CN2490397Y

CN2490397Y - Safety quickly connector for gas cylinder

Info

Publication number: CN2490397Y
Application number: CN 01249597
Authority: CN
Inventors: 谭锦镛; 江桂新; 黄启照
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-08-28
Filing date: 2001-08-28
Publication date: 2002-05-08
Anticipated expiration: 2011-08-28

Abstract

The utility model discloses a safe and quick connector for gas which comprises a steel cylinder connector and a quick connector. The connectors comprises a rubber mat, a screw plug and a steel cylinder connector, wherein the cavity of the screw plug is provided with a spring seat, the spring seat is provided with a through groove parallel to the central axis, a front top core is arranged in a central hole of the spring seat in a slide mode, a spring is arranged between the front of the front top core and the spring seat, the rear of the front top core is provided with a concave ring groove, an O-shaped ring is arranged in the concave ring groove, and the inner wall of the middle part of the steel cylinder connector is provided with a funneled surface in a sealing coordination with the O-shaped ring. When used, the rubber mat is inserted into an angle valve of the steel cylinder, the rear of the quick connector is connected with the air intake of a pressure regulating valve, and the gas is supplied to a gas stove through the through groove of the spring seat and the inlet hole of the top core from the steel cylinder. When the gas is supplied, the quick connector is separated from the steel cylinder connector and then the gas can be simply supplied by inserting a fueling gun, which greatly improves the speed of gas supply, has good sealing performance as well as safe and reliable use.

Description

Gas safety quick connector

Technical Field

The utility model relates to a gas steel bottle is connected technical field with the gas utensil, especially a gas safety quick connector.

Background

The existing gas safety quick connector comprises a rubber gasket connected with a steel cylinder angle valve, a screw plug and a steel cylinder joint, wherein a tower-shaped spring, a copper ball body and a sealing rubber ring are arranged in an inner cavity of the screw plug, the front part of the copper ball body is designed into a cylinder, the thin end of the tower-shaped spring is sleeved on the cylinder, the rear part of the steel cylinder joint is also provided with a quick joint which comprises a joint body, a steel ball and a steel wire retainer ring arranged on the joint body, an external opening sleeve and an external spring which can move on the outer surface of the joint body, an inner top sleeve and an inner sleeve spring which can move relatively are arranged on the inner tube surface of the joint body, a top core with a central vent hole is arranged in the inner cavity of the joint body, the top core is connected with the front part of the connecting sleeve to form an integral structure, the front end of the connector is contacted with the spherical surface of the copper sphere, the side surface of the connector is provided with four air inlets, the rear part of the connector is in threaded connection with a connecting sleeve with internal threads, and the internal threads are in threaded connection with a valve port of the general gas pressure regulating valve. Three O-shaped rubber sealing rings are arranged in parallel on the sliding matching surface of the rear part of the steel cylinder connector and the middle front part of the top core. The connector with the structure has the following defects: because the turriform spring is located the gas flue, hinders its air current to flow, and this drawback is more prominent when aerifing the steel bottle especially, and the gas filling speed is slow, has seriously influenced gas station's work efficiency.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to keep the gas channel unblocked in the connector at the during operation to improve the speed to the steel bottle air entrainment greatly.

The technical scheme of the utility model is like this: a gas safety quick connector comprises a rubber gasket (2) connected with a steel cylinder angle valve, a screw plug (5) and a steel cylinder connector (6), wherein the rear part of the steel cylinder connector (6) is also provided with a quick connector, the quick connector comprises a connector body (13), steel balls (17) and a steel wire retainer ring (18) arranged on the connector body, an outer opening sleeve (19) and an outer sleeve spring (16) which can move on the outer surface of the connector body (13), an inner top sleeve (15) and an inner sleeve spring (14) which can move relatively are arranged on the inner pipe surface of the connector body (13), a clamping groove is arranged on the outer surface of the steel cylinder connector (6) at a position corresponding to the steel balls (17), a top core (20) with a central vent hole is arranged in the center of the front end of the connecting sleeve (12), an air inlet hole (10) is arranged on the front side surface of the top core (20), the connecting sleeve (12) with an internal, the internal thread is in threaded connection with a valve port of a universal gas pressure regulating valve, three O-shaped sealing rings (11) are parallelly arranged on the sliding matching surface of the rear part of a steel cylinder joint (6) and the middle front part of a jacking core (20), a connecting sleeve (12) is connected with the jacking core (20) to form an integral structure, a spring seat (1) is embedded in an inner cavity of a screw plug (5), a through groove (22) parallel to the central axis of the spring seat is at least arranged on the periphery of the seat body, a front jacking core (7) is slidably arranged in a central hole of the spring seat (1), a spring (3) is arranged between the front part of the spring seat and the spring seat (1), a concave ring groove is arranged at the rear part of the spring seat, an O-shaped sealing ring (8) is arranged on the. The front end of the spring seat (1) is provided with an isobaric hole (21). 2-4 through grooves (22) parallel to the central axis are symmetrically arranged on the periphery of the base body of the spring seat (1).

Compared with the prior art, the utility model discloses it is smooth and easy at the during operation gas air flue, fast to the steel bottle air entrainment, sealing performance is good simultaneously, uses safe and reliable.

Drawings

The following describes a preferred embodiment of the present invention in detail with reference to the accompanying drawings. Wherein,

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a cross-sectional view of fig. 1A-a.

