USB socket supporting positive and negative installation

Abstract

A USB socket supporting positive and negative installation comprises a power supply terminal, a grounding terminal and an insulating body which fixedly holds the power supply terminal and the grounding terminal into a whole, the power supply terminal comprises a positive electrode connecting part and a positive electrode contact part which is formed by forward extension, the grounding terminal comprises a negative electrode connecting part and a negative electrode contact part which is formed by forward extension, and the positive electrode connecting part is connected with the negative electrode connecting part. The insulation body comprises a wiring part located at the rear end and a butt joint tongue part formed by forward extension, the upper side and the lower side of the wiring part are symmetrically arranged, and the upper surface and the lower surface of the positive electrode connecting part and the upper surface and the lower surface of the negative electrode connecting part are exposed out of the upper side and the lower side of the wiring part. When the USB socket supporting positive and negative installation is installed, the installation direction does not need to be selected.

Description

Technical Field

[0001] The present application relates to the field of electrical connectors, and in particular to a USB socket that supports forward and reverse installation. Background Art

[0002] The Type C interface is currently widely used in all walks of life, from early mobile phones, computers, etc., to small household appliances, such as shavers, small fans, electronic cigarettes and other electronic devices that require charging interfaces. However, different application scenarios have different functional requirements and cost requirements; and in the standard, the Type C interface includes 24 conductive terminals that are symmetrically arranged up and down, including a pair of ground terminals, a pair of power terminals, two pairs of high-frequency signal terminals and two pairs of conventional signal terminals compatible with USB2.0. In areas with high data transmission speed requirements and high charging function requirements, such as mobile phones and computers, product design generally needs to fully comply with the standards, and the manufacturing cost is correspondingly high. However, for some small household appliances that only require low-power charging functions, the cost of full-standard products is too high. As a result, some compatible interface but low-cost solutions have appeared on the market.

[0003] Patent application No. 202123141553.3 of the People's Republic of China is an interface product designed by the applicant for use in small household appliances and compatible with Type C charging function. The USB socket of this application includes at least one ground terminal, a power terminal, an insulating body that holds the ground terminal and the power terminal as one, an insulating shell that is integrally formed outside the insulating body and encloses a plug-in space, and a sealing ring assembled on the outer surface of the insulating shell. An annular groove is provided on the outer surface of the insulating shell, and the sealing ring is sleeved in the annular groove. When assembling the USB socket to the object, the sealing ring will be squeezed backward in the plug-in direction, which is prone to warping, thereby affecting the waterproof performance. The rear end of the insulating body is provided with a cable connection portion and extends downward to form a fixing portion. The USB socket only supports one-way assembly in electronic equipment, and the direction needs to be determined during assembly. Utility Model Content

[0004] In view of this, it is necessary to provide a USB socket that supports forward and reverse installation regardless of the installation direction.

[0005] In order to solve the above technical problems, the present application provides a USB socket that supports forward and reverse installation, including a power terminal, a ground terminal and an insulating body that holds the power terminal and the ground terminal as a whole, the power terminal including a positive pole connection portion and a positive pole contact portion extending forward, the ground terminal including a negative pole connection portion and a negative pole contact portion extending forward, the insulating body including a wiring portion located at the rear end and a docking tongue portion extending forward, the upper and lower sides of the wiring portion are symmetrically arranged, and the upper and lower surfaces of the positive pole connection portion and the negative pole connection portion are exposed at the upper and lower sides of the wiring portion.

[0006] Preferably, the upper surface of the wiring portion is recessed downward to form a pair of first wiring grooves, and the lower surface of the wiring portion is recessed upward to form a pair of second wiring grooves, the first wiring grooves and the second wiring grooves are symmetrically arranged, and the positive electrode connection portion and the negative electrode connection portion are at least partially exposed in the first wiring grooves and the second wiring grooves.

[0007] Preferably, the exposed parts of the positive electrode connecting part and the negative electrode connecting part are respectively penetrated with a positive electrode through-hole and a negative electrode through-hole, and the positive electrode through-hole and the negative electrode through-hole are used for core wires to pass through and then be fixed by welding.

