JPH0249646Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" This invention is applicable to conductor parts from which the sheath is removed, such as branch parts, wire retention parts, stripped parts, cut terminal parts, etc. The present invention relates to an insulating and waterproof cover that provides electrical insulation protection and waterproofing for a portion where the insulation coating is removed.

“Conventional technology” Conventionally, the first insulating waterproof cover as described above
Structure as shown in Fig. 2
No. 2) is known. In this conventional insulating waterproof cover, half-cover half members 1 and 2 having a semi-cylindrical shape are connected via a thin wall portion 3, and an electrical connection portion 4 is formed by joining the half-cover members 1 and 2 together. A flow prevention wall 1a for filling a water sealant is provided on one of the peripheral contact surfaces of the cover half members 1 and 2, and a space 1b defined by the flow prevention wall 1a is provided. It is filled with a water-sealing agent, and the water-sealing agent ensures adhesion between the abutting surfaces of the cover half members and makes them watertight. Therefore, in this cover, there are cases in which the above-mentioned watertight agent is filled in the space 1b of the cover in advance, and in cases in which it is filled in the space 1b when the cover is used. Water sealants must not deteriorate, harden, or foam during storage, so in reality there are almost no water sealants that can be used as water sealants.
In the latter case, a fluid water sealing agent must be taken out from a separate container at a high place and filled into the space 1b, making the installation work of the insulating waterproof cover extremely complicated.

"Purpose of the invention" This invention was made in order to eliminate the above-mentioned drawbacks of the conventional technology.It eliminates the risk of the water sealant changing its state when the cover is stored before use, and therefore limits the types of water sealants that can be used. It is an object of the present invention to provide an insulating waterproof cover that is free from water-sealing and allows easy adhesion of the cover to electric wires regardless of the fluidity of the water-sealing agent.

"Structure of the Invention" The insulated waterproof cover according to the present invention comprises a thin film bag filled with a water sealing agent, which is housed in the inner hollow part of a pair of cover half members to cover the peeled part of the insulation coating of the insulated wire, and This device is characterized in that when the cover half members are closed together, the thin film bag is pierced by a protrusion protruding from the inner wall of the cover half member, and an embodiment thereof will be described below in detail based on the drawings. do.

3 to 5 show an embodiment of the present invention, which is an insulating waterproof cover for a branch connection. This insulating waterproof cover 10 is made up of two half-cover members 11 and 12 that are integrally connected by a thin part 13 for folding.
is equipped with flange parts 11a and 12a on the periphery, and has an inner hollow part 15 in the center in which the branch connection part 14 of the conductor is to be accommodated, and each flange part 11
On one side of a, 12a, there is a semicircular recess 11 for wire insertion.
b, 12b are formed, and semicircular recesses 11c, 12c for electric wire insertion and semicircular recesses 11d, 12d for branch wire insertion are formed on the other side, and a protrusion 12e is provided on one flange portion 12a. The other flange portion 11a is provided with a locking hole 11e into which the projection 12e fits.

A pointed projection 1 is provided on the inner wall of the portion forming the inner hollow portion 15 of each cover half member 11, 12.
6 is provided in a protruding manner, and a thin film bag 17 containing a water sealant is housed in the inner hollow portion 15 of the bag.

The water sealing agent sealed in the thin film bag 17 may include, for example, a grease-like non-curing water sealing agent such as a butyl-based mixture, or an air-curing or foaming water sealing agent such as polyurethane (for example, an isocyanate mixture). Can be used. Further, the thin film bag 17 may be one that can be easily torn when pressed against the protrusion 16 protruding from the inner wall of the portion forming the inner hollow portion 15. Further, in this embodiment, two water sealant-filled thin film bags 17 housed in each inner hollow portion 15 are connected to each other by a thread 17a.

To explain the work of attaching the insulating waterproof cover 10 to the electric wire, when the cover half members 11 and 12 are folded together as shown in Fig. 5 so as to cover the branch connection part 14 as shown in Fig. 4, the flange By the engagement of the protrusions 12e of the parts 11a, 12a with the locking holes 11e, both the parts 11, 12 are closed together, and the thin film bag is closed by the protrusions 16 protruding from the inner wall of the part forming the inner hollow part 15. 17
is pierced, and the watertight agent inside the inner hollow part 15
The area around the branch connection part 14 is covered with a water sealing agent, thereby making the branch part 14 waterproof. Note that the water sealing agent filled in the inner hollow part 15 is
It is indicated by A in the figures, FIG. 5, etc.

``Effect of the invention'' As explained above, the insulating waterproof cover of the invention is made up of a thin film bag containing a water sealant sealed in the inner hollow part of the cover, so the water sealant inside the thin film bag does not come into contact with air. Therefore, when the cover is stored, the water sealant does not deteriorate, harden, foam, or otherwise change its condition. In addition, there are no restrictions on the type of water sealant that can be used, and the work of making the cover watertight by attaching it to the electric wires can be applied to the inner wall of the part that forms the inner hollow part of the cover when the insulating waterproof cover is closed. The protrusion protruding from the top pierces the thin film bag and the water sealant in the thin film bag fills the area around the area where the insulation coating has been peeled off, which requires complicated work such as filling or applying water sealant on site as in the past. It can be carried out very easily and efficiently regardless of the fluidity of the water sealant.

[Brief explanation of the drawing]

Figure 1 is an exploded plan view of a conventional insulating cover, Figure 2
The figures are cross-sectional views of the state in which it is used, Figures 3 to 5.
The figures show an embodiment of the present invention, with Fig. 3 being a perspective view in an unfolded state, Fig. 4 being a front view showing a half part when attached to an electric wire, and Fig. 5 being a cross-sectional view similarly in an attached state. It is. 10...Insulating waterproof cover, 11, 12...Cover half member, 15...Inner hollow part, 16...Protrusion,
17...Thin film bag filled with water sealant.

Claims (1)

[Scope of utility model registration request] A cover 10 is provided with an inner hollow part 15 for accommodating an insulation coating peeled part of a covered electric wire, and the cover is composed of a pair of cover half members 11 and 12 that can be opened and closed, and the inner side of each cover half member is Projections 16 are provided on the inner walls of the portions forming the hollow portions, respectively, so as to project inwardly from each other when the cover half members are closed and integrated, and the inner hollow portions of the cover half members are provided with protrusions 16, respectively. An insulating waterproof cover for protecting a peeled portion of an insulation coating of a covered electric wire, characterized in that a thin film bag 17 containing a water sealant is housed therein.