A waterproof connector structure with a positioning pin

Abstract

The utility model belongs to underwater probe waterproof connector technical field, and disclose a waterproof connector structure with positioning pin, including connector male, connector female, sealing gasket, waterproof gasket, positioning pin, aims at solving existing waterproof connector is not applicable to multichannel and the service life is low and so on problem, adopts the design of plug-in type to realize mechanical connection and electrical conduction, breaks through the limitation of traditional thread screwing type, can densely arrange electric joint to promote the number of channels, shortens assembly time and reduces contact wear. Sealing adopts double protection: sealing gasket forms primary sealing through elastic deformation, waterproof gasket forms secondary protection in combination with cavity air pressure, satisfies the high water pressure sealing demand under deep water. Positioning pin has accurate orientation, overpressure protection and quick dismounting function, through the synergistic effect of multiple structures, the sealing performance, mechanical stability and service life of connector are improved significantly, and it is applicable to high-precision underwater probe multi-parameter acquisition scene.

Description

Technical Field

[0001] This utility model relates to the technical field of waterproof connectors for underwater probes, specifically a waterproof connector structure with a positioning pin. Background Technology

[0002] In fields such as marine exploration, underwater engineering, and hydrological monitoring, underwater probes (such as acoustic probes, pressure sensors, and temperature detectors) are key sensing devices, and their stable operation highly depends on reliable waterproof connection technology. Among them, waterproof connectors, as the core interface between the probe and external equipment (such as data acquisition terminals and power supply modules), must simultaneously meet three core requirements: electrical conductivity, structural sealing, and environmental adaptability. Their performance directly affects the accuracy of the detection data and the service life of the equipment.

[0003] Currently, threaded screw-on connectors are commonly used in the industry for waterproof connections of underwater probes. The design of this type of connector is based on the fundamental principles of mechanical seals. The tight meshing of internal and external threads forms an initial sealing surface, which, when combined with sealing rings (such as O-rings or rubber gaskets), further enhances the waterproofing effect. Its key advantage lies in the inherent sealing redundancy of the threaded structure: during screwing, the axial pressure between the thread teeth causes elastic deformation of the seal, filling tiny gaps. This provides basic waterproofing in low-pressure water environments (such as shallow water areas and short-term immersion scenarios). Furthermore, its simple structural principle and convenient initial assembly make it still widely used in low- to mid-range underwater detection equipment.

[0004] However, as underwater exploration technology develops towards deeper waters, higher precision, and simultaneous acquisition of multiple parameters, the inherent defects of threaded screw-on connectors have gradually become a technical bottleneck, mainly in the following two aspects:

[0005] Firstly, the complexity and cost of electrical connection design remain high. Because threaded screw-type structures rely on relative rotational motion for assembly, their internal electrical contact components (such as pins and contacts) must adapt to this motion characteristic, typically designed as a stepped annular conductive structure. Specifically, multiple sets of conductive contacts need to be arranged in layers along the circumference, with sliding contact on the stepped surfaces ensuring continuous electrical conduction during rotation. When detection requirements involve multi-channel data transmission (such as simultaneously acquiring sonar signals, temperature, pressure, and other parameters), the increase in the number of channels leads to a multiplication of the stepped annular structure's layers. This necessitates not only higher processing precision (such as micron-level concentricity control) to avoid contact interference but also complex insulation designs (such as multi-layered ceramic or special plastic separators) to prevent signal crosstalk. This design increases the number of connector components by more than 30% and extends the processing cycle to 2-3 times that of conventional structures, directly causing production costs to soar. Especially in high-end multi-channel probes, connector costs can account for 20%-35% of the total equipment cost.

[0006] Secondly, the service life is significantly constrained by environmental factors, resulting in insufficient reliability. The unique characteristics of the underwater environment pose severe challenges to the durability of connectors: on the one hand, structural deformation caused by temperature fluctuations can damage sealing performance. Water has a specific heat capacity of approximately 4.2 kJ / (kg・℃), far exceeding that of air (approximately 1.0 kJ / (kg・℃)), leading to a significant temperature difference between underwater and the external environment (such as surface equipment compartments and the atmosphere) (the temperature difference in deep-sea areas can reach 20-30℃). Threaded components (usually made of metal, such as brass or stainless steel) will undergo periodic deformation due to thermal expansion and contraction under repeated temperature differences. After long-term use, the mating clearance of the thread teeth increases, resulting in insufficient compression of the seal and ultimately loss of waterproofing capability. On the other hand, water corrosion accelerates structural failure. Electrolytes such as chloride ions and sulfates in natural water bodies (especially seawater) can cause electrochemical corrosion of the threads of precision threads; simultaneously, suspended particles in the water may become embedded in the thread gaps, causing thread wear during tightening. Data shows that in seawater with a salinity of 3.5%, the average service life of threaded screw-on connectors is only 1,000-1,500 hours, far below the design life requirement of more than 5,000 hours for underwater equipment. Frequent replacements not only increase maintenance costs, but may also damage the core components of the probe due to misoperation during disassembly and assembly.