[0008] Preferably, the USB socket also includes a steel sheet, the power terminal also includes a positive main body portion extending forward from the positive connecting portion, and a pair of the positive contact portions are formed by forking and extending from the front end of the positive main body portion; the grounding terminal also includes a negative connecting strip extending laterally from the rear end of the negative connecting portion to the other side of the positive connecting portion, two negative extension portions extending forward from the negative connecting strip and the negative connecting portion, and a pair of negative contact portions extending forward from the negative extension portion, and the positive contact portion and the negative contact portion are respectively provided with a positive bending portion and a negative bending portion at the rear ends so that the positive contact portion, the negative contact portion and the positive connecting portion and the negative connecting portion are on different horizontal planes.

[0009] Preferably, the insulating body also includes a first step formed on the front side of the wiring portion, a second step located in front of the first step, an extension portion extending forward from the second step, the docking tongue portion extending forward from the extension portion, and a wrapped portion formed between the first step and the second step.

[0010] Preferably, the positive electrode contact portion and the negative electrode contact portion are both exposed on one side surface of the docking tongue portion; or, one positive electrode contact portion and one negative electrode contact portion are exposed on one side surface of the docking tongue portion, and another positive electrode contact portion and another negative electrode contact portion are exposed on the other side surface of the docking tongue portion; the negative electrode extension portion and the positive electrode main body portion are both wrapped in the first step, the second step and the wrapped portion, and the positive electrode connecting portion and the negative electrode connecting portion are formed in the wiring portion.

[0011] Preferably, the wrapped portion includes a first part connected to the first step, a second part connected to the first part and the second step, the second part is penetrated by a flow hole from top to bottom, the USB socket also includes an insulating shell, the insulating shell includes a fixed end molded to wrap the wrapped portion and an outer peripheral wall extending forward from the fixed end to the periphery of the extension portion and the docking tongue portion, the outer peripheral wall is arranged to form a plug-in cavity for inserting a plug, and the fixed end fills the flow hole to connect the upper and lower sides into one.

[0012] Preferably, the USB socket also includes a sealing ring, an annular groove is provided on the outer surface of the outer peripheral wall of the insulating shell, the front wall of the annular groove is recessed forward to form a front bayonet, and a pressing flange is covered on the radial outer side of the front bayonet, the sealing ring includes a ring body inserted into the annular groove and a pressing protrusion protruding from the middle of the ring body along the radial outer side to form a pressing protrusion, the front end of the ring body is inserted forward into the front bayonet and is limited by the pressing flange.

[0013] Preferably, a notch is formed on the outer side of the front end of the ring body, and the pressing flange is pressed into the space where the notch is located.

[0014] Preferably, the annular groove includes a first annular groove and a second annular groove arranged along the plugging and unplugging direction, the first annular groove and the second annular groove are connected to form a connecting groove extending along the plugging and unplugging direction, the second annular groove is located in front of the first annular groove, the front bayonet is arranged on the front wall surface of the second annular groove, the sealing ring includes a first sealing ring sleeved in the first annular groove, a second sealing ring sleeved in the second annular groove and a ring connector accommodated in the connecting groove and connecting the first sealing ring and the second sealing ring, the first sealing ring and the second sealing ring both include a ring body and an extrusion protrusion, and the notch is opened on the front side of the ring body of the second sealing ring.

[0015] The USB socket supported by the present application has the wiring part at the rear end arranged into a vertically symmetrical structure. When assembling, there is no need to select a single direction for installation, which reduces the requirements for the assemblers and facilitates assembly line operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 This is a three-dimensional composite diagram of a USB socket supporting forward and reverse installation from a first perspective in the first embodiment of the present application;

[0018] Figure 2 This is a stereoscopic composite diagram of a USB socket supporting forward and reverse installation from a second viewing angle according to the first embodiment of the present application;

[0019] Figure 3 This is a three-dimensional exploded view of the first embodiment of the present application;

[0020] Figure 4 This is a three-dimensional diagram of a USB socket supporting forward and reverse installation after removing the insulating shell and the sealing ring in the first embodiment of the present application;

[0021] Figure 5 This is a three-dimensional assembly diagram of a conductive terminal group of a USB socket supporting forward and reverse installation according to the first embodiment of the present application;

[0022] Figure 6 For along Figure 1 A cross-sectional view taken along the dashed line AA shown;

[0023] Figure 7 This is a three-dimensional combination diagram of a USB socket supporting forward and reverse installation according to the second embodiment of the present application;

[0024] Figure 8 This is a three-dimensional exploded view of a USB socket supporting forward and reverse installation according to the second embodiment of the present application;

[0025] Fig. 9 This is a cross-sectional view of the USB socket sealing ring after separation that supports forward and reverse installation according to the second embodiment of the present application.

