USB waterproof harness with screw thread interlock

The double-layer injection molding design, featuring threaded interlocking and interference fit of three-port sealing rings, solves the aging and water seepage problems of traditional connection harnesses in open-air environments, achieving high-strength connection and waterproof performance, and ensuring stable communication and data security for equipment in scenarios such as photovoltaic power stations.

CN224502505UActive Publication Date: 2026-07-14NINGBO CONNFLY ELECTRONIC CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO CONNFLY ELECTRONIC CO LTD
Filing Date
2025-08-07
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Traditional wiring harnesses are prone to aging and water seepage in open-air high-temperature and high-humidity environments. They also lack mechanical strength and cannot provide power support for external devices, resulting in signal interruption and low maintenance efficiency. They cannot meet the waterproof, vibration-resistant and integrated power supply requirements of scenarios such as photovoltaic power stations.

Method used

It adopts a threaded interlocking structure and a three-port sealing ring interference fit, combined with a double-layer injection molding design, to achieve mechanical interlocking and waterproof performance of the signal transmission end, device access end and power supply end. It integrates a USB power supply module and an integrated cable protection sleeve to improve connection strength and waterproof performance.

Benefits of technology

Significantly improves the strength of plug-in connections, prevents vibration-induced detachment, achieves long-term waterproofing, ensures stable communication of equipment, reduces maintenance costs, and adapts to harsh industrial application scenarios.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a USB waterproof cable harness with threaded interlocking, including a signal transmission end, a device access end, a power supply end, and a tee. The signal transmission end includes a nut and a sealing ring; the nut has internal threads for interlocking with the threads of the connector. The device access end includes a core and a sealing ring; the core has external threads and a slot. The power supply end includes a USB male connector, a USB female connector, a flange, and a sealing ring; the flange has a protrusion for engaging the connector. The tee is wrapped with the connecting wire by double-layer injection molding of an inner and outer membrane. The signal transmission end, device access end, and power supply end are each equipped with a cable sheath to wrap the wire. The sealing rings at each end are interference-fitted with the connector to achieve waterproofing. This cable harness improves connection reliability through threaded interlocking and double locking with a snap-fit ​​mechanism. The three-port sealing ring and double-layer injection molding groove design ensure long-term waterproofing. The integrated USB power supply function and cable sheath structure enhance resistance to mechanical fatigue, significantly ensuring stable communication of the device in harsh environments and reducing maintenance costs.
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Description

Technical Field

[0001] This utility model relates to the field of electrical connector technology, and more specifically, to a USB waterproof cable harness with threaded interlocking. Background Technology

[0002] With the development of industrial intelligence, various devices need to achieve data interaction through network communication ports. Taking photovoltaic power generation systems as an example, the State Grid needs to establish a stable connection with inverters through devices such as data collectors and protocol converters to complete real-time scheduling, monitoring, and remote meter reading of power generation data. These devices generally use RS-485, RS-232, or TTL interfaces for wired communication. However, photovoltaic equipment is mostly deployed in open-air environments and is exposed to high temperature and humidity conditions for a long time. Traditional connection harnesses are prone to aging and water leakage under harsh operating conditions, leading to poor contact or signal interruption. Once communication fails, professional personnel need to enter the site for repair, which is not only inefficient but also results in the permanent loss of power generation data during the failure period, causing significant economic losses.

[0003] Currently, waterproof wire harnesses on the market have obvious defects:

[0004] Firstly, the plug and socket mainly rely on plastic clips for connection, which are not mechanically strong enough and are prone to loosening and falling off under equipment vibration or external pulling.

[0005] Secondly, waterproof designs often use a single sealing ring structure, which is prone to deformation and failure after long-term use, allowing moisture to easily seep in through the gaps at the joints.

