CN201013907Y - Gas self-timing shut-off valve - Google Patents

Abstract

The utility model relates to a fuel gas automatic timing close valve used for promoting the safety of using liquefied petroleum gas and coal gas, aiming at achieving the improvement to a valve body which comprises an air inlet pipe, an air outlet pipe and a valve cover. A separating board provided with valve holes and arranged between air inlet holes and air outlet holes is arranged in the valve body, a return spring provided with a valve flap is arranged between the air inlet pipe holes and the separating board, a sealing piston is arranged in the valve body that is positioned at the end of the valve cover, a connecting rod is arranged on the valve flap and the sealing piston, a shell body is arranged at an outer side of the valve cover, one end of the valve cover is provided with an axis hole and the other end of the valve cover is provide with an axis hole and a blocking pin hole, and a timer shell is arranged in the valve cover, a timer axis lever, one end of which is contacted with the sealing piston, and is inserted in the axis hole of the shell body and the valve cover, a blocking pin and a hand button provided with a pointer are arranged on the other end of the timer axis lever, and a time dial plate is arranged on an outer side wall of a shell wall with a blocking pin hole.

Description

Combustion gas automatic timing cut-off valve

Affiliated technical field

The utility model relates to a kind of combustion gas automatic timing cut-off valve that uses liquefied petroleum gas and gas safety that improves.

Background technique

It is reported that the valve that is used for petroleum oil liquid gas storage tank and gaspipe line at present generally is easy common two-way valve, therefore, have and be not closed completely, easily leak, even problem such as forget to close.Serious accidents such as the poisoning that causes because of above-mentioned reason, fire, blast often take place in recent years, have caused heavy losses for the country and people's lives and properties.

Summary of the invention

The utility model aims to provide a kind of reasonable in design, simple in structure, safe and reliable, long service life, can prevent to forget to close the combustion gas automatic timing cut-off valve with stone or metal plate for standing a stove on as a precaution against fire and tube leaks.

The technological scheme that its technical problem that solves the utility model adopts is: will include and have suction tude, the valve body of steam outlet pipe and valve gap is improved, both be provided with and had being positioned at into of valve opening in the inside of valve body, dividing plate between air outlet hole, between air inlet pipe hole and dividing plate, be provided with the return spring of flap, be provided with packed-piston at the valve body that is positioned at the valve gap end, on flap and packed-piston, be provided with connecting rod, be provided with an end in the outside of valve gap and have axis hole, the other end has axis hole and pin hole, in be provided with the housing of timer, in the axis hole of housing and valve gap, be inserted with the timer axostylus axostyle that an end contacts with packed-piston, be provided with bayonet lock and have the hand button of pointer at the other end of timer axostylus axostyle, be provided with the time dial plate at the outer side surface of the shell wall that has pin hole.

The utility model and background technique relatively owing to adopted above-mentioned technical solution, therefore, it is reasonable in design that it has been had, and simple in structure, safe and reliable, long service life, can prevent to forget to close and advantages such as stone or metal plate for standing a stove on as a precaution against fire and tube leaks.

Description of drawings

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

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the hand button of Fig. 1 and the structural representation of time dial plate.

Embodiment

Referring to Fig. 1, its valve body 2 is that an end has suction tude 1, and the other end has valve gap 13, and sidepiece has steam outlet pipe 5, and inside has being positioned at into and out of the valve body of the dividing plate between pore 14 of valve opening.Rubber flap 4 and flap return spring 3 that steel disc is arranged in inlet hole and 14 on dividing plate are equipped with, the rubber seal piston 7 of steel disc is installed at the valve body that is positioned at valve gap 13 ends, at flap 4 and 7 of packed-pistons connecting rod 6 is installed, in the outside of valve gap 13 end is installed and has axis hole, the other end has axis hole and pin hole 17, in the housing 11 of timer 8 is installed, in the axis hole of housing 11 and valve gap 13, be inserted with the timer axostylus axostyle 12 that an end contacts with rubber seal piston 7, the other end at timer axostylus axostyle 12 is welded with bayonet lock 9 and the hand button 10 that has pointer 16 is installed, and is fastened with time dial plate 15 at the outer side surface of the shell wall that has pin hole 17 by screw.

During installation, the suction tude 1 of combustion gas automatic timing cut-off valve is connected on the pipeline of source of the gas, on the conduit that steam outlet pipe 5 is connected with stone or metal plate for standing a stove on as a precaution against fire is connected with combustion gas automatic timing cut-off valve, during use, with hand hand button 10 is depressed, make bayonet lock 9 break away from pin hole 17, rotate simultaneously and unclamp hand after hand button 10 makes pointer 16 point to the position of needed times, this moment, flap 4 was at timer axostylus axostyle 12, leave the valve opening of dividing plate 14 under the effect of packed-piston 7 and connecting rod 6, combustion gas automatic timing cut-off valve is in opening state, and pick up counting, then the valve of source of the gas and the valve open of stone or metal plate for standing a stove on as a precaution against fire are also lighted a fire, when hand button 10 turn to pointer 16 when pointing to 0 bayonet lock 9 enter pin hole 17, this moment, flap 4 was closed the valve opening of dividing plate 14 under the effect of flap return spring 3, combustion gas automatic timing cut-off valve is in closed condition.After using up fire, timing allows combustion gas automatic timing cut-off valve close or close simultaneously combustion gas automatic timing cut-off valve automatically by the time regularly not to the valve that can close stone or metal plate for standing a stove on as a precaution against fire earlier.

Claims (1)

1. combustion gas automatic timing cut-off valve, include and have suction tude [1], the valve body [2] of steam outlet pipe [5] and valve gap [13], it is characterized in that being provided with and have being positioned at into of valve opening in the inside of valve body [2], dividing plate between air outlet hole [14], between air inlet pipe hole and dividing plate [14], be provided with the return spring [3] of flap [4], be provided with packed-piston [7] at the valve body [2] that is positioned at valve gap [13] end, on flap [4] and packed-piston [7], be provided with connecting rod [6], be provided with an end in the outside of valve gap [13] and have axis hole, the other end has axis hole and pin hole [17], in be provided with the housing [11] of timer [8], in the axis hole of housing [11] and valve gap [13], be inserted with the timer axostylus axostyle [12] that an end contacts with packed-piston [7], be provided with bayonet lock [9] and have the hand button [10] of pointer [16] at the other end of timer axostylus axostyle [12], be provided with time dial plate [15] at the outer side surface of the shell wall that has pin hole [17].

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