直管悬挂链

Straight pipe suspension chain

  • Inventors: CHENG DEGANG
  • Assignees: 程德刚
  • Publication Date: October 28, 2009
  • Publication Number: CN-201333909-Y

Abstract

本实用新型公开了一种直管悬挂链,为解决现有技术中冷缩、易脱、易断裂等问题而发明。包括管接和设置在管接两端并分别与其连接的接头,管接为两端分别设置有内螺纹的直管,接头一端设置有与内螺纹相配合的外螺纹。上述的结构,直接在直管端内部加工套丝即可,直管连接处厚度和丝扣长度易控,加工过程简单,不必做变径处理,冷缩变形小或基本一致,避免了因此造成的丝扣精度不高,壁厚不均匀的现象,参照机械标准加工螺纹,公差范围有直接的参照标准,连接件的互换性较好,标准统一易控,可根据拖挂重量选择直管悬挂链的直径,对应有指定的普通60度螺纹,还可根据需要加工成梯形螺纹,明确了使用要求,方便了人们选用。
The utility model discloses a straight pipe suspension chain, which aims at solving the problems of the prior art such as shrinkage, easy dropping and easy fracture, and comprises a pipe joint and connectors which are arranged on both ends of the pipe joint and are connected with the pipe joint, wherein, the pipe joint is of a straight pipe with both ends being provided with an internal thread, and one end of the connector is provided with an outer thread which is matched with the internal thread. With the structure, a threading can be directly processed inside the end of the straight pipe, and the thickness at the straight pipe joint and the length of the screw thread are easy to be controlled, and the processing process is simple and is free from the reducing treatment, and the cold shrinkage is small or basically consistent with each other, thereby preventing the low precision of the threading caused by the cold shrinkage and the non-uniform thickness; the thread is processed referring to the mechanical standard, so that the tolerance range has direct reference standard; the exchangeability of the connection element is good, and the connection element is uniform and is easy to be controlled; the diameter of the straight pipe suspension chain can be selected according to the dragging weight; the straight pipe is provided with the ordinary thread of 60 degrees which can be processed into a trapezoid thread according to the requirements, thereby making clear of the application requirements, and being convenient for people to use.

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