CN209495044U - A kind of connector and pipeline - Google Patents

Abstract

This it is practical it is new a kind of connector and pipeline are provided, be related to technical field of pipeline connection.The connector includes the first part being detachably connected and second part.First part includes female part, and second part includes connection-peg.Connection-peg is matched with female part grafting, and the outer surface of connection-peg includes that line contacts with the grafting contact form of the inner surface of female part.The connector is mainly used for connecting two different branch pipes.Certainly, after connector is connected with branch pipe, not only to guarantee the leakproofness that connector is connected with branch pipe, also to guarantee the leakproofness of connector inside itself.For the leakproofness for guaranteeing connector inside itself, first part and second part are attached by female part and the mating of connection-peg, and the outer surface of guarantee connection-peg includes that line contacts with the grafting contact form of the inner surface of female part.A kind of pipeline is also provided, which not only connects and dismantle all extremely convenient, and can also reach preferable sealing effect under conditions of not needing additional seal consumptive material.

Description

A kind of connector and pipeline

Technical field

The utility model relates to technical field of pipeline connection, in particular to a kind of connector and pipeline.

Background technique

The structures such as flange form, bite type, screw thread type are mostly used in current hydraulic system pipeline connection, in order to guarantee to seal Property need to usually use polytetrafluoroethylsealed sealed washer sealing, sealed ring deformation needs the polytetrafluoroethylsealed sealed circle that more renew therewith after disassembly.Some pipes Also the ball joint (being also ball compensator) of aerospace standard is used in road, but usually butt welding mode, this mode need to guarantee Inner nosepiece wall must not have overlap when welding, otherwise medium flow resistance can be made excessive, relatively high to welding requirements.

Utility model content

The purpose of this utility model is to provide a kind of connectors, can be avoided and overlap occur in inner nosepiece wall, thus shadow The flowing of medium is rung, and the connector does not need additional sealing consumptive material, safeguarded more convenient.

The another object of the utility model is to provide a kind of pipeline, and the flow channel inner wall of pipeline entirety goes out without overlap It is existing, to avoid medium flow resistance excessive.

The embodiments of the present invention are achieved in that

A kind of connector, including the first part being detachably connected and second part.First part includes female part, and second Dividing includes connection-peg.Connection-peg is matched with female part grafting, and the grafting of the inner surface of the outer surface and female part of connection-peg connects Touching form includes line contact.The connector is mainly used for connecting two different branch pipes.In traditional treatment method, connect according to flange Two branch pipes are connect, then are generally required using seal washer, and seal washer needs the replacement of not timing, to ensure that two branch pipes connect The leakproofness connect；If two branch pipes are connected using globe joint, butt welding is generally required, but be easy in connector in welding process Wall and branch pipe wall remain overlap, and then influence to manage the flowing of interior medium.For example, the paper pulp of paper industry is during streaming, If there is the presence of overlap in pipeline, be easy be detained slurry, and the slurry residence time it is too long will be putrid and deteriorated, influence into paper Quality ultimately causes biggish quality accident.In addition, when testing the higher space flight equipment of some precision, if adopting It is connected with globe joint butt welding, weld is easy to destroy avalanche during the test, and the welding slag or connector of avalanche are easy to these The higher equipment of precision damages, and causes biggish loss to user.Certainly, it after connector is connected with branch pipe, not only to protect The leakproofness that card connector is connected with branch pipe will also guarantee the leakproofness of connector inside itself.To guarantee the close of connector inside itself Feng Xing, first part and second part are attached by female part and the mating of connection-peg, and guarantee the outer of connection-peg Surface includes that line contacts with the grafting contact form of the inner surface of female part.Line contacts the outer surface that connection-peg can be effectively ensured It is effectively sealed and connect with the cooperation of the inner surface of female part, to eliminate the step of being welded on connector, avoid Overlap is remained in inner nosepiece wall, while without additional sealing consumptive material, convenient for the maintenance of connector inner sealing performance.

Optionally, the grafting contact form of the inner surface of the outer surface and female part of connection-peg can be only that line contacts, Can also be under the premise of having Line Contacts, while there is the contact of other forms, such as point contact and/or face contact.

In the embodiments of the present invention, the inner surface of female part limits to form the first round table-like cavity.Female part Inner surface has continuous inclined-plane, forms line with the inner surface of female part convenient for connection-peg and contacts, guarantees the sealing of the two contact Property.

