A new type of waterproof connector
By combining the cable sleeve and the sealing sleeve, the problem of the inability to repair and small-batch production of existing aviation connectors is solved, achieving stable sealing and convenient maintenance, and is suitable for customized production of multiple varieties.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LINYI YITONG ELECTRONICS
- Filing Date
- 2025-08-13
- Publication Date
- 2026-06-30
AI Technical Summary
Existing aviation connectors cannot be repaired after damage, and the injection molding method is not suitable for small-batch production, resulting in poor applicability.
It adopts a combination structure of cable sleeve and sealing sleeve, and achieves sealing through detachable connection. It is suitable for small-batch customized production, and improves sealing performance through various sealing rings and limiting structures.
It achieves stable sealing function for aviation connectors, facilitates maintenance, is suitable for small-batch, multi-variety production, and improves applicability and practicality.
Smart Images

Figure CN224438072U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aviation connector technology, specifically a novel waterproof connector. Background Technology
[0002] Aviation electrical connectors, including aviation sockets and aviation plugs, are named after their initial application in the aviation field. They are now widely used in high-reliability scenarios such as aerospace, defense, power, and industrial equipment. Aviation sockets and plugs typically have insulators and insulator covers to facilitate the fixing of pin contacts and socket contacts. Currently, aviation plugs and sockets are made using injection molding or partial injection molding to achieve waterproof performance. However, this method makes the connector unrepairable after damage, limiting its applicability. Furthermore, injection molding requires separate molds, making it unsuitable for small-batch production and thus presenting certain limitations. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a new type of waterproof connector to address the shortcomings of the existing technology, thereby solving at least one of the above-mentioned technical problems.
[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A novel waterproof connector includes a housing, an insulator and an insulator cover plate are provided inside the housing, a plurality of first mounting grooves are provided inside the insulator, and a plurality of second mounting grooves are provided inside the insulator cover plate. Contact elements are installed in the first and second mounting grooves. A connecting seat is provided on the outer side of the housing, and a groove is provided on the side of the connecting seat, with a first sealing ring installed in the groove. A transition cover is threaded to the right end of the housing, and a limiting seat is provided on the left side of the transition cover. A connecting cap is fitted onto the transition cover, and the connecting cap cooperates with the limiting seat. The right end of the transition cover is provided with a sealing sleeve seat. The inner side of the sealing sleeve seat is provided with an expanding trumpet-shaped structure. A sealing sleeve is provided on the inner side of the sealing sleeve seat. The sealing sleeve is provided with a converging conical structure that cooperates with the sealing sleeve seat. A cable sleeve is connected to the right side of the sealing sleeve seat by a thread. The inside of the cable sleeve is provided with a cavity. The side wall of the cable sleeve and the side wall of the sealing sleeve are correspondingly fitted. The right end of the cable sleeve is provided with a clamp seat. A semi-annular first clamp ring is fixedly provided on the clamp seat. The first clamp ring is connected to a semi-annular second clamp ring by a fastener. The first clamp ring and the second clamp ring are fitted together and are correspondingly set with the cable sleeve.
[0005] Furthermore, a first stepped structure is provided on the left side of the housing, and a second stepped structure is provided on the left side of the insulator, the second stepped structure cooperating with the first stepped structure.
[0006] Furthermore, a groove is provided on the right side of the housing, and a limiting ring is provided in the groove. The limiting ring is configured to cooperate with the right end of the insulator cover plate.
[0007] Furthermore, a sealing gasket is provided between the insulator and the insulator cover plate.
[0008] Furthermore, a second sealing ring is provided between the transition cover and the housing.
[0009] Furthermore, the inner side of the connecting cap is provided with threads.
[0010] Furthermore, a third sealing ring is provided between the sealing sleeve and the cable sleeve.
[0011] The beneficial effects of this utility model are:
[0012] This invention achieves a stable seal for aviation connectors by using a cable sleeve in conjunction with a sealing sleeve, thus providing waterproofing. It also features a detachable connection for easy maintenance. The device is manufactured without injection molding, making it suitable for small-batch, multi-variety customized production, and has good applicability and practicality. Attached Figure Description
[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the structure of this utility model.
