High-reliability reusable sealing structure
By designing a multi-bending sealing structure for the male, female, and connecting sleeves, and utilizing the distribution of soft sealing rings on different bending surfaces, the problems of easy damage to hard seals and difficulty in detecting failure of soft seals are solved, thereby improving the sealing effect and enabling the reusability of the sealing structure.
Patent Information
- Application Number
- CN202423285024.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing hard-seal structures are susceptible to poor sealing due to the influence of the medium and trapped particles, while soft-seal structures are difficult to detect failures, resulting in weakened or failed sealing effects and making them unusable for repeated use.
Design a sealing structure including a male head, a female head, a connecting sleeve, and multiple inner and outer sealing rings. Through multiple bending connections, the soft sealing rings are distributed on different bending surfaces to ensure the sealing effect. The connecting sleeve enables detachable connection, facilitating multiple insertions and removals to replace the sealing rings.
It achieves a sealing effect, avoids the poor sealing effect of existing technologies, adapts to the sealing effect, adapts to the insertion and removal of the sealing structure and the sealing effect of multiple uses, and adapts to the reusability of the sealing structure.
Smart Images
Figure CN223651708U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of sealing structures, and more particularly to a highly reliable and reusable sealing structure. Background Technology
[0002] Sealing can generally be divided into hard seals and soft seals. A hard seal refers to a sealing method achieved through the tight contact of two metal surfaces. Both sides of the sealing pair are made of metal or other hard materials, such as stainless steel or copper, which work together to form a seal. This tight contact is similar to an overlap, thus preventing media leakage. A soft seal mainly utilizes the elastic deformation of soft materials (such as rubber or plastic) to achieve a seal. One side of the sealing pair is metal, and the other side is a soft material.
[0003] However, hard seals work by applying force to cause plastic deformation on both sides of the sealing pair. But if this structure is broken and then reconnected, the two sides of the sealing pair are made of metal or other hard materials. Therefore, the two sides of the sealing pair are easily deformed by the medium and trapped particles, which can easily lead to bite marks on the sealing surface, resulting in poor sealing. The sealing effect will be weakened, and the sealing structure needs to be replaced after multiple uses.
[0004] For soft-seal structures, during the insertion of one sealing member into another, the soft-seal structure (e.g., O-ring) between the two sealing members may fail (e.g., deform or be damaged). However, even if the soft-seal structure fails, it cannot be known whether it has failed because it is inserted into the other sealing member along with the first one. To know whether the soft-seal structure has failed, the sealing member must be pulled out to check the soft-seal structure, and then the sealing member is reinserted. However, the state of the soft-seal structure cannot be known after reinsertion, so the sealing effect of the soft-seal structure cannot be well guaranteed.
[0005] Therefore, how to improve the sealing effect and make the sealing structure adaptable to multiple insertions and removals so that the sealing structure can be reused is a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content
[0006] This application provides a highly reliable and reusable sealing structure to improve the sealing effect and make the sealing structure adaptable to multiple insertions and removals, thereby allowing the sealing structure to be reused.
[0007] To solve the above-mentioned technical problems, this application provides the following technical solution:
[0008] A highly reliable and reusable sealing structure includes: a male head, a female head, a connecting sleeve, multiple inner sealing rings, and multiple outer sealing rings; wherein, a mating cavity is formed within the wall of the mating section of the female head, and the opening of the mating cavity is located on the mating end face of the female head, and the mating section of the male head is inserted into the mating cavity through the opening of the mating cavity; all inner sealing rings and all outer sealing rings are located in the mating cavity, and all inner sealing rings are located between the inner wall surface of the mating section of the male head and the inner wall surface of the mating cavity of the female head, with a certain distance between adjacent inner sealing rings; all outer sealing rings are located between the outer wall surface of the mating section of the male head and the outer wall surface of the mating cavity of the female head, with a certain distance between adjacent outer sealing rings; the connecting sleeve has an assembly channel penetrating both ends, the exposed portion of the mating section of the male head and the mating section of the female head are both located within the assembly channel of the connecting sleeve, and the positioning end of the connecting sleeve engages with the rear end face of the mating section of the male head; the connecting sleeve and the connecting section of the female head are detachably connected.
