TWI658232B - Anti-leakage structure improvement of disposable high-pressure gas cylinder - Google Patents

Abstract

The invention relates to a "retrofit of a leak-proof high-pressure gas cylinder leakage prevention structure", which is composed of a gas cylinder body, a mouthpiece, a sealing member and a fixing plug; the sealing member has a set portion, and the sleeve portion faces the gas The connecting portion of the bottle body has an opening at one end, and the sleeve portion has an extending portion at the outer periphery of the opening, and the sealing member is installed in the connecting portion, and the sealing member is sleeved on the sleeve portion of the sealing member, and the outer periphery of the fixing plug is provided with An external thread portion is screwed into the inner thread portion of the cylinder body, and the fixing plug is screwed in the connecting portion, so that the bottom surface of the fixing plug is pressed against the extending portion of the sealing member and the sealing member to form an airtight state; thereby, It has better structural fastening force, double safety leakage prevention effect, convenient operation, simple component assembly, light weight and convenient carrying.

Description

Anti-leakage structure improvement of disposable high-pressure gas cylinder

The invention relates to a "anti-leakage structure improvement of a disposable high-pressure gas cylinder", in particular to a high-pressure gas cylinder structure with double safety leakage prevention effect.

According to the present, disposable high-pressure gas cylinders can be carried by users, and can be used for paintball guns and tires of bicycles and automobile locomotives; as shown in the fourth figure, it is a conventional disposable high-pressure gas cylinder structure. The utility model is composed of a cylinder body 50, a plug body 60 of a sealing piece 61 and an O-ring 70. The top end of the cylinder body 50 has a bottle mouth portion 51, and the bottle mouth portion 51 has a receiving portion therein. After the O-ring 70 is installed on the outer periphery of the plug body 60, the plug body 60 is installed in the accommodating space 52 of the bottle mouth portion 51, and the end edge of the bottle mouth portion 51 is used. The formed flap 53 is bent toward the accommodating space 52, so that the rib 53 blocks the plug body 60, so that the plug body 60 does not come out of the accommodating space 52, and the O-ring 70 is installed. It has a gas-tight effect to avoid leakage of high-pressure gas in the cylinder body 50.

Since the mounting and positioning manner of the conventional plug body 60 is bent toward the accommodating space 52 by the rim 53 formed by the edge of the mouth portion 51 to block the plug body 60, the rib 53 is thin overall and has poor structural strength. And it is easy to cause problems of bending or breaking.

In addition, it uses only the O-ring 70 installed on the outer periphery of the plug body 60 to perform gas leakage, but the O-ring 70 itself cannot withstand the pressure of the high-pressure gas, and thus is easy. The problem of high-pressure gas leakage is caused; therefore, the various shortcomings of the above-mentioned conventional ones are necessary for further improvement.

The inventor has in view of the current improvement of the conventional structure, so he has been engaged in the multi-year production and sales experience of related products, and for the existing problems, the method of pondering improvement has finally created a kind of abandonment after many improvements and tests. The high pressure gas cylinder has improved leakage prevention structure.

Accordingly, the main object of the present invention is to provide an improved leak-proof structure of a disposable high-pressure gas cylinder having a better structural fastening force and having a double safety leak-stopping effect.

Another object of the present invention is to provide an improved leakage prevention structure of a disposable high-pressure gas cylinder which is easy to operate, simple in assembly, and compact in size and convenient to carry.

In order to achieve the above object, the present invention provides an improved leak-proof structure of a disposable high-pressure gas cylinder, comprising: a cylinder body having a connecting portion integrally formed with the cylinder body, the connecting portion having an internal portion An accommodating space, the inner edge surface of the accommodating space is provided with an internal thread portion, and the bottom surface of the accommodating space has an abutting surface; and a mouthpiece having a set of parts facing the connecting portion One end has an opening, and the sleeve has an extension at a periphery of the opening, and the sealing member is disposed in the receiving space of the connecting portion; a sealing member is sleeved on the sealing member a fixing portion having a through hole at the center of the fixing plug for receiving the sleeve portion of the sealing member, and a peripheral edge of the fixing plug is provided with a threaded portion of the inner portion of the cylinder body The external thread portion is provided in the connecting portion by the fixing plug, so that the bottom surface of the fixing plug is pressed The seal and the extension of the closure member are made to be in an airtight state.

Wherein, the outer peripheral edge of the connecting portion of the cylinder body is provided with an external thread portion.

Wherein, the sealing member is made of an integrally formed metal material.

The seal is made of metal.

It may further include an operation portion that is disposed at a peripheral set position other than the fixed plug.

The operation portion is an outer hexagon.

The drawings in accordance with the preferred embodiments of the present invention are further described below in order to enable those skilled in the art to practice the invention.

(part of the invention)

10‧‧‧ gas cylinder body

11‧‧‧ gas storage space

12‧‧‧Connecting Department

13‧‧‧ accommodating space

14‧‧‧Threaded Department

15‧‧‧Abutment

16‧‧‧External thread

20‧‧‧Seal

21‧‧‧ Sets

22‧‧‧ openings

23‧‧‧Extension

30‧‧‧Seal

40‧‧‧Fixed plug

41‧‧‧through hole

42‧‧‧External thread

43‧‧‧Operation Department

(previous part)

50‧‧‧ gas cylinder body

51‧‧‧ Bottle mouth

52‧‧‧ accommodating space

53‧‧‧Fange

60‧‧‧ body

61‧‧‧Filling

70‧‧‧O-ring

The first figure is a schematic view of the stereoscopic appearance of the present invention.

