USB connector with waterproof function

Abstract

The invention discloses a USB connector with a waterproof function, and relates to the technical field of USB connectors, the USB connector comprises a mounting frame, one side of the mounting frame is fixedly connected with a base, metal sheets distributed at equal intervals are inserted in one side of the base, one side of the base is provided with a clamping groove, one side of each metal sheet is clamped in the clamping groove, and the other side of each metal sheet is provided with a waterproof layer. A square groove is formed in the inner wall of the bottom of the mounting frame, an elastic piece is arranged in the square groove, a connecting base is fixedly connected to the outer wall of the mounting frame, and a waterproof shell is arranged on one side of the connecting base. According to the waterproof device, a rubber ring can be tightly pressed towards the inner wall of the waterproof shell, and a fourth sealing ring can be tightly pressed on the inner wall of one side of a sealing seat, so that the fourth sealing ring can be pressurized to a certain extent while the waterproof shell is locked, and the fourth sealing ring can be more tightly attached to the sealing seat and a fixing groove; and the waterproof performance of the front end part of the waterproof shell is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of USB connectors, and in particular to a USB connector with a waterproof function. Background Art

[0002] The USB connector is a commonly used electronic connector, which is used for data transmission and charging between connecting devices and hosts (such as computers, mobile phones, audio devices, etc.). Since the USB connector is an electronic connector, the waterproof performance after its installation determines the scope of application of the USB connector in electronic devices. The better the waterproof performance of the USB connector, the wider its scope of application. It can effectively prevent water droplets from entering the internal circuit board of the electronic device from the USB connector when the electronic device accidentally touches water.

[0003] After searching, the Chinese utility model patent with the announcement number CN206712114U discloses a waterproof USB connector, which includes a main shell and an outer cover. The outer cover is fixedly arranged at one end of the main shell, and an opening is opened on the outer cover. A USB connector and a PCB board are arranged in the main shell, and the USB connector is matched and arranged at the opening; the USB connector is provided with a USB connector, a metal shell for accommodating the USB connector and a waterproof cover mounted on the metal shell. The USB connector includes an integrally formed insulating body and a terminal. The front end of the waterproof cover is arranged close to the metal shell, and the rear end of the waterproof cover is covered on the rear end of the insulating body.

[0004] Based on the existing findings, the above patents still have the following deficiencies: the USB connector is waterproof only by putting a waterproof sleeve on the outer surface of the metal shell, and its waterproof effect is poor. In an environment with excessive water pressure (such as deep water), a gap is easily generated between the waterproof sleeve and the outer surface of the metal shell, causing water to flow from the gap to the PCB board at the other end of the USB connector, which may cause water intrusion and damage to the electrical appliance in severe cases. Therefore, a USB connector with waterproof function is urgently needed to solve the above problems. Summary of the invention

[0005] In view of the problems in the related art, the present invention provides a USB connector with a waterproof function to overcome the above technical problems existing in the existing related art.

[0006] The technical solution of the present invention is achieved in this way:

[0007] A USB connector with waterproof function, comprising a mounting frame, one side of the mounting frame is fixedly connected to a base, one side of the base is plugged with metal sheets distributed at equal distances, one side of the base is provided with a card slot, one side of the metal sheet is clamped inside the card slot, a square slot is provided on the bottom inner wall of the mounting frame, and an elastic sheet is arranged inside the square slot;

[0008] A connection seat is fixedly connected to the outer wall of the installation frame, and a waterproof shell is provided on one side of the connection seat;

[0009] A locking assembly for fixing the waterproof shell is provided on one side of the connecting seat;

[0010] A sealing component is provided inside the waterproof shell;

[0011] A card plate is provided at the bottom of the installation frame;

[0012] One end of the waterproof shell is provided with a mounting groove, and a third sealing ring is fixedly connected to the inside of the mounting groove. A second sealing groove is provided on the outer wall of one side of the connecting seat, and the third sealing ring cooperates with the second sealing groove. When it is necessary to waterproof the outside of the mounting frame, one end of the waterproof shell can be aligned with the connecting seat first. At the same time, the third sealing ring fixed inside the mounting groove on one side of the waterproof shell will be clamped in the second sealing groove on one side of the connecting seat, thereby achieving sealing and waterproofing of the rear end of the waterproof shell.

