JPH0434292A - Thin diameter pipe connecting connector - Google Patents

Abstract

PURPOSE:To contrive compactness of a product total unit by providing such constitution as providing a cylindrical annular wall of C-shaped section with a socket unit positioned in a point end side of the wall and protruding a plurality of elastic pawl walls in the front integrally with an engaging wall protruded outward continued to the cylindrical annular wall. CONSTITUTION:A socket unit 5, molded by press-working a spring member built in a part of a large diameter chamber 3 in the interior of a connector main unit 1, is positioned in the vicinity of the point end and provided with a cylindrical annular wall 5' of C-shaped section. Further an engaging wall 9' protruded outward continued to a cylindrical annular wall part and a lip wall 9 formed in a double wall by folding a rearward protruded end part are provided. Further, constitution is provided such that a plurality of elastic pawl walls 8, tilted opposedly positioned to the front continued to the lip wall, is integrally protruded. Constitution is provided such that a part of an outward annularly swollen wall P', provided in the vicinity of a connection end part of a pipe built in the inside of the connector main unit 1 by a point end part of the elastic pawl wall 8 under a connection condition of the pipe P, is elastically press-stop connected.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention generally relates to pipes with a diameter and thickness of 20 m/m installed as oil supply and air supply paths for automobiles or various machines and devices.
The present invention relates to an improvement in the structure of a connector for connecting metal pipes or resin tubes (hereinafter simply referred to as piping) having a relatively small diameter of about 100 yen or less.

(Prior art) Conventionally, as this type of connector, for example, the 12th
As shown in the figure, the mounting wall (21') at the rear peripheral end of the connector body (21) and the peripheral wall of the through-hole at the center of the shaft are located at the front of the direction. A stepped portion (24) provided on the annular peripheral wall (23') on the rear end side is engaged with the socket body (22) having a pair of protruding claw walls (23) inclined inwardly. The claw wall (23) section was configured to apply pressure to the bulging wall (Pa') section of the pipe (Pa) incorporated therein so as to connect it.

(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). In order to rely on the snap function at the rear end side of the socket body (22), the shoulder part formed on the stepped part (24) provided on the annular peripheral wall (23°) on the rear end side of the socket body (22) is engaged. In connection with crushing the annular protruding wall (24') formed by the socket body (24') inwardly and passing it through the inside of the hanging support wall (21') when assembling the annular projecting wall (24'), the longitudinal direction of the socket body (22) is and radially, each is forced to be longer and have a larger diameter,
The entire product including the connector body (21) is made large,
Therefore, there is a problem in that installation in a narrow space often causes problems.

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 smaller in the radial direction to make the entire product including the connector body compact, making it easier to install in narrow spaces. The object of the present invention is to propose a connector for connecting small-diameter pipes, which makes it possible to assemble the socket body itself, and to connect and disconnect pipes easily.

(Means for Solving the Problems) In order to achieve the above object, the present invention has a small diameter chamber with an enlarged diameter connected to the communication hole of the connecting cylinder wall on the distal end side inside the shaft core, and a stepped large diameter chamber at the rear thereof. A seal ring member and a bushing member are installed behind the connector main body on the small diameter chamber side of the connector main body, which has a rear peripheral end formed by the large diameter chamber as a hanging support wall, and a bushing member is installed in the large diameter chamber. Then, a separate socket body having a plurality of protruding claw walls facing inward and facing the front part is attached to the hanging support wall near the rear end, and in this state, the piping is connected. A connection configured such that an outward annular bulging wall provided near the connecting end of the pipe incorporated into the interior of the connector body at the bottom is elastically pressed and connected by the tip of the claw wall. In the connector, the socket body is made of a spring plate material, and has a cylindrical ring wall with a substantially C-shaped cross section located on the tip side thereof, and protrudes outward from the cylindrical ring wall rearwardly. an engagement wall, a lip wall whose rearwardly projecting end is bent to form a double wall as necessary, and a plurality of inclined elastic claw walls facing forward and connected to the engagement wall or the lip wall. The gist of the present invention is a connector for connecting small diameter piping, which is constructed by integrally projecting the socket body with the lip wall portion of the socket body projecting outward from the hanging wall portion of the connector body side, In addition, a contact wall may be provided on the distal end side of the C-shaped cylindrical ring wall of the socket body to extend in the radial direction and come into contact with the stepped portion of the large diameter chamber, and the cylindrical ring wall may be further connected to the connector. It is constructed so as to come into contact with the inner circumferential surface formed by the large diameter chamber on the main body side.

