CN213598802U - High-sealing convenient joint of composite pipeline - Google Patents
High-sealing convenient joint of composite pipeline Download PDFInfo
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- CN213598802U CN213598802U CN202022244424.6U CN202022244424U CN213598802U CN 213598802 U CN213598802 U CN 213598802U CN 202022244424 U CN202022244424 U CN 202022244424U CN 213598802 U CN213598802 U CN 213598802U
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Abstract
The utility model belongs to the technical field of the pipe joint, specific saying relates to a composite pipe's convenient joint of high seal, is particularly useful for the quick butt joint of the nonmetal flexible line in oil field. The composite pipe comprises a connecting core pipe, conical surface inner cores inserted into the pipe openings of the composite pipes are arranged at two ends of the connecting core pipe, buckling pipe sleeves are sleeved outside the conical surface inner cores, locking hoop petals tightly pressed on the surfaces of the composite pipes are arranged between the buckling pipe sleeves and the conical surface inner cores, the locking hoop petals are strip-shaped, and the number of the locking hoop petals is multiple and surrounds the composite pipes along the axial direction. The high-sealing convenient joint realizes firm joint structure connection, strict sealing and prolonged service life of the nonmetal flexible composite pipe, and has the characteristics of simple and compact structure and convenience in quick butt joint.
Description
Technical Field
The utility model belongs to the technical field of the pipe joint, specific saying relates to a composite pipe's convenient joint of high seal, is particularly useful for the quick butt joint of the nonmetal flexible line in oil field.
Background
The oil field natural gas pipeline adopts the steel conveyer pipe mostly, because the natural gas that the oil field was adopted mostly contains strong corrosive substance such as hydrogen sulfide, carbon dioxide and chloride ion, thereby lead to the steel conveyer pipe to be corroded rapidly, make the life of natural gas conveyer pipe shorter, therefore, the partial pipeline of carrying at the oil field natural gas is replaced gradually the flexible composite pipe of nonmetal, and along with the continuous improvement of the composite construction of nonmetal flexible pipeline, its structural strength and sealing performance have obtained apparent promotion, this makes the range of application widen more and more.
At present widely used nonmetal flexible composite pipe, the ubiquitous pipeline joint department reveals or the joint is connected insecure scheduling problem with the body, the reason for it, the joint is connected with the body only relies on frictional force suit, this kind of connected mode is influenced by the factors such as the joint has greasy dirt, impurity invasion and is great, very easily causes the frictional force inefficacy, the joint scheduling problem that drops, the life of nonmetal flexible composite pipe has seriously been reduced, bring the potential safety hazard for normal production, the cost of later maintenance has also been increased.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a compound coupling structural connection is firm, sealed rigorous and simple structure compactness, the novel high convenient joint of sealing up of being convenient for quick butt joint, and the connection of the flexible compound pipe of specially adapted current nonmetal.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a convenient joint of high seal of compound pipeline which characterized in that: the composite pipe comprises a connecting core pipe, wherein conical surface inner cores inserted into the pipe openings of the composite pipes are arranged at two ends of the connecting core pipe, a buckling pipe sleeve is sleeved outside the conical surface inner cores, locking hoop petals tightly pressed on the surface of the composite pipes are arranged between the buckling pipe sleeve and the conical surface inner cores, the locking hoop petals are strip-shaped, and the number of the locking hoop petals is multiple and surrounds the composite pipes along the axial direction.
The additional technical characteristics of the high-sealing convenient joint for the composite pipeline further comprise:
the section of the locking hoop lamella is in a wedge shape matched with the conical surface inner core, and the inner surface of the locking hoop lamella and the outer surface of the conical surface inner core are both provided with inverted teeth or thread structures for meshing the composite pipe;
one or more annular clamping grooves for placing sealing rings are formed in the end part of the conical surface inner core;
one or more arc-shaped grooves are formed in the outer surface of the lock hoop valve, and the arc-shaped grooves surround the axis of the composite pipe in the circumferential direction and are used for fixing the hoop;
-the locking hoop flap is made of metal or teflon, and the hoop is a fiber strapping or a metal ring;
a blocking ring is arranged in the middle of the connecting core pipe, and positioning pipe sections in threaded connection with the inner end of the buckling pipe sleeve are arranged on two sides of the blocking ring;
an end socket clamping ring is arranged at the outer end of the buckling pipe sleeve, and the inner diameter of the end socket clamping ring is not larger than the outer diameter of the hoop locking petals distributed annularly.