[0013] Furthermore, an extension seat is fixedly connected to one end of the waterproof shell away from the mounting groove, a first sealing groove is provided on an outer wall of the extension seat, there are two groups of the first sealing grooves, second sealing rings are clamped inside the two groups of the first sealing grooves, there are two groups of the second sealing rings, an integrally formed first sealing ring is provided on one side of the second sealing ring, the specification of the first sealing ring is larger than the specification of the waterproof shell, the first sealing ring cooperates with the fixing seat, so that it can better fit with the fixing seat in the electrical equipment, and achieve a good end waterproofing effect.

[0014] Furthermore, an elastic strip is provided on one side of the second sealing ring, the cross section of the elastic strip is arc-shaped, and a convex block portion is fixedly connected to the circumferential outer wall of the elastic strip, which can play a good supporting role and ensure that the first sealing ring can be better fitted and installed with the fixing seat.

[0015] Furthermore, the number of the protrusions is two groups, and the two groups of protrusions and the circumferential outer walls of the elastic strip are in contact with one side outer wall of the first sealing ring.

[0016] Furthermore, the locking assembly includes a circular hole formed on one side of the connecting seat, and a threaded hole is formed on one end of the waterproof shell having an installation groove. A fixing bolt is connected to the internal thread of the threaded hole, and one end of the fixing bolt passes through the inside of the circular hole, thereby realizing locking and fixing between the waterproof shell and the connecting seat, ensuring that the waterproof shell can achieve locking and fixing while waterproofing and sealing the rear end of the connecting seat.

[0017] Furthermore, a movable groove is provided on an inner wall of one side of the waterproof shell, and the movable groove is communicated with the threaded hole.

[0018] Furthermore, a fixing groove is provided on an inner wall of one side of the waterproof shell, a fourth sealing ring is fixedly connected inside the fixing groove, a sealing seat is fixedly connected to an outer wall of the installation frame, and the fourth sealing ring cooperates with the sealing seat.

[0019] Furthermore, the outer walls of the four sides of the fourth sealing ring are fixedly connected with rubber rings, the rubber ring and one side of the fourth sealing ring form a rectangular groove, the inner walls of the four sides of the waterproof shell are provided with storage grooves, and one side of the rubber ring is located inside the storage groove.

[0020] Furthermore, the number of rubber rings located on the upper and lower sides of the fourth sealing ring is two groups, and the two groups of rubber rings are symmetrically distributed along the center line of the fourth sealing ring, and the number of rubber rings located on the left and right sides of the fourth sealing ring is one group.

[0021] Furthermore, the sealing assembly includes a spring fixedly connected to the inner wall of one side of the movable groove, the end of the spring away from the inner wall of the movable groove is fixedly connected to a vertical plate, one end of the vertical plate is fixedly connected to a pressure rod, and the end of the pressure rod away from the vertical plate is fixedly connected to a top head, the cross-section of the top head is an isosceles trapezoid, one end of the top head is inserted into the interior of the rectangular groove, the inner wall of the waterproof shell is fixedly connected to a guide seat, the pressure rod is slidably connected to the guide seat, and a through groove is provided on the inner wall of one side of the sealing seat, and the through groove is adapted to the top head. As the top head is continuously inserted, its two sides will gradually squeeze the rubber ring and the fourth sealing ring, so that the rubber ring can be pressed against the inner wall of the waterproof shell, and the fourth sealing ring will be pressed against the inner wall of one side of the sealing seat, so that the waterproof shell can be locked while the fourth sealing ring can be pressurized to a certain extent, so that the fourth sealing ring can fit the sealing seat and the fixed groove more closely, thereby ensuring the waterproof performance of the front end of the waterproof shell.

