JPH06123391A - Gas type quick coupling unit - Google Patents

Abstract

PURPOSE:To double the moving width (sliding quantity) of a check valve provided in a socket, by working the moving width in cooperation with a slide ring for supporting the check valve, in the socket and plug forming a gas type quick coupling unit. CONSTITUTION:Linear grooves having required widths are formed on the respective inner and outer walls of the socket body 1 and slid ring 5 of a socket, and the moving width of the slide ring 5 to the socket body 1 is doubled by a stop ring 9 fitted to both the grooves. Since the moving width of the slide ring is doubled, thus, the kind of connector plug to be connected thereto can be diversified.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a quick coupling, and more specifically, it is desirable that a longitudinal movement width between a socket body of a socket and a slide valve is formed in each of the socket body of the socket and the slide ring of the slide valve. The present invention relates to a quick joint in which a groove width and a stop ring provided in both grooves are added to each groove width and groove width.

According to the present invention, the valve member in the plug body of the plug, which is joined to the socket body of the socket to form the joint, is set to a position other than the specified position with respect to the valve member. It is possible to bring out a complete joint structure even for plugs that have such a structure.

[0003]

2. Description of the Related Art In a conventional quick joint, the movement width of a slide valve (including a check valve) provided in a socket is determined by a plug joined to the socket, and the movement width is a specific width. Was prescribed to be.

[0004]

The present invention is also applicable to plugs having different insertion lengths which are joined to the slide valve provided in the socket body of the socket by configuring the slide valve so as to have a certain allowance. It seeks to provide such a socket.

[0005]

The basic groove of the socket member of the quick joint according to the present invention is shown in FIG. Reference numeral 10 in the figure denotes a socket, which is composed of a main body 1, a cap 3 for opening and closing the ball 2, a slide ring 5 provided with a slide valve 4, and a valve rod 6.

The mutual relationship between the above-mentioned components will be described below. A through hole 12 is provided in a connecting side shaft 11 of the hose or the like of the socket body 1, and a valve rod 6 is provided on the other side of the plug connecting side. The through hole 61 provided in the valve rod and the above It communicates with the through hole 12 on the hose connecting side.

Further, a ball 2 which can be opened and closed by an opening / closing cap 3 is held in a cylindrical shape on the cylindrical wall of the socket body 1 and has a function of promptly joining a plug (not shown), which has a known structure. Is.

A groove 7 having a length of l ₁ is formed substantially in the center of the inner wall of the cylindrical wall of the socket body, and a stop ring 9 is fitted in the groove 7. Reference numeral 13 is an O-ring 31 and a spring.

The slide ring 5 is formed as a cylindrical body, and the slide valve 4 is integrally formed in the substantially central portion of the cylindrical body, and an O-ring 41 is provided on the valve surface of the slide valve. , This O-ring is the valve rod surface 6 of the valve rod
It is attached so as to retain the sealing function with respect to 1.

A groove 8 having a length of l ₂ is provided substantially in the center of the cylindrical wall of the slide ring 5, and the stop ring 9 fitted into the inner wall of the socket described above is provided in the groove. Has been inserted. Therefore, as described above, the stop ring 9 maintains the right end of the groove 7 of the socket and the left end of the groove 8 of the slide ring so as to face each other. Reference numeral 51 is a spring for urging the slide ring 5 in a pressing manner.

[0011]

The operation of the socket, which is a constituent member of the quick joint of the present invention, will be described below with reference to FIG. As is apparent from the figure, the width obtained by adding the groove width l ₁ of the socket groove having the width L and the groove width l ₂ of the slide ring which allows the slide ring 5 in the state of FIG. 1 to move to the left side of FIG. L = l ₁ + l ₂ .

As described above, the amount of movement of the slide ring 5 can be made extremely large by interposing the stop ring 9 between the grooves 7 and 8.

