CN201003669Y

CN201003669Y - Pipe coupling for connecting plastic pipes

Info

Publication number: CN201003669Y
Application number: CNU2006201133919U
Authority: CN
Inventors: 孔令忠; 张建发; 孙胜春; 吴玉瑞
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-30
Filing date: 2006-04-30
Publication date: 2008-01-09
Anticipated expiration: 2016-04-30

Abstract

The utility model provides a new pipe joint for connecting the plastic pipe that pertains to the technical field of plastic pipe joint and aims to solve the problems that the prior plastic pipe joint has a low strength and bad pressure resistance and seal performance. The utility model comprises a connecting pipe sleeve, an O-shaped sealing ring, a gasket ring and an elastic snap spring. The connecting pipe sleeve is provided with a flute that is arranged in the pipe orifice at the two ends, while the flutes of the connecting pipe sleeve are embedded and connected with the elastic snap spring respectively. Two pairs of butting head parts of the plastic pipe connected in the connecting pipe sleeve are made into the pipe with cambered and extensional convex elbow. The extensional circular arc of convex elbow of the plastic pipe is sheathed with the O-shaped sealing ring that is sheathed with the connecting pipe sleeve. The gasket ring is assembled on the plastic pipe arranged between the O-shaped sealing ring and the elastic snap spring in the connecting pipe sleeve. The utility model is novel in structure and tight in connection and has good pressure resistance and seal performance and a wide applicable scope, but also is simple for assembling and connecting and is suitably used for connecting diverse plastic pipes such as PVC pipe and PE pipe at various terrains.

Description

The new tube joint that connects plastic tube

Technical field

The utility model relates to a kind of pipe joint that connects plastic pipe.

Background technique

Along with the continuous development and the extensive use of plastic pipe, being showing improvement or progress day by day of agricultural water conservancy construction especially, applied plastic pipe connected element also needs continuous raising.In known technology, existing plastic pipe connect that main pipe sleeve thread connector, enlarging grafting, the mouth of pipe that adopts welds relatively or sleeve pipe in add seal ring and connect, limit by its linkage structure, it is low to exist the joint join strength, withstand voltage and sealing is poor, and processing or install loaded down with trivial details, time-consuming, inefficiency is also made troubles to use.

Summary of the invention

In order to overcome the deficiency of prior art, in order to solve the problem of low, the withstand voltage and sealing difference of the existing pipe joint intensity that connects plastic tube, the utility model provides a kind of novel structure, connect closely, withstand voltage and good airproof performance, applied widely, join the simple and easy novel plastics pipe joint easy to use of connection.

The technological scheme that its technical problem that solves the utility model adopts is:

A kind of new tube joint that connects plastic tube, it is provided with: take over overcoat, O RunddichtringO, gasket ring, elastic circlip, described adapter overcoat is the adapter overcoat that mouth of pipe inside, two ends is shaped on groove, taking in the groove of overcoat respectively, embedding connects elastic circlip, taking over the plastic tube two butt joint heads that connected in the overcoat is the tubing of making arc extension male bend head, male bend head extension circular arc place at plastic tube interlocks the O RunddichtringO, the O RunddichtringO again with take over overcoat and be connected, in the adapter overcoat on the plastic tube between O RunddichtringO and the elastic circlip load gasket ring.

The new tube joint of above-mentioned connection plastic tube, described adapter overcoat are that isometrical straight cylinder type is taken over overcoat.

The new tube joint of above-mentioned connection plastic tube, described adapter overcoat or adapter overcoat two end interfaces footpath are shaped on location dome ring in the middle part of slightly being Y type mouth, inner chamber, particle size mouth inside, two ends is shaped on the adapter overcoat that embedding connects the annular groove of elastic circlip respectively.

During use, required tubing is in succession put gasket ring earlier, the O RunddichtringO, and jointing made arc extension male bend head, join the extension circular arc that is connected in the plastic tube convex edge and form and be closely connected in that the O RunddichtringO is passed, simultaneously gasket ring is connected the location, make tubing little with adapter overcoat gap, make also that O type O-ring seal is stressed evenly to keep better elastic and sealability, in taking over overcoat, install elastic circlip again, the tube connector portion that is connected is inserted the adapter overcoat, at last elastic circlip is linked respectively in the groove of taking over overcoat, realize that two plastic tubes closely connect.Increased intensity because the tube connector place that is connected has made the extension arc along its root thickening, in use be difficult for rupturing, not yielding, improved working pressure in the pipe, prolonged the working life of pipe coupling.

