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Explosion-proof transposition device

A transposition device and explosion-proof technology, which is applied to emergency protection devices, parts of protection switches, electrical components, etc., to achieve good practical effects, increase electrical clearance and creepage distance, and improve withstand voltage.

Pending Publication Date: 2022-03-29
北京瑞赛长城航空测控技术有限公司 +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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  • Explosion-proof transposition device
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  • Explosion-proof transposition device

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Embodiment Construction

[0021] In order to further illustrate the technical means and functions adopted by the present invention to achieve the intended purpose of the invention, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but it is not intended to limit the present invention.

[0023] The object of the present invention is to provide a flameproof transposition operation device, which realizes on-off control of non-safety active contact circuits in flameproof products. The L-shaped knob handle in the operating device drives the rotating shaft to rotate on the cylindrical flame-proof surface of the flame-proof joint part. Click the switch contact distance to complete the switch transposition state. The L-shaped knob handle, the special-shaped card sl...

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Abstract

The invention discloses an explosion-proof transposition device which is characterized by comprising an explosion-proof shell (1), a transposition component and a contact switch (3), the contact switch (3) is located in the explosion-proof shell (1), and the transposition component penetrates through the explosion-proof shell (1) and comprises a knob part (206) located outside the explosion-proof shell (1) and a plectrum part (205) located in the explosion-proof shell (1). The knob part (206) and the plectrum part (205) are connected through a rotating shaft (203), so that the plectrum part (205) can rotate along with the rotation of the knob part (206), and when the knob part (206) rotates to a first position, the plectrum part (205) is in contact with the touch switch (3), and the touch switch (3) is switched from a first state to a second state. The device is applied to the explosion-proof shell, and is simple in structure, convenient to install and reliable to operate.

Description

technical field [0001] The invention relates to a flameproof transposition device, in particular to a switch transposition device in a flameproof shell. Background technique [0002] Explosion-proof electrical appliances are classified into Class I, Class II and Class III according to the requirements of GB3836 "Explosive Atmosphere". Class I electrical equipment is used in coal mine gas environment. According to the explosion-proof type, different explosion-proof types or type combinations such as explosion-proof type, increased safety type, intrinsically safe type, and potting type are separated. Class I flameproof enclosure, according to the national standard, except for the conductors conforming to the intrinsically safe circuit in GB3836 and the conductors used for equipotential bonding or grounding, all accessible conductors should be separated from the power supply before the flameproof enclosure is opened. . The separation device requires the flameproof enclosure ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/10
CPCH01H71/1054
Inventor 李艳冬邢素堂张涛
Owner 北京瑞赛长城航空测控技术有限公司
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