JP3206945U - Leak-proof structure for disposable high-pressure gas bottles - Google Patents

Abstract

Disclosed is a single-use type high-pressure gas bottle leakage prevention structure that has high structure strength, has a double safety leakage prevention effect, is easy to operate, has a simple structure and structure of members, and has good portability. provide. A connecting portion is provided at an upper end, a receiving space is provided in the connecting portion, an inner screw portion is provided on an inner peripheral surface of the receiving space, and a receiving space is provided. 13 has a gas bottle body 10 having a pressing surface on the back bottom surface, and a fitting portion 21, and an opening is provided at one end of the fitting portion 21 facing the connecting portion 12. The extending part 23 is provided in the periphery, the sealing member 20 assembled | attached to the accommodation space 13 of the connection part 12, the sealing member 30 fitted and provided in the fitting part 21 of the sealing member 20, and the center Is provided with a perforation 41 capable of accommodating the fitting portion 21 of the sealing member 20, and an outer screw portion 16 that is screwed with the inner screw portion 14 of the gas bottle main body 10 is provided on the outer peripheral surface thereof. And a fixed plug 40. [Selection] Figure 2

Description

  The present invention relates to a structure of a high-pressure gas bottle, and more particularly to a leak-proof structure for a disposable high-pressure gas bottle having a double safety leakage prevention effect.

  The disposable high-pressure gas bottle is convenient to carry and is used to fill tires of paint guns, bicycles, motorcycles and passenger cars. Please refer to FIG. FIG. 4 is a sectional view showing a combined state of a conventional leak-proof structure for a single-use high-pressure gas bottle. The conventional disposable high-pressure gas bottle is composed of a gas bottle body 50, a plug 60 having a sealing piece 61, and an O-ring 70. A bottle mouth portion 51 is provided at the upper end of the gas bottle main body 50. An accommodation space 52 is provided inside the bottle mouth portion 51. The O-ring 70 is assembled to the outer peripheral surface of the plug 60, the plug 60 is assembled to the accommodation space 52 of the bottle mouth portion 51, and the stopper convex edge 53 formed on the edge of the bottle mouth portion 51 is accommodated in the accommodation space. When bent to 52, the stopper convex edge 53 stops the plug 60. As a result, the plug 60 cannot be detached from the accommodation space 52. And since O-ring 70 is assembled | attached, it has an airtight effect and can prevent the leak of the high pressure gas in the inside of the gas bottle main body 50.

  The plug 60 is attached by bending the stopper convex edge 53 formed at the edge of the bottle mouth portion 51 into the accommodating space 52 to stop the plug 60. Since the stopper convex edge 53 is thin and the strength of the structure is low, there is a problem that refraction and tearing are likely to occur.

  On the other hand, gas leakage is prevented only by the O-ring 70 disposed on the outer peripheral surface of the plug 60. However, leakage of high-pressure gas cannot be prevented by the O-ring 70 alone.

  The main object of the present invention is to provide a leak-proof structure for a disposable high-pressure gas bottle having a high structure strength and a double safety leak-proofing effect.

  It is another object of the present invention to provide a leak-proof structure for a disposable high-pressure gas bottle that is convenient to operate, has a simple structure and structure of members, has a small volume, and has good portability.

According to the leak-proof structure for the disposable high-pressure gas bottle of the present invention, the connecting portion is provided at the upper end, the receiving space is provided inside the connecting portion, and the inner screw portion is provided on the inner peripheral surface of the receiving space. A gas bottle main body provided with a pressing surface on the back bottom surface of the accommodation space;
A seal having a fitting portion, provided with an opening at one end facing the connecting portion of the fitting portion, and provided with an extending portion at the outer peripheral edge of the opening of the fitting portion, and assembled in the accommodation space of the connecting portion Members,
A sealing member fitted to the fitting portion of the sealing member;
In the center, a perforation capable of accommodating the fitting portion of the sealing member is provided, and on the outer peripheral surface thereof, a fixed plug provided with an outer screw portion screwed with an inner screw portion of the gas bottle main body,
Including
The connecting part is integrally molded with the gas bottle body,
By screwing the fixed plug into the connecting portion, the bottom surface of the fixed plug is pressed against the sealing member and the extending portion of the sealing member, and is in an airtight state.

  According to the leak-proof structure for a single-use high-pressure gas bottle of the present invention, an outer thread portion is provided on the outer peripheral surface of the connecting portion of the gas bottle main body.

  According to the leak-proof structure for a disposable high-pressure gas bottle of the present invention, the sealing member is integrally formed and employs a metal.

  According to the leak-proof structure for a disposable high-pressure gas bottle of the present invention, the sealing member is made of metal.

  According to the leak-proof structure for a disposable high-pressure gas bottle of the present invention, it further includes an operation portion, and the operation portion is provided on the outer peripheral surface of the fixed plug.

  According to the leak-proof structure for a single-use high-pressure gas bottle of the present invention, the operation part has a hexagonal shape.

According to the leak-proof structure for a disposable high-pressure gas bottle of the present invention, the following effects are obtained.
(1) The strength of the structure is high, and it has a double safety leak prevention effect.

  (2) The operation is convenient, the structure and the structure of the members are simple, the volume is small, and the portability is good.

It is a perspective view which shows the leak prevention structure for disposable high-pressure gas bottles which concerns on this invention. It is a disassembled perspective view which shows the leak prevention structure for disposable high-pressure gas bottles which concerns on this invention. It is sectional drawing which shows the combined state of the leak prevention structure for disposable high-pressure gas bottles concerning this invention. It is sectional drawing which shows the combined state of the conventional leak prevention structure for single-use high-pressure gas bottles.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  Please refer to FIG. 1 to FIG. The leak-proof structure for a disposable high-pressure gas bottle according to the present invention includes a gas bottle main body 10, a sealing member 20, a sealing member 30, and a fixed plug 40.