[0015] The attached diagram lists the components represented by each number as follows:
[0016] 1. Housing; 2. Insulator; 3. First stepped structure; 4. Second stepped structure; 5. First mounting groove; 6. Contact element; 7. Insulator cover plate; 8. Sealing gasket; 9. Second mounting groove; 10. Limiting ring; 11. Connecting seat; 12. First sealing ring; 13. Transition cover; 14. Second sealing ring; 15. Limiting seat; 16. Connecting cap; 17. Sealing sleeve seat; 18. Sealing sleeve; 19. Cable sleeve; 20. Third sealing ring; 21. Clamp seat; 22. First clamp ring; 23. Second clamp ring; 24. Fastener. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations.
[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0019] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0020] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0021] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0022] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0023] Example 1: See Figure 1 This is a schematic diagram of the various structures of this utility model, including a housing 1. An insulator 2 and an insulator cover plate 7 are fitted inside the housing 1. The insulator 2 has several first mounting grooves 5, and the insulator cover plate 7 has several second mounting grooves 9. Contact elements 6 are fitted into the first mounting grooves 5 and second mounting grooves 9, and are fixed inside the housing 1 by the insulator 2 and the insulator cover plate 7. A connecting seat 11 is provided on the outer side of the housing 1. A groove is provided on the side of the connecting seat 11, and a first sealing ring 12 is provided within the groove. The connecting seat 11 is used for mating with a socket, and the first sealing ring 12 provides sealing performance. A transition cover 13 is threaded to the right end of the housing 1. A limit seat 15 is provided on the left side of the transition cover 13. A connecting cap 16 is fitted onto the transition cover 13, and the connecting cap 16 is fitted with the limit seat 15. The connecting cap 16 is used for connecting with the socket. A sealing sleeve 17 is provided on the right end of the transition cover 13. The inner side of the sealing sleeve 17 has an expanded trumpet-shaped structure. A sealing sleeve 18 is provided, which has a converging conical structure that mates with a sealing sleeve seat 17. The sealing sleeve seat 17 compresses the sealing sleeve 18, sealing the cable. A cable sleeve 19 is threadedly connected to the right side of the sealing sleeve seat 17. The cable sleeve 19 has an internal cavity for the cable to pass through. The sidewall of the cable sleeve 19 mates with the sidewall of the sealing sleeve 18. The compression of the cable sleeve 19 causes the sealing sleeve seat 17 to mate with the sealing sleeve 18. A clamp is provided at the right end of the cable sleeve 19. The cable sleeve 19 and the clamp seat 21 are detachably connected. A semi-circular first clamp ring 22 is fixedly installed on the clamp seat 21. The first clamp ring 22 is connected to a semi-circular second clamp ring 23 by fasteners 24. After the first clamp ring 22 and the second clamp ring 23 are engaged, they are correspondingly set with the cable sleeve 19. The cable is fixed by the first clamp ring 22 and the second clamp ring 23 to prevent the sealing sleeve 18 from deforming when the cable is bent, so as to avoid deformation between the sealing sleeve 18 and the cable, which would affect the sealing performance.
[0024] Specifically, a first stepped structure 3 is provided on the left side of the housing 1, and a second stepped structure 4 is provided on the left side of the insulator 2. The second stepped structure 4 cooperates with the first stepped structure 3 to limit the insulator 2.
[0025] Specifically, a groove is provided on the right side of the housing 1, and a limiting ring 10 is provided in the groove. The limiting ring 10 is configured to cooperate with the right end of the insulator cover plate 7 to limit the position of the insulator cover plate 7.
[0026] Specifically, a sealing gasket 8 is provided between the insulator 2 and the insulator cover plate 7 to improve the sealing performance.
[0027] Specifically, a second sealing ring 14 is provided between the transition cover 13 and the housing 1 to improve the sealing performance.
[0028] Specifically, the inner side of the connector cap 16 is threaded, and it is connected to the socket through the thread.
