JPH0541321U - Pipe joint removal device - Google Patents

Abstract

(57) [Summary] (Correction) [Structure] A supporting member 2 having a width substantially equal to the outer diameter of the pipe 6, and a bar 1 on a side surface of the supporting member at a position substantially equal to the length of the pipe joint 3. This is a device for removing a pipe joint provided with this rod rotatably attached in the axial direction of the support member. [Effect] Even if a large number of pipe joints are tightly housed, they can be easily removed from the pipe.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a pipe joint removing device for penetrating an optical cable by using gas in a pipe line installed in advance.

[0002]

[Prior Art]

 As a method of laying an optical cable in a pipe line that has been laid in advance using gas, for example, as shown in Japanese Patent Publication No. 22922/1990, a driving roller provided in a pressure chamber is used to pipe a communication wire. There is one that uses a drive mechanism that drives it into the road. If an optical cable is to be installed over a long distance using this type of equipment, it must be installed separately. FIG. 4 is a schematic explanatory diagram thereof, and there is a method of arranging a plurality of cable laying devices 11 at the connection point of the pipe line 6 laid in advance at an appropriate distance and interlocking them.

FIG. 5 is an explanatory diagram of an example of a pipe line at a connection point. In this example, two conduits 6 are housed in the conduit cable 8. Reference numeral 3 denotes a pipe joint, which connects the pipe 6 in an airtight manner. A conduit connection member 9 is provided for connecting the conduit cable 8 and the conduit joint 3 to each other to directly reinforce the connection point. In addition, a conduit connection member 10 is provided to protect the entire connection point.

At such a connection point, in order to insert the cable laying device between the conduits, the conduit connection by the conduit joint 3 must be disconnected. On the other hand, FIG. 6 is a partial cross-sectional view of the pipe joint. When the pipe line 6 is pushed into the joint 3, the lock claw 5 digs into the surface of the pipe line 6 and cannot be pulled out. However, when the release ring 4 is pushed in, the lock claw 5 is disengaged, so it is possible to pull out by pulling the pipe line 6 while pushing the lock claw 5.

FIG. 3 is an explanatory diagram of this operation by a conventional method. A method of pulling the conduit 6 with the other hand while holding the release ring 4 with the holding tool 12 with one hand has been used.

[0006]

[Problems to be solved by the device]

 In the above-mentioned conventional method, the operation of pressing the release ring 4 by the pressing tool 12 is unstable and requires a large force, and in FIG. 5, a large number of joints may be housed in the connecting member 10. It was very difficult to remove the dovetail joint 3.

[0007]

[Means for Solving the Problems]

 The present invention provides a removal tool that solves the above-mentioned problems, and is characterized by a support member 2 having a width substantially equal to the outer diameter of the conduit 6 and a length of the conduit joint 3 on the side surface of the support member. And a bar member 1 which is attached so as to penetrate each other at substantially equal positions, and the bar member 1 is rotatable in the side surface or in a plane parallel to the side surface with the through hole as a fulcrum. It is a device for removing a pipe joint.

[0008]

[Action]

 FIG. 2 is an explanatory view for operating the removal device of the present invention. When the bar 1 is stretched in a straight line and placed under the pipe joint 3 (Fig. 2 (a)), and then the bar 1 is set up 90 ° and held (Fig. 2 (b)), the bar 1 is opened. Since the above-mentioned lock claw is pushed away from the pipe line, the pipe line 6 can be easily pulled out.

[0009]

【Example】

 An embodiment of the present invention will be described with reference to FIGS. The bar 1 is made of metal having rigidity and elasticity, or hard plastic, etc., and it is usually convenient to form it by penetrating the end of the support member 2 and bending it. The support member 2 is made of metal or plastic in the shape of a prism. However, it may be cylindrical. It is preferable that the width of the supporting member and the position of the bar member attached to the supporting member are approximately equal to the width of the conduit and the length of the joint, respectively, from the viewpoint of the effect.

Since the rod member 1 of the above-described pipe line removing device is rotatable in the axial direction of the support member 2, it is linearly extended and placed under the pipe line joint 3 (FIG. 2 (a)). Then, the bar 1 is erected as shown in FIG. 2B, and when the bar 1 is grasped, the bar 1 pushes the release ring 4 toward the center of the joint 3, so that the lock claw 5 shown in FIG. The state in which the surface of the above is embedded is released, and the pipe line 6 can be easily pulled out.

The device of the present invention does not require a space for removal even when a large number of joints are arranged, and the bar is grasped to press the release ring to release the lock claw, so that the pipe line can be easily pulled out. be able to.

[0012]

[Effect of the device]

 As described above, the pipe joint removing device of the present invention has a simple structure and is highly functional even when a large number of pipe joints are stored, and therefore can be easily removed from the pipe passage. it can.

[Brief description of drawings]

FIG. 1 is a perspective view of a concrete example of a device for removing a conduit joint according to the present invention.

FIG. 2 is an explanatory view of a removing process of a pipe joint according to the present invention.

FIG. 3 is an explanatory view of a process of removing a conduit joint by a conventional device.

FIG. 4 is an explanatory diagram of a case where an optical cable is installed in a pipe line.

FIG. 5 is an explanatory diagram of an example of a pipe line at a connection point.

FIG. 6 is a partial cross-sectional view of a pipe joint.

[Explanation of symbols]

 1: Bar material 2: Support member 3: Pipe line joint 4: Opening ring 5: Lock claw 6: Optical cable laying pipe line 7: Optical cable

Claims (1)

[Scope of utility model registration request] 1. A support member having a width substantially equal to the outer diameter of the conduit, and a bar member penetratingly attached to a side surface of the support member at a position substantially equal to the length of the conduit joint.
The pipe fitting detaching device according to claim 1, wherein each of the rods is rotatable about the side surface or a plane parallel to the side surface with the through hole as a fulcrum.