Tail injection molding type plug
By using a tail-injection molded plug design, and employing a corrugated spring buffer connector cap and insulator limiting, the problems of RJ45 head damage and metal component displacement are solved, thus improving the service life of aviation plugs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LINYI YITONG ELECTRONICS
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-24
AI Technical Summary
The crystal heads of existing aviation connectors are prone to damage, and the metal parts are easily displaced during frequent plugging and unplugging, which reduces their service life.
A tail-injection molded plug was designed, which uses a corrugated spring buffer connector cap, combined with an insulator and an insulator cover plate to limit and fix the metal parts, so as to avoid excessive tightness or excessive insertion and removal.
It effectively protects the crystal head from damage and extends the plug's lifespan by limiting and fixing the metal parts.
Smart Images

Figure CN224164442U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aviation plug technology, specifically a tail-type injection molded plug. Background Technology
[0002] Aviation connectors (also known as aviation plugs) are electrical connection components originating from the military industry. They are widely used in fields with high reliability requirements such as aerospace, industrial automation, and military equipment. Aviation connectors are electromechanical components used to connect or disconnect circuits. They achieve circuit continuity through insertion and disconnection. Their design emphasizes waterproof, dustproof, and vibration-resistant characteristics to ensure stable transmission in extreme environments. Aviation network cable connectors are used for connecting network cables. The connectors are equipped with RJ45 connectors for connecting network cables. These RJ45 connectors are relatively fragile. Over-tightening when connecting them to the socket using the connector cap can damage the RJ45 connectors. Furthermore, existing aviation connectors using injection molding fix various metal parts by direct injection molding. Frequent or excessive insertion and removal using this method can cause displacement of the metal parts, reducing the service life of the aviation connector. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a tail-injection molded plug to address the shortcomings of the prior art, thereby solving at least one of the aforementioned technical problems.
[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: A tail-injection molded plug includes a cable, a transition cover, an insulator, an insulator cover plate, a sealing cover, a crystal head, a connecting cap, and an injection molded body. The cable includes a network cable. The transition cover is tubular. A first limiting block is provided on the inner side of the right end of the transition cover. An insulator is installed inside the transition cover. A first limiting groove is provided on the right end of the insulator. The first limiting groove is correspondingly provided with the first limiting block. An installation groove is provided in the middle of the insulator. A crystal head is installed in the installation groove. A second limiting block is provided on the right end of the installation groove. A fifth limiting block is provided on the crystal head. The fifth limiting block is correspondingly provided with the second limiting block. The inner side of the transition cover... An insulator cover plate is installed in conjunction with the insulator. The insulator cover plate mates with the insulator. A wire hole is provided in the middle of the insulator cover plate. The network cable passes through the wire hole and connects to the crystal head. A tubular sealing cover is threadedly connected to the left side of the transition cover. The right end of the sealing cover is correspondingly set with the insulator cover plate. One side of the sealing cover and the transition cover, including one end of the cable, is set inside the injection molded body. A connecting cap is fitted on the outside of the transition cover. A seventh limiting block is provided on the outside of the right end of the transition cover. The seventh limiting block mates with the inside of the transition cover. A sixth limiting block is provided inside the left end of the connecting cap. The seventh limiting block is correspondingly set with the sixth limiting block. A corrugated spring is provided between the seventh limiting block and the sixth limiting block.
[0005] Furthermore, the cable includes a power cord, the insulator is provided with a through pin hole, a crimping pin is provided in the pin hole, the insulator cover is provided with a through power cord hole, and the power cord passes through the power cord hole and connects to the crimping pin.
[0006] Furthermore, the left end of the crimping pin is provided with a crimp connector, which is connected to the power cord. The left side of the pin hole is provided with a groove that mates with the crimp connector. The right end of the crimp connector is provided with a fourth limiting block, which mates with the right end of the groove of the crimp connector. The left end of the crimp connector is provided with a third limiting block, which is correspondingly provided with the insulator cover plate.
[0007] Furthermore, the cable includes a shielded wire, which is connected to the sealing cover by screws.
[0008] Furthermore, several connecting shafts are provided inside the right side of the connecting cap.
[0009] Furthermore, a sealing groove is provided at the right end of the transition cover, and a sealing ring is provided in the sealing groove.
[0010] Furthermore, the injection-molded body is in the shape of a straight line.
[0011] Furthermore, the injection-molded body is L-shaped.
[0012] The beneficial effects of this utility model are:
[0013] This device incorporates a corrugated spring to cushion the connector cap, preventing damage to the RJ45 connector caused by excessive tightness when connecting the connector cap to the socket. Furthermore, it includes an insulator and an insulator cover to limit and fix the metal components, preventing displacement of the metal components due to frequent or excessive insertion and removal, thus extending the device's lifespan. Attached Figure Description
[0014] 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.
[0015] Figure 1 This is a schematic diagram of the structure of this utility model.
[0016] Figure 2 This is a schematic diagram of the right-side structure of this utility model.
[0017] Figure 3 This is a schematic diagram of the one-line injection molded body structure of this utility model.
