CN201715236U

CN201715236U - Gas cylinder control valve capable of quickly filling with liquefied petroleum gas

Info

Publication number: CN201715236U
Application number: CN2010202388220U
Authority: CN
Inventors: 谭启纯
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-06-25
Filing date: 2010-06-25
Publication date: 2011-01-19
Anticipated expiration: 2020-06-25

Abstract

The utility model disclose a gas cylinder control valve with reliable seal capable of quickly filling with liquefied petroleum gas, which comprises a valve body, a handwheel and a connection port, wherein gas passages for communicating the connection port and the inner chamber of a gas cylinder are arranged in the valve body, and are provided with receiving ports; a lifting plunger piston with the reset function is arranged in the gas passage; a passage for communicating an upper gas passage and a lower gas passage, and a sealing ring sealed with the receiving port in a matched manner are formed on the lifting plunger piston; the top of the lifting plunger piston extends upwards to the connection port; and a guide sliding chamfer angle is processed at the periphery of the lifting plunger piston. After the technical scheme is adopted, all that is needed to directly insert the gas cylinder control valve into a gas filling gun during the petroleum gas filling, and the gas cylinder control valve can be immediately filled with gas; the gas filling gun is pulled out after the gas cylinder control valve is filled with gas, and the control valve can be automatically closed for seal. Therefore, the gas filling efficiency is very high; and since the control valve is automatically sealed, the gas leakage caused by insufficient pressure resulted from factors such as human factors, jolting in the carrying process, threads loss and the like is avoided, and the sealing is very reliable.

Description

A kind of gas cylinder control valve that can fill liquefied petroleum gas (LPG) fast

Technical field:

The utility model relates to a kind of liquefied petroleum gas cylinder control valve.

Background technique:

Existing liquefied petroleum gas cylinder control valve structure as shown in Figure 1, it is by valve body 01, connecting port 02, air flue 03, handwheel 04 and the sealing gasket 05 that is installed on the handwheel main shaft 041 constitute, by turn

handwheel

04,05 lifting of control sealing gasket, thereby realize the switch of air flue 03, need turn handwheel 04 during inflation, make sealing gasket 05 rise, air flue 03 is opened, inject charge gun toward the cylinder filling liquefied petroleum gas (LPG), after finishing inflation, necessary first turn handwheel 04 is pushed down the air flue outlet to sealing gasket 05 decline, air flue 03 is closed, just can extract charge gun then, there is following shortcoming in the control valve of this structure: 1. aeration step is loaded down with trivial details, and charging efficiency is very low; 2. if sealing gasket is pushed down the downforce deficiency of air flue outlet, leak air easily; 3. sometimes storing, in the transportation process, occurring becoming flexible between sealing gasket and the air flue outlet, equally gas leak phenomenon can take place.

Summary of the invention:

The purpose of this utility model is in order to overcome the shortcoming of above-mentioned prior art, to provide a kind of and can fill liquefied petroleum gas (LPG), reliable sealing gas cylinder control valve fast.

For achieving the above object, the technological scheme that the utility model provides is: a kind of gas cylinder control valve that can fill liquefied petroleum gas (LPG) fast, include valve body, handwheel and connecting port, in valve body, be provided with the air flue that is communicated with connecting port and gas cylinder inner chamber, described air flue forms closing in, in air flue, be provided with the lifting plunger of band reset function, this lifting rod is provided with beyond the Great Wall and is communicated with the passage of going up downtake, and be provided with and the seal ring of the fitted seal that closes up, the top of lifting plunger extends upwardly to the connecting port place, and its periphery is processed with the slide guide chamfering.

Seal ring is located at the below of closing in, forms first limited step beyond the Great Wall at lifting rod, is provided with second limited step in the lower end of air flue, is provided with Returnning spring between first limited step and second limited step.

After adopting technique scheme, just can inflate as long as directly inject charge gun when filling petroleum gas at once, extract charge gun after the inflation, control valve will automatic shutdown seal, charging efficiency is very high, and owing to be from motive sealing, the factors such as ripple vibrations, the thread eclipse of the sun or moon that are not subjected to run in personal factor, the handling process cause that pressure causes gas leakage inadequately, seals very reliable.

