A foldable and retractable power transmission line cable laying trolley
By designing a wire-feeding trolley with symmetrical wheel sets and articulated balance guard plates, the problems of large size and induced current in traditional wire-feeding trolleys have been solved, achieving stable conveying, convenient transportation, and improved safety.
CN116154671BActive Publication Date: 2026-05-26YUNNAN POWER TRANSMISSION & TRANSFORMATION ENG CO LTD
Patent Information
- Authority / Receiving Office
- CN Β· China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- YUNNAN POWER TRANSMISSION & TRANSFORMATION ENG CO LTD
- Filing Date
- 2022-12-29
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
Existing traditional cable-laying pulleys are large in size and difficult to transport, and they are prone to generating induced currents when transmitting high-voltage cables, posing safety hazards.
Method used
Design a foldable cable-laying trolley with a symmetrical wheel set and articulated balance guard plate structure. It can adaptively adjust the angle and fold for storage during transportation. Induced current is eliminated by limiting pins and metal grounding wires.
Benefits of technology
It achieves stable and efficient conveying of the wire feeding pulley, reduces space occupation, facilitates transportation and storage, eliminates the danger of induced current and electric arc, and improves safety and ease of use.
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Smart Images
Figure CN116154671B_ABST
Abstract
This invention discloses a foldable and retractable power transmission line laying trolley, comprising a wheel assembly consisting of conductor wheels and wire rope wheels, and a main frame for mounting the wheel assembly. The wheel assembly is characterized in that it is symmetrically distributed on both sides of the main frame, with two wheel assemblies on each side. Each wheel assembly is axled and mounted at both ends of a balance guard plate, which is hinged. This allows the balance guard plate and its wheel assemblies to fold and retract symmetrically and longitudinally under thrust. A conductive wheel assembly is also positioned transversely between the two wheel assemblies in the middle of the balance guard plate, with one end connected to a grounding conductor. This design not only enables stable and efficient laying operations but also allows for easy folding and storage during transport and storage. Furthermore, it guides induced electricity to the ground, preventing arcing and improving usability and safety.
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