A USB connector with waterproof function

Abstract

The present invention discloses a USB connector with a waterproof function, which relates to the technical field of USB connectors and includes an installation frame. One side of the installation frame is fixedly connected to a base. A plurality of metal sheets are inserted into one side of the base at equal intervals. A card slot is formed on one side of the base, and one side of the metal sheet is clamped inside the card slot. A square groove is formed on the inner wall of the bottom of the installation frame, and an elastic sheet is arranged inside the square groove. A connection seat is fixedly connected to the outer wall of the installation frame, and a waterproof shell is arranged on one side of the connection seat. In the present invention, the rubber ring can be pressed tightly against the inner wall of the waterproof shell, and the fourth sealing ring will be pressed tightly against the inner wall of one side of the sealing seat, realizing a certain pressurizing effect on the fourth sealing ring while locking the waterproof shell, enabling the fourth sealing ring to fit more tightly against the sealing seat and the fixing groove, thereby ensuring the waterproof performance of the front end of the waterproof shell.

Description

Technical Field

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

[0002] A USB connector is a commonly used electronic connector for data transmission and charging between devices and hosts (such as computers, mobile phones, audio devices, etc.). Since a USB connector is an electronic connector, the waterproof performance after its installation determines the applicable range of the USB connector in electronic devices. The better the waterproof performance of the USB connector, the wider its applicable range, which can effectively avoid the situation where water droplets enter the internal circuit board of the electronic device from the USB connector when the electronic device accidentally comes into contact with water.

[0003] After retrieval, a Chinese utility model patent with the publication number CN206712114U discloses a waterproof USB connector, which includes a main housing and an outer cover. The outer cover is fixedly arranged at one end of the main housing, and an opening is formed on the outer cover. A USB connector and a PCB board are arranged in the main housing, and the USB connector is matched and arranged at the opening; the USB connector is provided with a USB connector, a metal housing for accommodating the USB connector, and a waterproof sleeve sleeved on the metal housing. The USB connector includes an integrally formed insulating body and terminals. The front end of the waterproof sleeve is closely attached to the metal housing, and the end of the waterproof sleeve covers the end of the insulating body.

[0004] Based on the existing situation, the above patent has the following deficiencies: This USB connector only achieves waterproofing by sleeving a waterproof sleeve on the outer surface of the metal housing, and its waterproof effect is poor. In an environment with excessive water pressure (such as a deep water area), it is easy to generate a gap between the waterproof sleeve and the outer surface of the metal housing, resulting in water flowing into the PCB board at the other end of the USB connector from the gap, and in severe cases, the electrical appliance will be damaged by water ingress. Therefore, there is an urgent need for a USB connector with a waterproof function 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 related art.

[0006] The technical solution of the present invention is realized as follows:

[0007] A USB connector with a waterproof function includes a mounting frame. One side of the mounting frame is fixedly connected with a base. A plurality of metal sheets are inserted on one side of the base at equal intervals. A card slot is formed on one side of the base, and one side of the metal sheet is clamped inside the card slot. A square slot is formed on the bottom inner wall of the mounting frame, and an elastic sheet is arranged inside the square slot;

[0008] The outer wall of the installation frame is fixedly connected with a connecting seat, and a waterproof shell is arranged on one side of the connecting seat;

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

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

[0011] A clamping plate is arranged at the bottom of the installation frame;

[0012] An installation groove is opened at one end of the waterproof shell, a third sealing ring is fixedly connected inside the installation groove, a second sealing groove is opened on the outer wall of one side of the connecting seat, and the third sealing ring is matched with the second sealing groove. When it is necessary to waterproof the outside of the installation frame, the 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, realizing the sealing and waterproofing of the rear end of the waterproof shell.

[0013] Further, an extension seat is fixedly connected to the end of the waterproof shell away from the installation groove. A first sealing groove is opened on the outer wall of the extension seat, and the number of the first sealing grooves is two groups. Two groups of second sealing rings are clamped inside the two groups of first sealing grooves. The number of the second sealing rings is two groups. A first sealing ring is integrally formed on one side of the second sealing ring. The specification of the first sealing ring is larger than that of the waterproof shell. The first sealing ring is matched 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] Further, an elastic strip is arranged on one side of the second sealing ring. The cross-section of the elastic strip is arc-shaped, and a convex block part 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 better fit and install with the fixing seat.

