Aviation plug watertight connector

Abstract

The utility model relates to the technical field of connectors, and provides an aviation plug watertight connector, which is characterized in that a first insertion core is arranged in a base, and a male pin is arranged on the first insertion core; the check ring is arranged on the injection molding elastomer and located at the end, facing the base, of the injection molding elastomer. The inner end of the shell penetrates through the check ring to be connected with the injection molding elastomer, the outer end of the shell sleeves the periphery of the base, the outer wall of the shell is provided with a limiting boss, and the end face of the end, away from the injection molding elastomer, of the check ring makes contact with the limiting boss. The second insertion core is arranged in the shell, the second insertion core is provided with a female pin, and the female pin is inserted into the male pin; the lock cap sleeves the periphery of the shell, a limiting convex ring is arranged on the inner wall of one end, facing the check ring, of the lock cap, the limiting convex ring sleeves the periphery of the check ring and is clamped with the limiting boss, and the other end of the lock cap is in threaded connection with the base. By means of the technical scheme, the problems that an aviation plug watertight connector is large in overall size, large in occupied space, high in cost and incapable of better meeting use requirements in the prior art are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, and specifically to aviation plug waterproof connectors. Background Art

[0002] An aviation plug waterproof connector is a connector specifically designed to provide reliable electrical connections in humid or underwater environments, and is widely used in occasions that require waterproof, dustproof, and corrosion-resistant properties, such as ocean engineering, ships, diving equipment, outdoor equipment, military equipment, and other applications that need to work in harsh environments. The current aviation plug waterproof connectors are relatively large in overall volume, occupy a large space, and have a high cost, and cannot better meet the usage requirements. Summary of the Utility Model

[0003] The utility model provides an aviation plug waterproof connector, which solves the problems in the related art that the aviation plug waterproof connector is relatively large in overall volume, occupies a large space, has a high cost, and cannot better meet the usage requirements.

[0004] The technical solution of the utility model is as follows: An aviation plug waterproof connector, characterized by comprising:

[0005] A base,

[0006] A first insert core, which is arranged inside the base, and the first insert core has male pins;

[0007] An injection molded elastomer,

[0008] A retaining ring, which is arranged on the injection molded elastomer and is located at one end of the injection molded elastomer facing the base;

[0009] A housing, the inner end of which passes through the retaining ring and is connected to the injection molded elastomer, the outer end of the housing is sleeved around the periphery of the base, there is a limiting boss on the outer wall of the housing, and the end face of the retaining ring away from the injection molded elastomer contacts the limiting boss;

[0010] A second insert core, which is arranged inside the housing, the second insert core has female pins, and the female pins are inserted into the male pins;

[0011] A lock nut, which is sleeved around the periphery of the housing, there is a limiting ring on the inner wall of the lock nut facing the retaining ring, the limiting ring is sleeved around the periphery of the retaining ring and is clamped with the limiting boss, and the other end of the lock nut is threadedly connected to the base.

[0012] The outer wall of one end of the retaining ring facing the base has an annular chute, the limiting convex ring is slidably connected to the chute, the length of the chute along the axial direction of the retaining ring is h, the thickness of the limiting convex ring is h1, the length of the threaded connection between the lock nut and the base is h2, and h≥h1 + h2.

[0013] It further includes an anti - detachment ring, the number of the anti - detachment rings is at least two, all the anti - detachment rings are arranged circumferentially around the retaining ring and are all located in the chute, and the adjacent two anti - detachment rings are hooked and connected.

[0014] The base includes a first pipe body, a second pipe body and a third pipe body connected in sequence, the outer diameters of the first pipe body, the second pipe body and the third pipe body decrease in sequence, the outer end of the outer shell is sleeved around the third pipe body, the outer diameter of the outer end of the outer shell is equal to the outer diameter of the second pipe body, the end face of the outer end of the outer shell is in contact with the end face of the second pipe body, the lock nut is threadedly connected to the outer wall of the second pipe body, and the outer diameter of the base is less than or equal to the outer diameter of the lock nut.