The utility model provides a pair of composite pipe's convenient joint of high seal compares with prior art, has following advantage: firstly, because the end part of the novel high-sealing convenient joint is provided with a conical surface inner core inserted into the pipe orifice of the composite pipe, the buckling pipe sleeve is sleeved outside the conical surface inner core, a plurality of locking hoop petals compressed on the surface of the composite pipe are arranged between the buckling pipe sleeve and the conical surface inner core, the locking hoop petals are strip-shaped and surround the composite pipe along the axial direction, and because the locking hoop petals can realize annular tightening when the buckling pipe sleeve buckles the whole contracted pipe at the joint, the composite pipe and the connecting core pipe can be firmly pressed and tied, so that the composite pipe and the conical surface inner core are firmly connected in a sealing manner, the high-sealing connection performance is realized, and the effective service life of the joint is prolonged; and secondly, because the middle part of the connecting core pipe is provided with the separating and blocking ring, the two sides of the separating and blocking ring are provided with the positioning pipe sections which are in threaded connection with the inner end of the buckling pipe sleeve, namely the connecting core pipe is arranged at the butt joint part of the composite pipe, the conical inner cores at the two ends of the connecting core pipe are inserted into the pipe orifices, a plurality of locking hoop petals are annularly laid outside the composite pipe, then the inner end of the buckling pipe sleeve and the positioning pipe sections are screwed and screwed, and the butt joint part is contracted, buckled and fixed.
Drawings
Fig. 1 is a schematic structural view of a high-sealing convenient joint of a composite pipeline of the present invention;
fig. 2 is a schematic view of the lock collar lobe encircling arrangement of the high seal convenience joint.
Detailed Description
The structure and the working principle of the high-sealing convenient joint for the composite pipeline provided by the invention are further described in detail with reference to the accompanying drawings.
Refer to fig. 1, for the utility model provides a composite pipe's convenient joint of high seal's structural schematic. The structure that constitutes this novel high sealed convenient joint includes connecting core pipe 1, and the both ends of connecting core pipe 1 have the conical surface inner core 11 that inserts the orificial of composite tube a, and the outside suit of conical surface inner core 11 is withheld pipe box 2, withheld between pipe box 2 and the conical surface inner core 11 and is set up the lock hoop lamella 3 that compresses tightly on composite tube a surface, and lock hoop lamella 3 is the strip, and quantity is a plurality ofly and encircles composite tube an along the axial.
The working principle is as follows: the connecting core pipe 1 is arranged at the butt joint of the composite pipe a, the conical surface inner cores 11 at the two ends of the connecting core pipe are respectively inserted into the pipe openings of the composite pipe a, then a plurality of lock hoop petals 3 are annularly laid outside the composite pipe a, the lock hoop petals 3 are strip-shaped and are wrapped outside the conical surface inner cores 11, gaps are reserved between the adjacent lock hoop petals 3, when the buckling pipe sleeve 2 is buckled on the lock hoop petals 3, the lock hoop petals 3 can be tightened along the annular direction, the composite pipe is firmly pressed and tied on the conical surface inner cores 11, the joint is of a composite structure, connection is firm, sealing is precise, and the service cycle is longer.
In the structure of the novel high-sealing convenient joint,
in order to further enhance the sealing performance of the joint, the section of the lock hoop lamella 3 is in a wedge shape matched with the conical surface inner core 11, that is, the pipe orifice of the composite pipe is inserted and fixed in the annular cavity gap between the lock hoop lamella 3 and the conical surface inner core 11, the contact surface of the lock hoop lamella 3 and the conical surface inner core 11 is horizontally inclined, so that the insertion and fixation are convenient, and the locking force during buckling can be increased;
optionally, one or more annular clamping grooves 13 for placing the sealing ring 12 are formed in the end portion of the conical inner core 11 and serve as a sealing reinforcing structure, the sealing ring 12 can effectively prevent oil gas, impurities and the like in the pipeline from penetrating into the joint, the protection capability of the locking hoop valve 3 and the connecting core pipe 1 is stronger, and the effective service life of the joint structure is prolonged;
as shown in fig. 2, further, one or more arc grooves 31 are formed in the outer surface of the locking hoop flap 3, the arc grooves 31 are circumferentially arranged around the axis of the composite pipe a to fix the hoop 32, the hoop 32 can position the strip-shaped locking hoop flap 3 on the surface of the composite pipe a in advance, so that when the buckling pipe sleeve 2 is buckled and compressed in a contracting pipe, the position of the locking hoop flap 3 is prevented from being changed to affect the sealing and positioning effect, and meanwhile, the hoop 32 is sleeved on the locking hoop flap 3, so that the bearing pressure at the joint can be effectively enhanced, and the pressure leakage at the pipe orifice can be prevented;