[0026] Description of Reference Numerals

[0027] Conductive terminal group-10; power terminal-11; positive electrode connection part-111; positive electrode through hole-112; positive electrode main body-113; through hole-114; positive electrode bending part-115; positive electrode contact part-116; thin end-117; ground terminal-12; negative electrode connection part-121; negative electrode through hole-122; negative electrode extension part-123; negative electrode connecting strip-124; negative electrode bending part-125; negative electrode contact part-126; steel sheet-13; steel sheet main body-131; through hole-132; buckle part-133; connecting part-14; insulating body-20; wiring part-21; first wiring slot-211; second Wiring slot 212; fixing portion 214; cavity 215; first step 22; wrapped portion 23; first portion 231; second portion 232; circulation hole 233; irregular groove 234; second step 24; extension portion 25; docking tongue 26; insulating shell 30; fixing end 31; peripheral wall 32; first annular groove 33; second annular groove 34; front snap-on socket 351; pressed flange 352; sealing ring 40; first sealing ring 41; second sealing ring 42; ring body 431; extrusion protrusion 432; notch 433; ring connector 44; plug-in space S. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of this application clearer, the technical solution of this application will be clearly and completely described below in combination with the specific embodiments of this application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of this application, not all of them.

[0029] Embodiment 1

[0030] Example 1 Please refer to Figures 1 to 6 As shown, the USB socket supporting forward and reverse installation of the first embodiment includes a conductive terminal set 10, an insulating body 20 holding the conductive terminal set 10 therein, an insulating shell 30 integrally formed outside the insulating body 20, and a sealing ring 40 sleeved outside the insulating shell 30.

[0031] Key References Figure 3 , Figure 5As shown, the conductive terminal group 10 includes a power terminal 11, a ground terminal 12 and a steel sheet 13. The power terminal 11 includes a positive electrode connection portion 111 located at the rear end, a positive electrode through-hole 112 penetrating the positive electrode connection portion 111 for the core wire to pass through for welding, a positive electrode main body 113 extending forward from the positive electrode connection portion 111, a through-hole 114 penetrating the positive electrode main body 113, and a pair of positive electrode contact portions 116 extending from the two sides of the front end of the positive electrode main body 113. The front side of the forked position at the front end of the positive electrode main body 113 is bent upward to form a positive electrode bending portion 115 so that the horizontal position of the positive electrode contact portion 116 is higher than that of the positive electrode main body 113.

[0032] The ground terminal 12 includes a negative electrode connection portion 121 located on one side of the positive electrode connection portion 111, a negative electrode through hole 122 penetrating the negative electrode connection portion 121 for the wire core to pass through for welding, a negative electrode connecting bar 124 extending from the rear end of the negative electrode connection portion 121 toward the positive electrode connection portion 111 and crossing the rear end of the positive electrode connection portion 111, a negative electrode extension portion 123 extending forward from the negative electrode connecting bar 124 and the negative electrode connection portion 121, and a negative electrode contact portion 126 extending forward from a pair of negative electrode extension portions 123. A negative electrode bending portion 125 is formed by bending upward between the negative electrode contact portion 126 and the negative electrode extension portion 123 so that the horizontal position of the negative electrode contact portion 126 is higher than that of the negative electrode extension portion 123 and the negative electrode connection portion 121. The pair of positive electrode contact parts 116 and the pair of negative electrode contact parts 126 are on the same horizontal plane, and the positive electrode connection part 111 and the negative electrode connection part 121 are on the same horizontal plane. The negative electrode connection bar 124 is located behind the positive electrode connection part 111, and the negative electrode extension part 123, the negative electrode connection bar 124 and the negative electrode connection part 121 surround the positive electrode connection part 111. The horizontal position of the negative electrode connection bar 123 is lower than the plane where the negative electrode connection part 121 and the positive electrode connection part 111 are located.

