A new air-tight adapter structure
By using multiple sets of sealing gaskets in a compression fit and designing sealing components, the stress concentration problem caused by the fixing of the insert after glue filling in the airtight adapter is solved, achieving efficient sealing and stability of docking parameters, and meeting the needs of high-precision equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI TELIAN PHOTOELECTRIC TECH CO LTD
- Filing Date
- 2025-08-15
- Publication Date
- 2026-08-04
AI Technical Summary
Existing airtight adapters fix the insert contact parts after sealing with glue, thus losing the space for movement. This makes it easy for stress concentration to occur due to positional deviation during docking, affecting the stability of docking parameters and making it difficult to meet the needs of high-precision equipment.
The design employs a combination of multiple sets of sealing gaskets and sealing components, including a plug plate, plug body baffle, and fastening screws, to ensure a tight seal while providing adaptive space for the plug core and preventing stress concentration.
It achieves efficient sealing, ensures stable docking parameters, meets the requirements of high-precision equipment, and enhances the practicality and connection stability of the device.
Smart Images

Figure CN224595897U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of airtight adapters, and in particular to a novel airtight adapter structure. Background Technology
[0002] As a key component for achieving stable connection and airtight isolation between parts, the performance of the airtight adapter directly affects the operational reliability of the entire system. With the development of related equipment towards higher precision and higher stability, higher requirements are placed on the sealing effect, structural adaptability and connection stability of the airtight adapter.
[0003] Conventional airtight adapters achieve airtightness by potting glue. While this meets the airtightness requirements, the glue fixes the ferrule contacts, eliminating their mobility and preventing self-adjustment. This leads to stress concentration due to positional deviations during docking, affecting the stability of docking parameters and failing to meet insertion loss requirements. Consequently, it is difficult to adapt to the needs of high-precision equipment and has poor applicability.
[0004] To address these issues, a novel airtight adapter structure is proposed. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a novel airtight adapter structure, which aims to improve the problem in the prior art where potting causes the ferrule contact parts to be fixed and lose their space for self-adjustment, thus making it easy for stress concentration to occur due to positional deviation during docking, affecting the stability of docking parameters and failing to meet the insertion loss requirements.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a novel airtight adapter structure, comprising an adapter shell, wherein a sealing component is provided inside the adapter shell, and an mounting base is fixedly connected to the middle section of the outer wall of the adapter shell;
[0007] The sealing assembly includes a plug plate, a sealing gasket C is provided on the right surface of the plug plate, a plug body baffle is provided on the right surface of the sealing gasket C, a fastening screw is fixedly connected to the outer wall of the plug body baffle, the fastening screw is threaded to the right section of the inner wall of the adapter housing, sealing gaskets A are fixedly connected to both ends of the inner surface of the adapter housing, a tail shank is inserted into the inner wall of the sealing gasket C, a plug is installed at both ends of the tail shank, and a positioning pin is inserted through the inner surface of the sealing gasket C.
[0008] As a further description of the above technical solution:
[0009] The edge of the left surface of the insert plate abuts against the left end of the inner wall of the adapter housing.
[0010] As a further description of the above technical solution:
[0011] Sealing gaskets B are inserted into the left surface of the plug plate and the right surface of the plug body baffle.
[0012] As a further description of the above technical solution:
[0013] The back surfaces of the two sets of sealing gaskets B and the adjacent surfaces of the two sets of sealing gaskets A are bonded together.
[0014] As a further description of the above technical solution:
[0015] The left surface of the plug plate and the right surface of the plug body baffle are both provided with insertion holes, and the left and right ends of the sealing gasket B are both designed to be raised.
[0016] As a further description of the above technical solution:
[0017] The plug is inserted into the inner wall of the plug plate and the plug body baffle, and the plug passes through the left end of the plug plate and the right end of the plug body baffle.
[0018] As a further description of the above technical solution:
[0019] The left end of the positioning pin and the tail shank are both inserted into the right surface of the insert plate, and the right end of the positioning pin and the tail shank are both inserted into the left surface of the plug body baffle.
[0020] This utility model has the following beneficial effects:
[0021] 1. In this utility model, sealing is achieved by the compression and cooperation of multiple sets of sealing gaskets. With the cooperation of the sealing components, after the sealing gasket C is installed, multiple compression sealing areas can be formed to achieve efficient sealing. The sealing gasket C is soft and flexible, which not only ensures good airtightness inside the adapter, but also provides adaptive space for the insert, avoids stress concentration caused by position deviation, ensures stable docking parameters, meets insertion loss requirements, and enhances the practicality of the device.
