Train door lock used inner triangular tube

A triangular tube and door lock technology, applied in the field of special-shaped tubes, to achieve the effects of good wear resistance, high precision and high strength

Inactive Publication Date: 2012-10-03
JIANGSU HUACHENG IND PIPES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Because the circular cross-section steel pipe is more uniform in bearing internal or external radial pressure, it is widely used, but in many cases, the circular cross-section steel pipe cannot meet the specific use requirements of structural components or mechanical components, so special special-shaped steel pipes are required. Steel pipes are used to manufacture structural parts or mechanical parts to achieve the purpose of improving material utilization, simplifying production processes, and shortening production cycles.

Method used

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  • Train door lock used inner triangular tube

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Embodiment Construction

[0011] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0012] see figure 1 , an inner triangular tube 1 for a train door lock, the section of the inner triangular tube for the train door lock is a special-shaped structure, and the outer wall 10 of the inner triangular tube for the train door lock is circularly arranged, and the inner triangular tube for the train door lock is circular. The inner wall 11 of the inner triangular tube 1 is arranged in a triangular shape. The inner wall 11 of the inner triangular tube 1 for the train door lock is arranged in an equilateral triangle shape. The center of the inner wall 11 coincides with the center of the outer wall 10 .

[0013] The inner triangular tube used in the train d...

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Abstract

The invention discloses a train door lock used inner triangular tube, whose section is provided with a special-shaped structure, wherein the outer wall of the train door lock used inner triangular tube is round, and the inner wall of the train door lock used inner triangular tube is triangular. The train door lock used inner triangular tube provided by the invention has the advantages of high intensity, long service life, good abrasive resistance and high precision, can well utilize the special-shaped structure of the inner wall of the tube body to be adaptive to a lock head, so as to achieve the purpose of unlocking.

Description

technical field [0001] The invention relates to a special-shaped tube, in particular to an inner triangle tube for train door locks. Background technique [0002] The production of seamless steel pipes is one of the pillar industries of the country. With the development of the national economy, the demand for seamless steel pipes is increasing year by year. Seamless steel pipes are used to manufacture structural components such as automobiles, trains, airplanes, ships, and space launchers, as well as mechanical parts such as agriculture, mining, engineering, electrical engineering, textiles, and military industries. Seamless steel pipes are used in both civil and military fields. are very broad. Because the circular cross-section steel pipe is more uniform in bearing internal or external radial pressure, it is widely used, but in many cases, the circular cross-section steel pipe cannot meet the specific use requirements of structural components or mechanical components, so ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16S3/00E05B15/00E05B65/12E05B85/00
Inventor 韩波
Owner JIANGSU HUACHENG IND PIPES
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