CN2486811Y

CN2486811Y - Fast pipe joint

Info

Publication number: CN2486811Y
Application number: CN 01246591
Authority: CN
Inventors: 陈醒民
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-07-17
Filing date: 2001-07-17
Publication date: 2002-04-17
Anticipated expiration: 2011-07-17

Abstract

The utility model relates to a pipe fitting joint which solves the quick connection problem, comprising a joint body which is provided with a port for pipes to be inserted which is a step-shaped cylindrical cavity that is successively provided with an O-ring, a washer, a snap spring and a clasp, and being characterized in that the washer, the snap spring and the clasp together with buttons inside form a locking device to connect a pipe with a pipe joint. The utility model has the advantages of having a new and easy structure, being connected quickly, being used conveniently and having a good sealing performance, which enable the utility model to be used for connection among multi-types of pipes in various water-heating pipe systems.

Description

Quick pipe coupling

The utility model relates to pipe fitting joint, solves quick connectivity problem.

Existing copper tube, brazed fitting adopt welding type, red copper circle clamp caption nut mode or alternate manner, and the combined type aluminium plastic pipe joint adopts C shape brass snap ring caption nut mode, be applied to each field of pipe-line system respectively with upper connection, its access or welding, the sealing-off earlier of dismounting pipe, or screw in, screw out outer nut, operate cumbersome.

The purpose of this utility model is to provide a kind of quick pipe coupling that can insert and remove pipe fast, and it is easier, quick that it connects pipe, thereby overcomes the deficiency of prior art.

Goal of the invention of the present utility model is achieved by the following scheme: can be for being the stepped shaft cylindrical cavity in the port of pipe insertion on the fittings body of this rapid pipe joint, be provided with O type circle, packing ring, jump ring and snap ring in the chamber successively, and packing ring, jump ring and the snap ring button interior with being pressed into snap ring constitutes the locking device that pipe combines with the pipe joint socket, wherein contain the opening spring tooth that distributes by taper on the jump ring, and stretch in the shoulder hole that has tapering in the packing ring, be pressed between button in the snap ring and snap ring and have pothook and the draw-in groove portion that is bonded with each other.Button end has the conical surface that can touch with the spring toe joint, and by cap and fittings body end wall one spacing that can inwardly press for button is arranged each other on the button, and be embedded in a safety ring by the annular groove that this spacing constitutes, pressed button to avoid children or inoperative personnel mistake.

The utility model is compared with prior art: owing to be provided with the locking device that is made of button, snap ring, jump ring and packing ring in joint, therefore at the access tube period of the day from 11 p.m. to 1 a.m, only need directly insertion to get final product, and when removing, also only need press the button, extract pipe simultaneously and get final product, operation is very easy; And the effect by the spring tooth, connect firm, can not become flexible, good seal performance can be widely used in the polytype pipe in the various plumbing pipe system, comprises copper tube, brass tube and combined type plastic-aluminum pipe; In addition, can avoid children or inoperative personnel to extract pipe mistakenly out with erecting device and cause water leakage phenomenon.

Description of drawings:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of jump ring.

Embodiment to the utility model is described further below in conjunction with accompanying drawing.

As shown in Figure 1, this rapid pipe joint mainly is made of fittings body 1, button 7, snap ring 5, jump ring 4, packing ring 3 and O RunddichtringO 2.Wherein fittings body 1 is a body that connects, and has step-like cylindrical cavity in its two-port, and snap ring 5, jump ring 4, packing ring 3 and O type circle 2 are located in the cavity successively.

Button 7 is that "T"-shaped of through hole arranged in the middle of one, and it press cap 8 ovalizes, and there is the conical surface 11 of projection the end, and should the projection conical surface 11 with middle cylinder between the pothook 10 that is connected with seizing type of formation and snap ring draw-in groove portion 9.

Snap ring 5 is a stepped shaft annulus, with adapter body in the stepped shaft cavity coincide.The snap ring through hole also is a shoulder hole, to form draw-in groove portion 9.

