CN201014105Y

CN201014105Y - Fitting

Info

Publication number: CN201014105Y
Application number: CNU2007200045402U
Authority: CN
Inventors: 李深智
Original assignee: Individual
Current assignee: Ningbo Lian Ying Engineering Plastics Hardwear Pty Ltd
Priority date: 2007-03-09
Filing date: 2007-03-09
Publication date: 2008-01-30
Anticipated expiration: 2017-03-09

Abstract

The utility model relates to a pipe joint, this pipe joint is to the portion of cup jointing that its one end extends to improve, make the portion of cup jointing of pipe joint can cooperate the binding hoop and form splendid airtight joint with external hose easily, the portion of cup jointing of this pipe joint has a plurality of adjacent sawtooth bulge loops that are the back taper, form one between two adjacent sawtooth bulge loops and can match the annular face that corresponds with the binding hoop, and then be equipped with the ringlet groove that one or more can supply the embedding of O ring on the annular face, make ringlet groove supply O ring embedding cover respectively to put, when external hose embolias this portion of cup jointing, can utilize the binding hoop tightly to encircle the binding hoop and bind in the ringlet groove face that matches the correspondence, with accomplish the airtight leak protection joint of pipe joint portion and external hose fast.

Description

Pipe joint

Technical field

The utility model relates to a kind of pipe joint design, particularly about the belled part of pipe joint one end extension and the airtight leakproof connected structure of external hose.

Background technique

Known GT tube joint, the for example common fire-fighting equipment that is used in, the extension body that air compressor or other particular device utensil provide gas or liquid to carry, the use of pipe joint is all indispensable member, mainly be to be one group with two corresponding in opposite directions pipe joints, so that relative bonding, one end of each pipe joint is an opening portion, the other end then is the belled part of an extension shape, opening portion can be provided with various enforcement structure or fastening device according to need, have a plurality of adjacent sawtooth bulge loops 102 (as shown in Figure 7) and the extension belled part 101 of pipe joint 10 is common, for being connected combination with an external hose, again two in opposite directions pipe joint be to form with corresponding opening portion to engage, the correspondence of known two pipe joint opening portions engages, also has multiple different gas-tight design, but pipe joint extends the combination that is connected of belled part and external hose, its airtight leak free design is also very important, as any seepage takes place, it connects purpose and promptly loses effect, so it is very important that the airtight leakproof of part connects, and can not be ignored certainly.

Above-mentioned known tubes joint, it extends the combination that is connected that belled part and external hose do, mostly be on the plural sawtooth bulge loop of this belled part, directly to be coated with one deck viscose in advance, again external hose is inserted in to finish and coheres, or install one again additional can be for the bundle hoop that closes of bundle, make external hose form lock ring and combine, to finish the connection combination of airtight leakproof with the extension belled part of pipe joint; Yet, above-mentioned mucigel is easy to take place the situation of viscose skewness when gluing, and this viscose will cause engaging bad in producing sclerosis or qualitative change day long afterwards unavoidably after a period of time, therefore can't be permanently effective keep airtight leak preventing effect, still dislike blemish in an otherwise perfect thing.

Summary of the invention

The purpose of this utility model is to provide a kind of pipe joint design, particularly execute improvement again in order to improve pipe joint extension belled part to engage with the airtight leakproof of external hose, can be fast and finish easily being connected of pipe joint belled part and external hose, form splendid airtight joint.

The purpose of this utility model is to realize like this, a kind of pipe joint, body one end of this pipe joint is the opening portion of a pin thread type or box type, the other end is a belled part of extending, this belled part has a plurality of adjacent sawtooth bulge loops that are inverted cone, the belled part of pipe joint is between two adjacent sawtooth bulge loops, forming one can be for being the corresponding annular groove face of coupling with a branch of hoop, and being provided with the little annular groove that one or more can embed for O shape ring in the annular groove face, O shape ring embeds and is placed on little annular groove.

From the above mentioned, pipe joint of the present utility model when external hose is inserted in the belled part, can utilizes the bundle banding tightly to encircle bundle and be incorporated into the corresponding annular groove face of coupling, thus can be fast and finish easily being connected of pipe joint belled part and external hose, form splendid airtight joint.

Description of drawings

Fig. 1 is the stereogram of the utility model pipe joint and the separated attitude of O shape ring gas.

Fig. 2 is the schematic perspective view that the utility model pipe joint and external hose combination are finished.

Fig. 3 embeds the sectional schematic diagram that is nested with O shape ring for the utility model in pipe joint.

Fig. 4 is the sectional schematic diagram that the utility model pipe joint and external hose combination are finished.

