JPH019213Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a pipe connecting device for connecting electrical conduits, etc. to boxes, connectors, couplings, etc.

Conventionally, as a pipe connecting device, there is a connector shown in FIG. This has a locking protrusion A formed by cutting and raising a part of a cylindrical socket peripheral wall inward. However, in this case, the insertion force when inserting the tube is applied directly to the locking protrusion A, so the locking protrusion A is easily deformed and
There was a flaw that caused destruction.

In view of these drawbacks, the present invention has been developed by fixing a separate rigid locking body having a locking protrusion on the elastic tongue formed on a part of the peripheral wall of the socket, so that the tube insertion force is absorbed by the elastic tongue. Since it absorbs water, the locking body can be made of a rigid body, and the purpose is to prevent deformation and destruction of the locking protrusion.

That is, the present invention provides an elastic tongue piece that has a cylindrical socket, has a locking protrusion insertion hole formed in a part of its peripheral wall, and has a free end on the side of the insertion hole and a supporting end on the side of the tube insertion port. and a rigid locking body having a locking protrusion at one end, and the rigid locking body is fixed onto the elastic tongue piece with the locking protrusion facing the inner surface of the socket from the insertion hole. It is an object of the present invention to provide a pipe connecting device characterized by the following.

Examples will be explained below. FIG. 2 is a perspective view of the main part of the main body, FIG. 3 is a perspective view of the rigid locking body,
FIG. 4 is a longitudinal sectional front view showing a state in which the electrical conduit is connected to the connector. These figures 2 to 4
As shown in the figure, the main body 1 has a cylindrical socket 2, and a part of its peripheral wall has an insertion hole 4 into which the locking protrusion 3 is inserted.
A flat elastic tongue piece 8 having a free end 6 and a support end 7 is formed by forming elongated axial through holes 5, 5 which are connected to the insertion hole 4. This elastic tongue piece 8 is provided with a convex portion 9 facing outward. On the other hand, the rigid locking body 10 has a locking projection 3 formed at one end and a hole 11 in which the projection 9 fits at a position corresponding to the projection 9 . Then, insert the locking protrusion 3 into the socket 2 through the insertion hole 4.
The rigid locking body 10 is fixed to the main body 1 by fitting the protrusion 9 into the hole 11 so as to face the inner surface and crushing the upper part of the protrusion 9. If the locking protrusion 3 is inclined in the direction of insertion of the conduit 12 and has a vertical triangular cross section in the direction of withdrawal of the conduit 12, or a triangular cross section inclined toward the back of the main body 1, it will be easier to insert the tube. It becomes difficult to pull out, and the conduit 12 can be connected more firmly. Further, the means for fixing the rigid locking body 10 onto the elastic tongue piece 8 is not limited to the present embodiment, and is not limited to any means such as welding, screwing, etc., as long as it provides the same effect. In the figure, 13 is a male screw for fixing the connector to the box.

In the present invention configured in this way, when the conduit 12 is inserted into the socket 2, the rigid locking body 10 moves along with the tongue 8 in the R direction (the fourth (Figure), the conduit 12 can be inserted with a small force, and if a pulling force is applied to the conduit 12 after insertion, the locking body 10 cannot be lifted in the R direction. It is firmly fixed by biting into it.

In this way, the present invention has an elastic tongue piece formed on the main body and a rigid locking body fixed on the elastic tongue piece, so that the elastic tongue piece imparts outward elasticity to the rigid locking body, making it possible to easily insert the Enables tube insertion with force,
Since the locking projection is formed of a rigid body, there is no risk of damage such as deformation or destruction.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional front view showing a conventional connector, Fig. 2 is a perspective view of the main body of the present invention, Fig. 3 is a perspective view of the rigid locking body of the present invention, and Fig. 4 is a main body perspective view of the present invention. FIG. 2 is a longitudinal sectional front view showing a state in which a conduit is connected to the invented connector. Explanation of the symbols of the main parts, 1... Main body, 2... Socket, 3... Locking protrusion, 4... Insertion hole, 6... Free end, 7... Support end, 8... Elastic tongue piece, 9...Protrusion,
10...Rigid locking body.

Claims (1)

[Scope of utility model registration request] A main body having a cylindrical socket, a locking protrusion insertion hole formed in a part of its peripheral wall, and an elastic tongue piece having a free end on the side of the insertion hole and a supporting end on the side of the tube insertion port. and,
consisting of a rigid locking body having a locking protrusion at one end,
A pipe connecting device characterized in that a rigid locking body is fixed on an elastic tongue piece with a locking protrusion facing the inner surface of a socket from an insertion hole.