[0015] Further, the number of the convex block parts is two groups, and the circumferential outer walls of the two groups of convex block parts and the elastic strip are all in contact with the outer wall of one side of the first sealing ring.

[0016] Further, the locking component includes a round hole opened on one side of the connecting seat, a threaded hole is opened at the end of the waterproof shell where the installation groove is located, a fixing bolt is threadedly connected inside the threaded hole, and one end of the fixing bolt passes through the inside of the round hole, realizing the locking and fixing between the waterproof shell and the connecting seat, ensuring that the waterproof shell can be locked and fixed while waterproofing and sealing the rear end of the connecting seat.

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

[0018] Further, a fixing groove is formed in the 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 the outer wall of the mounting frame, and the fourth sealing ring is matched with the sealing seat.

[0019] Further, rubber rings are fixedly connected to the outer walls of the four sides of the fourth sealing ring. A rectangular groove is formed by the rubber ring and one side of the fourth sealing ring. Receiving grooves are formed in the inner walls of the four sides of the waterproof shell, and one side of the rubber ring is located inside the receiving groove.

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

[0021] Further, the sealing assembly includes a spring fixedly connected to the inner wall of one side of the movable groove. One 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 pressing rod. One end of the pressing 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 rectangular groove. A guiding seat is fixedly connected to the inner wall of the waterproof shell. The pressing rod is slidably connected to the guiding seat. A through groove is formed in the inner wall of one side of the sealing seat. 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 tightly against the inner wall of the waterproof shell, and the fourth sealing ring will be pressed tightly against the inner wall of one side of the sealing seat, realizing a certain pressing effect on the fourth sealing ring while locking the waterproof shell, so that the fourth sealing ring can fit more tightly with the sealing seat and the fixing groove, thereby ensuring the waterproof performance of the front end of the waterproof shell.

[0022] Advantages of the present invention:

[0023] A USB connector with a waterproof function provided by the present invention, by setting 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 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, realizing the sealing and waterproofing of the rear end of the waterproof shell. After the waterproof shell is sleeved on the outer wall of the mounting frame, the staff passes one end of the fixing bolt through the round hole, and then rotates the fixing bolt to make it engage with the threaded hole, thereby realizing the locking and fixing between the waterproof shell and the connecting seat, ensuring that the waterproof shell can be locked and fixed while waterproofing and sealing the rear end of the connecting seat.

[0024] A USB connector with a waterproof function provided by the present invention, through the arranged locking component and sealing component, during the process of a worker rotating the fixing bolt, one end of the fixing bolt will gradually move towards the inside of the moving slot. When the end of the fixing bolt contacts one side of the vertical plate and continues to rotate, it will move the vertical plate towards the bottom of the moving slot. During the movement of the vertical plate, the whole pressure rod can be driven to move. 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 slot, 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 one side inner wall of the sealing seat, realizing that while locking the waterproof shell, a certain pressing effect can be exerted on the fourth sealing ring, making the fourth sealing ring fit more tightly with the sealing seat and the fixing slot, thereby ensuring the waterproof performance of the front end of the waterproof shell.

[0025] A USB connector with a waterproof function provided by the present invention is provided with an extension seat at the end of the waterproof shell, which can better cooperate with electrical equipment for installation. During the installation process, a first sealing ring is arranged on the outer wall of the extension seat at the end of the connector. At the same time, the specification of the first sealing ring is larger than that of the waterproof shell, so that it can better fit with the fixing seat in the electrical equipment, achieving a good end waterproof effect. When the first sealing ring cooperates with the fixing seat, the elastic strip and the convex block part arranged in the middle of the two second sealing rings can play a good supporting role, ensuring that the first sealing ring can be better fitted and installed with the fixing seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the following described drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[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 overall back structure after the present invention is disassembled.

[0030] Figure 4 For the present invention Figure 3 It is an enlarged schematic diagram of part A in the present invention.

[0031] Figure 5Schematic front view of the whole disassembled structure of the present invention.

[0032] Figure 6 Schematic structure diagram after the present invention is installed with the fixed seat.

[0033] Figure 7 Schematic half-sectional view of the whole structure of the present invention.

