CN2531224Y

CN2531224Y - Pressure-bearing resisting pipe joint

Info

Publication number: CN2531224Y
Application number: CN 01206767
Authority: CN
Inventors: 游剑林
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-07-06
Filing date: 2001-07-06
Publication date: 2003-01-15
Anticipated expiration: 2011-07-06

Abstract

The utility model relates to a pressure withstanding pipe joint which is suitable for various plastic lining aluminum pipes and aluminum plastic pipes. In order to overcome the defects of the existing direct insert type pipe joint that the existing direct insert type pipe joint needs to be provided with an open clip ring and a rubber sealing ring. Besides, the existing pipe joint has the defects of more complicated structure, high relative cost, unreliable joint connection which is caused by that the sealing ring is easy to become old, bad pressure withstanding performance, and easy seepage. An elastic clip ring is sleeved at the outer wall of two pipe joints which have matched calibers. A cone pad is correspondingly arranged at both ends of the elastic clip ring. An outer threaded joint and a nut are arranged out of the cone pad. Therefore, the utility model provides the advantages of simple structure, low cost, tight connection, good sealing performance, and good pressure withstanding performance.

Description

A kind of pipe joint of anti-the pressure-bearing

The utility model relates to a kind of pipe joint of anti-pressure-bearing that is applicable to various plastic lining aluminium pipes and plastic-aluminum pipe.

Existing pipe joint is direct insertion, need configuration slotted collar, rubber seal, structure is complicated, relative cost is just high, seal ring is easily aging to cause the connection of pipe joint not firm, bearing capacity is poor, easy to leak, between " a kind of pipe joint " pipe joint as Chinese patent 00223555.2 bulletin is concavo-convex identical connection, has the problem of above-mentioned easy to leak, bearing capacity difference too.

The utility model be to provide a kind of simple in structure, cost is low, connection is tight, good airproof performance, pipe joint that bearing capacity is big.

The utility model adopts following technology to achieve the above object: pipe joint two bores coincide and link to each other, both outer inipples, nut are fixed, at the pipe joint outer wall cover elastic collar of tubing, the corresponding attach taper pad in elastic collar two ends is loaded onto male connection and nut outside the awl pad.

The elastic collar two ends are external conical shape, and have and have the interlaced elongated slot of elasticity.

The awl pad is shaped as and the corresponding inner cone of elastic collar two ends angle of taper.

Elastic collar is that stainless steel material is made.

For better effect is in aggregates with tubing parts of plastics connecting part hot melt.

The origin cause of formation of the utility model good seal is: 1, when with nut screwing clamping, the inner cone pad at two ends is moved axially force elastic collar radial contraction with corresponding taper, utilize the principle that contracts in the bipyramid surface elastic, make pipe fitting outer wall and elastic collar inwall produce huge frictional force, to be connected into integral body by jointed tubular workpieces tightly, also increase the rigidity and the bearing capacity of joint simultaneously, overcome the seepage phenomenon, do not need any sealing material, reduced cost; 2, elastic collar is made of stainless steel, is difficult for wearing out, and has strengthened its sealing, and is safe and reliable.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the structural representation of the utility model pipe joint.

Fig. 2 is the structure enlarged diagram of the utility model elastic collar and awl pad

Consult Fig. 1 tubing 1 prune 5mm allow in plastics lined pipe expose, the tubing 1 that the method for employing hot melt butt joint will need to connect docks, at its joint outer wall cover stainless steel elastic collar 3, see that Fig. 2 elastic collar 3 two ends are external conical shape, and have and have the interlaced elongated slot of elasticity 6, the corresponding attach taper pad 5 in elastic collar 3 two ends, awl pad 5 is the corresponding inner conical of two ends angle of taper with elastic collar 3, load onto male connection 2 and nut 4 outside the awl pad, fastening nut 4 gets final product.

Claims

1, a kind of pipe joint of anti-pressure-bearing that is applicable to various plastic lining aluminium pipes and plastic-aluminum pipe, comprise tubing (1), male connection (2), nut (4), pipe joint two bores coincide and link to each other, both outer inipples (2), nut (1) are fixed, it is characterized in that: at its pipe joint outer wall cover elastic collar (3), the corresponding attach taper pad (5) in elastic collar (3) two ends is loaded onto male connection (2) and nut (4) outside the awl pad.

2, the pipe joint of anti-pressure-bearing the according to claim 1 is characterized in that: elastic collar (3) two ends are external conical shape, and have interlaced elongated slot (6).

3, the pipe joint of anti-pressure-bearing the according to claim 1 and 2 is characterized in that: awl pad (5) is shaped as and the corresponding inner cone of elastic collar (3) two ends angle of taper.

4, the pipe joint of anti-pressure-bearing the according to claim 1 and 2 is characterized in that: elastic collar (3) is made for stainless steel material.