CN202091536U

CN202091536U - Air source conversion valve

Info

Publication number: CN202091536U
Application number: CN2011201301281U
Authority: CN
Inventors: 梁锐昌
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-04-28
Filing date: 2011-04-28
Publication date: 2011-12-28
Anticipated expiration: 2021-04-28

Abstract

An air source conversion valve comprises a valve body, a conical valve core and an air source conversion adjustment pin. The valve body includes a hollow horizontal base and a valve body base communicated with the horizontal base. A limit structure for controlling the adjustment pin to be in a conversion state of natural gas or petroleum gas is arranged between the valve core and he adjustment pin. The limit structure is a plug perpendicularly installed at the tail end of the adjustment pin and the plug slides in an arc groove of the valve core in rotating mode. The adjustment pin is used for installing an installation hole of the plug and the valve core arc groove for limiting rotating angles of the adjustment pin is easy in processing so that the air source conversion valve is reasonable in structure, convenient to process and low in production cost.

Description

The source of the gas changing valve

[technical field]

The utility model relates to a kind of combustion gas tool parts, refers in particular to used source of the gas changing valve in the combustion gas tool.

[background technique]

In China, along with natural gas line is laid the expansion day by day of scope, use the combustion gas tool of liquefied petroleum gas (LPG) may can not continue because source of the gas is changed to rock gas to use in the past, cause whole combustion gas tool to scrap and cause waste.In order to make the combustion gas tool both be applicable to liquid gas, be applicable to rock gas again, people are provided with the source of the gas changing valve in the combustion gas tool, change source of the gas by the limit structure in the rotation changing valve, limit structure generally adopts two to be 90 degree and to be tightened in that stop screw on the spool realizes, as if become the conversion of source of the gas when the positive stop lug boss that one of them stop screw is nailed on by adjusting when valve core rotation blocks.Because spool itself is smaller, during boring, tapping thereon, not only process more complicated, cause cost of production higher; And bore inclined to one side hole easily and scrap, so the structure of current source of the gas changing valve haves much room for improvement.

[model utility content]

The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of rational in infrastructure, easy to process, source of the gas changing valve that cost of production is low is provided.

In order to solve the technical problem of above-mentioned existence, the utility model adopts following technical proposals:

A kind of source of the gas changing valve, include valve body, taper valve core and source of the gas conversion and regulate nail, wherein valve body includes the horizontal base of hollow and the valve block that communicates with horizontal base, between spool and adjusting nail, be provided with the limit structure that the regulating and controlling nail is in rock gas or petroleum gas transition status, described limit structure is for vertically being installed to the latch of regulating the nail tail end, and latch rotates in the curve bath of spool and slides.

In the improvement project to above-mentioned source of the gas changing valve, the rotation angle of this adjusting nail in the curve bath of spool is 90 degree.

Compared with prior art, the beneficial effects of the utility model are: owing to regulate the mounting hole that nail is used for installing latch, and the processing of the spool curve bath of restriction adjusting nail rotation angle is fairly simple, so structure of the present utility model is more reasonable, easy to process, cost of production is low.

Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:

[description of drawings]

Fig. 1 is the utility model embodiment's an assembling schematic representation;

Fig. 2 is the utility model embodiment's a structural representation (when using liquefied petroleum gas);

Fig. 3 is the utility model embodiment's a structural representation (when using rock gas)

Fig. 4 is the utility model embodiment's a valve core structure schematic representation;

Fig. 5 is that the C-C of Fig. 4 is to sectional view.

[embodiment]

The utility model is a kind of source of the gas changing valve, include valve body 1, taper valve core 2 and source of the gas conversion and regulate nail 3, wherein valve body 1 includes the horizontal base 4 of hollow and the valve block 5 that communicates with horizontal base, between spool 2 and adjusting nail 3, be provided with the limit structure 6 that the regulating and controlling nail is in rock gas or petroleum gas transition status, for vertically being installed to the latch of regulating the nail tail end, latch rotates in the curve bath 21 of spool 2 and slides at this limit structure 6.Adding man-hour, regulating processing one mounting hole on the nail 3 earlier, to regulate nail 3 then and put into spool 2 and make the curve bath 21 of mounting hole towards spool 2, and at this moment just latch can be inserted in the mounting hole, latch its exposed portions serve when rotating can just be kept off in curve bath 21 both sides.

The source of the gas changing valve is when using the petroleum gas state, as shown in Figure 2, latch just keeps off in curve bath 21 1 sides, at this moment regulate nail 3 and turn to the second channel B that its adjustment hole leaves spool, second channel B does not communicate with horizontal base 4 anterior through holes, be that second channel B closes, can only ventilate by first passage A, so just can use liquefied petroleum gas (LPG); And in the time will using rock gas, rotate adjusting nail 3 with screw-driver, when latch is blocked by curve bath 21 the other ends, as shown in Figure 3, this moment, second channel B communicated with horizontal base 4 anterior through holes, so first and second passage A, B ventilate simultaneously, so just can use liquefied petroleum gas (LPG).As can be seen, owing to regulate the mounting hole that nail is used for installing latch, and the processing of the spool curve bath of restriction adjusting nail rotation angle is fairly simple, so structure of the present utility model is more reasonable, easy to process, cost of production is low.

Regulating the rotation angle of nail in the curve bath of spool is 90 degree.

Claims

1. source of the gas changing valve, include valve body, taper valve core and source of the gas conversion and regulate nail, wherein valve body includes the horizontal base of hollow and the valve block that communicates with horizontal base, between spool and adjusting nail, be provided with the limit structure that the regulating and controlling nail is in rock gas or petroleum gas transition status, it is characterized in that: described limit structure is for vertically being installed to the latch of regulating the nail tail end, and latch rotates in the curve bath of spool and slides.

2. source of the gas changing valve according to claim 1 is characterized in that: the rotation angle of this adjusting nail in the curve bath of spool is 90 degree.