KR200396709Y1 - A safe valve for gas bombe - Google Patents

Abstract

The present invention relates to a safety valve for oxygen supply, in the oxygen supply safety valve for controlling the gas discharge amount is mounted to the inlet of the gas cylinder stored in a high pressure state, the direction in which the user's external force is applied for the gas discharge The needle for maintaining its set position against the upward reaction generated around the upper center of the needle valve due to the injection reaction force of the gas injection by reducing the pushing force of the button for opening the needle valve by increasing the right force while being press-fitted accordingly And a valve holding means, the needle valve holding means including a lever rotatably pivoted at one point with the upper end surface of the needle valve interposed therein and a push button for pressing the opposite end of the rotation point. Needle valve for opening and closing is pressed by the button and lever installed on the valve body upper, safety valve In addition to pressing the needle valve with a smaller force than the valve, by adjusting the degree of protrusion of the bolt to control the opening degree of the needle nozzle by the needle valve to control the amount of gas injected.

Description

Safety valve for oxygen supply {A safe valve for gas bombe}

The present invention relates to a safety valve for oxygen supply, and more particularly to a safety valve for oxygen supply that can inject a gas with a small force.

Generally, a gas cylinder, for example, a gas cylinder in which oxygen is stored under high pressure, is equipped with a safety valve for constantly injecting oxygen. Such a safety valve, the valve body is installed at the inlet of the gas cylinder and the injection nozzle is formed to the side; A needle valve which is elastically biased upward by a spring embedded in the valve body, and selectively opens and closes the injection nozzle as it moves up and down; It is installed on the valve body and consists of a button to press the needle valve. With this configuration, the needle valve opens the injection nozzle when the button is pressed, and oxygen stored in the gas cylinder is injected to the outside through the injection nozzle.

However, in the above-described configuration, since the needle valve is elastically biased upward by the spring, when the oxygen is injected, it was necessary to move the needle valve downward by pressing the button with a force exceeding the elastic force of the spring. Therefore, a lot of power was needed when pressing the button. Therefore, it is very difficult to inject oxygen from the gas cylinder because the elderly, women, or children with weak finger strength cannot press the buttons with strong force.

The present invention has been made to solve the above problems, to provide a safety valve for oxygen supply that can easily inject the gas stored in the gas cylinder, even in the case of the elderly, women, or children with weak finger strength. The purpose.

Another object of the present invention is to provide a safety valve for oxygen supply that can adjust the amount of gas injected.

In order to achieve the above object, the safety valve for oxygen supply according to the present invention,

A valve body mounted at an inlet of a gas cylinder stored at a high pressure, the valve body having a lower chamber and an upper chamber communicating with an inner nozzle in a substantially central state thereof, and an injection nozzle communicating with the upper chamber at a side thereof; A packing member installed at an upper side of the lower chamber and having a through hole formed at a center thereof; A needle valve having a needle protrusion penetrating the through-hole and the inner nozzle of the packing member to the upper chamber, and closing the inner nozzle when in close contact with the packing member; A spring embedded in the lower chamber to apply an elastic bias to the needle valve in close contact with the packing member; An intermediate member installed in the upper chamber to separate the needle valve from the packing member, the media member having a pressing protrusion protruding toward the upper side; A bolt coupled to a screw hole formed at an upper front side of the valve body; A lever on which one end is hooked to the head of the bolt, and the pusher is fitted into a lever hole formed in a center thereof; A button for pressing the other end of the lever; And a cap installed to surround the valve body, and having a spray hole formed at a position corresponding to the spray nozzle, and having a button hole into which the button is inserted. At this time, the intermediate member is provided with a packing ring to be in close contact with the inner wall of the upper chamber to prevent gas leakage.

Hereinafter, the oxygen supply safety valve according to the present invention will be described in detail with reference to the accompanying drawings.