Detailed Description

Examples

Referring to fig. 1 and 2, the utility model discloses a safe quick connector of preferred embodiment gas, including cushion (2) that are connected with steel bottle angle valve, plug screw (5), steel bottle joint (6), it is equipped with spring holder (1) to inlay at plug screw (5) inner chamber, it is called to be equipped with 4 logical grooves (22) that are parallel to its axis around its pedestal, preceding plunger tip (7) slide in the centre bore of spring holder (1), spring (3) are equipped with between one-level step that its front portion was established and spring holder (1) front portion, its rear portion is equipped with two convex shoulders, form the concave ring groove, O type sealing washer (8) are equipped with on this groove, it can with O type sealing washer (8) seal complex funnel face (9) to be equipped with at steel bottle joint (6) middle part inner wall. In order to make the inner cavity of the spring seat (1) have the same pressure as the gas flue during operation, the front top core (7) can freely slide, and therefore, an isobaric hole (21) is drilled at the front end of the spring seat (1). The rear part of the steel cylinder joint (6) is also provided with a quick joint which comprises a joint body (13), a steel ball (17) and a steel wire retaining ring (18) arranged on the quick joint, an external opening sleeve (19) and an external sleeve spring (16) which can move on the outer surface of the joint body (13), an internal top sleeve (15) and an internal sleeve spring (14) which can move relatively are arranged on the inner pipe surface of the joint body (13), a clamping groove is arranged at the position corresponding to the steel ball (17) on the outer surface of the steel cylinder joint (6), a top core (20) with a central vent hole is arranged at the center of the front end of the connecting sleeve (12), four sides of the front part of the top core (20) are respectively provided with an air inlet (10), the rear part of the joint body (13) is in threaded connection with a connecting sleeve (12) with internal threads, the internal threads are in threaded connection with a valve port of a universal gas pressure regulating valve, in order to enhance the sealing performance and ensure the safety, reliability and easy replacement The rubber sealing ring (11), the connecting sleeve (12) and the top core (20) are of an integral structure.

When the pressure regulating valve is used, a universal pressure regulating valve inlet valve port is fixedly connected with a connecting sleeve (12) of a quick connector in a threaded manner, a pressure regulating valve outlet is connected with a gas stove inlet pipe through a rubber pipe, the quick connector is inserted into the rear part of a steel cylinder connector (6), the rear end of the steel cylinder connector (6) props against an inner propping sleeve (15) and enables the inner propping sleeve to move backwards, an inner sleeve spring (14) is further compressed, when the inner propping sleeve (15) retreats away from a steel ball (17) and a clamping groove on the steel cylinder connector (6) is positioned at a corresponding position of the steel ball (17), an outer opening sleeve (19) moves forwards under the action of the elastic force of an outer sleeve spring (16), the steel ball (17) is pressed into the clamping groove by using the inner sleeve wall, the outer opening sleeve (19) moves forwards to be blocked by a steel wire retaining ring (18) and stops, so that the steel cylinder connector (6) and a connector body (13) are clamped together, and at the, the O-shaped sealing ring (8) leaves the funnel surface (9), the spring (3) is in a compressed state, and the fuel gas in the steel cylinder smoothly flows to the air inlet of the pressure regulating valve through the through groove (22) and the air inlet (10) under the condition of sealing the periphery.

When the quick connector part needs to be separated and detached from the connector part of the steel cylinder, the elastic separation can be immediately realized as long as the external opening sleeve (19) is slightly forced to retreat, the working process of the internal parts is opposite to that during the connection, the front ejection core (7) quickly retreats under the action of the spring (3), the O-shaped sealing ring (8) is in sealing connection with the funnel surface (9), and the air passage is safely cut off. When the steel cylinder is aerated, the aerating gun is inserted into the rear part of the steel cylinder joint (6) to open the air passage, thus realizing quick aeration.

Claims

1. A gas safety quick connector comprises a rubber gasket (2) connected with a steel cylinder angle valve, a screw plug (5) and a steel cylinder connector (6), wherein the rear part of the steel cylinder connector (6) is also provided with a quick connector, the quick connector comprises a connector body (13), steel balls (17) and a steel wire retainer ring (18) arranged on the connector body, an outer opening sleeve (19) and an outer sleeve spring (16) which can move on the outer surface of the connector body (13), an inner top sleeve (15) and an inner sleeve spring (14) which can move relatively are arranged on the inner pipe surface of the connector body (13), a clamping groove is arranged on the outer surface of the steel cylinder connector (6) at a position corresponding to the steel balls (17), a top core (20) with a central vent hole is arranged in the center of the front end of the connecting sleeve (12), an air inlet hole (10) is arranged on the front side surface of the top core (20), the connecting sleeve (12) with an internal, this internal thread and general gas pressure-regulating valve port threaded connection, the steel bottle connects in (6) rear portion and ejector core (20) on the anterior sliding fit face parallel be equipped with three O type sealing washer (11), adapter sleeve (12) are connected with ejector core (20) and become overall structure, its characterized in that: the screw plug (5) inner chamber inlays and is equipped with spring holder (1), and its pedestal is equipped with logical groove (22) of a parallel its axis all around at least, and preceding apical core (7) slide and pack into in the centre bore of spring holder (1), is equipped with spring (3) between its front portion and spring holder (1), and its rear portion is equipped with a concave groove to O type sealing washer (8) are equipped with, steel bottle joint (6) middle part inner wall is equipped with and seals complex funnel face (9) with O type sealing washer (8).

2. The gas fired safety quick connector as in claim 1, wherein: the front end of the spring seat (1) is provided with an isobaric hole (21).

3. The gas safety quick connector according to claim 1, wherein: 2-4 through grooves (22) parallel to the central axis are symmetrically arranged on the periphery of the base body of the spring seat (1).