A connector

Abstract

The application discloses a connector, which belongs to the technical field of electric connection devices, and comprises a plug and a socket. The plug comprises a first shell provided with a first plug hole, a shielding tube provided with a wire hole, a first insulator and a first terminal arranged on the first insulator. The socket comprises a second shell provided with a second plug hole, a second insulator arranged in the second plug hole and a second terminal arranged on the second insulator. The first insulator is provided with a limiting ring and an anti-rotation block. The shielding tube is provided with a positioning ring and a positioning groove. The first shell is sleeved on the shielding tube through the first plug hole, and the first plug hole and the wire hole are communicated to form a plug channel. The first insulator is arranged in the plug channel. The positioning ring is clamped between the limiting ring and the inner wall of the first plug hole. The anti-rotation block is engaged with the positioning groove to prevent the shielding tube from rotating relative to the first insulator. When the plug is plugged into the socket, the first terminal and the second terminal are electrically connected. The application has simple structure and high connection stability.

Description

Technical Field

[0001] This application relates to the technical field of electrical connection devices, and more particularly to a connector. Background Technology

[0002] In the field of electronic device connectivity technology, connectors play an irreplaceable role as key components for achieving electrical connections and signal transmission. Currently widely used connectors mainly consist of plugs and sockets that can be interlocked. However, existing connector technology faces several problems that urgently need to be addressed. On the one hand, the numerous components and complex structural design of the plug not only increase the difficulty and cost of manufacturing but also make the assembly process extremely cumbersome, requiring high skill levels from operators and making it easy for assembly errors to affect product performance. On the other hand, in actual use, the lack of an effective anti-rotation structure between the shielding tube on the plug used to connect the wires and the terminals on the insulator allows for relative rotation between the shielding tube and the terminals. This rotation can disrupt the electrical connection stability of the connector, leading to interference or interruption in signal transmission, and consequently affecting the normal operation of the entire electronic system. Utility Model Content

[0003] The purpose of this utility model embodiment is to provide a connector that can solve the above-mentioned problems existing in the prior art.

[0004] To achieve the above objectives, this application adopts the following technical solution:

[0005] A connector, comprising:

[0006] The plug includes a first housing having a first insertion hole, a shielding tube having a wire hole, a first insulator, and a first terminal disposed on the first insulator;

[0007] The socket includes a second housing having a second insertion hole, a second insulator disposed within the second insertion hole, and a second terminal disposed in the second insulator;

[0008] The first insulator has a limiting ring and an anti-rotation block, the shielding tube has a positioning ring and a positioning groove, the first housing is sleeved on the shielding tube through the first insertion hole, the first insertion hole communicates with the wire hole and forms an insertion channel, the first insulator is disposed in the insertion channel, the positioning ring is clamped between the limiting ring and the inner wall of the first insertion hole, and the anti-rotation block engages with the positioning groove to prevent the shielding tube from rotating relative to the first insulator;

[0009] When the plug is inserted into the socket, the first terminal and the second terminal are electrically connected.

[0010] Preferably, the outer side of the shielding tube has an anti-rotation hole with a rubber coating that communicates with the wire hole.

[0011] Preferably, the second terminal is a pin, and the first terminal is provided with a socket. The socket has a first connecting end for inserting the pin and a second connecting end for inserting a wire. The outer side of the first connecting end is provided with an adjustment groove communicating with the socket. The diameter of the hole of the first connecting end gradually increases in the direction away from the second connecting end, and a boss is provided on the hole wall of the first connecting end.

[0012] Preferably, the first terminal is provided with a solder-blocking portion located between the first connecting end and the second connecting end. The solder-blocking portion is located inside the socket and divides the socket into a mutually isolated pinhole segment and a wiring segment. The first connecting end is located in the pinhole segment, and the second connecting end is located in the wiring segment.

[0013] Preferably, the first insulator is provided with a first end hole, the first terminal is inserted into the first end hole along the axial direction of the first end hole, and a guide platform is provided on the outer side of the first terminal. The cross-section of the guide platform gradually increases along the axial direction of the first end hole and away from the first connection end.

[0014] Preferably, the plug further includes a first sealing ring and a sealing gasket with a sleeve hole; a first sealing groove is provided on the first insulator, the first sealing ring is sleeved on the first insulator and located in the first sealing groove, and the first sealing ring is clamped between the first insulator and the inner wall of the wire hole; the sealing gasket is sleeved on the first insulator through the sleeve hole, and the limiting ring of the first insulator is clamped between the sealing gasket and the positioning ring of the shielding tube.

