CN201126078Y

CN201126078Y - Water pipe connecting device

Info

Publication number: CN201126078Y
Application number: CNU2007203109088U
Authority: CN
Inventors: 王仲雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-14
Filing date: 2007-12-14
Publication date: 2008-10-01
Anticipated expiration: 2017-12-14

Abstract

The utility model is about a water pipe connecting device which is used for connecting a plurality of water pipes. The device comprises a main body, a plurality of clamping piece composed by flexible material, a plurality of sealed pieces arranged in the main body, a plurality of separating pieces arranged in the main body and a extending sections with a plurality of through holes extending toward direction far away from the middle section; the clamping piece has a plurality of flexible arms; and each flexible arm has a locking potion which respectively extends to the through holes via the locking potion; thereby the clamping piece is fixed on the corresponding extending section; the rotating covers are rotatablely arranged on the corresponding extending potion; the inner lateral of each rotating cover is arranged with a plurality of position-limited grooves at intervals; while the rotating cover rotates to a special position, the locking potion is separated from the corresponding position-limited groove, which is pressed by the inner wall of the rotating cover to deform; so that the inner diameter of the clamping piece is reduced to clamp the water pipe enabling the pipe not easy to pull out.

Description

Tube connection device

Technical field

The utility model relates to a kind of connection set, particularly relates to a kind of have fast quick-detach and assembling function, and dismounting and when assembling very easy tube connection device.

Background technique

The application scope of tube connection device is very extensive, need utilize the place of flowing line at all, nearly all can see the extension of tube connection device and use.Generally speaking, the most original water pipe Placement, be to utilize metal joint directly to accept two or most root water pipe, utilize external force to make this metal joint distortion again, and whereby these two or most root water pipe are connected hermetically, but, this type of metal joint not only quite bothers on as installed, as be applied in the large-scale pipeline system, can quite expend man-hour and manpower, and its metal material also is subjected to external temperature and produce heat and allow the phenomenon of shrinkage, is easy to cause the forfeiture of its sealing in the course of time, and then forms the situation of leaking.

In view of this, it is material by plastic cement that industry is developed a kind of in addition, and has the water pipe adapter of quick assembling and dismounting, all has in this regard as John Guest and SEA TECH company and researches and develops.See also Fig. 1, shown in Figure 2, Fig. 1 is the exploded perspective view of the general existing fast disassembly type water pipe adapter of explanation, Fig. 2 is the sectional view of aid illustration water pipe adapter shown in Figure 1, a kind of fast disassembly type water pipe adapter that it is developed for SEA TECH company, this fast disassembly type water pipe adapter, include one be the tubular body 1 of hollow shape and two by flexible materials made seize part 2 on both sides by the arms; The two ends of this tubular body 1 are provided with two carriers 11, and two to seize part 2 on both sides by the arms then be to stretch into and be positioned this two carrier 11 respectively movably for this; Each is seized part 2 on both sides by the arms and has a ring-like basal wall 21, and this ring-like basal wall 21 is seized arm 22 on both sides by the arms to the majority of this tubular body 1 direction extension certainly, each inner side surface of seizing arm 22 on both sides by the arms has and is used for the metal bite 221 that contacts with a water pipe 100, when a water pipe 100 injects corresponding when seizing part 2 on both sides by the arms, the described part 2 of seizing on both sides by the arms can be pushed toward the middle body of this tubular body 1, this moment is described seizes the inwall that arm 22 is not subjected to this carrier 11 on both sides by the arms and oppresses, and then this water pipe 100 can be stretched through, and this seizes part 2 on both sides by the arms, but as when this water pipe 100 be will be drawn out the time, described 22 inwalls that can be subjected to this carrier 11 of arm of seizing on both sides by the arms are oppressed, make its distortion and be in the state that contracts, the described arm 22 formed apertures of seizing on both sides by the arms diminish in addition, relend by described metal bite 221 these water pipe 100 interlocks, allow this water pipe 100 can not be pulled out easily after this seizes part 2 on both sides by the arms inserting.

If this water pipe 100 is pulled out, then must be when this water pipe 100 of drawing, these ring-like basal wall 21 places of seizing part 2 on both sides by the arms make it stay the middle body of close this body with ejection simultaneously, it can not oppressed by the inwall of this carrier 11 and cause described interior compression deformation of seizing arm 22 on both sides by the arms, and then this water pipe 100 can be pulled out.

