JPH0979449A - Piping connecting joint - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate troubles taking place when a movable hose is connected, and eliminate every equipment and device for connection works by arranging a plurality of socket members consisting of a pawl wall in the diameter enlarging chamber of a joint main body, and letting the aforesaid members be inwardly packaged. SOLUTION: Each cylindrical socket member 5 made of elastic material, is formed with a pawl wall 5' which has a slit 5" in the circumferential wall at its tip end side, and provides inward energization, a plurality of the cylindrical socket members are arranged in a space enclosed by the circumferential surface of a diameter enlarging chamber 1', a brim wall 2" at the side of a nipple member 2, and a saw teeth surface 3 on which a movable hose P' is mounted, within the inside of the diameter enlarging chamber 1', and the aforesaid members are inwardly packaged in such a way as to be engagingly pressed in an elastic energizing manner. Meanwhile, a cylindrical release member 6 is engaged with the shaft core hole 1''' of a rear end part formed by the joint main body 1, the aforesaid member presses the pawl wall 5' ahead when the connection of the movable hose P' is released, and moves it so as to allow an engagingly pressing condition between the pawl wall 5' of the cylindrial socket member 5 and the movable hose P' to be released. By this constitution, connection at the movable hose P' side can thereby be made reliable, and also can be made simple.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention generally relates to a metal having a relatively small diameter of about 20 m / m or less, which is a pipe diameter provided as a supply passage for oil supply and air supply in automobiles or various machines and devices. The present invention relates to a pipe connection joint between a pipe and a flexible hose such as a resin tube or a rubber hose.

[0002]

2. Description of the Related Art Conventionally, as a connection joint of this type, as shown in FIG. 6, for example, a metal pipe (P ₀ ) provided at one end is connected to a communication hole (11 ') and is distributed to a shaft core portion. A nipple member (11) having a hole (12 '), a collar-shaped hanging wall (12 ") provided on the outer peripheral portion, and a cylindrical wall (12) forming a sawtooth surface (13) protruding from the tip end side thereof. ), The connecting portion of the flexible hose (P ₀ ') inserted into the tubular wall portion is hooked on the hanging wall (12 ") portion and adhered to the tubular socket member (14). It was configured so that it would be connected by pressing down.

[0003]

However, in such a conventional technique, caulking at the socket member (14) causes troublesome work, and does not require these facilities and devices. When the flexible hose (P ₀ ') in the installed and used condition is cracked, broken or aged, the joint must be destroyed and the replacement must be replaced. There was a problem.

The present invention has been made in view of the above problems of the prior art, and a plurality of socket members for forming a claw wall, particularly a claw wall, in a diameter-expanding chamber portion formed by a joint body in relation to an internal nipple member. By arranging and arranging, and having a release member at the time of disconnection, it is possible to eliminate the troublesomeness at the time of connecting the flexible hose and to perform it extremely easily.
At the same time, there is no need for connection equipment and devices, and a pipe connection joint that can facilitate reuse of the joint body only by replacing the hose when cracking, breaking or aging on the flexible hose side is provided. The purpose is to do.

[0005]

In order to achieve the above-mentioned object, the present invention has a stepped bottom wall portion of a joint main body having a diameter-expanding chamber connected to a communication hole of a metal pipe on one end side, and a tip portion. Has a collar wall with a seal ring member in between, and engages the tip side of a nipple member having a sawtooth surface on the outer periphery of a cylindrical wall portion extending rearward, and further has a slit in the diameter expansion chamber and has an inner side. A plurality of cylindrical socket members made of an elastic material forming a claw wall for urging the claw wall between the peripheral surface of the diameter expansion chamber and the sawtooth surface on which the collar wall portion on the nipple member side and the flexible hose are attached. The present invention is directed to a small-diameter pipe connection joint that is internally arranged so as to elastically apply pressure to each other, and further, in the shaft core hole portion of the rear end of the joint body, the claw wall. A movable release member in a cylindrical shape that is pressed to push it forward to release the connection. The socket member in said radially enlarged chamber, Ichaku its base a joint body by resin, in which or is formed by interiors.