[0015] Preferably, the socket further includes a second sealing ring; the second housing is provided with a nut having a threaded hole, and the second sealing ring is fitted onto the second housing and located within the threaded hole.

[0016] Preferably, the inner wall of the first insertion hole is provided with an internal thread, and the second housing is provided with an external thread. When the plug is inserted into the socket, the internal thread and the external thread are threadedly connected.

[0017] Preferably, the second housing is provided with an external mounting thread, and the external mounting thread is provided with a first positioning plane and a second positioning plane. The first positioning plane and the second positioning plane are both parallel to the axis of the external mounting thread, and the first positioning plane and the second positioning plane are symmetrically distributed about the axis of the external mounting thread.

[0018] Preferably, the second housing is provided with a positioning guide groove extending along the axial direction of the mounting external thread.

[0019] The beneficial effects of this application are as follows: the connector plug has fewer components and a simpler structural design, reducing unnecessary parts. This not only reduces the difficulty and cost of manufacturing but also simplifies plug assembly, preventing performance issues caused by assembly errors. Furthermore, this application first uses a positioning ring on the shielding tube to clamp the connector between the limiting ring and the inner wall of the first insertion hole. An anti-rotation block engages with the positioning groove to prevent the shielding tube from rotating relative to the first insulator and the first terminal on the first insulator. This ensures the stability of the electrical connection when the plug and socket are inserted, preventing interference or interruption in signal transmission and ensuring the normal operation of the entire electronic system. Attached Figure Description

[0020] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the connector structure;

[0022] Figure 2 This is a schematic diagram of the plug structure;

[0023] Figure 3 An exploded view of the plug;

[0024] Figure 4 This is a cross-sectional view of the plug;

[0025] Figure 5 This is a schematic diagram of the structure of the first terminal;

[0026] Figure 6 This is a cross-sectional view of the first terminal;

[0027] Figure 7 This is a structural diagram of the socket;

[0028] Figure 8 This is a cross-sectional view of the socket.

[0029] Explanation of reference numerals in the attached figures:

[0030] 1. Plug; 2. Socket;

[0031] 11. First housing; 12. Shielding tube; 13. First insulator; 14. First terminal; 15. First sealing ring; 16. Sealing gasket;

[0032] 21. Second housing; 22. Second insulator; 23. Second terminal; 24. Second sealing ring; 25. Nut;

[0033] 111. First insertion hole; 112. Connecting internal thread;

[0034] 121. Wire hole; 122. Positioning ring; 123. Positioning groove; 124. Glue-coated anti-rotation hole;

[0035] 131. First end hole; 132. Limiting ring; 133. Anti-rotation block; 134. First sealing groove; 135. Insertion guide groove;

[0036] 141. Socket; 142. First connecting end; 143. Second connecting end; 144. Adjustment groove; 145. Boss; 146. Solder shield; 147. Pin hole section; 148. Wiring section; 149. Guide plate;

[0037] 161. Sleeve hole; 162. Card plate;

[0038] 211. Connecting external thread; 212. Installing external thread; 213. First positioning plane; 214. Positioning guide groove; 215. Inserting guide bar; 216. Second positioning plane; 217. Second insertion hole;

[0039] 251. Threaded hole. Detailed Implementation

[0040] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0041] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "fixed," "linked," "communicated," "abutting," "clamping," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] Before discussing the exemplary embodiments in more detail, it should be noted that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe the operations (or steps) as sequential processes, many of these operations can be performed in parallel, concurrently, or simultaneously. Furthermore, the order of the operations can be rearranged. The process can be terminated when its operation is completed, but it may also have additional steps not included in the figures. The process may correspond to a method, function, procedure, subroutine, subroutine, etc.

[0044] Unless otherwise stated or defined, the term "and / or" as used in this invention includes any and all combinations of one or more of the associated listed items.

[0045] like Figures 1 to 8 As shown, this embodiment provides a connector, including a plug 1 and a socket 2 that is plugged into the plug 1.

[0046] The plug 1 includes a first housing 11 having a first insertion hole 111, a shielding tube 12 having a wire hole 121, a first insulator 13, and first terminals 14 disposed on the first insulator 13. There are multiple first terminals 14 and they are spaced apart on the first insulator 13.

