Rushing prevention type pneumatic fast joint

An anti-retraction and spool technology, which is applied in the direction of sliding valves, engine components, mechanical equipment, etc., can solve the problems of high processing cost, unsatisfactory processing technology, unacceptable by users, etc., and achieve the effect of avoiding damage

Inactive Publication Date: 2012-01-11
庄志军 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, its structure is complex, and the processing technology of the parts is very high, which is difficult to meet with the conventional processing technology. Especially for the three parts of the socket, the position control collar and the movable seat, the processing technology is not ideal, the processing cost is high, and the user Difficult to accept

Method used

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  • Rushing prevention type pneumatic fast joint
  • Rushing prevention type pneumatic fast joint
  • Rushing prevention type pneumatic fast joint

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1: An anti-flush type pneumatic quick-change joint, Figure 1 to Figure 9 As shown, it includes intake socket 1, sealing retaining ring 2, intake sealing ring 3, valve core 4, sliding sleeve spring 5, valve core anti-return ball 6, sliding sheath 7, inner sliding sleeve 8, inner sliding sleeve Sleeve anti-return bead 9, axial limiter 10, air outlet seal ring 11, intermediate seal ring 12, valve core inner spring 13 and valve core outer spring 14, intake joint 1 includes intake seal groove 101, valve core front Guide hole 102, valve core rear guide hole 103, valve core limit hole 104, long waist hole 105, pressure relief groove 106, sliding sleeve spring left shoulder 107, air intake channel 108, outer spring left shoulder 109 and retaining spring Groove 110, wherein, air intake sealing groove 101, spool front guide hole 102, spool rear guide hole 103 and air intake channel 108 are coaxial hole systems, are all arranged in the inner hole of intake joint 1, spo...

Embodiment 2

[0040] Embodiment 2: The anti-extrusion type pneumatic quick-change joint is different from Embodiment 1 in that the axial limiter 10, in this example, the axial limiter 10 is an anti-mis-collision sheath , The anti-mis-collision sheath is fixedly installed on the outer circle of the right end of the air intake adapter 1.

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PUM

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Abstract

The invention relates to a rushing prevention type pneumatic fast joint, which comprises an air inlet connecting sleeve, a sealing baffle ring, an air inlet sealing ring, a valve core, a slide sleeve spring, a valve core anti-contraction bead, a sliding protection sleeve, an inner slide sleeve, an inner slide sleeve anti-contraction bead, an axial position limiting element, an air outlet sealing ring, a middle sealing ring, a valve core inner spring and a valve core outer spring, wherein the valve core is in a closed state before a bleed plug is plugged, the bleed plug pushes the inner slide sleeve and the valve core to simultaneously and leftwards move when the bleed plug is plugged, the valve core is in an open state when an air outlet hole arranged on the valve core exceeds the air inlet sealing ring, the valve core anti-contraction bead is in reliable contact with an opening step when the valve core anti-contraction bead is in contact with the opening step of the valve core, and the valve core is ensured to be in a reliable ventilation state. When the bleed plug needs to be dismounted, the valve core rightwards moves under the effects of the valve core outer spring and the air pressure, the valve core is in the closed state when a closing step is in contact with the valve core anti-contraction bead, the bleed plug only receives the elasticity of the valve core spring when being disconnected, and the reverse rushing force is very small.

Description

Technical field: [0001] The invention relates to a pneumatic quick-change joint widely used for quick connection of gas delivery pipelines. Background technique: [0002] Pneumatic quick-change joints are widely used in various fields as an essential connection part for quick connection of gas pipelines. In Chinese patent CN201152427Y (patent number ZL2008200001837.8), a "safety-type pneumatic quick-change joint is disclosed. The pneumatic quick-change joint of this structure When the ferrule is detached, the change joint can prevent the ferrule from rushing out in the opposite direction and realize the function of preventing rushing out. It is a kind of pneumatic quick-change joint with better anti-rushing performance in the prior art. However, its structure is complicated and the parts The processing technology requirements are very high, and the conventional processing technology is difficult to meet, especially the three parts of the socket, the position control collar a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L37/46F16L37/23F16K3/30
Inventor 庄志军华文明
Owner 庄志军
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