CN202349271U

CN202349271U - Quantitative charging valve

Info

Publication number: CN202349271U
Application number: CN201120444729XU
Authority: CN
Inventors: 王令柱
Original assignee: HEBEI XIAOXUANFENG LIGHTING TECHNOLOGY DEVELOPMENT Co Ltd
Current assignee: HEBEI XIAOXUANFENG LIGHTING TECHNOLOGY DEVELOPMENT Co Ltd
Priority date: 2011-11-11
Filing date: 2011-11-11
Publication date: 2012-07-25
Anticipated expiration: 2021-11-11

Abstract

The utility model discloses a quantitative charging valve, which comprises a valve body and an air cylinder, wherein the valve body is connected with the air cylinder through a fixed plate, the air cylinder comprises a cylinder barrel, and a piston rod is movably arranged in the cylinder barrel. The quantitative charging valve is characterized in that: a cavity which runs through the cavity of the valve body is arranged in the valve body, the cylinder barrel axially is communicated with the cavity, the piston rod is movably inserted in the cavity, and is provided with an argon cavity for storing argon, seals are arranged on both sides of the argon cavity, the outer wall of the valve body is provided with three openings which are communicated with the cavity, and one of the openings is connected with a sensing port in order to detect the pressure of gas. Consequently, inert gas can be accurately charged, and moreover, the quantitative charging valve is convenient to adjust, can be widely applied, and can be used on long line exhaust machines, automatic long line exhaust machines and automatic round exhaust machines.

Description

Quantitative gas charging valve

Technical field

The utility model belongs to mechanical field, is specifically related in a kind of production process that can use electro-optical source industry gas discharge lamp the quantitative control charging device of exhaust air technique inert gas.

Background technique

Existing all kinds of gas discharge lamps all must charge into a certain amount of inert gas, and controlling accurately that inert gas charges into is all kinds of gas discharge lamp lamp key links.In the existing gas discharge lamp production process several kinds of inflation methods are arranged; Include " U type pressure gauge control method ", " solenoid valve vacuum measuring instrument control method ", wherein U type pressure gauge control method is that eyes observational error hand-manipulated is difficult to exempt from, and can not be used for producing in the automatic vent work fast; And solenoid valve vacuum measuring instrument control method is prone to cause the waste of argon gas; And its structure is comparatively complicated, and each device is limited working life, easy break-down.

The model utility content

To the deficiency that design is arranged now, the utility model proposes a kind of accurate to inert gas control, and quantitative gas charging valve simple in structure;

A kind of quantitative gas charging valve comprises valve body and cylinder, and said valve body is connected through fixed plate with cylinder; Said cylinder comprises cylinder barrel, moves in the said cylinder barrel and is provided with piston rod, it is characterized in that; Be provided with in the said valve body one run through said valve body the chamber, the axial conducting in said cylinder barrel and chamber, said piston rod moves and is socketed in the said chamber; Said piston rod is provided with the argon gas chamber that stores argon gas; Both sides, said argon gas chamber are provided with seal arrangement, and said valve outer wall is provided with three openings with the conducting of said chamber, and one of them opening is connected with the induction mouthful pressure with detected gas

Preferred as technique scheme, said piston rod and cylinder barrel are through the internal end cover flexible connection.

Preferred as technique scheme, said seal arrangement is the seal ring that is socketed on the said piston rod.

Preferred as technique scheme, said seal ring is one or more.

Preferred as technique scheme, said cylinder barrel is provided with suction port and the air outlet that is connected with high pressure cylinder.

Preferred as technique scheme, said cylinder barrel is provided with outer end cap

The beneficial effect that the technological scheme that the utility model provides is brought is: the piston rod through cylinder moves forward and backward the argon gas chamber; Realize the switching of argon gas, when piston rod moves to left, with the bulb of high pressure argon gas entering vacuum in the argon gas chamber that the argon gas mouth is connected; After accomplishing inflation; Detect the argon pressure in the bulb through an induction mouthful inductor that connects, if underpressure or overvoltage, the pressure of the argon gas that can regulate argon gas mouth connects makes the argon pressure in the bulb suitable.Can realize inflation accurately to inert gas like this, and be convenient to adjustment, of many uses, can be used for long row, long row and the use of round-exhausting machine automatically automatically.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment's technological scheme; To do one to the accompanying drawing that uses among the embodiment below introduces simply; Obviously, below listed accompanying drawing only be some embodiments of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.

Fig. 1 is that the quantitative gas charging valve master who proposes in the present embodiment 1 looks cut away view;

Fig. 2 is the quantitative gas charging valve side view that proposes in the present embodiment 1;

Fig. 3 is that the quantitative gas charging valve A-A that proposes in the present embodiment 1 overlooks cut away view.

