Quick-assembly 90-degree waterproof elbow connector

Abstract

The present application relates to the technical field of electrical connectors, and in particular to a quick-assembly 90-degree waterproof elbow connector, comprising a first hollow housing and a second hollow housing. An insulating housing is provided inside the first hollow housing, and several terminals penetrate the interior of the insulating housing. The first hollow housing is provided with a protrusion, and the second hollow housing is provided with an engagement slot, the engagement slot comprising an advancing groove and a rotation clearance groove; the protrusion moves along the advancing groove and enters the rotation clearance groove, thereby realizing preliminary connection and positioning of the first hollow housing and the second hollow housing. The first hollow housing is provided with a locking slot, and the second hollow housing is provided with a locking fastener assembly; by means of the cooperation of the locking slot and the locking fastener assembly, when the first hollow housing is connected to the second hollow housing, rotation of the first hollow housing relative to the second hollow housing is restricted. The present application has the technical effects of simplifying the assembly process and improving the waterproof and operational performance of the connector.

Description

A quick-assembly 90-degree elbow waterproof connector Technical Field

[0001] This application relates to the field of electrical connector technology, and in particular to a 90-degree bend waterproof connector that can be quickly assembled. Background Technology

[0002] In the field of mechanical connectors, waterproof connectors are highly valued for their ability to ensure the normal operation of electrical equipment in humid or underwater environments. Waterproof connectors are widely used in various industrial equipment, marine exploration equipment, and outdoor electronic devices, not only improving equipment reliability but also facilitating maintenance. In recent years, with the continuous improvement of industrial automation, the demand for waterproof connectors has continued to grow, and higher requirements have been placed on the connection speed and ease of operation. Rapid assembly and reliable waterproof performance have become the focus of market attention.

[0003] Currently, common designs for 90-degree elbow waterproof connectors mainly include threaded connections and snap-fit ​​connections. While threaded connections offer good waterproof sealing, they require rotating the connector during assembly, resulting in lower assembly efficiency. Snap-fit ​​connections improve assembly efficiency, but improper design can compromise waterproof performance. Furthermore, snap-fit ​​connections may loosen over time due to aging of the elastic components, further affecting the connector's stability.

[0004] However, existing snap-fit ​​connectors struggle to strike a good balance between assembly speed and waterproofing performance. In particular, ensuring structural stability and waterproofing during rapid assembly remains a critical issue that urgently needs to be addressed.

[0005] Therefore, based on the above problems, the existing technology needs to be improved. Summary of the Invention

[0006] In order to overcome the above-mentioned technical problems, this application provides a 90-degree elbow waterproof connector that can be quickly assembled.

[0007] The above-mentioned technical objective of this application is achieved through the following quick-assembly 90-degree elbow waterproof connector, which includes a first hollow shell and a second hollow shell. An insulating shell is disposed inside the first hollow shell, and several terminals are disposed within the insulating shell. A protrusion is provided on the first hollow shell, and a slot is provided on the second hollow shell. The slot includes a forward groove and a rotation clearance groove. The protrusion moves along the forward groove and enters the rotation clearance groove, thereby achieving initial connection and positioning between the first hollow shell and the second hollow shell. A locking groove is provided on the first hollow shell, and a locking assembly is provided on the second hollow shell. Through the cooperation of the locking groove and the locking assembly, after the first hollow shell is connected to the second hollow shell, the rotation of the first hollow shell relative to the second hollow shell is restricted.

[0008] By adopting the above technical solution, and by setting an insulating shell inside the first hollow shell and inserting several terminals, the stability and safety of the electrical connection are ensured. The protrusions on the first hollow shell cooperate with the slots on the second hollow shell. The advancing groove and the rotating clearance groove of the slots allow the two shells to quickly achieve initial connection and positioning, greatly improving assembly efficiency. Simultaneously, the locking groove on the first hollow shell cooperates with the locking assembly on the second hollow shell, effectively restricting the rotation of the first hollow shell relative to the second hollow shell after connection, ensuring the robustness and stability of the connection, thereby improving the reliability of the connector in various operating environments. Especially in applications with high waterproofing requirements, this connector can perform better.

