CN101893140B - Fluid pipeline adapter substitute - Google Patents

Abstract

The invention provides a novel fluid pipeline adapter substitute. The fluid pipeline adapter substitute comprises an adapter substitute nut, an adapter substitute core, and a connecting pipe connected at one end of the adapter substitute core, wherein the other end of the adapter substitute core connected with the connecting pipe is provided with a gasket; the inner ring threads of the adapter substitute nut are provided with an air guide groove; the cross section of the air guide groove is in an inverted V shape; the other end of the adapter substitute core connected with the connecting pipe is also provided with a bell; and the gasket can be embedded into the bell. The pressure can be released from the air guide groove and cannot burst out suddenly and cause safety accidents when the air guide groove of the fluid pipeline adapter substitute is disassembled from the adapter substitute. The adapter substitute core transforms vibration force to a stainless steel core by using a form of a high-quality stainless steel material and a red copper sealing gasket, so that the problem that pipelines are broken due to vibration is solved. The copper gasket for sealing is embedded into the adapter substitute core, has the same conical surface as the adapter substitute core, is embedded into the groove and is not easy to drop out. In addition, the red copper gasket is softer than the stainless steel material and is matched with the stainless steel material for making sealing easier.

Description

A fluid pipeline conversion joint

technical field

The present invention relates to fluid line conversion joints.

Background technique

Fluid is generally carried out through pipelines during the transmission process. In some complex pipeline systems, some joints are generally required to be installed on the transmission pipeline system to facilitate the connection between pipelines. The joint includes a joint nut, a joint core, a copper tube welded to one end of the joint core and a copper gasket at the other end. In the actual use process, the joint core is made of thin-walled copper material, which is often broken due to the vibration of the machine and the pipeline. At the same time, when the joint is disassembled, it will suddenly fly out due to the pressure in the pipe that cannot be discharged in time, which will cause a safety accident.

Contents of the invention

The purpose of the present invention is to solve the above problems and provide a new type of fluid pipeline conversion joint with simple structure, convenient installation, good sealing and practical performance, and safety.

The technical solution adopted by the present invention to achieve the above-mentioned purpose is to include a conversion joint nut, a joint core, and a connecting pipe connected to one end of the joint core. The joint core is provided with a gasket at the other end of the connecting pipe. There is an air guide groove on the thread, and the air guide groove is a groove uniformly distributed along the inner thread of the joint nut. The cross section of the air guide groove is an inverted "V" shape; the joint core is connected The other end of the connecting pipe is also provided with a tapered mouth, and the lower part of the tapered mouth is provided with a slot, and the gasket can be inserted into the tapered mouth and snapped into the slot.

While adopting the above-mentioned technical solutions, the present invention can also adopt or adopt the following technical solutions in combination:

The outlet end of the connecting pipe is inserted into the joint nut and has an outer end protruding from the joint nut, and the outer end is enlarged.

The connecting pipe is a copper pipe, and the gasket is a copper gasket.

Due to the adoption of the technical solution of the present invention, the pressure of the air guide groove of the fluid pipeline conversion joint of the present invention will be released from the air guide groove when the joint is disassembled, and will not suddenly fly out to cause a safety accident; the joint core is made of high-quality stainless steel The form of material plus copper sealing gasket transfers the vibration force to the stainless steel core, which solves the problem of pipeline fracture due to vibration. The copper gasket for sealing is embedded in the joint core, which is the same as the taper surface of the joint core and embedded in the groove. It is not easy to fall out, and the copper gasket is softer than stainless steel, and the combination of the two is more conducive to sealing. Moreover, the connection operation between the joint nut and the pipeline of the present invention is convenient.

Description of drawings

Fig. 1 is a cross-sectional view of an embodiment provided by the present invention.

Fig. 2 is a top view of the embodiment provided by the present invention.

Detailed ways

With reference to accompanying drawing 1,2.

This embodiment includes a joint nut 1, a joint core 2, and a connecting pipe 3 connected to one end of the joint core 2. The joint core 2 is provided with a gasket 4 at the other end connected to the connecting pipe 3. The inner ring of the joint nut 1 The thread 11 is provided with an air guide groove 12, and the connecting pipe 3 and the gasket 4 are respectively provided at both ends of the joint core 2.

The joint core 2 is also provided with a tapered mouth 21 at the other end connected to the connecting pipe 3, and the lower part of the tapered mouth 21 is provided with a card slot 22, and the gasket 4 can be inserted into the tapered mouth 21 , and snapped into the card slot 22.

The number of the air guide grooves 12 is four, and they are uniformly distributed along the inner thread 11 of the joint nut 1 in the circumferential direction, and the cross section of the air guide grooves 12 is inverted "V" shape. The "V"-shaped air guide groove can relieve the pressure in the pipe when the joint is disassembled, and prevent the joint from being crushed by the pipe and causing safety accidents.

The outlet end of the connecting pipe 3 is inserted into the joint nut 1 and has an outer end 32 protruding from the joint nut 1. The outer end 32 can be enlarged after passing through the joint nut 1. End 32 may be enlarged.

The connecting pipe 3 is a copper pipe, and the gasket 4 is a copper gasket. The copper gasket is embedded in the joint core and the conical surface of the joint core is embedded in the groove, so it is not easy to fall out, and the copper gasket is softer than stainless steel, and the combination of the two is more conducive to sealing.

The joint nut 1 can be directly connected with the external pipeline through thread fit, and the operation is convenient.

Claims (3)

1. fluid pipeline adapter substitute; Comprise crossover sub nut, joint core, be connected the adapter of joint core one end; It is characterized in that: said joint core is provided with pad at the other end that connects adapter; The inner ring screw thread of said Female connector fittings is provided with gas guide groove, the groove that said gas guide groove is uniformly distributed with for the inner ring screw thread along said Female connector fittings, and the cross section of said gas guide groove is down " V " type; Said joint core also is provided with taper mouth at the other end that connects adapter, and said taper mouth bottom is provided with draw-in groove, and said pad can embed in the said taper mouth, and is connected in the said draw-in groove.

2. a kind of fluid pipeline adapter substitute as claimed in claim 2 is characterized in that: the outlet end of said adapter is inserted in said Female connector fittings and has the outer end of stretching out said Female connector fittings, and said outer end is enlarged.

3. according to claim 1 or claim 2 a kind of fluid pipeline adapter substitute, it is characterized in that: said adapter is a copper pipe, said pad is the red copper pad.

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