[0033] In another embodiment, one positive contact portion 116 of the power terminal 11 is bent upward, and the other positive contact portion 116 is bent downward; one negative contact portion 126 of the grounding terminal 12 is bent upward, and the other negative contact portion 126 is bent downward; one positive contact portion 116 and one negative contact portion 126 are on a first plane, and another positive contact portion 116 and another negative contact portion 126 are on a second plane, and the positive connection portion 111 and the negative connection portion 121 are located in the middle of the first plane and the second plane.

[0034] The ground terminal 12 and the power terminal 11 are stamped from the same metal plate. After stamping, the ground terminal 12 and the power terminal 11 are connected as one through a connecting portion 14. The connecting portion 14 can be provided at positions corresponding to the positive electrode main body 113 and the negative electrode extension portion 123.

[0035] The steel sheet 13 is placed below or above the negative electrode contact portion 126 , and includes a steel sheet body 131 , a tube through hole 132 penetrating the steel sheet body 131 , and a buckle portion 133 formed on the lateral outer side of the steel sheet body 131 .

[0036] In this embodiment, the power terminal 11 and the ground terminal 12 are made of copper alloy, and the steel sheet 13 is made of stainless steel. In another embodiment, if the charging current in the application scenario is very small and the heat management is low, the steel sheet 13 can be eliminated, and the power terminal 11 and the ground terminal 12 are directly made of stainless steel material, and a snap portion is stamped on the lateral outer side of the negative electrode contact portion 126, that is, the outer edge of the negative electrode contact portion 126 is bent downward or upward and then extended toward the lateral outer side.

[0037] Please continue reading Figure 3 , Figure 4 As shown, the insulating body 20 includes a connection portion 21 symmetrically arranged on both sides, a first step 22 formed on the front side of the connection portion 21, a second step 24 formed in front of the first step 22, an extension portion 25 formed by extending forward from the second step 24, a docking tongue portion 26 formed by extending forward from the extension portion 25, and a wrapped portion 23 formed between the first step 22 and the second step 24. In this embodiment, the wrapped portion 23 includes a first portion 231 formed by extending forward from the middle of the first step 22 and a second portion 232 extending forward from the first portion 231 and connected to the second step 232. The outer diameter of the first step 22 is greater than the outer diameter of the second step 24, and the outer diameter of the first portion 231 is consistent with the outer diameter of the second step 24. A plurality of flow holes 233 are provided in the middle of the second portion 232 for injection molding of the insulating housing 30 to facilitate plastic flow and enhance the holding force. At the same time, a plurality of irregular grooves 234 are also provided on the wrapped portion 23 to increase the holding force of the insulating housing 30.

[0038] In another embodiment, the wrapped portion 23 is omitted, the first step 22 and the second step 24 are connected as a whole only through the conductive terminal group 10, and then the space where the wrapped portion 23 is located is filled when the insulating shell 20 is injection molded.

[0039] The conductive terminal assembly 10 is integrally formed in the insulating body 20, the positive contact portion 116 and the negative contact portion 126 are exposed on the upper and / or lower surface of the docking tongue 26, and the buckle portion 133 of the steel sheet 13 is exposed on the lateral outer side of the docking tongue 26. The positive bent portion 115, the negative bent portion 125, the positive main body 113 and the negative extension portion 123 are all wrapped in the second step 24, the wrapped portion 23 and the first step 22.

[0040] Key References Figure 6 As shown, the upper and lower surfaces of the wiring portion 21 of the insulating body 20 are symmetrically arranged, and the positive connection portion 111 of the power terminal 11 and the negative connection portion 121 of the ground terminal 12 are wrapped in the wiring portion 21. The upper surface of the wiring portion 21 is recessed downward to form a pair of first wiring grooves 211, and the lower surface of the wiring portion 21 is recessed upward to form a pair of second wiring grooves 212. The upper and lower surfaces of the positive connection portion 111 and the negative connection portion 121 are at least partially exposed in the first wiring groove 211 and the second wiring groove 212, respectively, and the positive through hole 112 and the negative through hole 122 are located in the first wiring groove 211 and the second wiring groove 212. With such a design, when the USB socket of the present application is assembled on an object, it can be installed with either the upper side or the lower side facing the object, which is convenient for installation.

