JPH0590827U - Protective cover for wire connection - Google Patents

Abstract

(57) [Summary] [Purpose] The outer envelope of the wire connection was made easy to increase the insulation effect and prevent electric shock, short circuit, electric leakage, and discharge accident. [Structure] An inner cylinder 1 and an outer cylinder 2 each made of an electrically insulating material such as rubber so as to enclose a connection portion b of an electric wire a. Cutting over 3,
4, the inner cylinder 1 is first opened to open the slit 3 to cover the electric wire connecting portion b, and then the outer cylinder 2 is opened to open the slit 4 to be attached and polymerized on the outer surface of the inner cylinder 1. The positions of the slits 3 and 4 are displaced from each other for use, and the tip 2a of the outer cylinder 2 is used.
Is expanded outward to have a large diameter, and the distance from the connecting portion b is increased to enhance the insulating effect.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a protective cover that covers an exposed connection portion of an electric wire, a cable, or the like to prevent an electric accident due to electric shock, electric leakage, or rain and snow.

[0002]

[Prior Art]

 The electric wire connection part of various electric equipment is especially covered with insulating tape or the like, but in many cases it is exposed because the covering is troublesome.

[0003]

[Problems to be solved by the device]

 Therefore, when the electric wire connections are close to each other, small animals such as rats or snakes are likely to come into contact between the two connections, and an electric accident is likely to occur. The circuit breaker at the site operated and a power outage occurred in a certain area, which had many adverse effects on information-related institutions.

[0004]

[Means for Solving the Problems]

 The present invention aims to eliminate the above-mentioned conventional harmful effects by encapsulating and insulating a wire connecting portion with a simple means, and has an inner diameter and a length capable of enclosing the wire connecting portion. A cylinder and an outer cylinder having an inner diameter that fits and overlaps with the inner cylinder are molded with an electrically insulating material such as rubber, and each inner wall of the inner and outer cylinders is cut along the axial direction over the entire length. Is provided, and the tip of the outer cylinder to be fitted into the inner cylinder is expanded outward to have a large diameter.

[0005]

[Action]

 As shown by a phantom line in FIG. 3, the protective cover according to the present invention expands the inner cylinder 1 with the slit 3 on the upper side by the slit 3 and attaches it upward from the lower surface of the connecting portion b of the wire a. After encapsulating the connecting portion b, the outer cylinder 2 is expanded with the slit 4 as the lower part and is covered with the slit from the upper portion of the inner cylinder 1 downward, and if necessary, the outer portion of the outer cylinder 2 is covered. With tape c.

As described above, since the inner and outer cylinders 1 and 2 are used by being expanded by the respective slits 3 and 4, it is possible to cover the connecting portion b easily without touching the connecting portion b even in a narrow space. Moreover, the slits 3 of the inner cylinder 1 are at the upper position, but the outer surface of the outer cylinder 2 is covered with the slits 4 of the outer cylinder 2, and the slits 4 are at the lower position. There is nothing to do. However, the positions of the slits 3 and 4 of the two cylinders 1 and 2 are not limited to the upper and lower positions, and it is desirable that the mutual positions of the slits 3 and 4 be different by an arbitrary angle.

Further, the tip of the outer cylinder 2 is particularly expanded outward to form the large-diameter portion 2a, so that the distance between the outer cylinder 2 and the connection portion b can be increased to enhance the insulating effect and prevent an electrical accident.

[0008]

【Example】

 An embodiment of a protective cover according to the present invention will be described with reference to the drawings. The present invention comprises an inner cylinder 1 and an outer cylinder 2 which are molded from an electrically insulating material such as rubber.

The inner cylinder 1 has one end having an inner diameter capable of enclosing the outer periphery of the connection portion b of the electric wire a and the other end having a predetermined length which is a small diameter portion capable of enclosing the electric wire a, and the outer cylinder 2 has an inner diameter. The inner surface of the inner cylinder 1 is enclosed in the outer surface of the inner cylinder 1 so as to be overlapped with the inner surface of the inner cylinder 1.

The inner and outer cylinders 1 and 2 are provided with slits 3 and 4 along the axial direction at one location on the respective peripheral walls, and the inner and outer cylinders 1 and 2 are made elastic by material elasticity by the slits 3 and 4 in FIG. It was expanded as shown by the dotted line and automatically restored to a cylindrical shape.

In the illustrated embodiment, the outer cylinder 2 is fitted and superposed on the outer surface of the inner cylinder 1 so that the state where the positions of the slits 3 and 4 of both cylinders are displaced by 180 ° can be confirmed. In relation to each other, the convex portion 5 and the concave portion which are fitted to each other are provided, but there is no limitation of 180 ° in use, and therefore the position of the concave and convex also changes according to the set positions of the cuts 3 and 4.

It is desirable that the tip 2a of the outer tube 2 be far away from the wire connecting portion b in order to enhance the insulation effect. In the illustrated example, the tip of the outer tube 2 is expanded into a trumpet shape so that the tip 2a has a large diameter. However, the tip 2a is not limited to the trumpet shape, and the tip 2a may be formed to have a large diameter by forming a step 2b as shown by a phantom line in FIG.

In the protective cover configured as described above, as described above, the inner cylinder 1 is first expanded by the slits 3 to cover the wire connecting portion b, and then the outer cylinder 2 is slit. A state in which the slits 4 of the outer cylinder 2 are prevented from being located in the upper position as much as possible and the positions of the slits 3 and 4 of the both cylinders 1 are displaced from each other. Attach it to and use it.

[0014]

[Effect of the device]

 According to the present invention, the inner and outer cylinders are made of an electrically insulating material such as rubber, and both cylinders are provided with axial slits on the peripheral wall, and the elastic elasticity of the material allows the slits to expand freely. Since it is automatically restored to its original shape, it is very easy to attach and detach the wire connection part and it is safe to handle in narrow spaces, and the positions of the slits can be freely changed so that they can be displaced from each other. This prevents the wire connection part from being exposed directly to the outer surface from the cut, does not flood the inside from the cut, and the tip of the outer cylinder, which is close to the wire connection and has a chance to come into contact with other objects, moves outward. By expanding the diameter to a larger value, the distance from the wire connection part can be increased, the insulation effect can be increased, and leakage and discharge can be accurately prevented.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an inner cylinder, showing an embodiment according to the present invention.

FIG. 2 is a cutaway side view showing a usage state.

3 is a cross-sectional view of FIG.

[Explanation of symbols]

1 Inner cylinder 2 Outer cylinder 2a Outer cylinder tip 3, 4 Inside, outer cylinder slit a Electric wire b Electric wire connection part

Claims (2)

[Scope of utility model registration request] 1. An inner cylinder having an inner diameter and a length capable of enclosing an electric wire connecting portion and an outer cylinder having an inner diameter fitting and superposed on the inner cylinder and having an approximately same length, both of which are electrically insulating materials such as rubber. A protective cover for the electrical connection part, which is formed by molding and is provided with a slit along the axial direction on each peripheral wall of the inner and outer cylinders along the axial direction. 2. A protective cover for an electric wire connecting portion according to claim 1, wherein the outer cylinder has a large diameter by expanding the tip thereof outward.