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Hydraulic locking mechanism, opening and closing method and helicopter

A helicopter and hydraulic technology, applied in the field of helicopters, can solve problems such as low reliability and complex structure, and achieve the effects of simple and reliable control, reduced personnel assistance, and simple structure

Pending Publication Date: 2021-02-19
ZHONGHANG ELECTRONICS MEASURING INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to realize the functions of hanging and releasing, the existing locking mechanism needs to increase related structures and components for normal releasing and emergency releasing, which is complicated in structure and not high in reliability.

Method used

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  • Hydraulic locking mechanism, opening and closing method and helicopter
  • Hydraulic locking mechanism, opening and closing method and helicopter
  • Hydraulic locking mechanism, opening and closing method and helicopter

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Embodiment Construction

[0034] The present invention is described in further detail below in conjunction with accompanying drawing:

[0035] like figure 1 Shown is the hydraulic locking mechanism of the present invention, including a bracket 1 and a sling joint 10 .

[0036] The bracket 1 is connected with the helicopter to transmit the cargo load to the helicopter, and forms a closed oil chamber 3 with the casing 4 and the piston cylinder 6. Specifically, the side of the piston cylinder 6 is provided with a first convex plate, and the inner wall of the bracket 1 is provided with a second convex plate , the first raised plate is located above the second raised plate, the outer side above the first raised plate of the piston cylinder 6 , the inner wall above the second raised plate of the bracket 1 and the casing 4 form a sealed oil chamber 3 .

[0037] A hydraulic oil port 2 is provided on the side of the casing 4 for hydraulic oil to enter and exit, and a vent hole 5 is provided on the central boss...

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PUM

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Abstract

The invention discloses a hydraulic locking mechanism, an opening and closing method and a helicopter. The hydraulic locking mechanism comprises a support and a sling connector; a piston cylinder is slidably connected into the support, a first protruding plate is arranged on the side face of the piston cylinder, a second protruding plate is arranged on the inner wall of the support, the first protruding plate is located above the second protruding plate, a sealed oil cavity is formed by the outer side, above the first protruding plate, of the piston cylinder and the inner wall, above the second protruding plate, of the support, and the oil cavity communicates with a hydraulic valve; two lock catches are hinged to the interior of the support and both located in the piston cylinder, protruding blocks are arranged on the opposite faces of the two lock catches, the sling connector is located between the two lock catches, and a boss is arranged at the top of the sling connector; when the piston cylinder is located at the bottom of the support and the two lock catches make contact with the lower end of the piston cylinder, the distance between the two protruding blocks is smaller than the diameter of the boss; and when the piston cylinder is located at the top of the support and the two lock catches make contact with the lower end of the piston cylinder, the distance between the twoprotruding blocks is larger than the diameter of the boss. The structure is simple, the failure rate is low, and the opening-closing process is reliable.

Description

technical field [0001] The invention belongs to the field of helicopter external hanging transportation, and relates to a hydraulic locking mechanism, an opening and closing method and a helicopter. Background technique [0002] Before the helicopter lifts the cargo, it needs to mount the cargo to the locking mechanism on the abdomen of the helicopter through the sling, and reliably lock and effectively release the sling joint through the locking mechanism to realize the hoisting and release of the cargo . However, in order to realize the functions of hanging and releasing, the existing locking mechanism needs to increase relevant structures and parts for normal releasing and emergency releasing, which is complicated in structure and not high in reliability. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned shortcoming of prior art, provide a kind of hydraulic locking mechanism, opening and closing method and helico...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66C1/12B64D1/12
CPCB66C1/12B64D1/12
Inventor 雍利鹏钱万涛薛振华罗杰陈恒达
Owner ZHONGHANG ELECTRONICS MEASURING INSTR
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