The second drawing is a perspective exploded view of the present invention.

The third figure is a schematic cross-sectional view of the combination of the present invention.

The fourth figure is a schematic cross-sectional view of a conventional structure.

First, please refer to the first to third figures, which is a leakage-proof structure improvement of a disposable high-pressure gas cylinder, which comprises: a cylinder body 10 having a high-pressure gas filled therein. a gas storage space 11 having a connecting portion 12 integrally formed with the gas cylinder body 10 at the top end of the gas cylinder body 10, the interior of the connecting portion 12 having an accommodating space 13 communicating with the gas storage space 11 The inner edge surface of the accommodating space 13 is provided with an internal thread portion 14, and the inner bottom surface of the accommodating space 13 has an abutting surface 15; a mouthpiece 20 having a sleeve portion 21 having an opening 22 toward one end of the connecting portion 12, and the sleeve portion 21 having an extension portion 23 on the outer periphery of the opening portion 22 The sealing member 20 is mounted on the receiving space 13 of the connecting portion 12 such that the bottom surface of the extending portion 23 abuts against the abutting surface 15; a sealing member 30, which is a hollow sealing piece, The sealing member 30 is sleeved on the sleeve portion 21 of the sealing member 20 so that the sealing member 30 can be located on the top surface of the extending portion 23 of the sealing member 30; a fixing plug 40 having a central portion of the fixing plug 40 for the purpose The sleeve portion 21 of the sealing member 20 receives the through hole 41, and the outer periphery of the fixing plug 40 is provided with a threaded portion 42 which is screwed with the internal thread portion 14 of the cylinder body 10, and the fixing plug is provided by the fixing plug 40 is screwed into the connecting portion 12, so that the bottom surface of the fixing plug 40 is pressed against the sealing member 30 and the extending portion 23 of the sealing member 20 to form an airtight state.

The outer peripheral edge of the connecting portion 12 of the cylinder body 10 is provided with an external thread portion 16.

The sealing member 20 is made of an integrally formed metal material.

The seal 30 is made of a metal material.

The operation portion 43 is further disposed at a peripheral setting position of the fixing plug 40, so that the operator can perform the screwing or unscrewing operation of the fixing plug 40 by using a tool (not shown). .

The operation unit 43 is an outer hexagon.

With the above combination, please refer to the first to third figures. When the user wants to use the high-pressure gas cylinder of the present invention, it is only necessary to directly connect the cylinder body 10 The connecting portion 12 is installed at the set position, so that the sleeve portion 21 of the sealing member 20 is pierced, and the high-pressure gas of the cylinder body 10 can be used for rapid inflation of the bicycle or the steam locomotive, and the overall operation mode is simple and convenient, and It is convenient for users to carry around with them, which is convenient and practical.

It should be noted that, in the present invention, the fixing plug 40 is screwed into the connecting portion 12 of the cylinder body 10, so that the structural fastening force between the fixing plug 40 and the connecting portion 12 is better without separation. The problem of the occurrence of the escape occurs, and after the fixing plug 40 is fixed, the bottom surface thereof is pressed against the sealing member 30 and the extending portion 23 of the sealing member 20 to form an airtight state, thereby forming a double safety leak preventing effect, and no high pressure is generated at all. The problem of gas leakage is simple and practical.

In summary, the leakage prevention structure of the disposable high-pressure gas cylinder of the present invention is improved, and various disadvantages of the conventional structure are effectively improved, and the main technical means of the present invention are not found in any related publications, and the application for the invention patent is met. The essentials, 提出 apply in accordance with the law, and ask the 钧 赐 to grant the patent right of the invention.

Claims (3)

An improved leakage prevention structure of a disposable high-pressure gas cylinder comprises: a cylinder body having a connecting portion integrally formed with the cylinder body at the top end of the cylinder body, wherein the outer circumference of the connecting portion of the cylinder body is provided with an external thread portion And the inside of the connecting portion has an accommodating space, the inner edge surface of the accommodating space is provided with an internal thread portion, and the bottom surface of the accommodating space has an abutting surface; and an opening member having a set of portions The sleeve has an opening toward one end of the connecting portion, and the sleeve has an extending portion at a periphery of the opening, and the sealing member is disposed in the receiving space of the connecting portion; a sealing member, the sealing member The sleeve is sleeved on the sleeve portion of the sealing member; the outer peripheral edge is provided with a fixing plug of the outer hexagonal operation portion, and the center of the fixing plug has a through hole for receiving the sleeve portion of the sealing member, and the fixing An outer threaded portion is provided on the outer periphery of the plug to be screwed to the inner thread portion of the cylinder body, and the fixed plug is screwed into the connecting portion to press the bottom surface of the fixing plug against the sealing member and the sealing member Extension An airtight state. The anti-leakage structure of the disposable high-pressure gas cylinder according to the first aspect of the patent application is improved, wherein the sealing member is an integrally formed metal material. The anti-leakage structure of the disposable high-pressure gas cylinder according to the first aspect of the patent application is improved, wherein the seal is made of metal.