[0006] Third, when the inverter's communication port is not equipped with a power supply function, traditional wiring harnesses cannot provide power to external devices (such as protocol converters), requiring additional wiring and increasing system complexity. Although some solutions attempt to improve waterproofing, they do not resolve the core contradiction between connection strength and functional expansion.

[0007] Furthermore, scenarios such as photovoltaic power plants place extremely high demands on the anti-sway performance of wiring harnesses. Traditional sheaths lack sufficient bonding strength with the wire body, and repeated bending easily leads to wire breakage. Existing T-junction structures often use single-layer injection molding protection, which is prone to cracking under temperature changes, allowing moisture to penetrate the wire core. How to achieve integrated waterproofing, vibration resistance, and power supply through structural innovation, while ensuring long-term environmental tolerance, has become a key technological bottleneck in the field of industrial communication connections. Utility Model Content

[0008] In view of the above-mentioned technical problems in related technologies, this utility model proposes a USB waterproof cable harness with threaded interlocking, which can overcome the above-mentioned shortcomings of the prior art.

[0009] To achieve the above-mentioned technical objectives, the technical solution of this utility model is implemented as follows:

[0010] A waterproof USB cable harness with threaded interlocking;

[0011] This threaded interlocking USB waterproof cable harness includes a signal transmission end, a device access end, a power supply end, and a tee. The signal transmission end includes a signal transmission end nut and a signal transmission end sealing ring. The nut has internal threads for interlocking with the threads of the connector. The device access end includes a rubber core and a device access end sealing ring. The rubber core has external threads and a slot. The power supply end includes a USB male connector, a USB female connector, a flange, and a power supply end sealing ring. The flange has a protrusion for engaging the connector. The tee wraps the connecting wire with a double-layer injection molding structure, including an inner film and an outer film. The signal transmission end, device access end, and power supply end are respectively provided with a signal transmission end outer film cable sleeve, a device access end wire cable sleeve, and a power supply end cable sleeve for wrapping the wire. The power supply end sealing ring, device access end sealing ring, and signal transmission end sealing ring are respectively interference-fitted with the corresponding connector to achieve waterproofing.

[0012] Furthermore, the signal transmission end also includes an inner membrane and an outer membrane arranged sequentially from the inside to the outside, the nut is embedded between the inner membrane and the outer membrane, and the sealing ring is assembled in the sealing ring groove of the signal transmission end.

[0013] Furthermore, the terminal of the device access end is interference-fitted with the core socket through a locking point, and the terminal welding cup is welded to the copper wire of the wire; the external thread of the core is embedded in the outer film to form an integral structure.

[0014] Furthermore, the power-taking end includes a male core and a female core, which are respectively provided with a USB male core groove and a power-taking female core groove; the USB male connector and the USB female connector are sequentially wrapped by a double-layer injection molding of an inner film and an outer film, and the inner film is embedded in the male core groove and the female core groove.

[0015] Furthermore, the outer membrane surface of the power-taking terminal is provided with a groove to increase friction, and the flange is fitted onto the outer ring of the male rubber core through an inner ring.

[0016] Furthermore, the inner diaphragm of the tee is provided with a groove, and the outer diaphragm is filled with plastic and embedded in the groove to form a mechanical interlock.

[0017] Furthermore, the inner hole of the signal transmission end nut is fitted onto the outer ring of the inner diaphragm, and the inner ring of the sealing ring is interference-fitted with the mating plug.

[0018] Furthermore, the device access end sealing ring is assembled into the rubber core sealing ring groove through the inner ring, and the outer membrane surface is provided with an anti-swaying cable sleeve.

[0019] Furthermore, the power-on sealing ring is interference-fitted onto the outer ring of the USB male connector via an inner ring, and the flange buckle protrusion engages with the mating plug groove.

[0020] Furthermore, the outer membrane sheath of the signal transmission end, the wire sheath of the device access end, and the wire sheath of the power take-up end are integrally formed with the outer membrane of the signal transmission end, the outer membrane of the device access end, and the outer membrane of the power take-up end, and completely cover the outer circumference of the wire.