[0009] Optionally, the locking assembly includes a mounting block disposed on the second hollow housing. The mounting block is provided with a mounting groove, and a self-locking snap is embedded in the mounting groove. The self-locking snap is provided with a pin. By sliding the self-locking snap in the mounting groove, the pin can be inserted into or moved away from the locking groove.

[0010] By adopting the above technical solution, the mounting block in the locking assembly is set on the second hollow shell, and the mounting groove of the mounting block provides a stable mounting position for the self-locking snap. The self-locking snap slides within the mounting groove, allowing the pin to be easily inserted into or removed from the locking groove. This design further improves the ease of connector assembly. When connection is required, simply slide the self-locking snap to insert the pin into the locking groove for a quick and secure connection. Disassembly is equally simple. This flexible locking method ensures that the connector can be quickly assembled during use and reliably disassembled and maintained according to actual needs, improving the connector's practicality and applicability.

[0011] Optionally, the mounting block is hollow and has an installation channel. A limiting spring is provided at the channel opening at the end of the installation channel away from the pin. A first elastic element is provided in the installation channel. An installation pin is provided on the self-locking snap fastener. One end of the first elastic element abuts against the limiting spring, and the other end is fitted onto the installation pin and abuts against the self-locking snap fastener. The first elastic element is squeezed or released by the cooperation of the limiting spring and the self-locking snap fastener.

[0012] By adopting the above technical solution, the mounting block is hollow and has an installation channel. A limiting spring is installed at the channel opening, and a first elastic element is installed inside the channel, cooperating with the self-locking snap. When the pin is inserted into the locking groove, the limiting spring and the self-locking snap release the first elastic element. The first elastic element provides elastic force, making the connection of the pin in the locking groove more secure and reliable, effectively preventing accidental loosening and ensuring stable connection of the connector in various environments. When disassembly is required, external force is applied to move the pin, re-pressing the first elastic element, making operation more convenient. This design not only improves the connection strength of the connector but also enhances its flexibility and convenience of use, making the connector more reliable and efficient in practical applications.

[0013] Optionally, the limiting spring is provided with a limiting element, and the self-locking snap is provided with a limiting groove, with the limiting element embedded in the limiting groove.

[0014] By adopting the above technical solution, the limiting element on the limiting spring and the limiting groove on the self-locking snap interlock, effectively limiting the movement range of the self-locking snap during connector use. This ensures more stable and accurate sliding of the self-locking snap within the mounting groove. This helps the pin to accurately insert into or move away from the locking groove, improving the operational precision of connector assembly and disassembly. Simultaneously, this limiting structure also enhances the overall structural stability of the connector, enabling it to maintain a reliable connection under various operating conditions, further improving connector performance and service life.

[0015] Optionally, a rotating shaft is provided on the first hollow outer shell, and a snap fastener is fitted on the rotating shaft. A second elastic element is provided on the first hollow outer shell, and the end of the second elastic element away from the first hollow outer shell abuts against the snap fastener. A buckle is provided on the end of the snap fastener away from the second elastic element. A through hole is provided on the first hollow outer shell, and the buckle passes through the through hole.

[0016] By adopting the above technical solution, the rotating shaft on the first hollow shell allows the snap-fit ​​fastener to rotate flexibly. Under the action of the second elastic element, one end of the snap-fit ​​fastener, fitted onto the rotating shaft, can stably pass through the through-hole on the first hollow shell. This structural design provides a convenient connection method during connector assembly. When connecting with other components, the snap-fit ​​fastener can quickly engage with the corresponding slot or interface, achieving rapid connection and positioning. Simultaneously, the presence of the second elastic element provides a certain degree of elastic cushioning during connection, adapting to different sized connection objects and improving the connector's versatility and compatibility. Furthermore, this design facilitates disassembly by pressing the snap-fit ​​fastener, making operation simple and quick, and improving the connector's ease of use and efficiency.