[0047] The socket 2 includes a second housing 21 having a second insertion hole 217, a second insulator 22 disposed within the second insertion hole 217, and second terminals 23 disposed on the second insulator 22. Multiple second terminals 23 are distributed at intervals on the second insulator 22. The number and installation position of the second terminals 23 correspond one-to-one with those of the first terminals 14, and the second terminals 23 are used to connect with the first terminals 14 to achieve electrical connection.

[0048] When plug 1 is plugged into socket 2, one end of the second outer shell is inserted into the second insertion hole 217 and then fitted onto the first insulator 13 through the second insertion hole 217, so that the first terminal 14 and the second terminal 23 are plugged into each other to achieve electrical connection.

[0049] Compared to traditional plugs, which include components such as insulators, sealing gaskets, outer shells, inner shells, terminals, retaining rings, bushings, screws, tail nuts, and cable clamps, the plug 1 of this application has a simpler structure and is easier to assemble.

[0050] In this application, the first insulator 13 has a limiting ring 132 and an anti-rotation block 133. The limiting ring 132 and the anti-rotation block 133 are integrally formed on the outer side of the first insulator 13, that is, the limiting ring 132 is arranged around the outer side of the first insulator 13, and the anti-rotation block 133 is arranged on the outer side of the first insulator 13 and connected to the limiting ring 132 to improve strength. The shielding tube 12 has a positioning ring 122 and a positioning groove 123. The first housing 11 is sleeved on the shielding tube 12 through the first insertion hole 111. When the shielding tube 12 is installed on the first housing 11, the positioning ring 122 and the positioning groove 123 of the shielding tube 12 pass into the first insertion hole 111 and the positioning ring 122 abuts against the inner wall of the first insertion hole 111, so that the first insertion hole 111 communicates with the wire hole 121 and forms an insertion channel. The first insulator 13 is disposed in the insertion channel. At this time, a part of the first insulator 13 is stuck in the first insertion hole 111 and a part of the first insulator 13 is stuck in the wire hole 121. One end of the first terminal 14 is located in the first insertion hole 111 for insertion with the second terminal 23, and the other end of the first terminal 14 is located in the wire hole 121 for external wire connection. The wire passes through the wire hole 121 and is connected to the first terminal 14. The positioning ring 122 is clamped between the limiting ring 132 and the inner wall of the first insertion hole 111 to prevent the shielding tube 12 from separating from the first housing 11. The anti-rotation block 133 engages with the positioning groove 123 to prevent the shielding tube 12 from rotating relative to the first insulator 13.

[0051] In the prior art, after the wire passes through the shielding tube 12 and connects to the first terminal 14, the connection between the wire and the shielding tube 12 is achieved through adhesive coating. When the shielding tube 12 is installed or the plug 1 and socket 2 are connected, the shielding tube 12 may rotate, affecting the stability of the connection between the wire and the first terminal 14 on the first insulator 13, and consequently affecting the connection stability after the plug 1 and socket 2 are inserted. In this application, the rotation of the shielding tube 12 during installation or during the insertion of the socket 2 and plug 1 can be prevented. This not only makes the installation process of the shielding tube 12 and the insertion process of the socket 2 and plug 1 simpler and faster, but also ensures the stability and reliability of the connector connection. The connector of this application is crucial for maintaining the integrity of the electrical connection and preventing damage caused by rotation.

[0052] In one embodiment, the outer surface of the shielding tube 12 is provided with an anti-rotation encapsulation hole 124 communicating with the wire hole 121. After the wire is inserted into the wire hole 121 of the shielding tube 12, it needs to be encapsulated, that is, tape is wrapped around the shielding tube 12 and the wire to form an encapsulation layer to ensure the connection between the shielding tube 12 and the wire. By providing the anti-rotation encapsulation hole 124, this application prevents the shielding tube 12 and the encapsulation layer from rotating relative to each other, ensuring the protective performance of the encapsulation layer and enhancing the stability of the connector. Especially in environments with vibration or movement, it can reduce the risk of wire connection loosening or disconnection caused by vibration.