[0041] Key References Figures 3 to 6 As shown, the insulating shell 30 is integrally formed outside the insulating body 20. Specifically, the insulating shell 30 includes a fixed end 31 fixed outside the wrapped portion 23 and the second step 24 and an outer peripheral wall 32 extending forward from the fixed end 31 to the periphery of the extension portion 25 and the docking tongue portion 26, and the outer peripheral wall 32 is arranged to form a plug-in cavity S for inserting a plug.

[0042] The fixed end 31 passes through the flow hole 233 to keep the upper and lower parts as an integrated structure. The sealing ring 40 is sleeved on the outer peripheral wall 32 of the insulating shell 30 .

[0043] Embodiment 2

[0044] For Example 2 of this application, please refer to Figures 7 to 9 As shown, compared with the first embodiment, the difference is:

[0045] The structure of the wiring portion 21 of the insulating body 20 is inconsistent. The wiring portion 21 in this embodiment is an asymmetric structure, and the tail of the wiring portion 21 extends downward to form a fixing portion 214, and a cavity 215 is formed in front of the fixing portion 214 and below the wiring portion 21. The cavity 215 can be used for routing to be welded and connected with the positive connection portion 111 and the negative connection portion 121.

[0046] The outer peripheral wall 32 of the insulating housing 20 is provided with a first annular groove 33, a second annular groove 34, and a connecting groove 36 connecting the first annular groove 33 and the second annular groove 34. The second annular groove 34 and the first annular groove 33 are arranged front and back in the plugging and unplugging direction, and the connecting groove 36 extends along the plugging and unplugging direction and connects the first annular groove 33 and the second annular groove 34. The second annular groove 34 is located at the front side, and the front wall of the second annular groove 34 is recessed forward to form a front bayonet 351, and a pressing flange 352 covering the front bayonet 351 is formed on the radial outer side of the front bayonet 351.

[0047] The sealing ring 40 includes a first sealing ring 41 inserted into the first ring groove 33, a second sealing ring 42 inserted into the second ring groove 34, and a ring connector 43 connecting the first sealing ring 41 and the second sealing ring 42 and accommodated in the connecting groove 36. The first sealing ring 41 and the second sealing ring 42 both include a ring body 431 clamped in the first ring groove 33 and the second ring groove 34, and an extrusion protrusion 432 protruding from the middle of the ring body 431 along the radial outer side, and the extrusion protrusion 432 protrudes from the outer surface of the outer peripheral wall 32 to squeeze with the counterpart to achieve sealing. The outer side of the front end edge of the ring body 431 of the second sealing ring 42 is recessed toward the radial inner side to form a notch 433.

[0048] When the sealing ring 40 is sleeved on the insulating housing 30, the first sealing ring 41 and the second sealing ring 42 are respectively inserted into the first ring groove 33 and the second ring groove 34, wherein the front end of the ring body 431 of the second sealing ring 42 is inserted into the front clamping opening 351 of the second ring groove 34, and the pressing flange 352 is pressed into the space where the notch 433 is located to prevent the front end of the second sealing ring 42 from being squeezed and tilted when assembling the USB socket.

[0049] In other embodiments, the sealing ring 40 may be provided with only one sealing ring, and correspondingly only one ring groove 34 may be provided, and correspondingly the front bayonet 351 , the notch 433 and other structures may be provided to achieve the same effect.

[0050] The technical features of the second embodiment are applicable to the first embodiment, and the technical features of the first embodiment are also applicable to the second embodiment.

[0051] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0052] The above embodiments only express the preferred implementation of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A USB socket supporting forward and reverse installation, comprising a power terminal, a ground terminal and an insulating body that holds the power terminal and the ground terminal as one body, wherein the power terminal comprises a positive electrode connection portion and a positive electrode contact portion extending forward, the ground terminal comprises a negative electrode connection portion and a negative electrode contact portion extending forward, the insulating body comprises a wiring portion at the rear end and a docking tongue portion extending forward, characterized in that: The upper and lower sides of the wiring part are symmetrically arranged, and the upper and lower surfaces of the positive electrode connecting part and the negative electrode connecting part are exposed at the upper and lower sides of the wiring part.

