Push-pull self-latching connector

Abstract

The application relates to the technical field of connectors, in particular to a push-pull self-locking connector. The push-pull self-locking connector comprises a socket assembly and a plug assembly. The socket assembly comprises a socket shell provided with a first clamping part; the plug assembly comprises a connecting shell and an inner shell, the inner shell is movably connected to the connecting shell along a first direction, the first direction is the axial direction of the connecting shell, the inner shell is provided with a second clamping part and a third clamping part at intervals along the first direction, and the connecting shell is provided with a fourth clamping part; the plug assembly has a locking state and an unlocking state relative to the socket assembly, the first clamping part and the second clamping part, the third clamping part and the fourth clamping part are correspondingly clamped when in the locking state and are unclamped when in the unlocking state. The inner shell, the connecting shell and the socket shell form double clamping points therebetween, the clamping points are increased, the connection stability between the socket assembly and the plug assembly can be improved, and the problems of looseness and falling off of the plug assembly and the socket assembly can be reduced.

Description

Technical Field

[0001] This application relates to the field of connector technology, and in particular to a push-pull self-locking connector. Background Technology

[0002] Electrical connectors are typically used to electrically connect two devices to achieve power transmission or data exchange. An electrical connector usually consists of a plug and a socket, which are respectively located on the two devices to be connected. The two devices are electrically connected by inserting the plug into the socket. In connection scenarios where there is relative movement between the two devices, a self-locking mechanism is usually included after the plug and socket are inserted. Currently, the self-locking structure of self-locking connectors is not very effective and is prone to loosening and detachment.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0004] Therefore, it is necessary to provide a push-pull self-locking connector to address the problem that the current self-locking connectors have poor self-locking structure and are prone to loosening and falling off.

[0005] A push-pull self-locking connector, comprising:

[0006] A socket assembly includes a socket housing, the socket housing having a first snap-fit ​​portion;

[0007] A plug assembly includes a connecting housing and an inner housing. The inner housing is movably connected to the connecting housing along a first direction, which is the axial direction of the connecting housing. The inner housing is provided with a second latching portion and a third latching portion spaced apart along the first direction. The connecting housing is provided with a fourth latching portion. The plug assembly has a locked state and an unlocked state relative to the socket assembly. The first latching portion and the second latching portion, the third latching portion and the fourth latching portion are latched together when the plug assembly is in the locked state, and the latching is released when the plug assembly is in the unlocked state.

[0008] In one embodiment, the plug assembly further includes an elastic element, one end of which is connected to the inner housing along the first direction, and the other end of which is connected to the connecting housing.

[0009] In one embodiment, the plug assembly further includes a key housing connected to the connecting housing and spaced apart from the fourth latching portion along the first direction, the key housing being used to abut the second latching portion when in the locked state.

[0010] In one embodiment, the key housing is provided with a first plug-in portion along the first direction, and the socket housing is provided with a second plug-in portion along the first direction, wherein the first plug-in portion and the second plug-in portion are plugged in when the locked state is in the locked state.

[0011] In one embodiment, the plug assembly further includes a retaining ring that engages with the connecting housing. The end face of the retaining ring includes the fourth engaging portion, which abuts against the third engaging portion. The outer peripheral surface of the retaining ring is inclined, and the area of ​​one end face of the retaining ring abutting against the third engaging portion is greater than the area of ​​the other end face along the first direction.

[0012] In one embodiment, the plug assembly further includes a first seal connected to the outer periphery of the inner housing, wherein, in the locked state, the first seal is clamped between the inner housing and the socket housing along the first direction.

[0013] In one embodiment, the plug assembly further includes a second seal connected to the inner circumferential surface of the inner housing, the second seal being located between the inner housing and the connecting housing.

[0014] In one embodiment, the plug assembly further includes a plug housing fitted around the outer periphery of the inner housing. When in the locked state, the socket housing is inserted into the plug housing, and along a second direction, the socket housing is located between the inner housing and the plug housing, the second direction intersecting the first direction.

