CN107202218A

CN107202218A - One kind insertion enclosed type connecting interface

Info

Publication number: CN107202218A
Application number: CN201710588018.1A
Authority: CN
Inventors: 程金煦
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-07-06
Filing date: 2017-07-06
Publication date: 2017-09-26

Abstract

One kind insertion enclosed type connecting interface, it is mutually inserted and is constituted with plug by taking the lead, its O-ring seal docking port in the annular seal space with uniform rings gap is sealed, its lock ring prevents pulling for interface in the bayonet socket recess of closure, the interface can eliminate pipeline with certain axial displacement in take the lead by plug and expand with heat and contract with cold the tensile stress of generation, while the interface can turn into the interface that the mutual wedging of socket joint head be connected again.

Description

One kind insertion enclosed type connecting interface

Technical field

Patent of the present invention is related to a kind of pipe joint, is especially suitable for the interface of the pipeline of the pumped (conveying) medium of bright dress or concealed installation.

Background technology

Pipeline is the lifeline in city, the connection reliability of pipeline connecting interface is improved, the need for being city normal life.

At present, building, the pipeline of municipal works laying, based on the connection of flange, welding and rubber sealing.Flange, welding Connection, which belongs to, to be rigidly connected, and not only difficulty of construction is big, and pipeline can also form stress concentration, the accident of booster easily occur；Glue Circle is tightly connected and belongs to flexible connection, and pipeline is suitable for certain differential settlement, but exist interface tension take off, leakage performance The shortcoming of difference.Therefore, exploitation leakage resistance energy height and easy pipe joint of constructing, are the need for improving pipe safety reliability Will.

The content of the invention

Installed simply it is an object of the invention to provide one kind and application cost is low, and the pipe safety reliability of connection is high A kind of insertion enclosed type connecting interface, to solve the problem of current pipeline has explosive, easy to leak.

The interface of the present invention is made up of (see Fig. 1) plug 1 and 2 mutual cooperations insertion of taking the lead, and plug 1 is inside successively by port There are cylindrical seal section 8, inserting paragraph 14, projection 3 and Locked segment 13；Take the lead 2 inwardly has port endoporus 11, bayonet socket recessed successively by port Position 7, conical inclined surface 6, sealing endoporus 10 and cooperation endoporus 9.Cylindrical seal section 8 and the external diameter of inserting paragraph 14 are interior than coordinating respectively Hole 9 and sealing endoporus 10 are slightly smaller, and O-ring seal 5 is in the annular seal space 12 cooperatively formed by cylindrical seal section 8 with sealing endoporus 10 Interior, docking port is sealed.Raised 3 external diameters are more slightly smaller than port inner diameter 11, and projection 3 is in lock ring 4 that is circular and having opening In bayonet socket recess 7 between port endoporus 11, its annulus external diameter is bigger than the internal diameter of port endoporus 11, and its internal radius is than raised 3 external diameter is small.When 2 position on earth is taken the lead in the insertion of plug 1, the minimum between the angle head cylindrical and port endoporus 11 of Locked segment 13 Ring gap is bigger than the line footpath of lock ring 4, makes lock ring 4 to be entered from port endoporus 11 in bayonet socket recess 7, when lock ring enters card inlet After recess 7, plug 1 is when pumped (conveying) medium pressure or external force are displaced outwardly, before projection 3 is not contacted with lock ring 4, Locked segment 13 It is displaced outwardly, makes the cylindrical circle gap between port endoporus 11 of the end face of Locked segment 13 be less than the line footpath of lock ring 4, by lock ring 4 Close in bayonet socket recess 7, prevent pulling for socket joint head, form insertion enclosed type connecting interface.