In addition, this fast disassembly type water pipe adapter is seized on both sides by the arms in each carrier 11 and each and also is provided with folded mutually a seal ring 3 and a ring-type spacer element 4 (spacer) between the part 2, in case the water of fluid stopping within this fast disassembly type water pipe adapter leaks outside, sealing ring 3 is an existing O type ring, and this spacer element 4 is and the similar ring-type of sealing ring 3 sizes, be used for seizing on both sides by the arms the contact medium between the arm 22 of seizing on both sides by the arms of part 2 as sealing ring 3 and this, make the described arm 22 of seizing on both sides by the arms when packing into, can push against this spacer element 4, relend by this spacer element 4 and intactly push sealing ring 3, and then increase leak preventing effect.

But owing to will take this water pipe 100 joint portability and practicability into account, this water pipe adapter is to cooperate the external diameter of this water pipe 100 designed, so its maximum outside diameter can not be too many above the external diameter of this water pipe 100, and then saves the space.But thus, this area of seizing the ring-type basal wall of part 2 on both sides by the arms just can not be too big, and when this water pipe 100 will be pulled out, it is less that the user can push against the area of this ring-type basal wall, difficulty comparatively on the application of force, and then increase degree of difficulty when pulling out.

Moreover, water pipe dismounting mode by this water pipe adapter is uncommon, first user is not as seeing operating instruction or not having under the situation via other people teaching, to infer soon that its using method in fact and be not easy, therefore, on the convenience of its use, still can further strengthen again.

This shows that above-mentioned existing tube connection device obviously still has inconvenience and defective, and demands urgently further being improved in structure and use.In order to solve the problem of above-mentioned existence, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, this obviously is the problem that the anxious desire of relevant dealer solves.Therefore how to found a kind of tube connection device of new structure, can reach portability and practicability on the one hand, the simple and easy degree in the time of can taking dismounting and assembling on the other hand again into account just becomes relevant dealer and needs the target of making great efforts research and development badly.

Because the defective that above-mentioned existing tube connection device exists, the inventor is based on being engaged in this type of product specification manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, in the hope of founding a kind of tube connection device of new structure, can improve general existing tube connection device, make it have more practicability.Through constantly research, design, and, create the utility model that has practical value finally through after studying sample and improvement repeatedly.

Summary of the invention

The purpose of this utility model is, overcome the defective that existing tube connection device exists, and provide a kind of tube connection device of new structure, technical problem to be solved is to make it not only can have the function of fast quick-detach and assembling, and can take the simple and easy degree in dismounting and when assembling into account, be very suitable for practicality.

The purpose of this utility model and to solve its technical problem be to adopt following technological scheme to realize.According to a kind of tube connection device that the utility model proposes, this tube connection device comprises a body, most folder bundle spare, most Sealings and most spacer elements of being made by flexible materials; This body has a center section part, and most extension parts that court extends away from the direction of this center section part, described folder bundle spare is to be arranged at corresponding joint respectively, each folder bundle part has a ring-type base portion, and most elastic arms of extending towards this body direction of this ring-type base portion certainly, the inner side surface of each elastic arm is provided with a bite, this two Sealing is the junction that places this body and corresponding described extension part respectively, described spacer element is to place respectively on the corresponding described Sealing, and a side of described spacer element is to be arranged at respectively on the corresponding Sealing of institute, opposite opposite side is then restrainted the terminal contact mutually of most elastic arms of part with this folder, wherein: this tube connection device also has most the rotary covers that can be arranged at rotatably respectively on the described extension part, be provided with the perforation that majority runs through on each extension part at intervals, each elastic arm has an engagement portion on the outer side surface of this bite, and stretching into the described perforation that is positioned on the corresponding extension part, the inner side surface of each rotary cover is provided with most restraining grooves.

The purpose of this utility model and solve its technical problem and can also be further achieved by the following technical measures.

Aforesaid tube connection device, the bite on wherein said each elastic arm is the inner side surface that is embedded at this elastic arm.

Aforesaid tube connection device, wherein said each extension part are provided with two stop blocks separately, and are arranged at intervals with two guiding grooves that stretch into for described stop block respectively on each rotary cover.

Aforesaid tube connection device more is provided with two blocks point on wherein said each guiding groove, this two blocks point is to lay respectively near this place, position, guiding groove two end part.