Jump ring is one to be evenly equipped with the locking ring of opening spring tooth 12, and each spring tooth 12 inwardly press tapers distribution.

Packing ring 3 is an annulus, and its through hole is the shoulder hole that has tapering.

During assembling, earlier O RunddichtringO 2 is packed in fittings body 1 cavity in order, reinstall packing ring 3, jump ring 4 and snap ring 5, jump ring 4 is clamped between packing ring 3 and the snap ring 5, and its spring tooth 12 stretches in the shoulder hole that has tapering of packing ring 3, at last button 7 is pressed into the snap ring endoporus, and the pothook 10 of its end fastens with the draw-in groove portion of snap ring 9, it can not be deviate from snap ring 5, and ellipse is positioned at outside the fittings body 1 by cap 8, and and a spacing is arranged between the end wall, constitute locking device.

When pipe joint is connected with pipe, earlier button 7 is inwardly pressed, make turret terminal conical surface 11 all withstand the spring tooth 12 of jump ring, make its downwards, expand outwardly, pipe is inserted joint then smooth-goingly, stop by the through fittings body internal chamber wall of button hole, at this moment release button, button 7 returns to original position under the elastic reaction of jump ring 4, simultaneously spring tooth 12 is also replied, and is close to and grabs on the surface of pipe, and it is loosening that it is difficult for, can not drop out, reach the purpose of locking.And owing to reach the hermetic seal function by O type circle 2.

At this moment, if not normally take out pipe, when pipe is outwards extracted out, because jump ring 4 produces reverse pulling force, so stop pipe outwards to move.

If need the normal pipe that takes out: then button 7 inwardly will be pressed earlier, make jump ring spring tooth 12 expand outwardly, this moment, the spring tooth 12 disengaged pipe, caused taking-up unimpededly easily when pipe outwards extracted out.

In order to prevent that children or inoperative personnel from pressing button 7 by mistake, this joint also is provided with the safety installations that is made of safety ring 6.This safety ring 6 is inserted in the annular groove that constitutes by the spacing between cap 8 and the snap ring 5, inwardly presses to stop button 1, makes that button 7 can't proper functioning, and then can not cause that pipe is shifted in fittings body, the generation water leakage phenomenon.

Except structure shown in Figure 1, this rapid pipe joint also has other constructional variant, and does not break away from scope of the present utility model.Fittings body as described can adopt other structural type, adapts the correspondingly setting of conversion locking device simultaneously with the pipe with required connection.In a word, protection domain of the present utility model should comprise those conversion or alternative and remodeling for related domain.

Claims

1. quick pipe coupling, comprise fittings body (1), it is characterized in that: can be on the described fittings body (1) for being the stepped shaft cylindrical cavity in the port of pipe insertion, be provided with O type circle (2), packing ring (3), jump ring (4) and snap ring (5) in the chamber successively, and packing ring (3), jump ring (4) and snap ring (5) button (7) interior with being pressed into snap ring (5) constitutes the locking device that pipe is connected with pipe joint.

2. quick pipe coupling as claimed in claim 1, it is characterized in that: contain the opening spring tooth (12) that distributes by taper on the described jump ring (4), and be arranged in the shoulder hole that has tapering that its spring tooth (12) of jump ring between snap ring (5) and packing ring (3) stretches into packing ring (3), be pressed between interior button (7) of snap ring (5) and snap ring (5) and have pothook (10) and the draw-in groove portion (9) that is bonded with each other, button (7) end has the conical surface (11) that can contact with spring tooth (12), and button has a spacing that can supply button (7) inwardly to press each other by cap (9) and fittings body (1) end wall.

3. quick pipe coupling as claimed in claim 2 is characterized in that: described fittings body also is provided with a safety installations on (1), and this device is a safety ring (6), is located in the annular groove that constitutes by spacing between cap (8) and the fittings body (1).

4. as claim 2 or 3 described quick pipe couplings, it is characterized in that: described cap (8) ovalize of pressing.