Since the present invention is configured as described above, the flexible hose side to be connected is connected by the arrangement of the plurality of socket members in the expanded diameter chamber portion installed in association with the internal nipple member. Due to the elastic engagement pressure at the sawtooth surface on the mounting cylinder wall and the collar wall at the tip, the connection on the flexible hose side can be made reliable and simple, and bothersome at the same time. No connection equipment or device is needed, and the claw wall of the socket member and the flexible hose are moved by the movement of the releasing member when the flexible hose side is in the installed and used state when cracking, breaking or aging. Since the pressure state is released, the hose side is taken out, and only the hose side can be replaced, the joint body can be reused easily.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of a pipe connection joint of the present invention with a partial cutout in a connected state, and FIG. 3 is a plan view of the socket member alone, FIG. 3 is a plan view of the release member alone of FIG. 1, FIG. 4 is a plan view of the nipple member alone of FIG. 1, and FIG. 5 is a view corresponding to FIG. 1 according to another embodiment. Then, (1) is a metal joint body, which has a communication hole (1 ") for inserting and brazing a metal pipe (P) at one end side, and is connected to the communication hole. The inside is formed as a diameter expansion chamber (1 '), and a ring-shaped collar wall (2) is formed by interposing a seal ring member (4) made of a rubber material or the like at the tip of the stepped bottom wall portion of the diameter expansion chamber. "), And the rear end of the cylindrical wall portion (2 ') extending rearwardly of the nipple member (2), which is the sawtooth surface (3), is attached to the inside of the nipple member (2).

Next, (5) is a cylindrical socket member made of an elastic material, and has a slit (5 ") on the peripheral wall on the tip side to form a claw wall (5 ') for urging inward, The plurality of the nipple members are located in the expansion chamber (1 ') and the peripheral surface of the expansion chamber and the nipple member.
It is arranged between the flange wall (2 ") on the (2) side and the sawtooth surface (3) to which the flexible hose (P ') is attached so as to elastically apply pressure to each other.

On the other hand, (6) is a tubular release member, which is engaged with the shaft core hole (1 "') at the rear end portion of the joint body (1) to connect the flexible hose (P'). When disconnecting, the claw wall (5 ') is pushed forward and moved to release the engagement state between the claw wall (5') of the cylindrical socket member (5) and the flexible hose (P '). (6 ') is a slit provided in the release member (6) The flexible hose (P') is a relatively thick resin tube or rubber hose, and the joint body ( When 1) is made of resin, a mounting screw (1 ''') for screwing a metal pipe connecting member (not shown) to the outer circumference on the one end side as shown in FIG.
′), And if desired, the respective base portions of the socket members (5) can be simultaneously cast (molded) for interior mounting along with the injection molding of the joint body.

[0010]

As described above, the pipe connection joint according to the present invention is constituted by the joint body (1), the nipple member (2), the socket member (5) and the release member (6) at the respective portions. In order to ensure that the flexible hose is formed by a plurality of socket members (5) that are internally installed, the flange wall (2 ") on the nipple member (2) side and the sawtooth surface (3) are simultaneously elastically squeezed. By making the connection on the (P ') side reliable and simple, the trouble of connection is eliminated, and at the same time there is no need for equipment and devices for these connections, and cracks in the flexible hose (P') , A release member that is locked due to damage or aging
By moving (6), the engagement state between the claw wall (5 ') of the tubular socket member (5) and the flexible hose (P') is released, and the hose side is replaced only to replace the joint body (1). It is an extremely useful pipe connection joint that can be reused easily.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a pipe joint according to an embodiment of the present invention with a partial cutout in a connected state.

FIG. 2 is a plan view of a single socket member of FIG.

3 is a plan view of the release member alone of FIG. 1. FIG.

4 is a plan view of a single nipple member of FIG. 1. FIG.

FIG. 5 is a diagram corresponding to FIG. 1 according to another embodiment.

FIG. 6 is a partially cutaway sectional view of a conventional pipe connection joint in a connected state.

[Explanation of symbols]

 1 Joint body 1'Expansion chamber 1 "Communication hole 1" 'Shaft core hole 1' '' 'Mounting screw 2 Nipple member 2'Cylinder wall 2 "Collar wall 3 Sawtooth surface 4 Seal ring member 5 Socket member 5' Claw Wall 5 "slit 6 release member

Claims (3)

[Claims] 1. A stepped bottom wall portion of a joint main body (1) having an inner diameter expanding chamber (1 ') connected to a communication hole (1 ") of a metal pipe (P), and a seal ring at a tip portion thereof. The nipple member (2), which has the sawtooth surface (3) around the outer periphery of the cylindrical wall portion (2 ') having the collar wall (2 ") interposing the member (4) and extending rearward, is engaged, Further, a plurality of cylindrical socket members (5) made of an elastic material, which have slits (5 ") in the diameter expansion chamber (1 ') and form a claw wall (5') for biasing inward,
The peripheral surface of the expansion chamber and the collar wall (2 ") on the side of the nipple member (2)
A pipe connection joint, characterized in that the pipe connection joint is arranged between the portion and the saw tooth surface to which the flexible hose (P ') is attached, and is internally mounted so as to elastically apply pressure. 2. A shaft core hole at the rear end of the joint body (1).
The tubular movable releasing member (6) for pressing the claw wall (5 ') forward to disconnect the member is attached to the (1 "') portion. Pipe connection fitting. 3. Socket member (5) in said expanding chamber (1 ')
The pipe connection joint according to claim 1 or 2, wherein the base is cast and internally provided in a joint body (1) made of resin.