[0053] In one embodiment, the second terminal 23 is a pin, and the first terminal 14 is provided with a socket 141. The socket 141 has a first connecting end 142 for inserting the pin and a second connecting end 143 for inserting a wire, thereby enabling circuit conduction. An adjustment groove 144 communicating with the socket 141 is provided on the outer side of the first connecting end 142. The first connecting end 142 uses the socket 141 to hold the second terminal 23. The diameter of the second terminal 23 is slightly larger than the diameter of the socket 141. Therefore, the adjustment groove 144 allows the second terminal 23 to open the first connecting end 142, facilitating the insertion of the second terminal 23 into the socket 141. The diameter of the hole at the first connecting end 142 gradually increases in the direction away from the second connecting end 143. The first connecting end 142 is flared, which not only increases the strength of the socket 141, but also provides better guidance during insertion and removal, reduces wear during insertion and removal, and further facilitates the insertion of the second terminal 23 into the socket 141. At the same time, a boss 145 is provided on the hole wall of the first connecting end 142. The boss 145 is integrally formed on the inner wall of the hole wall, so that the diameter of the hole at the boss 145 is minimized, thereby improving the clamping force on the second terminal 23.

[0054] Furthermore, the first terminal 14 is provided with a solder-blocking portion 146 located between the first connecting end 142 and the second connecting end 143. The solder-blocking portion 146 is located within the socket 141 and divides the socket 141 into mutually isolated pinhole segments 147 and wiring segments 148. The first connecting end 142 is located in the pinhole segment 147, and the second connecting end 143 is located in the wiring segment 148. The second connecting end 143 of the socket 141 is used for wire insertion. After the wire is inserted into the socket 141, soldering is required to securely connect the first terminal 14 and the wire. However, during the soldering process, solder will flow through the socket 141 to the first connecting end 142 of the socket 141, causing the second terminal 23 to be unable to be inserted into the first connecting end 142 of the first terminal 14. This application effectively prevents unwanted solder flow during the soldering process by providing the solder-blocking portion 146, thereby avoiding bridging or short circuits and improving the reliability of soldering and the safety of the circuit. The solder block 146 simplifies the soldering process, reduces reliance on skill during soldering, makes the soldering process easier to control, and improves production efficiency.

[0055] Optionally, the first terminal 14 is formed by stamping, and the outer surface of the first terminal 14 is recessed inward to form a solder baffle as a solder baffle part 146. The solder baffle part 146 can divide the socket 141 into a pinhole section 147 and a wiring section 148. The pinhole section 147 and the wiring section 148 are not connected to each other. The wiring section 148 is used for wire insertion, and the pinhole section 147 is used for the second terminal 23 insertion. The solder baffle part 146 prevents solder from flowing from the wiring section 148 to the pinhole section 147. By precisely controlling the flow of solder through the solder baffle part 146, the reliability of the final product can be improved and failures caused by poor soldering can be reduced.

[0056] Optionally, the first insulator 13 is provided with a first end hole 131, and a first terminal 14 is inserted into the first end hole 131 along the axial direction of the first end hole 131. There are multiple first end holes 131, each corresponding to a multiple first terminal 14. The second insulator 22 is provided with a second end hole, and a second terminal 23 is inserted into the first end hole 131 along the axial direction of the second end hole. There are multiple second end holes, each corresponding to a multiple second terminal 23.

[0057] A guide platform 149 is provided on the outer surface of the first terminal 14. Multiple guide platforms 149 are distributed circumferentially around the first terminal 14. Specifically, in this embodiment, there are three guide platforms 149. The cross-section of the guide platform 149 gradually increases along the axis of the first end hole 131 and away from the first connecting end 142, forming an inclined surface that abuts against the inner wall of the first end hole 131. When the first terminal 14 is installed, the first connecting end 142 of the first terminal 14 is inserted into the first end hole 131 first. The guide platform 149 makes it easier for the first terminal 14 to be inserted into the first end hole 131. The guide platform 149 has advantages such as improving force distribution, facilitating assembly, improving connection stability, reducing wear, adapting to automated assembly, enhancing waterproof performance, and improving production efficiency.

[0058] Furthermore, the first insulator 13 is provided with a plug guide groove 135, and the inner wall of the second plug hole 217 of the second housing 21 is provided with a plug guide strip 215. The plug guide strip 215 and the plug guide groove 135 are engaged to guide the plug 1 and the socket 2 when they are plugged in, so that the plug 1 and the socket 2 can be plugged in quickly while ensuring that the first terminal 14 and the second terminal 23 are aligned and plugged in.

[0059] In one embodiment, the plug 1 further includes a first sealing ring 15 and a sealing gasket 16 having a sleeve hole 161. A first sealing groove 134 is provided around the first insulator 13, and the first sealing ring 15 is sleeved on the first insulator 13 and located within the first sealing groove 134, with the first sealing ring 15 clamped between the first insulator 13 and the inner wall of the wire hole 121. The sealing gasket 16 is sleeved on the first insulator 13 through the sleeve hole 161, and the limiting ring 132 of the first insulator 13 is clamped between the sealing gasket 16 and the positioning ring 122 of the shielding tube 12.