[0015] It further includes a first sealing ring, and the first sealing ring is arranged between the base and the outer shell.

[0016] The outer wall of the base has a first receiving groove, and the first sealing ring is arranged at the first receiving groove.

[0017] It further includes a connecting sleeve, the connecting sleeve is arranged on the base and is located at one end of the base away from the outer shell, and the connecting sleeve has an external thread.

[0018] The outer diameter of the connecting sleeve is less than the outer diameter of the base, the end face of the base near the connecting sleeve has a second receiving groove, the second receiving groove is located around the connecting sleeve, and it further includes a second sealing ring, and the second sealing ring is arranged at the second receiving groove.

[0019] The outer wall of the lock nut has at least two protruding limiting rings, and all the limiting rings are arranged along the axial direction of the lock nut.

[0020] The outer wall of the limiting ring has anti - slip grooves.

[0021] The working principle and beneficial effects of the present utility model are as follows: The first insert core is arranged inside the base, and the first insert core has male pins; the retaining ring is arranged on the injection-molded elastomer and is located at one end of the injection-molded elastomer facing the base; the inner end of the outer shell passes through the retaining ring and is connected to the injection-molded elastomer, the outer end of the outer shell is sleeved around the periphery of the base, there is a limiting boss on the outer wall of the outer shell, and the end face of the retaining ring away from the injection-molded elastomer contacts the limiting boss; the second insert core is arranged inside the outer shell, the second insert core has female pins, and the female pins are inserted into the male pins; the lock nut is sleeved around the periphery of the outer shell, there is a limiting ring on the inner wall of the lock nut facing the retaining ring, the limiting ring is sleeved around the periphery of the retaining ring and is clamped with the limiting boss, and the other end of the lock nut is threadedly connected to the base.

[0022] The base is the basic part of the connector, usually made of metal materials and having good mechanical strength. The male pins and female pins are usually made of metal materials with good electrical conductivity and are subjected to anti-corrosion treatment. The injection-molded elastomer plays a sealing role to prevent moisture and dust from entering the inside of the connector. The retaining ring is used to limit the position of the outer shell. The outer shell is usually made of metal or high-strength engineering plastics and has good corrosion resistance and mechanical strength. The lock nut is used for the connection between the outer shell and the base to ensure that the connector will not loosen easily during use. When the second insert core is docked with the first insert core, the female pins and male pins are connected to form an electrical connection. The combined design of the retaining ring, limiting boss and limiting ring makes the connection between the components more compact and stable. The clamping of the limiting ring and the limiting boss, as well as the threaded connection between the lock nut and the base, provide double fixation for the whole structure, effectively preventing the components from accidentally loosening during use and ensuring that the male pins and female pins always maintain a good inserted state. The inner end of the outer shell is connected to the injection-molded elastomer, and the outer end is sleeved around the periphery of the base. This design can play a buffering and protecting role for the internal insert core to a certain extent, reduce the influence of external vibration and impact on the insert core connection, and further improve the connection stability. The contact between the retaining ring and the limiting boss further enhances the sealing effect. The threaded connection between the lock nut and the base is convenient for installation and disassembly, and also helps to enhance the overall sealing performance. Each component is nested and matched with each other, making the whole structure design compact, with a relatively small overall volume, occupying less space, which can reduce costs and better meet the use requirements. Brief Description of the Drawings

[0023] The following will further illustrate the above characteristics, technical features, advantages and their implementation manners of the present utility model in a clear and easy-to-understand manner in combination with the drawings in the preferred embodiments.

[0024] Figure 1 It is a schematic diagram of the internal structure in one direction of the present utility model.

[0025] Figure 2 It is a schematic diagram of each parameter in the present utility model.

[0026] Figure 3 Schematic diagram of the internal structure of the present utility model in another direction.

[0027] Figure 4 Schematic diagram of the external structure of the present utility model in one direction.