[0015] In one embodiment, the plug assembly further includes a pin insulator, and the socket assembly further includes a socket insulator. The pin insulator is disposed within the connecting housing, and the socket insulator is disposed within the socket housing. When in the locked state, the pin insulator is inserted into the socket insulator.

[0016] In one embodiment, the inner circumferential surface of the connecting housing facing the pin insulator is provided with a guide slope, which is used to guide the socket insulator into the connecting housing;

[0017] And / or, the plug assembly further includes a third seal and a tail housing, the tail housing being inserted into the connecting housing, the third seal being located within the connecting housing, and the third seal being disposed between the pin insulator and the tail housing along the first direction.

[0018] In the aforementioned push-pull self-locking connector, when the plug assembly is inserted into the socket assembly and is in the locked state, the fourth locking part of the connecting housing engages with the third locking part of the inner housing, and the second locking part of the inner housing engages with the first locking part of the socket housing. This creates a double locking point between the inner housing and the connecting housing and socket housing. The two locking points are spaced apart on the inner housing along a first direction, increasing the number of locking points and improving the connection stability between the socket assembly and the plug assembly, reducing the risk of the plug assembly and socket assembly loosening or falling off. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the disclosed drawings without creative effort.

[0020] Figure 1 This is a three-dimensional schematic diagram of a push-pull self-locking connector provided in an embodiment of this application.

[0021] Figure 2 This is a perspective view of the socket assembly and plug assembly provided in the embodiments of this application.

[0022] Figure 3 This is a schematic diagram of the structure of a push-pull self-locking connector provided in an embodiment of this application, wherein, Figure 3 Image (a) is a top view of a push-pull self-locking connector provided in an embodiment of this application; Figure 3 (b) in the middle is Figure 3 (a) A cross-sectional view along the AA direction.

[0023] Figure 4 A cross-sectional view of a socket assembly provided in an embodiment of this application.

[0024] Figure 5 This is a cross-sectional view of a plug assembly provided in an embodiment of this application.

[0025] Explanation of reference numerals in the attached drawings: 100, Push-pull self-locking connector; 1, Socket assembly; 11, Socket housing; 111, First snap-fit ​​portion; 112, Slot; 113, Second insertion portion; 12, Socket insulator; 2, Plug assembly; 201, Connecting housing; 2011, Fourth snap-fit ​​portion; 2012, Guide bevel; 2013, Second movable groove; 202, Inner housing; 2021, Second snap-fit ​​portion; 2022, Third snap-fit ​​portion; 2023 2024, 2025, 2026, 2027, 2028, 2029, 2020, 2020, 2020, 2020, 2021, 2022, 2023, 2024, 2025, 2026, 2027, 2028, 2029, 2020, 2020, 2020, 2020, 2020, 2020, 2021 ... Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0027] Please see Figure 1 and Figure 2 This application provides a push-pull self-locking connector 100, including a socket assembly 1 and a plug assembly 2. Please refer to... Figure 4 The socket assembly 1 includes a socket housing 11 and a socket insulator 12, the socket insulator 12 being disposed within the socket housing 11. (See also...) Figure 5 The plug assembly 2 includes a connecting housing 201, an inner housing 202, and a pin insulator 209. The pin insulator 209 is disposed inside the connecting housing 201, and the inner housing 202 is sleeved outside the connecting housing 201. The pin insulator 209 is inserted into the socket insulator 12 to realize the electrical connection between the plug assembly 2 and the socket assembly 1.

[0028] In the embodiments of this application, the first direction is the XX direction, and the second direction is the YY direction.

