JPH048991A - Connector for connecting small bore piping - Google Patents

Abstract

PURPOSE:To make the whole body of a product in a compact size to allow to be arranged in a narrow place, and at the same time, to carry out the assembling of a socket body itself simply, by making the socket body into plural tongue-formed bodies projecting elastic claw walls to the rear side and linking to a fitting wall, and forming them integrally. CONSTITUTION:A socket body 5 is formed by projecting integrally plural tongue- formed elastic claw walls 5' furnishing projecting fitting walls 5'' linked to the tube wall at the tip side of the socket body and inclined outward to the rear side, and its tip side is installed and fixed to the tip of a piping P with a pressure-connecting means such as a calking means. And the fitting wall 5'' at the rocket body 5 side is connected elastically to a hanging wall 1' of a connector main body 1 and the connection is composed under the condition a seal ring member 6 is placed between the peripheral surface formed by an expanded bore chamber 3 at the connector main body 1 side and the socket body 5. As a result, it can be handled conveniently with no trouble when it is arranged in a narrow place, and at the same time, the socket body 5 can be assembled simply. And the connection and the removal work of the piping P can be carried out rapidly and simply without unnatural operation.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention is primarily directed to pipes with a diameter of 20n+/20n+ installed as supply paths for oil and air supply to automobiles, various machines, devices, etc.
The present invention relates to a connector for connecting a metal pipe or resin tube (hereinafter simply referred to as piping) having a relatively small diameter of about 100 m or less.

(Prior Art) Conventionally, as shown in FIG. 9, for example, as shown in FIG. The socket body (22) has a pair of inwardly inclined claw walls (23) projecting from the front part of the through hole, and the socket body (22) is attached to the annular peripheral wall ( The stepped part (24) provided at the 23°) part is engaged, and the bulging wall (Po') part of the pipe (Po) incorporated inside is held in pressure by the claw wall (23) part for connection. It was composed of

(Problem to be Solved by the Invention) However, in such a conventional technique, the claw wall (23) is attached to the socket body (22) and is attached by pressure from the rear when connecting the pipe (Po). A shoulder formed on the stepped portion (24) provided on the annular circumferential wall (23') on the rear end side of the long socket body (22), which relies on the snap function at the shoulder. The annular protruding wall (24°) formed by the part is crushed inward when it is assembled to pass through the inside of the hanging support wall (21'), and forms a pressure holding part with the claw wall (23) part. An annular bulging wall (Po
In connection with the need to form the piping (Po), the shape of the socket body (22) has to be long and large in both the longitudinal and radial directions, Naturally, the entire product including the connector body (21) is large in size, which often causes problems when installed in a narrow space.

The present invention has been made in view of the above-mentioned problems of the prior art, and the shape of the socket body can be made short in the longitudinal direction and small in diameter in the radial direction, thereby making the entire product including the connector body compact. The purpose of the present invention is to propose a connector for connecting small-diameter pipes that can be installed in narrow spaces, and at the same time allows for easy connection and removal of pipes due to the simple assembly of the socket body. Something.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention includes a pipe, and fixes the distal end of the pipe by caulking means or crimping means using a collar member, etc., and then removes the pipe from the rear. A socket body integrally protrudes from a plurality of tongue-like elastic claw walls having a protrusion-like engagement wall portion inclined in the direction, and a stepped enlarged diameter chamber extending to the communication hole of the connecting cylinder wall is provided inside the socket body. and a connector body whose rear end serves as a hanging support wall, and the distal end side of the pipe is incorporated into the enlarged diameter chamber, and is interposed between the mutual circumferential surfaces formed by at least the enlarged diameter chamber on the connector main body side and the socket body. and a seal ring member, the small-diameter piping is configured such that when the piping is in a connected state, the engaging wall portion on the socket body side is resiliently engaged with the hanging wall portion of the connector body for connection. The gist of the connector is a connection connector, and furthermore, an outward projecting wall is provided along the peripheral wall of the enlarged diameter chamber of the connector body, and the seal ring member is inserted into the inner groove formed by the projecting wall. Alternatively, the socket body may be configured such that an outwardly bulging wall is provided on the cylindrical wall near the tip of the socket body, and a concave groove on the inside formed by the bulging wall is formed between the socket body and the circumferential surface of the pipe. A separate seal ring may be inserted over the length of the connector body, or a sealing member may be interposed at the tip of the pipe to swage it. The socket body is configured by providing a plurality of elongated holes near the wall portion into which the engaging wall portion of the socket body is inserted, and the socket body is configured by providing a groove portion in the cylindrical wall portion near the tip of the socket body to fit the socket body into the recess. The seal ring member is interposed in the groove.