[0017] Optionally, the insulator shell has a recessed groove, and a gasket is fitted into the groove. The gasket has a stepped structure for fitting the second hollow shell.

[0018] By adopting the above technical solution, the groove provides a stable mounting position for the gasket, ensuring that the gasket will not easily shift during use. The stepped structure on the gasket can interlock with the second hollow shell, which on the one hand enhances the tightness of the connection between the first and second hollow shells, improves waterproof performance, and effectively prevents moisture, dust, and other impurities from entering the connector, protecting the internal electrical components. On the other hand, the stepped structure makes the connection between the two hollow shells more accurate and stable, reducing problems such as loosening and poor contact caused by loose connections, thus improving the reliability and service life of the connector. At the same time, this design also facilitates connector assembly, making the assembly process more efficient and accurate.

[0019] Optionally, the insulator shell has a first fixing groove in the concave ring at one end away from the second hollow shell, and a first waterproof ring is provided inside the first fixing groove.

[0020] By adopting the above technical solution, the first fixing groove provides a stable installation position for the first waterproof ring, preventing it from easily shifting or falling off during use. The first waterproof ring forms a reliable waterproof barrier at this point, effectively preventing external moisture from penetrating the connector's interior after the external device is inserted into the first hollow shell and connected to the terminals, greatly improving the connector's overall waterproof performance. This design allows the connector to operate stably in humid and wet environments, expanding its application scenarios. The excellent waterproof performance protects the internal electrical components from damage due to moisture intrusion, thereby extending the connector's lifespan and improving its reliability and stability.

[0021] Optionally, the insulator shell has a second fixing groove in the inner ring at one end near the second hollow shell, and a second waterproof ring is provided inside the second fixing groove.

[0022] By adopting the above technical solution, the second fixing groove provides a stable installation position for the second waterproof ring, ensuring that it will not easily move during use. The second waterproof ring forms another robust waterproof barrier here, working in conjunction with the first waterproof ring at the other end to effectively prevent moisture from seeping into the connector from two directions. This greatly enhances the connector's waterproof performance, enabling it to operate reliably in various harsh, humid environments, even underwater. Good waterproof protection extends the lifespan of internal electrical components and reduces the risk of failure due to moisture intrusion. At the same time, this dual waterproof design also improves the overall quality and reliability of the connector, making its application in many fields more widespread and reliable.

[0023] Optionally, the insulator shell is provided with a third fixing groove, and a third waterproof ring is provided in the third fixing groove.

[0024] By adopting the above technical solution, the third fixing groove provides a stable installation position for the third waterproof ring. The third waterproof ring is located at the installation position between the first hollow shell and the insulator shell, providing additional waterproof protection for this connection. It effectively prevents moisture from seeping in from the connection between the first hollow shell and the insulator shell, further enhancing the overall waterproof performance of the connector. This multi-layered waterproof design ensures that the connector maintains good sealing performance in various complex environments, preventing damage to internal electrical components due to moisture intrusion. Simultaneously, the presence of the third waterproof ring also improves the structural stability of the connector, making the connection between the first hollow shell and the insulator shell tighter and more reliable, reducing potential problems caused by loosening or gaps. This design enhances the reliability and durability of the connector, enabling it to perform exceptionally well in various application scenarios.

[0025] Optionally, the bottom of the rotation avoidance groove is recessed with an engagement groove for the protrusion to engage, and the rotation avoidance groove 62 is provided with a guide surface.