[0007] In summary, while existing threaded connectors can meet basic waterproofing requirements, their shortcomings in multi-channel compatibility, environmental durability, and cost control make them unsuitable for the high-performance requirements of modern underwater detection equipment. Utility Model Content

[0008] To address the shortcomings of existing technologies, this utility model provides a waterproof connector structure with a positioning pin, thereby solving the problems mentioned in the background art, such as the inapplicability of existing waterproof connectors to multiple channels and their short service life.

[0009] To achieve the above-mentioned objectives, this utility model provides the following technical solution: a waterproof connector structure with a positioning pin for an underwater probe, comprising:

[0010] The connector male head is a rigid block structure. One side of the connector male head is provided with a waterproof and tensile-resistant wire harness, and the other side of the connector male head is provided with an electrical plug-in shape. The electrical plug-in shape is provided with multiple sets of plug-in electrical connectors.

[0011] The connector female head is a rigid block structure. The connector female head is disposed at one end of the underwater probe. The connector female head is provided with an electrical mating shape corresponding to the electrical plug-in shape. The underwater connector is electrically connected to external equipment through the electrical plug-in shape and the electrical mating shape.

[0012] A sealing gasket, wherein the sealing gasket is a circular high-toughness silicone thin ring, and the sealing gasket is disposed between the connector female head and the connector male head to achieve a sealing and waterproof function;

[0013] A waterproof gasket, wherein the waterproof gasket is a thin, circular cotton ring, and the waterproof gasket is disposed inside the sealing gasket;

[0014] A positioning pin is provided on the male connector and passes through both the male connector and the female connector in sequence.

[0015] Preferably, the connector female head includes an outer ring and an inner ring, both of which are fixedly connected to the underwater probe. A sealing groove is provided between the outer ring and the inner ring. Two sets of positioning mating ears are provided in the inner ring, and the electrical mating shape is provided between the two sets of positioning mating ears.

[0016] Preferably, the male connector includes a plug ring and a waterproof platform. The plug ring corresponds to the sealing groove and is inserted into the sealing groove. The waterproof platform is disposed inside the plug ring and corresponds to the inner ring. The waterproof platform abuts against the inner ring. The waterproof platform is provided with positioning ear insertion slots corresponding to two sets of positioning mating ears. The positioning mating ears are inserted and fixed in the positioning ear insertion slots. The electrical connector is disposed between the positioning ear insertion slots.

[0017] Preferably, the positioning ear has a positioning hole, and the male connector has a pin hole corresponding to the positioning hole.

[0018] Preferably, the sealing gasket is disposed in the sealing groove, with one side of the sealing gasket abutting the bottom of the sealing groove and the other side of the sealing gasket abutting the insertion ring.

[0019] Preferably, the waterproof gasket is disposed between the inner ring and the waterproof platform.

[0020] Preferably, the inner ring has the same dimensions as the waterproof platform, and the inner diameter of the inner ring is larger than the outer diameter of the electrical plug-in type.

[0021] Preferably, the positioning pin includes a first pin and a second pin, both ends of which are provided with hand-tightening nuts. The first pin has a threaded hole, and the second pin has an external thread corresponding to the threaded hole. The first pin and the second pin are threadedly connected.