[0009] In the highly reliable and reusable sealing structure described above, preferably, the inner diameter of the mating section of the male connector is larger than the inner diameter of the other pipe sections of the male connector; the outer diameter of the outer wall of the mating cavity of the female connector is larger than the outer diameter of the other pipe sections of the female connector; and the inner diameter of the inner wall of the mating cavity of the female connector is equal to the inner diameter of the other pipe sections of the female connector and the inner diameter of the other pipe sections of the male connector.
[0010] In the highly reliable and reusable sealing structure described above, preferably, the outer wall surface of the mating section of the male head has a plurality of inwardly recessed first mounting grooves, and there is a certain distance between two adjacent first mounting grooves, with a portion of an outer sealing ring located within a first mounting groove.
[0011] In the highly reliable and reusable sealing structure described above, preferably, the inner wall surface of the mating cavity of the female head has a plurality of inwardly recessed second mounting grooves, and there is a certain distance between two adjacent second mounting grooves, with a portion of an inner sealing ring located in one second mounting groove.
[0012] In the highly reliable and reusable sealing structure described above, preferably, the connection between the outer wall surface of the male connector's mating section and the male connector's mating end face forms a chamfer, and the connection between the end face of the inner wall of the female connector's mating cavity and the inner wall surface of the female connector's mating cavity forms a chamfer.
[0013] In the highly reliable and reusable sealing structure described above, preferably, the inner surface of the connecting sleeve has an internal thread, the outer wall surface of the mating cavity of the female head has an external thread, and the internal thread of the connecting sleeve is threadedly connected to the external thread of the female head to achieve a detachable connection between the connecting sleeve and the female head.
[0014] The highly reliable and reusable sealing structure described above preferably has a hexagonal prism shape for easy screwing the connecting sleeve onto the female end.
[0015] In the highly reliable and reusable sealing structure described above, preferably, the outer wall surface of the mating section of the male connector has an outwardly extending first positioning protrusion, and the first positioning protrusion is farther away from the mating end face of the male connector than all the first mounting grooves; the first positioning protrusion abuts against the end face of the outer wall of the mating cavity of the female connector.
[0016] In the highly reliable and reusable sealing structure described above, preferably, the outer surface of the first positioning protrusion is flush with the outer wall of the mating cavity of the female head, or the outer surface of the first positioning protrusion is lower than the outer wall of the mating cavity of the female head.
[0017] In the highly reliable and reusable sealing structure described above, preferably, the positioning end of the connecting sleeve extends inward with a second positioning protrusion, the front end of the second positioning protrusion contacting and pressing against the rear end of the first positioning protrusion to lock and limit the male head.
[0018] Compared to the aforementioned background technology, the male and female connectors of the sealing structure in this application undergo multiple bends at their joints, thereby improving the sealing effect. Furthermore, since the sealing rings are located on different bend surfaces, compared to sealing rings on the same surface, the possibility of all sealing rings failing after insertion is reduced, resulting in a better sealing effect. This makes the sealing structure suitable for high-pressure gas and liquid pipeline connections. Each bend surface contains multiple sealing rings, preventing uncertainty about whether some sealing rings are damaged or ineffective after insertion, further ensuring the sealing effect. Moreover, since the sealing structure in this application uses a soft sealing structure like sealing rings, unlike hard sealing structures which require cutting, welding, and acid washing for replacement, necessitating the removal of the entire pipeline, the sealing structure in this application can withstand multiple insertions and removals. Only the sealing rings need to be replaced after insertion and removal, allowing for reuse of the sealing structure. Furthermore, insertion and removal are convenient, eliminating the need to remove the entire pipeline. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0020] Figure 1 This is a perspective view of the highly reliable and reusable sealing structure of this application;
[0021] Figure 2 This is a cross-sectional view of the highly reliable and reusable sealing structure of this application;
[0022] Figure 3 This is a perspective view of the male connector of the highly reliable and repeatable sealing structure of this application;
[0023] Figure 4 This is a cross-sectional view of the male end of the highly reliable and repeatable sealing structure of this application;
[0024] Figure 5 This is a perspective view of the female head of the highly reliable and repeatable sealing structure of this application;
[0025] Figure 6 This is a cross-sectional view of the female head of the highly reliable and repeatable sealing structure of this application. Detailed Implementation
[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0027] like Figures 1 to 6 As shown, this application provides a highly reliable and reusable sealing structure, including: a male head 110, a female head 120, a connecting sleeve 130, a plurality of inner sealing rings 140 and a plurality of outer sealing rings 150.
