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A union nut, a connecting pipe assembly and an air conditioner

A technology of taking over nut and connecting pipe, which is applied in the direction of threaded connection, connecting member, pipe/pipe joint/pipe fitting, etc., can solve the problems of high production cost and complicated structure of the taking-over nut.

Active Publication Date: 2020-08-11
HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Embodiments of the present invention provide a union nut, a connecting pipe assembly, and an air conditioner, which can solve the problems of complex structure and high production cost of the anti-disassembly union nut in the prior art

Method used

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  • A union nut, a connecting pipe assembly and an air conditioner
  • A union nut, a connecting pipe assembly and an air conditioner
  • A union nut, a connecting pipe assembly and an air conditioner

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Embodiment Construction

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0037] Such as figure 1 As shown, when the air-conditioning indoor unit in the prior art is delivered from the factory, it is generally necessary to install an inflation connection nut 01 and an early warning connection nut 02 on the pipe joint part of the evaporator, and gas (generally nitrogen) can be charged after the evaporator is produced. Keep the pressure until the air-conditioning indoor unit is transported to the user's home for installation and conne...

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Abstract

The embodiment of the invention provides a pipe connecting nut, a connecting pipe assembly and an air conditioner, and relates to the technical field of air conditioners. The problems that an anti-detaching pipe connecting nut in the prior art is complex in structure and high in production cost can be solved. The pipe connecting nut comprises a nut body and a rotation part. The opposite end facesof the nut body and the rotation part are provided with wedge-shaped teeth and wedge-shaped grooves, wherein the wedge-shaped teeth and the wedge-shaped grooves are in matched connection. When screwing torque is applied to the rotation part, the rotation part can transmit torque to the nut body through the abutting faces of the wedge-shaped teeth and the wedge-shaped grooves. When unscrewing torque is applied to the rotation part, the wedge-shaped teeth can slide out of the wedge-shaped grooves, and the nut body and the rotation part are separated. The abutting faces of the wedge-shaped teethare provided with first clamping and connecting structures, the abutting faces of the wedge-shaped grooves are provided with second clamping and connecting structures, and the first clamping and connecting structures can be clamped and connected in the second clamping and connecting structures. When unscrewing torque is applied to the rotation part, the first clamping and connecting structures candisengage from the second clamping and connecting structures. The pipe connecting nut can be used for air conditioner pipeline connection.

Description

technical field [0001] The invention relates to the technical field of air conditioners, in particular to a connection nut, a connecting pipe assembly and an air conditioner. Background technique [0002] In the EN60335-2-40 standard of the air-conditioning industry, it is required that the indoor side of the air conditioner using flammable refrigerants is not allowed to use a detachable connection structure, because if the connection between the pipe joint and the union nut is loose, the refrigerant will leak into the room, resulting in safety accidents. Although there are some anti-disassembly union nuts in the prior art, most of them have complex structures and consume more materials, which leads to complicated processing techniques and high production costs. Contents of the invention [0003] Embodiments of the present invention provide a connection nut, a connecting pipe assembly and an air conditioner, which can solve the problems of complex structure and high produ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L15/00F16B37/00F16B39/282F16L19/00
CPCF16B37/00F16B39/282F16L19/005
Inventor 张晋
Owner HISENSE (SHANDONG) AIR CONDITIONING CO LTD
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