[0022] Compared with the prior art, this utility model provides a waterproof connector structure with a positioning pin, which has the following advantages:

[0023] This waterproof connector with locating pins features a male connector head, a female connector head, sealing gaskets, waterproof gaskets, and locating pins. It utilizes a plug-in mating mechanism to achieve both mechanical and electrical connections. Multiple connection channels can be configured. Manufacturing is simple and cost-effective. The gasket deformation creates a seal, and the internal air pressure forms a stable sealing structure, providing strong waterproofing and meeting the sealing performance requirements under high water pressure conditions in deep water. The locating pins ensure mechanical locking and overpressure protection, guaranteeing structural stability and proper assembly. The device has a long service life, excellent sealing performance, superior mechanical properties, and strong practicality. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the male connector structure of this utility model;

[0026] Figure 3 This is a schematic diagram of the connector female head structure of this utility model;

[0027] Figure 4 This is a cross-sectional schematic diagram of the connection structure of this utility model;

[0028] Figure 5 This is a schematic diagram of the positioning pin structure of this utility model.

[0029] In the diagram: 1. Male connector; 2. Female connector; 3. Sealing gasket; 4. Waterproof gasket; 5. Positioning pin; 6. Waterproof and tensile-resistant wire harness; 7. Electrically plugged type; 8. Electrically mating type; 9. Outer ring; 10. Inner ring; 11. Sealing groove; 12. Positioning mating ear; 13. Plug ring; 14. Waterproof platform; 15. Positioning ear plug groove; 16. Positioning hole; 17. Pin hole; 18. First pin; 19. Second pin; 20. Hand-tightening nut; 21. Screw hole. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see Figure 1-5 This utility model provides a technical solution:

[0032] A waterproof connector structure with a locating pin for an underwater probe, comprising:

[0033] The male connector 1 is a rigid block structure. A waterproof and tensile-resistant wire harness 6 is provided on one side of the male connector 1, and an electrical plug-in type 7 is provided on the other side. The electrical plug-in type 7 is provided with multiple sets of plug-in electrical connectors. The simplest plug-in electrical connectors can be used directly, and the channel can accommodate a large number of wires. It is suitable for various high-precision underwater probes. This utility model does not limit the model of the waterproof and tensile-resistant wire. Any model commonly used by those skilled in the art is applicable.

[0034] The connector female head 2 is a rigid block structure. The connector female head 2 is set at one end of the underwater probe. The connector female head 2 is provided with an electrical mating shape 8 corresponding to the electrical plug shape 7. The underwater connector is electrically connected to the external equipment through the electrical plug shape 7 and the electrical mating shape 8.

[0035] Sealing gasket 3 is a circular high-toughness silicone thin ring. Sealing gasket 3 is disposed between connector female head 2 and connector male head 1 to achieve sealing and waterproof function.

[0036] Waterproof gasket 4 is a thin, circular cotton ring, and is placed inside the sealing gasket 3.

[0037] The positioning pin 5 is disposed on the male connector 1 and passes through both the male connector 1 and the female connector 2. The positioning pin 5 achieves mechanical connection and fixation between the male connector 1 and the female connector 2. The fixing method is simple, direct, and very stable.

[0038] Furthermore, the connector female head 2 includes an outer ring 9 and an inner ring 10, both of which are fixedly connected to the underwater probe. A sealing groove 11 is provided between the outer ring 9 and the inner ring 10. Two sets of positioning mating ears 12 are provided inside the inner ring 10, and an electrical mating shape 8 is provided between the two sets of positioning mating ears 12.

[0039] Furthermore, the male connector 1 includes a mating ring 13 and a waterproof platform 14. The mating ring 13 corresponds to the sealing groove 11 and is inserted into the sealing groove 11. The waterproof platform 14 is disposed inside the mating ring 13 and corresponds to the inner ring 10, abutting against the inner ring 10. The waterproof platform 14 is provided with positioning ear insertion slots 15 corresponding to two sets of positioning mating ears 12. The positioning mating ears 12 are inserted and fixed in the positioning ear insertion slots 15. The electrical insertion type 7 is disposed between the positioning ear insertion slots 15. If an all-metal material is used, the positioning mating ears 12 and the positioning ear insertion slots 15 are relatively long. In actual use, liquid is not easily able to enter through this gap. However, if the machining accuracy of the positioning mating ears 12 and the positioning ear insertion slots 15 is too low, the gap may be too large, allowing liquid to seep in. It is necessary to control the manufacturing accuracy or use methods commonly used by those skilled in the art, such as bevel mating.

[0040] Furthermore, the positioning ear 12 has a positioning hole 16, and the connector male head 1 has a pin hole 17 corresponding to the positioning hole 16. During use, the positioning pin 5 passes through the pin hole 17 and the positioning hole 16 in sequence. The positioning pin 5 can prevent excessive compression during assembly. If the pressure on the sealing gasket 3 is too high during excessive compression, and exceeds its yield strength, it may break and cause the seal to fail.