[0021] The beneficial effects of this utility model are as follows: The dual mechanical interlocking structure of the screw thread interlock at the signal transmission end and the snap-fit ​​at the device access end significantly improves the connection strength and effectively prevents accidental detachment due to vibration; the interference fit of the three-port sealing ring and the interlocking design of the three-way double-layer injection-molded groove achieve long-lasting waterproof sealing performance, completely avoiding the risk of water seepage in high-temperature and high-humidity environments; the integration of a USB power supply module and an integrated cable sheath at the power supply end balances the power supply function of external devices with the cable's resistance to mechanical fatigue; thus, it achieves the effect of ensuring continuous and stable communication of equipment, preventing data loss, and significantly reducing maintenance costs in harsh industrial application scenarios. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a first-view exploded view of a USB waterproof cable harness with threaded interlocking according to an embodiment of the present invention;

[0024] Figure 2 This is a second-view exploded view of a USB waterproof cable harness with threaded interlocking according to an embodiment of the present invention;

[0025] Figure 3 This is a perspective view of the overall structure of a USB waterproof cable harness with threaded interlocking according to an embodiment of the present utility model;

[0026] In the diagram: 1. Signal transmission end; 2. Device access end; 3. Power supply end; 4. T-junction; 5. Power supply end sealing ring; 6. Power supply end USB male connector; 7. Power supply end male rubber core; 8. Power supply end flange; 9. T-junction inner membrane; 10. T-junction outer membrane; 11. Device access end outer membrane; 12. Device access end terminal; 13. Device access end rubber core; 14. Device access end sealing ring; 15. Power supply end inner membrane; 16. Power supply end outer membrane; 17. Power supply end female rubber core; 18. 19. Power connector (USB female); 20. Wire; 21. Signal transmission end outer membrane; 22. Signal transmission end nut; 23. Signal transmission end inner membrane; 24. Signal transmission end sealing ring; 25. Signal transmission end plug; 26. Signal transmission end sealing ring groove; 27. Signal transmission end nut internal thread; 28. Signal transmission end nut inner hole; 29. ​​Signal transmission end outer membrane cable sleeve; 30. Device access end terminal socket; 31. Signal transmission end sealing ring inner ring; 22. Signal transmission... 32. Outer ring of inner diaphragm at the input end; 33. Inner ring of sealing ring at the equipment input end; 34. Groove of sealing ring for rubber core at the equipment input end; 35. Rubber core slot at the equipment input end; 36. External thread of rubber core at the equipment input end; 37. Terminal locking point at the equipment input end; 38. Welded cup at the terminal at the equipment input end; 39. Groove of outer diaphragm at the equipment input end; 40. Copper wire of wire at the equipment input end; 41. Wire sheath at the equipment input end; 42. Outer ring of USB female connector at the power take-off end; 43. Groove of female rubber core at the power take-off end; 44. USB socket for female connector at power take-off end; 45. Outer membrane groove at power take-off end; 46. Inner ring of flange buckle at power take-off end; 47. Groove for male USB connector at power take-off end; 48. Inner membrane groove of tee; 49. Groove for flange buckle; 50. Cable sleeve at power take-off end; 51. Groove for inner membrane at power take-off end; 52. Outer ring of flange buckle at power take-off end; 53. Outer ring of male USB connector at power take-off end; 54. Outer ring of male USB connector at power take-off end; 55. Inner ring of sealing ring at power take-off end. Detailed Implementation

[0027] 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 skilled in the art are within the protection scope of the present utility model.

[0028] It should be understood that in the description of the embodiments of this utility model, the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of 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 the embodiments of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of the embodiments of this utility model, "several" means two or more, unless otherwise explicitly specified.

