CN205036998U - Detachable pipe fittings of two pipe end portions - Google Patents

Abstract

Detachable pipe fittings of two pipe end portions is provided. Detachable pipe fittings of two pipe end portions includes: non -circular pair adapting unit (10), its have through two elastic arm (13) link together have two in first locking cam (14) but first elastic deformation ring (11) with have in two seconds locking cam (15) but second elastic deformation encircle (12), the first pipe end portion (20) that has first outer locking protruding portion (24), and outer locking protruding portion (33) the second pipe end portions (30) of second have, and its characterized in that, first pipe end portion (20) inserts in the second pipe end portion (30), two first interior locking cam (14) and first outer locking protruding portion (24) interact on first ring (11), locking protruding portion (33) interact outside locking cam (15) and the second in two seconds on the second ring (12), the major axis (d2) of non -circular pair adapting unit (10) is in 1.2 to 1.6 within range with the ratio of minor axis (d1).

Description

The detachable tubular union of two tube ends

Technical field

The utility model relates to tubular union, particularly a kind of twin connectors system for connecting two tube ends removably, this twin connectors system comprises: non-circular dual link parts, and these non-circular dual link parts have two the elastically deformable rings connected by elastic arm; And two tube ends, wherein, the outer stop lug of tube end matches with the interior brake cam on deformable loop.

Background technique

Such link has widespread demand, and such as, in automobile construction, especially such link is used for the connection of fuel conduit or air passageways.Wherein, term " passage " means the closing pipe line with arbitrary section, the pipe particularly with circular cross-section or pipeline.Generally speaking, such link has the structure of relative complex, namely has the multiple connectors between multiple part of different materials and each several part.And then this needs high manufacture cost, high LOGISTICS COST and high assembly cost.Because each individual components cannot be formed as short as required, therefore multicomponent structure is unprofitable to the sealability of pipeline and has to by known minimum length.In addition, the narrow space ratio in adjoint most of car engine chamber now, is necessary for the easy contact of each connector and provides enough spaces.

Model utility content

The utility model is based on for the purpose of the quick connection providing above-mentioned known type scheme, the utility model adopts the approved advantage of prior known solutions, can simply and reasonably manufacture, functionally to be expanded and that pipeline can be made to connect is compact.

Detachable tubular union of the present utility model comprises:

Non-circular dual link parts, these non-circular dual link parts comprise the first elastically deformable ring with brake cam in two first and the second elastically deformable ring with brake cam in two second, and the first elastically deformable ring and the second elastically deformable ring are joined together by two elastic arms;

First tube end, this first tube end has the first outer stop lug; And

Second tube end, this second tube end has the second outer stop lug, and

The feature of this detachable tubular union is,

First tube end is inserted in the second tube end, and

In two first on first elastically deformable ring, brake cam and the first outer stop lug interact, and on the second elastically deformable ring two second, brake cam and the second outer stop lug interact, and

The major axis of non-circular dual link parts is in the scope of 1.2 to 1.6 with the ratio of minor axis.

By detachable tubular union of the present utility model, achieve particularly following advantage:

Described detachable tubular union achieves by utilizing the automatic clamping of brake cam incompatible simply in conjunction with the manufacture method of two tube ends.

Obtain the seal connector for fluid (fluid, steam or gas) purposes.

In order to unclamp link, two rings must be compressed by means of only the backpressure put between brake cam, thus, two rings to elastic arm the joint in the region that interior brake cam is formed be turned into by corresponding around the outside of stop lug engage.Alternatively, elastic arm or ring can be launched with proper implements.Therefore, be enough to easily carry out pulling dismounting on the axial direction of link.

Link is at least almost symmetry and---namely on a tube end or another tube end---can unclamps in both sides thus.

Two rings and two elastic arms with interior brake cam define dual link parts, dual link parts can with two pipe end section from, and dual link parts and two tube ends are only at contact outside and joint.In this link, there is very large degrees of freedom in the selection of the material used with regard to dual link parts, the material that the material that dual link parts use uses independent of two tube ends, therefore, can select when not considering the medium carried in tube end.Dual link parts can manufacture relatively short in the axial direction.Axial length due to whole link is determined by the length of dual link parts substantially, and therefore whole link is also very short and compact.The height of non-circular dual link parts is in the scope of 0.9 to 1.3 with the ratio of minor axis.

