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Small-size self-locking explosion-proof connector used for power cable wiring and installation method thereof

A technology for power cables and connectors, applied in the field of small explosion-proof connectors, can solve problems such as difficulty in ensuring construction quality, incomplete filling, and long curing time for silicone

Inactive Publication Date: 2017-11-07
张敬敏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the existing technology, in order to meet the explosion-proof requirements of the interface, it is generally realized by using fillers after wiring, such as sealing with filling glue, that is, using filling glue to seal the explosion-proof connector, and directly plugging the outlet of the wire core. Cement, prone to incomplete glue filling, difficult to ensure construction quality, and prone to cracks, short service life
Or it can be realized by filling and curing with silica gel, that is, using filled silica gel to seal the explosion-proof connector. Due to the long curing time of silica gel, the wiring effect is also affected by the curing mold, and its detectability and maintainability are not strong, so it is not suitable for replacement. Long-term Continuous power supply cannot be guaranteed

Method used

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  • Small-size self-locking explosion-proof connector used for power cable wiring and installation method thereof
  • Small-size self-locking explosion-proof connector used for power cable wiring and installation method thereof
  • Small-size self-locking explosion-proof connector used for power cable wiring and installation method thereof

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Embodiment Construction

[0036] Figure 1-3 The structure of the self-locking explosion-proof connector of the present invention is schematically shown, and the explosion-proof connector includes a connector housing 1 , a connecting device 2 , a sealing device 3 , and a wire pressing device 4 .

[0037] The connector housing 1 is a square tubular body with a stepped inner hole, and is composed of two parts, an upper shell 11 and a lower shell 12 . The upper casing 11 and the lower casing 12 are provided with self-locking bayonet openings, and the self-locking bayonet openings may be of a known structure (not shown in the figure). A gasket (not shown in the figure) is arranged between the upper casing 11 and the lower casing 12 to ensure the sealing between the upper and lower casings. Both ends of the housing 1 have an inlet end 13 and an outlet end 14 of the cable.

[0038] The connecting device 2 is arranged inside the housing 1 and includes a cable penetrating device 21 and a cable pressing devic...

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Abstract

The invention relates to a small self-locking explosion-proof connector used for power cable connection. Electric sparks must not be generated at the cable disconnection connection, so as to achieve the purpose of preventing accidents. The explosion-proof connector includes a connector housing, a sealing device, a crimping device, and a connecting device, wherein the connector housing includes two parts, an upper housing and a lower housing with a self-locking bayonet, and the connecting device is installed inside the housing, including Cable feed-throughs and cable hold-downs. The invention is suitable for cable connection in inflammable and explosive places, and can be used in dangerous chemical production and storage areas, underground coal mines, dust and explosion-related places, and the like.

Description

technical field [0001] The invention relates to the technical field of cable accessories used in power cable engineering, in particular to a small explosion-proof connector used for power cable wiring. Background technique [0002] When the production and storage areas of hazardous chemicals are out of control and leakage occurs, a large amount of flammable gas is dispersed in the air. If an electric spark is encountered, an explosion accident is likely to occur. Therefore, when the cable is disconnected, ordinary The connection method and insulation treatment must not produce sparks overflowing at the wiring, so as to achieve the purpose of preventing accidents. [0003] In the coal mine, there is a lot of coal dust, and the dust is often reduced by water spraying. Therefore, the coal mine is often humid, and the wiring should be equipped with moisture-proof ability to prevent short circuit. When the water is not sprinkled in time, the coal dust exceeds the limit, and the ...

Claims

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Application Information

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IPC IPC(8): H01R11/01H01R11/09H01R43/00
CPCH01R11/01H01R11/09H01R43/00
Inventor 张敬敏
Owner 张敬敏
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