CN2797824Y

CN2797824Y - Quick action sealing joint for thin-wall metal tube

Info

Publication number: CN2797824Y
Application number: CN 200520031021
Authority: CN
Inventors: 卜莹
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-06-16
Filing date: 2005-06-16
Publication date: 2006-07-19
Anticipated expiration: 2015-06-16

Abstract

The utility model relates to a quick sealing and pressing joint for a thin wall metal pipe, which uses multiple sealing and the connection structure and has quick and convenient installation, good sealing properties and long service life. The inner wall on at least one end of the pipe joint is provided with an inner stepped hole, sealing convex ring grooves, a fixing convex ring groove and a clamping press opening of a convex ring of a pipe joint port in sequence from the inner side to the outer side. The sealing convex ring grooves are more than one, and the inside of each sealing convex ring groove is provided with an O-shaped sealing ring to form the end of the multiple clamping press type sealing structure. During installation, the connected pipe with an end provided with the convex ring is inserted in the end of the pipe joint. Then a special tool is used for sealing and pressing to cause the pipe and the end of the pipe joint to generate an extruding form, and the during and firm sealing connection remains between the pipe and the end of the pipe joint. The structure uses the multiple sealing and the connection structure to cause the sealing properties and the firmness of the connection to be reliably ensured, has the advantages of long service life, easy fabrication, low cost, and simple and easy connection and is chiefly applied to the fitment industry and the decoration industry.

Description

A kind of thin metallic tubd quick-acting pressing joint

Technical field

The utility model relates to a kind of metal pipe element joint, specifically, relates to a kind of thin metallic tubd quick-acting pressing joint.

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.For deficiency that solves above pipe coupling and the needs that satisfy reality, the quick-acting pressing joint that connects has appearred on the market partly promptly simply being easy to again successively, China Patent No. 99208089.4, patent name be " Stainless Steel Tube quick-acting pressing joint " patent disclosure a kind of envelope crimp head of metal tube, but this joint structure is too simple, there is not sealing reliably, linkage structure, cause sealability and connectivity robustness to be guaranteed, especially be subjected to external force to do the time spent, be easy to come off, spin, in the course of time, its sealability promptly can reduce, thereby causes inconvenience to the user.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of that adopt multi-sealed and linkage structure and the thin metallic tubd quick-acting pressing joint of easy rapidly, good seal performance, long service life is installed.

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

A kind of thin metallic tubd quick-acting pressing joint, comprise pipe joint 1 body, the inwall of described pipe joint 1 at least one end by on shoulder hole 4, the interior shoulder hole 4 in lining and outer being disposed with radially a circle sealing bulge loop groove 8 of protuberance, a circle that pipe joint 1 inwall radially swells fixedly the bulge loop card of bulge loop groove 5 and pipe joint 1 port press mouth 6, described sealing bulge loop groove 8 is no less than one, and constitutes the end of multiple card means of press seals formula structure with this; Described sealing bulge loop groove 8 the insides are provided with O RunddichtringO 9.

Fixedly bulge loop groove 5 walls of described pipe joint 1 are radially by lining and outer expansion.

The body bulge loop card of described pipe joint 1 presses mouthfuls 6 with fixing bulge loop groove 5 angle to be arranged.

The described pipe joint 1 tube body the other end is the end of multiple card means of press seals formula structure, and described pipe joint 1 tube body is straight tube, 45 ° of bend pipes or 90 ° of bend pipes.

Described pipe joint 1 tube body is decompression reducing type, and its small end is the end of multiple card means of press seals formula structure.

The described pipe joint 1 tube body the other end is outside thread or internal thread; Described pipe joint 1 tube body is straight tube, 45 ° of bend pipes or 90 ° of bend pipes.

Described pipe joint 1 tube body is threeway branch pipe or equal tee or reducing tee or straight cross or reducing cross; The threeway branch pipe mouth of pipe of described pipe joint 1 is the end of outside thread or internal thread or multiple card means of press seals formula structure.

