Clamp type wrench for circular nut with tooth groove in airplane pipeline

A technology of aircraft tubes and round nuts, applied in the direction of wrenches, screwdrivers, hand-held tools, etc., can solve the problems of inconvenient operation and uneven force on the teeth, and achieve the effects of easy operation, reduced labor intensity, and prevention of damage

Pending Publication Date: 2020-12-04
AIR FORCE UNIV PLA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to overcome the problems of uneven force on the teeth and inconvenient operation when disassembling and assembling the round nuts with slots in aviation pipelines, the invention provides a clip-type wrench for round nuts with slots in aircraft pipelines

Method used

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  • Clamp type wrench for circular nut with tooth groove in airplane pipeline
  • Clamp type wrench for circular nut with tooth groove in airplane pipeline
  • Clamp type wrench for circular nut with tooth groove in airplane pipeline

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] This embodiment is a clip-type wrench used for round nuts with tooth grooves in aircraft pipelines, including a wrench and a sleeve, and the sleeve is used in conjunction with the wrench. The wrench includes an upper part 1 , a lower part 2 and a connecting piece 3 . The upper connector 6 at one end of the upper part and the lower connector 13 at one end of the lower part are hinged through the connector. The upper clamping end 4 at the other end of the upper part cooperates with the lower clamping end 11 at the other end of the lower part to form a circular clamping head. Described sleeve comprises straight sleeve 16 and right angle sleeve 19, when using this wrench, selects different sleeve for use as required.

[0040] The upper clamping end 4 of the upper part 1 is semi-circular and used for clamping workpieces. Teeth 7 and tooth grooves 8 are distributed on the inner surface of the upper clamping end. The teeth 7 and the tooth grooves 8 are evenly distributed be...

Embodiment 2

[0053] This embodiment is a clip-type wrench used for round nuts with slots in aircraft pipelines, including an upper part 1 , a lower part 2 and a connecting part 3 . The upper connector 6 at one end of the upper part and the lower connector 13 at one end of the lower part are hinged through the connector. The upper clamping end 4 at the other end of the upper part cooperates with the lower clamping end 11 at the other end of the lower part to form a circular clamping head.

[0054] The structural features of this embodiment are close to those of Embodiment 1, the difference being:

[0055] Teeth 7 and tooth grooves 8 are distributed on the inner surface of the upper clamping end 4 of the upper part 1 . The distribution of the teeth and the gullets is the same as the distribution of the teeth and the gullets in the first embodiment. In this embodiment, the circumferential width of the teeth 7 is 1mm smaller than the circumferential width of the round nut with slots, and the...

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Abstract

The invention discloses a clamp type wrench for a circular nut with a tooth groove in an airplane pipeline. The clamp type wrench comprises an upper part, a lower part and a connecting piece. An upperconnector of the upper part is embedded between clamping tooth grooves of a lower connector, and the upper part and the lower part are hinged through the connecting piece. After assembly, the semi-circular upper clamping end on the upper part and the semi-circular lower clamping end on the lower part are combined to form a circular clamping head, and a semi-tooth groove located at the upper clamping end and a semi-tooth groove located at the lower clamping end are combined to form a complete tooth groove. A sleeve comprises a straight sleeve and a right-angle sleeve, and when the wrench is used, different sleeves are selected according to needs. The teeth and the tooth groove correspond to the tooth groove and teeth of the circular nut with the tooth groove respectively. When the circularnut with the tooth groove is coated with sealing glue, the rotating torque required for dismounting is large, the dismounting rotating torque is transmitted to all the teeth of the circular nut withthe tooth groove at the same time, all the teeth are evenly stressed, and damage to the teeth of the circular nut with the tooth groove can be effectively prevented.

Description

technical field [0001] The invention relates to the technical field of aviation maintenance appliances, in particular to a clip-type wrench used for disassembling and assembling a round nut with a tooth groove in an aviation system pipeline. Background technique [0002] The aircraft environmental control system and air source system are important components of the aircraft auxiliary system. The pipelines are long and require high air tightness. In aviation maintenance work, the disassembly and installation of aviation pipelines is one of the regular tasks. Aircraft environmental control systems, air supply system piping and other connecting parts often have narrow spaces, and the operating space is limited during maintenance, which puts forward higher requirements for disassembly tools. [0003] Aircraft environmental control system pipelines and air source system pipelines often use round nuts with tooth grooves as connecting components. The radial outer shape of the rou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B13/50B25B13/58B25B23/00B25B27/14
CPCB25B13/505B25B13/58B25B23/00B25B27/14
Inventor 孟庆贺周鑫王学德安志斌朱键康进兴
Owner AIR FORCE UNIV PLA
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