(Function) Since the present invention is configured as described above, the socket body, which is previously engaged in the connector body, is connected to the cylindrical ring wall having a C-shaped cross section, which is provided near the tip of the socket body. Due to the structure formed by integrally protruding a plurality of elastic claw walls facing each other in front of the mating wall, the engagement wall connected to the elastic claw wall has a movable function in the radial direction due to elasticity. , the socket body can generally be made small in diameter, so the entire product including the connector body can be made compact and can be installed in a narrow space, and at the same time the socket body itself can be easily assembled; In addition, it is possible to connect and disconnect piping easily, quickly, and easily.

(Example) Hereinafter, embodiments of the present invention will be described based on the drawings. Figures 1 (a) and (b) are partial cutaways of the connector for connecting small diameter pipes of the present invention in the connected state, respectively. 2 is a perspective view of the socket body shown in FIG. 1 (A), FIGS. 3 and 4 are a plan view and a front view of the socket body shown in FIG. 1 (B), and FIG. The figure is a perspective view of another embodiment of the socket body alone, FIGS. 6 and 7 are enlarged sectional views of main parts showing other embodiments of the present invention, and FIG. 8 is an enlarged sectional view of still another embodiment. figure,
9 is a perspective view of the socket body shown in FIG. 8; FIGS. 10 and 11 are views corresponding to FIG. 1 of still another embodiment of the present invention; (1) is the connector body; A small-diameter chamber (3°) with a diameter enlarged along with a communication hole (4) that has a connecting cylinder wall (2) such as a resin tube or rubber hose (not shown) on the tip side inside the shaft core, and a step at the rear thereof. A large-diameter chamber (3) is provided through the large-diameter chamber (3), and if necessary, an engagement hole (10) consisting of a long hole is bored opposite to the peripheral wall formed by the large-diameter chamber to form an annular rear periphery of the large-diameter chamber (3). The end portion is formed into a hanging wall (1°). A plurality of ring members (6) are inserted into a sheet made of rubber material or the like via spacers as desired on the small diameter chamber (3°) side, and a bushing member (7) is installed behind the ring members (6).

(5) is a socket body formed by pressing a spring material assembled into the large diameter chamber (3) inside the connector body (1), and is located near the tip and has a C-shaped cross section. It has a cylindrical ring wall (5°), and an engagement wall (9°) that protrudes outward following the cylindrical ring wall, and an end that protrudes backward to form a double wall. A lip wall (9) is provided, and a plurality of inclined elastic claw walls (8) are integrally protruded from the lip wall to face each other in front.

In addition, without providing the lip wall (9), FIGS. 6 and 7
As shown in the figure, an elastic claw wall (8) may be provided directly connected to the engagement wall (9゛), or it may be extended radially to the tip side of the cylindrical ring wall (5°) as shown in Figure 5. Abutting wall with double wall (5a)
or a double wall extending radially toward the rear end of the cylindrical ring wall (5°) as shown in Figures 8 and 9. When a flange wall (5b) is provided to hold the annular bulging wall (Po) of the pipe (P) between the flange wall (5b) and the tip of the elastic claw wall (8), the socket body (5) The assembly condition and the connection condition of the piping (P) are stable.

Then, hold the engagement wall (9°) part of the connector body (
1) When inserted into the engagement hole (10) on the hanging support wall (1°
), or as shown in Figure 10, the engagement wall (9).
°) is directly attached to the hanging support wall (1゛), and when the pipe (P) is connected, it is assembled into the inside of the connector body (1) by the tip of the elastic claw wall (8). An outward annular bulging wall (P
The connection is constructed by applying pressure to the part (2) in an elastic manner.

The lip wall (9) provided as necessary is preferably formed by protruding outward from the hanging wall (1゛) on the side of the connector body (1) (Fig. 1 (b), Fig. 11). By this, the socket body (5) can be detached from the connector body (1) by finger pressure operation, and the opening formed by the C-shaped cylindrical ring wall (5゛) of the socket body (5) The part is made larger than the outside diameter of the pipe (P) so that it can be attached to and removed from the pipe (P) from the side, and the cylindrical ring wall (
5゛) portion is brought into contact with the inner peripheral surface of the large diameter chamber (3) on the side of the connector body (1) so that the stable clamping function of the elastic claw wall (8) portion can be more effectively exerted. You can also do that.