Optionally, the inner surface of female part can also limit the cavity to form other shapes, as long as guaranteeing its energy and grafting Have Line Contacts when head cooperation.

Optionally, to be further ensured that leakproofness that female part is connect with connection-peg, the roughness one of female part inner surface As require be 1.6.

In the embodiments of the present invention, the outer surface of connection-peg is spherical surface.Spherical surface can be with the inner surface of female part more For simple, quickly formation line contact.And the leakproofness in order to guarantee female part and connection-peg cooperation, the outer surface of connection-peg Roughness requirements are 1.6.

Flow resistance when optionally, to guarantee that medium flows through connection-peg is smaller, and connection-peg intercepts one from top for hemisphere The sphere shape remained after point.Certainly, connection-peg can also add other shapes, such as square on the basis of with spherical surface The bodily form.

In the embodiments of the present invention, second part further includes fixing piece and the first linkage section.Connection-peg and first Linkage section is connected.Fixing piece is sheathed on the first linkage section, and fixing piece is detachably connected with connection-peg.In order to reinforce first part Leakproofness and stability when being connected with second part, using fixing piece realize first part and second part fast quick-detach, Connection.

In the embodiments of the present invention, fixing piece is provided with internal screw thread, and the outer surface of female part is provided with and interior spiral shell The matched external screw thread of line.Fixing piece is matched with female part screw thread, in the base for guaranteeing that connection-peg and female part inner surface are completely embedded On plinth, realization is rapidly assembled and disassembled.

In the embodiments of the present invention, finite place piece is arranged in the first linkage section, and locating part is for preventing fixing piece edge First linkage section falls off to the direction of connection-peg from the first linkage section.During fixing piece is constantly screwed into female part, limit What the cooperation of position part can improve fixing piece tightens degree, to improve the being completely embedded property of connection-peg Yu female part inner surface.

In the embodiments of the present invention, the first linkage section includes first segment and second segment.First segment, is inserted second segment Connector is sequentially connected.The internal diameter of first segment is greater than the internal diameter of second segment.The setting is convenient for being inserted into what needs connected into first segment Pipeline, and the difference on first segment and second segment internal diameter, so that pipeline can be only inserted into first segment, without can enter to second In section.When the seam crossing to pipeline and first segment welds, inner wall (including the pipe in medium channel can be preferably avoided Road inner wall, inner wall of second segment etc.) on remain overlap, ensure that the slickness of medium channel inner wall.

In the embodiments of the present invention, first part further includes the second linkage section, the second linkage section and female part phase Even.Second linkage section is mainly used for connecting pipe, is connected directly between female part compared to by pipeline, pipeline is connected to the second connection Section, overlap residual when can be reduced the processing request to female part, while also pipeline being avoided to weld (are influenced to female part outer surface The cooperation of fixing piece) or inner surface (flowing for influencing medium).

In the embodiments of the present invention, the second linkage section includes third section and the 4th section.Third section, the 4th section, hold Interpolating unit is sequentially connected.The internal diameter of third section is greater than the 4th section of internal diameter.The setting is convenient for being inserted into what needs connected into third section Pipeline, and the difference in third section and the 4th section of internal diameter, so that pipeline can be only inserted into third section, without can enter to the 4th In section.When the seam crossing to pipeline and third section welds, inner wall (including the pipe in medium channel can be preferably avoided Road inner wall, the 4th section inner wall etc.) on remain overlap, ensure that the slickness of medium channel inner wall.

A kind of pipeline, including the first branch pipe, the second branch pipe and any one of the above connector.First branch pipe and first part One end far from second part connects.Second branch pipe and second part are connected far from one end of first part.First branch pipe, first Partially, second part, the second branch pipe are sequentially communicated.Two branch pipes are attached using above-mentioned connector, are not only connected and are dismantled It is all extremely convenient, and can also reach preferable sealing effect under conditions of not needing additional seal consumptive material, make making for the pipeline It is more convenient with safeguarding.