[0029] like Figure 1-3 As shown in the figure, a USB waterproof cable harness with threaded interlocking according to an embodiment of the present invention includes a signal transmission end 1, a device access end 2, a power supply end 3, and a T-joint 4; the signal transmission end 1 includes a signal transmission end nut 21 and a signal transmission end sealing ring 23, the nut 21 having internal threads 26 for interlocking with the threads of the mating plug; the device access end 2 includes a rubber core 13 and a device access end sealing ring 14, the rubber core 13 having external threads 35 and a slot 34; the power supply end 3 includes a USB male connector 6 and a USB female connector 18. The flange buckle 8 and the power-taking end sealing ring 5 are provided. The flange buckle 8 is provided with a protrusion 51 for engaging the connector. The tee 4 is wrapped with the connecting wire by a double-layer injection molding structure, including an inner membrane 9 and an outer membrane 10. The signal transmission end 1, the device access end 2 and the power-taking end 3 are respectively provided with a signal transmission end outer membrane cable sleeve 28, a device access end wire cable sleeve 40 and a power-taking end cable sleeve 49 for wrapping the wire 19. The power-taking end sealing ring 5, the device access end sealing ring 14 and the signal transmission end sealing ring 23 are respectively interference-fitted with the corresponding connector to achieve waterproofing.

[0030] According to an embodiment of the present invention, a USB waterproof cable harness with threaded interlocking is provided. In a specific embodiment, the signal transmission end 1 further includes an inner membrane 22 and an outer membrane 20 arranged sequentially from the inside to the outside. The nut 21 is embedded between the inner membrane 22 and the outer membrane 20, and the sealing ring 23 is assembled in the sealing ring groove 25 of the signal transmission end.

[0031] According to an embodiment of the present invention, a USB waterproof cable harness with threaded interlocking is provided. In a specific embodiment, the terminal 12 of the device access end 2 is interference-fitted with the core insertion hole 29 through the locking point 36, and the terminal welding cup 37 is welded to the copper wire 39 of the wire; the external thread 35 of the core 13 is embedded in the outer membrane 11 to form an integral structure.

[0032] According to an embodiment of the present invention, a USB waterproof cable harness with threaded interlocking is provided. In a specific embodiment, the power-taking end 3 includes a male core 7 and a female core 17, which are respectively provided with a USB male core groove 46 and a power-taking female core groove 42. The USB male connector 6 and the USB female connector 18 are sequentially wrapped by a double-layer injection molding of an inner film 15 and an outer film 16. The inner film 15 is embedded in the male core groove 46 and the female core groove 42.

[0033] According to an embodiment of the present invention, a USB waterproof cable harness with threaded interlocking is provided. In a specific embodiment, the surface of the power-taking end outer membrane 16 is provided with a groove 44 to increase friction, and the flange buckle 8 is sleeved on the male core outer ring 52 through the inner ring 45.

[0034] According to an embodiment of the present invention, a USB waterproof cable harness with threaded interlocking is provided. In a specific embodiment, the inner membrane 9 of the tee 4 is provided with a groove 47, and the outer membrane 10 is injected with plastic and embedded in the groove 47 to form a mechanical interlock.

[0035] According to an embodiment of the present invention, a USB waterproof cable harness with threaded interlocking is provided. In a specific embodiment, the inner hole 27 of the signal transmission end nut 21 is sleeved on the outer ring 31 of the inner membrane, and the inner ring 30 of the sealing ring is interference-fitted with the mating plug.

[0036] According to an embodiment of the present invention, a USB waterproof cable harness with threaded interlocking is provided. In a specific embodiment, the device access end sealing ring 14 is assembled in the rubber core sealing ring groove 33 through the inner ring 32, and the outer membrane 11 is provided with an anti-sway cable sleeve 40.

[0037] According to an embodiment of the present invention, a USB waterproof cable harness with threaded interlocking is provided. In a specific embodiment, the power-taking end sealing ring 5 is interference-fitted to the outer ring 54 of the USB male connector through the inner ring 55, and the flange buckle protrusion 51 is engaged with the mating plug groove 48.

