CN201096241Y - Pipeline enlarging jointing construction - Google Patents
Pipeline enlarging jointing construction Download PDFInfo
- Publication number
- CN201096241Y CN201096241Y CNU2007201845053U CN200720184505U CN201096241Y CN 201096241 Y CN201096241 Y CN 201096241Y CN U2007201845053 U CNU2007201845053 U CN U2007201845053U CN 200720184505 U CN200720184505 U CN 200720184505U CN 201096241 Y CN201096241 Y CN 201096241Y
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- CN
- China
- Prior art keywords
- nut
- sealing
- seal
- linkage structure
- enlarging
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000010276 construction Methods 0.000 title 1
- 238000007789 sealing Methods 0.000 abstract description 18
- 230000000694 effects Effects 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 2
- 230000008602 contraction Effects 0.000 abstract 1
- 230000004907 flux Effects 0.000 abstract 1
- 239000002131 composite material Substances 0.000 description 27
- 229920003023 plastic Polymers 0.000 description 7
- 239000004033 plastic Substances 0.000 description 7
- 230000002950 deficient Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Joints With Pressure Members (AREA)
Abstract
Disclosed is a pipe flaring and connecting structure, belonging to pipeline connection technology. Current pipe flaring and connecting structures have the defect of small sealing area, which leads to leakage, and the defect that the connection part contracts. The utility model comprises a main body which is provided with at least two connection ends which are intercommunicated through a passage inside the main body; at least one connection end is composed of a male screw segment and a sealing segment; the outer surface of the sealing segment is shaped to be a conical surface and is provided with a circular sealing lug boss; a nut matching with the male screw segment is provided with a female screw segment and a tightening structure which respectively correspond to the male screw segment and the sealing segment. Such pipe flaring and connecting structure will not lead to the contraction of the joint, so with a fixed amount of material, the connecting structure can be made to have the maximum flux; since the circular sealing lug boss and the tightening structure can be combined through the combination of multiple parts, multiple sealing can be developed, thus enlarging sealing area and ensuring sealing effect.
Description
The utility model belongs to pipeline connection technology, is used for the connection to system's pipelines such as plumbing, air feed, chemical industry, heating power, a kind of specifically pipeline enlarging linkage structure.
The connection of existing composite metal-plastic pipe normally realizes by screw thread ferrule-type pipe fitting (joint).But the connection part of existing pipe fitting and composite metal-plastic pipe lacks necessary seal approach reliably, and the sealing surface that seals is less, behind the use certain hour leakage phenomenon can take place; The more important thing is, connection part at pipe fitting and composite metal-plastic pipe has tangible undergauge phenomenon, promptly cause the internal diameter of the internal diameter of composite pipe and pipe fitting passage inconsistent because of the influence that is connected sealing configuration, the circulation bore of whole pipe is not consistent with the internal diameter of composite pipe or pipe fitting passage after causing thus connecting, and for the flow of the whole pipe that guarantees to require, can only be by internal diameter at increase composite pipe or pipe fitting passage, this certainly will cause the waste of material and the increase of cost.
The technical assignment of the technical problems to be solved in the utility model and proposition at first is to overcome existing product because of the existence of connection part undergauge phenomenon causes the waste of material and the defective that cost increases, and provides a kind of sealability high pipeline enlarging linkage structure.
The technical problem that the utility model also will solve simultaneously and the technical assignment of proposition are the defectives that overcomes the less easy generation leakage of sealing surface of existing product existence, and a kind of pipeline enlarging linkage structure of low cost of manufacture is provided.
For this reason, the utility model is taked following technological scheme:
Pipeline enlarging linkage structure, has a body, on this body, have at least two connecting ends, communicate with each other by intrinsic passage between each connecting end, at least one connecting end that it is characterized in that described body comprises external thread section and seal section, and the outer surface of described seal section is arranged to the conical surface and the annular seal projection is set on the conical surface; Matching with described external thread section is provided with nut, and corresponding with described external thread section and seal section respectively internal thread segment and tightening structure are set on this nut.
As the further of technique scheme improved and replenish, the utility model also comprises following additional technical feature:
Described annular seal projection comprises the bulge loop with described seal section one, and described tightening structure is the tight ring that places in the described nut.
Described nut has a Restricted edge, and described tight ring is positioned at the inboard of this Restricted edge.
The internal surface of described tight ring has tapering.
The endoporus of described tight ring is isometrical hole, and the end of its endoporus is provided with fillet or chamfering.
Described annular seal projection comprises the seal ring that is arranged on the described seal section, and described tightening structure is the cutting ferrule conical surface that is formed on the described nut.
Described seal section is provided with annular groove, and described seal ring places in the annular groove.
The position is provided with clamping part between each connecting end.
