Electric spiral lifting rod

Abstract

The invention relates to an electric spiral lifting rod, which is characterized in that a screw rod is driven by a motor to rotate and is sequentially and directly engaged with screw threads at the lower part of the inner side of each lifting section rod so that each lifting section rod can move up and down section by section. In the electric spiral lifting rod, n circular lifting section rods are arranged on a base of the electric spiral lifting rod and are sleeved together in sequence from the large diameter to the small diameter, wherein n=3-n, and n is greater than 3; and the upper parts and the lower parts of the inner sides of the n circular lifting section rods are respectively provided with a section of screw threads, the upper parts are provided with left-hand screw threads, the lower screw threads ordinarily lean against the threadless part of the screw rod, and the lower parts of the lower screw threads are respectively provided with a fastening screw cap which can move up and down along each lifting section rod and can rotate along the axes of the fastening screw cap. When all lifting section rods are sequentially lifted in places section by section, every adjacent lifting section rods are mutually engaged and connected through the left-hand screw threads at the outer side of the fastening screw cap of each lifting section rod and the left-hand screw threads at the upper parts of the inner side of the adjacent lifting section rods, the connection strength among the electric spiral lifting rods is high, and the reliability is good. The electric spiral lifting rod is used for producing superhigh erection type facilities and lifting weight products and can benefit the great reduction of the production cost because of the concise structure of the electric spiral lifting rod per se.

Description

technical field

[0001] The invention relates to an electric spiral lifting rod, in particular, it is a lifting rod in which a motor drives a screw rod to rotate and sequentially directly drives n circular lifting joint rods to move up and down. Background technique

[0002] At present, the structural design of the lifting joints used for erecting various facilities and lifting weights is complex, and cannot meet the requirements of various environments for its products, and there are some shortcomings.

[0003] 1. There are limitations on the lifting height and lifting weight.

[0004] 2. When the lift is in place, it will gradually slide down, resulting in a poor long-term maintenance state.

[0005] 3. The complex structure brings bulky appearance and increased failure rate.

[0006] 4. Due to the complex structure, processing is difficult and the manufacturing cost is increased. Contents of the invention

[0007] The object of the present invention is to improve the ...

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