[0026] By adopting the above technical solution, the protrusion is guided by the guide surface within the rotating clearance groove, allowing it to embed into the fitting groove. The fitting groove provides a clear and stable installation position for the protrusion, enhancing the stability of the connection between the first and second hollow shells. This effectively resists external impacts and vibrations, prevents accidental separation, and ensures a stable connection under various working environments. Simultaneously, it improves the accuracy of connection positioning, helping to increase assembly efficiency, reduce repetitive operations, and guarantee connector performance and quality. Furthermore, it further reduces the gap between the shells, enhancing waterproof performance, preventing moisture, dust, and other impurities from entering the internal electrical components, and extending their service life. Overall, it makes the connector connection structure more complex and reliable, reduces maintenance costs and failure rates, and improves the overall reliability of the connector.

[0027] In summary, this application has at least the following beneficial effects:

[0028] 1. By using the protrusion on the first hollow shell and the slot on the second hollow shell to engage, the first hollow shell and the second hollow shell can be quickly positioned and connected, thus improving the assembly speed of the connector;

[0029] 2. The locking groove and the locking assembly work together to restrict the rotation of the first hollow shell relative to the second hollow shell after the initial connection, thereby improving the structural stability and anti-loosening ability of the connector;

[0030] 3. The multi-layer waterproof ring design inside the insulating shell ensures the connector's waterproof sealing in humid or underwater environments, improving the reliability of electrical equipment operation. Attached Figure Description

[0031] Figure 1 is a structural schematic diagram of a 90-degree elbow waterproof connector that can be quickly assembled;

[0032] Figure 2 is an exploded view of a 90-degree elbow waterproof connector that can be quickly assembled;

[0033] Figure 3 is a schematic diagram of the card slot structure;

[0034] Figure 4 shows the positions of the pin and the lock slot;

[0035] Figure 5 is a schematic diagram of the self-locking snap.

[0036] Reference numerals in the attached figures: 1. First hollow outer shell; 2. Second hollow outer shell; 3. Insulator shell; 4. Terminal; 5. Protrusion; 6. Slot; 61. Forward groove; 62. Rotation clearance groove; 7. Locking groove; 8. Locking assembly; 81. Mounting block; 82. Self-locking snap; 83. Pin; 84. Limiting spring; 85. First elastic element; 86. Limiting element; 9. Mounting slide; 10. Mounting channel; 11. Mounting pin; 12. Limiting slide; 13. Rotating shaft; 14. Plug-in snap; 15. Second elastic element; 16. Snap; 17. Through hole; 18. Groove; 19. Gasket; 20. First fixing groove; 21. First waterproof ring; 22. Second fixing groove; 23. Second waterproof ring; 24. Third fixing groove; 25. Third waterproof ring; 26. Fitting groove. Detailed Implementation

[0037] The present application will be further described in detail below with reference to the accompanying drawings.

[0038] In this embodiment, referring to Figures 1-5, a quick-assembly 90-degree elbow waterproof connector includes a first hollow shell 1 and a second hollow shell. The first hollow shell 1 contains an insulator shell 3, within which several terminals are inserted. The first hollow shell 1 has a protrusion 5, and the second hollow shell 2 has a slot 6, which includes a forward groove 61 and a rotation clearance groove 62. The protrusion 5 enters along the forward groove 61 and then into the rotation clearance groove 62, achieving initial connection and positioning between the first hollow shell 1 and the second hollow shell 2. The first hollow shell 1 has a locking groove 7, and the second hollow shell 2 has a locking assembly 8. Through the cooperation of the locking groove 7 and the locking assembly 8, after the first hollow shell 1 is connected to the second hollow shell 2, rotation of the first hollow shell 1 relative to the second hollow shell 2 is restricted. This design not only speeds up assembly but also ensures good waterproof performance of the connector.

