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Airspeed head clamp with warning function

A pitot tube and fixture technology, which is applied in the aviation field, can solve problems such as inconsistent display information, pitot fixture melt damage, etc., and achieve the effects of avoiding melt damage and simplifying the setting of fixed value resistors

Inactive Publication Date: 2020-06-23
COMAC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, unplugging the circuit breaker before the test will cause the actual display information of the aircraft to be inconsistent with expectations; in addition, operating the circuit breaker when unexpected heating occurs during the test, because it is a manual operation, if the operator does not respond in time, the pitot tube will Fixture melting is still unavoidable

Method used

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  • Airspeed head clamp with warning function
  • Airspeed head clamp with warning function
  • Airspeed head clamp with warning function

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Embodiment Construction

[0044] Specific implementations of the present invention will be described below. It should be noted that in the process of specific descriptions of these implementations, for the sake of concise description, it is impossible for this specification to describe all the features of the actual implementations in detail. It should be understood that, in the actual implementation process of any embodiment, just like in the process of any engineering project or design project, in order to achieve the developer's specific goals and to meet system-related or business-related constraints, Often a variety of specific decisions are made, and this can vary from one implementation to another. In addition, it will be appreciated that while such development efforts may be complex and lengthy, the technology disclosed in this disclosure will be Some design, manufacturing or production changes based on the content are just conventional technical means, and should not be interpreted as insuffic...

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Abstract

The invention relates to an airspeed head clamp with a warning function. The airspeed head clamp with the warning function comprises a sleeve, a sealing ring, a thermistor and an alarm. The sleeve isarranged on the outer side of an airspeed head in a sleeving mode. The sealing ring is arranged between the sleeve and the airspeed head, the thermistor is embedded in the sealing ring, and the alarmis connected to the thermistor. When the temperature of the sealing ring is lower than or equal to a temperature threshold value, the resistance value of the thermistor does not exceed a critical value, and the alarm is powered off to be mute. When the temperature of the sealing ring is higher than the temperature threshold value, the resistance value of the thermistor exceeds the critical value,and the alarm is powered on to give out alarm sound. The clamp has the following beneficial technical effects that when the airspeed head is accidentally heated, an alarm sound is sent out in time before melting loss of the airspeed head clamp, and melting loss of the airspeed head clamp and damage and part replacement of the airspeed head are effectively avoided.

Description

technical field [0001] The invention relates to the field of aviation technology, in particular to a pitot clamp with an alarm function. Background technique [0002] A pitot is a device on an aircraft that measures airspeed. The pitot tube can feel the total pressure of the airflow (also known as the total pressure), and transmit the measured pressure data to the air data computer. Combined with the static pressure felt by the static pressure hole, the airspeed of the aircraft can be calculated and sent to relevant users systems and flight instruments. [0003] In the ground test of the aircraft, the pitot tube also needs to be tested. However, during the ground test of the aircraft, the pitot tubes often heated up unexpectedly, causing the connected pitot tube clamps to be melted, and the pitot tubes needed to be replaced. [0004] In the prior art, the damage of the pitot clamp is mainly avoided by manually operating the circuit breaker. However, unplugging the circui...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B21/18G01K7/22
CPCG01K7/22G08B21/18G08B21/185
Inventor 袁文铎刘畅陈建庚陈聪尹家旺陶红玉
Owner COMAC
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