CN201237035Y

CN201237035Y - Curve-seal double-ring pressure reinforced thin-wall metal pipe connector

Info

Publication number: CN201237035Y
Application number: CNU2008202210396U
Authority: CN
Inventors: 卜莹
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-11-11
Filing date: 2008-11-11
Publication date: 2009-05-13
Anticipated expiration: 2018-11-11

Abstract

The utility model provides a curve-sealed double-ring-crush strengthened thin-wall metal pipe connector, which comprises a pipe joint main body, a sealing ring and a pipe body, wherein, two inner shoulder holes are sequentially formed, from inside to outside, in the inner wall at one end of the pipe joint main body; two convex rings are arranged at one end of the pipe body; the sealing ring is sheathed outside the convex rings of the pipe body; the end portion of the pipe body are inserted in the inner shoulder hole inside; the section of the pipe body having the convex rings is inserted in the inner shoulder hole outside to ring-crush both sides of the convex rings to form the curve-sealed double-ring-crush strengthened thin-wall metal pipe connector; a groove is formed on the inner annular surface of the sealing ring; and the groove has an outer curved surface matched with the outer profile of the convex ring. By adopting the curve-sealed double-ring-crush strengthened connection structure, the connector can change the conventional sealing connection manner, and has the advantages of firm connection, good sealing performance, large compressive strength and long service life.

Description

Curve-seal double-ring pressure reinforced thin-wall metal pipe connector

Technical field

The utility model relates to a kind of metallic conduit connecting body, specifically, relates to a kind of curve-seal double-ring pressure reinforced thin-wall metal pipe connector.

Background technique

Existing pipeline Placement, generally be by screw thread or be welded to connect, this Placement processing intensity is big, installment work efficient is lower, the technology more complicated, and pipe fitting need reprocess just and can meet connection request, and production process is many, lose time, these all are difficult to satisfy the needs that society builds fast.

China Patent No. is 03234617.4, denomination of invention discloses a kind of link that connects tubing for the utility model patent of " ring pressure type pipeline connecting parts ", this link structural design is simple, easy to connect, it is with after being connected body and encircling pressure, make this link form hollow slot on the body, and reach the purpose that the two is connected firmly with this with being connected; But in actual applications, if the ring compression degree is not enough, then the hollow slot cup depth is limited, and this link just can not get ensureing that if the ring compression degree is bigger, then destructible tubing also influences the connecting body beautiful shape simultaneously with the connectivity robustness that is connected body; And this link linkage structure is more single, and the seal ring sealing configuration adopts traditional line seal structure, under the bigger situation of pressure, and the deficiency that its sealability and anti-pressure ability just manifest.

In order to overcome the above problems, people are seeking a kind of desirable technical solution always.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, thereby providing a kind of is connected firmly, good seal performance, compressive strength big, the curve-seal double-ring pressure reinforced thin-wall metal pipe connector of long service life.

Goal of the invention of the present utility model is to realize by following technological scheme:

A kind of curve-seal double-ring pressure reinforced thin-wall metal pipe connector, comprise the pipe fitting joint body, seal ring and body, the inwall of at least one end of described pipe fitting joint body reaches the outer shoulder hole in the twice that is disposed with by the lining, at least one end of described body is provided with and is no less than two bulge loops, the sheathed described seal ring in the bulge loop outside of described body, the end of described body is plugged in the inboard interior shoulder hole, the part that described body is provided with bulge loop is plugged in the interior shoulder hole in the outside together with one of the seal ring that is set on the bulge loop, and ring presses described bulge loop both sides to form curve-seal double-ring pressure reinforced thin-wall metal pipe connector.

Based on above-mentioned, the side ring surface has the groove that corresponding described bulge loop external frame is provided with in the described seal ring; Described groove has the groove positive camber that matches with described bulge loop external frame.

Based on above-mentioned, described bulge loop longitudinal section is bald taper.

Based on above-mentioned, described body one end is provided with two bulge loops.

The utility model has substantive distinguishing features and progressive with respect to prior art, specifically, following beneficial effect is arranged:

1, adopt special tool that pressure is encircled in body bulge loop both sides, then interior shoulder hole, the seal ring of pipe fitting joint and be plugged in the body end of shoulder hole encircled to press and formed the curve-seal connecting body, be able to secure seal and connect thereby make the three produce distortion; This connecting body makes to be rigidly connected and to flexibly connect and combines, and has improved sealing, crushing resistance and the connectivity robustness of this connecting body greatly;

When 2, installing, the ring that the end need only be had the body insertion pipe fitting joint of bulge loop is pressed the end of reinforced structure, then, use special tool to encircle pressure, the ring that makes the end have the body of bulge loop and pipe fitting joint presses the end of reinforced structure to produce extruding or distortion in rolling, cause that both are lasting, firmly, the connection of sealing, install simple and convenient, easy operating, saving of work and time;

3, the body of end with bulge loop itself need not carry out damaging reprocessing, and need only diffusion forming the body bulge loop can be connected with described pipe fitting joint body;

4, this connecting body adopts the curve-seal linkage structure, has thoroughly changed traditional mode that is tightly connected, and its scientific structure design is reasonable, simple and practical, good seal performance, and long service life, and be easy to manufacturing, cost is low; This connecting body is connected firmly, and compared with similar products, its join strength improves 2-3 times, and connecting body connects, the seal section radial strength has improved 2-3 times;

5, in certain pressure-bearing scope, connecting body this thin-walled connecting body and heavy wall, the screwed connection mode has under the situation of suitable bearing capacity, this connecting body can be saved 40%-60% raw material, and manufacturing process is simple, and then as can be known, its cost of raw material and manufacture cost can save 50%-70% comparatively speaking; As seen, in certain pressure-bearing scope, this thin-walled connecting body can replace the screwed connection body, and, in mesolow gas, fluid pipeline transportation art, have application value well.

