CN204333887U - Head structure of an inflatable high-voltage cable - Google Patents

Abstract

The utility model relates to a kind of end enclosure structure of inflatable high-tension cable, comprise cable tail end, valve cock and aluminum pipe, described aluminum pipe one end and cable tail end are tightly connected, other end aluminium sheet seals, thermal shrinkable sleeve is surrounded by outside described cable tail end and aluminum pipe, described valve cock through the middle part of aluminium sheet, and is fixed on aluminium sheet.The utility model installs aluminum pipe and valve cock additional at high-tension cable tail end, valve cock can be passed through, realize the inner inflated with nitrogen of the backward cable of sealing, with detection streamer body and cable two ends sealing property, thus solve the problem that originally can only seal and but can not check its sealing quality.

Description

Head structure of an inflatable high-voltage cable

technical field

The utility model relates to the technical field of electric cables, in particular to a head structure of an inflatable high-voltage electric cable.

Background technique

The common method of sealing the end of high-voltage cables is to use aluminum plates to weld and seal corrugated aluminum sheaths. Water enters the cable, causing the cable to be scrapped or the service life is seriously shortened). Therefore, for those skilled in the art, it is necessary to develop a method that can not only seal the head, but also inflate the high-voltage cable to detect whether the sealing performance of the two ends of the high-voltage cable is good. good.

Contents of the invention

The technical problem to be solved by the utility model is to provide a head structure of an inflatable high-voltage cable. Nitrogen can be filled into the cable through the valve to detect the sealing performance of the cable body and the two ends of the cable, so as to solve the problem that the original only can be sealed. It is not possible to check whether the seal is good or bad.

The technical scheme adopted by the utility model to solve the technical problem is: to provide a head structure of an inflatable high-voltage cable, including a cable tail end, a gas valve and an aluminum tube, one end of the aluminum tube is sealed and connected to the cable tail end, The other end is sealed with an aluminum plate, the cable end and the outer side of the aluminum tube are covered with a heat-shrinkable sleeve, and the air valve passes through the middle of the aluminum plate and is fixed on the aluminum plate.

As a supplement of the utility model, the air valve and the aluminum plate are closely spaced through a sealing ring.

As another supplement of the present utility model, the aluminum tube is connected to the tail end of the cable by welding.

Beneficial effect

The utility model relates to a head structure of an inflatable high-voltage cable. Nitrogen can be filled inside the cable through an installed valve to detect the sealing performance of the cable body and the two ends of the cable. Adding a section of aluminum tube can prevent the valve from being heated. failure problem.

Description of drawings

Fig. 1 is a sectional view of the utility model.

Detailed ways

Below in conjunction with specific embodiment, further set forth the utility model. It should be understood that these embodiments are only used to illustrate the present utility model and are not intended to limit the scope of the present utility model. In addition, it should be understood that after reading the content taught by the utility model, those skilled in the art can make various changes or modifications to the utility model, and these equivalent forms also fall within the scope defined by the appended claims of the application.

As shown in Figure 1, the embodiment of the present utility model relates to a head structure of an inflatable high-voltage cable, including a cable tail end 4, a gas valve 6 and an aluminum tube 2, and one end of the aluminum tube 2 is connected to the cable tail end 4 Sealed connection, the other end is sealed with an aluminum plate, the outer side of the cable end 4 and the aluminum tube 2 is covered with a heat shrinkable sleeve 1, and the valve 6 passes through the middle of the aluminum plate and is fixed on the aluminum plate.

The sealing ring gasket 5 is passed between the air valve 6 and the aluminum plate.

The aluminum tube 2 is connected to the cable tail end 4 by welding.

Example

Add a section of aluminum tube 2 about 150mm long to the end of the high-voltage cable, weld and seal one end of the aluminum tube 2 with the cable end 4, and weld the other end of the aluminum plate to seal it, and put it on the outside of the aluminum tube 2 and the cable end 4 Heat-shrinkable sleeve 1, heat the heat-shrinkable sleeve 1 to shrink and cover the aluminum tube 2 and the cable end 4. After cooling, a hole is opened in the middle of the aluminum plate, and the valve 6 is installed on the opening. A sealing gasket 5 is also provided to prevent the problem of leakage when the air valve 6 is inflated to the inside of the cable.

Claims (3)

1. A head structure of an inflatable high-voltage cable, comprising a cable tail end (4), an air valve (6) and an aluminum tube (2), characterized in that one end of the aluminum tube (2) and the cable tail end (4) Sealed connection, the other end is sealed with an aluminum plate, the outer side of the cable tail (4) and the aluminum tube (2) is covered with a heat-shrinkable sleeve (1), and the valve (6) passes through the middle of the aluminum plate , and fixed on the aluminum plate. 2. The head structure of an inflatable high-voltage cable according to claim 1, characterized in that: the air valve (6) and the aluminum plate are sealed by a gasket (5). 3. The head structure of an inflatable high-voltage cable according to claim 1, characterized in that: the aluminum tube (2) is connected to the cable tail end (4) by welding.