CN215371467U - Flexible composite pipe joint - Google Patents
Flexible composite pipe joint Download PDFInfo
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- CN215371467U CN215371467U CN202121531720.2U CN202121531720U CN215371467U CN 215371467 U CN215371467 U CN 215371467U CN 202121531720 U CN202121531720 U CN 202121531720U CN 215371467 U CN215371467 U CN 215371467U
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- pipe
- inner core
- buckling
- flexible composite
- face
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Abstract
The utility model discloses a flexible composite pipe joint, which comprises a middle connecting pipe, wherein the middle connecting pipe comprises an isolating part playing the role of a middle shaft shoulder, connecting surfaces with external threads are respectively arranged at two sides of the isolating part, the outer ends of the connecting surfaces are respectively and fixedly connected with inner core pipes, outer locking sleeves are respectively and threadedly connected on the connecting surfaces, a middle sleeve is locked and sleeved between the outer locking sleeves and the inner core pipes, an inner core pipe buckling and pressing working surface is arranged outside the inner core pipes, a middle sleeve buckling and pressing working surface is arranged inside the middle sleeve, the inner core pipe buckling and pressing working surfaces and the middle sleeve buckling and pressing working surface are respectively of a uniform and intermittent convex concave-convex structure, the outer surface of the middle sleeve is a conical ring surface, the inner surface of the outer locking sleeve is a conical ring surface correspondingly matched with the locking middle sleeve, and a buckling and pressing space is formed between the middle sleeve and the inner core pipes. The flexible composite pipe joint can not cause any influence on the glass fiber pipe in the buckling process, effectively avoids stress concentration, and improves the pressure resistance and the buckling success rate.
Description
Technical Field
The utility model relates to the field of joints for composite pipes, in particular to a flexible composite pipe joint wound by glass fiber tapes.
Background
The flexible composite pipe wound by the glass fiber tape is a novel high-performance glass fiber reinforced composite pipeline. The reinforced layer is formed by winding a PP/PE glass fiber prepreg tape on an inner layer pipe formed by extruding thermoplastic plastics in a multi-layer angle staggered mode, and then the thermoplastic plastics are extruded to serve as an outer protective layer. The composite pipe has the advantages of light weight, high strength, low cost, corrosion resistance, environmental friendliness and the like, and is applied to land oil, gas and water gathering and transportation pipelines, high-pressure water injection pipelines, hot washing pipelines, marine oil extraction vertical pipes and the like. The glass fiber continuous reinforced thermoplastic composite pipe is used as a plastic pipe, the connection mode is mostly hot melt connection, and the problems of low pressure resistance, easy fracture of interface connection and the like exist; in addition, the conventional metal buckling joint of the thermoplastic composite pipe easily causes stress concentration at the buckling part, glass fibers are greatly damaged, and the problems of low pressure resistance and the like are caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model designs a flexible composite pipe joint.
The utility model adopts the following technical scheme:
the utility model provides a flexible composite pipe joint, including the intermediate junction pipe, the intermediate junction pipe is including playing the isolation part of middle shaft shoulder effect, the isolation part both sides are provided with the connection face that has the external screw thread respectively, connect the face outer end fixedly connected with inner core pipe respectively, there is outer locking sleeve pipe threaded connection respectively on connecting the face, locking sleeve pipe has well sleeve pipe between outer locking sleeve pipe and the inner core intertube, the inner core pipe is provided with the inner core pipe outward and buckles the working face, well intraductal well sleeve pipe that is provided with buckles the working face, inner core pipe buckles the working face and well sleeve pipe buckle the working face and be the bellied concave-convex structure of even intermittent type respectively, well sleeve pipe surface is the toper anchor ring, the toper anchor ring that the outer locking sleeve pipe inner surface set up for corresponding in the locking sleeve pipe cooperation, well sleeve pipe and inner core intertube form and detain the space of pressing.
Preferably, the buckling and pressing working surface of the inner core pipe corresponds to the intermittent convex parts on the buckling and pressing working surface of the middle sleeve in a staggered mode.
Preferably, the uneven structure of the uniform intermittent projections is an uneven structure having a circular arc-shaped section.
Preferably, the uneven structure of the uniform intermittent bulges is an uneven structure with a short trapezoidal section.
Preferably, the buckling and pressing working surface of the inner core pipe and the buckling and pressing working surface of the middle sleeve are subjected to surface roughening processing.
Preferably, the inner core tube, the connecting surface and the isolation part are integrally injection molded.
The utility model has the beneficial effects that: the glass fiber has lower shearing strength, the winding thickness of the glass fiber tape is only 0.3mm, the glass fiber tape is extremely easy to be sheared and damaged, the flexible composite pipe joint wound by the glass fiber tape cannot cause any influence on the glass fiber pipe in the buckling and pressing process, the stress concentration is effectively avoided, and the pressure resistance and the buckling and pressing success rate are improved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view at I of FIG. 1;
FIG. 3 is a schematic structural view of a convex-concave structure of the circular arc-shaped intermittent protrusions of the present invention;
FIG. 4 is a schematic structural view of the low stepped intermittent raised relief structure of the present invention;
in the figure: 1. the middle connecting pipe, 2, the inner core pipe, 3, the middle sleeve, 4, the outer locking sleeve, 5, the flexible composite pipe, 6, the inner core pipe buckling and pressing working surface, 7, the middle sleeve buckling and pressing working surface, 8, the connecting surface, 9 and the isolating part.