Description of drawings:

Fig. 1 is the structural drawing of this prior art petroleum gas cylinder control valve;

Fig. 2 is the structural representation of the utility model petroleum gas cylinder control valve;

Structural representation when Fig. 3 is the inflation of the utility model petroleum gas cylinder control valve.

Embodiment:

Now elaborate the utility model in conjunction with the accompanying drawings:

This petroleum gas cylinder control valve includes valve body 1, handwheel 2 and connecting port 3, in valve body 1, be provided with the air flue 4 that is communicated with connecting port 3 and gas cylinder inner chamber, described air flue 4 forms and closes up 41, in air flue 4, be provided with lifting plunger 5, this lifting plunger 5 is provided with and is communicated with the passage 51 of going up downtake, close up on the lifting plunger 5 41 below be provided with and the seal ring 6 of 41 fitted seal that close up, the top of lifting plunger 5 extends upwardly to connecting port 3 places, make lifting plunger 5 can with charge gun 7 contact matching of inserting, lifting plunger 5 top circumference are processed with slide guide chamfering 52, because the existence of slide guide chamfering 52, bootable lifting plunger 5 was done the pressurized descending motion when charge gun 7 inserted, on lifting plunger 5, form first limited step 53, utilize to be threaded in the lower end of air flue 4 and be fixed with base ring 8, be processed with the through hole 81 that is communicated with air flue 4 and gas cylinder inner chamber on the base ring 8, lifting plunger 5 passes base ring 8, this base ring 8 forms second limited step 9 in air flue 4, between first limited step 53 and second limited step 9, be provided with Returnning spring 10, during normality, Returnning spring 10 up withstands lifting plunger 5, make

seal ring

6 and 41 cooperations of closing up, air flue is closed, as shown in Figure 2.

During inflation, insert charge gun 7, as shown in Figure 3, under the effect of slide guide chamfering 52, the effect that charge gun rifle body overcomes Returnning spring 10 presses down lifting plunger 5, at this moment the

seal ring

6 and 41 disengagings of closing up, whole air flue 4 conductings, the liquefied petroleum gas (LPG) direction of arrow in the figure flows in the petroleum gas cylinder; After finishing inflation, extract charge gun 7, at one time, Returnning spring 10 up pushes up back lifting plunger 5, makes seal ring 6 seal and closes up 41, and air flue 4 is closed.

Than traditional oil gas cylinder control valve, whole gas replenishment process does not need the turn handwheel, remove the step of turn handwheel from, realize the fast aeration effect, and owing to be self-closing sealing, can not exist because of handwheel turn step or the not enough gas leakage accident generation that causes of self-locking, guarantee that petroleum gas is sealed reliably in the bottle.

The embodiment of the above is preferred embodiment of the present utility model only, is not to limit practical range of the present utility model with this, so the equivalence that all shapes according to the utility model, structure and principle are done changes, all should be covered by in the protection domain of the present utility model.

Claims

1. gas cylinder control valve that can fill liquefied petroleum gas (LPG) fast, include valve body, handwheel and connecting port, in valve body, be provided with the air flue that is communicated with connecting port and gas cylinder inner chamber, it is characterized in that: described air flue forms closing in, be provided with the lifting plunger of band reset function in air flue, this lifting rod is provided with passage that be communicated with to go up downtake beyond the Great Wall, and is provided with and the seal ring of the fitted seal that closes up, the top of lifting plunger extends upwardly to the connecting port place, and its periphery is processed with the slide guide chamfering.

2. a kind of gas cylinder control valve that can fill liquefied petroleum gas (LPG) fast according to claim 1, it is characterized in that: seal ring is located at the below of closing in, form first limited step beyond the Great Wall at lifting rod, be provided with second limited step in the lower end of air flue, between first limited step and second limited step, be provided with Returnning spring.