Fast connecting flange

A technology for connecting flanges and sealing rings. It is used in flange connections, pipes/pipe joints/fittings, and passing components. It can solve the problems of easy compression deformation, small tightening contact surface, leakage of the original flat retaining ring, etc. Simple application, good connection strength

Inactive Publication Date: 2006-07-12
叶成玉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has the following shortcomings and deficiencies: the fastening contact surface is small, so that the connection strength cannot reach the best state
The limit post in the original design of the sealing ring is easy to be compressed and deformed due to uneven pressure, and the original flat retaining ring connecting the flange to the valve is prone to leakage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Such as figure 1 , 2 , 3, the present invention includes a wedge-shaped flange 2, the flange 2 is provided with fastening bolts 1, the flange 2 is provided with a sealing ring 6, and the sealing ring 6 is respectively provided with a flat washer 5, Cylindrical pressure retaining rings 8 are arranged outside the flat washers 5, and the flat washers 5 are respectively in contact with the locking wedge iron 4, and the flat washers 5 are in contact with the flange plate 2. When connecting to high-pressure flange pipes, the sealing A limiting cylinder 7 may be provided in the ring 6 .

[0026] When in use, the present invention is placed at the pipe material 3, and then tightened step by step with the fastening bolt 1, so that the applied force of the locking wedge iron 4, the flat washer 5, and the limit cylinder 7 reaches the set compression of the sealing ring 6 After standardization, the fastening bolt 1 is gradually tightened, so that the above-mentioned pressure is a...

Embodiment 2

[0028] Such as Figure 4 , 6 As shown, the flat washer 5 is provided with a pressure retaining ring 8 in the shape of a boss with a stop to ensure the connection between the present invention and various valves, and the others are the same as in Embodiment 1.

Embodiment 3

[0030] Such as Figure 7 As shown, a cylindrical pressure retaining ring 8 can be provided outside the flat washer 5, and the others are the same as in Embodiment 1.

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Abstract

A quickly connected flange is composed of flange, the sealing ring with internal limiting barrel and external pressure baffle ring, and flat washer. Its advantages are high connection strength and simple structure.

Description

technical field [0001] The present invention relates to the technical field of flanges, especially to improve the traditional flange connection structure, aiming at the welding method of high, medium and low pressure flanges and the traditional flange pipe welding method of the past dynasties or the screw connection of the inner diameter of low and medium pressure flanges. A quick-connect flange that further improves the structure of the pipe connection method. Background technique [0002] On September 7, 1995, the applicant applied for an invention patent named "No thread, no welding flange" and the application number is "95111974.5". , limit device, sealing ring, two flanges are butted, and the bolts are gradually tightened to achieve the hard contact connection method of the welding process. It has the following disadvantages and shortcomings: the fastening contact surface is small, so that the connection strength cannot reach the best state. The limit post in the orig...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L23/16
Inventor 叶成玉
Owner 叶成玉
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