[0029] Please see Figure 3 (a) and Figure 3In embodiment (b), the socket housing 11 is provided with a first latching portion 111; the inner housing 202 is movably connected to the connecting housing 201 along a first direction, the first direction being the axial direction of the connecting housing 201; the inner housing 202 is provided with a second latching portion 2021 and a third latching portion 2022 spaced apart along the first direction; the connecting housing 201 is provided with a fourth latching portion 2011; the plug assembly 2 has a locked state and an unlocked state relative to the socket assembly 1; the first latching portion 111 latches with the second latching portion 2021, the third latching portion 2022, and the fourth latching portion 2011 in the locked state, and is released from latching in the unlocked state. In other words, when the plug assembly 2 is plugged into the socket assembly 1 and is in the locked state, the fourth latching portion 2011 of the connecting housing 201 latches with the third latching portion 2022 of the inner housing 202, and the second latching portion 2021 of the inner housing 202 latches with the first latching portion 111 of the socket housing 11. Therefore, the inner housing 202 is engaged with the connecting housing 201 and the socket housing 11 respectively, thereby forming a double engagement point. The two engagement points are distributed at intervals along the first direction on the inner housing 202, thereby increasing the engagement points and improving the connection stability between the socket assembly 1 and the plug assembly 2, reducing the problem of the plug assembly 2 and the socket assembly 1 becoming loose and falling off.

[0030] Please see Figure 3 In optional embodiment (b), the first latching portion 111 is provided on the inner peripheral surface of the socket housing 11. The second latching portion 2021 is provided on the outer peripheral surface of the inner housing 202. When locked, the socket housing 11 is sleeved on the outer periphery of the inner housing 202. Thus, the latching of the first latching portion 111 and the second latching portion 2021 can limit the outer side of the inner housing 202. Further, the third latching portion 2022 is provided on the inner peripheral surface of the inner housing 202, and the fourth latching portion 2011 is located on the outer peripheral surface of the connecting housing 201. The inner housing 202 is sleeved on the outer periphery of the connecting housing 201. Thus, when the third latching portion 2022 latches the fourth latching portion 2011, the inner side of the inner housing 202 can be limited. That is, the inner housing 202 can be limited from both the outer and inner sides, reducing loosening caused by external vibration forces. The second latching part 2021 and the third latching part 2022, which are spaced apart, form two sets of force concentration points. This can disperse the external impact on the socket housing 11 and the internal impact on the connecting housing 201 to the two sets of force points, thus avoiding overload breakage or wear. This is suitable for scenarios that require frequent disassembly or long-term vibration.

[0031] Please see Figure 3In optional embodiment (b), the first engaging portion 111 includes a slot 112 with a sloped wall surface, and the second engaging portion 2021 includes a protrusion 2023 with a sloped outer peripheral surface. When the plug assembly 2 and the socket assembly 1 are inserted, the second engaging portion 2021 engages with the first engaging portion 111, and the protrusion 2023 of the second engaging portion 2021 is located within the slot 112 of the first engaging portion 111, with the sloped surface of the protrusion 2023 abutting against the sloped surface of the slot 112. The sloped surface of the protrusion 2023 and the sloped surface of the slot 112 facilitate guiding the plug assembly 2 and the socket assembly 1 to engage, or facilitate guiding the plug assembly 2 and the socket assembly 1 to disengage.

[0032] Please see Figure 3 In embodiment (b), the plug assembly 2 further includes a retaining ring 205, which engages with the connecting housing 201. The end face of the retaining ring 205 includes a fourth engaging portion 2011 for abutting against a third engaging portion 2022. The outer peripheral surface of the retaining ring 205 is inclined, and the area of ​​one end face of the retaining ring 205 abutting against the third engaging portion 2022 is larger than the area of ​​the other end face along the first direction. The inclined outer peripheral surface of the retaining ring 205 provides movement space and forms a buffer when the inner housing 202 moves towards the retaining ring 205 itself along the first direction.

[0033] Please see Figure 3 In (b) of the above, in an optional embodiment, the third snap-fit ​​portion 2022 includes a snap hook 2024 that abuts against the end face of the snap ring 205.

[0034] Please see Figure 3 In (b) of the optional embodiment, the inner circumferential surface of the inner housing 202 is provided with a first movable groove 2025, and the hook 2024 protrudes from the side wall of the first movable groove 2025. The first movable groove 2025 is located outside the retaining ring 205. The first movable groove 2025 is used to provide space for the inner housing 202 to move along the first direction to avoid the retaining ring 205.

