CN214535001U - Quick-release pipe joint - Google Patents
Quick-release pipe joint Download PDFInfo
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- CN214535001U CN214535001U CN202120581522.0U CN202120581522U CN214535001U CN 214535001 U CN214535001 U CN 214535001U CN 202120581522 U CN202120581522 U CN 202120581522U CN 214535001 U CN214535001 U CN 214535001U
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- step joint
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- flange
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Abstract
The utility model provides a quick detach coupling belongs to sealing device technical field, include: the nut is sleeved on the boss step joint, the boss step joint is provided with an annular flange, the concave step joint is in butt joint with the boss step joint oppositely, and the concave step joint is provided with an external thread; the boss step joint is also provided with an eccentric flange, the eccentric flange and the annular flange are arranged at intervals, the inner diameter of the through hole of the outer sleeve nut is D, the shaft radius of the boss step joint is D1, and the distance from the shaft center of the boss step joint to the outermost end of the eccentric flange is D2, wherein D1+ D2 is less than D, and D2 is more than D/2; the utility model discloses a quick detach coupling, when dismantling, the nut that unscrews through outside carries out the butt to the eccentric flange that the boss rank connects to make protruding step joint and the separation of concave step joint, improve quick detach coupling's the efficiency of demolising.
Description
Technical Field
The utility model relates to a sealing device technical field, concretely relates to quick detach coupling.
Background
Along with the development of aerospace industry in China, the requirement for repeated use of a liquid rocket engine is provided, great challenge is provided for the sealing of a propellant pipeline system and a gas pipeline system, the working reliability of the engine in the environment with high temperature, high pressure and large vibration needs to be ensured, and the sealing element is allowed to be disassembled, assembled and replaced for many times.
In order to ensure the sealing effect and resist a large vibration environment, a large mounting torque is usually applied to the pipe joint seal, and an aluminum gasket or a copper gasket generates plastic flow under the action of the mounting torque, fills a gap of the step joint and is deformed and seized. Secondly, the temperature environment of the liquid rocket engine is complex, and the pipe joint can also generate deformation and seizure under the alternating action of high temperature and low temperature. In addition, the liquid rocket engine is compact in layout and small in space, so that the liquid rocket engine is not convenient to arrange or install and disassemble tools, and has the problem of inconvenient operation in the debugging and maintaining processes, so that the pipe joint is difficult to disassemble, the working efficiency of operators is reduced, and the repeated use requirement cannot be met.
SUMMERY OF THE UTILITY MODEL
Therefore, the to-be-solved technical problem of the utility model lies in overcoming the quick detach coupling among the prior art defect of being not convenient for dismantle to a quick detach coupling is provided.
In order to solve the technical problem, the utility model provides a quick detach coupling, include: the nut comprises a concave step joint, a convex step joint and a jacket nut which are matched with each other, wherein the jacket nut is sleeved on the convex step joint, an annular flange used for blocking the jacket nut is arranged on the convex step joint, the concave step joint is oppositely butted with the convex step joint, and an external thread used for being matched with the jacket nut is arranged on the concave step joint;
still have eccentric flange on the boss rank joint, eccentric flange with the annular flange interval sets up, what the overcoat nut was used for the cover to establish the boss rank joint passes the internal diameter of hole and is D, the axle radius that the protruding step connects is D1, the axle center distance that the protruding step connects the distance of eccentric flange outermost end is D2, wherein, D1+ D2 < D, D2 > D/2.
Optionally, the eccentric flange has an arcuate profile that tapers in a direction toward the apex.
Optionally, the side wall of the outer sleeve nut is provided with at least one leak detection hole.
Optionally, the female stepped joint is provided with a polygonal flange spaced from the outer sleeve nut.
Optionally, a seal ring is abutted between the female step joint and the male step joint.
Optionally, a first convex step for clamping the sealing ring is arranged on the convex step joint, and a first concave step opposite to the first convex step is arranged on the concave step joint.
Optionally, the female step joint has a second female step thereon for receiving the annular flange of the male step joint.
The utility model discloses technical scheme has following advantage:
the utility model provides a quick detach coupling, when dismantling, the nut that unscrews outward carries out the butt to the eccentric flange that the boss rank connects to make protruding step joint and concave step joint separation, improve quick detach coupling's the efficiency of demolising.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is an exploded view of a quick release coupler according to an embodiment of the present invention.
Fig. 2 is a front cross-sectional view of the male stepped joint of fig. 1.
Fig. 3 is a cross-sectional view taken along line a-a of fig. 2.
Fig. 4 is a schematic view of the assembly of the lug step joint with the outer nut.
FIG. 5 is a front cross-sectional view of the quick release coupler of FIG. 1 shown assembled.
Description of reference numerals:
1. a concave step joint; 2. a boss step joint; 3. a nut is sleeved; 4. a seal ring; 5. an annular flange; 6. an eccentric flange; 7. detecting a leak hole; 8. a polygonal flange; 9. a first convex step; 10. a first concave step; 11. A second concave step.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.
The present embodiment provides a quick release coupler, as shown in fig. 1, including: concave step connects 1, boss rank and connects 2 and cap nut 3, concave step connects 1 and boss rank and connects 2 butt joint cooperations relatively, has connect the sealing washer 4 between concave step connects 1 and boss rank and connects 2 to sealed between concave step connects 1 and the boss rank connects 2.
Overcoat nut 3 is used for the cover to establish on the boss rank connects 2 to have on the boss rank connects and is used for blockking overcoat nut 3's annular flange 5, concave step connect 1 on have be used for with 3 complex external screw threads of overcoat nut fasten through the butt joint of overcoat nut 3 between concave step connects 1 and the boss rank connects 2 to carry out quick firm connection.