1 is a perspective view showing a state in which the safety valve according to the present invention is separated from the gas cylinder, Figure 2 is a cross-sectional view showing the internal configuration of the safety valve of Figure 1, Figure 3 is a main configuration of the safety valve of Figure 2 4 is a perspective view illustrating a state in which the safety valve of FIG. 2 is coupled to a gas cylinder.

As shown, the safety valve for oxygen supply according to the present invention, the gas is mounted to the inlet (B1) of the gas cylinder (B) stored in a high pressure state, and communicates with the internal nozzle (11) of the approximately center of the inside The lower chamber 12 and the upper chamber 13 are formed, and the injection nozzle 14 communicating with the upper chamber 13 is formed at the side thereof, and the valve body having the screw hole 15 formed at the upper front side thereof. Has (10).

The upper side of the lower chamber 12 is provided with a packing member 20 having a through hole 21 in the center. The packing member is made of a flexible material such as rubber or silicone rubber.

The lower chamber 12 is provided with a needle valve 30 for closing the inner nozzle 11 when in close contact with the packing member 20, the needle valve 30 is a through hole 21 of the packing member 20 And a needle protrusion 31 penetrating the inner nozzle 11 and protruding to the upper chamber 13.

The needle valve 30 is elastically biased in a direction in which the packing member 20 is in close contact with the spring 40 embedded in the lower chamber 12. The spring 40 is supported by a nut 45 screwed to the lower end of the lower chamber.

In addition, the upper chamber 13 is provided with an intermediate member 50 for pressing the needle protrusion 31 protruding from the upper chamber 13 so that the needle valve 30 is separated from the packing member 20. The intermediate member 50 is formed with a pressing protrusion 51 protruding to the upper side. In addition, the intermediate member 50 is provided with a packing ring 55 in close contact with the inner wall of the upper chamber 13 to prevent gas leakage.

The bolt 60 is screwed into the screw hole 15 formed in the upper front side of the valve body 10. The bolt 60 serves as a rotation shaft of the lever 70 to be described later, and the rotation angle of the lever 70 varies according to the degree of protrusion of the bolt 60.

The upper part of the valve body 10 is supported by a bolt 60 is provided with a lever 70 for pressing the intermediate member 50. To this end, one side of the lever 70 is formed with a locking hole 71 which is engaged with the head 60a of the bolt 60, and the fitting hole 72 into which the pressing protrusion 51 of the intermediate member is fitted in the center. Is formed.

One end is hooked to the head 60a of the bolt 60, and a lever 70 is provided to which the pressing protrusion 51 is coupled to the lever hole 71 formed in the center thereof.

The upper portion of the valve body 10 is provided with a button 80 for pressing the other end of the lever 70.

The valve body 10 is surrounded by a cap 90 having an injection hole 94 formed at a position corresponding to the injection nozzle 14 and a button hole 91 into which the button 80 is inserted. The injection hole 94 of the cap 90 may be provided with a suction mask to help the gas suction.

Next, the operation of the oxygen supply safety valve of the above structure will be described.

Usually, the needle valve 30 is in close contact with the packing member 20 by the spring 40 so that the needle nozzle 11 is closed. In this state, the gas inside the gas cylinder is not injected to the outside.

However, when the button 80 is pressed, the other end of the lever 70 is pressed, and the intermediate member 50 is pressed by the push protrusion 51 coupled to the lever 70. At this time, since one side end of the intermediate member 50 uses the head 60a of the bolt 60 as the rotation shaft, the lever 70 can be pressed only by applying a small force to the button 80. That is, the elderly, women, young children with weak finger strength can press the button 80.

Then, the intermediate member 50 presses the needle protrusion 31, and the needle valve 30 is separated from the packing member 20. Then, the gas inside the gas cylinder B passes through the lower chamber 12-> the inner nozzle 11-> the upper chamber 13, and then is sprayed to the outside through the injection nozzle 14 and the injection hole 94. do.

At this time, when adjusting the amount of gas to be injected, by adjusting the degree of protruding from the screw hole 15 of the bolt 60, it is possible to change the rotation angle of the lever 70, thereby adjusting the range pressed.

