Locking device for preventing insufficient safe distance between operation crane and high-voltage live-line equipment
A high-voltage live, safe distance technology, used in safety devices, transportation and packaging, load hanging components, etc., to achieve the effect of time-saving operation and simple structure
Active Publication Date: 2022-02-15
SHENZHEN POWER SUPPLY BUREAU
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Problems solved by technology
[0004] However, during on-site operations, accidental collisions between the work crane and the high-voltage live equipment often occur due to insufficient distance and cause power grid accidents.
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[0033] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0034] Such as Figure 1 to Figure 3 As shown, in the embodiment of the present invention, a locking device provided to prevent the insufficient safety distance between the working crane and the high-voltage live equipment is installed on the working crane (not shown), and the working crane includes the crane body, and is installed on the The driving motor on the crane body and the working arm driven by the driving motor to perform telescopic movement back and forth; the locking device includes a safety distance detection unit 1 and a crane working locking unit 2 that communicate with each other; wherein,
[0035] The safety distance detection unit 1 is installed on the front end of the working arm, and is used to detect the presence of high-voltage live equipment...
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The invention provides a locking device for preventing insufficient safe distance between an operation crane and high-voltage live-line equipment. The locking device is mounted on the operation crane comprising a crane body, a driving motor and a working arm. The locking device comprises a safe distance detection unit and a crane working locking unit which communicate with each other, the safe distance detection unit is mounted at the front end of the working arm and detects the existence condition of the high-voltage live-line equipment in a forward preset measurement range of the working arm under the working condition that the driving motor drives the working arm to move, and if the existence condition exists, a locking instruction is issued to the crane working locking unit; and the crane work locking unit is mounted on a power supply circuit of the driving motor, and cuts off the power supply circuit of the driving motor which supplies power to the driving motor after receiving a locking instruction, so that the working arm is not accidentally touched with the high-voltage live-line equipment. The invention is implemented, the device is simple in structure, convenient to operate, time-saving and labor-saving, and capable of preventing the problem that the distance between the operation crane and the high-voltage live-line equipment is insufficient.
Description
technical field [0001] The invention relates to the technical field of electric power safety, in particular to a locking device for preventing an insufficient safe distance between an operating crane and high-voltage electrified equipment. Background technique [0002] The "Electricity Safety Work Regulations" stipulates in the technical measures to ensure safety that there should be a certain safe distance between conductive objects (such as staff, etc.) and live high-voltage equipment during operation. For example, 500kV is not less than 8.5 meters, 220kV is not less than 6 meters, 110kV is not less than 5 meters, 35-66kV is not less than 4 meters, 1-10kV is not less than 3 meters, and below 1kV is not less than 1.5 meters, etc. [0003] Despite the above-mentioned safety technical measures during the operation, due to the complexity and chaos of the construction site and the imperfect construction plan, the risk is difficult to control. In addition, there are loopholes i...
Claims
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IPC IPC(8): B66C15/04
CPCB66C15/04Y02T10/70
Inventor 王世祥伍国兴陈鲲
Owner SHENZHEN POWER SUPPLY BUREAU