[0041] Furthermore, the sealing gasket 3 is disposed within the sealing groove 11, with one side of the sealing gasket 3 abutting against the bottom of the sealing groove 11 and the other side of the sealing gasket 3 abutting against the insertion ring 13. The sealing gasket 3, based on its material properties, undergoes slight deformation, utilizing this slight deformation to seal gaps and achieve a seal.

[0042] Furthermore, the waterproof gasket 4 is disposed between the inner ring 10 and the waterproof platform 14.

[0043] Furthermore, the inner ring 10 has the same dimensions as the waterproof platform 14, but its inner diameter is larger than the outer diameter of the electrical plug-in type 7. The main function of the waterproof gasket 4 is to absorb the infiltrated water. When water is subjected to high pressure and breaks through the first line of defense (sealing gasket 3), the waterproof gasket 4 absorbs the infiltrated liquid. After absorbing the liquid, the waterproof gasket 4 forms the second line of defense. Due to the size difference between the inner ring 10 and the electrical plug-in type 7, a cavity is formed on the inner side of the waterproof gasket 4. The gas inside, combined with the waterproof gasket 4 after absorbing the liquid, can firmly seal the gap between the inner ring 10 and the waterproof platform 14, preventing liquid penetration. A small amount of liquid that does penetrate is absorbed by the waterproof gasket 4, improving its sealing ability. With the help of air pressure, the liquid cannot penetrate.

[0044] Furthermore, the positioning pin 5 includes a first pin 18 and a second pin 19. Both ends of the first pin 18 and the second pin 19 are provided with hand-tightening nuts 20. The first pin 18 has a threaded hole 21, and the second pin 19 has an external thread corresponding to the threaded hole 21. The first pin 18 and the second pin 19 are threadedly connected. The positioning pin 5 uses a threaded connection, making disassembly and use convenient. Although the threaded structure is easily damaged, slight deformation of the positioning pin 5 does not affect its use. Moreover, the positioning pin 5 is relatively easy to manufacture and has low cost. In actual use, the sealing gasket 3, the waterproof gasket 4, and the positioning pin 5 can be listed together as consumable parts.

[0045] Structural Description:

[0046] Male connector 1: rigid block structure, one side is connected to waterproof and tensile-resistant wire bundle 6, and the other side is provided with an electrical plug-in type 7, including a plug-in ring 13 and a waterproof platform 14, for mating with the female connector to achieve connection;

[0047] Connector female head 2: rigid block structure, fixed to one end of the underwater probe, including outer ring 9 and inner ring 10, and provided with electrical mating shape 8, for mating with male head to achieve connection;

[0048] Sealing gasket 3: A circular high-toughness silicone thin ring, placed in the sealing groove 11, with one side abutting the bottom of the sealing groove and the other side abutting the insertion ring 13, achieving a first-level seal through elastic deformation;

[0049] Waterproof gasket 4: A thin, circular cotton ring placed inside the sealing gasket 3, between the inner ring 10 and the waterproof platform 14. It absorbs moisture through capillary action and expands to form secondary protection.

[0050] Positioning pin 5: includes a first pin 18 and a second pin 19, with hand-tightening nuts 20 at both ends, passing through the male connector 1 and female connector 2 in sequence to achieve positioning, locking and overpressure prevention;

[0051] Waterproof and tensile-resistant wire harness 6: Connected to one side of the male connector 1, used for transmitting electrical signals, and has waterproof and tensile-resistant properties;

[0052] Electrical plug-in type 7: Multiple sets of plug-in electrical connectors are distributed between the positioning ear plug slots 15 of the male connector 1, which correspond to the electrical mating type 8 to achieve electrical conduction;

[0053] Electrical mating type 8: Located between the two sets of positioning mating ears 12 of the connector female head 2, corresponding to the electrical plug-in type 7, and used to realize electrical conduction;

[0054] Outer ring 9: A component of connector female head 2, which, together with inner ring 10, is fixed to the underwater probe, and a sealing groove 11 is provided between the two;

[0055] Inner ring 10: A component of the connector female head 2, which has two sets of positioning mating ears 12, corresponding to the waterproof platform 14. Its inner diameter is larger than the outer diameter of the electrical plug-in shape 7 to form an air chamber.

