CN2643129Y

CN2643129Y - A fast connecting pipe joint

Info

Publication number: CN2643129Y
Application number: CN 03250278
Authority: CN
Inventors: 秦兴田
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-09-05
Filing date: 2003-09-05
Publication date: 2004-09-22
Anticipated expiration: 2013-09-05

Abstract

A quick connecting tube joint applied for pipeline connection comprises a joint body and a lock bolt sleeve. The leading section of the lock bolt sleeve inner cavity is comminuted with external wall of the head of the joint body in the way of a sliding matching. The external wall of the head of the joint body is covered by a pressure spring with the front head sustaining the front surface of the lock bolt sleeve back cavity and the posterior head pressing the posterior table top of external wall of the head of the joint body. An E ring is arranged in the external wall in the joint body. The posterior table top of the joint body head is provided with a groove retainer and a backing groove. A spring retainer is arranged in the groove retainer or the backing groove. At least one annular groove communicated with a joint washer is arranged on a protruding table of the joint body head. At least three micropyles are evenly arranged along the radial direction on the surrounding wall of the joint body head. Each micro Pyle is provided with a blocking bead. External surface of the blocking bead is pressed firmly by the inner cavity of the lock bolt sleeve head. Pipeline connection is realized only by pushing the lock bolt sleeve, which is not only convenient and fast, but also time and energy saving.

Description

A kind of quick Connector coupling

(1) technical field:

The utility model relates to a kind of pipeline linkage structure, particularly a kind of pipe joint that is used for the connection of liquids and gases pipeline.

(2) background technique:

The Placement that present known pipeline link commonly used is a pipe joint generally all is threaded, and promptly realizes being connected between the pipeline with externally threaded the screwing of pipeline port with the internal thread of pipe joint port.Such Placement must be used wrench, pliers and special tapping tool etc. in the installation or removal process, especially in some hidden or narrow places, be trouble in fact, waste time and energy, and such installation or removal often make the outer surface of pipe joint and pipeline be damaged, and destroy its anticorrosive coat.

(3) content of model utility:

The purpose of this utility model is to provide a kind of to the public not need tool using, but only with the just pipe joint used of the binding pipeline of quick mounting or dismounting of handling.

This new tube joint, comprise fittings body and lock sleeve two big parts, the front end of lock sleeve inner chamber is the shape that is slidingly matched with fittings body head end outer wall and is equipped with mutually, fittings body termination intracavity diameter and connecting line diameter are complementary, in constituting one, the rearward end of lock sleeve inner chamber and fittings body head end outer wall establish the holding cavity of holddown spring, holddown spring is sleeved on the fittings body head end outer wall, its front end is being replaced the front-end face of lock sleeve back cavity, the back table top of fittings body head end outer wall is being pressed on the crown, its rear end, the position, termination of fittings body head end outer wall is being provided with circlip groove one, a split washer device is in circlip groove, be provided with one locking trough successively with the groove of giving up the throne on the table top behind the fittings body head end outer wall, the retaining jump ring is installed in the retaining draw-in groove or the groove of giving up the throne, the place of compressing, pipeline termination of fittings body head end inner chamber is provided with at least one annular groove, be equipped with seal washer in the annular groove, radial equipartition at least three card hole of beads on the wall of fittings body front end border, be equipped with a card pearl in each card hole of bead, the smaller part of card pearl partly can expose the fittings body inner cavity surface from the card hole of bead, can take out the card pearl from the card hole of bead of fittings body outer wall, fittings body head end wall thickness is 1/2～2/3 of card pearl diameter, and lock sleeve front end internal chamber wall is pressing the outer surface that blocks card pearl in the hole of bead.

This new tube joint is stirred lock sleeve before and after the only with hand, utilizes the countersunk head nest offered on card pearl and the pipeline termination outer wall or draw-in groove to be complementary and clamps, and installation, convenient disassembly are quick, time saving and energy saving, do not need tool using.

(4) description of drawings:

Accompanying drawing is the three-way body form structure schematic representation in the utility model.

