Elastic sealing connector
By using an annular elastic seal to scrape away dust and form a double sealing structure in the connector, the problems of increased contact resistance and signal instability caused by dust are solved, achieving efficient sealing and reliable signal transmission of the connector.
Patent Information
- Application Number
- CN202520545996.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-26
AI Technical Summary
Dust can easily accumulate on the surface of the connector during long-term use or under harsh conditions, leading to increased contact resistance, decreased signal transmission stability, and even short circuits or oxidation corrosion. Dust can also easily enter the gaps between the connector and the interface.
A flexible sealing connector was designed, which uses an annular elastic seal to scrape away dust during the insertion process, and forms a double sealing structure through the compression deformation of the annular elastic seal when the insertion is completed, preventing dust from entering the gap between the insertion part and the interface.
It effectively prevents dust from entering the gaps between the connector and the interface, improves the reliability and sealing of signal transmission, and facilitates the replacement and cleaning of the annular elastic seal.
Smart Images

Figure CN223927819U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connectors, and more specifically, to a resiliently sealed connector. Background Technology
[0002] Connectors are key components in electronic systems used to establish circuit or signal connections. They typically consist of contacts (such as pins and sockets), insulators (to maintain contact spacing and insulation), and housings (for mechanical protection and guidance). They are widely used in communication equipment, automotive electronics, industrial control, consumer electronics, and aerospace. Their core function is to establish a stable electrical path through a pluggable mechanical structure, ensuring the reliability and integrity of signal transmission.
[0003] Dust tends to accumulate on the surface (outer wall) of the connector plug during long-term use or under harsh conditions (such as industrial sites and outdoor equipment). When the plug is inserted into the socket, the dust is carried into the gap between the plug and the socket, leading to increased contact resistance, decreased signal transmission stability, and even short circuits or oxidation corrosion. Furthermore, during daily connection of the plug and socket, the lack of a seal allows dust to easily enter the gap between the plug and the socket, exacerbating the aforementioned problems.
[0004] Therefore, in order to solve the above-mentioned technical problems, this application proposes a connector with a flexible seal. Utility Model Content
[0005] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a connector with elastic sealing.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a resiliently sealed connector, comprising a socket and a plug, wherein the socket has an interface, and the plug includes a plug portion and a tail cover located behind the plug portion. An annular resilient seal is installed on the surface of the interface. When the plug portion is inserted into the interface, the inner wall of the annular resilient seal is in close contact with and slides relative to the outer wall of the plug portion, scraping away dust on the plug portion. When the plug portion is fully inserted, the surface of the tail cover contacts the surface of the annular resilient seal, and the surface of the annular resilient seal is compressed, improving the sealing performance of the connection.
[0007] Preferably, the annular elastic seal is an annular rubber gasket.
[0008] Preferably, the annular rubber pad has a root, and an outer lip and an inner lip integrally formed with the root at the top of the root, the outer lip and the inner lip forming a V-shaped structure.
[0009] Preferably, the annular elastic seal is detachably connected to the socket.
[0010] Preferably, the surface of the socket has an annular groove at the interface, the annular groove extends outward to form a square groove, an annular plate is inserted inside the annular groove, a square connecting plate is integrally formed on the outer side wall of the annular plate, and the annular elastic seal is installed on the inner side wall of the annular plate.
[0011] Preferably, screws are fixedly connected to the inner surface of the square groove, and through holes are provided on the square connecting plate for the screws to pass through.
[0012] Preferably, the surface of the socket is fixedly connected to the head part of the square connecting plate with a guide rail for sliding the slider, the slider is fixedly connected to a baffle, and a magnet A is installed on the side end of the baffle. The surface of the socket is also equipped with a magnet B that attracts the magnet A.
[0013] Compared with the prior art, the present invention has the following beneficial effects:
[0014] 1. This utility model uses an annular elastic seal to scrape away dust adhering to the surface of the plug part outwards, preventing dust from entering the gap between the plug part and the interface during the plugging action. When the plug part is fully inserted, the front end face of the tail cover contacts the end face of the annular elastic seal and applies axial pressure, forcing the elastic seal to undergo compression deformation in both the radial and axial directions. On the one hand, this forms a first dustproof sealing barrier between the inner wall of the annular elastic seal and the outer wall of the plug part; on the other hand, it forms a second sealing structure between the end face of the annular elastic seal and the surface of the tail cover. This double sealing effectively prevents external dust from intruding into the mating gap between the plug part and the interface, thus solving the problem in the prior art where dust on the plug part is carried into the gap between the plug part and the interface during the plugging action, and dust also easily enters the gap between the plug part and the interface during connection.
