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A bellows with socket self-locking function

A corrugated pipe and self-locking technology, applied in the direction of pipes/pipe joints/fittings, pipe connection layout, mechanical equipment, etc., can solve the problems of inability to disassemble and restore, low connection efficiency, etc., to achieve fast installation, improve sealing, and maintain reliability Detachable effect

Active Publication Date: 2021-04-06
ANHUI GAS BELLOWS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The plastic corrugated pipes used for sink drainage are mostly soft structures, and the ends are straight tubes with smooth walls. They are usually connected by flare welding. The connection efficiency is low, and they cannot be disassembled and restored.

Method used

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  • A bellows with socket self-locking function
  • A bellows with socket self-locking function
  • A bellows with socket self-locking function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Such as Figure 1-5 As shown, a bellows with socket self-locking function includes a bellows main body, the two ends of the bellows main body are respectively provided with a sleeve joint 1 and a plug joint 2, wherein the plug joint 2 is also provided with a sleeve 3, Kit 3 is threadedly matched with sleeve joint 1;

[0031] The sleeve joint 1 is provided with a self-locking mechanism, the self-locking mechanism includes a self-locking ring 4, the self-locking ring 4 is located in the annular cavity on the pipe wall of the sleeve joint 1, and the pipe wall of the sleeve joint 1 outside the annular cavity faces outward The bulge forms a circle of annular protrusions 5 with an arched cross section;

[0032] The cross-section of the self-locking ring 4 is elliptical, and is composed of a rectangular main body in cross-section, an inner ring with a semicircular cross-section and an outer ring with a semi-circular cross-section; Upper self-locking ring 4-1 and lower self-l...

Embodiment 2

[0042] Refer to attached Image 6 , the present invention further optimizes the self-locking ring 4, a spring 4-3 is set between the ends of the upper self-locking ring 4-1 and the lower self-locking ring 4-2, and the upper self-locking ring 4-1 and The ends of the lower self-locking ring 4-2 are provided with blind holes cooperating with the spring 4-3, and the two ends of the spring 4-3 are respectively arranged in the blind holes of the upper self-locking ring 4-1 and the lower self-locking ring 4-2 Middle; when the plug joint 2 is pulled out, the spring 4-3 can lift up the two parts of the self-locking ring 4 to reset the self-locking ring 4.

[0043] As mentioned above, the spring 4-3 can be fixedly connected with the upper self-locking ring 4-1 and the lower self-locking ring 4-2.

[0044] As mentioned above, the blind holes are opened in the main parts of the upper self-locking ring 4-1 and the lower self-locking ring 4-2, so that the force on the self-locking ring 4 i...

Embodiment 3

[0046] Such as Figure 7 As shown, since the self-locking ring 4 partially protrudes from the inner wall of the sleeve joint 1 before it is connected, in order to avoid the conflict between the plug joint 2 and the self-locking ring 4, which will cause the plug joint 2 to be unable to be inserted into place, the outer end surface of the plug joint 2 A rounded corner 21 is provided on the outer edge. When the end face of the plug joint 2 contacts the self-locking ring 4, the arc transition of the chamfer passes smoothly.

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PUM

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Abstract

The invention relates to a corrugated pipe with socket self-locking function. The bellows with socket self-locking function includes a bellows main body. The two ends of the bellows main body are respectively provided with sleeve joints and plug joints. There is also a kit on the joint, which is threadedly matched with the sleeve joint; a self-locking mechanism is provided on the sleeve joint, and the self-locking mechanism includes a self-locking ring, which is located in an annular cavity on the pipe wall of the sleeve joint, and the annular cavity The pipe wall of the outer sleeve joint bulges outward to form a circle of circular protrusions with an arched cross section; the outer surface of the plug joint is provided with a circle of self-locking grooves with a U-shaped cross-section that cooperate with the self-locking ring; the left end of the kit is provided There is an inner tapered surface set on the side facing away from the plug joint; the bellows of the present invention are connected by plugging, and the joint is locked by a kit with a self-locking ring. The installation is quick, and it can be disassembled and restored. It is worthy of vigorous promotion.

Description

technical field [0001] The invention belongs to the technical field of corrugated pipes, and in particular relates to a corrugated pipe with a socket self-locking function. Background technique [0002] PE corrugated pipe, that is, a plastic protective sleeve extruded from polyethylene material, is also called corrugated pipe because the inside and outside are ring-shaped corrugated. Play the role of protecting the cable from damage. Good wear resistance, corrosion resistance and other characteristics. Because the PE material is more corrosion-resistant, wear-resistant and aging-resistant, and environmentally friendly, PE bellows are also commonly used as rainwater and sewage branch pipes. The plastic corrugated pipes used for sink drainage are mostly soft structures, and the ends are straight tubes with smooth walls. They are usually connected by flare welding. The connection efficiency is low, and they cannot be disassembled and restored. Contents of the invention [...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L47/04
CPCF16L47/04
Inventor 王建华王征
Owner ANHUI GAS BELLOWS