JPH025609Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pipe connecting device for connecting electrical conduits.

Conventionally, the sockets of boxes, connectors, couplings, etc. and conduits have been connected by using adhesive if the conduits can be bonded, or by wrapping tape in the case of conduits that cannot be bonded, such as polyethylene conduits. Measures were taken to attach However, wrapping with tape was time-consuming and the bonding force was not sufficient, so the conduit sometimes fell through.

In view of these drawbacks, the present invention has been developed by attaching a locking body with claws to the main body in a removable manner, thereby strengthening the connection with the conduit tube that cannot be bonded, and making it possible to prevent the screwing between the main body and the locking body. The object of the present invention is to enable connection with electrical conduits that can be bonded by releasing the locking body and removing the locking body from the main body.

That is, the present invention consists of a main body having a threaded part on one end peripheral wall and a socket into which a conduit is inserted, and an annular locking body having a threaded part that is screwed into the threaded part, A conduit adhesive surface is provided on the inner wall of the socket of the main body, and claws for locking the conduit are integrally molded on the inner wall of the locking body, and the locking body can be screwed onto and removed from the main body, making it possible to bond the conduit. It is an object of the present invention to provide a pipe connecting device which is characterized in that it can handle both electrical conduits and non-bondable electrical conduits.

Examples will be explained below. Figure 1 is a longitudinal sectional front view showing the connection between the connector and the conduit;
The figure is a vertical sectional front view showing the connection between the coupling and the conduit, and FIG. 3 is a vertical sectional front view showing the connection between the box and the conduit. These figures 1 to 3
As shown in the figure, it consists of a main body 1 and an annular locking body 2, and the main body 1 has a cylindrical socket 3 with a conduit adhesive surface on its inner wall and a female thread 4 on its peripheral wall. The case shown in FIG. 1 has a connecting screw 5 for connecting the connector to the box. Next, the annular locking body 2 is formed with a male screw 6 that is screwed into the female screw 4, and a claw 7 with a pointed lead end is provided protruding from the inner peripheral surface. Claw 7
Although one may be provided on a part of the inner circumferential surface, if a plurality of these are provided intermittently over the entire circumference, the connection will be more firmly established. Further, the claw 7 is inclined in the tube insertion direction, and in the tube withdrawal direction, it is perpendicular to the tube axis or tilted toward the depth of the tube, which makes it easier to insert the tube and makes it difficult to remove it. A collar 8 is formed on the locking body 2 and serves both as a handle for screwing in and out of the main body 1 and as a screw-in stopper for the locking body 2. FIG. 4 shows a main body 1 having a male thread 9 on the peripheral wall, and an annular locking body 2 having a male thread 9.
It has a female thread 10 that is screwed into the body, and has a claw 7 on its inner circumferential surface. Although FIGS. 1 to 4 above are symmetrical to conduits with smooth surfaces, they can also be applied to corrugated conduits as shown in FIG. 5. In this case, the shape of the nail does not matter as long as it fits into the valley of the waves.

In the present invention configured as described above, the locking body 2 is fixed to the main body 1 by screwing the male screw 6 or the female screw 10 of the annular locking body 2 to the female screw 4 or male screw 9 of the main body 1. Next, the conduit 11 that cannot be bonded is pushed in, and the claws 7 are bitten into the surface of the smooth conduit 11 or inserted into the valleys of the corrugated conduit 11.
Strongly connect. In the case of a conduit that can be glued, unscrew the main body 1 and locking body 2, remove the locking body 2 from the main body 1, and apply adhesive to the conduit 11 as shown in Figure 6 A and B. and connect.

In the case of the examples shown in FIGS. 1 to 3 and 5, since the threaded portion is covered by the peripheral wall of the socket 3, damage to the locking body 2 can be reliably prevented even if an external force is applied.

In this way, the present invention is capable of attaching and detaching a main body having a socket with a conduit adhesive surface on the inner wall and a locking body having an integrally molded claw for locking the conduit on the inner wall by means of screwing. Since it is attached, it can be applied to both conduits that can be bonded and conduits that cannot be bonded.
In the case of conduits that cannot be glued, the conduits can be connected using claws provided on the locking body, and in the case of conduits that can be glued, the locking body can be removed from the main body and connected by gluing it to the adhesive surface of the conduit. .

[Brief explanation of the drawing]

FIG. 1 is a vertical sectional front view showing a connection between a connector and a conduit according to an embodiment of the present invention, and FIG. 2 is a vertical sectional front view showing a connection between a coupling ring and a conduit.
FIG. 3 is a longitudinal sectional front view showing the connection between the box and the conduit, FIG. 4 is a longitudinal sectional front view showing the connection between the connector and the conduit according to another embodiment of the present invention, and FIG. 6A and 6B are longitudinal front views showing the connection between the connector and the conduit with the locking body removed. It is. Explanation of symbols of main parts, 1... Main body, 2...
...Locking body, 3... Socket, 4, 9... Screws on main body peripheral wall, 6, 10... Screws on locking body, 7...
Claw, 11...Electric conduit.

Claims (1)

[Scope of utility model registration request] It consists of a main body that has a threaded part on the peripheral wall at one end and a socket into which a conduit is inserted, and an annular locking body that has a threaded part that screws into the threaded part, and is attached to the inner wall of the socket of the main body. has a conduit adhesive surface, the inner wall of the locking body is integrally molded with a claw for locking the conduit, and the locking body can be screwed onto and removed from the main body, making it impossible to bond with the conduit that can be bonded. A pipe connecting device characterized in that it is capable of handling both electrical conduits.