[0022] 2. In this utility model, the left and right ends of the sealing assembly can be firmly fixed inside the adapter housing by the action of the insert plate and fastening bolts in the sealing assembly, which can ensure the stability of the sealing assembly and provide a guarantee for the stability of airtightness during use. Attached Figure Description
[0023] Figure 1 This is a front view of the three-dimensional structure of the overall device in this utility model;
[0024] Figure 2 This is a three-dimensional structural breakdown diagram of the overall device in this utility model;
[0025] Figure 3This is a three-dimensional cross-sectional view of the overall device in this utility model;
[0026] Figure 4 This is a cross-sectional view of the three-dimensional structure of the sealing gasket C in this utility model under compression.
[0027] Legend:
[0028] 1. Adapter housing; 21. Sealing gasket A; 22. Sealing gasket B; 23. Insert plate; 24. Sealing gasket C; 25. Plug body baffle; 26. Fastening screw; 27. Plug core; 28. Tail handle; 29. Positioning pin; 3. Mounting base; 4. Side compression sealing area; 5. Main body plane compression sealing area; 6. Plug core outer compression sealing area. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Reference Figure 1 - Figure 2 One embodiment of this utility model is a novel airtight adapter structure, which includes an adapter housing 1 for connecting an overall device. The adapter housing 1 is provided with a sealing component for providing an effective seal. A mounting base 3 for easy device installation is fixedly connected to the middle section of the outer wall of the adapter housing 1. Mounting holes are provided at the four corners of the mounting base 3, and the device can be fixed to the mounting plate by using screws through the holes.
[0031] Reference Figure 1 - Figure 3The sealing assembly includes an insert plate 23 for positioning the device. The insert plate 23 is inserted through the right side opening of the adapter housing 1. When inserted into place, the left edge of the insert plate 23 will be in close contact with the adapter housing 1. A sealing gasket C24 is provided on the right surface of the insert plate 23. The sealing gasket C24 is made of a relatively soft material, which provides a certain degree of mobility while sealing. A plug body baffle 25 for connecting fastening screws 26 is provided on the right surface of the sealing gasket C24. The outer wall of the plug body baffle 25 is fixedly connected to fastening screws 26 for fixing the sealing assembly to the adapter housing 1. The six threads are connected to the right section of the inner wall of the adapter housing 1, which can achieve stable installation. Both ends of the inner surface of the adapter housing 1 are fixedly connected with sealing gaskets A21 to achieve edge sealing. The inner wall of the sealing gasket C24 is inserted with a tail shank 28. Both ends of the tail shank 28 are equipped with inserts 27. The inner surface of the sealing gasket C24 is penetrated by a positioning pin 29. The tail shank 28, inserts 27 and positioning pins 29 are used to connect the plug plate 23, the sealing gasket C24 and the plug body baffle 25. There is a certain gap between the plug plate 23, the plug body baffle 25 and the tail shank 28.
[0032] Reference Figure 1 - Figure 3 The edge of the left surface of the plug plate 23 abuts against the left end of the inner wall of the adapter housing 1, ensuring stable installation. Sealing gaskets B22 are inserted into the left surface of the plug plate 23 and the right surface of the plug body baffle 25. The plug core 27 is inserted into the inner wall of the plug plate 23 and the plug body baffle 25, and the plug core 27 passes through the left end of the plug plate 23 and the right end of the plug body baffle 25. The plug core 27 passes through the plug plate 23, the sealing gasket B22, and the plug body baffle 25. The left ends of the positioning pin 29 and the tail shank 28 are inserted into the right surface of the plug plate 23, and the right ends of the positioning pin 29 and the tail shank 28 are inserted into the left surface of the plug body baffle 25. The left and right sides of the positioning pin 29 are in contact with the inner walls of the plug plate 23 and the plug body baffle 25, which can position the tail shank 28.
