CN201368286Y

CN201368286Y - Pipeline joint

Info

Publication number: CN201368286Y
Application number: CNU2009201142894U
Authority: CN
Inventors: 董阿能
Original assignee: NINGBO CHINAUST AUTOMOBILE FITTINGS CO Ltd
Current assignee: NINGBO CHINAUST AUTOMOBILE FITTINGS CO Ltd
Priority date: 2009-02-19
Filing date: 2009-02-19
Publication date: 2009-12-23
Anticipated expiration: 2019-02-19

Abstract

The utility model discloses a pipeline joint, which has the advantages that a male joint is disassembled or assembled conveniently, the sealing effect is good, and the service life is long. The pipeline joint comprises the male joint (1), a hoop (4) and a female joint (5), wherein the male joint (1) is provided with a circular groove I (6) corresponding to the hoop (4); a first sealing ring is arranged between the end part of the male joint (1) and the inner bottom surface of the female joint (5); the female joint (5) is provided with notches (7) corresponding to the circular groove I (6) and the hoop (4), and the hoop (4) is matched with the circular groove I (6) and the notches (7) respectively; the male joint (1) is matched with the female joint (5), and at least one sealing ring is arranged between the male joint (1) and the female joint (5); a circular groove II (8) is opened in the first sealing ring, one axial end face of the first sealing ring is closely stuck with the end face and the partial outer surface of the end part of the male joint (1), and the other end face thereof is closely stuck with the inner bottom surface of the female joint (5).

Description

Pipe joint

Technical field

The utility model relates to a kind of pipe joint that is used for connecting pipeline (as oil circuit, water route or gas circuit).

Background technique

The pipe joint that generally uses links together male connector and negative joint by block and clip at present, be that described block is enclosed within on the male connector, described clip is positioned in the circular groove of male connector, described clip is realized axial limiting to block, described block and negative joint are spirally connected, like this, described male connector and negative joint just are joined together.When needs unload male connector, must earlier negative joint be backed out from block, with instrument clip is taken out from the circular groove of male connector again, will block a shot then and take off, so far from male connector, male connector is just split out fully, as seen, the pipe joint that generally uses is very loaded down with trivial details when the dismounting male connector at present, but also has such a case, after through long-time the use, being spirally connected between block and the negative joint is difficult to take apart because of getting rusty very much.

The negative joint inner bottom surface of described pipe joint is provided with the plain cushion seal ring, and the end face of the tapered end of described male connector is close to described plain cushion seal ring, and described plain cushion seal ring plays seal action.Described plain cushion seal ring is the rubber material, when the rubber of described plain cushion seal ring use is really up to the mark, described male connector will cooperate not in place with negative joint, the rubber that uses when described plain cushion seal ring is crossed when soft, the sealing effect of described plain cushion seal ring is just bad, the rubber Material Selection that therefore described plain cushion seal ring uses requires high, has correspondingly increased cost.Because the end face of the tapered end of described male connector is close to described plain cushion seal ring, so described end face has extruding to the plain cushion seal ring, again because described end face and plain cushion seal ring area of contact are little, so described end face is bigger to the squeezing pressure of plain cushion seal ring, can cause the extrusion-deformation of plain cushion seal ring bigger like this, after described plain cushion seal ring is through long-time the use, described plain cushion seal ring is fatigue failure very easily, after described plain cushion seal ring has to a certain degree breakage, the sealing effect of described plain cushion seal ring is with regard to variation, described pipe joint just produces most probably and leaks, and the dirt in the pipeline that described pipe joint connected just can enter in the space between male connector and the negative joint easily, thereby there are very many corrosions the part that causes male connector in the space and negative joint, make the mechanical property variation of male connector and negative joint, that is to say that described pipe joint is short working life.

The model utility content

The technical problems to be solved in the utility model is, provides that a kind of cost is low, the pipe joint of dismounting male connector convenience, good sealing effect, long service life.

The technical solution of the utility model is, the utility model pipe joint comprises male connector, clip, negative joint, described male connector is provided with and the corresponding circular groove I of clip, be provided with first seal ring between the end of described male connector and the inner bottom surface of negative joint, described negative joint is provided with and described circular groove I and the corresponding breach of clip, and described clip matches with described circular groove I and breach respectively; Described male connector and negative joint Spielpassung are provided with at least one seal ring between the outer wall of described male connector and the inwall of negative joint; The inside of described first seal ring has circular groove II, and an axial end face of described first seal ring is close to the end face of the end of described male connector and the part outer surface of end, and the axial other end and the negative joint inner bottom surface of described first seal ring are close to; The inside of described first seal ring has circular groove II, and an axial end face of described first seal ring is close to the end face of the end of described male connector and the part outer surface of end, and the axial other end and the negative joint inner bottom surface of described first seal ring are close to.

After adopting said structure, the utility model compared with prior art has the following advantages:

The utility model pipe joint has saved block, and described male connector and negative joint are to link together by clip, circular groove I and the breach axial limiting structure that forms that matches, thereby realize that described male connector and the reliable of negative joint are connected; Because saved block, the structure that is spirally connected has so also been saved, so the utility model pipe joint cost is low; When needs dismounting male connector, only need the dismounting clip just can take off male connector, so it is just convenient in the extreme, when reinstalling male connector, only male connector need be inserted in the negative joint, make circular groove I and breach then, again clip be put into circular groove I and breach last, just male connector and negative joint can be linked together, also be that very the place is just.