[0022] Beneficial effects of the present invention:

[0023] The present invention provides a USB connector with waterproof function. Through the provision of a waterproof shell, a connecting seat, a third sealing ring and a second sealing groove, when it is necessary to waterproof the outside of the installation frame, one end of the waterproof shell can be aligned with the connecting seat first. At the same time, the third sealing ring fixed inside the installation groove on one side of the waterproof shell will be clamped in the second sealing groove on one side of the connecting seat, thereby achieving sealing and waterproofing of the rear end of the waterproof shell. When the waterproof shell is sleeved on the outer wall of the installation frame, the staff will pass one end of the fixing bolt through the inside of the circular hole, and then rotate the fixing bolt to make it mesh with the threaded hole, thereby achieving locking and fixing between the waterproof shell and the connecting seat, ensuring that the waterproof shell can achieve locking and fixing while waterproofing the rear end of the connecting seat.

[0024] The present invention provides a USB connector with waterproof function. Through the provided locking assembly and sealing assembly, when the staff rotates the fixing bolt, one end of the fixing bolt will gradually move into the movable groove. When the end of the fixing bolt contacts one side of the vertical plate, it will continue to rotate to move it in the direction close to the bottom of the movable groove. During the movement of the vertical plate, the pressure rod can be driven to move as a whole. At the same time, a top head is fixed on the side of the pressure rod away from the vertical plate. Since the diameter of the end of the top head is larger than the inner diameter of the rectangular groove, and the cross-section of the top head is an isosceles trapezoid, as the top head is continuously inserted, its two sides will gradually squeeze the rubber ring and the fourth sealing ring, so that the rubber ring can be pressed against the inner wall of the waterproof shell, and the fourth sealing ring will be pressed against the inner wall of one side of the sealing seat, so that the waterproof shell can be locked while the fourth sealing ring can be pressed to a certain extent, so that the fourth sealing ring can fit the sealing seat and the fixing groove more closely, thereby ensuring the waterproof performance of the front end of the waterproof shell.

[0025] The present invention provides a USB connector with waterproof function. By arranging an extension seat at the end of a waterproof shell, the USB connector can be better installed in cooperation with an electrical device. During the installation process, a first sealing ring is arranged on the outer wall of the extension seat at the end of the connector. Meanwhile, the specification of the first sealing ring is larger than that of the waterproof shell, so that the USB connector can better fit with the fixing seat in the electrical device and achieve a good waterproof effect at the end. When the first sealing ring cooperates with the fixing seat, the elastic strips and the protruding blocks arranged in the middle of the two groups of second sealing rings can play a good supporting role, thereby ensuring that the first sealing ring can be better fitted with the fixing seat for installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0027] Figure 1 It is a schematic diagram of the overall front structure of the present invention.

[0028] Figure 2 It is a schematic diagram of the overall back structure of the present invention.

[0029] Figure 3 It is a schematic diagram of the back structure of the overall disassembly of the present invention.

[0030] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure at point A in the middle.

[0031] Figure 5It is a schematic diagram of the front structure of the present invention after overall disassembly.

[0032] Figure 6 It is a schematic diagram of the structure after the present invention and the fixing base are installed.

[0033] Figure 7 It is a schematic diagram of the overall half-section structure of the present invention.

[0034] Figure 8 For the present invention Figure 7 Schematic diagram of the enlarged structure at point B in the middle.

[0035] Fig. 9 For the present invention Figure 7 Schematic diagram of the enlarged structure at point C in the middle.

