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Undetachable tube connector and method of preventing detachment of tube connector

A pipe joint and body technology, applied in the field of pipe joints, can solve the problems of refrigerant leakage, non-disassembly, and expansion of the use range of flammable refrigerants, and achieve the effects of easy installation, convenient processing, and simple structure

Active Publication Date: 2015-03-11
GREE ELECTRIC APPLIANCES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The first technical problem to be solved by the present invention is to provide a non-detachable pipe joint, so as to avoid the leakage of refrigerant caused by the detachment of the existing pipe joint and union nut, and expand the use range of flammable refrigerants
[0006] The second technical problem to be solved by the present invention is to provide a method for preventing disassembly of pipe joints, so as to improve the problem of refrigerant leakage caused by detachable connection between existing pipe joints and union nuts, and expand the use range of flammable refrigerants

Method used

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  • Undetachable tube connector and method of preventing detachment of tube connector
  • Undetachable tube connector and method of preventing detachment of tube connector
  • Undetachable tube connector and method of preventing detachment of tube connector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] see Figure 1 to Figure 3 , the non-detachable pipe joint in this embodiment includes a pipe joint body 1 independent of each other and a rotating part 2 for tool rotation, the first end 11 and the second end 12 of the pipe joint body 1 are respectively provided with first external threads 13 and the second external thread 14. The first external thread 13 is used to connect with the union nut 3, and the second external thread 14 is used to connect with the rotating part 2, so that the rotating part 2 remains on the pipe joint body 1, and prevents the rotating part 2 from breaking away from the pipe joint body 1 when it vibrates. ring. Preferably, the pitch of the second external thread 14 is greater than the pitch of the first external thread 13, the lead angle of the second external thread 14 is greater than the lead angle of the first external thread 13, and the rotating part 2 The withdrawal stroke is greater than the withdrawal stroke of the union nut 3 threadedly...

Embodiment 2

[0034] see Figure 4 and Figure 5 The difference between this embodiment and Embodiment 1 is that: the active part is two notches 22 arranged obliquely at one end of the rotating part 2, and the driven part is arranged on the outer wall of the middle part of the pipe joint body 1 Two positioning posts 17 extending outward.

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Abstract

The invention discloses an undetachable tube connector which comprises a tube connector body and a rotating component for rotation of a tool. First outer threads are arranged at a first end of the tube connector body. The rotating component and the tube connector body are two independent parts. A driving part and a driven part which are matched with each other are respectively arranged on the rotating component and the tube connector body. When tightening torque is applied on the rotating component, the driving part can be combined with the driven part, and the rotating component drives the tube connector body to synchronously rotate through interactive functions of the driving part and the driven part. When unscrewing torque is applied on the rotating component, the driving part and the driven part are separated. The undetachable tube connector ensures non-looseness of the tube connector and a tube connecting nut, avoids the problem of refrigerant leakage caused by detachability of a present tube connector and a tube connecting nut, and expands the utilization range of flammable refrigerants. Meanwhile, the undetachable tube connector has the advantages of being easy to install, simple in structure and convenient to machine. Meanwhile, the invention discloses a method of preventing detachment of the tube connector.

Description

technical field [0001] The invention relates to a pipe joint, in particular to a non-detachable pipe joint and a method for preventing disassembly of the pipe joint. Background technique [0002] At present, pipe joints and union nuts are used to connect the evaporator and the connecting pipe inside the room of the split-type air conditioner with common working fluid. However, detachable joints are not allowed on the indoor side of air conditioners that use flammable refrigerants. In the existing design, the split unit is directly welded with the indoor evaporator and connecting pipes, and the outdoor side uses quick connectors. Although It can meet the requirements of standards and security, but there are several problems: [0003] 1. The cost of quick connector components is high, so that the cost advantage of the product is not obvious. [0004] 2. After-sales installation is limited by the connecting pipe, and the scope of use of the product is further reduced. Conte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L13/00F16L15/08
Inventor 肖庆韩鹏谢娟王武刚
Owner GREE ELECTRIC APPLIANCES INC
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