[0056] Sealing groove 11: Located between the outer ring 9 and the inner ring 10 of the connector female head 2, it is used to accommodate the sealing gasket 3 and the plug ring 13 to assist in achieving a seal;

[0057] Positioning mating ear 12: It is located inside the inner ring 10 of the connector female head 2 and has a positioning hole 16. It can be inserted into the positioning ear insertion slot 15 to achieve initial positioning.

[0058] Plug ring 13: A component of the male connector 1, which corresponds to and is inserted into the sealing groove 11 to achieve sealing and connection;

[0059] Waterproof platform 14: Located inside the insertion ring 13 of the male connector 1, corresponding to and abutting against the inner ring 10, and has a positioning ear insertion groove 15 inside;

[0060] Positioning ear socket 15: It is located in the waterproof platform 14 of the male connector 1, corresponding to the positioning mating ear 12, for insertion and fixation, and an electrical plug-in 7 is provided between them;

[0061] Positioning hole 16: It is formed on the positioning lug 12 and corresponds to the pin hole 17, so that the positioning pin 5 can pass through to achieve positioning;

[0062] Pin hole 17: It is opened on the male connector 1 at the corresponding positioning hole 16, so that the positioning pin 5 can pass through and is used to cooperate with the positioning hole 16 to achieve positioning;

[0063] First pin component 18: a component of positioning pin 5, with an internal screw hole 21 for threaded connection with second pin component 19, and hand-tightening nuts 20 at both ends;

[0064] Second pin component 19: A component of the positioning pin 5, it has an external thread corresponding to the screw hole 21, is threadedly connected to the first pin component 18, and has hand-tightening nuts 20 at both ends.

[0065] Hand-tightening nut 20: Located at both ends of the first pin 18 and the second pin 19 of the positioning pin 5, facilitating manual installation and removal of the positioning pin;

[0066] Screw hole 21: It is opened in the first pin 18 and corresponds to the external thread of the second pin 19 to realize the threaded connection between the two.

[0067] Working Principle: The waterproof connector with locating pin achieves reliable underwater connection through the synergistic effect of multiple structures. The connector mainly consists of a male connector 1, a female connector 2, a sealing gasket 3, a waterproof gasket 4, and a locating pin 5. The male connector 1 is a rigid block structure, with a waterproof, tensile-resistant wire harness 6 connected to one side and an electrical plug-in type 7 on the other side, on which multiple sets of plug-in electrical connectors are distributed. The female connector 2 is also a rigid block structure, fixed to one end of the underwater probe, and has an electrical mating type 8 corresponding to the electrical plug-in type 7. During connection, the male and female connectors achieve mechanical connection and electrical conduction through plug-in. This plug-in design overcomes the limitations of traditional threaded connectors, eliminating the need to consider rotational compatibility. It allows for dense arrangement of electrical connectors in a limited space, significantly increasing the number of channels that can be accommodated, meeting the requirements of high-precision underwater probes for simultaneous multi-parameter acquisition. Simultaneously, the linear plugging and unplugging action replaces rotational operation, shortening assembly time and avoiding contact wear. For sealing and waterproofing, the connector employs a double-protection structure. The first level of sealing is achieved by a ring-shaped, high-toughness silicone gasket (sealing gasket 3), which is located within the sealing groove 11 of the female connector 2. When the male connector's insertion ring 13 is inserted into the sealing groove 11, the silicone gasket is compressed and undergoes elastic deformation, filling the tiny gap between the male and female connectors. The high elasticity and aging resistance of the silicone material ensure that the sealing performance is maintained even under high pressure. The second level of protection is a ring-shaped cotton gasket (waterproof gasket 4), located inside the sealing gasket 3, between the inner ring 10 and the waterproof platform 14. When a small amount of liquid breaches the first level of sealing, the cotton material rapidly absorbs moisture and expands through capillary action, forming a watertight barrier. Simultaneously, the cavity design between the inner ring 10 and the waterproof platform 14 allows the internal gas to generate a reaction force under pressure, further preventing liquid penetration. Because the inner diameter of the inner ring 10 is larger than the outer diameter of the electrical insertion shape 7, an annular air chamber is formed. The internal pressure generated by the gas resists external water pressure, preventing liquid infiltration. The positioning pin 5 plays multiple crucial roles in the connector. The positioning lug 12 of the female connector 2 and the positioning lug groove 15 of the male connector form an initial positioning, ensuring accurate mating of the electrical connectors. The positioning pin 5 passes through the pin hole 17 and the positioning hole 16 in sequence, further constraining the relative position of the male and female connectors, achieving precise guidance and positioning with high positioning accuracy. At the same time, the length design of the positioning pin 5 limits the maximum compression distance between the male and female connectors. When the assembly pressure exceeds the set value, the pin bears the main load, preventing the sealing gasket 3 from breaking due to excessive compression exceeding the yield strength, thus playing a role in overpressure protection. In addition, the positioning pin 5 adopts a two-stage threaded connection design (first pin part 18, second pin part 19), with hand-tightening nuts 20 at both ends, providing sufficient pull-out force while allowing quick assembly and disassembly. Compared with traditional threaded connectors, its vibration resistance is significantly improved.