The utility model is by being arranged to the outer surface of connecting end seal section the conical surface and the annular seal projection is set on the conical surface, tightening structure is set on nut simultaneously, when making internal thread segment on the nut be connected, make annular seal projection and tightening structure contact closely and realize sealing at the inner and outer surface of the tube end of enlarging with the external thread section of body connecting end; This linkage structure is carried out enlarging at the connecting tube period of the day from 11 p.m. to 1 a.m with the end of pipe, therefore can not cause the undergauge phenomenon at connection part, can guarantee on the basis of using quantitative material that thus linkage structure has maximum discharge value; In addition, because annular seal projection and tightening structure can be arranged to multiple structure structure combining form, therefore can form multi-sealedly, the increase sealing area is guaranteed sealing effect.
Fig. 1 is a kind of structure of the present utility model schematic representation in use.
Fig. 2 is an another kind of structure of the present utility model schematic representation in use.
Fig. 3 is the third structure of the present utility model schematic representation in use.
Fig. 4 (A), (B), (C) are three kinds of structural representations of tight ring of the present utility model.
Among the figure:
1-body, 11-connecting end, 12-passage, 13-seal section, 13A-annular seal projection, the outer surface of 131-seal section, 132-annular groove, 133-seal ring, 134-bulge loop, 14-external thread section, 15-clamping part;
2-nut, 21-internal thread segment, 22-tightening structure, 221-cutting ferrule conical surface, 222-Restricted edge, 223-tight ring;
3-close pipe, 31-through the composite pipe end of enlarging.
Embodiment one
Pipeline enlarging linkage structure as shown in Figure 1 mainly is made of two-part:
First straight coupling body 1, this body 1 is by two connecting ends 11 are arranged, communicate with each other by intrinsic passage 12 between two connecting ends 11, two connecting ends 11 of body 1 respectively have an external thread section 14 and seal section 13, be arranged to the conical surface and offer two annular grooves 132 on the conical surface at the outer surface 131 of seal section 13, each annular groove 132 is built-in with seal ring 133 as annular seal projection 13A; Be provided with clamping part 15 (as hexagon nut) in the intermediate portion of body 1 so that when connecting, use corresponding instrument (as shfting wrench) clamping; Said structure is made integral structure by plastics by injection molding way;
It two is to be used for the nut 3 that is connected with external thread section 14 on the body 1, and this nut 3 has the internal thread segment 21 that is connected as a single entity and as the cutting ferrule conical surface 221 of tightening structure 22; And this nut 3 also is made of plastics integral structure.
The pipeline enlarging linkage structure of said structure, when the composite pipe 3 to corresponding specification connects, nut 2 is enclosed within on the composite pipe 3, the internal thread segment 21 of nut 2 is towards the end of composite pipe 3, and the end of composite pipe 3 carried out enlarging, make its internal surface have tapering, to be enclosed within on the seal section 13 of body 1 through the end 31 of the composite pipe of enlarging afterwards, nut 2 is connected with the external thread section 14 of body 1, when on the external thread section 14 that nut 2 is tightened in body 1, the cutting ferrule conical surface 221 of nut 2 will be pressed on the outer surface with tapering 131 of seal section 13 through the end 31 of the composite pipe of enlarging, two seal rings 133 are squeezed and resiliently deformable and composite pipe inwall are close to, and realize good sealing effect.
Embodiment two
The annular seal projection 13A that pipeline enlarging linkage structure as shown in Figure 2, itself and embodiment's one difference part only are at body 1 is a bulge loop 134; In order to guarantee that bulge loop 134 cooperates with nut 2, nut 2 is provided with Restricted edge 222, (structure of tight ring 223 is shown in Fig. 4 (A), 4 (B), 4 (C) for tight ring 223, its endoporus is isometrical hole, the end is provided with fillet or chamfering, perhaps the internal surface of tight ring is arranged to tapering, is convenient to thus on the pipe after the enlarging to move and pipe is tightened, eliminate that cause and the defective seal section poor fit after the undue enlarging of pipe) place the inboard of this Restricted edge 222.All the other structures are identical with embodiment one, do not repeat them here.During connection, the nut sleeve that will have tight ring 223 is on composite pipe 3, the internal thread segment 21 of nut 2 is towards the end of composite pipe 3, and the end of composite pipe 3 carried out enlarging, make its internal surface have tapering, to be enclosed within on the seal section 13 of body 1 through the end 31 of the composite pipe of enlarging afterwards, nut 2 is connected with the external thread section 14 of body 1, when on the external thread section 14 that nut 2 is tightened in body 1, tight ring 223 in the nut 2 will be pressed on the outer surface with tapering 131 of seal section 13 through the end 31 of the composite pipe of enlarging, two bulge loops 134 are squeezed and resiliently deformable and composite pipe inwall are close to, and realize good sealing effect.