[0035] Please see Figure 3 In optional embodiment (b), the outer peripheral surface of the connecting housing 201 is provided with a second movable groove 2013. The retaining ring 205 is located in the second movable groove 2013. The smaller end face of the retaining ring 205 abuts against the groove wall of the second movable groove 2013 along the first direction, and the larger end face abuts against the hook 2024 of the third engaging part 2022 along the first direction. Providing the second movable groove 2013 can increase the connection area between the retaining ring 205 and the connecting housing 201, and the connecting housing 201 can limit the retaining ring 205, thereby improving the reliability and stability of the retaining ring 205 engaging the connecting housing 201 and the inner housing 202.

[0036] Please see Figure 3 In embodiment (b), the plug assembly 2 further includes an elastic element 203, one end of which is connected to the inner housing 202 along a first direction, and the other end is connected to the connecting housing 201. The elastic element 203 is disposed between the inner housing 202 and the connecting housing 201, allowing the inner housing 202 to move relative to the connecting housing 201 along the first direction. It is understood that when the plug assembly 2 is inserted into the socket assembly 1, the elastic element 203 is in a compressed state, possessing elastic potential energy to recover its own deformation, and both ends of the elastic element 203 apply pushing forces to both sides. Under the pushing action of the elastic element 203, the second engaging portion 2021 of the inner housing 202 engages with the first engaging portion 111 of the socket housing 11, thereby achieving self-locking between the plug assembly 2 and the socket assembly 1. When the plug assembly 2 is pulled out of the socket assembly 1, the inner housing 202 moves along the first direction, causing the inner housing 202 to move away from the socket housing 11 relative to the connecting housing 201. The inner housing 202 further compresses the elastic member 203. At the same time, the inner housing 202 moves the second locking part 2021 away from the socket housing 11, thus disengaging the second locking part 2021 from the first locking part 111. As the inner housing 202 moves away from the socket housing 11 along the first direction, the third locking part 2022 moves away from the fourth locking part 2011 along the first direction, and the third locking part 2022 also disengages from the fourth locking part 2011. After the plug assembly 2 is pulled out of the socket assembly 1, the inner housing 202 is released, and the inner housing 202 is no longer restricting the elastic member 203. The elastic member 203 restores its deformation and elongates, pushing the inner housing 202 back to its original position, thereby causing the third locking portion 2022 of the inner housing 202 to abut against the fourth locking portion 2011 of the connecting housing 201. The elastic member 203 enhances the locking stability and reliability of the first locking portion 111, the second locking portion 2021, the third locking portion 2022, and the fourth locking portion 2011 when the plug assembly 2 and the socket assembly 1 are inserted, reducing the risk of the socket assembly 1 and the plug assembly 2 becoming loose.

[0037] Please see Figure 3 In embodiment (b), the plug assembly 2 further includes a key housing 204 connected to the connecting housing 201 and spaced apart from the fourth latching portion 2011 along a first direction. The key housing 204 is used to abut the second latching portion 2021 when in a locked state. By setting the key housing 204 to abut the second latching portion 2021, the second latching portion 2021 is more stably latched to the first latching portion 111 of the socket housing 11. The key housing 204, in conjunction with the first latching portion 111, provides bidirectional limiting of the second latching portion 2021 along the first direction, reducing the risk of loosening between the first latching portion 111 and the second latching portion 2021.

[0038] Furthermore, under the pushing action of the elastic member 203 restoring its deformation and elongation, the second snap-fit ​​portion 2021 of the inner housing 202 can abut against the key housing 204 to achieve a limit along the first direction, thereby preventing the inner housing 202 from over-extending.

