CN2597794Y

CN2597794Y - Liquefied gas pressure reducing valve with timing closing unit

Info

Publication number: CN2597794Y
Application number: CNU032267576U
Authority: CN
Inventors: 江水义
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-01-09
Filing date: 2003-01-09
Publication date: 2004-01-07
Anticipated expiration: 2013-01-09

Abstract

The utility model relates to a liquid gas decompressing valve with timing closing. The utility model leaves a space between the valve cover (2) and the decompressing spring (5) of the common liquid gas decompressing valve; the space is provided with a mechanical timer (14) and a timing fork pulling lever (11), one end of the timing fork pulling level presses on the upper end of the decompressing spring (5) and the other end is a pivot (12) and a bump (13) in the middle part tips a gap wheel (16) which is driven by the timer (14) through a transmission shaft (15); the valve cover (2) and the upper part of the decompressing spring (5) are connected together by a timing return spring (17); a control pole (18) crosses through the center of a valve film (3), a valve sheet (4), the decompressing spring (5) and the timing return spring (17) in turn; the lower end of the control pole connects a lever (6) and the upper end stretches to the air leakage detecting point (20) of the valve cover top to be an indicating pole. The utility model is mainly used for the decompressing of domestic using liquid gas steel bottle kitchen tools. Using the product of utility model not only can take decompression function, but also can detect and avoid the leakage accidents. The utility model is characterized in simple structure, easy manufacturing, convenient operating, and reliable security.

Description

The liquefied gas pressure regulator that band is regularly closed

Technical field

The utility model relates to a kind of stable equilibrium valve with deferred action function, and is especially a kind of with the liquefied gas pressure regulator of regularly closing.

Background technique

As everyone knows, reduction valve is one of device of household liquified stove indispensability, in order to the pressure and the flow of control liquid gas, makes liquefied gas furnace energy normal combustion.But the liquefied gas pressure regulator that generally uses has only simple pressure-reducing function at present, does not possess other functions such as automatic delay function.When people make meal, when heating up water, usually can forget that Guan Huoer causes water to be dryouied, container is burnt out, or food is happened occasionally by phenomenon such as burnt.Also have when heating up water or make gruel, usually water that can be overflowed or gruel is the flame extinction of stove, and coal gas spills and leads to the possibility of fire or poisoning.This not the exempt from customs examination user brought some unsafe service factors.China Patent No. 89201531.4 discloses a kind of " reduction valve that has timing control apparatus ", it be on existing reduction valve basis in relief chamber and valve body top increase and be provided with one mainly by timer, lever, the timing control apparatus that elastic membrane spool, pressure spring and support plate are formed, this apparatus structure is complicated, change bigger to prior art, more parts have not only been increased, cost is bigger, also set up valve film phonograph seal structure one, increased the valve film and born the pressure of liquid gas and break and cause producing the possibility of leakage phenomenon.

Summary of the invention

The purpose of this utility model is to design a kind of gas leakage that detects on the basis of the reduction valve mechanism of prior art, can timing automatic close the liquefied gas pressure regulator that the band of source of the gas is regularly closed, should under the condition of the sealing configuration in not changing original underpressure chamber, realize safe and reliable function.

The purpose of this utility model can reach by implementing following technical proposal: the liquefied gas pressure regulator that band is regularly closed is by valve disc, valve gap, the valve film, valve block, relief spring, lever, valve plug, the angle valve joint, suction port and air outlet are formed, the valve film is between valve disc and valve gap, be valve block above the valve film, between valve block and the valve gap relief spring is arranged, between valve film and the valve disc lever is arranged, at valve plug, there is the angle valve joint at the valve disc two ends, suction port, the air outlet, valve disc, valve film and valve gap are fastened together by screw, between above valve gap and the relief spring, leave a space, this space is provided with a timing fork lever, one end of timing fork lever is pressed in the top of relief spring, the other end is a fulcrum, the projection at fork lever middle part heads on the breach wheel that is driven by transmission shaft by mechanical timer, there is a timer return spring to be connected between valve gap and the relief spring top, a controlling rod passes the valve film successively, valve block, relief spring, the center of timer return spring, the lower end connects lever, and the gas leakage Check point place that the upper end extends the valve gap top makes indicating arm.

Working principle of the present utility model is such, in the operating time that people set, the breach wheel rim that timer drives by transmission shaft presses down the projection at fork lever middle part, the pulling force that overcomes the timer return spring by the fork lever pushes relief spring, at this moment the utility model just becomes a reduction valve by common reduction valve control mechanism work, liquid gas enters the suction port of reduction valve through the angle valve of steel cylinder, back down valve plug and enter relief chamber, at relief spring, the valve film, under the common balance corrective action of lever and valve plug, air pressure is stabilized and is controlled at certain pressure range, enters steam outlet pipe for the stove burning by air outlet hole.After timer is finished the time that people set, breach on its breach wheel rises by the projection at fork lever middle part, under the effect of timer return spring, pressure spring is loosened, simultaneously controlling rod is upwards mentioned, controlling rod drives lever, valve plug seals suction port, cut off the gas supply of stove, thereby reached the requirement of timing controlled auto extinguishing.