[0060] The first sealing ring 15 and the sealing gasket 16 are key waterproof components that prevent moisture from entering the connector, protecting the internal electrical connections from moisture or water immersion. The first sealing groove 134 ensures the correct installation of the first sealing ring 15, simplifying the installation process, improving efficiency, and making installation simpler and faster. Simultaneously, the first sealing groove 134 ensures that the first sealing ring 15 is securely installed on the first insulator 13, preventing displacement or detachment during use and improving waterproof performance. Furthermore, the use of rubber or other elastic materials for the sealing gasket 16 provides cushioning, reducing the impact of vibration and shock on the connection and extending the product's lifespan.

[0061] The sealing gasket 16 is provided with a locking platform 162 that engages with the insertion guide groove 135, which facilitates the installation guidance of the sealing gasket 16.

[0062] Optionally, the socket 2 also includes a second sealing ring 24. The second housing 21 is provided with a nut 25 having a threaded hole 251, and the nut 25 is integrally formed with the second housing 21. The second sealing ring 24 is fitted onto the second housing 21 and located within the threaded hole 251. The second sealing ring 24 also prevents moisture from entering the connector, protecting the internal electrical connections from moisture or water immersion. The nut 25 facilitates the installation of the socket 2 onto external components.

[0063] The plug 1 of this application has six components: a first housing 11, a shielding tube 12, a first insulator 13, a first terminal 14, a first sealing ring 15, and a sealing gasket 16. The socket 2 has five components: a second housing 21, a second insulator 22, a second terminal 23, a second sealing ring 24, and a nut 25. Compared with existing connectors, this application has fewer components and is simpler to assemble. This application reduces unnecessary parts and lowers material costs through optimized design. This application reduces redundant steps, shortens assembly time, and improves assembly efficiency by optimizing the process flow. This application reduces overall assembly costs by comprehensively considering cost factors such as materials, labor, and equipment. This application improves the reliability and stability of the assembly process, reduces assembly errors, and improves product quality through simulation verification and optimized design.

[0064] Furthermore, both the first insulator 13 and the second insulator 22 are made of nylon (PA), also known as polyamide fiber, nylon, etc. For example, both the first insulator 13 and the second insulator 22 are made of PA66 material, which not only has good electrical properties and good insulation properties, but also has the characteristics of fatigue resistance, corrosion resistance, and wear resistance.

[0065] Both the first shell 11 and the second shell 21 are made of zinc alloy. Both the first shell 11 and the second shell 21 are irregular structures with relatively complex structures. Therefore, they are made of zinc alloy by die casting. Zinc alloy has the characteristics of good die casting performance, corrosion resistance and low manufacturing cost.

[0066] The shielding tube 12 is made of copper alloy, which provides excellent shielding performance. The nut 25 is made of copper alloy, which offers high strength and corrosion resistance.

[0067] The first sealing ring 15, the second sealing ring 24, and the sealing gasket 16 are all made of hydrogenated nitrile butadiene rubber (HBR) and other rubber materials. Rubber has the characteristics of heat resistance, cold resistance, aging resistance, and fatigue resistance.

[0068] Both the first terminal 14 and the second terminal 23 are made of copper alloy and formed by stamping.

[0069] In one embodiment, the inner wall of the first insertion hole 111 is provided with an internal thread 112, and the upper ring of the second housing 21 is provided with an external thread 211. When the plug 1 and the socket 2 are inserted, the internal thread 112 and the external thread 211 are threadedly connected. Threaded connection components are low-cost, simple in structure, easy to install, and reliable in connection. The outer surface of the second housing 21 is designed with anti-slip square stripes, which are not only aesthetically pleasing but also facilitate manual rotation and tightening during insertion.

[0070] Furthermore, the second housing 21 is provided with an external mounting thread 212. The external mounting thread 212 has a first positioning plane 213 and a second positioning plane 216. Both the first positioning plane 213 and the second positioning plane 216 are parallel to the axis of the external mounting thread 212, and are symmetrically distributed about the axis of the external mounting thread 212. The first positioning plane 213 and the second positioning plane 216 facilitate positioning of the socket 2 when it is installed on other components.

