A self-locking connector

Abstract

This utility model discloses a self-locking connector, comprising a socket shell and a plug shell capable of interlocking. The plug shell is fitted with a self-locking outer shell that can rotate relative to it. The outer surface of the socket shell has a sliding channel with a limiting protrusion. The inner surface of the self-locking outer shell has a locking block. An elastic mechanism is provided between the plug shell and the self-locking outer shell. This self-locking connector maintains the connection between the socket shell and the plug shell by engaging with the locking block through the sliding channel. The elastic mechanism's reset action ensures a stable connection, and the engagement method prevents stripping or breakage, resulting in a longer service life. In terms of ease of operation, the interlocking and reset mechanism makes assembly and disassembly smoother and faster. Separation is achieved by rotating the self-locking outer shell, providing convenience and a better user experience. The tail shell, adjustment cap, and tail clip design allow for convenient clamping and fixing of cables.

Description

Technical Field

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

[0002] Connectors, as electrical connection components, play a crucial role in various electronic devices. Their function is to achieve electrical connections, signal transmission, and mechanical connections between circuits. Through reliable connection methods, connectors ensure stable current conduction and signal interaction between different devices and components. They are widely used in many fields such as electronics, communications, and automobiles, and are essential basic components for ensuring the normal operation of equipment and the realization of system functions.

[0003] In current connector applications, the mainstream connection methods are threaded connections and snap-fit ​​connections. Threaded connections rely on manual tightening of the threads for fastening and disengagement, a process that consumes a significant amount of time and manpower. Especially during large-scale equipment assembly or maintenance, frequent manual operations severely impact work efficiency. Snap-fit ​​connections require manually prying open the snap-fit ​​part for insertion and removal, a cumbersome operation that demands high hand strength and precision from the user, also leading to lengthy connection and disassembly processes and significantly reducing the user experience during equipment installation, debugging, and maintenance. Furthermore, in long-term, frequent repetitive connection and disassembly operations, threaded connections are prone to wear due to continuous relative friction between the threads, leading to stripping. Snap-fit ​​connections, under repeated insertion and removal, experience material fatigue due to cyclical stress, gradually deteriorating their mechanical properties and potentially leading to breakage. Therefore, these methods have the following disadvantages: lengthy insertion and removal processes, extremely inconvenient disassembly and maintenance, poor user experience, and short product lifespan.

[0004] Therefore, a self-locking connector is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a self-locking connector to solve the above-mentioned problems.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] A self-locking connector includes a socket shell and a plug shell that can be inserted into each other, characterized in that: a self-locking outer shell that can rotate relative to each other is sleeved on the plug shell, a sliding channel is provided on the outer surface of the socket shell, the sliding channel has a limiting protrusion, and a locking block is provided on the inner surface of the self-locking outer shell.

[0008] An elastic mechanism is provided between the plug housing and the self-locking outer housing;

[0009] When the socket housing and the plug housing are inserted, the locking block enters the sliding channel, and the elastic mechanism provides elastic force to drive the self-locking outer shell to rotate relative to the plug housing. The locking block rotates circumferentially along the sliding channel to the side opposite to the limiting protrusion.

[0010] Optionally, one end of the limiting protrusion is provided with an inclined surface, and one end of the locking block is V-shaped. The inclined end of the limiting protrusion can guide the locking block into the interior of the sliding channel.

[0011] Optionally, the elastic mechanism includes a sliding block and an elastic element. The inner surface of the self-locking housing is provided with a sliding block, and the plug housing is provided with an elastic element. The other end of the elastic element abuts against the sliding block to drive the self-locking housing and the sliding block to rotate relative to the plug housing with elastic force.

[0012] Optionally, the outer surface of the plug housing is provided with an annular groove, the elastic element is disposed inside the annular groove, and the inner sidewall of the annular groove is provided with a connecting block, a limiting block and a protrusion in sequence along the circumference; there are two sliding blocks, and one end of each of them extends into the interior of the annular groove. The two sliding blocks are respectively located in the space defined by the connecting block and the limiting block, and in the space defined by the limiting block and the protrusion; the two ends of the elastic element abut against the connecting block and the adjacent sliding block respectively; when the socket housing and the plug housing are plugged in or out, the two sliding blocks move in their respective defined spaces.

