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Cabin door bolt stroke sensitivity improving mechanism

A sensitivity and door technology, applied in aircraft parts, aircraft accessories, aircraft indicating devices, etc., can solve problems such as low sensitivity of aircraft door status detection

Pending Publication Date: 2021-04-20
中航通飞华南飞机工业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a mechanism for increasing the sensitivity of the stroke of the door latch to solve the problem of low detection sensitivity of the state of the existing aircraft door

Method used

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  • Cabin door bolt stroke sensitivity improving mechanism
  • Cabin door bolt stroke sensitivity improving mechanism

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Embodiment Construction

[0025] The specific embodiment of the suspension structure of the rudder surface of the seaplane provided by the present invention is now described in conjunction with the accompanying drawings.

[0026] figure 1 Schematic diagram of the structure of the hatch latch stroke sensitivity raising mechanism provided by the present invention when the hatch is opened; figure 2 Schematic diagram of the structure of the hatch latch stroke sensitivity raising mechanism provided by the present invention when the hatch is closed; please also refer to figure 1 , figure 2 , the present invention provides a bolt stroke sensitivity raising mechanism, which is located on the door frame of the hatch, and includes: shaft 1, rocker arm 2, support 3, spring 4, bushing 5, standard parts and sensors; wherein,

[0027] Shaft 1, rocker arm 2, spring 4, bushing 5, standard parts, and sensors are integrated on support 3. Spring 4 is always in a compressed state and makes rocker arm 2 open, which ach...

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Abstract

The invention provides a cabin door bolt stroke sensitivity improving mechanism. The mechanism comprises a shaft (1), a rocker arm (2), a support (3), a spring (4), a target and a sensor, wherein the support (3) is fixed to a cabin door opening frame, two coaxial holes are formed in the support (3), a first end of the shaft (1) is a cylinder and makes contact with a cabin door bolt, and a second end of the shaft (1) is a double-lug piece; a guide groove is formed in the first end of the rocker arm (2), a bolt bar penetrating through the double lugs slides in the guide groove, a target is arranged at the second end of the rocker arm (2), and the rocker arm (2) is rotationally connected to the support (3); a bolt rod at the second end of the shaft (1) slides in the guide groove to drive the target to be close to or far away from a sensor arranged on the support (3); the spring (4) is arranged on the shaft (1) in a sleeving mode, located between the two coaxial holes and used for driving the shaft (1) to rebound. The mechanism is advantaged in that the weight is light, assembly is simple, and the possibility of mistaken closing of the rocker arm is avoided.

Description

technical field [0001] The invention belongs to the field of cabin door design, and in particular relates to a cabin door latch stroke sensitivity raising mechanism. Background technique [0002] The state of the aircraft door is extremely important for the aircraft pressurization control. [0003] In the prior art, a target is usually set at the bolt of the aircraft door, and a sensor is arranged at the end of the stroke of the bolt to detect the opening and closing of the door. [0004] However, when the stroke of the bolt is short or the stroke of the bolt is large but moves slowly, there is a problem that it is difficult for the sensor to sensitively detect whether the cabin door is opened / closed. Therefore, the existing aircraft door state detection sensitivity is low. Contents of the invention [0005] The object of the present invention is to provide a mechanism for increasing the sensitivity of the stroke of a door bolt, which solves the problem of low detection ...

Claims

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Application Information

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IPC IPC(8): B64C1/14B64D45/00
Inventor 张浩谷刚戴赛丰刘木君佟德喜
Owner 中航通飞华南飞机工业有限公司
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