The stop ring 9 is formed as an elastic ring, and the depths of the both grooves described above with respect to the ring diameter are each formed to be approximately 1/2 diameter. Therefore, the socket according to the present invention can be applied to various types of plugs having different insertion depths when the plugs joined to the sockets are joined.

[0014]

FIG. 3 shows a case where the socket according to the present invention is used for charging CFC gas or lubricating oil, and the socket is directly adapted to a valve with a charging port of a car air conditioner or a room air conditioner.

As shown in the figure, the basic structure of the socket 10 has the structure shown in FIG. 1, but a rotatable hose member 30 is attached to the connecting side shaft 11 such as a hose. The hose member 30 has a base portion on the shaft 11 and a stopper 1
7, a hose connecting pipe 17 pivotally connected via 7, a hose H connected to the connecting pipe, and a hose pressing sleeve 18
And an O-ring 16.

By making the hose member rotatable, it is possible to easily perform work in a narrow space, for example, for gas charging of an automobile.

FIG. 4 shows a plug adapted to the socket according to the present invention, and the structure thereof will be described as follows. Reference numeral 20 indicates a plug, which includes a plug body 21 and a spring 24 in the plug body.
It is formed by a valve body 25 having a valve 26 that is biased to a valve and a connecting portion 40 to a charging port such as CFC.

Reference numeral 22 is a fitting groove for the ball of the socket, and 23 is a valve seat having a sealing function. When the charging port of a cylinder of lubricating oil or the like has a plug structure, the socket of the present invention can be used directly.

[0019]

According to the present invention, the structure of the socket constituting the joint member and the socket among the plugs has a socket body and a slide ring provided with a slide valve provided in the socket body with widths l ₁ and l ₂ , respectively. Since the groove groove is provided and the stop ring common to both grooves is formed to intervene, the movement width (slide amount) L of the slide ring
Since = l ₁ + l ₂ , the number of types of adaptors of the plug joined to this socket can be extremely increased.

When the socket according to the present invention is applied to a filling port for CFC gas or lubricating oil used for filling an air conditioner of an automobile, for example, the filling port is equipped with a plug with a check valve. In this case, if the valve member can be directly joined to it, and is equipped with a screw type valve member, the socket is connected to the socket by an adapter adapted to the valve member and a plug having a connection portion adapted to the adapter. The joint relationship can be maintained.

When the socket according to the present invention is used for injecting CFC gas into an air conditioner of an automobile, a rotatable hose member is attached to a connecting side shaft of the socket so that a filling work in a small automobile interior space can be performed. Can be done easily.

[Brief description of drawings]

FIG. 1 is a sectional view of essential parts of a basic structure of a socket according to the present invention.

FIG. 2 is an operation explanatory view.

FIG. 3 is an essential part cross-sectional view of a socket, showing an embodiment of a quick joint according to the present invention.

FIG. 4 is an essential part cross-sectional view of a plug showing an embodiment of a quick joint according to the present invention.

[Explanation of symbols]

1 Socket body 2 Ball 3 Cap 4 Slide valve 5 Slide ring 6 Valve rod 7 Groove with width l ₁ 8 Groove with width l ₂ 9 Stop ring 10 Socket 11 Joint side shaft 20 Plug 21 Plug body 23 Valve seat 25 Valve body 26 valve 30 hose member 40 connection part

Claims (3)

[Claims] 1. A quick joint comprising a socket and a plug, wherein a groove 7 having a width of l ₁ is formed on an inner peripheral surface of a socket body 1 of a socket 20, and the socket body is slidably fitted in the socket body. A groove 8 having a width of l ₂ is formed on the outer peripheral surface of the cylindrical wall of the slide ring 5, and a stop ring 9 common to both grooves 7 and 8 is interposed to move the slide ring with respect to the socket body 1 (slide amount). L is L = l ₁ + l ₂
A quick joint characterized by 2. A quick coupling characterized in that a rotatable hose member 30 is provided on the connecting side shaft of the socket according to claim 1. 3. The quick joint according to claim 1, wherein an attachment connecting portion 40 is provided at an end portion of the plug.