[0028] The male connector 110 has a flow channel that runs through both ends, and the female connector 120 has a flow channel that runs through both ends. After the docking section of the male connector 110 and the docking section of the female connector 120 are connected, the medium flows through the flow channels of the male connector 110 and the female connector 120.
[0029] The female connector 120 has a mating cavity formed within the wall of its mating section, and the opening of the mating cavity is located on the mating end face of the female connector 120. The male connector 110's mating section is inserted into the mating cavity of the female connector 120 through the opening of the mating cavity. All inner sealing rings 140 and all outer sealing rings 150 are located within the mating cavity of the female connector 120. All inner sealing rings 140 are located between the inner wall surface of the male connector 110's mating section and the inner wall surface of the female connector 120's mating cavity, with a certain distance between adjacent inner sealing rings 140. All outer sealing rings 150 are located between the outer wall surface of the male connector 110's mating section and the outer wall surface of the female connector 120's mating cavity, with a certain distance between adjacent outer sealing rings 150. Optionally, both the inner sealing rings 140 and the outer sealing rings 150 are O-rings.
[0030] Optionally, the wall of the mating section of the male connector 110 is flared outwards, meaning the inner diameter of the mating section of the male connector 110 is larger than the inner diameter of the other sections of the male connector 110. This ensures that after the mating section of the male connector 110 is inserted into the mating cavity of the female connector 120, the inner diameter of the other sections of the male connector 110 is equal to the inner diameter of the mating section of the female connector 120, thus ensuring a smooth and flat inner wall of the flow channel. Alternatively, the outer wall surface of the mating section of the male connector 110 has multiple inwardly recessed first mounting grooves, with a certain distance between adjacent first mounting grooves. A portion of an outer sealing ring 150 is located within one of the first mounting grooves, thus providing a certain degree of restraint for the outer sealing ring 150 and preventing displacement or deformation of the outer sealing ring 150 when the mating section of the male connector 110 is inserted into the mating cavity of the female connector 120. Still alternatively, the distance between adjacent first mounting grooves is equal, ensuring that all outer sealing rings 150 are evenly distributed. Optionally, the outer wall surface of the mating section of the male connector 110 has two first mounting grooves. Also optional, the outer wall surface of the mating section of the male connector 110 has an outwardly extending first positioning protrusion, which is farther from the mating end face of the male connector 110 than all the first mounting grooves. After the mating section of the male connector 110 is inserted into the mating cavity of the female connector 120, it abuts against the end face of the outer wall of the mating cavity of the female connector 120, thereby limiting the position of the female connector 120 and further providing a sealing effect.
[0031] Optionally, the outer wall of the mating cavity of the female connector 120 expands outward, meaning the outer diameter of the outer wall of the mating cavity of the female connector 120 is larger than the outer diameter of the other pipe sections of the female connector 120. Meanwhile, the inner wall of the mating cavity of the female connector 120 remains flush with the other pipe sections of the female connector 120, meaning the inner diameter of the inner wall of the mating cavity of the female connector 120 is equal to the inner diameter of the other pipe sections of the female connector. Thus, after the mating section of the male connector 110 is inserted into the mating cavity of the female connector 120, it can be ensured that the inner diameter of the mating section of the female connector 120 and other pipe sections are equal to the inner diameter of the other pipe sections of the male connector 110, thereby ensuring that the inner wall of the flow channel is flat and smooth. Optionally, the inner wall surface of the mating cavity of the female head 120 has multiple inwardly recessed second mounting grooves, with a certain distance between adjacent second mounting grooves. A portion of an inner sealing ring 140 is located within one second mounting groove, thus providing a certain degree of restraint for the inner sealing ring 140 and preventing displacement or deformation of the inner sealing ring 140 when the mating section of the male head 110 is inserted into the mating cavity of the female head 120. Alternatively, the distance between adjacent second mounting grooves is equal, ensuring that all inner sealing rings 140 are evenly distributed. Still optional, the inner wall surface of the mating cavity of the female head 120 has two second mounting grooves.