The utility model has substantive distinguishing features and progressive with respect to prior art, specifically, following beneficial effect is arranged: when 1, installing, connected end need only be had the end that the body of bulge loop or flat back-up ring inserts the multiple card means of press seals formula structure of aforementioned tube adaptor tube body, use the special tool envelope to press then, the end that makes the end have the multiple card means of press seals formula structure of the body of bulge loop or flat back-up ring and pipe joint produces extruding or distortion in rolling, cause both connections lasting, firm, that seal, thereby replace traditional screw thread or the effect that is welded to connect; 2, the end body that has bulge loop or a flat back-up ring itself need not carry out damaging reprocessing, need only diffusion form the body bulge loop or the flat back-up ring can be connected with this pipe joint, the wall thickness of body does not need to set according to specific (special) requirements yet, promptly need not reserve the machining allowance of body, make the metal consumptive material of body greatly reduce, production process and cost reduce greatly, have reduced the overall cost of engineering; 3, use special tool that this structural design is connected in the mode of blocking pressure or roll extrusion and get final product, simple and convenient, easy operating, saving of work and time; 4, this structure adopts multi-sealed and the structure that is connected, the simplicity of design practicality, and good seal performance is connected firmly, long service life, pipe joint is easy to manufacturing, and cost is low.

Description of drawings

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

Fig. 2 is an another kind of structural representation of the present utility model;

Fig. 3 is a kind of mounting structure schematic representation of the present utility model;

Fig. 4 is the utility model embodiment one a structural representation;

Fig. 5 is the utility model embodiment two a structural representation;

Fig. 6 is the utility model embodiment three a structural representation;

Fig. 7 is the utility model embodiment four a structural representation;

Fig. 8 is the utility model embodiment five a structural representation;

Fig. 9 is the utility model embodiment six a structural representation;

Figure 10 is the utility model embodiment seven a structural representation;

Figure 11 is the utility model embodiment eight a structural representation;

Figure 12 is the utility model embodiment nine a structural representation;

Figure 13 is the utility model embodiment ten a structural representation.

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 shown in Figure 1, a kind of Thin Stainless Steel wall metallic pipe quick-acting pressing joint, comprise stainless steel joint for pipeline 1 body, the inwall of described stainless steel joint for pipeline 1 at least one end by on shoulder hole 4, the interior shoulder hole 4 in lining and outer being disposed with radially a circle sealing bulge loop groove 8 of protuberance, a circle that pipe joint 1 inwall radially swells fixedly the bulge loop card of bulge loop groove 5 and pipe joint 1 port press mouth 6, described sealing bulge loop groove 8 the insides are provided with O RunddichtringO 9, and constitute the end of multiple card means of press seals formula structure with this; The cross section of the fixedly bulge loop groove 5 of described stainless steel joint for pipeline 1 is two semicircles or two semicircular arcs, fixedly bulge loop groove 5 walls mainly are that the stainless steel body 2 connected for convenience, that the end has bulge loop 7 or flat back-up ring inserts radially by the lining and outer enlarge or upwarp; The body bulge loop card of described stainless steel joint for pipeline 1 presses mouthfuls 6 with fixing bulge loop groove 5 angle to be arranged, and mainly is in order to can be good at bulge loop 7 or the combination of flat back-up ring with the stainless steel body when card is pressed, and is convenient to sealing.

As shown in Figure 2, a kind of Thin Stainless Steel wall metallic pipe quick-acting pressing joint, the circle that radially swells on the shoulder hole 4 in described seals bulge loop groove 8, described sealing bulge loop groove has two, promptly seal bulge loop groove 8 and sealing bulge loop groove 8 ', described sealing bulge loop groove 8 and sealing bulge loop groove 8 ' the inside also be respectively arranged with O RunddichtringO 9 and O RunddichtringO 9 '.