[0038] According to an embodiment of the present invention, a USB waterproof cable harness with threaded interlocking is provided. In a specific embodiment, the signal transmission end outer membrane sheath 28, the device access end wire sheath 40, and the power take-up end sheath 49 are integrally formed with the signal transmission end outer membrane 20, the device access end outer membrane 11, and the power take-up end outer membrane 16, respectively, and completely wrap around the outer circumference of the wire 19.

[0039] To facilitate understanding of the above-mentioned technical solutions of this utility model, the following detailed description of the above-mentioned technical solutions of this utility model is provided through specific usage methods.

[0040] In practical use, the USB waterproof cable harness with threaded interlocking described in this utility model includes a signal transmission end, a device access end, a T-junction, and a power supply end. The signal transmission end is responsible for signal transmission between two devices, the device access end is responsible for receiving signals from the host device, and the T-junction connects the signals that need to be converted between the signal transmission end, the device access end, and the power supply end. The connection is then waterproofed using a mold forming method. Each of the signal transmission end, device access end, and power supply end mates with a corresponding plug. Each of the three ports is designed with a sealing ring, which, when mated with the corresponding plug, achieves a waterproof effect. The plug of the signal transmission end is connected to the wire using a crimping method. After connection, the plug with the connected wires is placed into an injection mold for molding. To ensure waterproof quality, an inner membrane is formed first, and then the formed inner membrane is placed into the mold. In the injection mold, the outer film is formed. Before the outer film is formed, the inner hole of the signal transmission end nut is fitted onto the outer ring of the inner film of the signal transmission end. After the outer film is formed, the nut will be fixed between the inner and outer films, forming a limit and achieving the purpose of fixation. After the nut is assembled, the inner ring of the signal transmission end sealing ring is fitted into the sealing ring groove of the signal transmission end to complete the assembly of the signal transmission end sealing ring. The inner thread of the signal transmission end nut will interlock with the corresponding outer thread of the plug to achieve the purpose of fastening the connection. At the same time, since the signal transmission end is designed with a sealing ring, when the signal transmission end is plugged into the corresponding plug, it has a waterproof function under the action of the sealing ring. In order to ensure the anti-sway strength of the wire, a wire sheath is also designed on the outer film of the signal transmission end. The wire sheath will wrap the wire completely. When the wire sways, the wire sheath will bear or absorb the main external force and prevent the wire from breaking.

[0041] The terminal at the device access end is first inserted into the corresponding plastic core socket. The terminal has several locking points that are interference-fitted with the corresponding plastic core socket. This interference fit creates a retaining force, preventing the terminal from easily detaching from the plastic core, thus fixing it to the plastic core and achieving a limiting effect. After the terminal and plastic core are assembled, the copper wire is placed into the terminal solder cup, and then the connection between the terminal and the wire is completed by soldering. After the connection is complete, the entire product is placed into an injection mold for outer molding. Because the plastic core has external threads... Because the external threads have a concave-convex structure, after the outer film is formed, the plastic material will be squeezed into the groove of the external threads and tightly wrap them. After wrapping, the outer film and the core will form an integrated structure, thus ensuring the bonding strength between the outer film and the core. After the outer film is formed, the inner ring of the device access end sealing ring is inserted into the sealing ring groove of the device access end core to complete the assembly of the sealing ring. This sealing ring also has waterproof capability after being plugged into the corresponding plug. In addition, the device access end core slot and the corresponding plug hook can also cooperate to ensure a tight connection with the plug after plugging and will not easily fall off. Similarly, to ensure the anti-sway strength of the wire, a protective sleeve is also designed on the outer film of the device access end. The protective sleeve will wrap around the entire wire. When the wire sways, the protective sleeve will bear or absorb the main external force to prevent the wire from breaking.