[0018] The attached diagram lists the components represented by each number as follows:
[0019] Cable 1; Network cable 11; Power cord 12; Shielded cable 13; Screw 14; Transition cover 2; First limiting block 21; Sealing groove 22; Sealing ring 23; Seventh limiting block 24; Insulator cover plate 3; Insulator 4; First limiting groove 41; Second limiting block 42; Crimp pin 5; Third limiting block 51; Fourth limiting block 52; Wire seal cover 6; Crystal head 7; Fifth limiting block 71; Connecting cap 8; Sixth limiting block 81; Connecting shaft 82; Corrugated spring 9; Injection molded body 10. Detailed Implementation
[0020] 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.
[0021] 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.
[0022] 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.
[0023] 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.
[0024] 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," not that the structure must be completely horizontal, but can be slightly tilted.
[0025] 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.
[0026] Example 1: See Figures 1 to 3This is a schematic diagram of the various structures of this utility model, including a cable 1, a transition cover 2, an insulator 4, an insulator cover plate 3, a wire sealing cover 6, a crystal head 7, a connecting cap 8, and an injection molded body 10. The cable 1 includes a network cable 11, which is wrapped by a sheath. The transition cover 2 is tubular, and a first limiting block 21 is provided on the inner side of the right end of the transition cover 2. The insulator 4, which is made of rigid insulating material, is installed inside the transition cover 2. A first limiting groove 41 is provided on the right end of the insulator 4, and the first limiting groove 41 is correspondingly provided with the first limiting block 21. The transition cover 2 is provided with... The first limiting block 21 cooperates with the first limiting groove 41 to limit the insulator 4. A mounting groove is provided in the middle of the insulator 4, and a crystal head 7 is installed in the mounting groove. A second limiting block 42 is provided at the right end of the mounting groove. A fifth limiting block 71 is provided on the crystal head 7. The fifth limiting block 71 is correspondingly positioned to the second limiting block 42, and cooperates to fix the crystal head 7. An insulator cover plate 3 is installed inside the transition cover 2. The insulator cover plate 3 cooperates with the insulator 4. A wire hole is provided in the middle of the insulator cover plate 3, and the insulator cover plate 3 cooperates to fix the insulator 4. The limiting RJ45 connector 7 is used, and the network cable 11 passes through the through hole and connects to the RJ45 connector 7. After stripping the insulation, the network cable 11 passes through the through hole and connects to the RJ45 connector 7. A tubular sealing cover 6 is threadedly connected to the left side of the transition cover 2. The right end of the sealing cover 6 is correspondingly set with the insulator cover plate 3. The sealing cover 6 cooperates to compress and fix the insulator 4 and the insulator cover plate 3. One side of the sealing cover 6 and the transition cover 2, including one end of the cable 1, is set inside the injection molded body 10. During injection molding, the sealing cover 6 is covered by the injection mold. A connecting cap 8 is fitted on the outside of the transition cover 2 for fixed connection with the aviation socket. A seventh limiting block 24 is provided on the outer right side of the transition cover 2. The seventh limiting block 24 cooperates with the inner side of the transition cover 2. A sixth limiting block 81 is provided on the inner left side of the connecting cap 8. The seventh limiting block 24 and the sixth limiting block 81 are correspondingly set to limit the connecting cap 8 and prevent the connecting cap 8 from coming off. A corrugated spring 9 is provided between the seventh limiting block 24 and the sixth limiting block 81. When tightening the connecting cap 8, the corrugated spring 9 serves as a buffer. First, the corrugated spring 9 provides pressure to prevent the connecting cap 8 from loosening. Second, it prevents the crystal cap from being damaged by over-tightening.
[0027] Specifically, the cable 1 includes a power cord 12, an insulator 4 with a through-hole for a crimping pin 5 inside the through-hole, and a through-hole for the power cord 12 on the insulator cover plate 3. The power cord 12 passes through the through-hole and connects to the crimping pin 5. When power is required, a power cord 12 is added inside the cable 1 and electrically connected to the socket through the crimping pin 5.
[0028] Specifically, the left end of the crimping pin 5 is provided with a crimp connector, which is connected to the power cord 12. The left side of the pin hole is provided with a groove that mates with the crimp connector. The right end of the crimp connector is provided with a fourth limiting block 52, which mates with the right end of the groove of the crimp connector. The left end of the crimp connector is provided with a third limiting block 51, which is correspondingly provided with the insulator cover plate 3. The crimping pin 5 is fixed by the insulator 4 and the insulator cover plate 3 through the setting of the limiting blocks.
[0029] Specifically, cable 1 includes a shield 13, which is connected to the sealing cover 6 by screws 14. When the shield 13 is needed, it is added inside cable 1. The sealing cover 6, transition cover 2, and connecting cap 8 are all made of conductive material.
[0030] Specifically, the right side of the connector 8 has several connecting shafts 82 inside. The aviation socket has a spiral groove that mates with the connecting shafts 82, which allows for a faster connection compared to threads. By turning the connector 8, the connector 8 is screwed into the groove of the aviation socket to achieve the connection and fixation of the connector 8.