(Function) Since the present invention is configured as described above, the soget body is attached and fixed in advance to the tip end of the piping with its tip side, and the elastic claw wall is protruded rearward to form a plurality of elastic hooks connected to the engagement wall. Due to the integrally formed tongue-shaped structure, the socket body can be fixed to a piping without the annular bulging wall, and the elastic claw wall allows the socket body to be moved in the radial direction, making the socket body generally small in diameter. In addition, it can be shortened in the longitudinal direction, making the entire product including the connector body compact, making it possible to install it in a narrow space, and at the same time making it easy to assemble the socket body itself. In addition, it is possible to connect and disconnect piping easily, quickly, and easily.

(Embodiment) Below, embodiments of the present invention will be explained based on the drawings. Figures 1 (a) and 1 (b) show the connection state of a small-diameter piping connector, respectively, showing embodiments of the present invention. Partially cutaway vertical cross-sectional view, Figure 2 is a plan view of the socket unit shown in Figure 1 (a),
FIG. 3 is a front view of FIG. 2, and FIGS. 4, 5, 6, 7, and 8 are views corresponding to FIGS. 1 (a) and (b) showing other embodiments, respectively. (1) is a connector main body, and a communication hole (2) having a connecting cylindrical wall (2) such as a resin tube or a rubber hose (not shown) on the distal end inside the shaft core.
4), a stepped enlarged diameter chamber [3] is provided through the wall, and the rear end thereof is formed as a hanging support wall (1°). Then, the seal ring member (6) is provided as desired in the enlarged diameter chamber (3).
) projecting outward along a part of the peripheral wall (1')
(Fig. 1, Fig. 4, and Fig. 5), and if necessary, a plurality of holes near the hanging wall (1°) at the rear end of the peripheral wall. It is provided with a long hole (9) (FIGS. 6, 7, and 8). (5)
is a socket body, which has a plurality of tongue-like elastic claw walls (5") having engagement walls (5") in the form of protrusions that slope outward toward the rear following the cylindrical wall on the distal end side of the socket body. It is molded to protrude as one piece.

Then, if desired, an outwardly bulging wall (5°゛°) (Figs. 1, 4, and 5) is provided on the cylindrical wall near the tip of the cylindrical wall. Separately insert a seal ring (6") into the inner groove (Fig. 1), or insert a groove (8) into the cylindrical wall near the tip (Fig. 6, 7). The sealing member (6') (Fig. 4, 6 and 7〉 or without intervening (
1, 8) crimping means or collar member (7) (
The attachment is fixed by the crimping means shown in FIG. 5).

Then, the seal ring member (6) is tightly placed between the mutual peripheral surfaces formed by the enlarged diameter chamber (3) on the side of the connector body (1) and the socket body (5) while the pipe (P) is connected. and the seal ring (6') as necessary.
The engagement wall (5") on the socket body (5) side with
The connector body (1) is connected to the hanging wall (1') of the connector main body (1) in a spring-like manner. (10) is a back up plate, and (11) is a bushing member.

As shown in FIG. 8, the seal ring member (6) is inserted into the socket body (5) through the smooth circumferential surface of the enlarged diameter chamber (3) and the circumferential wall located at the tip of the pipe (P). Of course, it is also possible to intervene indirectly.