[0013] Optionally, the inner wall of the annular groove is provided with two opposing clamping protrusions, and the opposite ends of the two clamping protrusions abut against or embed into the elastic element and abut against one end of the connecting block; the inner wall of the annular groove is provided with a second protrusion located between the two sliding blocks, and when the limiting protrusion and the locking block are in a relative state, the outer surface of the second protrusion abuts against the side of the sliding block away from the elastic element.

[0014] Optionally, the opposite sides of the socket housing and the plug housing are respectively provided with a terminal one and a terminal two extending to their respective other ends, and there are multiple terminals one and multiple terminals two, which are connected one-to-one.

[0015] Optionally, the outer surface of the insertion end of the plug housing is provided with a positioning groove, the positioning groove is connected to the outer peripheral surface of the insertion end of the plug housing, and the inner side wall of the socket housing is provided with a positioning block that is positioned and inserted into the positioning groove.

[0016] Optionally, both the socket housing and the plug housing have external threads at opposite ends. The plug housing is fitted with a tail shell at its end. The inner wall of the tail shell has an internal thread that engages with the external threads. An adjustment cap is threaded to the end of the tail shell. The end of the adjustment cap has a funnel-shaped structure. Multiple tail clips are arranged around the side of the tail shell away from the plug housing. The end of each tail clip away from the tail shell has an arc-shaped structure and abuts against the funnel-shaped inner wall of the adjustment cap.

[0017] Optionally, the plug housing has two insertion ports spaced apart circumferentially at one end away from the second terminal, which communicate with the annular groove, so that the two sliding blocks can enter the annular groove.

[0018] The beneficial effects of this utility model are as follows: By sliding into the channel and engaging with the locking block, the connection between the socket shell and the plug shell is maintained. Combined with the reset function of the elastic mechanism, this ensures a stable connection. Furthermore, the locking method reduces wear and tear, preventing stripping or breakage, and extending the service life. In terms of ease of operation, the locking and reset insertion method makes assembly and disassembly smooth and time-saving. The self-locking shell can be rotated to separate the parts, making it convenient and quick, thus improving the user experience. In addition, the tail shell, adjusting cap, and tail clip design allow for convenient clamping and fixing of cables. Attached Figure Description

[0019] The accompanying drawings further illustrate the present invention, but the content of the drawings does not constitute any limitation on the present invention.

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the insertion structure of the socket shell and plug shell of this utility model;

[0022] Figure 3 This is a partial structural diagram of the present invention in the locked and unlocked states, wherein a portion of the plug shell is cut off, and the locking block is fixedly disposed on the inner wall of the self-locking shell. Figure 3 The card shown is only to illustrate the positional relationship between the card and the sliding channel in the locked and unlocked states;

[0023] Figure 4 This is an exploded view of the overall structure of this utility model in both the engaged and unlocked states;

[0024] Figure 5 This is a three-dimensional structural diagram of the self-locking outer shell, sliding block, and locking block of this utility model;

[0025] Figure 6 This is an exploded view of the socket shell, plug shell, and self-locking outer shell of this utility model.

[0026] In the attached diagram: 1. Socket housing; 2. Plug housing; 3. Elastic mechanism; 31. Annular groove; 32. Connecting block; 33. Limiting block; 34. Protrusion one; 35. Sliding block; 36. Elastic element; 4. Self-locking housing; 51. Sliding channel; 511. Limiting protrusion; 52. Locking block; 61. Clamping protrusion; 62. Protrusion two; 71. Terminal one; 72. Terminal two; 81. Alignment block; 82. Alignment groove; 91. Tail housing; 92. Tail clip; 93. Adjustment cap; 10. Insertion port. Detailed Implementation

[0027] The embodiments of this utility model are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 limiting this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "multiple" means two or more, and "several" means one or more, unless otherwise explicitly specified.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for mutual communication; 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 according to the specific circumstances.

[0029] In this invention, unless otherwise explicitly 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 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 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.