[0039] Specifically, the first hollow outer shell 1 is made of plastic or metal. The first hollow outer shell 1 is hollow and accommodates the insulator shell 3, which houses three terminals 4. The insulator shell 3 can be made of a high-insulation material, such as epoxy resin or polytetrafluoroethylene. The insulator shell 3 has multiple terminal 4 fixing holes for fixing the terminals 4. A protrusion 5 is located on the inner wall of the first hollow outer shell 1, specifically as an outwardly protruding block structure, for engaging with the slots 6 on the second hollow outer shell 2. The protrusion 5 can be made of the same material as the first hollow outer shell 1 or a high-hardness metal material, and the protrusion 5 is integrally formed with the first hollow outer shell 1. Several protrusions 5 are provided, and several slots 6 are provided corresponding to the protrusions 5. Preferably, three protrusions 5 and three slots 6 are provided, with the three protrusions 5 evenly spaced.

[0040] The second hollow outer shell 2 is also made of high-strength material. The slot 6 is located on the outer wall of the second hollow outer shell 2, and is subdivided into a forward groove 61 and a rotation clearance groove 62. The forward groove 61 is the initial path for the protrusion 5 to enter, and its width is equal to or slightly larger than the maximum diameter of the protrusion 5 to ensure smooth entry. The rotation clearance groove 62 is located on one side of the forward groove 61 and is used for the final positioning of the protrusion 5. The specific structure of the forward groove 61 and the rotation clearance groove 62 can be appropriately adjusted according to the design of the protrusion 5. Preferably, the forward groove 61 and the rotation clearance groove 62 are set at a 90-degree angle.

[0041] With this structural design, when the first hollow shell 1 and the second hollow shell 2 are initially connected, the protrusion 5 enters along the forward groove 61. When the protrusion 5 moves to the end of the forward groove 61, the first hollow shell is rotated, causing the protrusion 5 to move into the rotation clearance groove 62. As a result, the first hollow shell cannot detach from the second hollow shell along the extension direction of the forward groove 61, thus achieving the initial connection and positioning.

[0042] A locking groove 7 is provided at a corresponding position on the outer wall of the first hollow outer shell 1 to cooperate with the locking assembly 8. The locking groove 7 can adopt different shapes according to actual design requirements, such as rectangular, spherical or elliptical. The design of the locking groove 7 can accommodate locking assemblies 8 of different shapes and sizes.

[0043] Referring to Figure 2, the locking assembly 8 includes a mounting block 81 fixed to the second hollow housing 2. The mounting block 81 can be of different shapes, such as rectangular, elliptical, or cylindrical, depending on the design of the second hollow housing 2. The mounting block 81 can be made of high-strength engineering plastic or metal. The mounting block 81 is provided with a mounting groove 9 for assembling a self-locking snap 82. The mounting groove can be a straight groove or a groove with curvature, and its specific shape can be flexibly adjusted according to the design of the self-locking snap 82. The self-locking snap 82 is fitted into the mounting groove 9. The self-locking snap 82 is made of a high-toughness material, such as polyamide or thermoplastic polyester. The self-locking snap 82 is provided with a pin 83. By sliding the self-locking snap 82 in the mounting groove 9, the pin 83 can be inserted into or moved away from the locking groove 7 to achieve the final locking function.

[0044] The specific description details the combination logic and effects of all secondary features constituting the locking assembly 8. The mounting block 81, self-locking snap 82, and pin 83 in the locking assembly 8 cooperate to achieve secure locking of the connector. The mounting block 81 fixes the self-locking snap 82 via its mounting groove 9, allowing the self-locking snap 82 to slide freely within the groove. The pin 83 moves with the self-locking snap 82 by being fixed to it. When the self-locking snap 82 slides to the locking groove 7, the pin 83 inserts into the locking groove 7, preventing the protrusion 5 from moving within the rotation avoidance groove 62, ensuring a secure connection between the first hollow outer shell 1 and the second hollow outer shell 2 that cannot be arbitrarily detached.