Embodiment three
Pipeline enlarging linkage structure as shown in Figure 3, itself and embodiment's one difference part is: set up a bulge loop 134 on the seal section 13 of main body again; And nut 2 is provided with Restricted edge 222, and Restricted edge 222 is provided with the cutting ferrule conical surface 221, and tight ring 223 places the inboard of this Restricted edge 222.All the other structures are identical with embodiment one, do not repeat them here.During connection, the nut sleeve that will have tight ring 223 is on composite pipe 3, the internal thread segment 21 of nut 2 is towards the end of composite pipe 3, and the end of composite pipe 3 carried out enlarging, make its internal surface have tapering, to be enclosed within on the seal section 13 of body 1 through the end 31 of the composite pipe of enlarging afterwards, nut 2 is connected with the external thread section 14 of body 1, when on the external thread section 14 that nut 2 is tightened in body 1, the tight ring 223 in the nut 2 and the cutting ferrule conical surface 221 will be pressed on the outer surface with tapering 131 of seal section 13 through the end 31 of the composite pipe of enlarging, two seal rings 133 and bulge loop 134 are squeezed and resiliently deformable and composite pipe inwall are close to, and realize good sealing effect.
In addition, under technology enlightenment of the present utility model, the utility model is not limited in the foregoing description, and described seal section can be connected the end of body, also can be structure as a whole with body; Manufactured materials not only can be plastics, also can be metal; And the main body structure form, also can be other as structural types such as threeway, four-way, elbows, and the quantity of seal ring and bulge loop also is not limited to the foregoing description, can determine according to practical situation in the specific implementation; And purposes of the present utility model, except connecting the composite pipe described in the foregoing description, also can connect plastic tube or other kinds can enlarging pipe; Will not give unnecessary details one by one at this.
Claims (8)
1, pipeline enlarging linkage structure, has a body (1), on this body (1), have at least two connecting ends (11), communicate with each other by the passage (12) in the body (1) between each connecting end (11), at least one connecting end (11) that it is characterized in that described body (1) comprises external thread section (14) and seal section (13), and the outer surface (131) of described seal section (13) is arranged to the conical surface and annular seal projection (13A) is set on the conical surface; Matching with described external thread section (14) is provided with nut (2), and corresponding with described external thread section (14) and seal section (13) respectively internal thread segment (21) and tightening structure (22) are set on this nut (2).
2, pipeline enlarging linkage structure according to claim 1, it is characterized in that described annular seal projection (13A) comprises and the bulge loop (134) of described seal section (13) one that described tightening structure (22) is for placing the tight ring (223) in the described nut (2).
3, pipeline enlarging linkage structure according to claim 2 is characterized in that described nut (2) has a Restricted edge (222), and described tight ring (223) is positioned at the inboard of this Restricted edge (222).
4, pipeline enlarging linkage structure according to claim 2 is characterized in that the internal surface of described tight ring (223) has tapering.
5, pipeline enlarging linkage structure according to claim 2, the endoporus that it is characterized in that described tight ring (223) is isometrical hole, the end of its endoporus is provided with fillet or chamfering.
6, according to the described pipeline enlarging of the arbitrary claim of 1-5 linkage structure, it is characterized in that described annular seal projection (13A) comprises the seal ring (133) that is arranged on the described seal section (13), described tightening structure (22) is for being formed on the cutting ferrule conical surface (221) on the described nut (2).
7, pipeline enlarging linkage structure according to claim 6 is characterized in that described seal section (13) is provided with annular groove (132), and described seal ring (133) places in the annular groove (132).
8, pipeline enlarging linkage structure according to claim 1 is characterized in that the position is provided with clamping part (15) between each connecting end (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201845053U CN201096241Y (en) | 2007-10-20 | 2007-10-20 | Pipeline enlarging jointing construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201845053U CN201096241Y (en) | 2007-10-20 | 2007-10-20 | Pipeline enlarging jointing construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201096241Y true CN201096241Y (en) | 2008-08-06 |
Family
ID=39923294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201845053U Expired - Fee Related CN201096241Y (en) | 2007-10-20 | 2007-10-20 | Pipeline enlarging jointing construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201096241Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287561A (en) * | 2011-07-25 | 2011-12-21 | 李耀强 | Pressure regulator |
| CN106499886A (en) * | 2016-12-22 | 2017-03-15 | 海盐县海管管件制造有限公司 | The multi-sealed cutting ferrule of one kind combination |
| CN110107750A (en) * | 2019-05-07 | 2019-08-09 | 杨启敖 | Pipe jointing |
| CN112856059A (en) * | 2021-01-07 | 2021-05-28 | 湖南天力瑞家新材科技股份有限公司 | Pipe joint |
-
2007
- 2007-10-20 CN CNU2007201845053U patent/CN201096241Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102287561A (en) * | 2011-07-25 | 2011-12-21 | 李耀强 | Pressure regulator |
| CN106499886A (en) * | 2016-12-22 | 2017-03-15 | 海盐县海管管件制造有限公司 | The multi-sealed cutting ferrule of one kind combination |
| CN110107750A (en) * | 2019-05-07 | 2019-08-09 | 杨启敖 | Pipe jointing |
| CN112856059A (en) * | 2021-01-07 | 2021-05-28 | 湖南天力瑞家新材科技股份有限公司 | Pipe joint |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080806 Termination date: 20111020 |