Aforesaid tube connection device, the joint of the inner side surface of wherein said rotary cover and each restraining groove one side is provided with a slope section.

The utility model compared with prior art has tangible advantage and beneficial effect.By technique scheme, the utility model tube connection device has following advantage and beneficial effect at least: the utility model utilizes described rotatably being arranged on the described extension part, and its inwall is provided with the rotary cover of most restraining grooves separately, make it when rotating to a special position, engagement portion on the described elastic arm is to stagger with corresponding restraining groove, and be subjected to the compressing of this rotary cover inwall and produce distortion, and then the internal diameter of this folder bundle part is dwindled, make this water pipe be seized on both sides by the arms in this folder bundle part and be not easy to extract, and when needs are extracted water pipe, only need this rotary cover is gone to a certain location, engagement portion on the described elastic arm will be goed deep in the corresponding restraining groove, and then described elastic arm is not formed compressing and makes this water pipe be extracted easily.

In sum, the utility model relates to a kind of tube connection device, be used to connect most root water pipes, it comprises folder bundle spare that a body, most made by flexible materials, most is located at this intrinsic Sealing, most and is located at this intrinsic spacer element, and most rotary covers.This body has a center section part, and majority has most perforation, and towards the extension part that extends away from this center section part direction, described folder bundle spare has most elastic arms, and has an engagement portion on each elastic arm, and stretch into respectively in the described perforation by described engagement portion, whereby described folder bundle spare is fixed on the corresponding extension part, described rotary cover is rotatably to be arranged on the corresponding extension part, the inner side surface of each rotary cover is provided with most restraining grooves separately, and when turning to a special position, can stagger with corresponding restraining groove in described engagement portion, and oppressed by the inwall of this rotary cover and be out of shape, and then the internal diameter of this folder bundle part is dwindled and this water pipe is seized on both sides by the arms, make it be not easy to be pulled out.The utility model not only can have the function of fast quick-detach and assembling, and can take the simple and easy degree when dismantling and assembling into account, is very suitable for practicality.The utlity model has above-mentioned plurality of advantages and use value, no matter it all has bigger improvement on product structure or function, obvious improvement is arranged technically, and produced handy and practical effect, and more existing tube connection device has the outstanding effect of enhancement, thereby being suitable for practicality more, really is a new and innovative, progressive, practical new design.

Above-mentioned explanation only is the general introduction of technical solutions of the utility model, for can clearer understanding technological means of the present utility model, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.

Description of drawings

Fig. 1 is the exploded perspective view of the general existing fast disassembly type water pipe adapter of explanation.

Fig. 2 is the sectional view of aid illustration water pipe adapter shown in Figure 1.

Fig. 3 is the stereogram of explanation the utility model tube connection device first preferred embodiment.

Fig. 4 is the side-looking exploded perspective view of aid illustration first preferred embodiment shown in Figure 3.

Fig. 5 is the sectional view of the combination situations of this first preferred embodiment of explanation and a water pipe.

Fig. 6 is the stereogram of a folder bundle part of this first preferred embodiment of explanation.

Fig. 7 is the stereogram of a rotary cover of this first preferred embodiment of explanation.

Fig. 8 is the sectional view that further specifies this rotary cover among Fig. 7.

Fig. 9 is that this rotary cover of explanation is the sectional view that is positioned at a free position.

Figure 10 is the partial enlarged drawing that further specifies the detail structure among Fig. 9.

Figure 11 is that this rotary cover of explanation is the sectional view that is positioned at a latched position.

Figure 12 is the partial enlarged drawing that further specifies the detail structure among Figure 11.

Figure 13 is the side view of explanation the utility model tube connection device second preferred embodiment.

Figure 14 is the side view of explanation the utility model tube connection device the 3rd preferred embodiment.

Embodiment

For further setting forth the utility model is to reach technological means and the effect that predetermined goal of the invention is taked, below in conjunction with accompanying drawing and preferred embodiment, to according to its embodiment of tube connection device, structure, feature and the effect thereof that the utility model proposes, describe in detail as after.

Relevant aforementioned and other technology contents, characteristics and effect of the present utility model can clearly present in the following detailed description that cooperates with reference to graphic preferred embodiment.Explanation by embodiment, when can being to reach technological means that predetermined purpose takes and effect to get one more deeply and concrete understanding to the utility model, yet appended graphic only provide with reference to the usefulness of explanation, be not to be used for the utility model is limited.