Description of drawings

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

Fig. 2 is the structural representation before the utility model ring is pressed.

Embodiment

For advantage of the present utility model and technical characteristics further are described, provide embodiment of the present utility model below in conjunction with accompanying drawing:

As depicted in figs. 1 and 2, a kind of curve-seal double-ring pressure reinforced thin-wall metal pipe connector comprises pipe fitting joint body 1, seal ring 4 and body 5;

The inwall of described pipe fitting joint body 1 at least one end is by shoulder hole 2 and interior shoulder hole 3 in lining and outer being disposed with, described body 5 at least one ends are provided with bulge loop 6 and bulge loop 7, the sheathed described seal ring 4 in the bulge loop outside of described body 5, the end 8 of described body 5 is plugged in the described interior shoulder hole 2, the part that described body 5 is provided with described bulge loop is plugged in the described interior shoulder hole 3 together with one of the seal ring that is set on the bulge loop, and ring presses described bulge loop both sides to form curve-seal double-ring pressure reinforced thin-wall metal pipe connector.

Based on above-mentioned, the side ring surface has the groove that corresponding described bulge loop external frame is provided with in the described seal ring 4; Described groove has the groove positive camber that matches with described bulge loop external frame.

Need to prove, an above-described seal ring 4 all can be set separately on each bulge loop, also can two bulge loops or shared one of a plurality of bulge loop have twice or multiple tracks groove, above-described seal ring 4;

Based on above-mentioned, described bulge loop longitudinal section is bald taper, is beneficial to produce stronger join strength and axial tensile strength.

The inner diameter of shoulder hole 2 and the outer diameter of described body 5 ends 8 are complementary in described, so that the fixing and location of body 5.

As shown in Figure 2, during installation, earlier seal ring 4 is set on the bulge loop, then, body 5 ends 8 are inserted in the interior shoulder hole 2 with fixing and positioning action of pipe fitting joint body 1, then, the part that described body 5 is provided with described bulge loop plugs in the described interior shoulder hole 3 together with one of the seal ring that is set on the bulge loop, then, as shown in Figure 1, adopt special tool that pressure is all encircled in the both sides of each bulge loop, make the interior shoulder hole 3 of pipe fitting joint body 1, seal ring 4 and the body 5 that is plugged in the interior shoulder hole 3 are pressed by ring, shrink gradually and gather, the three is combined closely, and finally form curve-seal, strengthen the structure of connection.

When ring is pressed,,, can produce two kinds of ring laminated structures by controlling the ring compression amount of each ring pressure point according to connecting needs:

1, not with the bulge loop two side ring compressive strains of described body 5, as shown in Figure 1, this ring laminated structure does not influence the body fluid flow, and the inside and outside distortion that causes because of expanding with heat and contract with cold does not influence sealing intensity;

2, the both sides of each bulge loop of described body 5 are all encircled compressive strain or will be encircled the compressive strain of pressure point ring individually, this ring laminated structure is beneficial to and strengthens join strength, sealing intensity and axial tensile strength.

Of particular note, other end of described pipe fitting joint body 1 can be to have the end that ring is pressed reinforced structure, also can be the end with other linkage structure.

Should be noted that at last: above embodiment only is not intended to limit in order to the explanation the technical solution of the utility model; Although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characteristics is equal to replacement embodiment of the present utility model; And not breaking away from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technological scheme scope that the utility model asks for protection.

Claims

1, a kind of curve-seal double-ring pressure reinforced thin-wall metal pipe connector, comprise pipe fitting joint body (1), seal ring (4) and body (5), it is characterized in that: the inwall of at least one end of described pipe fitting joint body (1) is by lining and outer interior shoulder hole (2) and the interior shoulder hole (3) of being disposed with, at least one end of described body (5) is provided with and is no less than two bulge loops, the bulge loop outside sheathed described seal ring (4) of described body (5), the end (8) of described body (5) is plugged in the described interior shoulder hole (2), the part that described body (5) is provided with bulge loop is plugged in the described interior shoulder hole (3) together with one of the seal ring that is set on the bulge loop, and ring presses described bulge loop both sides to form curve-seal double-ring pressure reinforced thin-wall metal pipe connector.

2, curve-seal double-ring pressure reinforced thin-wall metal pipe connector according to claim 1 is characterized in that: the interior side ring surface of described seal ring (4) has the groove that corresponding described bulge loop external frame is provided with.

3, curve-seal double-ring pressure reinforced thin-wall metal pipe connector according to claim 2 is characterized in that: described groove has the groove positive camber that matches with described bulge loop external frame.

4, curve-seal double-ring pressure reinforced thin-wall metal pipe connector according to claim 1 is characterized in that: described bulge loop longitudinal section is bald taper.

5, curve-seal double-ring pressure reinforced thin-wall metal pipe connector according to claim 1 is characterized in that: described body (5) one ends are provided with bulge loop (6) and bulge loop (7).