[0030] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0031] In the embodiments, by Figure 1-5 The present invention discloses a self-locking connector, comprising a socket shell 1 and a plug shell 2 capable of interlocking. A self-locking outer shell 4 rotatable on the plug shell 2 is provided. The outer surface of the socket shell 1 is provided with a sliding channel 51, which has a limiting protrusion 511. The inner surface of the self-locking outer shell 4 is provided with a locking block 52. An elastic mechanism 3 is provided between the plug shell 2 and the self-locking outer shell 4. When the socket shell 1 and the plug shell 2 are interlocked, the locking block 52 enters the sliding channel 51, and the elastic mechanism 3 provides elastic force to drive the self-locking outer shell 4 to rotate relative to the plug shell 2. The locking block 52 rotates circumferentially along the sliding channel 51 to the side opposite to the limiting protrusion 511.

[0032] In this embodiment, during connection, the self-locking housing 4 is rotated so that the locking block 52 corresponds to the sliding channel 51. The locking block 52 is located on one side of the limiting protrusion 511. Then, the socket housing 1 and the plug housing 2 are inserted into each other, and the locking block 52 on the self-locking housing 4 enters the sliding channel 51. The position of the locking block 52 in the sliding channel 51 is deeper than the position of the limiting protrusion 511 (based on...). Figure 3As shown, the locking block 52 is positioned above the limiting protrusion 511 (i.e., the positions of the locking block 52 and the protrusion 511 are offset), and the self-locking housing 4 is released. The elastic mechanism 3 drives the self-locking housing 4 and the locking block 52 to rotate circumferentially, allowing the locking block 52 to rotate circumferentially to the opposite side of the limiting protrusion 511. At this time, the locking block 52 and the limiting protrusion 511 are in a latching state, thereby allowing the socket housing 1 and the plug housing 2 to be quickly connected together. During disassembly, the self-locking housing 4 is rotated so that the locking block 52 on the self-locking housing 4 is offset from the limiting protrusion 511. At this time, the locking block 52 and the limiting protrusion 511 are in an unlocked state, and the socket housing 1 and the plug housing 2 can be separated. During the insertion and removal process, the locking and resetting methods are used for disassembly and assembly, ensuring the smoothness and stability of the product connection. At the same time, it avoids the use of snap-fit ​​or threaded methods, which may lead to material fatigue fracture or thread stripping, thus extending the service life of the product. The disassembly and assembly time is also shorter, improving the user experience and facilitating disassembly and maintenance.

[0033] In a specific embodiment of the utility model, referring to... Figures 1 to 3 The elastic mechanism 3 includes a sliding block 35 and an elastic element 36. The inner surface of the self-locking housing 4 is provided with the sliding block 35, and the plug housing 2 is provided with the elastic element 36. The other end of the elastic element 36 abuts against the sliding block 35 so as to drive the self-locking housing 4 and the sliding block 35 to rotate relative to the plug housing 2 with elastic force.

[0034] In this embodiment, the elastic element 36 is always in a stored state. After the self-locking housing 4 is rotated forward so that the locking block 52 aligns with the sliding channel 51, the sliding block 35 will continue to press the elastic element 36 further, inserting the socket housing 1 and the plug housing 2. The locking block 52 on the self-locking housing 4 enters the sliding channel 51, while the locking block 52 and the limiting protrusion 511 are misaligned. At this time, the self-locking housing 4 is released, and the elastic force of the elastic element 36 drives the sliding block 35 to rotate circumferentially (in the opposite direction), allowing the locking block 52 on the self-locking housing 4 to... Rotate the plug 52 to the opposite side of the limiting protrusion 511, and the elastic element 36 continuously provides elastic force to keep the locking block 52 and the limiting protrusion 511 in the locked state, so that the socket shell 1 and the plug shell 2 can be quickly connected together. When it is necessary to disconnect the socket shell 1 and the plug shell 2, rotate the self-locking shell 4 in the opposite direction to make the locking block 52 and the limiting protrusion 511 misaligned. At this time, pull the socket shell 1 and the plug shell 2 to both sides to make the locking block 52 leave the sliding channel 51, so that the socket shell 1 and the plug shell 2 can be disconnected.

[0035] It should be noted that the elastic element 36 is preferably a ring spring, and the overall shape of the ring spring is arc-shaped. Therefore, the ring spring can be installed along the arc-shaped surface of the plug housing 2.

