Rotary derrick cap

A pole-holding cap and pole-holding technology, which is applied in towers, building types, buildings, etc., can solve the problems of easy occurrence of safety accidents, unfavorable to conventional construction, and large limitations of holding poles, so as to reduce engineering costs and improve construction efficiency. and safety and weight reduction effects

CN102864962BActive Publication Date: 2014-06-11STATE GRID CORP OF CHINA +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2014-06-11

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Abstract

The invention discloses a rotary derrick cap which comprises a sleeve cap for being connected with a derrick body. A cylindrical column vertical to the sleeve cap is fixedly connected onto the upper end surface of the sleeve cap, and the peripheral wall of the column is provided with a hoisting component and an anchor frame successively from bottom to top which are assembled with the outer periphery of the column. The hoisting component comprises a frame-structure square support frame which is sleeved on the column through a cylinder and rotates around the column, and four corners of the square support frame are provided with pulleys for hoisting tower materials respectively. An anchor rod is arranged on a central axis of the square support frame, two ends of the anchor rod are provided with anchor holes respectively which are used for threading anchors controlling the rotation direction of the derrick cap, and hoisting holes for mounting the pulleys are further arranged on the anchor rod. The rotary derrick cap can rotate freely for 360 degrees, the technology of outside anchor and inside suspension is achieved, and simultaneously, tower materials of various weights can be hoisted, the engineering efficiency is improved, and the construction safety is guaranteed.
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Description

technical field

[0001] The invention relates to a lifting tool in the assembly process of a high-voltage iron tower for erecting an ultra-high-voltage transmission line in the field of electric power construction, in particular to a pole cap installed on the top of a lifting pole. Background technique

[0002] In transmission lines, ultra-high-voltage transmission lines need to be erected with high-voltage iron towers, which are generally four sets of square-shaped iron towers assembled vertically from several steel rods. When erecting taller and heavier components such as high-voltage iron towers, the pole is a commonly used hoisting tool. When erecting and assembling iron towers, inner suspension poles are usually used. Inner suspension poles mean that the poles are placed in the center of the tower structure in a suspended state.

[0003] The pole generally includes a pole cap and a base, the pole cap and the base are connected through a rod body, and the pole cap includ...

Examples

Embodiment Construction

[0026] Below in conjunction with embodiment the present invention is described in further detail:

[0027] The structure of the present invention is as figure 1 As shown, it includes a sleeve cap 1 for connecting the pole body, the upper end surface of the sleeve cap 1 is fixedly connected with a cylindrical column 4, the column 4 is vertically arranged with the sleeve cap 1, and the outer peripheral wall of the column 4 is sequentially arranged from bottom to top A lifting assembly 2 and a wire frame 3 matched with the outer circumference of the column 4 are arranged.

[0028] The structure of lifting assembly 2 is as Figure 4 , Figure 5 As shown, it includes a square support frame, which is a frame structure, and the square support frame is set on the column 4 through the central cylinder and can rotate around the column 4 . A flat plate 12 is welded below the square support frame, and the flat plate 12 is welded together with the bottom surface of the cylinder at the c...