JPH0451370Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) This invention relates to a connection section for connecting a cable terminal to a terminal of a conductor in an insulator and supporting the cable terminal in the insulator.

(Prior art) In conventional insulators, a male terminal provided at the end of a branching cable is fitted into a female terminal provided at one end of the insulator, thereby electrically connecting the conductor inside the insulator and the branching cable. is connected to. This male terminal has a flange on its outer periphery, and this flange is surrounded by two halves of flange fittings, one end of which is locked to the female terminal part, and these flange fittings are tightened with bolts to connect the male terminal of the branch cable to the insulator. It was fixed.

(Problem that the invention aims to solve) However, with this connection method, the installation of the two-split flange metal fittings is complicated and thin work, so it has to be done manually, and it is done with a hot stay for live wire work etc. I can't do that.

For this reason, we have eliminated the traditional manual construction and can easily connect with hotstacks, etc.
A connection part with a structure that can be fixed is required.

(Means for solving the problem) Therefore, this idea was developed to attach and detach the terminal body of the cable end, which has a built-in terminal for connecting the conductor terminal, to the insulator terminal part that houses the conductor terminal inside the insulator. Fit and tighten the outer periphery of the above insulator terminal part,
The ends of the bifurcated legs are rotatably attached to opposite sides, and a hook is provided at the outer end of the rod that passes through the crotch of the bifurcated legs, and a locking portion is provided at the inner end, so that the terminal portion can be bent. A fitting groove corresponding to the locking portion of the rod is provided at the end of the rod.

Specifically, the locking part at the inner end of the rod and the bent end of the terminal body are connected to the fitting groove, and the inner end flange is fixed to the outer periphery of the inner end of the rod, and the crotch part of the bifurcated leg body and the inner end are fixed. A spring spring that biases the rod inward is wound around the outer circumference of the rod between the rod and the flange, so that the inner end of the rod can be freely fitted onto the axis of the insulator end of the bent end face and the terminal body. In some cases, a threaded part is provided on the outer periphery of the inner end of the rod, and a threaded groove is provided on the end surface of the bent part similar to the above, into which the threaded part of the rod can be screwed. be.

(Function) Since this device has the above-mentioned structure, the terminal body of the cable end is supported and fixed to the terminal part of the insulator with the cable end itself and the terminal of the conductor in the insulator being electrically connected. has been done. This terminal body has both leg bodies rotatably attached to both sides of the terminal part of the insulator, and its bent part is suppressed from above by the crotch part of the bifurcated leg body. That is, since it is held in the same direction as the current direction, it has a holding force that can withstand shocks when an accidental current flows. When replacing or inspecting the terminal body, pull or twist the hook at the outer end of the rod using the hot stay to remove the locking part at the inner end of the rod from the fitting groove in the bent part of the terminal body. Rotate the bifurcated leg body around the part such as a bolt attached to the insulator, remove it from the bent part of the terminal body, remove the terminal body from the insulator terminal part, and replace, inspect, or repair the terminal body. I can do it.

(Example) An example of this invention will be described below with reference to the drawings.
Bolts 3 are attached to the tips 2a and 2a of the bifurcated legs 2 on both sides of the bent cylindrical terminal portion 1a at the lower end of the insulator 1.
The bifurcated leg body 2 is attached via a spring washer 4 so that it can rotate and be stopped freely, and the crotch portion 5 of the bifurcated leg body 2 has a concave curve.
A rod 7 with an eye nut 6 at its outer end is inserted into and out of the concavely curved crotch portion 5 of the leg body 2, and a spring is attached to the outer periphery between the inner end flange portion 8 of the rod 7 and the crotch portion 5 of the bifurcated leg body 2. A spring 9 is provided, and the further inner end of the inner end flange portion 8 serves as a locking portion 10.

The conductor terminal 11 inside the insulator 1 is provided on the inner periphery of a cylindrical cover 12 whose outer periphery protrudes from the terminal portion 1a and has a tapered shape. The L-shaped terminal body 14 of the cable 13 is configured such that the bent tip of a cylindrical bending cover 15 bent in an L-shape fits snugly into the outer periphery of the cylindrical cover 12. A terminal 16 protruding from the bent portion is connected to the terminal 11 at the center of the hollow portion. Further, a fitting groove 17 is provided on the side surface of the bending portion of the bending cover 15, into which the locking portion 10 of the rod 7 can be fitted.

In this embodiment, the L-shaped terminal body 14 of the cable 13 is fitted into the cylindrical cover 12 of the insulator 1,
Rotate the bifurcated leg body 2 around the bolt 3 and bring it to the outside of the bent part of the L-shaped terminal body 14, and then pull the eye nut 6 of the rod 7 against the force of the spring spring 9 to tighten the bifurcated leg body. The body 2 is further rotated to position the crotch part 5 of the bifurcated leg body 2 outside the fitting groove 17 of the L-shaped terminal body 14, and when the hand is removed from the eye nut 6, the rod 7 is moved by the spring spring 9. Due to the force, the locking part 10 at the tip enters the fitting groove 17 and presses the L-shaped terminal body 14.

As a result, the bifurcated leg body 2 is attached to the side surface of the bent portion of the L-shaped terminal body 14, and presses the L-shaped terminal body 14.
Fixed. Therefore, the L-shaped terminal body 14 will not come off from the terminal portion 1a of the insulator 1 even when subjected to a considerably large impact.