Below by preferred embodiment and accompanying drawing the utility model water pipe 100 connection sets are elaborated.Before the utility model is described in detail, be noted that in the following description similar elements is to represent with identical label.

See also Fig. 3, shown in Figure 4, Fig. 3 is the stereogram of explanation the utility model tube connection device first preferred embodiment, and Fig. 4 is the side-looking exploded perspective view of aid illustration first preferred embodiment shown in Figure 3.First preferred embodiment of the utility model water pipe 100 connection sets, be two water pipes 100 can be connected, these water pipe 100 connection sets comprise that one is made and be located at folder bundle spare 6 on this body 5, two Sealings 7, two spacer elements 8 (spacer) by the made body of hard plastic 5, two by flexible materials, and two rotary covers 9.

See also Fig. 3, Fig. 4, and cooperate and to consult Fig. 5, shown in Figure 6, Fig. 5 is this first preferred embodiment of explanation and the sectional view of the combination situations of a water pipe, and Fig. 6 is the stereogram that a folder of this first preferred embodiment of explanation is restrainted part.Above-mentioned body 5, center section part 51 with a tubulose, and two respectively from 51 liang of end opposite of this center section part towards and the extension part 52 that extends away from the direction of this center section part 51, each extension part 52 is provided with the stop block 522 (because the visual angle relation only demonstrates a stop block 522 on each extension part 52 among Fig. 4) that separately perforation 521 and two has limit function;

Above-mentioned folder bundle spare 6, be arranged at corresponding extension part 52 respectively, each folder bundle part 6 has a ring-type base portion 61, and four elastic arms 62 that extend towards these body 5 directions from this ring-type base portion 61, and described elastic arm 62 with matching around and define a circular inner diameter, convex with a bite 622 on the inner side surface of each elastic arm 62, and on the outer side surface of this inner side surface, be provided with an engagement portion 621 that is standing shape, stretch into and protrude in its corresponding perforation 521 by this engagement portion 621, and utilize this mode that described folder bundle spare 6 is positioned on the corresponding extension part 52.In the present embodiment, be to illustrate with four elastic arms 62, still, the quantity of described elastic arm 62 also can change because of other design factors (as the size of water pipe 100), so should not exceed with the explanation of present embodiment.

In the present embodiment, described bite 622 is made by metal (SUS301), and is to embed to be fixed on the corresponding elastic arm 62.In addition, also have most protuberances 511 that are provided with separately on the inner side surface of this center section part 51, as shown in Figure 5, when described water pipe 100 inserts this body 5 fully and correctly, the end face of this water pipe 100 then can contact to described protuberance 511.

Two above-mentioned Sealings 7 are the junction that are arranged at body 5 and corresponding extension part 52 respectively;

Above-mentioned spacer element 8, one side are arranged at respectively on the corresponding Sealing 7 of institute, and the opposite opposite side of spacer element 8 then presss from both sides most elastic arms 62 terminal contacts mutually of restrainting on part 6 with this.In the present embodiment, described Sealing 7 is an O type ring, be used to make between described water pipe 100 and this body 5 to form sealing, and then make the fluid that flows between the two can not leak, be resisted against on the described Sealing 7 and position that can fixing seals 7 by this spacer element 8.

Please look back and consult Fig. 3, and cooperate and to consult Fig. 7, shown in Figure 8, Fig. 7 is the stereogram of a rotary cover of explanation first preferred embodiment, and Fig. 8 is the sectional view that further specifies rotary cover among Fig. 7.Above-mentioned rotary cover 9, be to be sheathed on respectively rotationally on the corresponding extension part 52 of institute, and be provided with four restraining grooves 93 on the inner side surface of rotary cover 9 at intervals, described restraining groove 93 is to be depressed on the inner side surface of rotary cover 9, be arranged at intervals with two guiding grooves 92 (among Fig. 3 because visual angle relation on the end of each rotary cover 9, only show a guiding groove 92), and more be provided with 2 block points 94 on each guiding groove 92, this 2 block point 94 is to lay respectively near this place, position, guiding groove 92 two end part, in addition, described block point 94 is to carry out spacingly to this stop block 522 with matching with the end of corresponding guiding groove 92, and this rotary cover 9 can not rotated when being positioned at above-mentioned two positions easily.