Dual link parts can be made for the injection molding part of plastics by abnormal cost economically, and wherein, the minimum dimension that may reach is favourable.Another advantage is the large degrees of freedom of the pointed selection about use material.As can the plastic materials of molding and forming for the suitable of dual link parts, the polymer adopting industry to manufacture usually can be considered.Generally speaking, enhancement mode polyamide is applicable.In this doubly-linked fitting, polyamide 6, polyamide 66, polyamide 46, polyamide 11, polyamide 12 and semi-aromatic semi-crystalline copolyamide (polyphthalamide) are preferred.

Fiber and/or mineral (such as mica) can be used as the strengthening agent of polyamide.For the enhancing undertaken by fiber, such as, glass fibre, carbon fiber or aramid fibre are applicable, and wherein, glass fibre is preferred.

Dual link parts can be pre-installed on the first tube end or the second tube end, and such as can pay, transport, store and finally assemble together with these parts.With regard to the formation that connects with regard to unclamping, dual link parts do not need to disassemble from the tube end of correspondence.Therefore, dual link parts do not show as the separating component loosened of link.

Two tube ends are formed as can grafting each other.Especially, the end sections of the second tube end progressively widens the end sections for receiving first tube end, and wherein, stair-stepping those widened sections directly can be used as the second outer stop lug.Certainly, additional flange (bead) or additional groove also can be used as outer stop lug.

The sealability of detachable tubular union can be implemented as: such as, the end sections of the second tube end is provided with sealing surfaces in inner side, and the end sections of the first tube end be provided with at least one circumferential seal groove in outside used at least one Sealing such as O type annular seal.When a tube end in two tube ends is inserted in another tube end, two tube ends are sealed against the sealing surfaces without other features on described second tube end by least one Sealing.With regard to Sealing, pad (gasketcord) or lip seal can also be used.

Generally speaking, can by the extrusion and blow molding pipe of flexibility and metal connecting piece or plastic tube direct be connected realize using in automobile construction very favorable, simple, compact, lightweight, be easy to pipe that is that safeguard and assemble and economical and connect.

As another advantage, detachable tubular union of the present utility model is not limited to the connection of narrow tube, but be also specially adapted to major diameter, such as, those major diameters such as required by air passageways, because need not arrange complicated parts or structure and dual link parts can closely construct on two tube ends.Due to dual link parts of the present utility model, simple, the favourable geometrical construction of two tube ends is made to become possibility.

Accompanying drawing explanation

Next in more detail the utility model is described with reference to the accompanying drawings.In the accompanying drawings:

Fig. 1 shows according to the side view with the detachable tubular union of dual link parts of the present utility model; And

Fig. 2 shows according to the side view with the detachable tubular union of dual link parts of the present utility model; And

Fig. 3 shows the stereogram according to dual link parts of the present utility model; And

Fig. 4 shows according to the sectional view with the detachable tubular union of dual link parts of the present utility model;

Fig. 5 shows according to the stereogram with the detachable tubular union of dual link parts of the present utility model.

Embodiment

In FIG, first tube end indicates with reference character 20 and the second tube end indicates with reference character 30, wherein, first tube end 20 and the second tube end 30 can be used as the part of such as fuel conduit or also be used as the part of air passageways, as in such as automobile construction the part of those fuel conduits of using or air passageways.

At least one tube end in tube end can as a part for the link be attached on container.Next, with reference to tube end 20 exemplarily, imagination tube end 20 is used as a part for the flexible tube of the air passageways be made up of plastic materials, this tube end 20 have preferably to be in the scope of 20mm to 100mm, the diameter be particularly preferably in the scope of 35mm to 65mm.On the contrary, tube end 30 is parts of the link of the container be made up of metal or plastics.

An end sections 21 of the first tube end 20 inserts in an end sections 31 of the second tube end 30.For this reason, end sections 31 is widened, and wherein, those widened sections is stepped.

