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Explosion-proof operation column

An operating column and front cover technology, applied in instruments, mechanical control devices, control mechanisms, etc., can solve problems such as the entry of explosive dust, wasted energy, and the operating column is not sealed, and achieves improved explosion-proof performance and reduced energy consumption. Effect

Active Publication Date: 2015-08-05
QINGDAO OUSHENG LIGHTING CO LTD
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Problems solved by technology

[0005] However, although the traditional explosion-proof operation column is equipped with a positive pressure system, the operation column itself is not sealed. In this way, not only the positive pressure system needs to be kept in working condition at all times, resulting in waste of energy, but also there is explosive dust in the external high pressure state. Hazard of entering the operating column

Method used

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  • Explosion-proof operation column

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Embodiment Construction

[0024] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.

[0025] In the description of the present invention, unless otherwise stated, the meaning of "plurality" is two or more; the terms "upper", "lower", "left", "right", "inner", "outer" , "front end", "rear end", "head", "tail", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation should therefore not be construed as limiting the invention. In addition, t...

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Abstract

An explosion-proof operation column comprises a shell. The shell comprises a front cover and a rear shell. An air tightness system is also included. The air tightness system comprises an air pump, an air storage tank, a sealing ring, an air pressure sensor and a one-way valve, wherein the sealing ring is an annular air bag and a mounting groove is arranged on the annular air bag; the air pump is provided with two air outlet pipelines, one air outlet pipeline is connected with the sealing ring and the tail end of the other air outlet pipeline is provided with the one-way valve; and the one-way valve is fixedly arranged in the shell. According to the explosion-proof operation column provided by the invention, as a sealing design is adopted, the explosion-proof performance is improved to a large degree. In addition, as positive pressure explosion protection is adopted, after the sealing ring is arranged, the overall operation column has an air tightness structure, inner high pressure air can be prevented from being leaked externally, long-time high pressure can be kept with only one time of air charging, and compared with the traditional technology, energy consumption can be reduced to a large degree.

Description

technical field [0001] The present invention relates to the technical field of electrical control equipment, and more specifically relates to an explosion-proof operation column. Background technique [0002] The operation column is an easy-to-use operating system, which is widely used in petroleum and mining fields for remote control. Due to the operating environment of the operating column, the operating column will generally be treated with explosion-proof treatment. [0003] For those skilled in the art, the operation column has a built-in circuit board and various electrical components, and electric sparks, electric arcs and the like will inevitably occur in the operation column when it is powered on during use. Once the explosive dust from the outside is mixed into the operation column, it will explode after encountering electric spark or arc. [0004] In order to achieve the purpose of explosion-proof, the structure of the traditional explosion-proof operation colum...

Claims

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Application Information

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IPC IPC(8): G05G25/04
Inventor 宋文强
Owner QINGDAO OUSHENG LIGHTING CO LTD
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