CN2042145U - Fast-selflocked flexible pipe joint - Google Patents

Abstract

The utility model provides a fast-selflocked flexible pipe joint which comprises a pressure bearing ring and two sealing rings. So long as the joint is sheathed on both ends of pipes, the utility model can be used. The fast-selflocked flexible pipe joint is characterized in that the fast-selflocked flexible pipe joint has fast installation, self locking, definite flexibility, shock prevention and noise transmission prevention. The utility model has the advantages of low cost and wide purpose. The fast-selflocked flexible pipe joint can be made into various pipe joints, such as elbows, through pipe joints, three-way pipe joints, four-way pipe joints, etc. besides, the fast-selflocked flexible pipe joint is practically applied to various pipelines.

Description

Fast-selflocked flexible pipe joint

The utility model relate to a kind of install fast, can self-locking and be rich in certain flexibility, shockproof and pipe joint that dismounting is also fast.

Existing pipe joint all needs the mouth of pipe to handle, as hitch or welding etc.; All need tighten screw thread, as pipe screw thread or bolt screw thread etc.No matter be general joint, or rapid pipe joint, or flexible joint, cost is high and time-consuming, to using equal inconvenience.

The purpose of this utility model is: provides a kind of as long as pipe is inserted joint, just can use, and fast self-locking flexible pipe joint that need not other constructions.

The purpose of this utility model is finished as follows:

The two ends of rubber pipe are simmered into, promptly form two y RunddichtringOs of position in opposite directions at the two ends of sebific duct, embryo of the present utility model that Here it is, actual fabrication just must be used the way of mould heat pressure moulding certainly, simultaneously for good seal, the sealing configuration of form such as y type should be arranged.In order to lock certainly, with pipe be close to the place should have enough friction, this design formula be hf＞1/2 rp wherein: γ is a sealing part pipe radius, h is that y is sealed in the axial direction height, p is a fluid pressure, f is the friction of sealing surface and pipe, and the increase of f is to water way with sand material such as carborundums with the pipe surface of contact.For pressure-bearing is good, should increase the cloth number of plies, or with Woven Steel Fabric or with reinforcing bar etc.

Accompanying drawing 1 is the longitudinal sectional drawing of a kind of concrete structure of the utility model I type.

Accompanying drawing 2 is longitudinal sectional drawings of a kind of concrete structure of the utility model II type.

Below in conjunction with description of drawings details of the present utility model:

Becoming in opposite directions by pressure-bearing circle (1) and two ends thereof, two y RunddichtringOs (2) of position constitute this joint.Be provided with multi-turn seal convexity (2a) in the y sealing with the pipe contacting point, with enhanced leaktightness, and the multi-turn sealing concave surface (2b) that waters sand material such as carborundum, to strengthen friction.Center two y seal clearances stay for a short time in joint, make the impurity fluid be difficult for deposition.Its I type is a glue bag bone formula, adopts way such as hot-forming to be cast as one.The II type is a bone encapsulate formula, and pressure-bearing circle and seal ring are processed respectively, the interior edge face coating adhesive at the joint two ends when assembling sticks to one.

Below in conjunction with description of drawings working condition of the present utility model:

When pipe is inserted into the neutral position from the joint two ends,, itself just have certain natural sealability and self-lock ability because the inner cone of y sealing can be close on the pipe joint; But owing to be to utilize seal, the pressure that certain distortion is produced, so its power is less, thereby installing/dismounting is all easy.When having fluid to flow through in the pipe and pressure when increasing gradually, the fluid that leaks at two pipe joint places will be exerted pressure on the outer cone of y sealing, increase along with fluid pressure, the pressure that the y sealing imposes on pipe also increases, and sealability and self-lock ability also increase thereupon, plays sealing and self-locking action.

Can be made into patterns such as elbow, threeway, four-way for adapting to multiple needs,, can select corrosion-resistant and resistant to elevated temperatures sealing material for use for adaptation contains corrosive fluid and high temperature fluid,

Claims (3)

1, a kind of need insert pipe just and can use, and need not the fast self-locking flexible pipe joint of other constructions.It is characterized in that: the pressure-bearing circle [1] and the two ends thereof that have bearing structure become the structure of two y-type seal rings [2] composition of position in opposite directions.The I type is a glue bag bone formula structure, and the II type is a bone encapsulate formula structure.

2, according to the described pipe joint of claim 1, it is characterized in that: y sealing (2) has the inside and outside garden conical surface, with inner conical surface that pipe contacts on multi-turn seal convexity (2a) is arranged, and the multi-turn of watering sand material such as carborundum seals the structure of concave surface (2b).

3, according to claim 1 described pipe joint, it is characterized in that: the design of self-lock force is with following formula: hf＞1/2 rp.

Wherein h is the height of y sealing axial direction, and f is the friction of sealing surface and pipe, and r is the radius of sealing surface place pipe, and p is the pressure of fluid.

Images