[0036] Furthermore, refer to Figure 2 and Figure 3The outer surface of the plug shell 2 is provided with an annular groove 31, and the elastic element 36 is disposed inside the annular groove 31. The inner sidewall of the annular groove 31 is provided with a connecting block 32, a limiting block 33 and a protrusion 34 in sequence along the circumference. There are two sliding blocks 35, and one end of each of them extends into the interior of the annular groove 31. The two sliding blocks 35 are respectively located in the space defined by the connecting block 32 and the limiting block 33, and in the space defined by the limiting block 33 and the protrusion 34. The two ends of the elastic element 36 abut against the connecting block 32 and the adjacent sliding block 35 respectively. When the socket shell 1 and the plug shell 2 are plugged in or unplugged, the two sliding blocks 35 move in their respective defined spaces.

[0037] Before the socket housing 1 and plug housing 2 are inserted, the self-locking housing 4 needs to be rotated forward so that the locking block 52 corresponds to the sliding channel 51 before insertion. However, there is no structure to limit the self-locking housing 4 or the sliding block 35 at this position, which can easily over-compress the elastic element 36 and cause permanent damage to the elastic element 36. Secondly, after the socket housing 1 and plug housing 2 are separated, the elastic force of the elastic element 36 will drive the sliding block 35 to rotate circumferentially and in different positions, which is not conducive to use. Therefore, the above-mentioned specific implementation method is proposed.

[0038] In this embodiment, the two sliding blocks 35 are respectively disposed in the space defined by the connecting block 32 and the limiting block 33, and in the space defined by the limiting block 33 and the protrusion 34. Before the socket housing 1 and the plug housing 2 are inserted, the self-locking housing 4 needs to be rotated forward so that the locking block 52 corresponds to the sliding channel 51. During this process, the sliding block 35 in the space defined by the limiting block 33 and the protrusion 34 can only rotate circumferentially within the space defined by the limiting block 33 and the protrusion 34. When the maximum rotation angle is reached, the sliding block 35 will abut against the limiting block 33 to play a limiting role and prevent the other sliding block 35 from excessively compressing the elastic element 36. After the socket housing 1 and the plug housing 2 are separated, or after the socket housing 1 After the plug shell 2 is inserted, the elastic force of the elastic element 36 will cause the self-locking shell 4 and the sliding block 35 to rotate circumferentially. The sliding block 35 in the space defined by the limiting block 33 and the protrusion 34 will abut against the protrusion 34, so that after the self-locking shell 4 is released, the self-locking shell 4 and the sliding block 35 will return to the same position, which is convenient for subsequent use. In addition, when the locking block 52 and the limiting protrusion 511 are in the latching state, the sliding block 35 in the space defined by the limiting block 33 and the protrusion 34 will also abut against the protrusion 34.

[0039] It should be noted that the elastic element 36 is a ring spring, and the ring spring can be installed in the ring groove 31; while the connecting block 32 is connected to one end of the elastic element 36 so as to apply elastic force to push the slide block 35 to rotate circumferentially or the slide block 35 to rotate circumferentially and squeeze the elastic element 36.

[0040] In addition, refer to Figure 3The inner wall of the annular groove 31 is provided with a second protrusion 62 located between two sliding blocks 35. When the limiting protrusion 511 and the locking block 52 are in a relative state (i.e., the locking block 52 and the limiting protrusion 511 are in a snap-fit ​​state), the side of the sliding block 35 that abuts against the elastic member 36 away from the elastic member 36 is opposite to the second protrusion 62. After the self-locking housing 4 is released, the self-locking housing 4 and the sliding block 35 will return to their final position. In this final position, in addition to the first protrusion 34 limiting one of the sliding blocks 35, the second protrusion 62 also limits the other sliding block 35 (the sliding block 35 that abuts against the elastic member 36), so as to achieve a double limiting effect and thus improve the limiting effect.

