Power box rainproof device for changing ceiling height by pulling to open/close heat dissipation port

Abstract

The invention discloses a power box rainproof device for changing a ceiling height by pulling to open / close a heat dissipation port. The power box rainproof device comprises a controllable ceiling, amovable door, a box body, a movable door handle and a heat dissipation frame row, wherein the controllable ceiling is arranged in the true north direction of the box body and is connected to the box body; and the movable door is connected with the box body. The power box rainproof device has beneficial effects that the heat inside the box body is dissipated by using a triangular space formed between an edge plate and an edge plate fixing groove; the fixed shaft of the ceiling moves downward with a slide block by pulling a connecting rope such that an angle between the two edge plates becomes larger; when the two edge plates match the edge plate fixing groove, the triangular space is closed so as to achieve a purpose of avoiding the entry of rainwater; when the angle between the two edge plates becomes larger, the ends of the two edge plates away from the fixed shaft of the ceiling push a first plate and a second plate out of a rectangular cavity so as to achieve a rain shielding function and reduces the amount of the rain hitting the box body, thereby achieving a rainproof effect.

Description

technical field [0001] The invention relates to the field of power boxes, in particular to a rainproof device for a power box that can be pulled to change the height of the ceiling to control the switch of the cooling vent. Background technique [0002] Power boxes are widely used in loading instruments, meters, electronics, communications, automation, sensors, smart cards, industrial control, precision machinery and other items. Most of the materials are high-quality aluminum alloy profiles. Good performance and other characteristics, it is an ideal box for high-end instruments and meters. The current power box has the following defects: [0003] The aluminum alloy material is a metal object. Under the sun, the internal temperature will rise due to the high external temperature. Therefore, it is necessary to set up a cooling vent on the power box. When encountering rainy weather, rainwater can easily enter the box through the cooling vent, and The aluminum alloy material w...

AI Technical Summary

Problems solved by technology

[0003] The aluminum alloy material is a metal object. Under the sun, the internal temperature will rise due to the high external temperature. Therefore, it is necessary to set up a cooling vent on the power box. When encountering rainy weather, rainwater can easily enter the box through the cooling vent, and The aluminum alloy material will be corroded when encountering rainwater, which will make the components inside the box damp, thus affecting the normal use of the components inside the power box

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