[0045] The implementation principle of this embodiment is as follows: This embodiment achieves rapid assembly by setting the protrusion 5 and the slot 6, while simultaneously securing and locking it using the locking assembly 8. By designing the protrusion 5 and the slot 6 to specific positions, and by rationally arranging the locking slot 7 and the locking assembly 8, the stability and reliability of the connector during assembly are ensured. Furthermore, through reasonable material selection and structural design, the service life and performance of the connector are further improved, solving the problems of low assembly efficiency and poor waterproof performance existing in the prior art.

[0046] Example 2

[0047] Referring to Figures 3-4, the difference between this embodiment and the above embodiments lies in the further optimization of the specific implementation of the locking assembly 8. Specifically, the mounting block 81 is hollow and has a mounting channel 10. A limiting spring 84, preferably a metal spring, is provided at the end of the mounting channel 10 away from the pin 83. A first elastic element 85, preferably a spring, is provided inside the mounting channel 10. A mounting pin 11 is provided on the self-locking snap 82. One end of the first elastic element 85 abuts against the limiting spring 84, and the other end is fitted onto the mounting pin 11 and abuts against the self-locking snap 82. The limiting spring 84 and the self-locking snap 82 work together to compress or release the first elastic element 85. When the pin 83 is inserted into the locking groove 7, the limiting spring 84 and the mounting pin 11 release the first elastic element 85. The elastic force provided by the first elastic element 85 makes the connection of the pin 83 in the locking groove 7 more stable and reliable, effectively preventing accidental loosening and ensuring the stable connection of the connector in various environments. When disassembly is required, external force is applied to move the pin 83 and re-press the first elastic element 85, so that the pin 83 can spring back and engage into the lock groove 7 to complete the locking without external force, making the operation more convenient.

[0048] Referring to Figure 5, a limiting element 86 is provided on the limiting spring 84, and a limiting groove 12 is provided on the self-locking snap 82. The limiting element 86 is fitted into the limiting groove 12. The limiting element 86 on the limiting spring 84 and the limiting groove 12 on the self-locking snap 82 are fitted together, which can effectively limit the movement range of the self-locking snap 82 during the use of the connector, prevent the self-locking snap 82 from disengaging from the mounting block 81, and ensure that the sliding of the self-locking snap 82 in the mounting groove 9 is more stable and accurate.

[0049] Example 3

[0050] Referring to Figures 2 and 4, the difference between this embodiment and the previous embodiment is that: a rotating shaft 13 is provided on the first hollow outer shell 1, and a snap fastener 14 is fitted on the rotating shaft 13. A second elastic element 15 is provided on the first hollow outer shell 1. The end of the second elastic element 15 away from the first hollow outer shell 1 abuts against the snap fastener 14, and a buckle 16 is provided at the end of the snap fastener 14 away from the second elastic element 15. A through hole 17 is provided on the first hollow outer shell 1, and the buckle 16 passes through the through hole 17. Specifically, the second elastic element 15 is installed at a suitable position on the first hollow outer shell 1, preferably a spring. One end of the second elastic element 15 is firmly connected to the first hollow outer shell 1 to ensure that it will not shift during use. The end of the second elastic element 15 away from the first hollow outer shell 1 tightly abuts against the snap fastener 14, providing elastic support for the snap fastener 14. A buckle 16 is provided at the end of the snap fastener 14 away from the second elastic element 15. The design of the snap fastener 16 should meet the connection requirements, possessing sufficient strength and a suitable shape to allow it to engage with the corresponding connection parts. A through hole 17 is provided on the first hollow outer shell 1 at the position corresponding to the snap fastener 16. The size of the through hole 17 should be slightly larger than the snap fastener 16, allowing the snap fastener 16 to pass smoothly through the through hole 17 and to flexibly extend and retract under the action of the elastic element, thus achieving connection and separation with external devices.