[0033] Reference Figure 1 - Figure 3 The back surfaces of the two sets of sealing gaskets B22 and the adjacent surfaces of the two sets of sealing gaskets A21 are fitted together to achieve a seal. The left surface of the plug plate 23 and the right surface of the plug body baffle 25 are both provided with insertion holes. The left and right ends of the sealing gasket B22 are both set as protrusions, and the protrusions are inserted into the insertion holes to achieve the connection between the plug plate 23 and the sealing gasket B22.
[0034] Reference Figure 1 , Figure 3 , Figure 4Upon completion of installation, the outer wall of the sealing gasket C24 will be pressed against the adapter housing 1, the inner wall of the sealing gasket C24 will be pressed against the outer wall of the tail shank 28, and the right end of the sealing gasket C24 will be pressed against the left side of the plug body baffle 25 after installation and tightening. Figure 4 The three extrusion areas shown are: side extrusion sealing area 4, main body plane extrusion sealing area 5, and outer extrusion sealing area 6 of the insert.
[0035] Working principle: This device can be mounted on the mounting plate by using screws through the mounting holes on the mounting base 3. Before installation, the sealing component is installed in the adapter housing 1.
[0036] During installation, first insert the tailstock 28 and the positioning pin 29 into the sealing gasket C24. During this process, the left-side insert 27 will pass through the sealing gasket C24. Then, align the holes on the insert plate 23 and the plug body baffle 25 with the tailstock 28 and the positioning pin 29, so that the insert plate 23 and the plug body baffle 25 fit over the left and right sections of the outer wall of the tailstock 28 and the positioning pin 29, respectively. Ensure that the adjacent surfaces of the insert plate 23, the sealing gasket C24, and the plug body baffle 25 are in contact, and that the insert 27, tailstock 28, and positioning pin 29 are aligned. Pin 29 prevents relative rotation between plug plate 23, sealing gasket C24, and plug body baffle 25. Then, sealing gasket B22 is installed on the left end of plug plate 23 and the right end of plug body baffle 25. The assembled plug plate 23, sealing gasket C24, and plug body baffle 25 are then inserted into the adapter housing 1 from left to right and secured with fastening screws 26. When the installation is complete, the left edge of plug plate 23 will abut against the inner wall of adapter housing 1 to achieve fixation and ensure a seal.
[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A novel airtight adapter structure, comprising an adapter shell (1), characterized in that: The adapter housing (1) is provided with a sealing component inside, and a mounting base (3) is fixedly connected to the middle section of the outer wall of the adapter housing (1); The sealing assembly includes a plug plate (23), a sealing gasket C (24) is provided on the right surface of the plug plate (23), a plug body baffle (25) is provided on the right surface of the sealing gasket C (24), a fastening screw (26) is fixedly connected to the outer wall of the plug body baffle (25), the fastening screw (26) is threaded to the right section of the inner wall of the adapter housing (1), a sealing gasket A (21) is fixedly connected to both the left and right ends of the inner surface of the adapter housing (1), a tail shank (28) is inserted into the inner wall of the sealing gasket C (24), a plug core (27) is installed at both the left and right ends of the tail shank (28), and a positioning pin (29) is inserted through the inner surface of the sealing gasket C (24).
2. The novel airtight adapter structure according to claim 1, characterized in that: The edge of the left surface of the insert plate (23) abuts against the left end of the inner wall of the adapter housing (1).
3. The novel airtight adapter structure according to claim 1, characterized in that: Sealing gaskets B (22) are inserted into the left surface of the plug plate (23) and the right surface of the plug body baffle (25).
4. The novel airtight adapter structure according to claim 3, characterized in that: The opposite sides of the two sets of sealing gaskets B (22) and the adjacent sides of the two sets of sealing gaskets A (21) are bonded together.
5. The novel airtight adapter structure according to claim 3, characterized in that: The left surface of the plug plate (23) and the right surface of the plug body baffle (25) are both provided with plug holes, and the left and right ends of the sealing gasket B (22) are both set as protrusions.
6. The novel airtight adapter structure according to claim 1, characterized in that: The plug (27) is inserted into the inner wall of the plug plate (23) and the plug body baffle (25), and the plug (27) passes through the left end of the plug plate (23) and the right end of the plug body baffle (25).
7. The novel hermetic adapter structure of claim 1, wherein: The left ends of the positioning pin (29) and the tail (28) are inserted into the right surface of the insert plate (23), and the right ends of the positioning pin (29) and the tail (28) are inserted into the left surface of the plug body baffle (25).