Description of reference numerals:

1, valve body 2, piston rod 3, fixed plate 4, internal end cover 5, cylinder barrel 6, outer end cap 7, suction port 8, air outlet 9, small sealing ring 10, argon gas mouth 11, argon gas chamber 12, vacuum port 13, bulb mouth 14, induction mouth 15, big sealing ring

Embodiment

For the purpose, technological scheme and the advantage that make the utility model is clearer, will combine accompanying drawing that the utility model mode of execution is done to describe in detail further below.

Embodiment 1

Referring to Fig. 1, Fig. 2, shown in Figure 3, the utility model proposes a kind of quantitative gas charging valve that charges into quantitative argon gas after vacuumizing to bulb.Comprise valve body 1 and cylinder, said valve body 1 is connected through fixed plate 3 with cylinder, and said cylinder comprises cylinder barrel 5; Move in the said cylinder barrel 5 and be provided with piston rod 2, be provided with in the said valve body 1 one run through said valve body 1 the chamber, said cylinder barrel 5 and the axial conducting in chamber; Said piston rod 2 moves and is socketed in the said chamber; Said piston rod 1 is provided with the argon gas chamber 11 that stores argon gas, and 11 both sides, said argon gas chamber are provided with seal arrangement, and said valve body 1 outer wall is provided with three openings with the conducting of said chamber; Said opening comprises the argon gas mouth 10 that injects argon gas, the vacuum port 12 that is connected with vacuum pump; The bulb mouth 13 that is connected with bulb, wherein, bulb mouth 13 is connected with induction mouth 14 to detect the argon pressure in the bulb.Said seal arrangement is the small sealing ring 9 that is socketed on the said piston rod 2.Said small sealing ring 9 is one or more.Said cylinder barrel 5 is provided with the suction port 7 and air outlet 8 that is connected with high pressure cylinder, and said cylinder barrel is provided with outer end cap 6, states piston rod 2 and flexibly connects through internal end cover 4 with cylinder barrel 5.Said internal end cover 4 outers are provided with big sealing ring 15.Small sealing ring 9 can seal with big sealing ring 15, prevents gas leakage.

The operation of the utility model is such:

Valve body 1 is provided with vacuum port 12, bulb mouth 13, induction mouth 14, argon gas mouth 10; Said vacuum port 12 connects vacuum pump, the air in the bulb that connects on the bulb mouth 13 is extracted be vacuum, suction port 7 air inlets; Piston rod 2 moves to left; The bulb of the high pressure argon gas entering vacuum in the argon gas chamber 11 that is connected with argon gas mouth 10 is after the completion inflation, through the argon pressure in the inductor detection bulb of induction mouthful 14 connections; If underpressure or overvoltage, the pressure of the argon gas that can regulate argon gas mouth 10 connects makes the argon pressure in the bulb suitable.。

What should explain at last is: above embodiment is only in order to the technological scheme of explanation the utility model, but not to its restriction; Although the utility model has been carried out detailed explanation with reference to previous embodiment; Those of ordinary skill in the art is to be understood that: it still can be made amendment to the technological scheme that aforementioned each embodiment put down in writing, and perhaps part technical characteristics wherein is equal to replacement; And these are revised or replacement, do not make the spirit and the scope of each embodiment's technological scheme of essence disengaging the utility model of relevant art scheme.

Claims

1. a quantitative gas charging valve comprises valve body and cylinder, and said valve body is connected through fixed plate with cylinder; Said cylinder comprises cylinder barrel, moves in the said cylinder barrel and is provided with piston rod, it is characterized in that; Be provided with in the said valve body one run through said valve body the chamber, the axial conducting in said cylinder barrel and chamber, said piston rod moves and is socketed in the said chamber; Said piston rod is provided with the argon gas chamber that stores argon gas; Both sides, said argon gas chamber are provided with seal arrangement, and said valve outer wall is provided with three openings with the conducting of said chamber, and one of them opening is connected with the induction mouthful pressure with detected gas.

2. quantitative gas charging valve according to claim 1 is characterized in that, said piston rod and cylinder barrel flexibly connect through internal end cover.

3. quantitative gas charging valve according to claim 1 is characterized in that, said seal arrangement is the seal ring that is socketed on the said piston rod.

4. quantitative gas charging valve according to claim 3 is characterized in that, said seal ring is one or more.

5. quantitative gas charging valve according to claim 1 is characterized in that, said cylinder barrel is provided with suction port and the air outlet that is connected with high pressure cylinder.

6. quantitative gas charging valve according to claim 1 is characterized in that said cylinder barrel is provided with outer end cap.