The utility model embodiment at least have the following advantages that or the utility model has the advantages that

The utility model provides a kind of connector, the first part including being detachably connected and second part.First part's packet Female part is included, second part includes connection-peg.Connection-peg is matched with female part grafting, and the outer surface of connection-peg and female part The grafting contact form of inner surface includes line contact.The connector is mainly used for connecting two different branch pipes.Certainly, connector and branch After pipe connection, not only to guarantee the leakproofness that connector is connected with branch pipe, also to guarantee the leakproofness of connector inside itself.To guarantee The leakproofness of itself, first part and second part are attached by female part and the mating of connection-peg inside connector, And the outer surface of guarantee connection-peg includes that line contacts with the grafting contact form of the inner surface of female part.Line contact can be protected effectively The inner surface cooperation of the outer surface and female part of demonstrate,proving connection-peg is effectively sealed connection, carries out on connector to eliminate The step of welding, avoids and remains overlap in inner nosepiece wall, while without additional sealing consumptive material, being convenient for connector inner sealing The maintenance of performance.

The utility model also provides a kind of pipeline, including the first branch pipe, the second branch pipe and any one of the above connector.The One branch pipe and first part connect far from one end of second part.Second branch pipe and second part connect far from one end of first part It connects.First branch pipe, first part, second part, the second branch pipe are sequentially communicated.Two branch pipes are connected using above-mentioned connector It connects, not only connects and disassembly is all extremely convenient, and can also reach preferable sealing under conditions of not needing additional seal consumptive material Effect keeps the working service of the pipeline more convenient.

Detailed description of the invention

It, below will be to use required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment Attached drawing be briefly described, it should be understood that the following drawings illustrates only some embodiments of the utility model, therefore should not be by Regard the restriction to range as, for those of ordinary skill in the art, without creative efforts, may be used also To obtain other relevant attached drawings according to these attached drawings.

Fig. 1 is the structural schematic diagram of connector provided by the embodiment of the utility model；

Fig. 2 is Section A-A cross-sectional view in Fig. 1；

Fig. 3 is the structural schematic diagram of first part provided by the embodiment of the utility model；

Fig. 4 is the structural schematic diagram of second part provided by the embodiment of the utility model；

Fig. 5 is the structural schematic diagram of fixing piece provided by the embodiment of the utility model.

Icon: 100- connector；110- first part；112- female part；114- inner surface；The first cavity of 116-；Outside 118- Screw thread；The second linkage section of 120-；122- third section；The 4th section of 124-；150- second part；152- connection-peg；The outer surface 154-； 156- fixing piece；The first linkage section of 158-；160- internal screw thread；162- locating part；164- first segment；166- second segment.

Specific embodiment

It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Usually here in attached drawing description and The component of the utility model embodiment shown can be arranged and be designed with a variety of different configurations.

Therefore, requirement is not intended to limit to the detailed description of the embodiments of the present invention provided in the accompanying drawings below The scope of the utility model of protection, but it is merely representative of the selected embodiment of the utility model.Based in the utility model Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts, all Belong to the range of the utility model protection.

It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.

In the description of the utility model embodiment, it should be noted that if there is the side of the instructions such as term "inner", "outside" Position or positional relationship be based on the orientation or positional relationship shown in the drawings or the utility model product using when usually put Orientation or positional relationship, be merely for convenience of describing the present invention and simplifying the description, rather than indication or suggestion is signified Device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as practical new to this The limitation of type.In addition, term " first ", " second ", " third ", " the 4th " etc. are only used for distinguishing description, and should not be understood as referring to Show or imply relative importance.

In the description of the utility model embodiment, " multiple " represent at least two.

In the description of the utility model embodiment, it is also necessary to which explanation is unless specifically defined or limited otherwise, if Appearance term " setting ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, be also possible to It is detachably connected, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also lead to It crosses intermediary to be indirectly connected, can be the connection inside two elements.It for the ordinary skill in the art, can be with The concrete meaning of above-mentioned term in the present invention is understood as the case may be.

Embodiment

Referring to Fig.1 and 2, Fig. 1 show the structural schematic diagram of connector 100, Fig. 2 show Section A-A section view in Fig. 1 Figure.

It mainly include the first part 110 being detachably connected and second part the present embodiment provides a kind of connector 100 150.Structural schematic diagram when first part 110 and the connection of second part 150 is shown in Fig. 1 and Fig. 2.First part 110 wraps Female part 112 is included, second part 150 includes connection-peg 152.Connection-peg 152 is matched with 112 grafting of female part, and connection-peg 152 Outer surface 154 with the grafting contact form of the inner surface 114 of female part 112 include that line contacts.