[0051] Example 4

[0052] Referring to Figure 2, this embodiment differs from the previous embodiment in that: a groove 18 is recessed in the insulator shell 3, and a gasket 19 is fitted into the groove 18. The gasket 19 has a stepped structure for fitting the second hollow shell 2. Specifically, during the design and manufacturing process of the insulator shell 3, the groove 18 is formed in the recessed area through precise processing. The size and shape of the groove 18 should be designed according to the size and shape of the gasket 19 to ensure that the gasket 19 can fit tightly into the groove 18 without loosening or falling off. The material of the gasket 19 should have a certain degree of elasticity and wear resistance to meet the requirements of the connector. The gasket 19 is installed into the groove 18 of the insulator shell 3, ensuring that the fit between the gasket 19 and the groove 18 is tight and seamless. A stepped structure is provided on the side of the gasket 19 away from the groove 18. The size and shape of the stepped structure should be designed according to the connection part of the second hollow shell 2 so that the second hollow shell 2 can be accurately fitted into the stepped structure of the gasket 19. When installing the second hollow housing 2, align it with the stepped structure of the gasket 19 and gently press or otherwise use suitable methods to ensure a tight fit with the gasket 19, achieving a stable connection. This design improves the accuracy and stability of the connection, while also enhancing the connector's sealing and waterproof performance.

[0053] Example 5

[0054] Referring to Figure 2, the difference between this embodiment and the previous embodiment lies in the waterproof structure design on the insulator shell 3, including the specific implementation of the first waterproof ring 21, the second waterproof ring 23, and the third waterproof ring 25. A first fixing groove 20 is provided in the concave ring at the end of the insulator shell 3 away from the second hollow shell 2. The first waterproof ring 21 is disposed inside the first fixing groove 20. Preferably, the first fixing groove 20 is located at the connection point between the external device and the insulator shell 3 to prevent water or other substances from entering the connector from the interface where the external device is inserted into the first hollow shell 1. A second fixing groove 22 is provided in the concave ring at the end of the insulator shell 3 near the second hollow shell 2. The second fixing groove 22 is disposed inside the second waterproof ring 23. Preferably, the second fixing groove 22 is located at the connection point between the second hollow shell 2 and the insulator shell 3 to prevent water or other substances from entering the connector from the second hollow shell 2. The insulator shell 3 is provided with a third fixing groove 24, and a third waterproof ring 25 is provided in the third fixing groove 24. The third fixing groove 24 is located between the first fixing groove 20 and the second fixing groove 22, preferably located at the installation connection between the first hollow shell 1 and the insulator shell 3, and is used to supplement the waterproof function. When the first waterproof ring 21 or the second waterproof ring 23 fails, it can still prevent water or other substances from entering the connector.

[0055] The implementation principle of this embodiment is as follows: by adopting a multi-layer waterproof ring structure and using different waterproof rings in combination, the connector is made more stable and reliable in terms of overall waterproof capability.

[0056] Example 6,

[0057] Referring to Figure 3, the difference between this embodiment and the above embodiment is that: the bottom of the rotation clearance groove 62 is recessed with a fitting groove 26 for fitting the protrusion 5, and a guide surface is provided inside the rotation clearance groove 62. Preferably, the fitting groove 26 is provided at the end of the rotation clearance groove 62 away from the forward groove 61. When the protrusion 5 enters the rotation clearance groove 62, it is guided by the guide surface to insert into the fitting groove 26. The fitting groove 26 provides a clear and stable installation position for the protrusion 5, enhancing the stability of the connection between the first hollow shell 1 and the second hollow shell 2, effectively resisting external impacts and vibrations, preventing accidental separation, and ensuring a stable connection in various working environments. The fitting groove 26 works together with the locking assembly 8 to restrict the rotation of the first hollow shell 1 relative to the second hollow shell 2 after the first hollow shell 1 is connected to the second hollow shell 2.