As shown in Figure 3, during installation, the inwall of stainless steel joint for pipeline 1 one ends is by lining and the outer interior shoulder hole 4 that matches with body 2 port bodys that has successively, the fixedly bulge loop groove 5 that matches with the bulge loop 7 or the flat back-up ring of body 2 and the card of Ke Ka pressure pipe body bulge loop 7 or flat back-up ring are pressed mouth 6, the bulge loop 7 of body 2 or flat back-up ring are provided with in the seal ring 3 back insertion tube joints 1, use special tool to press the mode of mouth 6 that the fixedly bulge loop groove 5 of stainless steel joint for pipeline 1 and the body bulge loop 7 or the flat back-up ring of stainless steel body 2 are connected and sealed with fixedly bulge loop groove 5 and body bulge loop card that card pressure or roll extrusion mode compress pipe joint 1 then;

As shown in Figure 4 and Figure 5, the described stainless steel joint for pipeline 1 tube body the other end end that is multiple card means of press seals formula structure; Described stainless steel joint for pipeline 1 tube body can be straight tube, 45 ° of bend pipes or 90 ° of bend pipes.

As shown in Figure 6 and Figure 7, described stainless steel joint for pipeline 1 tube body is decompression reducing type, and its small end is the end of multiple card means of press seals formula structure, and the other end is an outside thread 10.

As Fig. 8 and shown in Figure 9, the described stainless steel joint for pipeline 1 tube body the other end is outside thread 11 or internal thread; Described stainless steel joint for pipeline 1 tube body can be straight tube, 45 ° of bend pipes or 90 ° of bend pipes.

As Figure 10, Figure 11, Figure 12 and shown in Figure 13, described stainless steel joint for pipeline 1 tube body is threeway branch pipe or equal tee or reducing tee; The threeway branch pipe mouth of pipe of described stainless steel joint for pipeline 1 is the end of outside thread or internal thread or multiple card means of press seals formula structure.

Described stainless steel joint for pipeline 1 tube body is straight cross or reducing cross.

The utility model adopts multi-sealed and the structure that is connected, and makes sealability and connectivity robustness obtain sufficient assurance, and this structural design is simple, easy processing, the easy row of connecting part.

Claims

1, a kind of thin metallic tubd quick-acting pressing joint, comprise pipe joint (1) body, it is characterized in that: the inwall of at least one end of described pipe joint (1) is by lining and the outer fixedly bulge loop card pressure mouth (6) of bulge loop groove (5) and pipe joint (1) port of a circle that radially one of protuberance circle sealing bulge loop groove (8), pipe joint (1) inwall radially swell that is disposed with on interior shoulder hole (4), the interior shoulder hole (4), described sealing bulge loop groove (8) is no less than one, and constitutes the end of multiple card means of press seals formula structure with this.

2, a kind of thin metallic tubd quick-acting pressing joint according to claim 1 is characterized in that: described sealing bulge loop groove (8) the inside is provided with O RunddichtringO (9).

3, a kind of thin metallic tubd quick-acting pressing joint according to claim 1 is characterized in that: fixedly bulge loop groove (5) wall of described pipe joint (1) is radially by lining and outer expansion.

4, a kind of thin metallic tubd quick-acting pressing joint according to claim 1 is characterized in that: the body bulge loop card of described pipe joint (1) presses mouthful (6) and fixing bulge loop groove (5) that angle is arranged.

5, a kind of thin metallic tubd quick-acting pressing joint according to claim 1, it is characterized in that: described pipe joint (1) the tube body the other end is the end of multiple card means of press seals formula structure, and described pipe joint (1) tube body is straight tube, 45 ° of bend pipes or 90 ° of bend pipes.

6, a kind of thin metallic tubd quick-acting pressing joint according to claim 1 is characterized in that: described pipe joint (1) tube body is decompression reducing type, and its small end is the end of multiple card means of press seals formula structure.

7, a kind of thin metallic tubd quick-acting pressing joint according to claim 1 is characterized in that: described pipe joint (1) the tube body the other end is outside thread or internal thread.

8, a kind of thin metallic tubd quick-acting pressing joint according to claim 7 is characterized in that: described pipe joint (1) tube body is straight tube, 45 ° of bend pipes or 90 ° of bend pipes.

9, a kind of thin metallic tubd quick-acting pressing joint according to claim 1 is characterized in that: described pipe joint (1) tube body is threeway branch pipe or equal tee or reducing tee or straight cross or reducing cross.

10, a kind of thin metallic tubd quick-acting pressing joint according to claim 9 is characterized in that: the threeway branch pipe mouth of pipe of described pipe joint (1) is the end of outside thread or internal thread or multiple card means of press seals formula structure.