CN2539894Y

CN2539894Y - Hooping type flexible pipeline joint

Info

Publication number: CN2539894Y
Application number: CN 01241008
Authority: CN
Inventors: 薄文海; 李宗鹏; 何江
Original assignee: JINDA ALUMINIUM-PLASTICS COMPOSITE PIPE Co Ltd
Current assignee: JINDA ALUMINIUM-PLASTICS COMPOSITE PIPE Co Ltd
Priority date: 2001-04-04
Filing date: 2001-04-04
Publication date: 2003-03-12
Anticipated expiration: 2011-04-04

Abstract

The utility model relates to a hooping type flexible pipeline joint, which comprises a pipe joint core tube and a throat hoop. The structure of the utility model is that a drum-shaped junction surface is arranged on the outer wall of the joint core tube, a vertical step is formed between the junction surface and the joint pipe with a bigger outside diameter. The throat hoop is a ring-shaped pipe hoop, and the externals of the two ends of the pipe hoop have a strengthen groove, a lock catch with pawl is formed on one side of the pipe hoop, a locking jaw is on the outside of the pipe hoop, the throat hoop is just suited on the outside of the connected pipe head. A double hoop structure is adopted for the tightening, when the throat of the core tube joint is frapped by the pressure of professional tool, a plastic nature morphing is generated on the joint surface of the external of the joint of the connected pipe, the joint core tube, the connected pipe and the throat hoop are integrated. The utility model is suitable for the connection of plastic pipe or pex-al-pex pipe, and the utility model has the advantages of simple arrangement, high strength, good sealing and easy processing, etc.

Description

Hooping type flexible pipe joint

Technical field

The utility model relates to a kind of pipe coupling, is adapted at installing and using on the aluminium-plastic composite pipe.

Background technique

At present, in some water system pipes, most aluminium-plastic composite pipes that adopt are comparatively economical, and the one, health, the 2nd, economical and practical, generally all adopting the thread type jointing when pipeline connects, is a kind of old-fashioned pipe joint, and its deficiency is a complex structure, the cost height, disadvantage is a poor sealing performance, and time one length has leakage phenomenon to take place, and gives and uses, keeps in repair and bring very big difficulty.

The model utility content

For solving the deficiency of above pipe joint structure, the purpose of this utility model provides a kind of hooping type flexible pipe joint, utilizes that larynx hoop and joint pressing structure are realized being connected firmly, the purpose of good sealing effect.

The utility model structural design is achieved in that this pipe joint forms (as shown in Figure 1) by joint core pipe and larynx hoop two-part, and its middle joint core tube wall is provided with the circle drum junction plane, forms perpendicular steps between the big slightly joint caliber of junction plane and external diameter; The larynx hoop is an annular pipe collar, larynx hoop two ends outer lateral is to having strengthening groove, form the snap close that has pawl in the one side, the pipe collar outside is the locking jaw, the larynx hoop tightly is enclosed within the outside of being taken over head just, and for the two cuff structures of fastening employing, the larynx hoop outside the core pipe joint is after the pressure that is subjected to special tool tightens up, the junction plane place of the joint outer wall of being joined two pipes together produces plastic deformation, makes joint core pipe and is become one by jointed tubular workpieces and larynx hoop.

Advantage of the present utility model: simple in structure, utilize the special tool pressing after, in conjunction with firmly, the intensity height has simple installation, good sealing effect and is easy to advantage such as processing.

Description of drawings

The utility model detailed structure is provided by following examples and accompanying drawing.

Fig. 1 is a hooping type flexible pipe joint structure schematic diagram.

Fig. 2 is that hooping type flexible pipe joint connects the back sectional drawing.

Fig. 3 is that hooping type flexible pipe joint connects back larynx cuff structure figure.

Embodiment

Its structure is by shown in the accompanying drawing, and 1 is joint core pipe, and outside 1A is the circle drum junction plane, 2 is the larynx hoop, and top 2A is a strengthening groove, and is indeformable after the pressing, side 2B, 2C are snap close, adjustment internal diameter size, 3 for to be taken over, during use, owing to be provided with the circle drum junction plane at the pipe fitting joint core tube wall, after the outer larynx hoop of pipe fitting joint core pipe was stressed and shrinks, the circular arc junction plane place of being joined two pipes together at the pipe fitting joint outer wall produced plastic deformation, forms higher intensity and better seal effect.

Claims

1. hooping type flexible pipe joint, it is characterized in that: this pipe joint is made up of joint core pipe (1) and larynx hoop (2) two-part, its middle joint core pipe (1) outer wall is provided with the circle drum junction plane, forms perpendicular steps between the big slightly joint caliber of junction plane and external diameter; Larynx hoop (2) is an annular pipe collar, larynx hoop two ends outer lateral is to having strengthening groove (2A), the one side form have pawl snap close (2B) (2C), the pipe collar outside is the locking jaw, the larynx hoop tightly is enclosed within the outside of being taken over head just, for the two cuff structures of fastening employing.