[0028] Figure 5 Schematic diagram of the external structure of the present utility model in another direction.

[0029] Figure 6 Schematic diagram of the connection structure of two anti - detachment rings in the present utility model.

[0030] In the figure: 1. Base, 1 - 1. First tube body, 1 - 2. Second tube body, 1 - 3. Third tube body, 2. First core, 3. Injection - molded elastomer, 4. Retaining ring, 5. Outer shell, 6. Second core, 7. Lock nut, 8. Male pin, 9. Limiting boss, 10. Female pin, 11. Limiting ring, 12. Chute, 13. Anti - detachment ring, 14. First sealing ring, 15. First receiving groove, 16. Connecting sleeve, 17. Second receiving groove, 18. Second sealing ring, 19. Limiting ring, 20. Anti - slip groove. Detailed implementation manners

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will describe the specific implementation manners of the present utility model with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings and other implementation manners can also be obtained.

[0032] For the sake of simplicity of the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, for the sake of simplicity and easy understanding of the drawings, in some figures, for components with the same structure or function, only one of them is schematically shown, or only one of them is marked. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0033] In this article, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0034] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0035] Example, see Figure 1 , Figure 2 and Figure 3 , which is an embodiment of the utility model, proposes an aviation plug watertight connector, including a base 1, a first plug core 2, an injection molded elastic body 3, a retaining ring 4, a shell 5, a second plug core 6, and a lock cap 7. The first plug core 2 is arranged inside the base 1, and the first plug core 2 has a male pin 8; the retaining ring 4 is arranged on the injection molded elastic body 3 and is located at one end of the injection molded elastic body 3 facing the base 1; the inner end of the shell 5 passes through the retaining ring 4 and is connected to the injection molded elastic body 3, and the outer end of the shell 5 is sleeved on the outer end of the base 1 The outer wall of the shell 5 is provided with a limiting boss 9, and the end face of the retaining ring 4 away from the injection-molded elastomer 3 is in contact with the limiting boss 9; the second plug core 6 is arranged inside the shell 5, and the second plug core 6 is provided with a female needle 10, and the female needle 10 is plugged with the male needle 8; the locking cap 7 is sleeved on the outer periphery of the shell 5, and the inner wall of the locking cap 7 facing the end of the retaining ring 4 is provided with a limiting convex ring 11, the limiting convex ring 11 is sleeved on the outer periphery of the retaining ring 4, and is clamped with the limiting boss 9, and the other end of the locking cap 7 is threadedly connected to the base 1.

[0036] In this embodiment, the base 1 is the basic part of the connector, which is usually made of metal material and has good mechanical strength. The male pin 8 and the female pin 10 are usually made of metal material with good electrical conductivity and are treated with corrosion resistance. The injection molded elastomer 3 plays a sealing role to prevent moisture and dust from entering the interior of the connector. The retaining ring 4 is used to limit the position of the shell 5. The shell 5 is usually made of metal or high-strength engineering plastics, with good corrosion resistance and mechanical strength. The locking cap 7 is used to connect the shell 5 with the base 1 to ensure that the connector will not loosen easily during use. When the second plug 6 is docked with the first plug 2, the female pin 10 is connected to the male pin 8 to form an electrical connection. The matching design of the retaining ring 4, the limiting boss 9 and the limiting convex ring 11 makes the connection between the components tighter and more stable. The limiting convex ring 11 is clamped with the limiting boss 9, and the locking cap 7 is threadedly connected with the base 1, which provides double fixation for the entire structure, effectively preventing the accidental loosening of the components during use, and ensuring that the male pin 8 and the female pin 10 always maintain a good plug-in state. The inner end of the housing 5 is connected to the injection-molded elastomer 3, and the outer end is sleeved on the periphery of the base 1. This design can buffer and protect the internal plug to a certain extent, reduce the impact of external vibration and impact on the plug connection, and further improve the stability of the connection. The contact between the retaining ring 4 and the limiting boss 9 further enhances the sealing effect. The locking cap 7 is threadedly connected to the base 1, which is convenient and quick to install and disassemble, and also helps to enhance the overall sealing performance. The various components are nested and matched with each other, making the entire structure compact, the overall volume small, and occupying a small space, which can reduce costs and better meet usage requirements.