Please cooperate and consult Fig. 9, shown in Figure 11, Fig. 9 is that this rotary cover of explanation is the sectional view that is positioned at a free position, and Figure 11 is that this rotary cover of explanation is the sectional view that is positioned at a latched position.When this rotary cover 9 was sheathed on its corresponding extension part 52, the stop block 522 that is arranged on this extension part 52 will stretch into corresponding guiding groove 92, and this rotary cover 9 is rotated between a free position and a latched position.

See also Fig. 9, shown in Figure 10, Fig. 9 is that this rotary cover of explanation is the sectional view that is positioned at a free position, and Figure 10 is the partial enlarged drawing that further specifies the detail structure among Fig. 9.When this rotary cover 9 is when being positioned at this free position, engagement portion 621 on the described elastic arm 62 is the restraining grooves 93 that are arranged in these rotary cover 9 inner side surfaces, in the case, described elastic arm 62 is not oppressed by other member, it is the situation that is in natural relaxation, therefore can not produce deformation, so this folder bundle part 6 can be kept identical with above-mentioned circular inner diameter by the internal diameter that described elastic arm 62 is centered on, the described bite 622 that be positioned on described elastic arm 62 inner side surfaces this moment can't embed the outer wall that this water pipe 100 is lived in interlock, and then makes this water pipe 100 can freely pass in and out this folder bundle part 6.

See also Figure 11, shown in Figure 12, Figure 11 is that this rotary cover of explanation is the sectional view that is positioned at a latched position.Figure 12 is the partial enlarged drawing that further specifies the detail structure among Figure 11.When this rotary cover 9 is when being positioned at this latched position, engagement portion 621 on the described elastic arm 62 is not arranged in the restraining groove 93 of the inner side surface of this rotary cover 9, and then make the internal face contact mutually of described engagement portion 621 and this rotary cover 9, in the case, described engagement portion 621 will be subjected to the compressing and the generation deformation of the internal face of this rotary cover 9, make this folder bundle part 6 by 62 of described elastic arms around internal diameter dwindle thereupon, be positioned at 622 outer walls that can embed this water pipe 100 of bite on these majority elastic arm 62 inner side surfaces this moment, make this water pipe 100 present the situation of being bitten, and then this water pipe 100 can not be pulled out by the bite 622 of this majority elastic arm 62.

On this is noted that the outer side surface of each rotary cover 9, also have two separately and lines portions 91 that have rag (as shown in Figure 3), its role is to be to allow the frictional force of user when rotating described rotary cover 9, use simple and easy degree to increase it.In addition, the joint of the inner side surface of each rotary cover 9 and each restraining groove 93 1 sides is provided with a slope section 95 (shown in Figure 10,12), make this rotary cover 9 when rotated, corresponding engagement portion can slide into more smoothly or deviate from the corresponding restraining groove 93, to increase the smooth degree of this rotary cover 9 when the start.In addition, the outer side surface of this rotary cover 9 has the sign of this latched position and this free position equally, is respectively Lock and Unlock, understands to make things convenient for the user, still also can be the sign or the literal of other kinds, is not limited at this.

Seeing also shown in Figure 13ly, is the side view of explanation the utility model tube connection device second preferred embodiment.Second preferred embodiment of the utility model water pipe 100 connection sets is identical with first preferred embodiment haply, and something in common repeats no more, and its part inequality is: this body 5 is to be a L shaped aspect, is suitable for the connection of corner water pipe 100.

Seeing also shown in Figure 14ly, is the side view of explanation the utility model tube connection device the 3rd preferred embodiment.The 3rd preferred embodiment of the utility model water pipe 100 connection sets, be identical haply with first preferred embodiment, something in common repeats no more, its part inequality is: this body 5 also has an extension part 52 that vertically extends from this center section part 51, and the folder that another group matches with it is restrainted part 6, a rotary cover 9, a Sealing 7, reach a spacer element 8, and then form the structure aspect of a three-way pipe.

By above-mentioned three embodiments as can be known, water pipe 100 connection sets of the present utility model have multiple different variation aspect, because kind is numerous, real difficulty is stated clearly one by one for example, therefore enumerated three kinds of possible mode of executions at this, but should not exceed during actual enforcement with the explanation among above-mentioned three embodiments.