The internal surface 32 of end sections 31 is formed as level and smooth sealing surfaces.On the other hand, in the outside of end sections 21, be provided with the circumferential seal groove 22 for O type annular seal.O type annular seal 23 carries out sealing and against internal surface 32 in seal groove 22, and thus against the post portion between two end sections 21,31 in grafting each other.

Two tube ends 20,30 are held togather by dual link parts 10.Dual link parts 10 comprise the first elastically deformable ring 11 being positioned at the first tube end 20 side and the second elastically deformable ring 12 being positioned at the second tube end 30 side.Two rings 11,12 are connected to each other via two diametrically relative elastic arms 13.In the position that elastic arm 13 is connected with ring 11,12, on ring 11,12 (as the case may be, also on the end of elastic arm) inner side is provided with interior brake cam, and in fact, first ring 11 is provided with brake cam 14 in first, and is provided with brake cam 15 in second on the second ring 12.Brake cam 14 and 15 is provided with at the cross sectional planes middle finger of dual link parts outside stop surface side toward each other at it respectively, and on the other hand, its side away from one another is provided with outstanding deflector surface.

For realizing the high stability of detachable tubular union and enough latching forces, the width sum (=2b, see Fig. 3) of elastic arm is 20% to 45% of the overall circumference of elastically deformable ring 11 and 12.

Fig. 1, Fig. 2, Fig. 4 and Fig. 5 show the link of the present utility model being in coupled condition.In this state, link is protected and the effect avoided due to the pulling force of axial action and accidental release.But when in this state whenever necessary, two tube ends can against rotating each other, however when two tube ends be formed in rotationally symmetrical fashion time, then usually assemble with correct Angle Position from the beginning.

In known cases, required is accurately assemble when not existing and rotating possibility.This can be realized by the rotation asymmetry structure of tube end, thus prevents rotation or protective tube in order to avoid rotate by form fit.

With regard to the assembling of link of the present utility model, in a first step, such as, the first tube end 20 is inserted (fixing thus) in first ring 11 side in dual link parts 10.Once the first stop lug 24 contacts with the deflector surface of the first brake cam 14, then the first brake cam 14 just bends with the distortion of first ring 11 and the distortion of two elastic arms 13 along with further motion away from one anotherly, until the first brake cam 14 can withhold in stop lug 24 resilience below.In this position, the first tube end 20 and dual link parts 10 are relative to each other attached.Alternatively dual link parts are pre-installed on the first tube end.

As the second step for completing connection, second tube end 30 to insert in opposite direction in dual link parts 10 and receives the end sections 21 of the first tube end 20 or the first tube end 20, until the interior brake cam 15 on the second ring 12 is buckled in the second outer stop lug 33 of the second tube end 30 below, be connected with the first tube end in an insertion direction in the foregoing manner.By using O type annular seal, directly achieve the sealing of two tube ends 20,30 against outside.

But, here also should it is emphasized that the assembling of link of the present utility model equally also can complete in reverse order.That is, in a first step, also dual link parts 10 can be pushed on the second tube end 30 by ring 12, and in the second step, the first tube end 20 can be inserted.

Link of the present utility model can be released on first ring 11 or the second ring 12, thus, corresponding ring, due to applied pressure and high deformation between brake cam, makes to be arranged on the interior brake cam on ring and corresponding stop lug---the interior brake cam on ring is bonded on after this stop lug---and forms outer side engagement.As the case may be, the instrument that the ring in the region for making to be arranged in brake cam or elastic arm launch can also be used, such as, from the expansion pawl (spreadinggripper) that the axial end portion of ring is attached.Subsequently, the tube end be associated with corresponding ring can be pulled out from dual link parts 10.

Fig. 3 shows the 3-D view of non-circular dual link parts, it is characterized in that length b and the height h1 of diameter d 1 and d2 and elastic arm.Dual link parts 10 are compact and are preferably made for the injection molding part of plastics in ratio.The cross section of dual link parts 10 is non-circular (see Fig. 3) and therefore can describes with two axis---major axis d2 and minor axis d1---.First elastically deformable ring 11 and the position X1 of the second elastically deformable ring 12 preferably in the scope being in welding line, X2, X3 and X4 (see Fig. 1) place have the projection (nose 16) that local increases, wherein, the height (h2) of the projection of local increase is in the scope of 1.5 to 3 with the ratio of the height (h3) of the elastically deformable ring of the contiguous projection locally increased.The height h3 of contiguous nose 16 represents the minimum altitude of deformable loop 11 and 12.In addition, preferably the first elastically deformable ring (11) and the second elastically deformable ring (12) position between elastic arm are convergents, thus, the height (h3) of the elastically deformable ring of the projection of contiguous local increase is in the scope of 0.4 to 0.7 with the ratio of the height (h4) of the elastically deformable ring of contiguous elastic arm.

