A cold-shrinkable outdoor terminal
A terminal, outdoor technology, applied in the direction of cable installation, cable accessories, electrical components, etc., can solve the problems of waste, separation of adhered parts, turning into waste products, etc., to improve the adhesion effect, the connection is tight, and the adhesion area increases Effect
Active Publication Date: 2018-10-26
SUZHOU DINGXIN COLD & HEAT SHRINKABLE MATERIAL CO LTD
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AI Technical Summary
Problems solved by technology
[0003] During the use of cold-shrinkable cable accessories, in order to reduce the extraction resistance of the support tube, the adhesion strength of the spiral gap of the support tube is designed to be small, but when this support tube is stored for a long time, it is subjected to the radial pressure of the casing. It will be deformed, and even the adhesion part will be separated, causing it to become a waste product
And the support tube is basically non-reusable, resulting in waste
Method used
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Embodiment Construction
[0018] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0019] As shown in the figure, a cold-shrinkable outdoor terminal of the present invention includes a hollow insulating tube 1, a stress cone 2 is embedded in the inner wall of one end of the hollow insulating tube 1, and several sheds 3 are arranged on the outside of the hollow insulating tube 1, Also includes a support tube 4, the support tube 4 is hollow tubular, its two ends are closed, one end of the support tube 4 has an air hole 5, and the air hole 5 is provided with a sealing cover 6; the support tube 4 The groove 7 and the protrusion 8 corresponding to the groove 7 are arranged on the top, and the support pipe 4 is wound into a helical shape by fastening the protrusion 8 and the groove ...
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The invention discloses a chilling shrink outdoor terminal. The outdoor terminal comprises a hollow insulation tube, a stress cone is embedded in the inner wall of one end of the hollow insulation tube, and the outer part of the hollow insulation tube is provided with a plurality of umbrella skirts. The outdoor terminal further comprises a supporting tube, the supporting tube is of a hollow tubular structure, both ends of the supporting tube are closed, and an air hole is formed in one end of the supporting tube and is provided with a sealing cover; a groove and a protrusion corresponding to the groove are formed in the supporting tube, and the supporting tube is wound in a spiral shape through clasping of the protrusion and the groove. According to the chilling shrink outdoor terminal, the inflatable supporting tube is wound in the spiral shape, and in an inflated state, adhesion areas between adhesion parts of the supporting tube are increased, improving the adhesion effect; the supporting tube is deflated when taken out, and thus the supporting tube is easy to take out and can be reused; meanwhile, the supporting tube is wound in the spiral shape through the protrusion and the groove, the connection is tight, and deformation will not occur even if the adhesion parts separate.
Description
technical field [0001] The invention relates to a cold-shrinkable outdoor terminal, which belongs to the technical field of cables. Background technique [0002] Cold-shrinkable cable accessories are formed by injection vulcanization of elastomer materials in the factory, and then expanded and lined with plastic spiral supports. When installing on site, these pre-expanded parts are placed on the treated cable ends or joints. Pull out the inner supporting plastic spiral strip (supporting tube) after processing, and the elastomer material on the surface is pressed against the cable insulation. Because cold-shrinkable cable accessories rely on elastic retraction force at room temperature, instead of being heated and shrunk by fire like heat-shrinkable cable accessories, they are commonly called cold-shrinkable cable accessories. [0003] During the use of cold-shrinkable cable accessories, in order to reduce the extraction resistance of the support tube, the adhesion strength ...
Claims
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IPC IPC(8): H02G15/184
CPCH02G15/184
Inventor 严云翔钱洪凯
Owner SUZHOU DINGXIN COLD & HEAT SHRINKABLE MATERIAL CO LTD