preferably, the locking hoop flap 3 is made of metal or polytetrafluoroethylene, the hoop 32 is a fiber strapping or a metal ring, the metal is selected from copper, stainless steel and other materials with high mechanical strength and toughness, and the polytetrafluoroethylene has the characteristics of light weight, wear resistance, corrosion resistance and the like;
optionally, a blocking ring 14 is arranged in the middle of the connecting core pipe 1, and positioning pipe sections 15 in threaded connection with the inner end of the buckling pipe sleeve 2 are arranged on two sides of the blocking ring 14, so that the buckling pipe sleeve 2 is convenient to mount and position, the binding force with the connecting core pipe 1 is enhanced, the buckling of the contracting pipe and the threaded connection are combined, the joint structure is tighter, and the connection integration degree is higher;
furthermore, the outer end of the buckling pipe sleeve 2 is provided with an end socket clamping ring 21, the inner diameter of the end socket clamping ring 21 is not larger than the outer diameter of the hoop locking petals 3 distributed annularly, the end socket clamping ring 21 acts similar to an end socket end cover, the conveying medium of the composite pipe is prevented from entering the joint, meanwhile, the hoop locking petals 3 can be clamped and fixed, and the axial drawing resistance at the joint is improved.
Claims (7)
1. The utility model provides a convenient joint of high seal of compound pipeline which characterized in that: the composite pipe comprises a connecting core pipe, wherein conical surface inner cores inserted into the pipe openings of the composite pipes are arranged at two ends of the connecting core pipe, a buckling pipe sleeve is sleeved outside the conical surface inner cores, locking hoop petals tightly pressed on the surface of the composite pipes are arranged between the buckling pipe sleeve and the conical surface inner cores, the locking hoop petals are strip-shaped, and the number of the locking hoop petals is multiple and surrounds the composite pipes along the axial direction.
2. The high-sealing convenient joint of the composite pipeline as claimed in claim 1, wherein: the section of the lock hoop lamella is in a wedge shape matched with the conical surface inner core, and the inner surface of the lock hoop lamella and the outer surface of the conical surface inner core are both provided with inverted teeth or thread structures meshed with the composite pipe.
3. The high-sealing convenient joint of the composite pipeline as claimed in claim 2, wherein: the tip of conical surface inner core is equipped with one or multichannel ring groove that is used for placing the sealing washer.
4. The high-sealing convenient joint of the composite pipeline as claimed in claim 1 or 2, wherein: the outer surface of the lock hoop valve is provided with one or more arc grooves, and the arc grooves are annularly arranged around the axis of the composite pipe and used for fixing the hoop.
5. The high-sealing convenient joint of the composite pipeline as claimed in claim 4, wherein: the lock hoop valve is made of metal or polytetrafluoroethylene, and the hoop is a fiber strapping tape or a metal circular ring.
6. The high-sealing convenient joint of the composite pipeline as claimed in claim 1, wherein: and the middle part of the connecting core pipe is provided with a blocking ring, and two sides of the blocking ring are provided with positioning pipe sections in threaded connection with the inner end of the buckling pipe sleeve.
7. The high-sealing convenient joint of the composite pipeline as claimed in claim 1 or 6, wherein: and the outer end of the buckling pipe sleeve is provided with an end socket clamping ring, and the inner diameter of the end socket clamping ring is not more than the outer diameter of the hoop locking petals distributed annularly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022244424.6U CN213598802U (en) | 2020-10-11 | 2020-10-11 | High-sealing convenient joint of composite pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022244424.6U CN213598802U (en) | 2020-10-11 | 2020-10-11 | High-sealing convenient joint of composite pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213598802U true CN213598802U (en) | 2021-07-02 |
Family
ID=76590633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022244424.6U Active CN213598802U (en) | 2020-10-11 | 2020-10-11 | High-sealing convenient joint of composite pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213598802U (en) |
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2020
- 2020-10-11 CN CN202022244424.6U patent/CN213598802U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A High Seal Convenient Joint for Composite Pipe Effective date of registration: 20230303 Granted publication date: 20210702 Pledgee: Cangzhou Bank Co.,Ltd. Hengshui Jingxian Sub branch Pledgor: HEBEI HAIEN RUBBER PRODUCTS Co.,Ltd. Registration number: Y2023980033918 |