An aeronautical hydraulic oil tank high sealing end cover

Abstract

The utility model discloses an aviation hydraulic oil tank high sealing end cover, including the end cover subassembly of being located in the oil tank body top oil outlet, and the connecting pipe outside of oil outlet extension has sealed connection ring, and its top is equipped with ring groove, and the end cover subassembly contains the end cover body of one end to be located in the oil outlet, and the outside has the sealing sleeve ring of sleeve connection sealed connection ring, and the bottom of sealing ring in the middle installation groove abuts the top of ring groove, and the dismounting plate of sealing sleeve ring top fixes and positions sealing ring, the utility model discloses through sealing sleeve ring, sealing ring and ring groove combination, and the adhesion of enhancing sealing face is fit, prevents the leakage, and the end cover body, sealing sleeve ring, dismounting board etc.

Description

Technical Field

[0001] This utility model specifically relates to a high-sealing end cap for an aviation hydraulic oil tank. Background Technology

[0002] In the aviation field, the hydraulic system is a crucial component ensuring the safe and stable operation of aircraft. The hydraulic oil tank, as the core container for storing hydraulic oil, directly impacts the reliability of the entire hydraulic system. The hydraulic oil tank end cap, as a vital component, plays a decisive role in the tank's sealing performance. Aviation hydraulic oil tanks operate in complex and harsh environments, such as high-altitude low temperatures, high-altitude air pressure variations, and severe vibrations generated during flight. These factors place extremely high demands on the sealing performance of the hydraulic oil tank end cap. If the end cap seal is inadequate, hydraulic oil leakage will inevitably occur. This not only leads to unstable hydraulic system pressure, seriously threatening aircraft controllability and safety, but may also cause additional mechanical failures due to hydraulic oil seepage into other critical components, significantly increasing aircraft maintenance costs and safety hazards.

[0003] The existing end cap uses a simple planar sealing structure, relying solely on a rubber sealing ring for sealing. During aircraft flight, continuous vibrations can gradually loosen the connection between the end cap and the fuel tank body, causing the sealing ring to deform and shift, resulting in a significant decrease in sealing performance. Furthermore, replacing the deformed sealing ring is difficult, affecting the overall performance of the fuel tank and delaying aircraft operation.

[0004] Therefore, it is necessary to invent a high-sealing end cap for aviation hydraulic tanks to solve the above problems. Utility Model Content

[0005] (a) Purpose of the utility model

[0006] To address the technical problems existing in the background art, this utility model proposes a high-sealing end cap for aviation hydraulic oil tanks, which enables quick installation of the oil tank sealing structure and is easy to replace.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a high-sealing end cap for an aviation hydraulic oil tank, comprising an end cap assembly disposed at the oil discharge port on the top of the aviation hydraulic oil tank body;

[0009] The oil unloading port extends upward with a connecting pipe, and a sealing connecting ring is provided on the outside of the connecting pipe, with a ring groove on the top of the sealing connecting ring;

[0010] The end cap assembly includes an end cap body with one end placed inside the oil discharge port. A sealing sleeve is provided on the outside of the end cap body and fitted onto the outside of the sealing connecting ring. An installation groove is provided in the middle of the sealing sleeve, and a sealing ring is installed in the installation groove. The bottom of the sealing ring is placed on the top of the groove. A disassembly plate is also installed on the top of the installation sleeve. The disassembly plate is placed on the top of the installation groove and positions and fixes the sealing ring.

[0011] Preferably, the top of the sealing ring is provided with multiple matching fixing grooves on both sides of the mounting groove, the fixing grooves are matched to fix the disassembly plate, the bottom of the mounting groove inside the sealing ring is also provided with a through groove connecting the ring groove, and the upper and lower sides of the sealing ring are also provided with positioning protrusions, the lower positioning protrusions pass through the through groove and fit in the ring groove.

[0012] Preferably, the sealing ring is fitted into the mounting groove, the bottom of the disassembly plate is provided with a positioning groove that matches the positioning protrusion above the sealing ring, and the bottom of the disassembly plate is provided with fixing blocks that match the fixing groove on both sides of the positioning groove, and the fixing blocks on both sides are fixed in the fixing groove.

[0013] Preferably, the overall cross-section of the fixing groove is L-shaped, a locking block is provided on one side below the fixing block, one side of the locking block is set as an inclined surface, and the locking block is locked to the bottom side of the fixing groove.

[0014] Preferably, the bottom of the sealing collar is further provided with a limiting ring located at the bottom of the mounting groove, and the limiting ring is disposed at the bottom of the sealing connecting ring.

[0015] Preferably, a multi-functional connecting block is also installed on the top of the end cap body.

[0016] Compared with the prior art, the beneficial effects of the above-mentioned technical solution of this utility model are:

[0017] 1. This utility model further enhances the tightness of the sealing surface by combining the sealing collar, sealing ring and ring groove, effectively preventing hydraulic oil leakage;

[0018] 2. The end cap body, sealing ring, disassembly plate and other components of this utility model are nested and positioned with each other, which reduces the gap between components, improves the rigidity of the overall structure, and reduces the probability of sealing failure caused by structural shaking.