[0039] Please see Figure 5 In some embodiments, the key housing 204 is provided with a first insertion portion 2041 along the first direction. Please refer to [link / reference]. Figure 4 The socket housing 11 has a second insertion portion 113 along a first direction. The first insertion portion 2041 and the second insertion portion 113 are inserted into each other when in a locked state. The first insertion portion 2041 and the second insertion portion 113 guide the insertion of the connecting housing 201 and the socket housing 11, improving the connection stability and reliability of the connecting housing 201 and the socket housing 11. In conjunction with the foregoing, the key housing 204 on the connecting housing 201 not only abuts against and limits the second locking portion 2021 of the inner housing 202, thereby indirectly improving the connection stability of the inner housing 202 and the socket housing 11, but also connects the connecting housing 201 and the socket housing 11 through its own first insertion portion 2041 to the second insertion portion 113 on the socket housing 11, thereby improving the connection stability of the connecting housing 201 and the socket housing 11. Therefore, by adding the key housing 204, the connection between the socket housing 11, the connecting housing 201, and the inner housing 202 can be enhanced simultaneously.

[0040] Please see Figure 3 In embodiment (b), the plug assembly 2 further includes a first seal 206 connected to the outer periphery of the inner housing 202. When locked, the first seal 206 is sandwiched between the inner housing 202 and the socket housing 11 along a first direction. The first seal 206 enables a seal between the socket housing 11 and the inner housing 202, and also improves the connection stability between them.

[0041] In an optional embodiment, the first seal 206 may be made of rubber or silicone.

[0042] Please see Figure 3In embodiment (b), the plug assembly 2 further includes a second seal 207 connected to the inner circumferential surface of the inner housing 202, located between the inner housing 202 and the connecting housing 201. The second seal 207 improves the sealing effect between the inner housing 202 and the connecting housing 201. Thus, by providing the first seal 206 and the second seal 207, sealing can be achieved on both the outer side (socket housing 11 side) and the inner side (connecting housing 201 side) of the inner housing 202, reducing loosening due to vibration and achieving pressure balance and stress dispersion on both sides of the inner housing 202, ensuring long-term stable insertion.

[0043] In an optional embodiment, the second seal 207 may be made of rubber or silicone.

[0044] Please see Figure 3 In embodiment (b), the plug assembly 2 further includes a plug housing 208, which is sleeved on the outer periphery of the inner housing 202. When locked, the socket housing 11 is inserted into the plug housing 208, and along the second direction, the socket housing 11 is located between the inner housing 202 and the plug housing 208, with the second direction intersecting the first direction. The plug housing 208 improves the connection stability of the socket housing 11, the inner housing 202, and the connecting housing 201 along the second direction, limiting the inner housing 202 and the socket housing 11 along the second direction and preventing loosening along the second direction.

[0045] Please see Figure 3 In (b) of the above, in an optional embodiment, the first seal 206 is sandwiched in the space formed by the inner housing 202, the socket housing 11 and the plug housing 208, thereby the first seal 206 can simultaneously seal the inner housing 202, the socket housing 11 and the plug housing 208.

[0046] Please see Figure 4 and Figure 5 In some embodiments, the plug assembly 2 further includes a pin insulator 209, and the socket assembly 1 further includes a socket insulator 12. The pin insulator 209 is disposed within the connecting housing 201, and the socket insulator 12 is disposed within the socket housing 11. When in the locked state, the pin insulator 209 is inserted into the socket insulator 12. The pin insulator 209 and the socket insulator 12 are used to achieve electrical connection.

[0047] Please see Figure 5 In some embodiments, the inner circumferential surface of the connecting housing 201 facing the pin insulator 209 is provided with a guide slope 2012, which is used to guide the socket insulator 12 into the connecting housing 201. Providing the guide slope 2012 facilitates the insertion of the socket insulator 12 into the pin insulator 209.

[0048] Please see Figure 5 In some embodiments, the plug assembly 2 further includes a third seal 210 and a tail housing 211. The tail housing 211 is inserted into the connecting housing 201, and the third seal 210 is located within the connecting housing 201, positioned between the pin insulator 209 and the tail housing 211 along a first direction. The tail housing 211 is used to connect external leads, electrically connecting the external leads to the pin insulator 209. The third seal 210 enables a seal between the tail housing 211, the connecting housing 201, and the pin insulator 209.

[0049] In an optional embodiment, the third seal 210 may be made of rubber or silicone.