[0042] The USB male and female connectors are connected via wires. After connection, the USB female connector passes through the female core socket of the USB power supply terminal, and the outer ring of the USB male connector passes through the male core socket. The female and male core sockets tightly wrap around the USB female and male connectors, preventing glue leakage during the injection molding of the inner membrane of the power supply terminal. After the USB male and female connectors are assembled, the inner ring of the flange is passed through the outer ring of the USB male core. After passing through, the USB male and female connectors with the flange are placed into the injection mold for inner membrane molding. To increase the bonding strength between the inner membrane and the male and female cores, the male and female cores are designed with several grooves. During the inner membrane molding process, the plastic of the inner membrane will be directly injected into the grooves of the male and female cores. After injection, the male and female cores and the inner membrane will become one piece, which will greatly improve the strength. After the inner membrane is formed, it is placed into the injection mold for outer membrane forming. The outer membrane will tightly wrap the inner membrane. Similarly, because there are several grooves on the inner membrane, the plastic material of the outer membrane will be directly injected into the grooves of the inner membrane during outer membrane forming. This will increase the connection strength between the outer and inner membranes. At the same time, in order to conform to ergonomics, there are several grooves on the outer membrane. These grooves will increase the friction between the hand and the outer membrane, making it easy to handle and operate. After the outer membrane is formed, the inner ring of the power-on end sealing ring is fitted onto the outer ring of the USB male connector. The inner ring of the sealing ring and the outer ring of the USB male connector have an interference fit. Under the action of the interference fit, the sealing ring will be fixed on the outer ring of the USB male connector and will not easily fall off. When the power-on end is mated with the corresponding plug, the sealing ring will have waterproof capability. At the same time, the protrusion on the flange buckle will lock into the groove on the corresponding mating plug after the flange buckle is rotated. Simultaneously, the flange buckle groove on the USB female core will also be locked by the flange buckle protrusion on the corresponding mating plug. After locking, neither side will easily fall off, thus ensuring a safe and reliable connection. Similarly, to ensure the anti-sway strength of the cable, a cable protection sleeve is also designed on the outer membrane of the power-on end. The cable protection sleeve will completely wrap around the cable. When the cable swings, the cable protection sleeve will bear or absorb the main external force to prevent the cable from breaking.

[0043] The purpose of the T-junction is to effectively protect the connecting wires between the power supply end, signal transmission end, and equipment access end. After the connecting wires between the power supply end, signal transmission end, and equipment access end are connected, the connected wires are placed into the injection mold for inner film forming. After the inner film is formed, the first layer of protection is formed. Then, the inner film is placed into the injection mold for outer film forming to form the second layer of double protection. In order to increase the bonding strength between the inner and outer films, several grooves are also designed on the inner film.

[0044] In summary, by utilizing the above-mentioned technical solution of this utility model, the double mechanical interlocking structure of the screw interlock at the signal transmission end and the snap-fit ​​at the device access end significantly improves the strength of the plug-in connection and effectively prevents accidental detachment caused by vibration; the interference fit of the three-port sealing ring and the interlocking design of the three-way double-layer injection-molded groove achieve long-term waterproof sealing performance, completely avoiding the risk of water leakage in high temperature and high humidity environments; the integration of a USB power supply module and an integrated cable sheath at the power supply end balances the power supply function of external devices with the cable's resistance to mechanical fatigue; thus achieving the effect of ensuring continuous and stable communication of equipment, preventing data loss, and significantly reducing maintenance costs in harsh industrial application scenarios.