[0036] In the figure:

[0037] 1. Waterproof shell; 2. Connecting seat; 3. Mounting frame; 4. First sealing ring; 5. Extension seat; 6. Square groove; 7. Elastic sheet; 8. Card plate; 9. Base; 10. Card groove; 11. Metal sheet; 12. Fixing bolt; 13. First sealing groove; 14. Second sealing ring; 15. Third sealing ring; 16. Second sealing groove; 17. Sealing seat; 18. Vertical plate; 19. Pressure rod; 20. Spring; 21. Guide seat; 22. Head; 23. Fourth sealing ring; 24. Rubber ring; 25. Rectangular groove; 26. Mounting groove; 27. Storage groove; 28. Fixed seat; 29. ​​Bump; 30. Elastic strip; 31. Through groove; 32. Round hole; 33. Threaded hole; 34. Movable groove. DETAILED DESCRIPTION

[0038] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0039] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0040] In the description of this patent, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0041] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be fixedly connected or set, or it can be detachably connected or set, or connected or set in one piece. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0042] See also Figure 1-Figure 9 A USB connector with waterproof function, comprising a mounting frame 3, a base 9 is fixedly connected to one side of the mounting frame 3, metal sheets 11 are inserted into one side of the base 9 and are distributed at equal distances, a card slot 10 is provided on one side of the base 9, one side of the metal sheet 11 is clamped in the inside of the card slot 10, a square slot 6 is provided on the inner wall of the bottom of the mounting frame 3, and an elastic sheet 7 is provided in the inside of the square slot 6;

[0043] The outer wall of the installation frame 3 is fixedly connected with a connection seat 2, and a waterproof shell 1 is arranged on one side of the connection seat 2;

[0044] A locking assembly for fixing the waterproof housing 1 is provided on one side of the connecting seat 2;

[0045] A sealing component is provided inside the waterproof housing 1;

[0046] A card plate 8 is provided at the bottom of the installation frame 3;

[0047] A mounting groove 26 is provided at one end of the waterproof shell 1, and a third sealing ring 15 is fixedly connected inside the mounting groove 26. A second sealing groove 16 is provided on an outer wall of one side of the connecting seat 2, and the third sealing ring 15 cooperates with the second sealing groove 16. When it is necessary to waterproof the outside of the mounting frame 3, one end of the waterproof shell 1 can be aligned with the connecting seat 2 first. At the same time, the third sealing ring 15 fixed inside the mounting groove 26 on one side of the waterproof shell 1 will be clamped in the second sealing groove 16 on one side of the connecting seat 2, thereby achieving sealing and waterproofing of the rear end of the waterproof shell 1.

[0048] Preferably, the end of the waterproof shell 1 away from the installation groove 26 is fixedly connected to the extension seat 5, and the outer wall of the extension seat 5 is provided with a first sealing groove 13, the number of the first sealing grooves 13 is two groups, and the interior of the two groups of first sealing grooves 13 are clamped with second sealing rings 14, the number of the second sealing rings 14 is two groups, and one side of the second sealing ring 14 is provided with an integrally formed first sealing ring 4, the specification of the first sealing ring 4 is larger than the specification of the waterproof shell 1, and the first sealing ring 4 is matched with the fixed seat 28. During the installation process, the outer wall of the extension seat 5 located at the end of the connector is provided with the first sealing ring 4, and the specification of the first sealing ring 4 is larger than the specification of the waterproof shell 1, so that it can better fit with the fixed seat 28 in the electrical equipment, thereby achieving a good end waterproof effect.

[0049] Preferably, an elastic strip 30 is provided on one side of the second sealing ring 14, and the cross-section of the elastic strip 30 is arc-shaped. The circumferential outer wall of the elastic strip 30 is fixedly connected with a protrusion portion 29. The number of the protrusion portions 29 is two groups. The circumferential outer walls of the two groups of protrusion portions 29 and the elastic strip 30 are in contact with the outer wall of one side of the first sealing ring 4. The elastic strip 30 and the protrusion portion 29 arranged in the middle of the two groups of second sealing rings 14 can play a good supporting role, ensuring that the first sealing ring 4 can be better fitted and installed with the fixing seat 28.