(Effects of the Invention) As explained above, the connector for connecting small diameter pipes according to the present invention is particularly advantageous in that the socket body (5) is attached and fixed in advance to the distal end of the pipe (P) with its distal end side, and the elastic claw wall (
5") is formed by forming a plurality of tongues that protrude rearward and are connected to the engagement wall (5"), the above-mentioned installation in a pipe (P) without an annular bulging wall is fixed. Due to the radially movable function of the elastic claw wall (5°), the socket body (5) can be made small in diameter and short in the longitudinal direction, and therefore includes the connector body (1). Since the entire product is compact, it can be conveniently handled without any trouble when installed in a narrow space, and at the same time, the socket body (5) can be easily assembled, and the connection and removal operations of the piping (P) are not difficult. This connector is extremely useful for connecting small-diameter pipes because it can be connected quickly and easily.

[Brief explanation of the drawing]

Figures 1 (A) and (B) are partially cutaway vertical cross-sectional views of the connector for connecting small diameter pipes in the connected state, respectively, showing embodiments of the present invention, and Figure 2 is the socket of Figure 1 (A). A plan view of the unit alone, Figure 3 is a front view of Figure 2, Figures 4, 5, 6,
FIG. 7 and FIG. 8 are FIG. 1 (
FIG. 9 is a partially cutaway vertical cross-sectional view of a conventional connector in a connected state. (1)... Connector body, (1°)... Hanging wall,
(1”)...Protruding wall, (2)...Connecting cylinder wall, (3)
... Expansion chamber, (4) ... Communication hole, (5) ... Socket body, (5゛) ... Elastic claw wall, (5'') ... Engagement wall, (5 °")...Bulging wall, (6)...Seal ring member, [6°)...Seal ring, (6")...
・Seal member, (7)... Collar member, (8)...
Concave groove, (9)...Long hole, (P)...Piping.

Claims (1)

[Scope of Claims] 1) A piping (P) and a protrusion that slopes rearward and outward by fixing the distal end thereof to the distal end of the piping by caulking means or crimping means using a collar member (7), etc. A socket body (5) integrally protruding from a plurality of tongue-shaped elastic claw walls (5') having a shaped engagement wall (5''), and a connecting cylindrical wall (2) inside.
A connector main body (1) having a stepped enlarged diameter chamber (3) connected to a communication hole (4) passing through the connector body (1) whose rear end serves as a hanging support wall (1'), and the tip side of the pipe (P). is incorporated into the diameter expansion chamber (3), and at least the diameter expansion chamber (
3) and a seal ring member (6) interposed between the mutual peripheral surfaces formed by the socket body (5), and the socket body (5) is engaged with the socket body (5) when the pipe (P) is connected. Wall (5″
1. A connector for connecting small-diameter pipes, characterized in that the portion ( ) is resiliently engaged with and connected to the hanging support wall (1') portion of the connector body (1). 2) In claim 1, the connector body (1)
The enlarged diameter chamber (3) is configured by providing an outward protruding wall (1'') along its peripheral wall and interposing the seal ring member (6) in the inner groove formed by the protruding wall. A connector for connecting small diameter pipes, characterized in that: 3) the socket body (5) according to claim 1;
An outwardly bulging wall (5''') is provided on the cylindrical wall near the tip, and a seal ring is separately installed between the inner groove formed by the bulging wall and the circumferential surface of the pipe (P). (6'). 4) A connector for connecting a small diameter pipe according to claim 1, wherein a sealing member (6'') is interposed at the tip of the pipe (P). A connector for connecting small-diameter piping that is characterized by being swaged. 5) In claim 1, the connector body (1)
The enlarged diameter chamber (3) is connected to the hanging wall (1) at the rear end formed by the surrounding wall.
′) of the socket body (5).
) A connector for connecting small diameter pipes, characterized in that it is configured with a plurality of elongated holes (9) into which parts near the part are inserted. 6) In claim 1, the socket body (5) comprises:
A connector for connecting small diameter pipes, characterized in that a concave groove (8) is provided in the cylindrical wall near the tip, and the seal ring member (6) is interposed in the concave groove.