[0050] Please see Figure 5 In an optional embodiment, the tail housing 211 includes a cable clamp 2111 and a tail cap 2112. The cable clamp 2111 is used to hold external leads and is inserted into the connecting housing 201. The tail cap 2112 is threaded to the connecting housing 201 and can be snapped into the cable clamp 2111. A third seal 210 is disposed between the cable clamp 2111 and the pin insulator 209 along a first direction.

[0051] Please see Figure 5 In an optional embodiment, the pin insulator 209 includes a bushing 2092 and a pin body 2091. The bushing 2092 is fitted around a portion of the outer periphery of the pin body 2091, and the pin end of the pin body 2091 is exposed outside the bushing 2092 for insertion into the socket insulator 12. The terminal of the pin body 2091 is located inside the bushing 2092 for electrical connection with an external lead held by the cable clamp 2111. A third seal 210 is disposed between the bushing 2092 and the cable clamp 2111 along a first direction.

[0052] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0053] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0054] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0055] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0056] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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.

[0058] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A push-pull self-latching connector, characterized by, The utility model relates to a socket assembly and a plug assembly, and relates to the technical field of electrical connectors. The socket assembly comprises a socket housing provided with a first clamping part. The plug assembly comprises a connecting housing and an inner housing movably connected to the connecting housing along a first direction, which is the axial direction of the connecting housing. The inner housing is provided with a second clamping part and a third clamping part spaced apart along the first direction. The connecting housing is provided with a fourth clamping part. The plug assembly has a locked state and an unlocked state relative to the socket assembly. The first clamping part and the second clamping part, and the third clamping part and the fourth clamping part correspond to clamping and unclamping respectively when in the locked state and the unlocked state. The plug assembly further comprises a clamping ring clamped to the connecting housing. An end face of the clamping ring forms the fourth clamping part, which is used to abut against the third clamping part. The outer peripheral surface of the clamping ring is a bevel. The area of the side end face of the clamping ring used to abut against the third clamping part is greater than the area of the other side end face along the first direction.

2. The push-pull self-latching connector of claim 1, wherein, The plug assembly further comprises an elastic member connected to the inner housing at one end along the first direction and connected to the connecting housing at the other end.

3. The push-pull self-latching connector of claim 1, wherein, The plug assembly further comprises a key housing connected to the connecting housing and spaced apart from the fourth clamping part along the first direction. The key housing is used to make the second clamping part abut against the first clamping part when in the locked state.

4. The push-pull self-latching connector of claim 3, wherein, The key housing is provided with a first insertion part along the first direction, and the socket housing is provided with a second insertion part along the first direction. The first insertion part and the second insertion part are inserted when in the locked state.

5. The push-pull self-latching connector of claim 1, wherein, The plug assembly further comprises a first sealing member connected to the outer periphery of the inner housing. The first sealing member is clamped between the inner housing and the socket housing along the first direction when in the locked state.

6. The push-pull self-latching connector of claim 1, wherein, The plug assembly further comprises a second sealing member connected to the inner peripheral surface of the inner housing. The second sealing member is located between the inner housing and the connecting housing.

7. The push-pull self-latching connector of claim 1, wherein, The plug assembly further comprises a plug housing sleeved to the outer periphery of the inner housing. The socket housing is inserted into the plug housing when in the locked state. The socket housing is located between the inner housing and the plug housing along a second direction intersecting the first direction.

8. The push-pull self-latching connector of claim 1, wherein, The plug assembly further comprises a pin insulator provided in the connecting housing, and the socket assembly further comprises a socket insulator provided in the socket housing. The pin insulator is inserted into the socket insulator when in the locked state.

9. The push-pull self-latching connector of claim 8, wherein, The inner peripheral surface of the connecting housing facing the pin insulator is provided with a guide bevel used to guide the socket insulator into the connecting housing. And / or, the plug assembly further comprises a third seal and a tail housing, the tail housing is inserted into the connecting housing, the third seal is located in the connecting housing, and the third seal is arranged between the pin insulator and the tail housing in the first direction.

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