[0045] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A USB waterproof cable harness with threaded interlocking, characterized in that, It includes a signal transmission end (1), a device access end (2), a power supply end (3), and a tee (4); the signal transmission end (1) includes a signal transmission end nut (21) and a signal transmission end sealing ring (23), the nut (21) is provided with internal threads (26) for interlocking with the threads of the mating plug; the device access end (2) includes a rubber core (13) and a device access end sealing ring (14), the rubber core (13) is provided with external threads (35) and a slot (34); the power supply end (3) includes a USB male connector (6), a USB female connector (18), a flange buckle (8), and a power supply end sealing ring (5). The flange buckle (8) is provided with a protrusion (51) for snapping the connector; the tee (4) is wrapped with the connecting wire by a double-layer injection molding structure, including the inner tee membrane (9) and the outer tee membrane (10); the signal transmission end (1), the device access end (2) and the power take-off end (3) are respectively provided with the outer membrane wire sheath (28) of the signal transmission end, the wire sheath (40) of the device access end and the wire sheath (49) of the power take-off end for wrapping the wire (19), and the sealing ring (5) of the power take-off end, the sealing ring (14) of the device access end and the sealing ring (23) of the signal transmission end are respectively interference fit with the corresponding connector to achieve waterproofing.

2. The USB waterproof cable harness with threaded interlocking as described in claim 1, characterized in that, The signal transmission end (1) also includes an inner membrane (22) and an outer membrane (20) arranged sequentially from the inside to the outside. The nut (21) is embedded between the inner membrane (22) and the outer membrane (20), and the sealing ring (23) is assembled in the sealing ring groove (25) of the signal transmission end.

3. A USB waterproof cable harness with threaded interlocking as described in claim 1, characterized in that, The terminal (12) of the device access end (2) is press-fitted with the core socket (29) through the locking point (36), and the terminal welding cup (37) is welded to the copper wire (39); the external thread (35) of the core (13) is embedded in the outer membrane (11) of the device access end to form an integral structure.

4. A USB waterproof cable harness with threaded interlocking as described in claim 1, characterized in that, The power-taking end (3) includes a male core (7) and a female core (17), which are respectively provided with a male core groove (46) and a female core groove (42); the USB male connector (6) and the USB female connector (18) are successively wrapped by double-layer injection molding of the inner film (15) and the outer film (16) of the power-taking end, and the inner film (15) of the power-taking end is embedded in the male core groove (46) and the female core groove (42).

5. A USB waterproof cable harness with threaded interlocking as described in claim 4, characterized in that, The outer membrane (16) of the power-taking end is provided with a groove (44) to increase friction. The flange buckle (8) is sleeved on the outer ring (52) of the male rubber core through the inner ring (45) of the power-taking end flange buckle.

6. A USB waterproof cable harness with threaded interlocking as described in claim 1, characterized in that, The inner membrane (9) of the tee (4) is provided with a groove (47), and the outer membrane (10) of the tee is filled with plastic and embedded in the groove (47) to form a mechanical interlock.

7. A USB waterproof cable harness with threaded interlocking as described in claim 2, characterized in that, The inner hole (27) of the signal transmission end nut (21) is fitted onto the outer ring (31) of the inner membrane, and the inner ring (30) of the signal transmission end sealing ring (23) is interference-fitted with the docking plug.

8. A USB waterproof cable harness with threaded interlocking as described in claim 3, characterized in that, The device access end sealing ring (14) is assembled in the rubber core sealing ring groove (33) through the inner ring (32) of the device access end sealing ring, and the outer membrane (11) of the device access end is provided with an anti-swaying cable sleeve (40).

9. A USB waterproof cable harness with threaded interlocking as described in claim 4, characterized in that, The power-on sealing ring (5) is interference-fitted to the outer ring (54) of the USB male connector through the inner ring (55) of the power-on sealing ring, and the flange buckle protrusion (51) is engaged with the mating plug groove (48).

10. A USB waterproof cable harness with threaded interlocking as described in claim 1, characterized in that, The outer membrane sheath (28) of the signal transmission end, the wire sheath (40) of the device access end, and the wire sheath (49) of the power take-up end are integrally formed with the outer membrane (20) of the signal transmission end, the outer membrane (11) of the device access end, and the outer membrane (16) of the power take-up end, and completely wrap around the outer circumference of the wire (19).