For example, if the bolt 60 is protruded more than necessary to the valve body, the pivot shaft of the lever 70 is located in the upper portion, and the intermediate member 50 is pressed down when the button 80 is pressed, thereby reducing the gas. Injection amount becomes small. However, if the bolt 60 protrudes less than necessary to the valve body below the need, the pivot shaft of the lever 70 is located at the lower side and the intermediate member 50 is pressed a lot when the button 80 is pressed. Therefore, the amount of gas injection increases.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible.

According to the safety valve for oxygen supply according to the present invention, the needle valve for opening and closing the injection nozzle is pressed by the button and lever installed on the valve body, it is possible to press the needle valve with a smaller force than the conventional safety valve . Therefore, even in the case of the elderly, female, or small children with weak finger strength, the gas stored in the gas cylinder can be easily injected.

In addition, it is possible to adjust the degree of opening of the needle nozzle by the needle valve by adjusting the degree of protrusion of the bolt has the effect of controlling the amount of gas injected.

1 is a perspective view showing a state in which the safety valve according to the present invention is separated from the gas cylinder,

2 is a cross-sectional view showing the internal configuration of the safety valve of FIG.

Figure 3 is an exploded view showing the main configuration of the safety valve of Figure 2,

Figure 4 is a perspective view showing a state in which the safety valve of Figure 2 is coupled to the gas cylinder.

<Explanation of symbols for main parts of the drawings>

10 ... valve body 11 ... internal nozzle

12 ... lower chamber 13 ... upper chamber

14 ... Injection nozzle 15 ... Screw hole

20 ... Packing member 21 ... Through hole

30 ... needle valve 31 ... needle protrusion

40 ... spring 45 ... nut

50 ... intermediate member 51 ... pusher

55 ... packing ring 60 ... bolt

60a ... head 70 ... lever

71 ... engagement hole 72 ... insertion hole

80 ... button 90 ... cap

91 ... buttonhole 94 ... nozzle

Claims (3)

In the safety valve for oxygen supply is installed in the inlet of the gas cylinder stored in a high pressure state to control the gas discharge amount,  Increasing the right force while reducing the pushing force of the button for opening the needle valve by press-fitting in the direction in which the user's external force is applied for gas discharge, thereby increasing the pressure generated around the top center of the needle valve due to the injection reaction force of the gas injection. A needle valve holding means for maintaining its set position against the reaction force, The needle valve holding means is a safety valve for oxygen supply, characterized in that it comprises a lever rotatably pivoted one point across the upper end surface of the needle valve and a push button for pressing the opposite end of the rotation point. The method of claim 1, The needle valve holding means includes: a valve body in which a lower chamber and an upper chamber are formed in communication with an inner nozzle in a substantially center portion thereof, and an injection nozzle in communication with the upper chamber is formed at a side thereof; A packing member installed at an upper side of the lower chamber and having a through hole formed at a center thereof; A needle valve having a needle protrusion penetrating the through-hole and the inner nozzle of the packing member to the upper chamber, and closing the inner nozzle when in close contact with the packing member; A spring embedded in the lower chamber to apply an elastic bias to the needle valve in close contact with the packing member; An intermediate member installed in the upper chamber to separate the needle valve from the packing member, the media member having a pressing protrusion protruding toward the upper side; A bolt coupled to a screw hole formed at an upper front side of the valve body; A lever on which one end is hooked to the head of the bolt, and the pusher is fitted into a lever hole formed in a center thereof; A button for pressing the other end of the lever; And It is installed so as to surround the valve body, the injection port is formed in a position corresponding to the injection nozzle, the button is formed a button hole for inserting the button; oxygen supply safety valve comprising a. The method according to claim 1 or 2, The intermediate member is in close contact with the inner wall of the upper chamber is provided with a safety ring for oxygen supply, characterized in that the packing ring is installed to prevent the leak.