Moreover, in this case, the bifurcated leg body 2 has its tip 2a,
2a is pivotally supported by the bolt 3 by the spring washer 4, so that it can stop at any position and pull the eye nut 6, so that the fitting groove 1 of the L-shaped terminal body 14
Rotate the bifurcated leg body 2 to position 7 and stop pulling the eye nut 6 to release the spring spring 9.
The locking portion 10 at the tip of the rod 7 enters the fitting groove 17 with the force of 1, and the connection of the L-shaped terminal body 14 to the insulator 1 is completed extremely easily and with one touch.

In addition, instead of providing the spring spring 9 between the inner end flange 8 and the crotch part 5 of the rod 7, a screw thread 18 is provided on the outer periphery of one side of the rod 7 as shown in FIG. A nut 19 is fixed to the outer surface of the crotch part 5 of the terminal body 2 in alignment with the hole through which the rod 7 passes, and the rod 7 is screwed onto this nut 19, and the L-shaped terminal body 1
An inner circumferential screw 20 may be provided on the inner circumference of the fitting groove 17 of No. 4. In this case, when fixing the L-shaped terminal body 14 to the insulator 1, the rod 7 is rotated, and the locking portion at the tip of the rod 7 is inserted into the fitting groove 17 and screwed. As a result, the L-shaped terminal body 14 is firmly fixed to the terminal portion 1a of the insulator 1.

Although the terminal body 14 is described as being L-shaped in the embodiment, it can also be implemented in other shapes such as T-shape and Y-shape.

Further, in the above embodiment, the eye nut 6 is provided at the outer end of the rod 7, but the invention is not limited to this, and an appropriate hook may be provided.

(Effects of the invention) As described above, this invention has a bent terminal body at the end of the cable that connects to the terminal part of the insulator, and this terminal body is placed over the terminal part of the insulator to allow the bifurcated leg body to rotate. Holding the hook, pull the inner end of the rod that has passed through the crotch of the bifurcated leg body against the force of the spring spring, and use the force of the spring spring to insert the rod into the fitting groove of the bent part of the terminal body. or
Alternatively, by screwing the threaded portion at the inner end of the rod into the threaded groove of the bent portion of the terminal body, the terminal body is fixed to the terminal portion of the insulator and will not come off unnecessarily. Therefore, the connection and fixing operations are simple operations such as rotation of the bifurcated legs and pulling and rotation of the rod, and are therefore easy to operate by means of hotstacks and the like.

Moreover, the terminal body is fixed by the bifurcated leg body by placing the crotch part of the bifurcated leg body over the side surface of the bent part of the terminal body.
Since it is fixed in the direction of attachment and detachment of the terminal body, that is, in the current direction, it is firmly fixed. Therefore, there is no risk that the terminal body will come off from the terminal part of the insulator even if there is a shock caused by lightning or other abnormal current.

[Brief explanation of the drawing]

Figure 1 is a front view of an insulator that uses this invention for the cable end terminal attachment part, Figure 2 is a plan view of the main part of this invention, and Figure 3 is a diagram showing how the bifurcated legs of this invention are rotated relative to the insulator. Fig. 4A is a partially cross-sectional side view of the L-shaped terminal body attached to the terminal part of the insulator of this invention, and Fig. 4B is a partially cross-sectional side view of the terminal part of the same insulator and the L-shaped terminal body separated. The side view and FIG. 5 are plan views of essential parts showing another embodiment of this invention. In the figure, 1 is a peeler, 2 is a bifurcated leg body, 5 is a crotch part, 6 is an eye nut, 7 is a rod, 9 is a spring spring, 10 is a locking part, 12 is the same cylindrical cover, 1
4 is an L-shaped terminal body, 15 is a bending cover, 17 is a fitting groove, 18 is a screw thread, 19 is a nut, and 20 is an inner peripheral screw.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A bent terminal body of a cable end, which has a built-in terminal for connecting to the conductor terminal, is removably mated to an insulator terminal part that houses a conductor terminal inside the insulator. At the same time, each tip of a bifurcated rigid leg is rotatably attached to the outer periphery of the insulator terminal on opposing sides, and a hook is provided at the outer end of the rod that passes through the crotch of the bifurcated leg, and a hook is provided at the inner end. An inner end flange is fixed to the outer periphery, and a spring spring is wound around the outer periphery of the rod between the crotch of the bifurcated leg body and the inner end flange to bias the rod toward the inner end;
A terminal body for a cable end, characterized in that a fitting groove into which the inner end of the rod can be freely fitted is provided on the axis of the insulator terminal part on the end face of the bent part of the terminal body and the terminal body. Support structure connected to the insulator. (2) The bent terminal body of the cable end, which has a built-in terminal to be connected to the conductor terminal, is removably mated to the insulator terminal part containing the conductor terminal inside the insulator, and the outer periphery of the insulator terminal part is removably fitted. , each tip of a bifurcated leg made of a rigid body is rotatably attached to opposing sides, a hook is provided at the outer end of a rod that passes through the crotch of the bifurcated leg, and a threaded portion is provided on the outer periphery of the inner end, and the above-mentioned An insulator for a terminal body for a cable terminal, characterized in that a screw groove into which the threaded portion of the rod can be freely screwed is provided on the axis of the insulator terminal portion at the end of the bent portion of the terminal body and the terminal body. connection support structure.