Quick connection device for helicopter airspeed testing

A quick connection, helicopter technology, applied in the direction of measuring devices, speed/acceleration/shock measurement equipment testing/calibration, speed/acceleration/shock measurement, etc., can solve the inconvenience of carrying rubber tubes, time-consuming and labor-intensive inconvenience, tightness Improve the sealing performance, improve the efficiency, and shorten the calibration time

Active Publication Date: 2018-05-29
CHINA HELICOPTER RES & DEV INST
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

For the above method, there are obvious deficiencies. One, the cylindrical rubber tube is added with clamps, and only the wall is sealed. It is time-consuming and labor-intensive. In addition, for pitot tubes with different diameters, the rubber tube is inconvenient to carry

Method used

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  • Quick connection device for helicopter airspeed testing
  • Quick connection device for helicopter airspeed testing

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Embodiment Construction

[0015] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be described in more detail below in conjunction with the drawings in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of the invention. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention. Embodiments of the present invention will be described in detail below ...

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Abstract

The invention provides a quick connection device for helicopter airspeed testing and belongs to the helicopter airspeed measurement technical field. A quick fixing assembly includes an inner cylinder(1), an outer cylinder (2), a first step (3), a second step (4), a third step (5), a spring (6), steel balls (7) and through holes (8). A dual-sealing assembly includes a first tapered wall (9) and afirst annular groove (10). According to the quick connection device of the invention, a stepped inclined wall surface is adopted for a plurality of kinds of airspeed tubes with different diameters; fixation is realized by means of the shrinkage of the balls; and therefore, the airspeed tubes with different diameters can be quickly fixed, and a dual-sealing effect is realized.

Description

technical field [0001] The invention belongs to the technical field of helicopter airspeed on-site measurement, in particular to a quick connection device for helicopter airspeed testing. Background technique [0002] The pitot tube is also called the Pitot tube, the total pressure tube, and the total-static pressure tube. It is a device that senses the total pressure (also known as total pressure) and static pressure of the airflow, and transmits the measured pressure data to the air data computer and flight instrument. Pitot, an aviation device, is mainly used to measure flight speed, but also has many other functions. [0003] In actual work, the method adopted is to make cylindrical rubber tubes with different diameters for different diameter pitot tubes, and add clamps to seal and fix the wall. For the above method, there are obvious deficiencies. One, the cylindrical rubber tube is added with a clamp, only the wall is sealed, not only the sealing is not good, but als...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P21/02
CPCG01P21/025
Inventor 张文锋高彩虹朱凡王慧宏刘兴华
Owner CHINA HELICOPTER RES & DEV INST
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