CN2114073U

CN2114073U - Safety gas valve

Info

Publication number: CN2114073U
Application number: CN 92202634
Authority: CN
Inventors: 金永汶
Original assignee: Individual
Current assignee: Pu Yingji
Priority date: 1991-01-05
Filing date: 1992-01-04
Publication date: 1992-08-26

Abstract

The utility model provides a safe gas valve for gas pipelines. A threaded part is processed on an outlet area. The threaded part is in dismountable screwing with a component which cuts off the gas in sealing. When the use gas cooker is dismounted and the gas valve is not used fora long time, the outlet is simply and reliably sealed, and the danger accident generated by the misoperation of the air valve is avoided.

Description

Safety gas valve

The utility model relates to a kind of safety air vavle, particularly with have except that gas cutting-off valve that at gas outlet the safety air vavle of the parts that sealing cuts off combustion gas to be housed removably relevant.

Supply with at the same time in the apartment houses such as apartment of each tame kitchen range combustion gas, owing to reasons such as user's removals of home, can occur a period of time not use the situation of combustion gas, in this case, civil gas management person or authority just take obsolete kitchen range away, and the long-term rotation of only remaining air valve need not.If negligent supervision or operate and wrong gas leakage will take place, be the peril of the gas explosion that prevents to produce because of gas leakage, just the air valve body is thoroughly pulled down from gas pipeline, the hole that will dismantle on the gas pipeline at air valve place with sealed cap or sealing plug is blocked then.

Yet in this case, the user whenever removes once family, and the air valve body will be pulled down once from gas pipeline, refill the last time, and this not only bothers very much, and elapsed time and labour force.And, because of on pipeline during the dismounting air valve or when the sealed cap that cuts off combustion gas, sealing plug are installed, all need apply sizable power, this fixing belt that fixing tube is used gets loose, and makes the pipeline joint-seam place produce distortion, from and cause a reason of leaking combustion gas.In addition, be used for the sealed cap and the sealing plug in blocking pipe hole, not too note just easily losing in keeping, this also causes waste economically.

Therefore, in order to eliminate above-mentioned shortcoming, the purpose of this utility model is to provide a kind of and will pull down from gas pipeline by air valve, can seal the outlet of air valve, can open and close the safety air vavle of this outlet again easily.

In order to realize above-mentioned purpose, the safety air vavle that the utility model gas pipeline is used is provided with fuel gas inlet, gas outlet, the handle of combustion gas opening/shutting valve and manipulation combustion gas opening/shutting valve, and process helical thread portion in the gas outlet zone, on this helical thread portion, removably be screwed with the parts that combustion gas is cut off in sealing.

Fig. 1 is the perspective view of safety air vavle of the present utility model, and its part is an exploded view;

Fig. 2 is Fig. 1 sectional arrangement drawing;

Fig. 3 is the part sectioned view of Joystick, it shown the sealing plug screw in this handle, be in accommodate the keeping state in;

Fig. 4 is the embodiment's of another a safety air vavle of the present utility model perspective view, and its part is an exploded view;

Fig. 5 is the sectional arrangement drawing of Fig. 3;

Fig. 6 is that safety air vavle is contained in the phase diagram on the pipeline.

Below, in conjunction with the accompanying drawings the utility model is described in detail.

Fig. 1 and Fig. 2 are an embodiment's of the utility model safety air vavle perspective view (it is local to be exploded view) and sectional arrangement drawings.

As shown in the figure, air valve 1 is provided with: be used to connect steam line intake section 5, be used to connect usefulness such as kitchen range flexible pipe attachment portion 2 and be used to handle the handle 12 of the combustion gas opening/shutting valve in the air valve.And in outlet 3 zones that the end of attachment portion 2 forms, process female thread 4 in inner-diameter portion whose, on this female thread 4, be screwed with the plug screw 8 of band external screw thread 6, the seal ring 10 and the packing ring 16 of sealing outlet 3 are housed between outlet 3 and plug screw 8.

