CN210424110U - Tee joint composite seal pipeline connecting piece - Google Patents
Tee joint composite seal pipeline connecting piece Download PDFInfo
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- CN210424110U CN210424110U CN201921397956.4U CN201921397956U CN210424110U CN 210424110 U CN210424110 U CN 210424110U CN 201921397956 U CN201921397956 U CN 201921397956U CN 210424110 U CN210424110 U CN 210424110U
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- tee bend
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- ball joint
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- sealing
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Abstract
The utility model discloses a three-way composite sealing pipeline connecting piece, which comprises a three-way pipe connecting nozzle, an outer sleeve nut, a spherical joint, a sealing ring, a sealing groove and a cone angle; the tee bend mouthpiece's three mouthpiece all seted up threaded connection mouth, and threaded connection mouth's the interior side section be the straightway, and the outside section is the cone angle, tee bend mouthpiece is close to and sets up the seal groove on the straightway of cone angle one end, and installs the sealing washer in the seal groove, ball joint inserts tee bend mouthpiece, tee bend mouthpiece's conical surface angle and ball joint's spherical surface contact, outer sleeve nut cup joints on ball joint, and passes through the screw thread with tee bend mouthpiece one end and realize zonulae occludens, and this tee bend composite seal pipeline connecting piece through ball joint seal and axial seal structure form, has compensatied under the not hard up condition of outer sleeve nut, and the not enough of ball joint seal failure still can realize sealedly through axial seal, and this structure can have good suitability at low temperature simultaneously.
Description
Technical Field
The utility model relates to a pipeline jointing equipment technical field specifically is a tee bend composite seal pipeline connecting piece.
Background
Pipeline connections are one of the important elements of fluid systems and are widely used in liquid launch vehicles for propellant delivery systems and for tank pressurization systems and other gas supply systems. In a rocket pipeline system, a three-way pipeline connecting piece is a common connecting joint, and the pipeline is required to be ensured not to be leaked in the working process. Once a leak occurs, it may cause system failure and even failure of the launch task. Therefore, the design of the three-way pipeline connecting piece is very critical, and the high attention of people is drawn in the engineering.
The traditional three-way pipeline connecting piece consists of 1 three-way pipe connecting nozzle, 3 outer sleeve nuts and 3 spherical joints. Through the contact of the three-way filler neck with an angle and the 3 spherical joints, the sealing is realized under the action of the fastening force of the 3 outer sleeve nuts. The traditional ball joint pipeline connecting piece of the three-way pipe connecting nozzle is based on sealing of a ball joint and belongs to a single-channel sealing structure. The pipeline system has the disadvantages that the spherical joint and the welding nozzle are made of metal materials, belong to hard sealing and are easy to leak, and due to the fact that single-channel sealing is adopted and no redundancy design exists, leakage is easy to occur in the using process, and certain risks are brought to the reliability of the pipeline system.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a tee bend composite seal pipeline connecting piece to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a tee joint composite sealing pipeline connecting piece comprises a tee joint nozzle, an outer sleeve nut, a spherical joint, a sealing ring, a sealing groove and a cone angle; threaded connection mouth has all been seted up to three mouthpiece of tee bend mouthpiece, and threaded connection mouth's the interior side section be the straightway, and the outside section is the cone angle, tee bend mouthpiece sets up the seal groove on being close to the straightway of cone angle one end, and installs the sealing washer in the seal groove, ball joint inserts tee bend mouthpiece, tee bend mouthpiece's conical surface angle and ball joint's spherical surface contact, outer sleeve nut cup joints on ball joint, and passes through the screw thread with tee bend mouthpiece one end and realize zonulae occludens.
Preferably, the spherical joint has a straight line segment, and the spherical part is located at the middle position of the joint.
Preferably, the angle of the taper angle is 20 ° to 70 °.
Preferably, the three nozzles of the three-way connecting nozzle can have different pipe diameters.
Preferably, the three-way filler neck can be a four-way connector neck, and each filler neck has an angle of 90 degrees.
Compared with the prior art, the beneficial effects of the utility model are that: this compound sealing pipeline connecting piece of tee bend simple structure through ball joint seal and axial seal structure form, has highlighted ball joint's sealed characteristics on the one hand, and on the other hand has remedied through axial seal structure's self sealss characteristics under the not hard up condition of overcoat nut, and the not enough of ball joint seal inefficacy has still can be realized sealedly through axial seal, and this structure can have good suitability at low temperature simultaneously.
Drawings
Fig. 1 is a schematic sectional structure of the present invention;
fig. 2 is a schematic sectional view of the three-way filler neck of the present invention.