Because the inside of described first seal ring has circular groove II, the end face of an axial end face of described first seal ring and the end of described male connector and the part outer surface of end are close to, the axial other end and the negative joint inner bottom surface of described first seal ring are close to, so when having fluid to flow through in the described gas path joint, this fluid will be full of described circular groove II, at this moment, described circular groove II just is equivalent to a hydrodynamic pressure chamber, under the effect of hydrodynamic pressure, the end face of an axial end face of described first seal ring and the end of described male connector and the part outer surface of end will tightly stick together, the axial other end of described first seal ring and the bottom surface of negative joint inside also will tightly stick together, like this, described first seal ring just has extraordinary sealing effect; Because it is low that the described first seal ring selection requires, soft slightly or hard partially rubber material all can, so correspondingly reduced cost; Because described first seal ring is not to rely on the mutual extrusion of male connector and negative joint to reach sealing, and the end area of contact of an axial end face of described first seal ring and described male connector is big, be that the pressure of fluid pressure action on the unit area of described first seal ring is just little, so be not easy fatigue failure after the use of described first seal ring through one period long period, still can reliable sealing, like this, just can not enter dirt in the space between described male connector and the negative joint, also just not having corrosion produces, thereby make the mechanical property of male connector and negative joint keep stable, make the utility model gas path joint longer than the working life of the gas path joint of prior art in the long-time back of using.

In a word, low, the dismounting male connector convenience of the utility model pipe joint cost, good sealing effect, long service life.

Description of drawings

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

Fig. 2 is the structural representation of prior art pipe joint.

Fig. 3 is the exploded perspective view of the utility model pipe joint.

Shown in the figure:

The pipe joint of prior art description of symbols, 101, male connector, 102, zero type circle a, 103, zero type circle b, 104, zero type circle c, 105, block, 106, clip, 107, the plain cushion seal ring, 108, negative joint.

The utility model pipe joint description of symbols, 1, male connector, 2, zero type circle a, 3, zero type circle b, 4, clip, 5, negative joint, 6, circular groove I, 7, breach, 8, circular groove II.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

The prior art pipe joint generally is made up of male connector 101, zero type circle a 102, zero type circle b 103, zero type circle c 104, block 105, clip 106, plain cushion seal ring 107, negative joint 108, and concrete structure and annexation can not add and give unnecessary details referring to Fig. 2.

The utility model pipe joint comprises male connector 1, clip 4, negative joint 5, described male connector 1 is provided with and clip 4 corresponding circular groove I6, be provided with first seal ring between the inner bottom surface of the end of described male connector 1 and negative joint 5, described negative joint 5 is provided with and described circular groove I6 and clip 4 corresponding breach 7, and described clip 4 matches with described circular groove I6 and breach 7 respectively; Described male connector 1 and negative joint 5 Spielpassung are provided with at least one seal ring between the inwall of the outer wall of described male connector 1 and negative joint 5; The inside of described first seal ring has circular groove II8, the end face of an axial end face of described first seal ring and the end of described male connector 1 and the part outer surface of end are close to, and the axial other end of described first seal ring and negative joint 5 inner bottom surfaces are close to.Concrete structure is shown in Fig. 1 or 3.

Described first seal ring be fabricated to prior art, need customize according to the shape of the end of described male connector 1, the end of male connector described in this example 1 be shaped as taper.

Seal ring between the inwall of the outer wall of described male connector (1) and negative joint (5) is two, i.e. second seal ring and the 3rd seal ring; Described second seal ring is zero type circle a2, and described the 3rd seal ring is zero type circle b3.Concrete structure is shown in Fig. 1 or 3, and zero type circle a2 and zero type circle b3 do not draw among Fig. 3.

The utility model pipe joint has saved block 105, and described male connector 1 and negative joint 5 are to link together by clip 4, circular groove I6 and the breach 7 axial limiting structure that forms that matches, thereby realize that described male connector 1 is connected with the reliable of negative joint 5.

When needs dismounting male connector 1, only need dismounting clip 4 just can take off male connector 1, so it is just convenient in the extreme, when reinstalling male connector 1, only male connector 1 need be inserted in the negative joint 5, make then on 7 pairs of circular groove I6 and the breach, again clip 4 be put into circular groove I6 and breach 7, just male connector 1 and negative joint 5 can be linked together, also be that very the place is just.Concrete structure is shown in Fig. 1 or 3.

Claims

1, a kind of pipe joint, it comprises male connector (1), clip (4), negative joint (5), described male connector (1) is provided with and the corresponding circular groove I of clip (4) (6), be provided with first seal ring between the inner bottom surface of the end of described male connector (1) and negative joint (5), it is characterized in that: described negative joint (5) is provided with and described circular groove I (6) and the corresponding breach of clip (4) (7), and described clip (4) matches with described circular groove I (6) and breach (7) respectively; Described male connector (1) and negative joint (5) Spielpassung are provided with at least one seal ring between the inwall of the outer wall of described male connector (1) and negative joint (5); The inside of described first seal ring has circular groove II (8), the end face of an axial end face of described first seal ring and the end of described male connector (1) and the part outer surface of end are close to, and the axial other end of described first seal ring and negative joint (5) inner bottom surface are close to.

2, pipe joint according to claim 1 is characterized in that: the seal ring between the inwall of the outer wall of described male connector (1) and negative joint (5) is two, i.e. second seal ring and the 3rd seal ring.