[0058] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A quick-assembly 90-degree elbow waterproof connector, characterized in that, The device includes a first hollow shell (1) and a second hollow shell (2). The first hollow shell (1) has an insulator shell (3) inside, and a plurality of terminals (4) are inserted inside the insulator shell (3). The first hollow shell (1) has a protrusion (5), and the second hollow shell (2) has a slot (6). The slot (6) includes a forward groove (61) and a rotation avoidance groove (62). The protrusion (5) moves along the forward groove (61) and enters the rotation avoidance groove (62), thereby achieving the initial connection and positioning of the first hollow shell (1) and the second hollow shell (2). The first hollow shell (1) has a locking groove (7), and the second hollow shell (2) has a locking assembly (8). Through the cooperation of the locking groove (7) and the locking assembly (8), after the first hollow shell (1) is connected to the second hollow shell (2), the rotation of the first hollow shell (1) relative to the second hollow shell (2) is restricted.

2. The quick-assembly 90-degree elbow waterproof connector according to claim 1, characterized in that, The locking assembly (8) includes a mounting block (81) disposed on the second hollow outer shell (2). The mounting block (81) is provided with a mounting groove (9). A self-locking snap (82) is embedded in the mounting groove (9). A pin (83) is provided on the self-locking snap (82). By sliding the self-locking snap (82) in the mounting groove (9), the pin (83) is inserted into or moved away from the locking groove (7).

3. The quick-assembly 90-degree elbow waterproof connector according to claim 2, characterized in that, The mounting block (81) is hollow and has an mounting channel (10). A limiting spring (84) is provided at the end of the mounting channel (10) away from the pin (83). A first elastic element (85) is provided in the mounting channel (10). An mounting pin (11) is provided on the self-locking snap (82). One end of the first elastic element (85) abuts against the limiting spring (84), and the other end is fitted onto the mounting pin (11) and abuts against the self-locking snap (82). The first elastic element (85) is squeezed or released by the cooperation of the limiting spring (84) and the self-locking snap (82).

4. The quick-assembly 90-degree elbow waterproof connector according to claim 3, characterized in that, The limiting spring (84) is provided with a limiting element (86), and the self-locking snap (82) is provided with a limiting groove (12). The limiting element (86) is fitted into the limiting groove (12).

5. The quick-assembly 90-degree elbow waterproof connector according to claim 3, characterized in that, A pivot (13) is provided on the first hollow shell (1), and a snap fastener (14) is fitted on the pivot (13). A second elastic element (15) is provided on the first hollow shell (1). The end of the second elastic element (15) away from the first hollow shell (1) abuts against the snap fastener (14). A buckle (16) is provided on the end of the snap fastener (14) away from the second elastic element (15). A through hole (17) is provided on the first hollow shell (1), and the buckle (16) passes through the through hole (17).

6. The quick-assembly 90-degree elbow waterproof connector according to claim 1, characterized in that, The insulating shell (3) has a recessed groove (18) and a gasket (19) is fitted inside the groove (18). The gasket (19) has a stepped structure for fitting the second hollow shell (2).

7. The quick-assembly 90-degree elbow waterproof connector according to claim 1, characterized in that, The insulating shell (3) has a first fixing groove (20) in the inner ring at one end away from the second hollow shell (2), and a first waterproof ring (21) is provided inside the first fixing groove (20).

8. The quick-assembly 90-degree elbow waterproof connector according to claim 7, characterized in that, The insulating outer shell (3) has a second fixing groove (22) in the inner ring at one end near the second hollow outer shell (2), and a second waterproof ring (23) is provided inside the second fixing groove (22).

9. The quick-assembly 90-degree elbow waterproof connector according to claim 8, characterized in that, The insulating shell (3) is provided with a third fixing groove (24), and a third waterproof ring (25) is provided in the third fixing groove (24).

10. The quick-assembly 90-degree elbow waterproof connector according to claim 1, characterized in that, The rotating clearance groove (62) has a recessed fitting groove (26) at the bottom for fitting the protrusion (5), and the rotating clearance groove (62) has a guide surface.

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