Detailed Description
The technical scheme of the utility model is further described in detail by the following specific embodiments in combination with the attached drawings:
example 1: as shown in the attached drawings 1-3, a flexible composite pipe joint comprises a middle connecting pipe 1, the middle connecting pipe comprises an isolating part 9 playing a role of a middle shaft shoulder, two sides of the isolating part are respectively provided with a connecting surface 8 with external threads, the outer end of the connecting surface is respectively and fixedly connected with an inner core pipe 2, the connecting surface is respectively and threadedly connected with an outer locking sleeve 4, a middle sleeve 3 is sleeved between the outer locking sleeve and the inner core pipe, the outer of the inner core pipe is provided with an inner core pipe buckling working surface 6, the middle sleeve is internally provided with a middle sleeve buckling working surface 7, the inner core pipe buckling working surface and the middle sleeve buckling working surface are respectively of a uniform and intermittent convex concave-convex structure, the outer surface of the middle sleeve is a conical ring surface, the inner surface of the outer locking sleeve is a conical ring surface correspondingly matched with the locking middle sleeve, and a buckling space is formed between the middle sleeve and the inner core pipe.
The buckling working surface of the inner core pipe corresponds to the intermittent convex parts on the buckling working surface of the middle sleeve in a staggered manner. The concave-convex structure with the uniform intermittent bulges is a concave-convex structure with the cross section being in the shape of a circular arc. The buckling working surface of the inner core pipe and the buckling working surface of the middle sleeve are subjected to surface roughening processing. The inner core pipe, the connecting surface and the isolating part are integrally formed in an injection molding mode.
Example 2: as shown in fig. 4, in example 1, the uneven structure of the uniform intermittent projections is an uneven structure having a short trapezoidal section.
According to the flexible composite pipe joint, in the buckling process, an outer locking sleeve and a middle sleeve are sequentially sleeved into a flexible composite pipe 5 to be connected, then the flexible composite pipe is sleeved into an inner core pipe, finally the outer locking sleeve is screwed, the outer locking sleeve drives the middle sleeve to lock the flexible composite pipe, the flexible composite pipe is locked by an even intermittent convex-concave structure between the inner core pipe and the middle sleeve, meanwhile, any influence on the flexible composite pipe cannot be caused, stress concentration is effectively avoided, and the pressure resistance and the buckling success rate are improved.
The above-described embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in any way, and other variations and modifications may be made without departing from the spirit of the utility model as set forth in the claims.
Claims (6)
1. The utility model provides a flexible composite pipe joint, including the intermediate junction pipe, characterized by, the intermediate junction pipe is including playing the separator of middle shaft shoulder effect, the separator both sides are provided with the connection face that has the external screw thread respectively, connect the face outer end fixedly connected with inner core pipe respectively, it has outer locking sleeve pipe to connect on the face respectively threaded connection, outer locking sleeve pipe and inner core intertube locking cover have well sleeve pipe, the inner core pipe is provided with the inner core pipe outward and withholds the working face, well sheathed tube is provided with well sleeve pipe withhold the working face, inner core pipe withholds the working face and well sleeve pipe withholds the working face and be the protruding concave-convex structure of even intermittent type respectively, well sleeve pipe surface is the toper anchor ring, the toper anchor ring that outer locking sleeve pipe inner surface set up for corresponding locking well sleeve pipe cooperation, well sleeve pipe and inner core intertube form withhold the space.
2. The flexible composite pipe joint as claimed in claim 1, wherein the crimping face of the inner core pipe is staggered with respect to the intermittent projections on the crimping face of the middle sleeve.
3. The flexible composite pipe joint as claimed in claim 1, wherein the uneven structure of the uniform intermittent projections is an uneven structure of the intermittent projections having a circular arc shape in cross section.
4. The flexible composite pipe joint as claimed in claim 1, wherein the uniform intermittent convexo-concave structure is a short trapezoidal intermittent convexo-concave structure in cross section.
5. The flexible composite pipe joint as claimed in claim 1, wherein the crimping face of the inner core pipe and the crimping face of the middle sleeve are surface-roughened.
6. The flexible composite pipe joint as claimed in claim 1, wherein the inner core pipe, the joint surface and the spacer are integrally injection molded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121531720.2U CN215371467U (en) | 2021-07-07 | 2021-07-07 | Flexible composite pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121531720.2U CN215371467U (en) | 2021-07-07 | 2021-07-07 | Flexible composite pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215371467U true CN215371467U (en) | 2021-12-31 |
Family
ID=79607886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121531720.2U Active CN215371467U (en) | 2021-07-07 | 2021-07-07 | Flexible composite pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215371467U (en) |
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2021
- 2021-07-07 CN CN202121531720.2U patent/CN215371467U/en active Active
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220311 Address after: 315000 No. 188-4 binwan Road, Binhai New Area, Fenghua District, Ningbo City, Zhejiang Province Patentee after: NINGBO OPR OFFSHORE ENGINEERING EQUIPMENT CO.,LTD. Address before: 310012 room 504, building 5, No. 1818-2, Wenyi West Road, Yuhang District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU ZHIHAI ARTIFICIAL INTELLIGENCE Co.,Ltd. |