Connect the flexible pipe of usefulness from the situation that pull down the attachment portion 2 of air valve 1 at gas range such as baking boxs, just in the situation that gas range etc. and air valve 1 do not join, when the handle 12 of manipulation cut-out gas valve places off-position (Fig. 1 state), meanwhile will export 3 and seal up with plug screw 8, seal ring 10 and packing ring 16.Like this, not the air valve 1 that joins with kitchen range that use combustion gas etc., both made when Joystick 12 is not noted by misoperation, valve is opened because outlet 3 sealed by plug screw 8 grades, so combustion gas can not leak outside, thereby can avoid the accident that meets accident.

Therefore, when not using air valve 1, do not need to resemble and air valve 1 body is pulled down from steam line the prior art, thereby can eliminate because of dismounting man-hour of consuming of toilet and not because of the damage of dismounting to pipeline and pipeline fixing device, and blanket gas valve outlet port 3 very simply easily.So just realized intended purposes of the present utility model.

When the flexible pipe of kitchen range that use combustion gas etc. needs be connected with air valve 1, connect flexible pipe on 3 and get final product exporting again after the plug screw 8 of sealing outlet 3 pulled down.

Particularly such as shown in Figure 1 to Figure 3, can will be placed in and handle the sunk part 14 that the handle 12 that cuts off gas valve is processed into from exporting 3 plug screws of pulling down 8, obturator 10,16.This sunk part 14 has the female thread part 15 that matches with the male screw portion 6 of plug screw 8, and its bottom has installs the hole be used for screw 13 that Joystick 12 and valve are partly tightened together.

Therefore, when using combustion gas, need not protect, it is inserted in the sunk part 14 that is screwed on the above-mentioned Joystick 12 simply get final product with other approach from exporting 3 plug screws of pulling down, 8 parts such as grade.This not only can be avoided it to lose, can be easily with the close outlet 3 of its envelope when needing.

For realizing same purpose, in Fig. 4 and Fig. 5, shown another embodiment different with Fig. 1 to Fig. 3, i.e. the outlet 3 of air valve 1 is not by plug screw 8 but by 22 sealings of cylindricality nut.For this reason, on the attachment portion 2 of air valve 1, process in male screw portion 20, the cylindricality nut 22 and process female thread part 21.The advantage of using the cylindricality nut is that it is easy to process when processing male screw portion 20 on the attachment portion 2 of air valve 1.

And, for the ease of dismounting, on plug screw 8 or cylindricality nut 22, should process the screw-driver insertion groove of the hexagon pit that reverses usefulness or "-", "+" shape.In addition, the left-handed thread that preferably adopts general user not back out easily of the screw thread on attachment portion 2 and plug screw 8 or the cylindricality nut.

As mentioned above, according to safety air vavle described in the utility model, when not using combustion gas, thus can be simply and easily prevented with plug screw or cylindricality nut sealing outlet above-mentioned such because of not using air valve that air valve is pulled down the pipeline that caused and the damage of pipeline fixing device.Simultaneously, because of on Joystick, being provided with the part of accommodating of holding when using combustion gas the plug screw pulled down from the air valve outlet,, also being convenient to it and reusing so can avoid sealing with the losing of plug screw.

Claims

1, the safety air vavle used of a kind of gas pipeline, handle with fuel gas inlet, gas outlet, combustion gas opening/shutting valve and manipulation combustion gas opening/shutting valve, it is characterized in that: process helical thread portion in the gas outlet zone, the parts that combustion gas is cut off in the sealing of removably screwing on this helical thread portion.

2, safety air vavle as claimed in claim 1 is characterized in that: between the parts of above-mentioned cut-out combustion gas and the above-mentioned gas outlet seal ring is housed.

3, safety air vavle as claimed in claim 1 is characterized in that: the helical thread portion of above-mentioned gas outlet is an external screw thread, and the parts of above-mentioned cut-out combustion gas are the cylindricality nuts that has the female thread that matches with above-mentioned external screw thread.

4, safety air vavle as claimed in claim 1 is characterized in that: the helical thread portion of above-mentioned gas outlet is a female thread, and the parts of above-mentioned cut-out combustion gas are the plug screws that has with the external screw thread of above-mentioned female thread.

5, safety air vavle as claimed in claim 1 is characterized in that: process the depression that can be screwed into above-mentioned plug screw on the handle of above-mentioned manipulation combustion gas opening/shutting valve and accommodate part.