[0029] Specifically, a third sealing ring 20 is provided between the sealing sleeve 18 and the cable sleeve 19 to improve the sealing performance.
[0030] In using this utility model, the connector is fixed inside the housing 1 by the insulator 2 and the insulator cover 7. The insulator 2 and the insulator cover 7 are limited by the installation limiting ring 10. The clamp seat 21 is installed on the cable sleeve 19. The cable sleeve 19, the sealing sleeve 18, the connecting cap 16, and the transition cover 13 are sequentially fitted onto the cable. The ends of the cable are stripped. The wires on the cable are sequentially connected to the connector, which can be done by crimping or welding. The transition cover 13 is installed on the housing 1. The connector is then connected... The cap 16 is fitted onto the transition cover 13, and the sealing sleeve 18 is fitted into the sealing sleeve seat 17. The cable sleeve 19 is connected to the sealing sleeve seat 17 by threads and tightened to seal the cable. The second clamping ring 23 is installed onto the first clamping ring 22 by fastener 24 and the connector is tightened. The cable is fixed to the clamping seat 21 by the first clamping ring 22 and the second clamping ring 23, thus completing the installation of the device. If the internal parts are damaged, they can be disassembled in sequence, replaced and reassembled.
[0031] The above are merely optional embodiments of this utility model and are not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
[0032] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.
Claims
1. A novel waterproof connector, characterized in that: The device includes a housing (1), an insulator (2) and an insulator cover plate (7) are provided inside the housing (1). The insulator (2) has several first mounting grooves (5) inside, and the insulator cover plate (7) has several second mounting grooves (9) inside. Contact elements (6) are installed in the first mounting grooves (5) and the second mounting grooves (9). A connecting seat (11) is provided on the outside of the housing (1). The side of the connecting seat (11) has a groove and a first sealing ring (12) is provided in the groove. A transition cover (13) is connected to the right end of the housing (1) by a thread. A limit seat (15) is provided on the left side of the transition cover (13). A connecting cap (16) is fitted on the transition cover (13). The connecting cap (16) is fitted with the limit seat (15). A sealing sleeve is provided on the right end of the transition cover (13). (17) The inner side of the sealing sleeve (17) is provided with an expanding trumpet-shaped structure. The inner side of the sealing sleeve (17) is provided with a sealing sleeve (18). The sealing sleeve (18) is provided with a converging conical structure that cooperates with the sealing sleeve (17). The right side of the sealing sleeve (17) is connected to a cable sleeve (19) by a thread. The inside of the cable sleeve (19) is provided with a cavity. The side wall of the cable sleeve (19) is correspondingly cooperated with the side wall of the sealing sleeve (18). The right end of the cable sleeve (19) is provided with a clamp seat (21). A semi-circular first clamp ring (22) is fixedly provided on the clamp seat (21). The first clamp ring (22) is connected to a semi-circular second clamp ring (23) by a fastener (24). The first clamp ring (22) and the second clamp ring (23) are correspondingly provided with the cable sleeve (19) after they cooperate.
2. The novel waterproof connector according to claim 1, characterized in that: The left side of the housing (1) is provided with a first stepped structure (3), and the left side of the insulator (2) is provided with a second stepped structure (4), the second stepped structure (4) and the first stepped structure (3) are engaged.
3. The novel waterproof connector according to claim 1, characterized in that: The right side of the housing (1) is provided with a groove and a limiting ring (10) is provided in the groove. The limiting ring (10) is configured to cooperate with the right end of the insulator cover plate (7).
4. The novel waterproof connector according to claim 1, characterized in that: A sealing gasket (8) is provided between the insulator (2) and the insulator cover plate (7).
5. The novel waterproof connector according to claim 1, characterized in that: A second sealing ring (14) is provided between the transition cover (13) and the shell (1).
6. The novel waterproof connector according to claim 1, characterized in that: The inner side of the connecting cap (16) is provided with threads.
7. The novel waterproof connector according to claim 1, characterized in that: A third sealing ring (20) is provided between the sealing sleeve (18) and the cable sleeve (19).