[0034] Figure 8 For the present invention Figure 7 Enlarged schematic structure diagram at position B in the present invention.

[0035] Figure 9 For the present invention Figure 7 Enlarged schematic structure diagram at position C in the present invention.

[0036] In the figure:

[0037] 1. Waterproof shell; 2. Connecting seat; 3. Installation frame; 4. First sealing ring; 5. Extension seat; 6. Square groove; 7. Elastic sheet; 8. Clamping plate; 9. Base; 10. Card slot; 11. Metal sheet; 12. Fixed bolt; 13. First sealing groove; 14. Second sealing ring; 15. Third sealing ring; 16. Second sealing groove; 17. Sealing seat; 18. Vertical plate; 19. Pressing rod; 20. Spring; 21. Guide seat; 22. Top head; 23. Fourth sealing ring; 24. Rubber ring; 25. Rectangular groove; 26. Installation groove; 27. Storage groove; 28. Fixed seat; 29. Convex part; 30. Elastic strip; 31. Through groove; 32. Round hole; 33. Threaded hole; 34. Movable groove. Detailed implementation manners

[0038] The technical solutions of this patent will be further described in detail below in conjunction with the specific implementation manners.

[0039] The embodiments of this patent will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are only used to explain this patent and should not be construed as a limitation of this patent.

[0040] In the description of this patent, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is 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 should not be construed as a limitation of this patent.

[0041] In the description of this patent, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "linkage", and "setting" should be understood in a broad sense. For example, it can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0042] Please refer to Figures 1 - 9 , a USB connector with a waterproof function, including an installation frame 3. One side of the installation frame 3 is fixedly connected to a base 9. A plurality of metal sheets 11 are inserted on one side of the base 9 at equal intervals. A card slot 10 is opened on one side of the base 9. One side of the metal sheet 11 is clamped inside the card slot 10. A square slot 6 is opened on the bottom inner wall of the installation frame 3. An elastic sheet 7 is arranged inside the square slot 6;

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

[0044] A locking component for fixing the waterproof shell 1 is arranged on one side of the connection seat 2;

[0045] A sealing component is arranged inside the waterproof shell 1;

[0046] A clamping plate 8 is arranged at the bottom of the installation frame 3;

[0047] An installation groove 26 is opened at one end of the waterproof shell 1. A third sealing ring 15 is fixedly connected inside the installation groove 26. A second sealing groove 16 is opened on the outer wall of one side of the connection seat 2. The third sealing ring 15 is matched with the second sealing groove 16. When it is necessary to waterproof the outside of the installation frame 3, the end of the waterproof shell 1 can be aligned with the connection seat 2 first. At the same time, the third sealing ring 15 fixed inside the installation groove 26 on one side of the waterproof shell 1 will be clamped inside the second sealing groove 16 on one side of the connection seat 2, realizing the sealing and waterproofing of the rear end of the waterproof shell 1.

[0048] Preferably, an extension seat 5 is fixedly connected to the end of the waterproof shell 1 away from the installation groove 26. A first sealing groove 13 is opened on the outer wall of the extension seat 5. The number of the first sealing grooves 13 is two groups. Two second sealing rings 14 are clamped inside each of the two groups of first sealing grooves 13. The number of the second sealing rings 14 is two groups. A first sealing ring 4 is integrally formed 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. During the installation process, the first sealing ring 4 is arranged on the outer wall of the extension seat 5 at the end of the connector. At the same time, the specification of the first sealing ring 4 is larger than that of the waterproof shell 1, so that it can better fit with the fixing seat 28 in the electrical equipment and achieve a good end waterproof effect.

[0049] Preferably, 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. A convex block portion 29 is fixedly connected to the circumferential outer wall of the elastic strip 30. The number of the convex block portions 29 is two groups. The circumferential outer walls of the two groups of convex block portions 29 and the elastic strip 30 are all in contact with the outer wall of one side of the first sealing ring 4. The elastic strip 30 and the convex block portions 29 provided 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 fixed seat 28.