[0037] The number of male pins 8 and female pins 10 is 8 - 18, and the appropriate number of male pins 8 and female pins 10 can be selected according to actual needs. It has strong compatibility, can be inserted and unplugged in shallow water, has a short production cycle, is the standard pin arrangement of the main members of wet pluggable connectors, occupies less space, provides a more compact signal transmission, has all the characteristics of wet pluggable connectors, and can be carried out in any environmental climate. It can be applied to defense systems and equipment, remotely operated vehicle (ROV) systems, marine systems, equipment and instrument solutions, underwater cameras, video and lighting systems, submarine cables and seismic systems, slip ring assemblies, etc.

[0038] Furthermore, as Figure 1 、 Figure 2 and Figure 3 show, the outer wall of the retaining ring 4 towards one end of the base 1 has an annular sliding groove 12, the limiting convex ring 11 is slidably connected to the sliding groove 12, the length of the sliding groove 12 along the axial direction of the retaining ring 4 is h, the thickness of the limiting convex ring 11 is h1, and the length of the lock nut 7 threadedly connected to the base 1 is h2, where h ≥ h1 + h2. Rotating the base 1 can separate the base 1 from the lock nut 9, and rotating the lock nut 7 to move the lock nut 7 towards the injection molded elastomer 3 can also separate the base 1 from the lock nut 9, making the disassembly simpler and more convenient. During the process of threadedly connecting the lock nut 7 to the base 1, the sliding groove 12 can play a guiding role, making the installation of the lock nut 7 smoother and more accurate, and reducing the installation difficulty. h ≥ h1 + h2 ensures that there is sufficient space margin when the lock nut 7 is threadedly connected to the base 1 and the limiting convex ring 11 moves in the sliding groove 12, avoiding loose connection or interference due to size mismatch.

[0039] Furthermore, as Figure 1 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 show, it further includes anti - detachment rings 13. The number of anti - detachment rings 13 is at least two. All the anti - detachment rings 13 are arranged circumferentially around the retaining ring 4 and are all located within the sliding groove 12, and the adjacent two anti - detachment rings 13 are hook - connected. The anti - detachment rings 13 can be used to improve the sealing effect between the retaining ring 4 and the housing 5, effectively preventing impurities such as dust and moisture from the outside from entering the connector interior, and at the same time can prevent the lock nut 7 from loosening or falling off due to external factors and causing internal water short - circuit. As Figure 6 shows, the number of semi - circular anti - detachment rings 13 is preferably two. The two ends of one anti - detachment ring 13 are bent into hooks, and the two ends of the other anti - detachment ring 13 are respectively hung on the corresponding hooks, with firm and reliable connection, convenient and fast disassembly and assembly, saving time and effort.

[0040] Furthermore, as Figure 1 and Figure 3As shown, the base 1 includes a first tube body 1-1, a second tube body 1-2, and a third tube body 1-3 that are connected in sequence. The outer diameters of the first tube body 1-1, the second tube body 1-2, and the third tube body 1-3 decrease in sequence. The outer end of the outer shell 5 is sleeved around the third tube body 1-3. The outer diameter of the outer end of the outer shell 5 is equal to the outer diameter of the second tube body 1-2. The end face of the outer end of the outer shell 5 contacts the end face of the second tube body 1-2. The lock nut 7 is threadedly connected to the outer wall of the second tube body 1-2. The outer diameter of the base 1 is less than or equal to the outer diameter of the lock nut 7. This stepped design can further improve the compactness and rationality of the structure. The first tube body 1-1, the second tube body 1-2, and the third tube body 1-3 with different outer diameters can provide accurate positioning and support for the outer shell 5 and the lock nut 7, facilitating assembly and better ensuring the stability of the connection. The tight fit between the outer shell 5 and the base 1 can reduce the gap and improve the sealing performance. The threaded connection makes the connection between the lock nut 7 and the base 1 more firm and not easy to loosen. The outer diameter of the base 1 being less than or equal to the outer diameter of the lock nut 7 makes the appearance of the entire connector more regular, facilitating installation and use, and the lock nut 7 can provide better protection for the base 1 and the internal components.

