CN2560807Y

CN2560807Y - Rapid assembled pipe fitting

Info

Publication number: CN2560807Y
Application number: CN 02242899
Authority: CN
Inventors: 杜洲
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-07-26
Filing date: 2002-07-26
Publication date: 2003-07-16
Anticipated expiration: 2012-07-26

Abstract

A pipe connecting piece is a fast assembled pipe connecting piece used as a connecting piece in the pipeline for delivering liquid and gas, which comprises an adapter body with an external screw thread and a connecting nut with an internal screw thread and is particularly suitable for using in the sealing connection of a plastic pipe, a metal tube and all composite tubes. The connecting nut is connected with the adapter body. The utility model is characterized in that a diverging pattern opening is arranged outward at a terminal port of the adapter body, a cone seal ring and an elastic self tightening closing ring with an annular cuspis are disposed between the adapter body and the connecting nut and both of which can produce elastic deformation through the acting force produced by the connection of the adapter body and the connecting nut, so that the adapter body and the connected pipe can connect with each closely and sealed firmly. The utility model has the advantages of large range of application, simple structure, firm and fast assembly, good sealing performance, large caliber, good fluid steering ability and is suitable for using in the connection of all pipelines.

Description

A kind of fast-assembling pipe connector

Affiliated technical field

The utility model relates to a kind of pipe connector, is particularly suitable for the middle use that is tightly connected mutually at plastic tube, metal tube, various composite pipes, is to be used for carrying in the pipeline of liquids and gases connecting a kind of fast-assembling pipe connector that part uses.

Background technique

In existing production and living environment, pipe connector is various in style, is widely used.But it is loaded down with trivial details that some pipe connector is installed, and poor sealing performance has the seepage situation and takes place, and because design and installation, the pipe connector internal diameter often less than being connected the tubing internal diameter, has influence on its function of use and working life.

Summary of the invention

The purpose of this utility model is at the various defectives of above-mentioned pipe connector, provides a kind of installation fast firmly, good seal performance, and the pipe connector internal diameter is more than or equal to a kind of novel fast-assembling pipe connector of connected tube internal diameter.

The utility model comprise one with externally threaded fittings body with one in it tapped attaching nut who is connected.It is characterized in that the fittings body port has outside horn-type opening, the prominent elasticity self-tightening collar of conical seal ring and band shape point is arranged between fittings body and the attaching nut, active force when both are connected with the attaching nut by fittings body, produce resiliently deformable, fittings body tightly is connected mutually with connected tube, and sealing firmly.

During use, earlier put attaching nut, elasticity self-tightening collar and conical seal ring successively in the connected tube termination, the connected tube termination is inserted in the fittings body port, positioning step until fittings body inside, slowly screw the attaching nut, the power that screws during by connection makes elasticity self-tightening collar produce distortion, make the prominent compressing of the ring-type point connected tube outer wall of its internal surface, and inlay and wherein do closely to connect, also oppress simultaneously conical seal ring, make its distortion and be close to the connected tube outer wall, play the effect of sealing.

The beneficial effects of the utility model are, and are applied widely, simple in structure, install firmly quick, good seal performance, bore is big, the fluid passing ability is good, suits to use in various pipelines connect.

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

Fig. 2 is the structural representation and the A-A view of elasticity self-tightening collar.

Fig. 3 is the structural representation and the A-A view of conical seal ring.

Fig. 4 is the structural representation of the utility model embodiment one.

Fig. 5 is the structural representation of the utility model embodiment two.

Fig. 6 is the structural representation of the utility model embodiment three.

Fig. 7 is the structural representation of the utility model embodiment four.

Below in conjunction with accompanying drawing embodiment of the present utility model is further described:

Connected tube (5) can be plastic tube, metal tube and various composite pipe.There is horn-type opening the connecting direction port of fittings body (1), and there is positioning step (8) port inside.Attaching nut (4) upper end endoporus is a taper hole, and the lower end is a screw.Two inclined-planes of conical seal ring (2) are parallel with the outer wall of bell-mouthed inclined-plane, fittings body port, connected tube (5) respectively.The two ends up and down of elasticity self-tightening collar (3) all are conical, respectively and attaching nut's (4) upper end taper hole and fittings body horn mouth cooperate, internal surface place, collar upper end has two prominent (6) lower ends of ring-type point that a ring-type point prominent (6) is arranged, whole collar has six openings (7) of evenly arranging, and opening is from top to bottom until prominent (6) top of lower end ring-type point.

Successively attaching nut (4), elasticity self-tightening collar (3), conical seal ring (2) are enclosed within on the connected tube (5) earlier, again connected tube (5) termination is inserted the positioning step (8) of fittings body (1) until inside, when tightening attaching nut (4), active force makes elasticity self-tightening collar (3) opening (7) closure, two ring-type points prominent (6) compressing connected tube (5) outer wall of upper end internal surface, and partly inlay wherein, reach purpose of connecting.Active force is passed to elasticity self-tightening collar lower end point prominent (6) downwards simultaneously, makes the sharp inner conical surface of dashing forward (6) in lower end compress the male cone (strobilus masculinus) of conical seal ring (2), makes it to be close to fittings body (1) horn mouth and connected tube (5) outer wall, plays the effect of sealing.Form structure of the present utility model is varied, can be Fig. 4 the straight-through cast of band internal thread, can be Fig. 5 straight bent tube type, can be Fig. 6 straight-through cast, can be the threeway cast of Fig. 7, also can be other different shapes, all there be outside thread the pipe connector end.

Claims

1, a kind of fast-assembling pipe connector comprises that one is attached thereto the tapped attaching nut (4) who connects with externally threaded fittings body (1) and one.It is characterized in that fittings body (1) port has outside horn-like opening, has conical seal ring (2) and elasticity self-tightening collar (3) between fittings body (1) and the attaching nut (4).

2, pipe connector according to claim 1, the two ends up and down that it is characterized in that elasticity self-tightening collar (3) all are conical, internal surface place, collar upper end has two prominent (6) lower ends of ring-type point that a ring-type point prominent (6) is arranged, whole collar has six openings (7) of evenly arranging, and opening is from top to bottom until prominent (6) top of lower end ring-type point.

3, pipe connector according to claim 1 is characterized in that between fittings body (1) and the connected tube (5) conical seal ring (2) being arranged.