[0071] Optionally, the second housing 21 is provided with a positioning guide groove 214 extending along the axial direction of the mounting external thread 212, which facilitates the socket 2 to engage with the protrusions on other components to achieve installation positioning when it is installed on other components.

[0072] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A connector, characterized in that, include: The plug (1) includes a first housing (11) having a first insertion hole (111), a shielding tube (12) having a wire hole (121), a first insulator (13), and a first terminal (14) disposed on the first insulator (13); The socket (2) includes a second housing (21) having a second insertion hole (217), a second insulator (22) disposed in the second insertion hole (217), and a second terminal (23) disposed in the second insulator (22); The first insulator (13) has a limiting ring (132) and an anti-rotation block (133), the shielding tube (12) has a positioning ring (122) and a positioning groove (123), the first housing (11) is sleeved on the shielding tube (12) through the first insertion hole (111), the first insertion hole (111) communicates with the wire hole (121) and forms an insertion channel, the first insulator (13) is disposed in the insertion channel, the positioning ring (122) is clamped between the limiting ring (132) and the inner wall of the first insertion hole (111), and the anti-rotation block (133) engages with the positioning groove (123) to prevent the shielding tube (12) from rotating relative to the first insulator (13); When the plug (1) is plugged into the socket (2), the first terminal (14) and the second terminal (23) are electrically connected.

2. The connector according to claim 1, characterized in that, The outer side of the shielding tube (12) is provided with a rubber-coated anti-rotation hole (124) that communicates with the wire hole (121).

3. The connector according to claim 1, characterized in that, The second terminal (23) is a pin, and the first terminal (14) is provided with a socket (141). The socket (141) has a first connecting end (142) for inserting the pin and a second connecting end (143) for inserting a wire. The outer side of the first connecting end (142) is provided with an adjustment groove (144) communicating with the socket (141). The diameter of the hole of the first connecting end (142) gradually increases along the direction away from the second connecting end (143), and a boss (145) is provided on the hole wall of the first connecting end (142).

4. The connector according to claim 3, characterized in that, The first terminal (14) is provided with a solder-blocking part (146) located between the first connecting end (142) and the second connecting end (143). The solder-blocking part (146) is located inside the socket (141) and divides the socket (141) into a mutually isolated pinhole segment (147) and a wiring segment (148). The first connecting end (142) is located in the pinhole segment (147), and the second connecting end (143) is located in the wiring segment (148).

5. The connector according to claim 3, characterized in that, The first insulator (13) is provided with a first end hole (131), and the first terminal (14) is inserted into the first end hole (131) along the axial direction of the first end hole (131). A guide plate (149) is provided on the outer side of the first terminal (14), and the cross section of the guide plate (149) gradually increases along the axial direction of the first end hole (131) and away from the first connecting end (142).

6. The connector according to any one of claims 1 to 5, characterized in that, The plug (1) further includes a first sealing ring (15) and a sealing gasket (16) having a sleeve hole (161); a first sealing groove (134) is provided on the first insulator (13), the first sealing ring (15) is sleeved on the first insulator (13) and located in the first sealing groove (134), the first sealing ring (15) is clamped between the first insulator (13) and the inner wall of the wire hole (121); the sealing gasket (16) is sleeved on the first insulator (13) through the sleeve hole (161), and the limiting ring (132) of the first insulator (13) is clamped between the sealing gasket (16) and the positioning ring (122) of the shielding tube (12).

7. The connector according to any one of claims 1 to 5, characterized in that, The socket (2) further includes a second sealing ring (24); the second housing (21) is provided with a nut (25) having a threaded hole (251), and the second sealing ring (24) is fitted onto the second housing (21) and located in the threaded hole (251).

8. The connector according to any one of claims 1 to 5, characterized in that, The inner wall of the first insertion hole (111) is provided with an internal thread (112), and the second housing (21) is provided with an external thread (211). When the plug (1) is inserted into the socket (2), the internal thread (112) is threadedly connected to the external thread (211).

9. The connector according to any one of claims 1 to 5, characterized in that, The second housing (21) is provided with an external mounting thread (212). The external mounting thread (212) is provided with a first positioning plane (213) and a second positioning plane (216). The first positioning plane (213) and the second positioning plane (216) are both parallel to the axis of the external mounting thread (212), and the first positioning plane (213) and the second positioning plane (216) are symmetrically distributed with the axis of the external mounting thread (212) as the center.

10. The connector according to claim 9, characterized in that, The second housing (21) is provided with a positioning guide groove (214) extending along the axial direction of the mounting external thread (212).

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