CN2823753Y

CN2823753Y - Fast-inserting joint

Info

Publication number: CN2823753Y
Application number: CN 200520102458
Authority: CN
Inventors: 董阿能; 毛再娜
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-26
Filing date: 2005-05-26
Publication date: 2006-10-04
Anticipated expiration: 2015-05-26

Abstract

The utility model discloses a fast inserting joint used for connecting nylon tubes in automobiles. The utility model comprises a joint, a lining core is arranged in the joint, and at least two sealing rings and a clamping ring are arranged outside the lining core. The utility model is characterized in that a small shock insulator is arranged between the sealing rings, large shock insulators are arranged among the sealing rings and the clamping ring, the snap ring is a conical ring with an opening, and a clamping sleeve is arranged at one end of the joint connected with the nylon tube. The utility model provides the technical scheme that the nylon tube is directly inserted into the joint by hand to fix and has the advantages of simple structure, good sealing effect, reliable work, etc.

Description

Quick inserting joint

Technical field

The utility model relates to a kind of pipe joint, especially a kind of quick inserting joint that is applied to connect in the automobile nylon tube.

Background technique

At present automobile fuel feeding and braking system adopt extensively that price is low, the nylon tube of function admirable, to replace traditional metallic conduit.But in connecting, still adopts in pipeline the linkage structure of traditional metallic conduit, i.e. Bite type fittings, and this joint will use spanner when existing assembling, assembly space is again little, is awkward, and efficiency of assembling is low, deficiencys such as assembly quality is difficult to assurance, and labor intensity is big.There is deficiency.The patent No. is CN02223142, denomination of invention discloses the rapid pipe joint of a kind of vehicle nylon pipe air braking system for the Chinese patent of " rapid pipe joint of a kind of vehicle nylon pipe air braking system ", it includes fittings body, in the one end pipe lining that the front end cylindrical is tapering is housed, it is characterized in that in the fittings body pipe that inserts nylon tube one end, becoming four step inner round wall, the diameter of its four steps inner round wall from outside to inside from large to small, and locking ring is housed successively, the nylon tube chuck, hold-down ring, seal ring, lining, the front end inner conical surface of locking ring and the rear portion of hollow are that the front portion of annulus post is that the middle part male cone (strobilus masculinus) of nylon tube chuck of annular prismatic face is adjacent, the inner conical surface of the annular prismatic face of nylon tube chuck is adjacent with the rear end male cone (strobilus masculinus) of hold-down ring, and the front end of hold-down ring is outer low and inner high stepped shape and seal ring rear end and is high outside and low outside stepped shape and is interlockingly connected.Its deficiency is: complex structure, processing cost height.

Summary of the invention

The purpose of this utility model is to overcome the deficiencies in the prior art and provides a kind of and can directly nylon tube be inserted in the fittings body body in free-hand mode, and simple in structure again, the reliable sealing quick inserting joint.

The utility model solves the problems of the technologies described above the technological scheme that is adopted:

A kind of quick inserting joint, comprise fittings body, tubular lining core is arranged in described fittings body, in the outside of described lining core seal ring and snap ring are arranged, between described lining core and seal ring and snap ring, the gap that holds nylon tube is arranged, it is characterized in that: described seal ring has 2 at least, little dottle pin is arranged between described seal ring, between described seal ring and described snap ring, big dottle pin is arranged, described snap ring is the tapered collar that has opening, and an end that connects nylon tube at described fittings body has clamping sleeve.

For optimizing technique scheme, the measure of being taked also comprises:

The diameter of described big dottle pin is greater than the diameter of little dottle pin.

Lining core, seal ring, snap ring, little dottle pin, big dottle pin and clamping sleeve that 2 nylon tubes of serial connection are arranged at described fittings body.

Lining core, seal ring, snap ring, little dottle pin, big dottle pin and clamping sleeve that 2 above nylon tubes are arranged and connect at described fittings body.

The other end of described fittings body is a bend pipe.

The other end of described fittings body is rotating bend pipe.

Because the utility model has been taked above-mentioned technical measures, compared with prior art has following advantage:

1, simple in structure, design is light and handy, and processing cost is low;

2, easy to use: as directly nylon tube to be inserted in the fittings body body in free-hand mode, improved efficiency of assembling;

3, good seal performance, reliable operation: plural seal ring can guarantee leak free sealing effect.Snap ring adopts back taper wedge angle form in design, has guaranteed the function that grips to nylon tube.Middle lining core plays the leading role of nylon tube and the pull-out force of Reinforced Nylon pipe, thereby has guaranteed the safety coefficient of using;

4, different quick inserting joint can be realized the connection combination of one or more pipeline;

5, the structure of joint has guaranteed the connection of nylon tube and the influence that sealing effect is not subjected to introduced contaminants.