Adapter overcoat of the present utility model or adopt two end interfaces footpaths slightly to be the adapter overcoat of Y type mouth, the adapter overcoat inner chamber middle part of two ends Y type mouth produces location dome ring, make the tubing of the company of inserting accurately to locate, avoid tubing offside or not in place effectively to inserting appearance, make and be connected closely, in taking over the two ends Y type mouth of overcoat, be shaped on the annular groove embedding elastic circlip of ining succession respectively, at the load O of the reducing aditus laryngis portion RunddichtringO of taking over overcoat, load gasket ring between seal ring and the elastic circlip.During use, the tubing of required connection is as head and play a platform, and the former pipe of tubing can directly be inserted to link and take over the middle location dome ring of overcoat and positioned with jump ring by seal ring, gasket ring and be connected.

Because technique scheme has been adopted in the utility model design, effectively solved the problem of low, the withstand voltage and sealing difference of the pipe joint intensity of existing connection plastic tube, through testing on probation showing for several times, it compared with prior art, has novel structure, connect closely, withstand voltage and good airproof performance, applied widely, installation join connect simple and easy, work efficiency is high, saving of work and time, advantage such as easy to use, being applicable to the connection of various plastic pipes such as pvc tube, vinyl tube in various landform, is a kind of novel joint for plastic tube.

Description of drawings

Below in conjunction with drawings and Examples the utility model is described in further detail.

Fig. 1 is the utility model one embodiment's concrete structure figure.

Fig. 2 is another embodiment's of the utility model concrete structure figure.

Number in the figure is: 1, take over overcoat, and 2, the O RunddichtringO, 3, gasket ring, 4, elastic circlip, 5, plastic tube, 6 location dome rings.

Embodiment

Consult accompanying drawing 1, the utility model is provided with: take over overcoat 1, O RunddichtringO 2, gasket ring 3, elastic circlip 4, described adapter overcoat 1 is the adapter overcoat that mouth of pipe inside, two ends is shaped on groove, taking in the groove of overcoat 1 respectively, embedding connects elastic circlip 4, taking over 5 liang of butt joints of the plastic tube head that is connected in the overcoat 1 is the tubing of making arc extension male bend head, male bend head extension circular arc place at plastic tube interlocks O RunddichtringO 2, O RunddichtringO 2 again with take over overcoat 1 and be connected, in adapter overcoat 1 on the plastic tube 5 between O RunddichtringO 2 and the elastic circlip 4 load gasket ring 3.

Consult accompanying drawing 1, adapter overcoat 1 described in the utility model is that isometrical straight cylinder type is taken over overcoat.

Consult accompanying drawing 2, adapter overcoat 1 described in the utility model is to take over overcoat two end interfaces footpath to be slightly that Y type mouth, inner chamber middle part are shaped on location dome ring 6, particle size mouth inside, two ends is shaped on the adapter overcoat that embedding connects the annular groove of elastic circlip 4 respectively.During use, the tubing of required connection is as head and to play its two butt joint of platform be former pipe joint, or grinds the slope mouth for ease of installation, just can directly insert to link the middle location dome ring of adapter overcoat and positioned with jump ring by seal ring, gasket ring and be connected.

Claims

1, a kind of new tube joint that connects plastic tube, it is provided with the adapter overcoat, the O RunddichtringO, it is characterized in that, also be provided with gasket ring (3), elastic circlip (4), described adapter overcoat is the adapter overcoat (1) that mouth of pipe inside, two ends is shaped on groove, taking in the groove of overcoat (1) respectively, embedding connects elastic circlip (4), taking over plastic tube (5) the two butt joint heads that connected in the overcoat is the tubing of making arc extension male bend head, male bend head extension circular arc place at plastic tube interlocks O RunddichtringO (2), O RunddichtringO (2) is connected with adapter overcoat (1) again, and the plastic tube (5) that is positioned in taking over overcoat (1) between O RunddichtringO (2) and the elastic circlip (4) is gone up load gasket ring (3).

2, the new tube joint of connection plastic tube according to claim 1 is characterized in that, taking over overcoat (1) is that isometrical straight cylinder type is taken over overcoat.

3, the new tube joint of connection plastic tube according to claim 1, it is characterized in that, take over overcoat (1) and be and take over overcoat two end interfaces footpath and be slightly that Y type mouth, inner chamber middle part are shaped on location dome ring (6), particle size mouth inside, two ends is shaped on the adapter overcoat that embedding connects the annular groove of elastic circlip (4) respectively.