[0015] 2. This utility model designs the annular elastic seal and the socket to be detachably connected, so as to facilitate the replacement and cleaning of the annular elastic seal;
[0016] 3. The annular rubber pad of this utility model has a root, and an outer lip and an inner lip integrally formed with the root at the top of the root. The outer lip and the inner lip form a V-shaped structure. The V-shaped structure has a certain interference fit. Through its own elasticity, it can increase the contact force with the insertion part, thereby scraping away dust more deeply. It can also achieve a better sealing effect with the outer wall of the insertion part after the insertion part is inserted. Attached Figure Description
[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:
[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention (first fixing method);
[0019] Figure 2 This utility model Figure 1 Enlarged view of the local structure of A;
[0020] Figure 3 This is a schematic diagram of the specific structure of the socket of this utility model when the annular elastic sealing element is not installed (first fixing method);
[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the socket in this utility model (first fixing method);
[0022] Figure 5 This is a schematic diagram of the specific structure of the second fixing method used in this utility model;
[0023] Figure 6 This utility model Figure 5 A magnified view of the local structure of A.
[0024] In the diagram: 1. Socket; 101. Interface; 2. Plug; 201. Plug-in part; 202. Tail cover; 3. Annular elastic seal; 301. Annular rubber pad; 3011. Root; 3012. Outer lip; 3013. Inner lip; 4. Annular groove; 5. Square groove; 6. Annular plate; 7. Square connecting plate; 8. Screw; 9. Through hole; 10. Guide rail; 11. Slider; 12. Baffle; 13. Magnet A; 14. Magnet B. Detailed Implementation
[0025] like Figure 1-5 As shown, this utility model provides a resiliently sealed connector, including a socket 1 and a plug 2. The socket 1 has an interface 101, and the plug 2 includes a plug portion 201 and a tail cover 202 located behind the plug portion 201. An annular resilient seal 3 is installed on the surface of the interface 101. When the plug portion 201 is inserted into the interface 101, the inner wall of the annular resilient seal 3 is in close contact with the outer wall of the plug portion 201 and slides relative to it, scraping away dust on the plug portion 201. When the plug portion 201 is fully inserted, the surface of the tail cover 202 contacts the surface of the annular resilient seal 3, and the surface of the annular resilient seal 3 is compressed, improving the sealing performance of the connection.
[0026] When the plug 2's insertion part 201 is inserted into the socket 1's interface 101, the inner wall of the annular elastic seal 3 uses its elastic deformation characteristics to fit tightly against the outer wall of the insertion part 201. Through the friction generated by their relative sliding, the dust attached to the surface of the insertion part 201 is scraped and removed to the outside, preventing dust from entering the gap between the insertion part 201 and the interface 101 during the insertion action. When the insertion part 201 is fully inserted, the front end face of the tail cover 202 contacts the end face of the annular elastic seal 3 and applies axial pressure, forcing the elastic seal to undergo compression deformation in both the radial and axial directions. On the one hand, this forms a first dustproof sealing barrier between the inner wall of the annular elastic seal 3 and the outer wall of the insertion part 201. On the other hand, it forms a second sealing structure between the end face of the annular elastic seal 3 and the surface of the tail cover 202. The double sealing effect effectively prevents external dust from entering the mating gap between the insertion part 201 and the interface 101.
[0027] Furthermore, the annular elastic seal 3 is an annular rubber pad 301. The annular rubber pad 301 has a root 3011, and an outer lip 3012 and an inner lip 3013 integrally formed with the root 3011 at the top of the root 3011. The outer lip 3012 and the inner lip 3013 form a V-shaped structure. The V-shaped structure has a certain interference fit. Through its own rebound force, it can increase the contact force with the insertion part 201, thereby scraping away dust more deeply. It can also achieve a better sealing effect with the outer wall of the insertion part 201 after the insertion part 201 is inserted.
[0028] To facilitate the replacement and cleaning of the annular elastic seal 3, this utility model designs the annular elastic seal 3 and the socket 1 to be detachably connected: the surface of the socket 1 is provided with an annular groove 4 at the interface 101, the annular groove 4 extends to form a square groove 5, an annular plate 6 is inserted into the annular groove 4, and a square connecting plate 7 is integrally formed on the outer side wall of the annular plate 6. The annular elastic seal 3 is installed on the inner side wall of the annular plate 6.