[0050] Preferably, the locking assembly includes a circular hole 32 opened on one side of the connecting seat 2, a threaded hole 33 is opened on one end of the waterproof shell 1 with the mounting groove 26, a fixing bolt 12 is connected to the internal thread of the threaded hole 33, one end of the fixing bolt 12 passes through the inside of the circular hole 32, a movable groove 34 is opened on the inner wall of one side of the waterproof shell 1, and the movable groove 34 is connected to the threaded hole 33. By rotating the fixing bolt 12 to engage with the threaded hole 33, the waterproof shell 1 and the connecting seat 2 are locked and fixed, ensuring that the waterproof shell 1 can be locked and fixed while waterproofing and sealing the rear end of the connecting seat 2.

[0051] Preferably, a fixing groove is opened on the inner wall of one side of the waterproof shell 1, and a fourth sealing ring 23 is fixedly connected to the inside of the fixing groove. A sealing seat 17 is fixedly connected to the outer wall of the mounting frame 3. The fourth sealing ring 23 cooperates with the sealing seat 17. Through the cooperation between the fourth sealing ring 23 and the sealing seat 17, effective waterproofing of the front end of the waterproof shell 1 can be achieved.

[0052] Preferably, the outer walls of the four sides of the fourth sealing ring 23 are fixedly connected with rubber rings 24, and the rubber ring 24 and one side of the fourth sealing ring 23 are surrounded by a rectangular groove 25. The inner walls of the four sides of the waterproof shell 1 are provided with a receiving groove 27, and one side of the rubber ring 24 is located inside the receiving groove 27. The number of rubber rings 24 located on the upper and lower sides of the fourth sealing ring 23 is two groups, and the two groups of rubber rings 24 are symmetrically distributed along the center line of the fourth sealing ring 23. The number of rubber rings 24 located on the left and right sides of the fourth sealing ring 23 is one group. Since the length of the upper and lower sides of the fourth sealing ring 23 is greater than that of the left and right sides, by arranging two groups of rubber rings 24 on the upper and lower sides of the fourth sealing ring 23, a good pressurizing effect can be achieved.

[0053] Preferably, the sealing assembly includes a spring 20 fixedly connected to the inner wall of one side of the movable groove 34, one end of the spring 20 away from the inner wall of the movable groove 34 is fixedly connected to the vertical plate 18, one end of the vertical plate 18 is fixedly connected to the pressure rod 19, and one end of the pressure rod 19 away from the vertical plate 18 is fixedly connected to the head 22, the cross-section of the head 22 is an isosceles trapezoid, one end of the head 22 is inserted into the interior of the rectangular groove 25, the inner wall of the waterproof shell 1 is fixedly connected to the guide seat 21, the pressure rod 19 is slidably connected to the guide seat 21, and a through groove 31 is opened on the inner wall of one side of the sealing seat 17, and the through groove 31 is adapted to the head 22. When the staff rotates the fixing bolt 12, one end of the fixing bolt 12 will gradually move toward the inside of the movable groove 34, and when the end of the fixing bolt 12 contacts one side of the vertical plate 18 and continues to rotate It will be moved in the direction close to the bottom of the movable groove 34. During the movement of the vertical plate 18, the pressure rod 19 can be driven to move as a whole. At the same time, a head 22 is fixed to the side of the pressure rod 19 away from the vertical plate 18. Since the diameter of the end of the head 22 is larger than the inner diameter of the rectangular groove 25, and the cross-section of the head 22 is an isosceles trapezoid, as the head 22 is continuously inserted, its two sides will gradually squeeze the rubber ring 24 and the fourth sealing ring 23, so that the rubber ring 24 can be pressed against the inner wall of the waterproof shell 1, and the fourth sealing ring 23 will be pressed against the inner wall of one side of the sealing seat 17, so that the fourth sealing ring 23 can be pressed to a certain extent while locking the waterproof shell 1, so that the fourth sealing ring 23 can be more closely fitted to the sealing seat 17 and the fixed groove, thereby ensuring the waterproof performance of the front end of the waterproof shell 1.

