CN2115430U

CN2115430U - Lpg cylinder valve

Info

Publication number: CN2115430U
Application number: CN 91230976
Authority: CN
Inventors: 蔡燕昕; 王明豪; 钱发祥
Original assignee: DONGHAI VALVE FACTORY SHANGHAI
Current assignee: DONGHAI VALVE FACTORY SHANGHAI
Priority date: 1991-11-29
Filing date: 1991-11-29
Publication date: 1992-09-09

Abstract

The utility model provides a liquefied petroleum gas cylinder valve which mainly comprises a movable sleeve with a convex middle, a spring, a rotary hand wheel and a one-way check valve, wherein the movable sleeve can move up and down, the rotary hand wheel can simultaneously open and close an inflating gas inlet and a combustive gas outlet, and the one-way check valve is additionally arranged to prevent liquid and gas from flowing backward,. The liquefied petroleum gas cylinder valve has the characteristics of simple operation, high reliability, safety and convenience, and can be used as the valve for combustive gas and other liquefied petroleum gas media in unit. The utility model is mainly suitable for five cylinder valves of liquefied petroleum gas carbon, and can also be adaptable to other liquefied petroleum gas cylinder valves generating gas with or without pressure.

Description

LPG cylinder valve

The utility model relates to liquefied petroleum gas cylinder valve, refers more particularly to liquefied petroleum gas carbon 5 class cylinder valves.

Along with the resident increases the demand of liquefied petroleum gas (LPG), the liquefied petroleum gas (LPG) that generally contains propane presents the situation that supply falls short of demand, is energy saving, and the liquefied petroleum gas (LPG) that it is carbon 5 classes that people have developed the former main content that is used as waste gas is as domestic fuel.Liquefied petroleum gas carbon 5 class working pressures are significantly less than liquefied petroleum gas (LPG) propane class medium.Existing liquefied petroleum gas carbon 5 class cylinder valves have two air inlet/outlets, and one is the suction port that links to each other with air pump, and another is that this air outlet can directly link to each other with kitchen range for the air outlet of output volatilization inflammable gas.Generally, two air inlet/outlets have two valves respectively, but they can only respectively manage each, can not link.Forget the valve of pass suction port if closed the valve of control air outlet, just might produce gas or liquid and cause danger to external leakage from suction port.

The purpose of this utility model is to provide a kind of as long as rotate the liquefied petroleum gas cylinder valve of handwheel with regard to inflation suction port of opening and closing simultaneously and inflammable gas air outlet.For preventing that gas-filled pump under the situation of termination of pumping suddenly, preventing pouring in down a chimney of bottle interior liquids and gases effectively, an one way stop peturn valve device has been adopted in design, and can partly unite use with valve body simultaneously.

The utility model liquefied petroleum gas cylinder valve comprises a rotating handwheel, drives valve rod and shutter member by handwheel, and shutter member can be moved up and down, and an inflation suction port connects mouth and an inflammable gas outlet.The kink of intermediate projections moving up and down in the kink seat in valve body has one group of spring under the kink, Sealing and air pipe pour in down a chimney for preventing liquid or gas, and the one way stop peturn valve that has trident to make guiding in is housed under air pipe.

The liquefied petroleum gas cylinder valve that the utility model provides has simple to operate, good reliability, the characteristics of safe ready.

Fig. 1 is total figure of the utility model liquefied petroleum gas cylinder valve, and Fig. 2 is the cross-sectional view of air pipe and safety check.1 is safety check among the figure, 2 connecting sleeves, 3 air pipes, 4O RunddichtringO, 5 valve bodies, 6 kink seats, 7 springs, 8O RunddichtringO, 9 kinks, 10 lower seal, 11 suction ports connect mouth, 12 Sealings, 13 shutter members, 14 air pumps, 15 valve rods, 16 handwheels, 17 air, 18 inflammable gass, 19 gas cylinders, 20 valve air gates, 21 aluminium dogs.

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

The utility model liquefied petroleum gas cylinder valve, by a rotation hand wheel 16, drive valve rod 15 and shutter member 13, make shutter member 13 because the effect of valve rod 15 moves up and down, an inflation suction port connects mouth 11 and an inflammable gas air outlet 20, the kink 9 of intermediate projections moving up and down in the kink seat 6 in valve body 5, kink has one group of spring 7 for 9 times, kink 9 tops and middle bump bottom surface are sealing seats, for making sealing seat that good air tightness be arranged, this two places sealing seat projection, when valve is in closed condition, the sealing seat at kink 9 tops contacts with Sealing in the shutter member 13, the sealing seat of bump bottom surface contacts with lower seal 10 in the middle of the kink 9 simultaneously, this lower seal 10 is between kink seat 6 and valve body 5, the air inlet gas 17 and the gas 18 of giving vent to anger are closed, when valve is in opening state, Sealing is separated in kink top seal seat and the shutter member 13, simultaneously under the effect of the one group of spring 7 in kink 9 bottoms, kink 9 is raised, bump bottom surface and lower seal 10 are separated, and the air inlet gas 17 and the gas 18 of giving vent to anger are opened like this.

