CN201326843Y

CN201326843Y - Rapid joint with snap ring

Info

Publication number: CN201326843Y
Application number: CNU2008201674266U
Authority: CN
Inventors: 林岳华
Original assignee: ZHEJIANG SEJIN WATER INDUSTRY Co Ltd
Current assignee: ZHEJIANG SEJIN WATER INDUSTRY Co Ltd
Priority date: 2008-11-06
Filing date: 2008-11-06
Publication date: 2009-10-14
Anticipated expiration: 2018-11-06

Abstract

Disclosed is a rapid joint with a snap ring, which is adaptable to connecting pipelines. The rapid joint comprises a joint body, and at least one end of the joint body is equipped with an inner cavity. Besides, a sealing ring, a ring-shaped station, a snap ring and an auxiliary ring are assembled sequentially from inside to outside along an axis of the inner cavity of the joint body, wherein the internal diameter of the ring-shaped station is large outside and small inside, the snap ring is evenly equipped with three or more elastic pawls inward along the circumference of the snap ring, the auxiliary ring is fixed inside the inner cavity, the sealing ring is fixed between a step end face of the inner cavity and a left end face of the ring-shaped station, and the snap ring is fixed between a right end face of the ring-shaped station and a left end face of the auxiliary ring. In addition, a disconnecting pipe sleeve with an arrowhead-shaped cross section is sleeved inside the auxiliary ring, and the head portion of the disconnecting pipe sleeve is fixed between the elastic pawls of the snap ring and a shoulder end face of the auxiliary ring. The rapid connecting joint with the snap ring is capable of realizing fixed connection by inserting pipe materials when in installation. Additionally, products installation is convenient and rapid by means of taking out the mounted pipe materials conveniently, and connection of multi-type pipe materials can be achieved. Further, the products have the advantages of low costs, safety, reliability and preferable market prospect.

Description

Band clasp rapid pipe joint

Technical field

The invention relates to a kind of pipeline connection technology, is specifically related to a kind of rapid pipe joint.

Background technique

The joint that connects copper pipe in the prior art comprises that nut 2 ', that the adapter body 1 ', of a band male end 10 ' cooperates with male end 10 ' is assemblied in the cutting ferrule 3 ' between adapter body 1 ' and the nut 2 ' as shown in Figure 1; Joint makes its distortion chucking insert the copper pipe of joint by threaded together extruding cutting ferrule 3 ', realizes connecting; For increasing clamping force, improve tubing intensity, be with stay tube cover 4 ' at pipe material inner wall.The copper pipe of prior art connects needs tool operation, and to the having relatively high expectations of assembler, and the extruding degree is excessive or too smallly hide some dangers for all can for the leakage of pipeline; Pipe fitting adopts extruded sealing structure in addition, loses efficacy easily at the vibration condition lower seal, also can cause pipeline to be revealed, and causes hidden danger is installed.All improving existing pipe technology in the world at present, towards convenient reliable pipeline connection technology development.

Summary of the invention

The invention is designed a kind of employing snap ring and is fixed at the structural defective of traditional copper pipe jointing, the rapid pipe joint of seal ring sealing, this joint structure novelty, solved traditional jointing installation requirement height, the problem of safety reliability difference, and pipe fitting is applicable to polymorphic type tubing.

The technological scheme that the invention is adopted is:

A kind of band clasp rapid pipe joint, this joint comprises that at least one end is provided with the fittings body of inner chamber, imperial palace circlet shape platform outside fittings body inner chamber axis is equipped with a seal ring, an internal diameter from inside to outside successively, one inwardly evenly is provided with three or the snap ring of that above elasticity pawl along circumference, and one is fixed on the auxiliary ring in the inner chamber; Seal ring is fixed between inner chamber ladder end face and the annular table left side; Snap ring is fixed between annular table right side and the auxiliary ring left side; One cross section is the sagittate pipe box of separating and is enclosed within the auxiliary ring, and head is fixed between snap ring elasticity pawl and the auxiliary ring shoulder end face.

The invention all right:

Its internal chamber wall mouth of described fittings body tightens up fixedly auxiliary ring by riveting.

Described snap ring is provided with a kerf.

Described snap ring adopts stainless steel.

Described snap ring adopts plastic material.

Above-mentioned snap ring plastic material is ABS.

Described band clasp rapid pipe joint also comprises a pipe inner support.

The band clasp quick coupling structure uniqueness of the invention adopts snap ring that the tubing that inserts is fixed, and realizes sealing by seal ring, compares with the traditional copper pipe joint to have: 1.Joint is exempted from instrument and is installed, and directly tubing is inserted and can realize connecting; 2.Joint not only can connect copper pipe, can also connect tubing such as aluminium-plastic composite pipe, UPVC pipe, PEX pipe, and joint is applied widely; 3.Joint is provided with takes over cover, does not damage pipe fitting and gets final product tubing for convenience detach; 4.Joint adopts riveting fixing internal accessory, the unsafe factor that having eliminated is threaded brings, and product cost is low, and is safe and reliable, has market prospects preferably.

Description of drawings

Fig. 1 is the three-dimensional cross-sectional schematic of traditional jointing;

Fig. 2 is the complete section structural representation of the invention pipe fitting;

Fig. 3 analyses and observe schematic perspective view for the band pipe inner support pipe fitting of the invention;

Fig. 4 is the snap ring schematic perspective view of the invention;

Fig. 5 is another embodiment's schematic perspective view of snap ring of the invention.