Lay, when the pipeline work temperature difference is larger, 2 arrived because plug 1 is inserted into take the lead when pipeline is used for hot and cold water or airbreak Behind bottom, projection 3 can be moved to the right and is contacted with each other place with lock ring 4.I.e. each connecting interface has certain axial stretching amount Expanded with heat and contract with cold the tensile stress of generation to eliminate pipeline, it is to avoid pipe stress concentrates the booster phenomenon caused.Meanwhile, this patent Round O-ring seal, in socket joint head mutually axially displacement, is to make axially opposite position to socket joint head in the way of rolling is rolled Move, so as to reduce the abrasion of cushion rubber and axial float face, improve the security reliability of sealing joint.

When the Locked segment 13 of plug 1 is the conical inclined surface inwardly gradually increased by end face, its conical inclined surface it is small Footpath adds the line footpath size of two lock rings 4 to be less than the internal diameter of bayonet socket recess 7；The big footpath of its conical inclined surface adds the line of two snap rings 4 Footpath size is more than the internal diameter of bayonet socket recess 7.Plug inject take the lead after, plug 1 pumped (conveying) medium pressure or external force effect under, It is displaced outwardly, it can wedge the annulus endoporus of the lock ring 4 with opening in the Locked segment 13 on circular cone inclined-plane, and socket joint head is mutually firm Gu wedging is together, insertion enclosed type wedging connecting interface is formed.

Because the external diameter of the cylindrical seal section 8 of this patent is identical with tube outer diameter, so only needing to have inserting paragraph 14 (see figure 2) collar 15 of projection 3 and Locked segment 13 puts pipe, and the collar 15 is fixed on into the corresponding of pipe using wind weldering or electric welding On position, just can make the end of pipe turns into plug, then can be connected with each other with the pipe fitting with bellmouth or pipe.

Each locking connecting interface of this patent can axial stretching displacement be equal to plug and inject to take the lead and arrive slotting afterwards on earth The raised distance for being displaced to snap ring contact of head, before plug projection 3 is contacted with lock ring 4, lock ring is closed at card by Locked segment In stomatodeum position, lock ring endurance is made also not remove bayonet socket recess.Therefore, the pipeline of insertion enclosed type connection, which has, eliminates pipeline The function for tensile stress of expanding with heat and contract with cold, its pipeline installed can remove the pipe fitting using telescopic joint from.

Cooperation endoporus and sealing endoporus due to the cylindrical seal section of plug and the external diameter of inserting paragraph respectively than taking the lead is slightly smaller, So it is interior to be taken the lead by plug reeve, the mutual elastic deformation of circular arc degree of socket joint head can be forced to be formed unanimously, the circle of annular seal space is made Czermak space is consistent, and solves the ring compression of flexible interface O-ring seal than the uneven Seepage caused.When pipeline heat During swollen shrinkage, plug is circular at that time by interior axial displacement of taking the lead, eliminating the tensile stress of the generation of expanding with heat and contract with cold of pipeline O-ring seal be in the way of overturning rolling with cylindrical seal section and the axially opposite displacement of sealing endoporus progress, so as to reduce The abrasion of cushion rubber.It is in annulus external diameter and the internal diameter external diameter bigger than port endoporus respectively and plug projection of the lock ring of bayonet socket recess It is small, form the lock ring for preventing socket joint head from pulling.When the Locked segment of plug is in conical inclined surface, the diameter of its end adds two Lock ring line footpath size, less than the internal diameter of bayonet socket recess；Diameter at the big footpath of its conical inclined surface adds two lock ring line footpath sizes, More than the internal diameter of bayonet socket recess.When socket joint head is mutually pulled outwardly shifting, has by the Locked segment wedging in conical inclined surface and open The annulus endoporus of the lock ring of mouth, can link together the mutual wedging of socket joint head, as insertion enclosed type wedging connecting interface. The external diameter of the cylindrical seal section of plug is identical with the external diameter of pipe, the collar internal diameter ratio pipe with inserting paragraph, raised and Locked segment Sub- external diameter is slightly larger, and the collar is put after pipe, and uses welding with fixation, and tube end just can be made to turn into plug；Pipe fitting and pipe Son end by swollen hole forging or casting cutting or rolling etc. moulding process, as with take the lead or plug insert Enter enclosed type pipe fitting, insertion enclosed type pipe fitting or pipe with plug or the port taken the lead are connected with each other, its pipeline turns into Insert enclosed type connecting interface pipeline；Axially scalable displacement is equal to after plug injects and take the lead on earth insertion locking connecting interface The distance contacted with lock ring is displaced to plug projection, before plug projection is contacted with lock ring, Locked segment closes lock ring In bayonet socket recess.