[0050] Preferably, the locking assembly includes a circular hole 32 opened on one side of the connecting seat 2. One end of the waterproof shell 1 where the installation groove 26 is opened is provided with a threaded hole 33. A fixing bolt 12 is threadedly connected inside 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. The movable groove 34 communicates with the threaded hole 33. By rotating the fixing bolt 12 to engage it with the threaded hole 33, the locking and fixing between the waterproof shell 1 and the connecting seat 2 is realized, 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. 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. The fourth sealing ring 23 is matched with the sealing seat 17. Through the cooperation between the fourth sealing ring 23 and the sealing seat 17, effective waterproofing at the front end of the waterproof shell 1 can be achieved.

[0052] Preferably, rubber rings 24 are fixedly connected to the outer walls on the four sides of the fourth sealing ring 23. A rectangular groove 25 is formed by the rubber rings 24 and one side of the fourth sealing ring 23. Receiving grooves 27 are opened on the inner walls on the four sides of the waterproof shell 1. One side of the rubber ring 24 is located inside the receiving groove 27. The number of rubber rings 24 on the upper and lower sides of the fourth sealing ring 23 is two groups each. The two groups of rubber rings 24 are symmetrically distributed along the midline of the fourth sealing ring 23. The number of rubber rings 24 on the left and right sides of the fourth sealing ring 2 is one group each. Since the lengths of the upper and lower sides of the fourth sealing ring 23 are greater than those of the left and right sides, by providing two groups of rubber rings 24 on both the upper and lower sides of the fourth sealing ring 23, a good pressing 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 a vertical plate 18. One end of the vertical plate 18 is fixedly connected to a pressing rod 19. One end of the pressing 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. A guiding seat 21 is fixedly connected to the inner wall of the waterproof shell 1. The pressing rod 19 is slidably connected to the guiding seat 21. A through groove 31 is formed in the inner wall of one side of the sealing seat 17. The through groove 31 is adapted to the top head 22. During the process of the staff rotating the fixing bolt 12, one end of the fixing bolt 12 will gradually move into the movable groove 34. When the end of the fixing bolt 12 comes into contact with one side of the vertical plate 18 and continues to rotate, it will move the vertical plate 18 in the direction close to the bottom of the movable groove 34. During the movement of the vertical plate 18, the whole pressing rod 19 can be driven to move. At the same time, a top head 22 is fixed on the side of the pressing rod 19 away from the vertical plate 18. Since the diameter of the end of the top head 22 is larger than the inner diameter of the rectangular groove 25 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, realizing the pressurizing effect on the fourth sealing ring 23 while locking the waterproof shell 1, so that the fourth sealing ring 23 can fit more closely with the sealing seat 17 and the fixing groove, thereby ensuring the waterproof performance of the front end of the waterproof shell 1.

[0054] In summary, by means of the above technical solutions of the present invention, when it is necessary to waterproof the outside of the mounting frame 3, one end of the waterproof shell 1 can be first aligned with the connecting seat 2. 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, realizing the waterproofing of the rear end of the waterproof shell 1. After the waterproof shell 1 is sleeved on the outer wall of the mounting frame 3, the staff passes one end of the fixing bolt 12 through the round hole 32, and then rotates the fixing bolt 12 to make it engage with the threaded hole 33, thereby realizing the locking and fixing between the waterproof shell 1 and the connecting seat 2, ensuring that the waterproof shell 1 can not only waterproof and seal the rear end of the connecting seat 2 but also be locked and fixed. Moreover, during the process of the staff rotating the fixing bolt 12, one end of the fixing bolt 12 will gradually move into the moving groove 34. When the end of the fixing bolt 12 contacts one side of the vertical plate 18 and continues to rotate, it will move the vertical plate 18 towards the bottom of the moving groove 34. During the movement of the vertical plate 18, the whole pressure rod 19 can be driven to move. At the same time, a top head 22 is fixed on the side of the pressure rod 19 away from the vertical plate 18. Since the diameter of the end of the top head 22 is larger than the inner diameter of the rectangular groove 25 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 tightly against the inner wall of the waterproof shell 1, and the fourth sealing ring 23 will be pressed tightly against one side inner wall of the sealing seat 17, realizing a certain pressing effect on the fourth sealing ring 23 while locking the waterproof shell 1, making the fourth sealing ring 23 fit more tightly with 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 providing an extension seat 5 at the end of the waterproof shell 1, it can better cooperate with the electrical equipment for installation. During the installation process, a first sealing ring 4 is provided on the outer wall of the extension seat 5 at the end of the connector, and the specification of the first sealing ring 4 is larger than that of the waterproof shell 1, so that it can better fit with the fixing seat 28 in the electrical equipment, achieving a good end waterproof effect. And when the first sealing ring 4 cooperates with the fixing seat 28, the elastic strip 30 and the convex block part 29 provided in the middle of the two 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.

