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Hand-operated pulley for substation

A technology of substations and pulleys, which is applied in the direction of electrical components, portable lifting devices, switchgear, etc., can solve the problems of affecting work efficiency, increasing the tension of the pull rope body, and not being easy to disassemble, etc., to achieve increased work efficiency, simple and compact structure, Effects that are cheap to manufacture

Active Publication Date: 2014-02-26
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the process of substation repairing, the hand block can pull the pull rope with less effort, but the pull rope and the pulley of the pulley are slidingly connected, so slipping between the pull rope and the pulley often occurs during the pulling process, resulting in the transmission of equipment Extremely fast descent, the pull force on the pull rope body increases, the setting causes the pull rope to break, the conveying equipment falls and is damaged, and the staff is seriously injured
Although the fixed connection between the pull rope and the pulley can overcome the above shortcomings, but according to the size and weight of the pulling equipment, the length and thickness of the pull rope are different, and the pull rope is frequently replaced.
The pull rope is connected to the pulley by knotting on the surface of the pulley. The knotting method often causes looseness due to loose knots, causing hidden dangers; or too tight knots are not easy to disassemble, which affects work efficiency.

Method used

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  • Hand-operated pulley for substation
  • Hand-operated pulley for substation
  • Hand-operated pulley for substation

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Embodiment Construction

[0009] Substation hand block, such as figure 1 Shown, comprise tackle support 9, the middle part of tackle support 9 one side is fixed support shaft 3, and pulley 8 is installed on support shaft 3, and rocker 1 is housed on the pulley 8, and safety hook 10, pulley 8 are installed on the lower end of tackle support 9. Provide a through hole 16 on the top, and two straight rods 17 are arranged in the through hole 16, and the active force is evenly distributed on the two straight rods 17, and the two straight rods 17 interact, and the width of the straight rods 17 after being brought together is the same as that of the through holes 16. Corresponding inner diameters keep compact. The two ends of each straight rod 17 are outside the through hole 16, the lower end of the straight rod 17 is provided with a wedge-shaped head 18, the tip of the wedge-shaped head 18 is downward, and the wedge-shaped head 18 is convenient to enter the through-hole 16 from top to bottom in the direction ...

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Abstract

A hand-operated pulley for a substation comprises a pulley support. A supporting shaft is fixed in the middle of the pulley support, a pulley wheel is installed on the supporting shaft, a crank is installed on the pulley wheel, a safety hook head is installed at the lower end of the pulley support, the pulley wheel is provided with a through hole, two straight rods are arranged in the through hole, two ends of every straight rod are positioned on the outer portion of the through hole, the lower ends of the straight rods are provided with wedge-shaped heads, tips of the wedge-shaped heads are downwards, wedge blocks are arranged on the upper portions of the straight rods, tips of the wedge blocks are upwards, the upper portions of the two straight rods are connected with a cylinder block, the bottom of the cylinder block is provided with a blind hole, the straight rods are inserted in the blind hole, a hole wall of the blind hole is provided with a wedge block hole, the wedge blocks penetrate through the wedge block hole, the top of the cylinder block is connected with a pull rope, and a spring piece is arranged between the two straight rods. The pull rope is fixedly connected with the pulley wheel, slippage of the pull rope and the pulley wheel is avoided, a device lifts stably, the pull rope is stressed evenly, and safety in pull rope use is guaranteed; different pull ropes can be replaced conveniently according to the difference of transported devices, the pull rope and the pulley wheel are convenient to dismantle and install, and working efficiency is improved.

Description

technical field [0001] The invention relates to a substation equipment, in particular to a substation hand pulley. Background technique [0002] In the process of substation repairing, the hand block can pull the pull rope with less effort, but the pull rope and the pulley of the pulley are slidingly connected, so slipping between the pull rope and the pulley often occurs during the pulling process, resulting in the transmission of equipment Extremely fast descent, the tension on the pull rope body increases, and the setting causes the pull rope to break, the conveying equipment falls and is damaged, and the staff is seriously injured. Although adopting fixed connection between the stay rope and the pulley can overcome the above-mentioned shortcomings, but according to the size and weight of the pulling equipment, the length and thickness of the stay rope are selected differently, and the stay rope is frequently replaced. The stay rope is connected to the pulley by knottin...

Claims

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Application Information

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IPC IPC(8): B66D3/12H02B3/00
Inventor 冯海清袁森冯迎春苏雷李守金杨淑增于强张志强李厚义孙国先唐超刘玉海姜建平厉荣杰马进明王宝利刘海威王安山毕斌
Owner STATE GRID CORP OF CHINA
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