Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Universal joint

A general-purpose joint and bolt technology, applied in the direction of pipe/pipe joint/pipe fitting, passing element, sealing surface connection, etc., can solve the problems of poor sealing performance, achieve good sealing performance, ideal structural design, and convenient disassembly and assembly.

Inactive Publication Date: 2013-12-25
NINGXIA BAOTA PETROCHEM SCI & TECH IND DEV
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention aims at the problem of poor sealing of the pipeline joints used in the chromatograph, and invents a new type of universal joint

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Universal joint
  • Universal joint
  • Universal joint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The present invention is used for the connection of gas chromatography gas pipelines:

[0022] The thick plastic tube (7) led from the gas cylinder is put on one end of the smooth tube of the bolt (1), and then the sealing ferrule (a) is put on the plastic pipe (7), so that the sealing ferrule (a) is stuck on the screw thread in the curved groove on the end, then tighten the jam nut (A).

[0023] Put the gas chromatographic gas source inlet plastic pipe joint (8) on the support tube (4), then penetrate the sealing ferrule (b), and insert the threaded end of the bolt (1), so that the sealing ferrule is stuck on the bolt (1 ) in the tapered groove, tighten with the lock nut (B), and the connection between the thick tube and the thin tube is completed.

[0024] The joint can withstand 2.5MPa pressure during use without loosening and shifting.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a universal joint for pipelines. The joint disclosed by the invention comprises a joint bolt (1), nonmetallic seal snapping sleeves (a and b), lock nuts (A and B) and a supporting tube (4), wherein the joint bolt (1) is a hollow bolt, the two ends of the joint bolt are different in outside diameter and are provided with external threads, the portion before a coarse threaded end is of a smooth stainless-steel tube section, an arc-shaped groove is formed in the end part of the coarse threaded end, and a conical groove is formed in the end part of a fine threaded end; the seal snapping sleeves (a and b) are made of nylon materials. The universal joint disclosed by the invention is applicable to the connection between any two pipelines of different outside diameter sizes.

Description

technical field [0001] The invention relates to the field of analysis and detection equipment, in particular to a joint for connecting a chromatograph and a gas pipeline. Background technique [0002] Connectors are a common accessory in chromatographic instruments. When using gas chromatography for analysis, it is often necessary to select different chromatograms according to the type and performance of the sample. Therefore, the joints connected to the chromatogram are parts that need to be assembled and disassembled repeatedly. At the same time, in order to achieve good analysis results, good sealing performance of the joints is required, and the volume of the joints is small. The traditional connection is just a pull-out ferrule, the sealing effect is not good, it is easy to be damaged, and it will cause serious damage to the trachea. Contents of the invention [0003] The invention aims at the problem of poor sealing performance of the pipe joint used in the chromato...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16L19/02
Inventor 孙永良邹启榆马丽慧杨晓丽
Owner NINGXIA BAOTA PETROCHEM SCI & TECH IND DEV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com