[0055] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A USB connector with a waterproof function, including an installation frame (3), characterized in that, One side of the mounting frame (3) is fixedly connected to a base (9). A plurality of metal sheets (11) are inserted into one side of the base (9) at equidistant intervals. A card slot (10) is formed in one side of the base (9). One side of the metal sheet (11) is clamped inside the card slot (10). A square groove (6) is formed in the bottom inner wall of the mounting frame (3). An elastic sheet (7) is arranged inside the square groove (6). A connecting seat (2) is fixedly connected to the outer wall of the mounting frame (3). A waterproof shell (1) is arranged on one side of the connecting seat (2). A locking assembly for fixing the waterproof shell (1) is arranged on one side of the connecting seat (2). A sealing assembly is arranged inside the waterproof shell (1). A clamping plate (8) is arranged at the bottom of the mounting frame (3). An installation groove (26) is formed at one end of the waterproof shell (1). A third sealing ring (15) is fixedly connected inside the installation groove (26). A second sealing groove (16) is formed in the outer wall of one side of the connecting seat (2). The third sealing ring (15) is matched with the second sealing groove (16). The locking assembly includes a round hole (32) formed in one side of the connecting seat (2). A threaded hole (33) is formed at the end of the waterproof shell (1) where the installation groove (26) is located. A fixing bolt (12) is threadedly connected inside the threaded hole (33). One end of the fixing bolt (12) passes through the inside of the round hole (32). A moving groove (34) is formed in the inner wall of one side of the waterproof shell (1). The moving groove (34) is communicated with the threaded hole (33). A fixing groove is formed in 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 mounting frame (3). The fourth sealing ring (23) is matched with the sealing seat (17). Rubber rings (24) are fixedly connected to the outer walls of the four sides of the fourth sealing ring (23). A rectangular groove (25) is formed by enclosing the rubber rings (24) and one side of the fourth sealing ring (23). The sealing assembly includes a spring (20) fixedly connected to the inner wall of one side of the moving groove (34). One end of the spring (20) far away from the inner wall of the moving groove (34) is fixedly connected to a vertical plate (18). One end of the vertical plate (18) is fixedly connected to a pressing rod (19). One end of the pressing rod (19) far 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 inside of the rectangular groove (25). A guiding seat (21) is fixedly connected to the inner wall of the waterproof shell (1). The pressing rod (19) is slidably connected to the guiding seat (21). A through groove (31) is formed in the inner wall of one side of the sealing seat (17). The through groove (31) is adapted to the top head (22).

2. The waterproof USB connector according to claim 1, wherein One end of the waterproof shell (1) away from the mounting groove (26) is fixedly connected with an extension seat (5). A first sealing groove (13) is formed in the outer wall of the extension seat (5). The number of the first sealing grooves (13) is two groups. Second sealing rings (14) are clamped inside the two groups of the first sealing grooves (13). The number of the second sealing rings (14) is two groups. A first sealing ring (4) is integrally formed 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 a fixed seat (28).

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

4. The USB connector with a waterproof function according to claim 3, characterized in that, The number of the convex block portions (29) is two groups. The circumferential outer walls of the two groups of the convex block portions (29) and the elastic strip (30) are all in contact with one side outer wall of the first sealing ring (4).

5. The USB connector with a waterproof function according to claim 4, wherein Receiving grooves (27) are formed in the inner walls of the four sides of the waterproof shell (1). One side of the rubber ring (24) is located inside the receiving groove (27).

6. The waterproof USB connector according to claim 5, wherein, The number of the rubber rings (24) on the upper and lower sides of the fourth sealing ring (23) is two groups. The two groups of the rubber rings (24) are symmetrically distributed along the midline of the fourth sealing ring (23). The number of the rubber rings (24) on the left and right sides of the fourth sealing ring (23) is one group.

Images