Brief description of the drawings

Fig. 1, insertion enclosed type connecting interface schematic diagram

1st, plug；2nd, take the lead；3rd, it is raised；4th, lock ring；5th, O-ring seal；6th, conical inclined surface；7th, bayonet socket recess；8th, it is cylindrical Seal section；9th, endoporus is coordinated；10th, endoporus is sealed；11st, port endoporus；12nd, annular seal space；13rd, Locked segment；14th, inserting paragraph

Fig. 2, lantern ring type plug schematic diagram

3rd, it is raised；13rd, Locked segment；14th, inserting paragraph；15th, the collar；8th, inserting paragraph

Embodiment

Circular O-ring seal 5 is placed in the port (see Fig. 1) of the cylindrical seal section 8 of plug 1, the insertion of plug 1 is held First 2 positions on earth, in this process, after circular O-ring seal 5 is contacted with conical inclined surface 6, O-ring seal 5 is cylindrical Continuing under friction for seal section 8, obtains the moment of torsion that upset is rolled, is rolled into the way of overturning rolling from conical inclined surface 6 In sealing hole 10, be in by cylindrical seal section 8 with the annular seal space 12 that constitutes in sealing endoporus 10, and with from rolling into circular cone inclined-plane 6 obtain seal compression ratio, and docking port is sealed.

2 are taken the lead on earth behind position in the insertion of plug 1, the smallest circle between the angle head cylindrical and port endoporus 11 of Locked segment 13 Czermak space is bigger than the line footpath of lock ring 4, will fold opening by external force in lock ring 4 that is circular and having opening, reduces its annulus External diameter after, in push-in port endoporus 11, and by the rebound deformation that swells of its circle diameter, be in bayonet socket recess 7, at that time Because the circle diameter and internal diameter of lock ring 4 are bigger than the internal diameter of port endoporus 11 small with projection 3 external diameter respectively, so being held as prevention The lock ring that plug is pulled.

When plug 1 bears the pressure of pumped (conveying) medium or bear external force to be displaced outwardly, do not contacted in projection 3 with lock ring 4 Before, the angle head cylindrical of its Locked segment 13 and take the lead 2 port endoporus 11 between ring gap be less than lock ring 4 line footpath, will Lock ring 4 is closed in bayonet socket recess 7, is made the connecting interface of pipeline and is turned into locking connecting interface.

When Locked segment 13 is the conical inclined surface inwardly gradually increased by end face, the path of its conical inclined surface adds two The size of the line footpath of lock ring 4, less than the internal diameter of bayonet socket recess 7；The big footpath of its conical inclined surface adds the line footpath size of two lock rings 4, More than the internal diameter of bayonet socket recess 7.After plug is injected and taken the lead, plug 1 is under pressure or the external force effect of pumped (conveying) medium, outside position Move, it enters the annulus endoporus of the lock ring 4 with opening in the wedge of Locked segment 13 of conical inclined surface, by the mutual wedging of socket joint head one Rise, form insertion enclosed type wedging connecting interface.

Claims

1. one kind insertion enclosed type connecting interface, it is characterised in that：Interface is mutually injected with plug by taking the lead and constituted, and plug is by holding Mouth is inwardly made up of cylindrical seal section, inserting paragraph, projection and Locked segment successively；Take the lead by port inwardly successively by port endoporus, Bayonet socket recess, circular cone inclined-plane, sealing endoporus and cooperation endoporus composition；After socket joint head is mutually inserted, O-ring seal is in sealing Intracavitary, docking port is sealed；Lock ring is closed in bayonet socket recess, prevents pulling for socket joint head, realizes that pipeline inserts locking Formula connecting interface.