Embodiment's stereogram that Fig. 5 is composed of with male and female button-type pipe joint for the utility model.

Fig. 6 is provided with another embodiment's stereogram of screw thread in the pipe joint opening portion for the utility model.

Fig. 7 is the stereogram of known pin thread type pipe joint.

Embodiment

As shown in Figure 1, pipe joint 1 of the present utility model, one end of its body is an opening portion 11, the other end is a belled part 12 of extending, the enforcement structure of this opening portion 11 is also unrestricted, it can be embodied as shown in Figure 1 a pin thread type opening portion 11, maybe can be embodied as shown in Figure 5 a box type opening portion 11a, and this opening portion 11 or 11a also can be embodied as various known structure form or set up known fastening device 111a according to its purposes demand, and the material of body itself also is regardless of, and for example metal material, plastic material or other hard rigid material all can.

As shown in drawings, pipe joint 1 of the present utility model, described belled part 12 has a plurality of adjacent known sawtooth bulge loops 121 that are inverted cone, but particularly between two adjacent sawtooth bulge loops 121, further forming one can be for being the corresponding annular groove face 122 of coupling with a branch of hoop 2, the width of this annular groove face 122 is more than or equal to the band width of bundle hoop 2, and be provided with the little annular grooves 123 that one or more can embed for O shape ring 3 in annular groove face 122, little annular groove 123 is embedded for O shape ring 3 respectively to be nested with (as shown in Figure 3), when an external hose 4 is inserted in this belled part 12, can utilize bundle hoop 2 tightly to encircle bundle and be incorporated into the corresponding annular groove face 122 of coupling, engage (as Fig. 2 or shown in Figure 4) with the airtight leakproof of external hose 4 to finish pipe joint 1 belled part 12 fast.

As shown in Figure 5, announcement is composed of with a pin thread type pipe joint 1 and a box type pipe joint 1a's, two pipe joints 1, the opening portion 11 of 1a, 11a is snapping and form airtight combination mutually, but relate to pipe joint 1, the opening portion 11 of 1a, the structure of 11a is not an improvement target of the present utility model, and opening portion 11, the known fastening structure of 11a (as screwing togather or fasten or install quick buckling module) also has multiple different designs, i.e. embodiment as shown in Figure 6, this pipe joint 1 can be provided with in the outer wall of opening portion 11 can be for the screw thread 112 that engages, be composed of so in like manner can form with screw-in version for the box type pipe joint relative with another, in addition, in the bore of described box type opening portion 11a, also can be provided with known members such as various gas-tight rings or airtight pad, so part known configuration or its applied in any combination, this case is not promptly given unnecessary details in addition, and reason is closed and indicated.

According to pipe joint 1 of the present utility model or 1a design, mainly be utilize pipe joint 1 or 1a between two the sawtooth bulge loops 121 of belled part 12 or 12a or 121a, form one can with corresponding annular groove face 122 or the 122a of a branch of hoop coupling, and O shape ring 3 embedded the little annular groove 123 that is placed on this annular groove face 122 (or 122a), therefore when external hose 4 is inserted in belled part 12 or 12a, can simple and easyly utilize a branch of hoop 2 to cooperate a locking plate 21 and tightly encircle annular groove face 122 or the 122a that bundle is incorporated into the coupling correspondence, provide splendid airtight joint by one or more O shape ring 3, the whole composition very simply rapidly, abandon known gluing fully and bind mode, so can effectively improve the disappearance that engages of known tubes joint extension belled part and external hose.

Though the utility model discloses with specific embodiment; but it is not in order to limit the utility model; any those skilled in the art; the displacement of the equivalent assemblies of under the prerequisite that does not break away from design of the present utility model and scope, having done; or, all should still belong to the category that this patent is contained according to equivalent variations and modification that the utility model scope of patent protection is done.

Claims

1. A pipe joint. One end of the pipe body of the pipe joint is a male or female opening, and the other end is an extended socket. The socket has a plurality of adjacent inverted cones. The sawtooth protruding ring is characterized in that: the sleeve part of the pipe joint is between two adjacent serrated protruding rings to form a ring groove surface that can be matched with a bunch of hoops, and there is a ring groove surface on the ring groove surface One or more small ring grooves for inserting O-rings, and the O-rings are embedded in the small ring grooves.

2. The pipe joint according to claim 1, characterized in that: the socket part is inserted into an external hose, and the band is tightly bound to the matching corresponding ring groove surface, and the socket part of the pipe joint and External hoses create an air-tight, leak-proof joint.

3. The pipe joint according to claim 1, characterized in that: the width of the annular groove of the socket portion is greater than or equal to the width of the band of the band.