[0054] In summary, with the aid of the above technical solution of the present invention, when it is necessary to waterproof the outside of the installation frame 3, one end of the waterproof shell 1 can be aligned with the connecting seat 2 first. At the same time, the third sealing ring 15 fixed inside the mounting groove 26 on one side of the waterproof shell 1 will be clamped in the second sealing groove 16 on one side of the connecting seat 2, thereby achieving sealing and waterproofing of the rear end of the waterproof shell 1. After the waterproof shell 1 is sleeved on the outer wall of the installation frame 3, the staff passes one end of the fixing bolt 12 through the inside of the circular hole 32, and then rotates the fixing bolt 12 to make it mesh with the threaded hole 33, thereby achieving the waterproof shell 1 and the connecting seat. 2, ensures that the waterproof shell 1 can be locked and fixed while waterproofing the rear end of the connecting seat 2, and when the staff rotates the fixing bolt 12, one end of the fixing bolt 12 will gradually move into the movable groove 34, and when the end of the fixing bolt 12 contacts one side of the vertical plate 18, it will continue to rotate to move it toward the bottom of the movable groove 34, and in the process of the vertical plate 18 moving, it can drive the pressure rod 19 to move as a whole, and at the same time, a head 22 is fixed to the side of the pressure rod 19 away from the vertical plate 18. Since the diameter of the end of the head 22 is larger than The inner diameter of the rectangular groove 25 is 1.5 mm, and the cross section of the top head 22 is an isosceles trapezoid. As the top head 22 is continuously inserted, its two sides will gradually squeeze the rubber ring 24 and the fourth sealing ring 23, so that the rubber ring 24 can be pressed against the inner wall of the waterproof shell 1, and the fourth sealing ring 23 will be pressed against the inner wall of one side of the sealing seat 17, so that the fourth sealing ring 23 can be pressed to a certain extent while locking the waterproof shell 1, so that the fourth sealing ring 23 can be more closely fitted to the sealing seat 17 and the fixing groove, thereby ensuring the waterproof performance of the front end of the waterproof shell 1. At the same time, by setting a The extension seat 5 can be better installed in conjunction with the electrical equipment, and during the installation process, the outer wall of the extension seat 5 located at the end of the connector is provided with a first sealing ring 4, and at the same time, the specification of the first sealing ring 4 is larger than the specification of the waterproof shell 1, so that it can better fit with the fixed seat 28 in the electrical equipment, and achieve a good end waterproof effect, and when the first sealing ring 4 cooperates with the fixed seat 28, the elastic strip 30 and the protrusion 29 arranged in the middle of the two groups of second sealing rings 14 can play a good supporting role, ensuring that the first sealing ring 4 can be better fitted with the fixed seat 28 for installation.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A USB connector with waterproof function, comprising a mounting frame (3), characterized in that: One side of the installation frame (3) is fixedly connected to a base (9), one side of the base (9) is plugged with metal sheets (11) distributed at equal distances, one side of the base (9) is provided with a slot (10), one side of the metal sheet (11) is snap-fitted into the inside of the slot (10), a square slot (6) is provided on the inner wall of the bottom of the installation frame (3), and an elastic sheet (7) is arranged inside the square slot (6); The outer wall of the installation frame (3) is fixedly connected to a connection seat (2), and a waterproof shell (1) is provided on one side of the connection seat (2); A locking assembly for fixing the waterproof housing (1) is provided on one side of the connecting seat (2); A sealing component is provided inside the waterproof shell (1); A card plate (8) is provided at the bottom of the installation frame (3); A mounting groove (26) is provided at one end of the waterproof shell (1), a third sealing ring (15) is fixedly connected inside the mounting groove (26), a second sealing groove (16) is provided on an outer wall of one side of the connecting seat (2), and the third sealing ring (15) cooperates with the second sealing groove (16).