[0019] 3. The disassembly plate of this utility model achieves quick disassembly and assembly through the locking structure of the fixing block and the fixing groove. The disassembly plate can be removed and the sealing ring replaced without complicated tools, simplifying the maintenance process. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments 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.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the specific top structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the disassembled end cap structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the end cap portion of this utility model;

[0025] Figure 5 This is a schematic diagram of the fixing groove structure of this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Aviation hydraulic oil tank body; 11. Oil discharge port; 12. Connecting pipe; 13. Sealing connecting ring; 14. Ring groove; 2. End cover assembly; 21. End cover body; 22. Sealing collar; 23. Mounting groove; 24. Sealing ring; 241. Positioning convex ring; 25. Disassembly plate; 251. Positioning groove; 252. Fixing block; 253. Locking block; 26. Fixing groove; 27. Through groove; 28. Limiting ring; 3. Multifunctional connecting block. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0029] This utility model provides, for example Figure 1-5 The high-sealing end cap of the aviation hydraulic oil tank shown includes an end cap assembly 2 disposed at the oil discharge port 11 on the top of the aviation hydraulic oil tank body 1.

[0030] Specifically, the oil unloading port 11 extends upward with a connecting pipe 12, and a sealing connecting ring 13 is provided on the outside of the connecting pipe 12, and a ring groove 14 is provided on the top of the sealing connecting ring 13;

[0031] Specifically, the end cap assembly 2 includes an end cap body 21 with one end placed inside the oil discharge port 11. The end cap body 21 has a sealing sleeve 22 that is sleeved on the outside of the sealing connecting ring 13. The sealing sleeve 22 has an installation groove 23 in the middle. A sealing ring 24 is installed in the installation groove 23. The bottom of the sealing ring 24 is placed on the top of the ring groove 14. A disassembly plate 25 is also installed on the top of the installation sleeve 22. The disassembly plate 25 is placed on the top of the installation groove 23 and positions and fixes the sealing ring 24.

[0032] Reference Figure 2-4 The top of the sealing ring 22 is provided with multiple matching fixing grooves 26 on both sides of the mounting groove 23. The fixing grooves 26 are matched with the fixing and disassembly plate 25. The bottom of the mounting groove 23 inside the sealing ring 22 is also provided with a through groove 27 for connecting the ring groove 14. The upper and lower sides of the sealing ring 24 are also provided with positioning protrusions 241. The lower positioning protrusion 241 passes through the through groove 27 and fits in the ring groove 14.

[0033] Specifically, the sealing ring 24 fits into the mounting groove 23, and the bottom of the disassembly plate 25 is provided with a positioning groove 251 that matches the positioning protrusion 241 above the sealing ring 24. The bottom of the disassembly plate 25 is provided with fixing blocks 252 that match the fixing groove 26 on both sides of the positioning groove 251, and the fixing blocks 252 on both sides are fixed in the fixing groove 26.

[0034] Specifically, the overall cross-section of the fixing groove 26 is L-shaped, and a locking block 253 is provided on one side below the fixing block 252. One side of the locking block 253 is set as an inclined surface, and the locking block 253 is locked to the bottom side of the fixing groove 26.

[0035] Reference Figure 4 The bottom of the sealing ring 22 is located at the bottom of the mounting groove 23 and is also provided with a limiting ring 28, which is located at the bottom of the sealing connecting ring 13.

[0036] Reference Figure 2 The top of the end cap body 21 is also equipped with a multi-functional connecting block 3.

[0037] In this embodiment, before installation, all components must be cleaned to ensure that key sealing parts such as the annular groove 14 of the sealing connecting ring 13, the mounting groove 23 and through groove 27 of the sealing sleeve 22, and the positioning protrusion 241 of the sealing ring 24 are free of impurities and burrs, so as to avoid affecting the sealing performance. At the same time, check whether the fixing block 252 and locking block 253 of the disassembly plate 25 are intact, and ensure that they can properly cooperate with the fixing groove 26. Place the sealing ring 24 into the mounting groove 23 of the sealing sleeve 22, so that the positioning protrusion 241 below the sealing ring 24 passes through the through groove 27. At this time, it is necessary to ensure that the sealing ring 24 is placed flat in the mounting groove 23, and the positioning protrusion 241 below is fully matched with the through groove 27, in preparation for subsequent fitting with the annular groove 14.

[0038] In this embodiment, one end of the end cap body 21 is placed inside the oil discharge port 11 of the aviation hydraulic oil tank body 1, while the sealing sleeve 22 is fitted onto the outside of the sealing connecting ring 13. During this process, the position needs to be adjusted so that the positioning protrusion 241 below the sealing ring 24 accurately fits into the ring groove 14 to ensure initial sealing contact.