[0041] Further, as Figure 1 and Figure 3 shown, it further includes a first sealing ring 14. The first sealing ring 14 is arranged between the base 1 and the outer shell 5. Using the first sealing ring 14 can further enhance the sealing performance between the base 1 and the outer shell 5 and prevent external impurities from entering the interior of the connector. The sealing ring can also play a buffering role, reducing the friction and vibration between the outer shell 5 and the base 1 and improving the stability of the connection.

[0042] Further, as Figure 1 and Figure 3 shown, the outer wall of the base 1 has a first receiving groove 15. The first sealing ring 14 is arranged at the first receiving groove 15. The first receiving groove 15 can provide a fixed installation position for the first sealing ring 14, enabling the first sealing ring 14 to better fit with the base 1 and the outer shell 5, ensuring that the first sealing ring 14 will not shift or fall off during use, and can guarantee the stability of the sealing effect and improve the sealing performance.

[0043] Further, as Figure 1 、 Figure 3 、 Figure 4 and Figure 5 shown, it further includes a connecting sleeve 16. The connecting sleeve 16 is arranged on the base 1 and is located at the end of the base 1 away from the outer shell 5. The connecting sleeve 16 has an external thread. The connecting sleeve 16 can provide a convenient connection method for the connector. The threaded connection is firm and reliable, facilitating installation and disassembly, and can be quickly connected to other devices or components, improving the versatility and applicability of the connector.

[0044] Further, asFigure 1 , Figure 3 , Figure 4 and Figure 5 As shown in Figure 1 , Figure 3 , Figure 4 and Figure 5 , the outer diameter of the connecting sleeve 16 is smaller than that of the base 1. There is a second receiving groove 17 on the end face of the base 1 near the connecting sleeve 16. The second receiving groove 17 is located outside the connecting sleeve 16. A second sealing ring 18 is further included, and the second sealing ring 18 is arranged at the second receiving groove 17. A stepped structure is formed between the connecting sleeve 16 and the base 1, which is convenient for installing and positioning the second sealing ring 18. The second sealing ring 18 can further enhance the sealing performance of the connector at the connection end and prevent external impurities from entering the interior from the connection part.

[0045] Furthermore, as Figure 4 and Figure 5 shown, there are raised limiting rings 19 on the outer wall of the lock cap 7. The number of the limiting rings 19 is at least two, and all the limiting rings 19 are arranged along the axial direction of the lock cap 7. The limiting rings 19 can provide better gripping force when installing and removing the lock cap 7, which is convenient for operation. Multiple limiting rings 19 can increase the friction force, making the rotation of the lock cap 7 more stable and not easy to slip.

[0046] Furthermore, as Figure 4 and Figure 5 shown, there are anti-slip grooves 20 on the outer wall of the limiting ring 19. The anti-slip grooves 20 can be used to improve the anti-slip performance of the limiting ring 19. Even when the hand is wet or has oil stains, the lock cap 7 can be easily rotated for installation and removal. The anti-slip grooves 20 can increase the contact area between the finger and the limiting ring 19, making the operation more comfortable and safe.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered by the scope of the claims of the present invention.