[0029] Align the annular plate 6 with the annular groove 4 and the square connecting plate 7 with the square groove 5. Then, as the annular plate 6 is inserted into the annular groove 4, the square connecting plate 7 is also inserted into the square groove 5. The annular elastic seal 3 will then reach its installation position and can be fixed. This utility model provides two fixing methods:
[0030] The first fixing method: Screws 8 are fixedly connected to the inner surface of the square groove 5. The square connecting plate 7 has through holes 9 for the screws 8 to pass through. That is, when the annular plate 6 is inserted into the annular groove 4 and the square connecting plate 7 is inserted into the square groove 5, the screws 8 also pass through the through holes 9 of the square connecting plate 7. Then, the nut is rotated clockwise to install the nut on the screw 8. The nut moves along the screw 8 and slowly abuts against the surface of the square connecting plate 7, thus fixing the square connecting plate 7 in the square groove 5, which completes the fixing of the annular elastic seal 3.
[0031] The second fixing method: A guide rail 10 for sliding slider 11 is fixedly connected to the head of the square connecting plate 7 on the surface of the socket 1. A baffle 12 is fixedly connected to the slider 11, and a magnet A13 is installed on the side end of the baffle 12. A magnet B14 that attracts magnet A13 is also installed on the surface of the socket 1. That is, when the annular plate 6 is inserted into the annular groove 4 and the square connecting plate 7 is inserted into the square groove 5, the baffle 12 is pushed to move. The baffle 12 drives the slider 11 to move. The slider 11 slides along the guide rail 10 until magnet A13 on the slider 11 is close to magnet B14. When the two come into contact, they will attract each other (it takes force to separate them), thereby fixing the position of the baffle 12. At this time, the baffle 12 just abuts against the square connecting plate 7, thereby fixing the square connecting plate 7 in the square groove 5, thus completing the fixing of the annular elastic seal 3.
[0032] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or equivalent variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are considered equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.
Claims
1. A resiliently sealed connector comprising a socket (1) and a plug (2), the socket (1) having an interface (101), the plug (2) comprising a insertion portion (201) and a tail cover (202) located behind the insertion portion (201), characterized in that: The surface of the interface (101) is equipped with an annular elastic seal (3). When the plug (201) is inserted into the interface (101), the inner wall of the annular elastic seal (3) is in close contact with the outer wall of the plug (201) and slides relative to it, scraping away the dust on the plug (201). When the plug (201) is fully inserted, the surface of the tail cover (202) is in contact with the surface of the annular elastic seal (3), and the surface of the annular elastic seal (3) is compressed, improving the sealing of the connection.
2. The connector with an elastic seal according to claim 1, characterized in that: The annular elastic seal (3) is an annular rubber pad (301).
3. The connector with an elastic seal according to claim 2, characterized in that: The annular rubber pad (301) has a root (3011), and an outer lip (3012) and an inner lip (3013) integrally formed with the root (3011) at the top of the root (3011), the outer lip (3012) and the inner lip (3013) forming a V-shaped structure.
4. The connector with an elastic seal according to claim 1, characterized in that: The annular elastic seal (3) is detachably connected to the socket (1).
5. The connector with an elastic seal according to claim 4, characterized in that: The surface of the socket (1) is provided with an annular groove (4) at the interface (101). The annular groove (4) extends to form a square groove (5) in all directions. An annular plate (6) is inserted inside the annular groove (4). A square connecting plate (7) is integrally formed on the outer side wall of the annular plate (6). The annular elastic seal (3) is installed on the inner side wall of the annular plate (6).
6. The connector with an elastic seal according to claim 5, characterized in that: Each of the square grooves (5) has a screw (8) fixedly connected to its inner surface, and the square connecting plate (7) has a through hole (9) for the screw (8) to pass through.
7. The connector with an elastic seal according to claim 5, characterized in that: The surface of the socket (1) is fixedly connected to the head of the square connecting plate (7) with a guide rail (10) for sliding the slider (11). A baffle (12) is fixedly connected to the slider (11), and a magnet A (13) is installed on the side of the baffle (12). A magnet B (14) that attracts the magnet A (13) is also installed on the surface of the socket (1).