As shown in fig. 1 and 2, the male stepped joint 2 further has an eccentric flange 6, and the eccentric flange 6 is spaced apart from the annular flange 5. As shown in fig. 3, the profile of the eccentric flange 6 in the present embodiment is an arc shape gradually decreasing toward the top end, and in addition, as an alternative embodiment, the eccentric flange 6 may also be another similar structure such as an eccentric ellipse, an eccentric circle, and the like.
As shown in fig. 4, the inner diameter of the through hole of the outer nut 3 for sleeving the boss step joint 2 is D, the axial radius of the boss step joint 2 is D1, the distance from the axial center of the boss step joint 2 to the outermost end of the eccentric flange 6 is D2, and D1+ D2 < D; that is, when the male stepped joint 2 and the outer nut 3 are not concentric, the eccentric flange 6 of the male stepped joint 2 can pass through the outer nut 3. And, the D1 > D/2. Even if the boss step joint 2 and the outer nut 3 are concentric, the eccentric flange 6 of the boss step joint 2 cannot pass through the outer nut 3, and the boss step joint 2 and the female step joint 1 can be urged to separate by abutting the outer nut 3 against the eccentric flange 6 when the outer nut 3 is disassembled by screwing. In addition, it should be noted that the diameter of the annular flange 5 of the stepped boss joint 2 should be larger than the inner diameter of the through hole of the outer nut 3, so that the stepped boss joint 2 can be tightly coupled to the stepped recess joint 1 by abutment of the outer nut 3 with the annular flange 5 when the outer nut 3 is assembled by screwing.
As shown in fig. 1 and 4, two symmetrical leak detection holes 7 are formed in the side wall of the outer sleeve nut 3, and after assembly, the leak detection holes 7 are located between the concave stepped joint 1 and the convex stepped joint 2. The leakage detection hole 7 is used for detecting leakage and collecting leakage gas when the sealing performance of the quick-release pipe joint is detected. In addition, the two leak detection holes 7 are symmetrically arranged, so that the leak detection holes 7 can be conveniently connected, and the problem that the leak detection holes 7 are not easy to find due to the fact that the rotating position of the outer sleeve nut 3 is not fixed is solved.
As shown in fig. 1, the female stepped joint 1 is provided with a polygonal flange 8 spaced apart from the outer nut 3, and the polygonal flange 8 is used to fix the female stepped joint 1 when the outer nut 3 is screwed.
As shown in fig. 5, the convex step joint 2 is provided with a first convex step 9 for clamping the sealing ring 4, the concave step joint 1 is provided with a first concave step 10 opposite to the first convex step 9, and the sealing ring 4 is arranged between the first convex step 9 and the first concave step 10, so that the convex step structure and the concave step joint 1 are sealed. In addition, the concave step joint 1 is also provided with a second concave step 11 for accommodating the annular flange 5 of the convex step joint 2, and the arrangement of the second concave step 11 can avoid over-tight compression joint of the sealing ring 4 and further form sealing for the convex step structure and the concave step joint 1.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (7)
1. A quick disconnect coupling comprising: the nut comprises a concave step joint (1), a convex step joint (2) and an outer sleeve nut (3) which are matched with each other, wherein the outer sleeve nut (3) is sleeved on the convex step joint (2), an annular flange (5) used for blocking the outer sleeve nut (3) is arranged on the convex step joint (2), the concave step joint (1) is oppositely butted with the convex step joint (2), and an external thread used for being matched with the outer sleeve nut (3) is arranged on the concave step joint (1);
its characterized in that, protruding step connects still has eccentric flange (6) on (2), eccentric flange (6) with annular flange (5) interval sets up, what be used for the cover of outer sleeve nut (3) establishes boss step connects (2) the internal diameter that passes the hole is D, the axle radius that boss step connects (2) is D1, the axle center distance that protruding step connects (2) the distance of eccentric flange (6) outermost end is D2, wherein, D1+ D2 < D, D2 > D/2.
2. The quick release coupler according to claim 1, wherein the eccentric flange (6) has an arcuate profile that tapers in a direction toward the top end.
3. The quick release coupler according to claim 1, wherein the side wall of the outer sleeve nut (3) is provided with at least one leak hole (7).
4. The quick release coupler according to claim 1, wherein the female step coupler (1) is provided with a polygonal flange (8) spaced from the outer sleeve nut (3).
5. The quick release coupler according to claim 1, wherein a sealing ring (4) is butted between the female step coupler (1) and the male step coupler (2).
6. The quick release pipe joint according to claim 5, wherein the male step joint (2) is provided with a first male step (9) for clamping the seal ring (4), and the female step joint (1) is provided with a first female step (10) opposite to the first male step (9).
7. Quick release pipe joint according to any of claims 1 to 6, wherein the female step joint (1) has a second female step (11) thereon for receiving the annular flange (5) of the boss step joint (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120581522.0U CN214535001U (en) | 2021-03-22 | 2021-03-22 | Quick-release pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120581522.0U CN214535001U (en) | 2021-03-22 | 2021-03-22 | Quick-release pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214535001U true CN214535001U (en) | 2021-10-29 |
Family
ID=78264695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120581522.0U Active CN214535001U (en) | 2021-03-22 | 2021-03-22 | Quick-release pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214535001U (en) |
-
2021
- 2021-03-22 CN CN202120581522.0U patent/CN214535001U/en active Active
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