Connector 100 is mainly used for connecting two different branch pipes.In traditional treatment method, according to two branch of flanged joint Pipe, then generally require using seal washer, and seal washer needs the replacement of not timing, to ensure the sealing of two branch pipes connection Property；If two branch pipes are connected using globe joint, butt welding is generally required, but be easy in welding process in inner nosepiece wall and branch pipe Inner wall remains overlap, and then influences to manage the flowing of interior medium.For example, the paper pulp of paper industry is during streaming, if in pipeline Have the presence of overlap, then be easy be detained slurry, and the slurry residence time it is too long will be putrid and deteriorated, influence into the quality of paper, most Biggish quality accident is caused eventually.In addition, being connect when testing the higher space flight equipment of some precision according to spherical shape Head butt welding connection, weld are easy to destroy avalanche during the test, the welding slag or connector of avalanche be easy to these precision compared with High equipment damages, and causes biggish loss to user.Certainly, after connector 100 is connected with branch pipe, not only to guarantee connector 100 leakproofness connected with branch pipe will also guarantee the leakproofness of 100 inside of connector itself.To guarantee 100 inside of connector itself Leakproofness, first part 110 and second part 150 are attached by female part 112 and the mating of connection-peg 152, and The outer surface 154 of guarantee connection-peg 152 includes that line contacts with the grafting contact form of the inner surface 114 of female part 112.Line contact The outer surface 154 that connection-peg 152 can be effectively ensured is effectively sealed with the cooperation of the inner surface 114 of female part 112 to be connect, To eliminate the step of being welded on connector 100, avoids and remain overlap in 100 inner wall of connector, while without volume Outer sealing consumptive material, convenient for the maintenance of 100 inner sealing performance of connector.

Certainly, the grafting contact form of the inner surface 114 of the outer surface 154 and female part 112 of connection-peg 152 can be only It is line contact, can also be under the premise of having Line Contacts, while there is the contact of other forms, such as point contact and/or face Contact.It is only with the outer surface 154 of connection-peg 152 and the grafting contact form of the inner surface 114 of female part 112 in the present embodiment Line contact describes in detail.

Referring to figure 3. and Fig. 4, Fig. 3 show the structural schematic diagram of first part 110, and Fig. 4 show second part 150 Structural schematic diagram.

The restriction of inner surface 114 of female part 112 forms the first round table-like cavity 116.The inner surface 114 of female part 112 With continuous inclined-plane, line is formed with the inner surface 114 of female part 112 convenient for connection-peg 152 and is contacted, guarantee the close of the two contact Feng Xing.Certainly, the inner surface 114 of female part 112 can also limit the cavity to form other shapes, as long as guaranteeing its energy and grafting Have Line Contacts when first 152 cooperation.To be further ensured that leakproofness that female part 112 is connect with connection-peg 152, female part The roughness of 112 inner surfaces 114 generally requires to be 1.6.

The outer surface 154 of connection-peg 152 is spherical surface.Spherical surface can be more simple with the inner surface 114 of female part 112, quick Ground forms line contact.And the leakproofness in order to guarantee female part 112 and the cooperation of connection-peg 152, the outer surface 154 of connection-peg 152 Roughness requirements be 1.6.It is in conjunction with Fig. 4 and Fig. 2 it is found that smaller for flow resistance when guaranteeing that medium flows through connection-peg 152, connection-peg 152 sphere shapes remained after top interception a part by hemisphere.Certainly, connection-peg 152 can also be with spherical surface On the basis of, add other shapes, such as the square bodily form.Connection-peg 152 forms line shown in Fig. 2 after being inserted into female part 112 and connects Touching state.Connection-peg 152 and female part 112 cooperate under the structure in Fig. 2, and female part 112 has continuous inclined surface, grafting First 152 have continuous spherical surface, so that the contact position that the cooperation of the two is best with a leakproofness always, better ensures that Leakproofness inside connector 100.

After connection-peg 152 is inserted into female part 112, for preferably both fixed sealing station, guarantee was used Leakproofness in journey, second part 150 further include fixing piece 156 (see Fig. 2) and the first linkage section 158.Connection-peg 152 and first Linkage section 158 is connected.Fixing piece 156 is sheathed on the first linkage section 158, and fixing piece 156 is detachably connected with connection-peg 152. Leakproofness and stability when in order to reinforce first part 110 and the connection of second part 150, utilize fixing piece 156 to realize first Part 110 and the fast quick-detach of second part 150, connection.