  The gas bottle main body 10 has a gas storage space 11 that can be filled with high-pressure gas. At the upper end of the gas bottle main body 10, a connecting portion 12 that is integrally formed with the gas bottle main body 10 is provided. A housing space 13 that communicates with the gas storage space 11 is provided inside the connecting portion 12. An inner screw portion 14 is provided on the inner peripheral surface of the accommodation space 13. A pressing surface 15 is provided on the back bottom surface of the accommodation space 13.

  The sealing member 20 has a fitting portion 21. An opening 22 is provided at one end of the fitting portion 21 facing the connecting portion 12. An extending portion 23 is provided on the outer peripheral edge of the opening 22 of the fitting portion 21. A sealing member 20 is assembled in the accommodation space 13 of the connecting portion 12.

  The sealing member 30 is a washer. The sealing member 30 is fitted in the fitting portion 21 of the sealing member 20. Accordingly, the sealing member 30 is located on the upper surface of the extending portion 23 of the sealing member 20.

  In the center of the fixed plug 40, a perforation 41 capable of accommodating the fitting portion 21 of the sealing member 20 is provided, and an outer peripheral surface of the fixed plug 40 is externally engaged with the inner screw portion 14 of the gas bottle main body 10. A screw portion 42 is provided. By screwing the fixed plug 40 into the connecting portion 12, the bottom surface of the fixed plug 40 is pressed against the sealing member 30 and the extending portion 23 of the sealing member 20, so that the airtight state is achieved.

  An external thread portion 16 is provided on the outer peripheral surface of the connecting portion 12 of the gas bottle body 10.

  The sealing member 20 is integrally formed and employs metal.

  The sealing member 30 employs metal.

  Further, an operation unit 43 is included. The operation unit 43 is provided on the outer peripheral surface of the fixed plug 40. A tool (not shown) allows the user to screw or loosen the fixed plug 40.

  The operation unit 43 has a hexagonal shape.

  Next, with reference to FIGS. 1 to 3, a method of using the leakage preventing structure for a disposable high-pressure gas bottle according to the present invention will be described. When the user wants to use the leak-proof structure for the disposable high-pressure gas bottle according to the present invention, when the connecting part 12 of the gas bottle body 10 is assembled at a certain position, the fitting part 21 of the sealing member 20 is broken. The high-pressure gas in the gas bottle body 10 can be used to fill the tires of bicycles, motorcycles, and passenger cars with high-pressure gas. According to the leak-proof structure for a disposable high-pressure gas bottle according to the present invention, the operation is convenient, the structure and the structure of the members are simple, the volume is small, and the portability is good.

  In particular, since the fixed plug 40 is screwed to the connecting portion 12 of the gas bottle body 10, the fastening force between the fixed plug 40 and the connecting portion 12 is good, and the fixed plug 40 does not leave the connecting portion 12. When the fixed plug 40 is screwed into the connecting portion 12, the bottom surface of the fixed plug 40 is pressed against the sealing member 30 and the extending portion 23 of the sealing member 20, so that the airtight state is achieved. Thereby, it is possible to obtain a double safety leak prevention effect, it is possible to completely prevent leakage of high-pressure gas, and the entire configuration is simple.

  The present invention can be applied to a disposable high-pressure gas bottle.

DESCRIPTION OF SYMBOLS 10 Gas bottle main body 11 Gas storage space 12 Connection part 13 Storage space 14 Inner screw part 15 Pressing surface 16 Outer screw part 20 Sealing member 21 Fitting part 22 Opening 23 Extension part 30 Sealing member 40 Fixed plug 41 Perforation 42 Outer screw part 43 Operation part 50 Gas bottle body 51 Bottle mouth part 52 Accommodating space 53 Convex edge 60 Plug 61 Sealing piece 70 O-ring

Claims (6)

A connecting portion is provided at the upper end, a receiving space is provided inside the connecting portion, an inner screw portion is provided on an inner peripheral surface of the receiving space, and a pressing surface is provided on the back bottom surface of the receiving space. A gas bottle body provided with,
An opening is provided at one end of the fitting portion facing the connecting portion, and an extending portion is provided on an outer peripheral edge of the opening of the fitting portion. An assembled sealing member;
A sealing member fitted to the fitting portion of the sealing member;
A perforation capable of accommodating the fitting portion of the sealing member is provided in the center, and an outer screw portion that is screwed with the inner screw portion of the gas bottle main body is provided on the outer peripheral surface thereof. A fixed plug;
Including
The connecting portion is integrally formed with the gas bottle body,
A single-use high-pressure gas bottle characterized in that the bottom surface of the fixed plug is pressed against the sealing member and the extending portion of the sealing member by screwing the fixed plug into the connecting portion. Leak prevention structure.   The single-use high-pressure gas bottle leakage prevention structure according to claim 1, wherein an outer thread portion is provided on an outer peripheral surface of the connecting portion of the gas bottle main body.   The leak-proof structure for a disposable high-pressure gas bottle according to claim 1, wherein the sealing member is integrally formed and employs metal.   The leak-proof structure for a single-use high-pressure gas bottle according to claim 1, wherein the sealing member is made of metal.   The leak-proof structure for a disposable high-pressure gas bottle according to claim 1, further comprising an operation portion, wherein the operation portion is provided on an outer peripheral surface of the fixed plug.   The leakage preventing structure for a disposable high-pressure gas bottle according to claim 5, wherein the operation part has a hexagonal shape.

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