(Effects of the Invention) As explained above, the connector for connecting small diameter pipes according to the present invention has a cylindrical ring wall (5°) having a C-shaped cross section with the socket body (5) located on the tip side thereof, and and integrally with an engaging wall (9°) protruding outward following the cylindrical ring wall,
In addition, if necessary, a plurality of elastic claw walls (8) are provided in the front to be integrated with the lip wall (9) that projects further rearward, so that an engagement wall (9) connected to the elastic claw walls is provided. °) or lip wall (9), the socket body (5) can be made small in diameter, and the entire product including the connector body (1) can be made compact. It can be conveniently handled without any trouble when installed in a narrow space, and at the same time, the socket body (5) itself can be easily assembled, and the connecting and disconnecting operations of the piping (P) can be performed easily, quickly and easily. This is an extremely useful connector for connecting small diameter pipes.

[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). FIGS. 3 and 4 are respectively a plan view and a front view of the socket body shown in FIG. 7 and 7 are respectively enlarged sectional views of essential parts of other embodiments of the present invention, FIG. 8 is an enlarged sectional view of yet another embodiment, and FIG. 9 is a perspective view of the socket body alone in FIG. 8.
FIG. 10 and FIG. 11 are the first and second embodiments showing other embodiments, respectively.
FIG. 12 is a partially cutaway vertical cross-sectional view showing the connected state of a conventional connection connector. (1)... Connector body, (1°)... Hanging wall,
(3)... Large diameter chamber, (5)...Socket body, (5°)...Cylindrical ring wall, (5a)...Abutting wall, (8)...Elastic claw wall,
(9)...Lip wall, (9°)...Engagement wall, (P)
···Piping.

Claims (1)

[Scope of Claims] 1) A small diameter chamber with an enlarged diameter connected to a communication hole in a connecting cylinder wall on the distal end side is provided inside the shaft core, and a stepped large diameter chamber is provided at the rear of the small diameter chamber, and the large diameter chamber A seal ring member and a bushing member are installed behind the small-diameter chamber side of the connector main body, the rear circumferential end of which is a hanging wall, and a seal ring member and a bushing member are installed behind the seal ring member and a bushing member at the front side of the connector body in the large-diameter chamber and on the hanging wall. A separate socket body with a plurality of protruding inwardly inclined claw walls facing the connector is engaged near its rear end, and in this state, when the piping is connected, the tip of the claw walls connects the connector body. The socket body (5) is configured to be connected by resiliently applying pressure to an outward annular bulging wall portion provided near the connection end of the pipe incorporated inside the socket body (5). is used as a spring plate material, and has a cylindrical ring wall (5') having a substantially C-shaped cross section located near the tip thereof, and an engagement wall that extends rearward from the cylindrical ring wall and projects outward. (9'), and a plurality of inclined elastic claw walls (8) which are positioned facing forward and connected to the engagement wall are integrally protruded. connector. 2) In claim 1, the socket body (5) is further provided with a lip wall (9) having a rearwardly projecting end bent to form a double wall, and an elastic claw wall (8) is provided on the lip wall. A connector for connecting small-diameter piping, characterized by being configured so that they are continuous. 3) In claim 2, the lip wall (9) of the socket body (5) is connected to a hanging wall (1) on the side of the connector body (1).
1') A connector for connecting small diameter pipes, characterized in that it protrudes outward from the part 1'). 4) In claim 1, C of the socket body (5)
A small diameter chamber characterized by being constructed by providing an abutment wall (5a) extending in the radial direction on the tip side of a letter-shaped cylindrical ring wall (5') and abutting against the stepped portion of the large diameter chamber (3). Connector for piping connection. 5) In claim 1, C of the socket body (5)
Connect the cylindrical ring wall (5') portion, which is shaped like a letter, to the connector body (
A connector for connecting small-diameter pipes, characterized in that it is configured so as to be in contact with the inner circumferential surface of the large-diameter chamber (3) on the side (1).