CN2280194Y

CN2280194Y - Joint for hose

Info

Publication number: CN2280194Y
Application number: CN97235687U
Authority: CN
Inventors: 刘效明
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-04-07
Filing date: 1997-04-07
Publication date: 1998-04-29
Anticipated expiration: 2007-04-07
Also published as: AU3845797A; WO1998045639A1

Abstract

The utility model discloses a joint for a hose, which is composed of an inner tube, an outer pipe, a gasket and a joint nut. The hose is squeezed and sheathed on the inner tube; the outer pipe is sheathed out of the inner pipe and the hose connected with the inner pipe through threads; one end of the inner pipe is provided with the joint nut; the whole joint is connected with a hard pipe through the joint nut. The utility model solves the problems of no firmness and easy damage and leakage of the conventional joint for the hose and has the advantages of convenient connection, high safety and beautiful appearance.

Description

Hose coupling

The utility model relates to a kind of hose coupling.

Many equipment need connect flexible pipe in the actual life, gas water-heater for example, solar water heater, gas ring etc.And existing connecting means only is flexible pipe to be squeezed be enclosed within outside the hard tube.This mode exists following defective, and therefore the easy impaired cracking of the flexible pipe of first connection part and cause leakage uses dangerous.It two is hard tube diameters that the inner chamber of flexible pipe generally is less than the joint, so connect inconveniently, particularly is being subjected under the restrictive condition in space, be difficult for tube socket outside hard tube, its three, flexible pipe connects insecure, easily comes off, the joint overall appearance is not attractive in appearance.

The purpose of this utility model just be to provide a kind of make flexible pipe can be convenient, firmly, and the leak connected hose coupling on other pipe fitting of cracky not.

The purpose of this utility model is achieved in that it is made of interior pipe, outer tube, collar nut, packing ring, and outer wall of inner tube and outer tube wall have the internal and external threads that is complementary, and outer tube tightly is enclosed within outside the interior pipe by screw thread; Interior Guan Yitou has the collar nut of band internal thread, and external diameter of pipe is less than outer tube diameter 1～8MM in the part of other end.

The utility model can be provided with ring washer at interior Guan Yitou, collar nut wears on inner pipe and is spacing by ring washer, the various pipe fittings of the tapered socket so easily of the other end outer wall of inner tube relative with collar nut can also be designed to interior pipe the pipe fitting of elbow in addition for the needs that satisfy different occasions.

During use, earlier nut is worn on inner pipe, outer tube is set on the flexible pipe head, flexible pipe is squeezed to be enclosed within on the less interior pipe of external diameter again, subsequently outer tube is tightened on inner pipe, at last collar nut is tightened in the hard pipe joint place.So just finished installation process of the present utility model, flexible pipe and hard tube couple together securely.

The utility model relatively has following good effect with conventional art: (1) is by flexible pipe and interior pipe taper combined extrusion, make the tube socket part stressed evenly, easy damaged does not ftracture, again owing to there is outer tube to be enclosed within whole flexible pipe by packing ring is airtight, outside the interior pipe, be difficult for leaking, guaranteed connection safety.Only need tighten collar nut and outer tube when (2) the utility model connects, thereby easy and simple to handle, not be subjected to the restriction in place, space, have simultaneously and be connected firmly the characteristics of difficult drop-off.(3) interior pipe of the present utility model can be designed to the elbow shape, thereby can use on numerous equipment such as kitchen guarding, chemical industry, automobile, medical treatment, and suitable application area is wide.(4) be an integral body during the utility model working state, both protected to be enclosed within the parts top hose and not weather, the outer tube configuration design can be become various moulding again, satisfy the requirement on vision or the function.

Below by way of embodiments and drawings the utility model is described further.

Fig. 1 is embodiment's inner tube structure schematic representation.

Fig. 2 is embodiment's outer tube structure schematic representation.

Fig. 3 is a pipe outline drawing in another embodiment.

Among Fig. 1, have outside thread 2, one ends that the back-up ring 5 of protrusion is arranged on the outer wall of interior pipe 1, the tube wall 3 of other end is certain taper, in being set on, the collar nut 4 of band internal thread 7 manages in 1, and spacing by back-up ring 5, rubber washer 6 is arranged in the nut.

Among Fig. 2, outer tube 11 inwalls have internal thread 8, two has that the outside thread 2 on the pipe 1 and the internal thread 8 on the outer tube 11 mate in the rubber washer 9,10, during use, outer tube 11 is set on earlier on the flexible pipe, flexible pipe is squeezed be enclosed within on the position of tube wall 3 again, because tube wall 3 has certain taper, therefore the flexible pipe of different wall all can squeeze and overlap on it, on pipe 1 and the flexible pipe, tightens and can form an integral body in then outer tube 11 being set on.At last collar nut 4 is connected on the hard pipe joint place that will connect.Because the effect of rubber ring 6,9,10, all joints are all sealed, and whole joint is difficult for leaking.

Fig. 3 manages outline drawing in one.Between interior pipe 1 and the collar nut 4 place's elbow 12 is arranged, can satisfy the needs of some special occasions like this.Shower nozzle such as shower just can utilize this kind structure, and the outer tube profile of being joined can be designed to handle-shaped.

Claims

1, hose coupling, by interior pipe (1), outer tube (11), collar nut (4), packing ring constitutes, and it is characterized in that:

Interior pipe (1) outer wall and outer tube (11) inwall have internal and external screw thread (2), (8) that are complementary, outer tube (11) tightly is enclosed within outside the interior pipe (1) by screw thread (2), (8), (1) collar nut (4) that band internal thread (7) are arranged of interior pipe, pipe (3) external diameter is less than outer tube (11) internal diameter 1～8mm in the part of other end.

2, hose coupling according to claim 1, its feature also is: (1) one of interior pipe is provided with back-up ring (5), and collar nut (4) is set on the interior pipe (1).

3, hose coupling according to claim 1, its feature also is: the outer wall (3) of pipe (3) is tapered in the other end relative with collar nut (4).

4, hose coupling according to claim 1, its feature also is: interior pipe (1) is for there being the pipe fitting of elbow (12).