2. a kind of insertion enclosed type connecting interface according to claim 1, it is characterised in that：The cylindrical seal section of plug and The external diameter of inserting paragraph, it is more slightly smaller than the cooperation endoporus taken the lead and sealing endoporus respectively, taken the lead by plug insertion in, force take the lead and The mutual elastic deformation of circular arc degree of plug is formed unanimously, makes the ring gap of annular seal space be consistent.

3. a kind of insertion enclosed type connecting interface according to claim 1, it is characterised in that：When installing initial, it is in slotting The circular O-ring seal of cylindrical seal section port is during being moved axially into of cylindrical seal section, to obtain upset and roll Moment of torsion, in the way of overturning rolling, rolled into from conical inclined surface in sealing endoporus, and seal compression ratio obtained with this, close Envelope intracavitary docking port is sealed.

4. a kind of insertion enclosed type connecting interface according to claim 1, it is characterised in that：Insert locking connecting interface axle It is equal to plug to scalable displacement and injects to take the lead and arrive plug projection afterwards on earth and be displaced to the distance that is contacted with lock ring, when pipeline is warm During swollen shrinkage, plug is expanded with heat and contract with cold the tensile stress of generation by interior axial displacement of taking the lead, eliminating pipeline, at that time, circular O-ring seal be in the way of overturning rolling with cylindrical seal section and the axially opposite displacement of sealing endoporus progress.

5. a kind of insertion enclosed type connecting interface according to claim 1, it is characterised in that：The raised external diameter ratio of plug is held The port endoporus of head is slightly smaller, is in the annulus external diameter and internal diameter of the lock ring of bayonet socket recess respectively than port endoporus greatly and than plug Raised external diameter is small, forms the lock ring for preventing socket joint head from pulling.

6. a kind of insertion enclosed type connecting interface according to claim 1, it is characterised in that：Taken the lead on earth when plug is injected Afterwards, the minimum ring gap between the angle head cylindrical of the Locked segment of plug and the port endoporus taken the lead is more than the line footpath of lock ring, leads to Cross external force military order to reduce after its annulus external diameter in circular, to have opening lock ring, bayonet socket recess can be entered from port endoporus It is interior, and the rebound deformation swollen by its annulus external diameter is stuck in bayonet socket recess；When plug stress is displaced outwardly, it is raised with Before lock ring contacts with each other, the ring gap between Locked segment angle head cylindrical and port endoporus is less than the line footpath of lock ring, by lock ring Close in bayonet socket recess, bayonet socket recess can not be removed by bearing thrust.

7. a kind of insertion enclosed type connecting interface according to claim 1, it is characterised in that：When the Locked segment of plug is in circle When boring inclined-plane, the diameter of its end adds two lock ring line footpath sizes, less than the internal diameter of bayonet socket recess, the big footpath of its conical inclined surface The diameter at place adds two lock ring line footpath sizes more than the internal diameter of bayonet socket recess, in the outwards mutually displacement of socket joint head, in cone The annulus endoporus of the lock ring of the Locked segment wedging with opening on inclined-plane, by the mutual wedging of socket joint head together, forms insertion locking Formula wedging connecting interface.

8. a kind of insertion enclosed type connecting interface according to claim 1, it is characterised in that：The cylindrical seal section of plug External diameter is identical with the external diameter of pipe, and the collar internal diameter ratio tube outer diameter with inserting paragraph, raised and Locked segment is slightly larger, will cover ring set Enter after pipe, and use welding with fixation, tube end turns into plug.

9. a kind of pipe and pipe fitting, it is characterised in that：It contains the insertion enclosed type connection described in any one of claim 1~8 Interface.