JPH0247165B2 - DENSENBOGOKANORENKETSUKOTEISASERUKANTSUGITE - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a pipe joint for connecting wire protection tubes placed over high-voltage wires and for fixing the wire protection tubes without shifting their positions. be.

[Prior Art] Conventionally, many means for connecting electric wire protection tubes formed to a predetermined length are known. For example, in the products described in Utility Model Publication No. 41-23971 and Utility Model Publication No. 41-24216, the edge flange of the wire protection tube is fitted and locked into a recess provided inside the pipe joint. In the device described in Japanese Utility Model Publication No. 40-25639, a protrusion is provided on the outer periphery of the end of the electric wire protection tube, and this protrusion is engaged with a locking hole provided in a pipe joint. Furthermore, the method described in Japanese Utility Model Publication No. 40-31404 has a projection on the outer periphery of the end of one wire protection tube, and this projection is directly engaged with an insertion hole provided in the other wire protection tube. I am trying to connect. In addition, Jitsukō 42-11894, Jitsukō 42-
In the products described in No. 20515 and Utility Model Publication No. 42-20860, the surface of the pipe joint is tightened with a band.

All of these conventionally known methods can connect electric wire protection tubes, but since these electric wire protection tubes and electric wires are not fixed, the wires cannot be protected when they are blown by the wind or hit an obstacle. There was a problem that the pipes could move and could not fully fulfill their role of protecting the electric wires.

[Object of the Invention] The present invention provides a pipe joint that is fixed to the wire in addition to connecting the wire protection tube, so that it does not move during use, and even if the wire has a large degree of slack, it can be fixed at any point on the slope. It is designed to be easy to use and can be used with wires and wire protection tubes of different diameters.

[Structure of the Invention] A joint body having a required length and having a through-hole inside into which a wire protection tube is inserted is vertically divided into a front member and a rear member. The front and rear members are hinged at their upper ends to connect them so that they can be opened and closed, and projections are provided at the left and right ends of the through hole for locking the edge flanges of the wire protection tube, and a stand is provided at the lower front of the rear member. A vertical screw hole communicating with the through hole is provided in the platform part to screw the wire tightening bolt, and a locking claw is provided at the tip of the platform part, and a locking claw is provided at the tip of the platform part. It is constructed by drilling an engaging hole for anchoring the locking pawl.

[Function] Straddle the joint body with the front member open forward between the ends of the wire protection tube attached to the wires, and protect each wire with the protrusions provided at the left and right ends of the through hole. The end flange of the tube is locked, the front member is allowed to hang down, and the locking pawl is locked in the engagement hole. Then, when the electric wire tightening bolt is screwed, the electric wire is pushed up by the upper end of the electric wire tightening bolt, the upper surface of the electric wire is pressed against the through hole and fixed, and at the same time, the platform part is pushed downward. The locking pawl moored to the engagement hole is pushed down and the mooring to the engagement hole is strengthened to keep the front member from separating from the rear member, fixing it to the wire and protecting the wire. The pipes are connected at the same time, and movement of the connected electric wire protection pipes is prevented.

[Example] In the figure, reference numeral 1 denotes a joint body having a width of a required length and a through-hole 3 in which the wire protection tubes 2 and 2' are inserted, and the joint body 1 is vertically divided in the longitudinal direction. The front member 4 and the rear member 5 are divided into a front member 4 and a rear member 5, and a plurality of cylindrical portions 6 are provided protruding from the upper end of each side member at different positions, and a pin 7 is inserted into these cylindrical portions 6. The front member 4 and the rear member 5 are connected to each other so as to be openable and closable. Furthermore, protrusions 9 are provided at both left and right ends of the through hole 3 to engage the edge flanges 8 of the wire protection tubes 2, 2'.

A platform portion 10 is provided protruding from the lower front surface of the rear member 5, and a vertical screw hole 11 communicating with the through hole 3 is provided in the center of the platform portion 10, and a wire tightening bolt 12 is screwed into the platform portion 10. ing. Furthermore, the platform portion 10
Locking pawls 13, 13 are provided protrudingly from the tips of the lower surfaces.
On the other hand, a cover piece 14 facing the platform part 10 is provided in the lower part of the front member 4, and an engagement hole 1 in which the locking claws 13, 13 are anchored to the lower part of the cover piece 14.
5.15 are drilled.

In addition, in the embodiment, reinforcing ribs 16 extending to the inner surface of the through hole 3 are provided along both left and right ends of the cover piece 14 on the front member, and along both left and right ends of the platform portion 10 on the rear member 5. ing. These ribs 16 are formed to be slightly higher than the protrusions 9 in the through hole 3, and can also function as stoppers that abut the end surfaces of the edge flanges 8 of the wire protection tubes 2, 2' to be locked by the protrusions 9. can.

