Adjustable steel bar thread connection device

Abstract

The invention discloses an adjustable steel bar threaded connection device, which comprises a first threaded sleeve, a second threaded sleeve and a joint; internal thread; the inner wall of the second threaded sleeve is provided with an internal thread for threaded connection with the end of the second steel bar, and the outer wall is provided with an external thread; the joint is a cavity with a cylindrical cavity at one end, and the cavity The bottom is provided with a hole with a diameter slightly larger than the outer diameter of the first steel bar, the inner diameter of the cavity is greater than or equal to the outer diameter of the first threaded sleeve, and the inner wall of the cavity near the outlet is provided with an outer wall thread for connecting with the second threaded sleeve. Connected internal thread. The adjustable steel bar threaded connection device of the present invention realizes the mechanical connection of two steel bars through the nested connection between the first threaded sleeve, the second threaded sleeve and the joint. The invention requires fewer parts, is simple to operate, and has strong replaceability, greatly reducing construction difficulty.

Description

technical field [0001] The invention relates to the technical field of construction engineering, in particular to an adjustable steel bar thread connection device. Background technique [0002] In the field of construction engineering, it is often necessary to connect steel bars to form a certain structure. During the on-site construction, there will be a situation where the two steel bars to be connected cannot be rotated, and due to the blanking of the steel bars and construction errors, a gap is formed at the ends of the two steel bars to be connected, and they cannot be gathered together. In addition, the axes of the two steel bars to be connected are usually not on the same straight line. In this case, the use of straight thread sleeves such as standard type, positive and negative type, and extended wire head type cannot achieve effective connection, that is, the sleeve connection cannot be guaranteed. The effective thread length at the time, or the end faces of the tw...

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Problems solved by technology

[0007] In view of the above-mentioned defects in the prior art, the problem to be solved by the present invention is to realize equal-strength connection of two steel bars when the two steel bars to be connected cannot be rotated or folded together.

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