[0041] Furthermore, refer to Figure 3 The inner wall of the annular groove 31 is provided with two opposing clamping protrusions 61, and the opposite ends of the two clamping protrusions 61 abut against or embed into the elastic member 36 abutting against one end of the connecting block 32. Based on Figure 3 As shown, the two clamping protrusions 61 are located on the two opposing inner sidewalls of the annular groove 31. The clamping protrusions 61 on both sides of the annular groove 31 can clamp and fix one end of the elastic member 36 to keep it stationary, thereby improving the stability of the elastic member 36 and facilitating compression or recovery of deformation.

[0042] Furthermore, refer to Figure 3 One end of the limiting protrusion 511 is provided with a bevel, and one end of the locking block 52 is V-shaped. The beveled end of the limiting protrusion 511 can guide the locking block 52 into the interior of the sliding channel 51. When the locking block 52 corresponds to the limiting protrusion 511, when the socket shell 1 and the plug shell 2 are forcefully inserted, the V-shaped end of the locking block 52 will enter the sliding channel 51 along the beveled end of the limiting protrusion 511, which plays a guiding role, without needing to rotate the self-locking shell 4, so as to facilitate the quick connection between the locking block 52 and the limiting protrusion 511.

[0043] In addition, the number of sliding channels 51, limiting protrusions 511 and locking blocks 52 are all at least two and are equidistantly distributed to ensure that there is no shaking or unevenness after the fastening is completed, thus improving the stability of the connection.

[0044] Among them, reference Figure 6 The outer surface of the insertion end of the plug housing 2 is provided with a positioning groove 82, which communicates with the outer peripheral surface of the insertion end of the plug housing 2. The inner side wall of the socket housing 1 is provided with a positioning block 81 that is positioned and inserted into the positioning groove 82. The opposite sides of the socket housing 1 and the plug housing 2 are respectively provided with a terminal 1 71 and a terminal 2 72 extending to their respective other ends. There are multiple terminals 1 71 and multiple terminals 2 72, and multiple terminals 1 71 and multiple terminals 2 72 are connected in a one-to-one correspondence.

[0045] When the plug shell 2 is inserted into the socket shell 1, the alignment groove 82 on the outer surface of the insertion end of the plug shell 2 is positioned and inserted into the alignment block 81 on the inner side wall of the socket shell 1, which restricts the circumferential rotation of the plug shell 2 to ensure accurate relative position and facilitates precise insertion of the socket shell 1 and the plug shell 2. At the same time, multiple terminals 71 and 72 on the opposite sides of the socket shell 1 and the plug shell 2 come into contact with each other after accurate docking, realizing the precise connection of terminals 71 and 72.

[0046] Furthermore, refer to Figure 4 The plug housing 2 has two insertion ports 10 that are circumferentially spaced at one end away from the terminal 2 72, which are connected to the annular groove 31, so that the two sliding blocks 35 can enter the annular groove 31.

[0047] In this example, the diameter of the plug shell 2 is larger than the distance between the two sliding blocks 35, making it impossible to install, and the sliding blocks 35 cannot enter the annular groove 31. Since the sliding blocks 35 are made of deformable material, when installing the self-locking shell 4 onto the plug shell 2, the sliding blocks 35 on the plug shell 2 need to be aligned with the insertion port 10 and inserted, then enter the annular groove 31 along the insertion port 10. At this time, the two sliding blocks 35 are respectively located between the second protrusion 62 and the limiting block 33, and between the connecting block 32 and the first protrusion 34. Then, by forcefully rotating the self-locking shell 4, the two sliding blocks 35 are forced against the second protrusion 62 and the first protrusion 34 and deformed, eventually passing over them, so that the two sliding blocks 35 are respectively positioned between the connecting block 32 and the second protrusion 62, and between the limiting block 33 and the first protrusion 34, thus completing the installation of the self-locking shell 4.

[0048] It should be noted that the outer surface of the self-locking housing 4 is provided with anti-slip texture to prevent slippage when rotating the self-locking housing 4, thus playing an anti-slip role.

[0049] Among them, reference Figure 4 Both the socket housing 1 and the plug housing 2 have external threads at opposite ends. The end of the plug housing 2 is fitted with a tail housing 91. The inner wall of the tail housing 91 has an internal thread that engages with the external thread. The end of the tail housing 91 is threaded with an adjustment cap 93. The end of the adjustment cap 93 has a funnel-shaped structure. Multiple tail clips 92 are arranged around the side of the tail housing 91 away from the plug housing 2. The end of the tail clip 92 away from the tail housing 91 has an arc-shaped structure and abuts against the inner wall of the funnel-shaped adjustment cap 93.

