CN2503299Y

CN2503299Y - Special pipe joint for aluminium-plastic composited pipe

Info

Publication number: CN2503299Y
Application number: CN 00247187
Authority: CN
Inventors: 李广生; 张峰
Original assignee: Individual
Current assignee: Zhang Feng
Priority date: 2000-08-10
Filing date: 2000-08-10
Publication date: 2002-07-31
Anticipated expiration: 2010-08-10

Abstract

The utility model discloses a tube union for the aluminum plastic laminated tube including that: a union shell is proceed with thin stainless steel with; a stainless steel core tube 2 with thin wall having a skid resistance flute is arranged inside the shell 1; a fixing screw thread sleeve 3 is blocked between the shell and the core tube to form the union body; a tube waiting for connecting 6 is arranged between the fixing screw thread tube and the core tube 2; a flower type hatch case 5 with a taper is blocked between the fixing screw thread tube 3 and the tube waiting for connecting 6; a movable screw thread sleeve 4 is matched with the fixing screw thread sleeve 3 through a screw and is winded between the fixing screw thread tube 3 and the tube waiting for connecting 6 and presses the hatch case 5. The tube union of the utility model avoids leakage without any rubber sealing ring.

Description

A kind of aluminium-plastic composite pipe dedicated pipe joint

The utility model relates to plastic-aluminum combined pipe connection.

The aluminium-plastics composite pipe joint that uses adopts the sealing of O RunddichtringO more now, and aluminium plastic composited tube is easy to generate leakage when being connected with ordinary couplings.Relevant with the structure and the manufacturing process of composite pipe, aluminium plastic composited tube is a heat processing and forming, and diameter can change under external force.Metallic aluminium is combining of a kind of physical form with the combination of plastics, and therefore when being subjected to external force effect generation distortion, aluminium and plastics can layerings.When ordinary couplings is connected with it, main O RunddichtringO sealing by contacting with the composite pipe inwall, when composite pipe inwall and seal ring excesssive gap, must make the composite pipe distortion just can compress seal ring, this has just stayed hidden danger, the plastics of extrusion are aging easily, and the composite pipe of aging layering leaks easily.

The purpose of this utility model will provide a kind of leak free aluminium-plastics composite pipe joint exactly.

The purpose of this utility model be achieved in that the utility model by joint shell, the band anti-slip tank the core pipe, place shell, tail end has screw thread, the tapered retaining thread sleeve combination of front end endoporus becomes adapter body.Wait to take over and place between retaining thread sleeve pipe and the core pipe, the shape opening sleeve plug of blooming of band tapering is in the retaining thread cover and in the slit that forms between waiting to take over, the movable whorl cover that the outer end has screw thread is placed on the retaining thread sleeve pipe and waits to take over it, be threaded onto retaining thread cover tail end with the screw-thread fit form, and opening sleeve is pressed in retaining thread sleeve pipe front end taper type endoporus with wait to take between in the slit of formation.

The utlity model has following advantage: beautiful shape, intensity height, corrosion-resistant, good seal performance.Built-in screw thread makes external form level and smooth, is more suitable for internal wall finishing.

The utility model is described in further detail below in conjunction with accompanying drawing and embodiment:

Fig. 1 is the positive sectional structure schematic representation of the utility model straight joint;

Fig. 2 is the side view of the utility model straight joint;

Fig. 3 is the enforcement illustration of the utility model tee union;

Fig. 4 is the enforcement illustration of the utility model elbow connection;

Fig. 5 is the utility model shell mechanism schematic representation;

Fig. 6 is the utility model core arrangement schematic representation;

Fig. 7 is the structural representation of the utility model retaining thread sleeve pipe;

Fig. 8 is the positive view of the utility model movable whorl sleeve pipe;

Fig. 9 is the front view of the movable whorl sleeve pipe of draw-in groove shape spanner screens;

Figure 10 is the front view of the movable whorl sleeve pipe of hex wrench screens;

Figure 11 is the front view of the movable whorl sleeve pipe of another kind of spanner screens;

Figure 12 is the bloom sectional view of shape opening sleeve of the utility model;

Figure 13 is the bloom front view of shape opening sleeve of the utility model.

As shown in Figures 1 to 4, joint shell 1 is combined into adapter body by thin-wall stainless steel machine shaping and thin-wall stainless steel core pipe 2 and the retaining thread sleeve pipe 3 of being with anti-slip tank.Behind the assembling aluminium-plastic composite pipe, during rotary moveable threaded sleeve 4, shape opening sleeve 5 diameters of blooming of band tapering can shrink, and make to wait to take over 6 and closely combine with main body core pipe, form a kind of leak free connection set.

Shell 1 and inner core 2 are by thin-wall stainless steel machine shaping.As Fig. 5, Fig. 6.Retaining thread sleeve pipe 3 is by metal or engineering plastics machine shaping.Can be whole, as Fig. 7, also can be the separate component combination.Movable whorl sleeve pipe 4 is by metal or engineering plastics machine shaping, and screw thread cooperates with retaining thread sleeve pipe 3.Its spanner screens can be draw-in groove, also can be hexagonal or other shapes; As Fig. 8, Fig. 9, Figure 10, Figure 11, the tapering of the shape opening sleeve 5 of blooming and the taper fit of retaining thread sleeve pipe 3 are for the shape opening sleeve 5 of blooming easy to process can be one with movable whorl sleeve pipe 4.The utility model can be a straight joint, also can be elbow, different from joint or tee union and cross fitting.The interface size of joint matches with the mouth of pipe size of all size that uses now, and the material of coupled pipe can be any tubing that uses now.But with other flexible material the bests such as aluminium plastic composited tubes.

Claims

1, a kind of aluminium-plastic composite pipe dedicated pipe joint, by joint shell, the thin-wall stainless steel core pipe of band anti-slip tank, contract is gone into the retaining thread pipe of combination, the movable whorl sleeve pipe, the shape opening sleeve of blooming of band tapering constitutes, it is characterized in that: joint shell (1) is by thin-wall stainless steel machine shaping, the thin-wall stainless steel core pipe (2) of band anti-slip tank places shell (1), tail end has internal thread, retaining thread sleeve pipe (3) cutting ferrule that the front end endoporus is taper type is combined into adapter body between shell (1) and core pipe (2), waiting to take over (6) places between retaining thread sleeve pipe (3) and the core pipe (2), the shape opening sleeve (5) of blooming of band tapering is filled in retaining thread sleeve pipe (3) and is waited to take in the slit that forms between (6), the movable whorl sleeve pipe (4) that the outer end has screw thread places retaining thread sleeve pipe (3) and waits to take between (6), be tightened in retaining thread sleeve pipe (3) tail end with the screw-thread fit form, and opening sleeve (5) be pressed in retaining thread sleeve pipe (3) front end taper type endoporus and wait and take in the slit that forms between (6).