Wherein, the first linkage section 158 can be integrally formed connection type with connection-peg 152 and link together, can also To be by welding or other modes link together, the present embodiment is not especially limited.Fixing piece 156 and first connects Connect section 158 and can be kept completely separate and come, be also possible to be slidably arranged on the first linkage section 158, need to slide fixing piece 156 with When the connection of fixed first part 110 and second part 150, fixing piece 156 is moved to designated position.In the present embodiment, Gu Determining part 156 can remove completely from the first linkage section 158, until need in use, fixing piece 156 is put on the first connection again Section 158.Fixing piece 156 is shown in Fig. 2 the location of in the connection of fixed first part 110 and second part 150；Figure Fixing piece 156 does not cover on the first linkage section 158 in 4.

The connection cooperation of fixing piece 156 and connection-peg 152 can adopt in various manners, such as be threadedly engaged or its other party Formula, such as bolt is set on fixing piece 156, the pin hole with bolt cooperation is correspondingly arranged on connection-peg 152.Thread fiting mode It can be such that

Referring to figure 5., Fig. 5 show the structural schematic diagram of fixing piece 156.Fixing piece 156 is provided with internal screw thread 160, holds The outer surface 154 of interpolating unit 112 is provided with and the matched external screw thread 118 of internal screw thread 160.Fixing piece 156 and 112 screw thread of female part Match, on the basis of guaranteeing that the inner surface 114 of connection-peg 152 and female part 112 is completely embedded, realization is rapidly assembled and disassembled. Fixing piece 156 is hex nut, tightens fixing piece 156 by external tool (such as spanner) convenient for user.

Referring to figure 4., it in order to make fixing piece 156 when being fixed, can tighten as much as possible, to guarantee first part 110 and second part 150 being completely embedded property, the first linkage section 158 setting finite place piece 162 (be located on the first linkage section 158 On, naturally it is also possible to be discontinuous a pair of of protrusion), locating part 162 for prevent fixing piece 156 along the first linkage section 158 to The direction of connection-peg 152 falls off from the first linkage section 158.During fixing piece 156 is constantly screwed into female part 112, What the cooperation of locating part 162 can improve fixing piece 156 tightens degree, to improve the inner surface of connection-peg 152 Yu female part 112 114 being completely embedded property.In conjunction with Fig. 2 and Fig. 5 it is found that the abutting of 156 inside one end of locating part 162 and fixing piece can make to fix Part 156 is tightened as far as possible.

In the case where the connection sealing of first part 110 and second part 150 is protected, exist in order to facilitate pipeline The connection at 100 both ends of connector, and also to inner wall when welded pipe line in medium flow channels is preferably avoided to leave overlap, It can be in the following ways:

First linkage section 158 includes first segment 164 and second segment 166.First segment 164, second segment 166, connection-peg 152 according to Secondary connection.First segment 164 and second segment 166 can be integrated molding.The internal diameter of first segment 164 is greater than the internal diameter of second segment 166, As shown in Figure 4.The setting is convenient for the insertion into first segment 164 to need the pipeline connected, and in first segment 164 and second segment 166 Difference on diameter, so that pipeline can be only inserted into first segment 164, without can enter in second segment 166.To pipeline and When one section 164 of seam crossing is welded, inner wall (including the inner wall of the pipe, second segment in medium channel can be preferably avoided 166 inner wall etc.) on remain overlap, ensure that the slickness of medium channel inner wall.To the seam crossing of pipeline and first segment 164 into It is general only to need to live outermost joint seal in pipeline outer wall when row welding, even if solder has flowed in seam Face, but due to the difference on 166 internal diameter of first segment 164 and second segment, solder will also be blocked in first segment 164 without into Enter in second segment 166.

For convenience of connection of the pipeline in first part 110, first part 110 further includes the second linkage section 120, and second connects Section 120 is connect to be connected with female part 112.Second linkage section 120 is mainly used for connecting pipe, holds compared to pipeline to be connected directly between Interpolating unit 112, pipeline are connected to the second linkage section 120, can be reduced the processing request to female part 112, while also pipeline being avoided to weld Overlap residual when connecing (influences medium to 112 outer surface 154 (cooperation for influencing fixing piece 156) of female part or inner surface 114 Flowing).