In the figure: 1-three-way pipe connecting mouth; 2-a nut is sleeved; 3-a ball joint; 4-sealing ring; 5-sealing groove; 6-cone angle.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1 and fig. 2, the present invention provides a technical solution: a tee joint composite sealing pipeline connecting piece comprises a tee joint pipe connecting nozzle 1, an outer sleeve nut 2, a spherical joint 3, a sealing ring 4, a sealing groove 5 and a cone angle 6; threaded connection mouth has all been seted up to three mouthpiece of tee bend mouthpiece 1, and threaded connection mouth's the interior side section is the straightway, the outside section is cone angle 6, tee bend mouthpiece 1 sets up seal groove 5 on being close to the straightway of cone angle 6 one end, and install sealing washer 4 in the seal groove 5, ball joint 3 inserts in tee bend mouthpiece 1, the cone angle 6 face angle of tee bend mouthpiece 1 and ball joint 3's spherical surface contact, outer sleeve nut 2 cup joints on ball joint 3, and realize zonulae occludens through the screw thread with tee bend mouthpiece 1 one end, ball joint 3 has certain straightway, and the ball-shaped part is located the middle part position that connects, cone angle 6's angle is 20 ~ 70, the pipe diameter size of tee bend mouthpiece 1's three mouthpiece can be different, tee bend mouthpiece 1 can be the cross-connection mouth, every mouthpiece angle is 90 degrees.
The working principle is as follows: an axial sealing structure is added on the basis of sealing of a three-way pipe connecting nozzle 1 and a spherical joint 3, the composite sealing of the spherical joint 3 and the axial sealing structure is realized, the structure realizes double sealing of a pipeline structure through a metal hard seal and a soft seal of a sealing ring 4, the redundant design of a three-way pipeline joint can be realized, and even if an outer sleeve nut 2 is loosened and the spherical joint 3 fails in sealing under the extreme condition, the three-way composite sealing pipeline connecting piece can be ensured not to be leaked through the self-sealing of the axial sealing structure, so that the reliability of structural connection is ensured; meanwhile, the carrier rocket pipeline system has good applicability at low temperature, and the reliability and safety of the carrier rocket pipeline system are effectively improved; the three-way pipe connecting nozzle 1 has 3 different pipe diameters, so that the change of the three circulation pipe diameters can be realized; the structure of the three-way filler neck 1 can be expanded into a four-way filler neck structure, and the angle of each filler neck is 90 degrees.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A three-way composite sealing pipeline connecting piece comprises a three-way pipe connecting nozzle (1), an outer sleeve nut (2), a spherical joint (3), a sealing ring (4), a sealing groove (5) and a cone angle (6); the method is characterized in that: the three mouthpiece of tee bend filler neck (1) has all seted up the threaded connection mouth, and the interior side section of threaded connection mouth is the straightway, and the outside section is cone angle (6), tee bend filler neck (1) sets up seal groove (5) on being close to the straightway of cone angle (6) one end, and installs sealing washer (4) in seal groove (5), ball joint (3) insert tee bend filler neck (1) in, cone angle (6) face angle of tee bend filler neck (1) and the spherical face contact of ball joint (3), outer sleeve nut (2) cup joint on ball joint (3), and pass through the screw thread with tee bend filler neck (1) one end and realize zonulae occludens.
2. The three-way composite sealed pipeline connector according to claim 1, wherein: the spherical joint (3) is provided with a certain straight line segment, and the spherical part is positioned in the middle of the joint.
3. The three-way composite sealed pipeline connector according to claim 1, wherein: the angle of the cone angle (6) is 20-70 degrees.
4. The three-way composite sealed pipeline connector according to claim 1, wherein: the pipe diameters of three pipe mouths of the three-way pipe connecting mouth (1) can be different.
5. The three-way composite sealed pipeline connector according to claim 1, wherein: the three-way pipe connecting nozzle (1) can be a four-way connecting nozzle, and the angle of each pipe connecting nozzle is 90 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921397956.4U CN210424110U (en) | 2019-08-27 | 2019-08-27 | Tee joint composite seal pipeline connecting piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921397956.4U CN210424110U (en) | 2019-08-27 | 2019-08-27 | Tee joint composite seal pipeline connecting piece |
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| Publication Number | Publication Date |
|---|---|
| CN210424110U true CN210424110U (en) | 2020-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921397956.4U Active CN210424110U (en) | 2019-08-27 | 2019-08-27 | Tee joint composite seal pipeline connecting piece |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236881A (en) * | 2021-05-24 | 2021-08-10 | 台州丰华铜业有限公司 | Eccentric joint |
| CN114017171A (en) * | 2021-10-26 | 2022-02-08 | 东风商用车有限公司 | Exhaust pipe sealing structure |
-
2019
- 2019-08-27 CN CN201921397956.4U patent/CN210424110U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113236881A (en) * | 2021-05-24 | 2021-08-10 | 台州丰华铜业有限公司 | Eccentric joint |
| CN114017171A (en) * | 2021-10-26 | 2022-02-08 | 东风商用车有限公司 | Exhaust pipe sealing structure |
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