[0032] Furthermore, a chamfer is formed at the connection between the outer wall surface of the mating section of the male connector 110 and the mating end face of the male connector 110, and a chamfer is formed at the connection between the end face of the inner wall of the mating cavity of the female connector 120 and the inner wall surface of the mating cavity of the female connector 120. Optionally, the chamfers of the male connector 110 and the female connector 120 can be either rounded or beveled.
[0033] The connecting sleeve 130 has an assembly channel that runs through both ends. The exposed part of the mating section of the male head 110 and the mating section of the female head 120 are both located in the assembly channel of the connecting sleeve 130. The positioning end of the connecting sleeve 130 is engaged with the rear end face of the mating section of the male head 110. The connecting sleeve 130 and the connecting section of the female head 120 are detachably connected, thereby connecting the male head 110 and the female head 120 together.
[0034] Optionally, the inner surface of the connecting sleeve 130 has an internal thread, and the outer wall surface of the mating cavity of the female head 120 has an external thread. The internal thread of the connecting sleeve 130 is threadedly connected to the external thread of the female head 120, thereby achieving a detachable connection between the connecting sleeve 130 and the female head 120. Alternatively, the outer surface of the first positioning protrusion is flush with the outer wall surface of the mating cavity of the female head 120, or the outer surface of the first positioning protrusion is lower than the outer wall surface of the mating cavity of the female head 120, to avoid the first positioning protrusion obstructing the connection between the connecting sleeve 130 and the female head 120. Still optional, the positioning end of the connecting sleeve 130 extends inward with a second positioning protrusion, the front end of the second positioning protrusion contacting and pressing against the rear end surface of the first positioning protrusion, thereby locking and limiting the male head 110. Still optional, the connecting sleeve 130 is hexagonal prism in shape to facilitate screwing the connecting sleeve 130 onto the female head 120.
[0035] When using the highly reliable and reusable sealing structure of this application, first place each inner sealing ring 140 in a second mounting groove and each outer sealing ring 150 in a first mounting groove. Then, insert the mating section of the male head 110 into the mating cavity of the female head 120. Insert the connected male head 110 and female head 120 into the assembly channel of the connecting sleeve 130, so that the connecting sleeve 130 locks the male head 110 and makes the connecting sleeve 130 and the female head 120 detachably connected, thereby completing the assembly of the highly reliable and reusable sealing structure of this application.
[0036] The assembled, highly reliable, and reusable sealing structure features multiple bends at the connection between the male connector 110 and the female connector 120, thereby improving the sealing effect. Furthermore, because the sealing rings are located on different bend surfaces, compared to sealing rings on the same surface, the possibility of all sealing rings failing after insertion is reduced, resulting in a better sealing effect. Each bend surface contains multiple sealing rings, preventing uncertainty about whether some sealing rings are damaged or ineffective after insertion, further ensuring the sealing effect. Moreover, even if one or more inner rings fail, the medium must bypass the first bend and then pass through all the outer sealing rings, which can again prevent gas and liquid leakage. Due to the superior sealing effect of this sealing structure, it is suitable for sealing high-pressure gas and liquid pipeline connections.
[0037] Furthermore, since the sealing structure in this application uses a soft sealing structure such as a sealing ring, compared to the hard sealing structure which requires cutting off the head, then welding, acid washing, and the entire pipeline to be removed, the sealing structure in this application can be adapted to multiple insertions and removals. After insertion and removal, only the sealing ring needs to be replaced, thus the sealing structure can be reused. Moreover, insertion and removal are convenient and do not require the removal of the entire pipeline.