Further, the second linkage section 120 includes third section 122 and the 4th section 124.Third section 122, the 4th section 124, hold Interpolating unit 112 is sequentially connected.Third section 122, the 4th section 124 and female part 112 can be integrally formed.The internal diameter of third section 122 Internal diameter greater than the 4th section 124.The setting convenient for into third section 122 insertion need the pipeline that connects, and third section 122 and the Difference on four section of 124 internal diameter, so that pipeline can be only inserted into third section 122, without can enter in the 4th section 124.? When being welded to the seam crossing of pipeline and third section 122, can preferably it avoid in the inner wall of medium channel (including in pipeline Wall, the 4th section 124 inner wall etc.) on remain overlap, ensure that the slickness of medium channel inner wall.To pipeline and third section 122 Seam crossing when being welded, it is general only to need to live outermost joint seal in pipeline outer wall, even if solder flows To seam, but due to the difference in third section 122 and the 4th section of 124 internal diameters, solder will also be blocked in third section 122 It is interior without enter the 4th section 124 in.

It should be noted that connector 100 other do not provide the position of roughness, can make its keep roughness 6.3. In addition, place, such as the medium flow channels inside connector 100 are not described in detail in connector 100, it can be by straight in Fig. 1-5 It connects and is derived from.

The working principle of connector 100 is:

Connection-peg 152 forms line contact condition shown in Fig. 2 after being inserted into female part 112.Fixing piece 156 is tightened in again It is in tight condition shown in Fig. 2 in female part 112.Two pipelines are being connected to first segment 164, in third section 122, It avoids remaining weldering on the inner wall (including inner wall of the pipe, the 4th section 124 of inner wall, inner wall of second segment 166 etc.) of medium channel Tumor ensure that the slickness of medium channel inner wall.Therefore, connector 100 has not only accomplished good airproof performance, and sealing is convenient, uses dimension Shield is convenient, and the requirement in connecting pipe to welding operation is not also high, it is also ensured that the inner wall of entire medium flow channels Overlap will not be remained, to ensure that the requirement of every field.In addition, the occupied area of connector 100 can be with very little, it can Meet use, the test request of precision instrument.

In another embodiment, a kind of pipeline can also be provided.It includes the first branch pipe, the second branch pipe and above-mentioned any one Kind connector 100.First branch pipe is connect with first part 110 far from one end of second part 150.Second branch pipe and second part 150 one end connections far from first part 110.First branch pipe, first part 110, second part 150, the second branch pipe successively connect Logical (connection be necessary, medium could circulate).Two branch pipes are attached using above-mentioned connector 100, are not only connected and are torn open It unloads all extremely convenient, and can also reach preferable sealing effect under conditions of not needing additional seal consumptive material, make the pipeline Working service is more convenient.Certainly, according to specifically used requirement, multiple connectors 100 can be used to connect more branch pipes.

The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, for this field Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model, Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of connector, which is characterized in that including the first part being detachably connected and second part, the first part includes Female part, the second part include connection-peg, and the connection-peg is matched with the female part grafting, and the connection-peg is outer Surface is contacted with the grafting contact form of the inner surface of the female part for line.

2. connector according to claim 1, which is characterized in that the inner surface of the female part limits to form round table-like One cavity.

3. connector according to claim 1 or 2, which is characterized in that the outer surface of the connection-peg is spherical surface.

4. connector according to claim 3, which is characterized in that the second part further includes fixing piece and the first connection Section, the connection-peg are connected with first linkage section, and the fixing piece is sheathed on first linkage section, and the fixing piece It is detachably connected with the connection-peg.

5. connector according to claim 4, which is characterized in that the fixing piece is provided with internal screw thread, the female part Outer surface is provided with and the matched external screw thread of the internal screw thread.

6. connector according to claim 4, which is characterized in that finite place piece, the limit is arranged in first linkage section Part is for preventing the fixing piece from falling off along first linkage section to the direction of the connection-peg from first linkage section.

7. connector according to claim 4, which is characterized in that first linkage section includes first segment and second segment, institute It states first segment, the second segment, the connection-peg to be sequentially connected, the internal diameter of the first segment is greater than the internal diameter of the second segment.

8. connector according to claim 3, which is characterized in that the first part further includes the second linkage section, and described Two linkage sections are connected with the female part.

9. connector according to claim 8, which is characterized in that second linkage section includes third section and the 4th section, institute State third section, the 4th section described, female part is sequentially connected, the internal diameter of the third section is greater than the 4th section of the internal diameter.

10. a kind of pipeline, which is characterized in that including the first branch pipe, the second branch pipe and as claim 1-9 is described in any item Connector, first branch pipe are connect with the first part far from one end of the second part, second branch pipe with it is described Second part is connected far from one end of the first part, first branch pipe, the first part, the second part, institute The second branch pipe is stated to be sequentially communicated.