Claims

1. Aerial plug watertight connector, characterized by: include, Base (1), A first plug core (2), the first plug core (2) being arranged inside the base (1), and the first plug core (2) having a male pin (8); Injection molded elastomers (3), a retaining ring (4), the retaining ring (4) being arranged on the injection-molded elastic body (3) and located at one end of the injection-molded elastic body (3) facing the base (1); An outer shell (5), wherein the inner end of the outer shell (5) passes through the retaining ring (4) and is connected to the injection-molded elastomer (3), the outer end of the outer shell (5) is sleeved on the periphery of the base (1), a limiting boss (9) is provided on the outer wall of the outer shell (5), and the end surface of the retaining ring (4) away from the injection-molded elastomer (3) contacts the limiting boss (9); A second plug core (6), the second plug core (6) being arranged inside the housing (5), the second plug core (6) having a female pin (10), the female pin (10) being plugged into the male pin (8); A locking cap (7), the locking cap (7) being sleeved on the outer periphery of the housing (5), the inner wall of the locking cap (7) facing one end of the retaining ring (4) having a limiting convex ring (11), the limiting convex ring (11) being sleeved on the outer periphery of the retaining ring (4) and being engaged with the limiting boss (9), the other end of the locking cap (7) being threadedly connected to the base (1).

2. The aviation plug watertight connector according to claim 1, characterized in that: The outer wall of the retaining ring (4) at one end facing the base (1) is provided with an annular sliding groove (12), the limiting convex ring (11) is slidably connected to the sliding groove (12), the axial length of the sliding groove (12) along the retaining ring (4) is h, the thickness of the limiting convex ring (11) is h1, and the length of the threaded connection between the locking cap (7) and the base (1) is h2, where h≥h1+h2.

3. The aviation plug watertight connector according to claim 2, characterized in that: It also includes an anti-slip ring (13), the number of the anti-slip rings (13) is at least two, all of the anti-slip rings (13) are arranged along the circumferential direction on the periphery of the retaining ring (4), and are all located in the slide groove (12), and two adjacent anti-slip rings (13) are hooked and connected.

4. The aviation plug watertight connector according to claim 1, characterized in that: The base (1) comprises a first tube body (1-1), a second tube body (1-2) and a third tube body (1-3) which are connected in sequence, the outer diameters of the first tube body (1-1), the second tube body (1-2) and the third tube body (1-3) being successively reduced, the outer end of the outer shell (5) being sleeved on the outer periphery of the third tube body (1-3), the outer diameter of the outer end of the outer shell (5) being equal to the outer diameter of the second tube body (1-2), the end surface of the outer end of the outer shell (5) being in contact with the end surface of the second tube body (1-2), the locking cap (7) being threadedly connected to the outer wall of the second tube body (1-2), and the outer diameter of the base (1) being less than or equal to the outer diameter of the locking cap (7).

5. The aviation plug watertight connector according to claim 1, characterized in that: It also comprises a first sealing ring (14), wherein the first sealing ring (14) is arranged between the base (1) and the housing (5).

6. The aviation plug watertight connector according to claim 5, characterized in that: A first accommodating groove (15) is provided on the outer wall of the base (1), and the first sealing ring (14) is arranged at the first accommodating groove (15).

7. The aviation plug watertight connector according to claim 1, characterized in that: It also comprises a connecting sleeve (16), the connecting sleeve (16) being arranged on the base (1) and located at an end of the base (1) away from the outer shell (5), the connecting sleeve (16) having an external thread.

8. The aviation plug watertight connector according to claim 7, characterized in that: The outer diameter of the connecting sleeve (16) is smaller than the outer diameter of the base (1); the base (1) has a second receiving groove (17) on an end surface close to one end of the connecting sleeve (16); the second receiving groove (17) is located outside the connecting sleeve (16); and the base (1) also includes a second sealing ring (18); the second sealing ring (18) is arranged at the second receiving groove (17).

9. The aviation plug watertight connector according to claim 1, characterized in that: The outer wall of the locking cap (7) is provided with a protruding limiting ring (19), the number of the limiting rings (19) is at least two, and all the limiting rings (19) are arranged along the axial direction of the locking cap (7).

10. The aviation plug watertight connector according to claim 9, characterized in that: The outer wall of the limiting ring (19) is provided with an anti-slip groove (20).

Images