First tube end 20 or whole assembled portion can be made by extrusion and blow molding.By this way, as long as pipe is still soft and has plastic, then pipe is depressed and is broadened after the extrusion in outer mold, and in the current situation, outer mold at least must have in the form of the groove supplying the first stop lug 24 used and the corresponding profile of the form in seal groove 22.

Detachable tubular union of the present utility model comprises two tube ends and dual link parts, and is particularly preferably used as the admittance area of motor car engine or the air passageways link of inflation area.

Reference numerals list

10: non-circular dual link parts

11: the first elastically deformable rings

12: the second elastically deformable rings

13: elastic arm

Brake cam in 14: the first

Brake cam in 15: the second

16: the projection of increase

20: the first tube ends

The end sections of 21: the first tube ends

22: seal groove

23: Sealing (such as, O type ring)

The first outer stop lug on 24: the first tube ends 20

30: the second tube ends

The end sections of 31: the second tube ends 30

32: the internal surface of end sections 31

The second outer stop lug on 33: the second tube ends 30

The leading edge of 34: the second tube ends

Claims (7)

1. a detachable tubular union for two tube ends, comprising:

Non-circular dual link parts (10), described non-circular dual link parts (10) comprise the first elastically deformable ring (11) with brake cam (14) in two first and the second elastically deformable ring (12) with brake cam (15) in two second, and described first elastically deformable ring (11) and described second elastically deformable ring (12) are linked together by two elastic arms (13);

First tube end (20), described first tube end (20) has the first outer stop lug (24); And

Second tube end (30), described second tube end (30) has the second outer stop lug (33), and,

The feature of the detachable tubular union of described two tube ends is,

Described first tube end (20) is inserted in described second tube end (30),

In described two first on described first elastically deformable ring (11), brake cam (14) and described first outer stop lug (24) interact, and brake cam (15) and described second outer stop lug (33) interact in described two second on described second elastically deformable ring (12), and

The described major axis (d2) of non-circular dual link parts (10) and the ratio of minor axis (d1) are in the scope of 1.2 to 1.6.

2. the detachable tubular union of two tube ends according to claim 1, it is characterized in that, the height (h1) of described elastic arm is in the scope of 0.9 to 1.3 with the ratio of the described minor axis (d1) of described non-circular dual link parts (10).

3. the detachable tubular union of two tube ends according to claim 1, it is characterized in that, the twice of the length (b) of described elastic arm equals 20% to 45% of the overall circumference of described first elastically deformable ring (11) and described second elastically deformable ring (12).

4. the detachable tubular union of two tube ends according to claim 1, is characterized in that, the diameter of described two tube ends is in the scope of 20mm to 100mm.

5. the detachable tubular union of two tube ends according to claim 1, is characterized in that, described two tube ends are formed as being rotational symmetric.

6. the detachable tubular union of two tube ends according to claim 1, it is characterized in that, described first elastically deformable ring (11) and described second elastically deformable ring (12) have the projection (16) that local increases at position (X1, X2, X3, X4) place near welding line, wherein, the ratio of the height (h3) of the described elastically deformable ring of the projection that the height (h2) of projection that described local increases increases with contiguous described local is in the scope of 1.5 to 3.

7. the detachable tubular union of two tube ends according to claim 1, it is characterized in that, described first elastically deformable ring (11) and described second elastically deformable ring (12) position between described elastic arm are convergents, wherein, the height (h3) of the described elastically deformable ring of the projection of contiguous described local increase is in the scope of 0.4 to 0.7 with the ratio of the height (h4) of the described elastically deformable ring of contiguous described elastic arm.