Description of drawings

Fig. 1 is the utility model embodiment's a cross-sectional view;

Fig. 2 inserts the schematic representation of nylon tube when being the utility model use;

Fig. 3 is second embodiment's of the utility model a structural representation;

Fig. 4 is the 3rd embodiment's of the utility model a structural representation;

Fig. 5 is the 4th embodiment's of the utility model a structural representation;

Fig. 6 is the 5th embodiment's of the utility model a structural representation.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

See figures.1.and.2, the utility model comprises fittings body 1, and there is lining core 7 at the center in fittings body 1, and lining core 7 mainly plays the leading role of nylon tube 8, and the pull-out force of Reinforced Nylon pipe 8, thereby has guaranteed the safety coefficient of using.There are 2 seal rings 2 outside at lining core 7, and available solid O shape rubber seal has septulum pad 3 that 2 seal rings 2 are separated between seal ring 2.Big dottle pin 5 is arranged between seal ring 2 and snap ring 4, and the diameter of big dottle pin 5 can be greater than the diameter of septulum pad 3.Snap ring 4 is the tapered collars that have opening, and this back taper wedge angle form of snap ring 4 has guaranteed the function that grips to nylon tube 8.An end that connects nylon tube 8 at fittings body 1 has taper clamping sleeve 6.The utility model is except that rubber seal, and miscellaneous part all can be made of copper material.During use, only need nylon tube 8 directly is inserted in the gap that serves as a contrast between core 7 and the seal ring 2 in free-hand mode, snap ring 4 can be fixing with nylon tube 8.Can disassemble the good nylon tube 8 of pegging graft easily by special tool.

With reference to Fig. 3-Fig. 6, this is several mode of execution of the present utility model.Fig. 3 is and connects the quick inserting joint of 2 nylon tubes.Fig. 4 is the quick inserting joint of an end band elbow.Fig. 5 is the quick inserting joint of the rotating elbow of an end band.Fig. 6 is the quick inserting joint of 2 nylon tubes of serial connection, and the diameter of 2 nylon tubes can be different.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.

Claims

1, a kind of quick inserting joint, comprise fittings body (1), tubular lining core (7) is arranged in described fittings body (1), seal ring (2) and snap ring (4) are arranged in the outside of described lining core (7), between described lining core (7) and seal ring (2) and snap ring (4), the gap that holds nylon tube (8) is arranged, it is characterized in that: described seal ring (2) has 2 at least, little dottle pin (3) is arranged between described seal ring (2), between described seal ring (2) and described snap ring (4), big dottle pin (5) is arranged, described snap ring (4) is the tapered collar that has opening, and an end that connects nylon tube (8) at described fittings body (1) has clamping sleeve (6).

2, quick inserting joint according to claim 1 is characterized in that: the diameter of described big dottle pin (5) is greater than the diameter of little dottle pin (3).

3, quick inserting joint according to claim 1, it is characterized in that: the lining core (7) that 2 nylon tubes of serial connection (8) are arranged at described fittings body (1), seal ring (2), snap ring (4), little dottle pin (3), big dottle pin (5) and clamping sleeve (6), described lining core (7) is a tubular, seal ring (2) and snap ring (4) are arranged in the outside of described lining core (7), between described lining core (7) and seal ring (2) and snap ring (4), the gap that holds nylon tube (8) is arranged, described seal ring (2) has 2 at least, little dottle pin (3) is arranged between described seal ring (2), between described seal ring (2) and described snap ring (4), big dottle pin (5) is arranged, described snap ring (4) is the tapered collar that has opening, and an end that connects nylon tube (8) at described fittings body (1) has clamping sleeve (6).

4, quick inserting joint according to claim 1, it is characterized in that: the lining core (7) that 2 above nylon tubes (8) are arranged and connect at described fittings body (1), seal ring (2), snap ring (4), little dottle pin (3), big dottle pin (5) and clamping sleeve (6), described lining core (7) is a tubular, seal ring (2) and snap ring (4) are arranged in the outside of described lining core (7), between described lining core (7) and seal ring (2) and snap ring (4), the gap that holds nylon tube (8) is arranged, described seal ring (2) has 2 at least, little dottle pin (3) is arranged between described seal ring (2), between described seal ring (2) and described snap ring (4), big dottle pin (5) is arranged, described snap ring (4) is the tapered collar that has opening, and an end that connects nylon tube (8) at described fittings body (1) has clamping sleeve (6).

5, quick inserting joint according to claim 1 is characterized in that: the other end of described fittings body (1) is a bend pipe.

6, quick inserting joint according to claim 1 is characterized in that: the other end of described fittings body (1) is rotating bend pipe.