JPS5936381Y2 - Jig for connecting the joint pipe to the pipe body - Google Patents

Description

[Detailed description of the invention] The present invention relates to a connecting jig that facilitates the connection operation of a joint pipe that is screwed to the end of a pipe body, and includes a screw that is screwed to the pipe body, and a cover ring. A short tube with a bottom plate that is fitted from the end face of a socket-type joint tube with threads for screwing into the socket-type joint tube is screwed onto the inner periphery of the short tube with a cover ring threaded screw of the socket-type joint tube. A thrust bearing is provided on the inner surface of the bottom plate to connect to the end surface of the joint pipe, and a handle rod is protruded from the center of the outer surface of the bottom plate, making it suitable for use in narrow work areas. Also suitable for use in
The purpose of this is to enable accurate removal of the joint pipe by the preferential sliding action of the thrust bearing when the joint pipe is screwed into the pipe body and then rotated in the opposite direction by the handle rod. .

A preferred embodiment of the present invention will be described with reference to the accompanying drawings.

In the figure, a denotes a tubular body, and a male thread b is formed on the outer periphery of the end thereof.

C is a socket-type joint tube having a screw d on the inner periphery of one end to be screwed into the male screw b, and a screw e on the outer periphery of the other end to screw the cover ring f.

Reference numeral 1 is a connecting jig of the present invention, in which a bottom plate 3 is provided on a short pipe 2 that fits into the end of the joint pipe C provided with the thread e, and the inner circumference of the short pipe 2 is provided with the thread e. An inner circumferential screw 4 is formed to be screwed into the bottom plate 3, and a thrust bearing 5 with a rotating ring 6 facing forward is attached to the inner surface of the bottom plate 3.

In addition, a handle rod 7 made of a hexagonal bar is located at the center of the outer surface of the bottom plate 3.
Install.

The above-mentioned connecting jig 1 is made by slightly screwing the screw d into the male screw b of the pipe body a, and then screwing the inner peripheral screw 4 into the screw e of the socket-type joint pipe C from which the cover ring f has been removed. After joining the rotating ring 6 of the thrust bearing 5, the handle rod 7 is rotated in one direction by a small rotator 8, the screw d is screwed into the male screw b, and the joint tube C is firmly tightened to the tube body a. In fact, the jig 1 is rotated in the opposite direction by the rotator 8.

At that time, the end face of the joint pipe C is in strong pressure contact with the rotating ring 6 of the thrust bearing, and with the above-mentioned reverse rotation, the balls of the thrust bearing 5 and the short pipe 2 of the bottom plate are prioritized while the rotating ring 6 is stopped. and then,
Since the screw d is tightly screwed into the male screw b as described above, the inner circumferential screw 4 is unscrewed from the screw e, and the jig 1 is removed from the socket type joint pipe C.

The present invention has the structure and function as explained above.For example, in order to add a steel pipe buried underground, such as a telephone line protection pipe, a female socket-type joint pipe is attached to one side.
Attach a male joint pipe to the other end to seal it to prevent water intrusion and allow it to expand and contract freely, even in narrow places such as open trenches dug underground or manholes. This makes it easy to connect a socket-type joint pipe to a steel pipe, especially when the jig is rotated in the opposite direction to remove it from the joint pipe after the connection is completed. There is an advantage in use that the joint tube can be removed without interlocking.

[Brief explanation of the drawing]

The attached drawings show an embodiment of the present invention, and FIG. 1 is a front view;
FIG. 2 is a partially cutaway side view, and FIG. 3 is a longitudinal sectional side view of the center portion showing the state of use. 1 → Connection jig, 2 → Short pipe, 3 → Bottom plate, 4 → Inner circumference thread,
5 → Thrust bearing, 6 → Rotating wheel, 7 → Handle rod.

Claims (1)

[Scope of utility model registration request] A short pipe 2 with a bottom plate 3 fitted from the end face of a socket-type joint pipe C having screws d screwed into the pipe body a and screws e screwed into the cover ring f provided at both ends. An inner peripheral thread 4 is formed on the inner periphery to be screwed into the covering screw e of the socket-type joint pipe, and a thrust bearing 5 is provided on the inner surface of the bottom plate 3 to be joined to the end face of the joint pipe C. A jig for connecting a joint pipe to a pipe body, characterized in that a handle rod 7 is provided protruding from the center of the outer surface of the joint pipe.