[0068] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A waterproof connector structure with a positioning pin for an underwater probe, characterized in that, include: The connector male head (1) is a rigid block structure. A waterproof and tensile-resistant wire harness (6) is provided on one side of the connector male head (1). An electrical plug-in type (7) is provided on the other side of the connector male head (1). Multiple sets of plug-in electrical connectors are provided on the electrical plug-in type (7). The connector female head (2) is a rigid block structure. The connector female head (2) is located at one end of the underwater probe. The connector female head (2) is provided with an electrical mating shape (8) corresponding to the electrical plug-in shape (7). The underwater connector is electrically connected to the external device through the electrical plug-in shape (7) and the electrical mating shape (8). A sealing gasket (3) is a circular high-toughness silicone ring. The sealing gasket (3) is disposed between the female connector (2) and the male connector (1) to achieve a sealing and waterproof function. Waterproof gasket (4), the waterproof gasket (4) is a circular cotton thin ring, the waterproof gasket (4) is disposed inside the sealing gasket (3); Positioning pin (5) is disposed on the male connector (1) and passes through the male connector (1) and the female connector (2) in sequence.

2. The waterproof connector structure with locating pin according to claim 1, characterized in that, The connector female head (2) includes an outer ring (9) and an inner ring (10). Both the outer ring (9) and the inner ring (10) are fixedly connected to the underwater probe. A sealing groove (11) is provided between the outer ring (9) and the inner ring (10). Two sets of positioning mating ears (12) are provided in the inner ring (10). The electrical mating shape (8) is provided between the two sets of positioning mating ears (12).

3. The waterproof connector structure with locating pin according to claim 2, characterized in that, The male connector (1) includes a plug ring (13) and a waterproof platform (14). The plug ring (13) corresponds to the sealing groove (11) and is inserted into the sealing groove (11). The waterproof platform (14) is disposed inside the plug ring (13) and corresponds to the inner ring (10). The waterproof platform (14) abuts against the inner ring (10). The waterproof platform (14) is provided with positioning ear insertion slots (15) corresponding to two sets of positioning mating ears (12). The positioning mating ears (12) are inserted and fixed in the positioning ear insertion slots (15). The electrical plug-in type (7) is disposed between the positioning ear insertion slots (15).

4. The waterproof connector structure with locating pin according to claim 3, characterized in that, The positioning ear (12) has a positioning hole (16), and the male connector (1) has a pin hole (17) corresponding to the positioning hole (16).

5. The waterproof connector structure with a positioning pin according to claim 3, characterized in that, The sealing gasket (3) is disposed in the sealing groove (11), with one side of the sealing gasket (3) abutting the bottom of the sealing groove (11) and the other side of the sealing gasket (3) abutting the insertion ring (13).

6. The waterproof connector structure with locating pin according to claim 3, characterized in that, The waterproof gasket (4) is disposed between the inner ring (10) and the waterproof platform (14).

7. The waterproof connector structure with a positioning pin according to claim 3, characterized in that, The inner ring (10) has the same dimensions as the waterproof platform (14), and the inner diameter of the inner ring (10) is larger than the outer diameter of the electrical plug-in type (7).

8. The waterproof connector structure with a positioning pin according to claim 1, characterized in that, The positioning pin (5) includes a first pin (18) and a second pin (19). Both ends of the first pin (18) and the second pin (19) are provided with a hand-tightening nut (20). The first pin (18) has a screw hole (21) and the second pin (19) has an external thread corresponding to the screw hole (21). The first pin (18) and the second pin (19) are threadedly connected.

Images