Airflow direction about gas.

1, the gas that charges into of suction port enters the gap that connects between mouth 11 and the kink 9, when valve hand wheel 16 is in opening state, then air-flow 17 enters the gap of kink 9 and kink seat 6 inwalls by the kink 9 and the gap of lower seal 10, but perforate directly communicates with this gap on the kink seat 6, in the present embodiment, make a living one group of cross-drilled hole on block set 6 tops of air communication enters the gap of 5 of kink seat 6 and valve bodies, pass through one group of inclined hole of kink seat bottom again, have a gas port under the kink, inclined hole and gas port communicate, and gas port connects air pipe and feeds in the bottle.

2, the inflammable gas 18 that evaporates in the bottle enters the inner chamber that kink seat 6 matches with kink 9 through the hole of kink seat 6 bottoms, duct by kink 9 bottom mounting spring 7 enters kink 9 tops then, Sealing in the sealing seat at this top and the shutter member 13 is separated, and then inflammable gas 18 20 flows to kitchen range from the body cavity to the air outlet.Kong Weiyi group on the kink.In the present embodiment, spring is one, the Kong Weiyi on the kink, and between kink and kink seat, between kink and valve body, between kink seat and valve body Sealing is arranged, Sealing can be a seal ring, the O RunddichtringO also can be a seal washer.Mention in this manual one group can be one, two, more than three or three.

In the utility model liquefied petroleum gas cylinder valve on the kink seat gas port communicate with inclined hole, if gas port communicates with straight hole, then air inlet/outlet reciprocity, but function is constant, promptly suction port becomes the air outlet, the air outlet becomes suction port.

Connection and effect about one way stop peturn valve.

For preventing that liquid and gas from pouring in down a chimney, the utility model liquefied petroleum gas cylinder valve has the one way stop peturn valve 1 that has trident to make guiding in 3 times attachings of air pipe, with general glass safety check other being arranged is according to requirement of the present utility model and characteristics, safety check two ends connecting tube part all curves U type shape, and formation intersecting angle, connecting sleeve 2 materials that connect safety check adapter and air pipe are teflon or nylon 1010, fixedly the fixing device of air pipe can be the foundry goods or the plastic of resistant material, and aluminium dog 21 or line are pricked.

The utility model liquefied petroleum gas cylinder valve attaching has one way stop peturn valve, can be separately uses as the valve of inflammable gas and other liquefied petroleum gas medium.

The utility model liquefied petroleum gas cylinder valve has simple to operate, good reliability, and the characteristics of safe ready mainly are used in liquefied petroleum gas carbon 5 class cylinder valves, also can be used in other and need pressurize or not pressurize and just can produce the liquefied petroleum gas cylinder valve of gas.

Claims

1, a kind of liquefied petroleum gas cylinder valve comprises a rotating handwheel, drives valve rod and shutter member by handwheel, and shutter member is moved up and down, and an inflation suction port connects the air outlet of a mouth and an inflammable gas, it is characterized in that:

A, a kink moving up and down have one group of spring under the kink, kink top and middle bump bottom surface are sealing seats;

B, suction port connect between mouth and the kink gapped, and be gapped between kink and the kink seat inwall, and this gap communicates with hole on the kink seat, has gas port to connect air pipe on the kink seat, and air pipe stretches in the bottle;

Between C, kink seat and valve body lower seal is arranged, kink moves up and down and separates with the sealing part and contact, and between kink and kink seat, kink and valve body, kink seat and valve body Sealing is arranged.

2, a kind of liquefied petroleum gas cylinder valve, comprise a rotating handwheel, drive valve rod and shutter member by handwheel, shutter member is moved up and down, an inflation suction port connects the air outlet of a mouth and an inflammable gas, there is trident to make the one way stop peturn valve of guiding in one for preventing that liquid or gas from pouring in down a chimney, under air pipe, being equipped with, it is characterized in that:

3, liquefied petroleum gas cylinder valve according to claim 2, it is characterized in that the one way stop peturn valve two ends are that U type syphon shape is taken over, and formation intersecting angle, the material that connects the connecting sleeve of air pipe and safety check adapter is teflon or nylon 1010, fixedly the fixing device of air pipe can be the foundry goods or the plastic of resistant material, and aluminium dog or line are pricked.

4, according to claim 1 or 2 or 3 described liquefied petroleum gas cylinder valves, it is characterized in that having on the kink one group of hole, the sealing seat projection of kink top and middle bump bottom surface, gapped between kink seat and valve body, three groups of holes are arranged on the kink seat, the one group of cross-drilled hole in top, one group of inclined hole and one group of straight hole are arranged at the bottom, and gas port, gas port connects air pipe, and air pipe connects one way stop peturn valve again, and Sealing can be a seal ring, the O RunddichtringO also can be a seal washer.

5, liquefied petroleum gas cylinder valve according to claim 4 is characterized in that gas port and inclined hole communicate, or communicates with straight hole.