[0039] In this embodiment, the disassembly plate 25 is placed on top of the sealing collar 22, so that the positioning groove 251 at the bottom of the disassembly plate 25 matches the positioning protrusion 241 above the sealing ring 24, thereby positioning the sealing ring 24 from the top. Then, the fixing blocks 252 on both sides of the disassembly plate 25 are aligned with the fixing grooves 26 of the sealing collar 22 and inserted. Since the fixing groove 26 has an L-shaped cross-section and one side of the locking block 253 is inclined, while pressing down on the disassembly plate 25, it is rotated at a certain angle to lock the locking block 253 to the bottom side of the fixing groove 26, thus completing the fixing of the disassembly plate 25 and firmly positioning the sealing ring 24 within the mounting groove 23.

[0040] In this embodiment, the positioning protrusions 241 on the upper and lower sides of the sealing ring 24 cooperate with the annular groove 14 and the positioning groove 251 of the disassembly plate 25, respectively, and the sealing ring 24 is completely fitted inside the mounting groove 23. The disassembly plate 25 secures the sealing ring, achieving multi-directional sealing contact and significantly enhancing the sealing effect, effectively preventing hydraulic oil leakage. Simultaneously, the design of the through groove 27 ensures that the lower positioning protrusion 241 can fit tightly with the annular groove 14, further improving the reliability of the seal.

[0041] Specifically, the cooperation between the fixing block 252 and the L-shaped fixing groove 26, as well as the design of the inclined surface of the locking block 253, makes the installation and fixing operation of the disassembly plate 25 simple and efficient, which can be completed without complicated tools, saving installation time.

[0042] Specifically, the positioning and fixing of the sealing ring 24 by the disassembly plate 25 and the longitudinal limiting of the end cap assembly 2 by the limiting ring 28 ensure the structural stability of the entire device during the operation of the aviation hydraulic oil tank, reduce the loosening of components caused by vibration and other factors, and extend the service life of the device.

[0043] Specifically, when the sealing ring 24 needs to be replaced or maintained, simply rotate it in the opposite direction and remove the disassembly plate 25 to easily remove the sealing ring 24. This convenient operation reduces maintenance costs and difficulty.

[0044] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A high-sealing end cap for an aviation hydraulic oil tank, characterized in that: Includes an end cap assembly (2) located at the oil discharge port (11) on the top of the aviation hydraulic oil tank body (1); The oil discharge port (11) extends upward with a connecting pipe (12), and a sealing connecting ring (13) is provided on the outside of the connecting pipe (12), and a ring groove (14) is provided on the top of the sealing connecting ring (13). The end cap assembly (2) includes an end cap body (21) with one end placed inside the oil discharge port (11). The end cap body (21) has a sealing sleeve (22) on its outer side that is fitted outside the sealing connecting ring (13). The sealing sleeve (22) has an installation groove (23) in the middle. A sealing ring (24) is installed in the installation groove (23). The bottom of the sealing ring (24) is placed at the top of the ring groove (14). A disassembly plate (25) is also installed at the top of the sealing sleeve (22). The disassembly plate (25) is placed at the top of the installation groove (23) and positions and fixes the sealing ring (24).

2. The high-sealing end cap for an aviation hydraulic oil tank according to claim 1, characterized in that: The top of the sealing ring (22) is provided with multiple matching fixing grooves (26) on both sides of the mounting groove (23). The fixing grooves (26) are matched and fixed to the disassembly plate (25). The bottom of the mounting groove (23) inside the sealing ring (22) is also provided with a through groove (27) connecting the ring groove (14). The upper and lower sides of the sealing ring (24) are also provided with positioning protrusions (241). The lower positioning protrusion (241) passes through the through groove (27) and fits in the ring groove (14).

3. The high-sealing end cap for an aviation hydraulic oil tank according to claim 2, characterized in that: The sealing ring (24) fits into the mounting groove (23). The bottom of the disassembly plate (25) is provided with a positioning groove (251) that matches the positioning protrusion (241) above the sealing ring (24). The bottom of the disassembly plate (25) is provided with fixing blocks (252) that match the fixing groove (26) on both sides of the positioning groove (251). The fixing blocks (252) on both sides are fixed in the fixing groove (26).

4. The high-sealing end cap for an aviation hydraulic oil tank according to claim 3, characterized in that: The fixed groove (26) has an L-shaped cross section. A locking block (253) is provided on one side below the fixed block (252). One side of the locking block (253) is set as an inclined surface. The locking block (253) is locked to the bottom side of the fixed groove (26).

5. The high-sealing end cap for an aviation hydraulic oil tank according to claim 1, characterized in that: The bottom of the sealing ring (22) is located at the bottom of the mounting groove (23) and a limiting ring (28) is also provided. The limiting ring (28) is located at the bottom of the sealing connecting ring (13).

6. The high-sealing end cap for an aviation hydraulic oil tank according to claim 1, characterized in that: The top of the end cap body (21) is also equipped with a multi-functional connecting block (3).

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