[0031] Specifically, a sealing groove 22 is provided at the right end of the transition cover 2, and a sealing ring 23 is provided inside the sealing groove 22. The sealing ring 23 cooperates with the head of the aviation socket to form a seal.
[0032] Specifically, the injection molded body 10 is in the shape of a straight line, and the injection molded body 10 is cast into a straight line shape as needed.
[0033] Specifically, the injection molded body 10 is L-shaped, and the injection molded body 10 is cast into an L-shape as needed.
[0034] When assembling this utility model, the corrugated spring 9 and the connecting cap 8 are sequentially fitted onto the transition cover 2. The corrugated spring 9 is positioned between the sixth limiting block 81 and the seventh limiting block 24. The network cable 11 is passed through the wire hole in the insulator cover plate 3. The crystal head 7 is connected to the network cable 11. The crystal head 7 is fitted into the mounting groove in the middle of the insulator 4. A groove is provided above the mounting groove to engage with the crystal head 7. The end of the crystal head 7 is passed through. The fifth limiting block 71 and the second limiting block 42 are engaged. The power cable 12 is passed through the power cable 12 hole in the insulator cover plate 3. The crimping pin 5 is fitted into the pin hole and the insulator cover plate 3 is installed. The insulator cover plate 3 and the insulator 4 limit the crimping pin 5 and the crystal head 7. The sealing cover 6 is connected to the transition cover 2 by threads. The sealing cover 6 and the transition cover 2 cooperate to press and fix the insulator 4 and the insulator cover plate 3. The side of the sealing cover 6 is provided with screw holes. The shielding wire 13 is connected to the sealing cover 6 by screws 14. The sealing ring 23 is installed in the sealing groove 22. The cable 1 is bent into an L shape and the left side of the transition cover 2 is injection molded through an L-shaped mold. The injection molded body 10 is L-shaped.
[0035] The cable 1 is straightened and injected into the left side of the transition cover 2 through a straight mold. The injection molded body 10 is straight.
[0036] 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.
[0037] 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 tail injection plug, characterized by: The system includes a cable (1), a transition cover (2), an insulator (4), an insulator cover plate (3), a wire seal (6), a crystal head (7), a connector cap (8), and an injection molded body (10). The cable (1) includes a network cable (11). The transition cover (2) is tubular. A first limiting block (21) is provided on the inner side of the right end of the transition cover (2). An insulator (4) is installed inside the transition cover (2). A first limiting groove (41) is provided on the right end of the insulator (4). The first limiting groove (41) is corresponding to the first limiting block (21). An installation groove is provided in the middle of the insulator (4). A crystal head (7) is installed in the installation groove. A second limiting block (42) is provided on the right end of the installation groove. A fifth limiting block (71) is provided on the crystal head (7). The fifth limiting block (71) is corresponding to the second limiting block (42). An insulator cover plate (3) is installed inside the transition cover (2). The insulator cover plate (3) cooperates with the insulator (4). A wire hole is provided in the middle of the insulator cover plate (3). The network cable (11) passes through the wire hole and connects to the crystal head (7). A tubular sealing cover (6) is threadedly connected to the left side of the transition cover (2). The right end of the sealing cover (6) is correspondingly provided with the insulator cover plate (3). One side of the sealing cover (6) and the transition cover (2) includes one end of the cable (1) located inside the injection molded body (10). A connecting cap (8) is fitted on the outer side of the transition cover (2). A seventh limiting block (24) is provided on the outer right side of the transition cover (2). The seventh limiting block (24) cooperates with the inner side of the transition cover (2). A sixth limiting block (81) is provided inside the left side of the connecting cap (8). The seventh limiting block (24) and the sixth limiting block (81) are correspondingly arranged. A corrugated spring (9) is provided between the seventh limiting block (24) and the sixth limiting block (81).
2. A tail injection plug according to claim 1, wherein: The cable (1) includes a power cord (12), the insulator (4) is provided with a through pin hole, a crimping pin (5) is provided in the pin hole, the insulator cover plate (3) is provided with a through power cord (12) hole, and the power cord (12) passes through the power cord (12) hole and connects to the crimping pin (5).
3. A tail injection plug according to claim 2, wherein: The left end of the crimping pin (5) is provided with a crimp connector, which is connected to the power line (12). The left side of the pin hole is provided with a groove that mates with the crimp connector. The right end of the crimp connector is provided with a fourth limiting block (52), which mates with the right end of the groove of the crimp connector. The left end of the crimp connector is provided with a third limiting block (51), which corresponds to the insulating cover plate (3).
4. The tail molded plug of claim 1 wherein: The cable (1) includes a shield (13), which is connected to the wire seal (6) by a screw (14).
5. The tail molded plug of claim 1 wherein: The right side interior of the connecting cap (8) is provided with several connecting shafts (82).
6. The tail molded plug of claim 1 wherein: The right end of the transition cover (2) is provided with a sealing groove (22), and a sealing ring (23) is provided in the sealing groove (22).
7. The tail molded plug of claim 1 wherein: The injection molded body (10) is a letter-shaped.
8. The tail molded plug of claim 1 wherein: The injection molded body (10) is L-shaped.