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Interlocking device for breaker handcart

A circuit breaker handcart and interlocking device technology, which is applied to switchgear, pull-out switch cabinets, electrical components, etc., can solve problems such as insufficient safety distance, arc burns, equipment and personal injuries, etc., to ensure personal safety, The effect of convenient operation and simple structure

Inactive Publication Date: 2013-12-04
RONGCHENG ELECTRICAL GENERAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the live part inside the circuit breaker handcart and the interlocking rod are not completely closed, there is not enough safety distance between the interlocking rod and the charged body. Personnel arc burns
Injury to equipment and people does not comply with the provisions of the State Grid Corporation of China's "Electricity Safety Work Regulations"

Method used

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  • Interlocking device for breaker handcart
  • Interlocking device for breaker handcart

Examples

Experimental program
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Embodiment Construction

[0010] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0011] Such as figure 1 As shown, the circuit breaker handcart is provided with an operation port 8 on the car body 1, and the interlocking operation is performed through the space of the operation port 8.

[0012] combine figure 1 and figure 2 As shown, the circuit breaker handcart interlocking device includes an interlocking rod 2. The lower end of the interlocking rod is threaded. It passes through the support plate 3 at the lower part of the handcart and is fixed with a nut 6. The upper end of the interlocking rod 2 passes through the handcart. The top cover is fitted with a spring 4 on the interlocking rod 2, one end of the spring 4 is against the support plate 3, and the other end is against the spring chuck 5 on the interlocking rod.

[0013] In traditional operation, the operator puts his hand into the figure 1 The operation port 8 shown in...

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Abstract

The invention relates to electrical equipment, and provides an interlocking device for a breaker handcart for avoiding the potential safety hazards when locking operation is carried out on the JYN2-10 type breaker handcart used at present. The interlocking device for the breaker handcart is safe, reliable, and flexible and convenient to operate, and comprises an interlocking bar. Threads are arranged at the lower end of the interlocking bar, the interlocking bar penetrates through a supporting plate on the lower portion of the handcart and is fixed through a nut, the upper end of the interlocking bar penetrates through a cover plate on the top of the handcart, and the interlocking bar is sleeved with a spring. One end of the spring abuts against the supporting plate, and the other end of the spring abuts against a spring clamping plate on the interlocking bar. The interlocking device for the breaker handcart is characterized in that an interlocking operation bar perpendicular to the interlocking bar is fixed to the interlocking bar and arranged on the upper portion of the spring clamping plate on the interlocking bar and transversely extends out of the operation opening of the breaker handcart. The interlocking device for the breaker handcart is simple in structure, safe, reliable and convenient to operate, and can be widely applied to the improvement of the JYN2-10 type breaker handcart used at present and produced long time ago.

Description

[0001] technical field [0002] The invention relates to electric power equipment, in particular to a handcart interlocking device for a 10kV circuit breaker of the power supply equipment. Background technique [0003] The JYN2-10 circuit breaker handcart produced earlier is still widely used in various power supply departments. The five-proof mechanism of this circuit breaker handcart is not perfect. When operating this type of circuit breaker handcart, the operator must pass the hand through the operating hand hole. Reach into the handcart of the circuit breaker and hold the interlocking lever to press down the interlocking lever. Only after the interlocking lever is separated from the keyhole of the switch cabinet can the handcart be moved in and out. Since the live part inside the circuit breaker handcart and the interlocking rod are not completely closed, there is not enough safety distance between the interlocking rod and the charged body. Personnel arc burns. Injury...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B11/133
Inventor 滕超王宾军曲荣原王书贤
Owner RONGCHENG ELECTRICAL GENERAL
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