During use, people need only the turn mechanical timer, and to the desired control time, stove just can extinguish at preset time with timer.

The utility model also has special measuring ability, and whether each connection part and the pipeline that utilize it can detect pipeline at any time leak gas.During inspection, open the angle valve of cylinder for liquefied gas earlier, turn mechanical timer again, with the position about timer to 10 minute, at this moment the switch of gas range is still in the closed position.The indicating arm at valve gap top gas leakage this moment Check point place will drop to minimum point from concordant position when you turn turn-knob, rise to flush position at once again.Close the angle valve of cylinder for liquefied gas then, at this moment observe the change in location of indicating arm again, the position of indicating arm does not change and illustrates that then pipeline and joint do not have gas leak phenomenon about ten minutes, if descended on the contrary then gas leak phenomenon is described.Discovery has yourself after the gas leak phenomenon will check the gas leakage point of pipeline and joint or gas range respectively, repairs.

Compared with the prior art the utility model has following good effect: owing to increased regularly gas-cutting off device, therefore can be scheduled to service time or control duration of ventilation; The utility model can be reduced to bottom line with danger, and does not influence the normal use of reduction valve.On liquefied gas stove, use product of the present utility model, not only can play pressure-reducing function, also can detect the generation of pre-anti-gas-leak accident simultaneously, have easy to manufacture, easy to operate, characteristics such as Safety performance is reliable.

Description of drawings

Fig. 1 is structure master's cross-sectional schematic of the present utility model;

Fig. 2 overlooks the A-A partial sectional view for Fig. 1's.

In the accompanying drawing: 1 valve disc; 2 valve gaps; 3 valve films; 4 valve blocks; 5 relief springs; 6 levers; 7 valve plugs; 8 angle valve joints; 9 suction ports; 10 air outlets; 11 fork levers; 12 fulcrums; 13 projections; 14 timers; 15 transmission shafts; 16 breach wheel; 17 timer return springs; 18 controlling rods; 19 screws; 20 gas leakage Check point places.

Specific embodiment

Below in conjunction with accompanying drawing the utility model is carried out detailed narration:

Accompanying drawing is represented is the liquefied gas pressure regulator that the band of a kind of JYT-0.6 is regularly closed, form by valve disc 1, valve gap 2, valve film 3, valve block 4, relief spring 5, lever 6, valve plug 7, angle valve joint 8, suction port 9 and air outlet 10, valve film 3 is between valve disc 1 and valve gap 2, it above the valve film 3 valve block 4, between valve block 4 and the valve gap 2 relief spring 5 is arranged, lever 6, valve plug 7 are arranged between valve film 3 and the valve disc 1, there are angle valve joint 8, suction port 9 and air outlet 10 in valve disc 1 two ends, and valve disc 1, valve film 3 are fastened together by screw 19 with valve gap 2.Between above valve gap 2 and the relief spring 5, leave the space, this space is provided with a timing fork lever 11, one end of timing fork lever 11 is pressed in the top of relief spring 5, the other end is a fulcrum 12, the projection 13 at fork lever middle part heads on the breach wheel 16 that is driven by transmission shaft 15 by mechanical timer 14, there is a timer return spring 17 to be connected between valve gap 2 and relief spring 5 tops, a controlling rod 18 passes valve film 3 successively, valve block 4, relief spring 5, the center of timer return spring 17, the lower end connects lever 6, and the gas leakage Check point place 20 that the upper end extends the valve gap top makes indicating arm.The valve gap 2 of the above is not established exhaust port in addition except that gas leakage Check point place 20.

Claims

1, a kind of with the liquefied gas pressure regulator of regularly closing, by valve disc (1), valve gap (2), valve film (3), valve block (4), relief spring (5), lever (6), valve plug (7), angle valve joint (8), suction port (9) and air outlet (10) are formed, valve film (3) is positioned between valve disc (1) and the valve gap (2), above the valve film (3) valve block (4), between valve block (4) and the valve gap (2) relief spring (5) is arranged, between valve film (3) and the valve disc (1) lever (6) is arranged, in valve plug (7), there is angle valve joint (8) at valve disc (1) two ends, suction port (9), air outlet (10), valve disc (1), valve film (3) is fastened together by screw (19) with valve gap (2), it is characterized in that: between valve gap (2) and relief spring (5) top, leave the space, this space is provided with a timing fork lever (11), one end of timing fork lever (11) is pressed in the top of relief spring (5), the other end is fulcrum (12), the projection (13) at fork lever middle part heads on the breach wheel (16) that is driven by transmission shaft (15) by timer (14), there is a timer return spring (17) to be connected between valve gap (2) and relief spring (5) top, a controlling rod (18) passes valve film (3) successively, valve block (4), relief spring (5), the center of timer return spring (17), the lower end connects lever (6), and the gas leakage Check point place (20) that the upper end extends the valve gap top makes indicating arm.

2, the liquefied gas pressure regulator of regularly closing of being with according to claim 1, it is characterized in that: described valve gap (2) is not established exhaust port in addition except that the hole at gas leakage Check point place (20).

3, the liquefied gas pressure regulator of regularly closing of being with according to claim 1, it is characterized in that: described timer (14) is a mechanical timer.