2. The USB socket supporting forward and reverse installation as claimed in claim 1, characterized in that: The upper surface of the wiring portion is recessed downward to form a pair of first wiring grooves, and the lower surface of the wiring portion is recessed upward to form a pair of second wiring grooves, the first wiring grooves and the second wiring grooves are symmetrically arranged, and the positive electrode connection portion and the negative electrode connection portion are at least partially exposed in the first wiring grooves and the second wiring grooves.

3. The USB socket supporting forward and reverse installation as claimed in claim 2, characterized in that: The exposed parts of the positive electrode connecting part and the negative electrode connecting part are respectively penetrated to form a positive electrode through-hole and a negative electrode through-hole, and the positive electrode through-hole and the negative electrode through-hole are used for core wires to pass through and then be fixed by welding.

4. The USB socket supporting forward and reverse installation as claimed in claim 3, characterized in that: The USB socket also includes a steel sheet, the power terminal also includes a positive main body extending forward from the positive connecting part, and a pair of positive contact parts are formed by forking and extending from the front end of the positive main body; the grounding terminal also includes a negative connecting strip extending laterally from the rear end of the negative connecting part to the other side of the positive connecting part, two negative extensions extending forward from the negative connecting strip and the negative connecting part, and a pair of negative contact parts extending forward from the negative extension part, and the rear ends of the positive contact part and the negative contact part are respectively provided with a positive bending part and a negative bending part so that the positive contact part, the negative contact part and the positive connecting part and the negative connecting part are on different horizontal planes.

5. The USB socket supporting forward and reverse installation as claimed in claim 4, characterized in that: The insulating body also includes a first step formed on the front side of the wiring portion, a second step located in front of the first step, an extension portion extending forward from the second step, the docking tongue portion extending forward from the extension portion, and a wrapped portion formed between the first step and the second step.

6. The USB socket supporting forward and reverse installation as claimed in claim 5, characterized in that: The positive contact portion and the negative contact portion are both exposed on one side surface of the docking tongue; or, one positive contact portion and one negative contact portion are exposed on one side surface of the docking tongue, and another positive contact portion and another negative contact portion are exposed on the other side surface of the docking tongue; the negative extension portion and the positive main body portion are both wrapped in the first step, the second step and the wrapped portion, and the positive connecting portion and the negative connecting portion are formed in the wiring portion.

7. The USB socket supporting forward and reverse installation as claimed in claim 6, characterized in that: The wrapped portion includes a first part connected to the first step and a second part connected to the first part and the second step, and the second part is penetrated by a flow hole from top to bottom. The USB socket also includes an insulating shell, and the insulating shell includes a fixed end formed to wrap the wrapped portion and an outer peripheral wall extending forward from the fixed end to the periphery of the extension portion and the docking tongue portion, and the outer peripheral wall is arranged to form a plug-in cavity for inserting a plug, and the fixed end fills the flow hole to connect the upper and lower sides into one.

8. The USB socket supporting forward and reverse installation as claimed in claim 7, characterized in that: The USB socket also includes a sealing ring, an annular groove is formed on the outer surface of the outer peripheral wall of the insulating shell, the front wall of the annular groove is recessed forward to form a front snap-in, and a pressing flange is covered on the radial outer side of the front snap-in, the sealing ring includes a ring body inserted into the annular groove and a pressing protrusion protruding from the middle of the ring body along the radial outer side to form a pressing protrusion, the front end of the ring body is snapped forward into the front snap-in and limited by the pressing flange.

9. The USB socket supporting forward and reverse installation as claimed in claim 8, characterized in that: A notch is formed on the outer side of the front end of the ring body, and the pressing flange is pressed in the space where the notch is located.

10. The USB socket supporting forward and reverse installation as claimed in claim 9, characterized in that: The annular groove includes a first annular groove and a second annular groove arranged along the plugging and unplugging direction, the first annular groove and the second annular groove are connected to form a connecting groove extending along the plugging and unplugging direction, the second annular groove is located in front of the first annular groove, the front bayonet is arranged on the front wall surface of the second annular groove, the sealing ring includes a first sealing ring sleeved in the first annular groove, a second sealing ring sleeved in the second annular groove and a ring connector accommodated in the connecting groove and connecting the first sealing ring and the second sealing ring, the first sealing ring and the second sealing ring both include a ring body and an extrusion protrusion, and the notch is opened on the front side of the ring body of the second sealing ring.

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