2. A USB connector with waterproof function according to claim 1, characterized in that: An extension seat (5) is fixedly connected to one end of the waterproof shell (1) away from the installation groove (26); a first sealing groove (13) is provided on the outer wall of the extension seat (5); the first sealing groove (13) is provided in two groups; a second sealing ring (14) is clamped inside the two groups of the first sealing grooves (13); the second sealing ring (14) is provided in two groups; an integrally formed first sealing ring (4) is provided on one side of the second sealing ring (14); the specification of the first sealing ring (4) is larger than that of the waterproof shell (1); the first sealing ring (4) is matched with the fixing seat (28).

3. A USB connector with waterproof function according to claim 2, characterized in that: An elastic strip (30) is provided on one side of the second sealing ring (14); the cross section of the elastic strip (30) is arc-shaped; and a convex block portion (29) is fixedly connected to the circumferential outer wall of the elastic strip (30).

4. A USB connector with waterproof function according to claim 3, characterized in that: The number of the protrusions (29) is two groups, and the circumferential outer walls of the two groups of protrusions (29) and the elastic strips (30) are in contact with the outer wall of one side of the first sealing ring (4).

5. The USB connector with waterproof function according to claim 4, characterized in that: The locking assembly comprises a circular hole (32) formed on one side of the connecting seat (2); one end of the waterproof housing (1) having the mounting groove (26) is provided with a threaded hole (33); the internal thread of the threaded hole (33) is connected to a fixing bolt (12); one end of the fixing bolt (12) passes through the inside of the circular hole (32).

6. The USB connector with waterproof function according to claim 5, characterized in that: A movable groove (34) is provided on an inner wall of one side of the waterproof shell (1), and the movable groove (34) is connected to the threaded hole (33).

7. A USB connector with waterproof function according to claim 6, characterized in that: A fixing groove is provided on the inner wall of one side of the waterproof shell (1), a fourth sealing ring (23) is fixedly connected inside the fixing groove, a sealing seat (17) is fixedly connected to the outer wall of the installation frame (3), and the fourth sealing ring (23) cooperates with the sealing seat (17).

8. The USB connector with waterproof function according to claim 7, characterized in that: The outer walls of the four sides of the fourth sealing ring (23) are fixedly connected with rubber rings (24), and the rubber ring (24) and one side of the fourth sealing ring (23) form a rectangular groove (25). The inner walls of the four sides of the waterproof shell (1) are provided with receiving grooves (27), and one side of the rubber ring (24) is located inside the receiving groove (27).

9. The USB connector with waterproof function according to claim 8, characterized in that: The number of rubber rings (24) located on the upper and lower sides of the fourth sealing ring (23) is two groups, and the two groups of rubber rings (24) are symmetrically distributed along the center line of the fourth sealing ring (23), and the number of rubber rings (24) located on the left and right sides of the fourth sealing ring (23) is one group.

10. The USB connector with waterproof function according to claim 9, characterized in that: The sealing assembly comprises a spring (20) fixedly connected to the inner wall of one side of the movable groove (34); one end of the spring (20) away from the inner wall of the movable groove (34) is fixedly connected to a vertical plate (18); one end of the vertical plate (18) is fixedly connected to a pressure rod (19); one end of the pressure rod (19) away from the vertical plate (18) is fixedly connected to a top head (22); the cross section of the top head (22) is an isosceles trapezoid; one end of the top head (22) is inserted into the interior of the rectangular groove (25); the inner wall of the waterproof shell (1) is fixedly connected to a guide seat (21); the pressure rod (19) is slidably connected to the guide seat (21); a through groove (31) is provided on the inner wall of one side of the sealing seat (17); the through groove (31) is adapted to the top head (22).

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