[0038] Because the sealing structure of this application has a good sealing effect, it is suitable for sealing the connection of high-pressure gas and liquid pipelines and can be reused. Therefore, the sealing structure of this application can be applied to relevant pipelines in reusable rockets that require multiple insertions and removals. It not only does not reduce the sealing performance (only the sealing ring needs to be replaced), but also reduces the cost of the rocket.
[0039] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0040] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A highly reliable and reusable sealing structure, characterized in that, include: Male connector, female connector, connecting sleeve, multiple inner sealing rings and multiple outer sealing rings; The female head has a mating cavity formed inside the tube wall of the mating section, and the opening of the mating cavity is located on the mating end face of the female head. The male head's mating section is inserted into the mating cavity from the opening of the mating cavity. All inner and outer sealing rings are located in the mating cavity. All inner sealing rings are located between the inner wall surface of the male connector's mating section and the inner wall surface of the female connector's mating cavity, with a certain distance between adjacent inner sealing rings. All outer sealing rings are located between the outer wall surface of the male connector's mating section and the outer wall surface of the female connector's mating cavity, with a certain distance between adjacent outer sealing rings. The connecting sleeve has an assembly channel that runs through both ends. The exposed part of the male head's mating section and the female head's mating section are both located within the assembly channel of the connecting sleeve. Furthermore, the positioning end of the connecting sleeve is engaged with the rear end face of the male head's mating section, and the connecting sleeve and the female head's connecting section are detachably connected.
2. The highly reliable and reusable sealing structure according to claim 1, characterized in that, The inner diameter of the male connector's mating section is larger than the inner diameter of the other pipe sections of the male connector; The outer diameter of the mating cavity of the female connector is larger than the outer diameter of the other pipe sections of the female connector, and the inner diameter of the inner wall of the mating cavity of the female connector is equal to the inner diameter of the other pipe sections of the female connector and the inner diameter of the other pipe sections of the male connector.
3. The highly reliable and reusable sealing structure according to claim 1 or 2, characterized in that, The outer wall of the male connector has multiple inwardly recessed first mounting grooves, and there is a certain distance between two adjacent first mounting grooves. A portion of an outer sealing ring is located in one of the first mounting grooves.
4. The highly reliable and reusable sealing structure according to claim 3, characterized in that, The inner wall of the mating cavity of the female head has multiple inwardly recessed second mounting grooves, and there is a certain distance between two adjacent second mounting grooves. A portion of an inner sealing ring is located in one of the second mounting grooves.
5. The highly reliable and reusable sealing structure according to claim 1 or 2, characterized in that, The outer wall of the male connector's mating section forms a chamfer at the connection point with the male connector's mating end face, and the inner wall of the female connector's mating cavity forms a chamfer at the connection point with the inner wall of the female connector's mating cavity.
6. The highly reliable and reusable sealing structure according to claim 1 or 2, characterized in that, The inner surface of the connecting sleeve has an internal thread, and the outer wall of the mating cavity of the female head has an external thread. The internal thread of the connecting sleeve is threadedly connected to the external thread of the female head to achieve a detachable connection between the connecting sleeve and the female head.
7. The highly reliable and reusable sealing structure according to claim 6, characterized in that, The connecting sleeve is hexagonal in shape to facilitate screwing it onto the female end.
8. The highly reliable and reusable sealing structure according to claim 3, characterized in that, The outer wall surface of the mating section of the male connector has an outwardly extending first positioning protrusion, and the first positioning protrusion is farther away from the mating end face of the male connector relative to all the first mounting slots. The first positioning protrusion abuts against the end face of the outer wall of the mating cavity of the female head.
9. The highly reliable and reusable sealing structure according to claim 8, characterized in that, The outer surface of the first positioning protrusion is flush with the outer wall of the mating cavity of the female head, or the outer surface of the first positioning protrusion is lower than the outer wall of the mating cavity of the female head.
10. The highly reliable and reusable sealing structure according to claim 8, characterized in that, The positioning end of the connecting sleeve extends inward with a second positioning protrusion. The front end of the second positioning protrusion contacts and presses against the rear end of the first positioning protrusion to lock and limit the male head.