By above-mentioned design, the utility model water pipe 100 connection sets have the advantage of the following stated really when actual operation:

(1). fast assembling/dismounting: when dismantling or lock when stretching the water pipe 100 that places in these water pipe 100 connection sets, only need that this rotary cover 9 is gone to this sealed or free position and just can reach assembling/dismounting, quite clear and simple and easy in the use, allow the user under the situation that does not need specification or other people teaching, also can infer its usage mode easily from sign (Lock or Unlock) on one's body, can effectively increase to use and go up convenience by these water pipe 100 connection sets.

(2). easy to use: because the thickness of described rotary cover 9 itself is little, and be to adopt sheathed mode to be installed on the corresponding extension part 52 of institute, not only can reach the advantage of effective sealing and fast assembling-disassembling and assembling, more make it not have restriction on the too many space, and then can improve practicability.

(3). volume is little and be widely used in multiple conversion adapter and have preferable competitive advantage: more because the thickness of described rotary cover 9 and little, so that the external diameter of these water pipe 100 connection sets need be not too many greater than the external diameter of this water pipe 100, just can connect this water pipe 100 of planting, therefore has the benefit of saving the materials cost, and the utility model water pipe 100 connection sets can be widely used in the conversion adapter of L type or three-way type, so use value is big, and has preferable competitive advantage.

In sum, the utility model water pipe 100 connection sets, by rotatably being arranged on the extension part 52, and its inwall is provided with the rotary cover 9 of most restraining grooves 93 separately, it can be rotated between a latched position and a free position, when in latched position, the internal face that utilizes engagement portion 621 and rotary cover 9 on the elastic arm 62 is contact mutually, elastic arm 6 is oppressed and towards the distortion of the direction of body 5, and then the internal diameter that makes this folder bundle part 6 dwindles and make this water pipe 100 be seized on both sides by the arms in this folder is restrainted part 6 and be not drawn out easily, and when needs are extracted water pipe 100, only need this rotary cover 9 is gone to this free position, engagement portion 621 on the elastic arm 62 is moved in the restraining groove 93 of rotary cover 9 inner side surfaces not oppressed by other member, therefore can not produce deformation, the bite 622 that be positioned on elastic arm 62 inner side surfaces this moment can't embed the outer wall that water pipe 100 is lived in interlock, and then make this water pipe 100 can freely pass in and out folder bundle part 6, and then reach the advantage of fast quick-detach/assembling, and its finished-product volume is little and use simple and convenient, so can reach the purpose of this utility model and effect really.

The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, though the utility model discloses as above with preferred embodiment, yet be not in order to limit the utility model, any those skilled in the art are not in breaking away from the technical solutions of the utility model scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be the content that does not break away from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solutions of the utility model.

Claims

1, a kind of tube connection device, this tube connection device comprises a body, most the folder bundle spares of making by flexible materials, a most Sealing, and most spacer elements, this body has a center section part, and most extension parts that court extends away from the direction of this center section part, described folder bundle spare is to be arranged at corresponding joint respectively, each folder bundle part has a ring-type base portion, and most elastic arms of extending towards this body direction of this ring-type base portion certainly, the inner side surface of each elastic arm is provided with a bite, this two Sealing is the junction that places this body and corresponding described extension part respectively, described spacer element is to place respectively on the corresponding described Sealing, and a side of described spacer element is to be arranged at respectively on the corresponding Sealing of institute, opposite opposite side is then restrainted the terminal contact mutually of most elastic arms of part with this folder, it is characterized in that:

This tube connection device also has most the rotary covers that can be arranged at rotatably respectively on the described extension part, be provided with the perforation that majority runs through on each extension part at intervals, each elastic arm has an engagement portion on the outer side surface of this bite, and stretching into the described perforation that is positioned on the corresponding extension part, the inner side surface of each rotary cover is provided with most restraining grooves.

2, tube connection device as claimed in claim 1 is characterized in that the bite on wherein said each elastic arm is the inner side surface that is embedded at this elastic arm.

3, tube connection device as claimed in claim 2 is characterized in that wherein said each extension part is provided with two stop blocks separately, and is arranged at intervals with two guiding grooves that stretch into for described stop block respectively on each rotary cover.

4, tube connection device as claimed in claim 3 is characterized in that more being provided with on wherein said each guiding groove two blocks point, and this two blocks point is to lay respectively near this place, position, guiding groove two end part.

5, tube connection device as claimed in claim 4 is characterized in that the inner side surface of wherein said rotary cover and the joint of each restraining groove one side are provided with a slope section.