Next, to explain the use of the pipe joint of the present invention, the front member 4 is closed as shown by the solid line in FIG.
straddle the electric wire A in the open state as shown by the chain line, return the front member 4 to the solid line position shown in FIG. 3, engage the locking claw 13 with the engagement hole 15 and temporarily fix Next, the wire protection tubes 2, 2' covered with the wires A are inserted into the left and right ends of the through hole 3, and the edge flanges 8 are locked with the protrusions 9 as shown in FIG. Then, the electric wire tightening bolt 12 is tightened to press the electric wire A to the upper part of the through hole 3 and fix it so that it will not move. As the electric wire A is fixed, the electric wire protection tubes 2 and 2' attached to the electric wire A are also pressed to the upper part of the through hole 3, so that the engagement of the edge flange 8 with the protrusion 9 is strengthened. It is firmly connected without coming off.

In this way, since the wire protection tubes 2, 2' are connected and fixed to the wire A at the same time, it is difficult to prevent the wire protection tubes 2, 2' from being blown by the wind or hitting an obstacle. It can also be fixed without moving.

Moreover, what is shown in FIG. 6 is a band 17 that is fitted onto the top surface of the joint body 1, and is formed into an elastic circular arc shape. By fitting this band 17 to the joint body 1 as shown in Fig. 7, the elasticity of the band 17 automatically closes the front member 4, thereby improving the work efficiency of fitting the pipe joint. At the same time, it is possible to prevent the front member 4 or the rear member 5 from being accidentally pried open due to impact or the like.

Furthermore, as shown in the figure, when the wire tightening bolt 12 is formed of a butterfly bolt and has an insertion hole 18 for a live wire operating rod in its head, the insertion hole 18 is equipped with a hole for inserting the live wire operating rod. By engaging the attached hook and twisting the live wire operating rod, you can tighten the wire tightening bolt 1 even from the ground.
2, which has advantages in terms of workability and safety.

In this way, the pipe joint of the present invention has the wire protection pipe 2,
2' can be connected and fixed to the electric wire A at the same time, so even if the electric wire A has a large degree of slack, it can be used at any point on the slope, and moreover, it can be used without being blown by the wind. Even if you do, it won't move.

Further, any wire having a smaller diameter than the inner diameter of the through hole 3 can be used for various wires or wire protection tubes having different diameters.

Moreover, the pipe joint can be easily attached to the middle part of the electric wire protection pipe.

And, it can be easily removed by loosening the wire tightening bolt and removing it from the wire.

[Effects of the Invention] As described above, the pipe joint for connecting and fixing the electric wire protection tube of the present invention can simultaneously fix the electric wire protection tube and connect the electric wire protection tube, so that it does not get blown by the wind during use. The wires can be reliably protected without having to move the wire protection tube if the wires are damaged or hit an obstacle, which prevents electrical accidents and also improves work efficiency such as installation and removal. It can facilitate dangerous work at heights.

[Brief explanation of drawings]

The figures relate to an embodiment of the present invention, and Fig. 1 is a developed plan view, Fig. 2 is a front view, Fig. 3 is a side view, Fig. 4 is a sectional view showing the state of use, and Fig. 5 is a side view of the same. 6 is a perspective view of the band fitted to the joint body, and FIG. 7 is a plan view showing the band in use.
FIG. 8 is a side view of the same as above. 1... Joint body, 2, 2'... Wire protection tube, 3
...Through hole, 4...Front side member, 5...Rear side member,
8... End flange portion, 9... Protrusion, 10... Table-shaped portion,
11... Vertical screw hole, 12... Wire tightening bolt,
13, 13... Locking claw, 15, 15... Engagement hole,
17... Band, 18... Insertion hole, A... Electric wire.

Claims (1)

[Scope of Claims] 1. A joint body having a required length and having a through hole into which a wire protection tube is inserted is vertically split in the longitudinal direction to form a front member and a rear member. The upper ends of the front and rear members are hinged to connect them so that they can be opened and closed, and the left and right ends of the through hole are provided with protrusions for locking the edge flanges of the wire protection tube. A pedestal part is provided protrudingly on the pedestal part, a vertical screw hole communicating with the through hole is provided in the pedestal part, and a wire tightening bolt is screwed into the part. A pipe joint for connecting and fixing an electric wire protection tube configured by drilling an engagement hole in a member for anchoring the locking claw. 2. A pipe joint for connecting and fixing an electric wire protection tube according to claim 1, characterized in that an elastic arc-shaped band is fitted to the top surface of the front and rear side members. 3. Connecting and fixing the wire protection tube according to claim 1, characterized in that the wire tightening bolt is formed of a butterfly bolt, and a hole for inserting a live wire operating rod is provided in the head of the butterfly bolt. pipe fittings.