(5) embodiment:

This new tube joint comprises fittings body 1 and 2 liang of parts of lock sleeve, two parts can be made of plastics or metal, fittings body 1 can be made elbow, straight-through, forms such as threeway, fittings body 1 termination intracavity diameter is complementary with pipeline 5 diameters that need to be connected, the front end of lock sleeve 2 inner chambers is the shape that is slidingly matched with fittings body 1 head end outer wall and is equipped with mutually, lock sleeve 2 rear end outer walls are preferably made step-like or are a bit larger tham the outer diameter of front end, so that stir, the rearward end of lock sleeve 2 inner chambers and fittings body 1 head end outer wall are established the holddown spring holding cavity in constituting one, holddown spring 3 is sleeved on the fittings body 1 head end outer wall, its front end is being replaced the front-end face of lock sleeve 2 back cavities, the back table top of fittings body 1 head end outer wall is being pressed on the crown, its rear end, the position, termination of fittings body 1 head end outer wall is being provided with circlip groove 4 one, split washer is fitted in the circlip groove 4, establishing one locking trough 8 successively with the groove of giving up the throne on the table top behind the fittings body 1 head end outer wall, retaining jump ring 9 is fitted in the locking trough 8 or the groove of giving up the throne, fittings body 1 head end inner chamber is provided with annular groove at least with the place of compressing, pipeline 5 termination, be equipped with seal washer 7 in the annular groove, radial equipartition at least three card hole of beads on the fittings body 1 front end border wall, be equipped with a card pearl 6 in each card hole of bead, can take out card pearl 6 from the card hole of bead from fittings body 1 outer wall, lock sleeve 2 front end inner chambers are pressing the outer surface that blocks card pearl 6 in the hole of bead, the smaller part of card pearl 6 partly can expose the inner cavity surface of fittings body 1 from the card hole of bead of fittings body 1, when lock sleeve 2 along fittings body 1 backward during pushing, holddown spring 3 compressions, releasing is to the casing pressure of card pearl 6, the pipeline 5 that connects just can easily insert fittings body 1 inner chamber and be pressed on the seal washer 7 in fittings body 1 chamber, holddown spring 3 restores when openhanded taking off, making lock sleeve 2 internal chamber walls will block pearl 6 is pressed in the countersunk head nest or draw-in groove on the pipeline 5, fittings body 1 is in locking state with pipeline 5, retaining jump ring 9 is allocated in the locking trough 8, can prevents better that pipeline 5 from getting loose from fittings body 1 inner chamber.Such Placement only with hand Pushpulll locking cover 2 can be realized, and is fast convenient, time saving and energy saving.

This new tube joint can be made forms such as elbow, straight-through, threeway, and each joints structure form is all identical.

Claims

1, a kind of quick Connector coupling, comprise 2 liang of parts of fittings body 1 and lock sleeve, it is equipped mutually that the front end that it is characterized in that lock sleeve 2 inner chambers and fittings body 1 head end outer wall are the shape that is slidingly matched, fittings body 1 termination intracavity diameter and pipeline 5 diameters are complementary, the rearward end of lock sleeve 2 inner chambers and fittings body 1 head end outer wall are established the holddown spring holding cavity in constituting one, holddown spring 3 is sleeved on the fittings body 1 head end outer wall, its front end is being replaced the front-end face of lock sleeve 2 back cavities, the back table top of fittings body 1 head end outer wall is being pressed on the crown, its rear end, the position, termination of fittings body 1 head end outer wall is being provided with circlip groove 4 one, the split washer device is in circlip groove 4, be provided with one locking trough 8 successively with the groove of giving up the throne on the table top behind the fittings body 1 head end outer wall, retaining jump ring 9 is fitted in the locking trough 8 or the groove of giving up the throne, the place of compressing, pipeline 5 termination of fittings body 1 head end inner chamber is provided with at least one annular groove, be equipped with seal washer 7 in the annular groove, radial equipartition at least three card hole of beads on the fittings body 1 front end border wall, be equipped with a card pearl 6 in each card hole of bead, fittings body 1 head end wall thickness is 1/2～2/3 of card pearl diameter.