among Fig. 6 has been removed diaphragm, directly by the lower end of push rod 3 and inlet's contact seal of gas-entered passageway 7, the bottom of push rod 3 is a cone poppet 25, opens spring 10 and is installed between the inlet end face of the conical surface of cone poppet 25 of push rod 3 bottoms and valve body 2.This relatively simple for structure, cost reduces, but sealing is a bit weaker.The structural similarity of C among Fig. 8 figure and B figure, the lower end of different is push rod 3 is a semi-round ball spool 26, opens spring 10 and is installed between the inlet end face of push rod 3 lower end surface and valve body 2.

More than these structures all can play and cut off or the effect of conducting air flue, the diaphragm in can alternate embodiment 1, the function that keeps timing air valve regularly to die.

Claims

1. timing air valve, it is characterized in that: mainly by shell, valve body, push rod, timer, diaphragm and driving mechanism are formed, valve body, valve rod, timer, diaphragm and driving mechanism all are positioned at housing, the dial plate and the adjusting knob of timer are positioned at case surface, valve body is fixedly installed in the shell, wherein have gas-entered passageway and outlet passageway, link up by diaphragm chamber between two passages, diaphragm is arranged in the inlet of the gas-entered passageway of diaphragm chamber, the unlatching spring is installed between diaphragm and inlet, the valve body of diaphragm top has through hole, push rod is arranged in through hole, and an end of push rod contacts with diaphragm, and the other end contacts with valve body driving mechanism outward, the driving mechanism push rod of can tending to act moves, and driving mechanism contacts with the parts of tending to act in the timer.

2. timing air valve according to claim 1, its feature also is: driving mechanism is made of fixed rotating shaft, drive link, valve rod and extension spring, fixed rotating shaft is fixedly installed on the valve body, one end of drive link is connected with fixed rotating shaft, have through hole on the drive link, be threaded in the through hole, have outside thread on the valve rod, valve rod cooperates installation with through hole, by nut check, the lower end of valve rod contacts with push rod, and an end and the drive link of extension spring are fixed, the other end is fixedlyed connected with valve body, and the other end of drive link contacts with the parts of tending to act of timer.

3. timing air valve according to claim 1, its feature also is: the parts of tending to act of timer are dwang and rotating disk, rotating disk is fixedly installed on the dwang, have breach on the rotating disk, rotating disk contacts with drive link in the driving mechanism, and the adjusting knob of timer can drive dwang and regularly rotate.

4. timing air valve according to claim 2, its feature also is: the position of valve rod can be regulated by the nut that matches with it.

5. timing air valve according to claim 2, its feature also is: fixed rotating shaft in the driving mechanism and extension spring lay respectively at the both sides of valve rod.

6. timing air valve according to claim 1, its feature also is: have tutorial light, tutorial light provides power supply by battery.

7. timing air valve according to claim 1, its feature also is: diaphragm is the dish made by oil resistant rubber or the diaphragm or the inflatable membrane for being made by oil resistant rubber of dish type.

8. timing air valve according to claim 7, its feature also is: the diaphragm bottom has the seal convexity ring.

9. timing air valve according to claim 1, its feature also is: diaphragm can be substituted by metal poppet valve core or metal semi-round ball spool.