Embodiment

Below in conjunction with drawings and embodiments the invention is further described.

Shown in Fig. 2 to 3, the band clasp rapid pipe joint of the invention, this joint comprises that at least one end is provided with the fittings body 1 of inner chamber 10, imperial palace circlet shape platform 3 outside fittings body 1 inner chamber 10 axis are equipped with a seal ring 2, an internal diameter 30 from inside to outside successively, one snap ring 4, that inwardly along circumference the elasticity pawl 40 more than three or three is set evenly is fixed on the auxiliary ring 5 in the inner chamber 10; Seal ring 2 is fixed between inner chamber 10 ladder end faces 11 and annular table 3 left sides 31; Snap ring 4 is fixed between annular table 3 right sides 32 and auxiliary ring 5 left sides 50; One cross section is the sagittate pipe box 6 of separating and is enclosed within the auxiliary ring 5, and head 60 is fixed between snap ring 4 elasticity pawls 40 and the auxiliary ring 5 shoulder end faces 51.

The described joint of the invention can be threeway, elbow, directly or male connection etc., corresponding inner chamber 10 quantity have one, two or more, as shown in Figure 2 be the internal thread elbow, be provided with an inner chamber 10.Inner chamber 10 two ends of fittings body 1 are logical empty, and its left end cross section is a hierarchic structure.One seal ring 2 is assemblied on the ladder end face 11, and seal ring 2 can adopt sealed materials such as NBR, EPDM or FPM, and the pipe fitting of employing seal ring 2 can adapt to the sealing needs as tubing such as UPVC pipe, aluminium-plastic composite pipes.The inclined-plane that the internal diameter 30 of annular table 3 forms becomes angle 10 degree to 50 degree with the axle center, preferentially be chosen to angle 25 degree, and annular table 3 is assemblied in the cavity 10, another ladder surface 13 in its left side 31 contact cavitys 10.Snap ring 4 is a funnel shape, as shown in Figure 4, be clipped between annular table 3 and the auxiliary ring 5 is that an annular edge is along 41, annular edge is extended the elasticity pawl 40 more than three or three in oblique along 41, the pipe of 40 pairs of insertions of elasticity pawl plays the effect of anti-back, snap ring 4 can adopt stainless steel, also can adopt plastic materials such as ABS, PSU, nylon, PE; For adding the anti-back ability of strong elasticity pawl 40, snap ring 4 is provided with a kerf 42, as shown in Figure 5.Auxiliary ring 5 plays the effect of fixing internal accessory structure, and auxiliary ring 5 is fixed by the inner chamber 10 wall mouths 14 riveting undergauges of fittings body 1, also can adopt at wall mouth 14 outside thread is set, by the spacing fixedly auxiliary ring 5 of nut that cooperates with it.Described head 60 inclined-planes of separating pipe box 6, the angle that the angle that forms with the axle center of inner chamber 10 forms less than snap ring 4, with annular table angle identical; When operation, as long as separate the pipe box part 61 that pipe box 6 is exposed on the external by inside propelling, elasticity pawl 40 compressions with snap ring 4 make elasticity pawl 40 bores become big, mounted tubing can be pulled out again.

In installation process, be to strengthen the intensity of tubing, can be inserted in as shown in Figure 3 pipe inner support 7 in the securement head of tubing, as the pipe fitting accessory, can independently go out the joint product.

The band clasp fast connecting joint of the invention during installation inserts tubing, can achieve a fixed connection by snap ring 4 structures, has exempted the trouble that instrument is installed; Can as required mounted tubing conveniently be withdrawed from by separating pipe box 6 structures in addition, it is convenient that product is installed, and can realize the connection of polymorphic type tubing, and product cost is low, and is safe and reliable, has market prospects preferably.

Claims

1, a kind of band clasp rapid pipe joint, this joint comprises that at least one end is provided with the fittings body of inner chamber (10) (1), it is characterized in that: imperial palace circlet shape platform (3) outside fittings body (1) inner chamber (10) axis is equipped with a seal ring (2), an internal diameter (30) from inside to outside successively, one inwardly evenly is provided with the snap ring (4) of three or three above elasticity pawls (40) along circumference, one is fixed on the auxiliary ring (5) in the inner chamber (10); Seal ring (2) is fixed between inner chamber (10) ladder end face (11) and annular table (3) left side (31); Snap ring (4) is fixed between annular table (3) right side (32) and auxiliary ring (5) left side (50); One cross section is the sagittate pipe box (6) of separating and is enclosed within the auxiliary ring (5), and head (60) is fixed between snap ring (4) elasticity pawl (40) and auxiliary ring (5) the shoulder end face (51).

2, band clasp rapid pipe joint as claimed in claim 1, its characteristics are: described fittings body (1), its inner chamber (10) wall mouth (14) pass through fixedly auxiliary ring (5) of riveting undergauge.

3, band clasp rapid pipe joint as claimed in claim 1, its characteristics are: described snap ring (4) is provided with a kerf (42).

4, as claim 1 or 2 or 3 described band clasp rapid pipe joints, its characteristics are: described snap ring (4) adopts stainless steel.

5, as claim 1 or 2 or 3 described band clasp rapid pipe joints, its characteristics are: described snap ring (4) adopts plastic material.

6, band clasp rapid pipe joint as claimed in claim 5, its characteristics are: described snap ring (4) plastic material is ABS.

7, band clasp rapid pipe joint as claimed in claim 1, its characteristics are: described joint also comprises a pipe inner support (7).