[0050] The tail clip 92 is made of a deformable material. In use, the plug housing 2 and the tail housing 91 are connected together using threads. The cable passes through the tail housing 91 and connects to terminal 72. An adjusting cap 93 is threaded to the end of the tail housing 91, and a tail clip 92 is provided at the end of the tail housing 91, abutting against the funnel-shaped inner wall of the adjusting cap 93. When the adjusting cap 93 rotates and shifts, the funnel-shaped inner wall of the adjusting cap 93 presses against the tail clip 92, causing multiple tail clips 92 to deform and clamp and fix the cable surface. One end of the tail clip 92 has an arc-shaped structure, which fits more closely to the funnel-shaped inner wall of the adjusting cap 93, making it easier to be compressed and deformed. Additionally, one end of the socket housing 1 has an external thread, and a limiting ring (based on...) is provided on the socket housing 1 next to this external thread. Figure 2 The limiting ring is located below the external thread, which can be used to install or fix it on the equipment for subsequent use, while the limiting ring serves to limit or abut against the surface of the equipment.

[0051] Working principle: When the plug shell 2 is inserted into the socket shell 1, the alignment groove 82 and the alignment block 81 are positioned and plugged in to ensure the accurate relative position of the plug shell 2 and the socket shell 1, so that multiple terminals 1 71 and terminal 2 72 are precisely connected to achieve circuit connection; at the same time, after the sliding channel 51 and the locking block 52 are inserted accordingly, the self-locking shell 4 is released, and the elastic mechanism 3 drives the self-locking shell 4 and the locking block 52 to reset, and the sliding channel 51 and the locking block 52 are engaged to connect the socket shell 1 and the plug shell 2 together; when the self-locking shell 4 is rotated, the sliding block 35 is rotated to squeeze the elastic element 36, so that the locking block 52 and the sliding channel 51 are released from the engagement state, and the plug shell 2 and the socket shell 1 can be separated; in addition, the plug shell 2 and the tail shell 91 are connected by threads, the cable passes through the tail shell 91 and connects to the terminal 2 72, the adjustment cap 93 is rotated and displaced, so that it squeezes the tail clip 92 to deform and clamp and fix the cable.

[0052] In the description of this specification, the references to terms such as "embodiment," "one implementation," "some implementations," "illustrative implementation," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with the described implementation or example is included in at least one implementation or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same implementation or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more implementations or examples.

[0053] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these equivalent modifications or substitutions are all included within the scope defined by the claims of this application.

Claims

1. A self-locking connector comprising a socket housing (1) and a plug housing (2) which can be plugged into each other, characterized in that: The plug shell (2) is fitted with a self-locking outer shell (4) that can rotate relative to it. The outer surface of the socket shell (1) is provided with a sliding channel (51). The sliding channel (51) has a limiting protrusion (511). The inner surface of the self-locking outer shell (4) is provided with a locking block (52). An elastic mechanism (3) is provided between the plug housing (2) and the self-locking housing (4); When the socket housing (1) and the plug housing (2) are inserted, the locking block (52) enters the sliding channel (51), and the elastic mechanism (3) provides elastic force to drive the self-locking housing (4) to rotate relative to the plug housing (2). The locking block (52) rotates circumferentially along the sliding channel (51) to the side opposite to the limiting protrusion (511).

2. A self-locking connector according to claim 1, wherein One end of the limiting protrusion (511) is provided with an inclined surface, and one end of the locking block (52) is V-shaped. The inclined end of the limiting protrusion (511) can guide the locking block (52) into the interior of the sliding channel (51).

3. A self-locking connector according to claim 1, wherein The elastic mechanism (3) includes a sliding block (35) and an elastic element (36). The inner surface of the self-locking housing (4) is provided with a sliding block (35), and the plug housing (2) is provided with an elastic element (36). The other end of the elastic element (36) abuts against the sliding block (35) so as to drive the self-locking housing (4) and the sliding block (35) to rotate relative to the plug housing (2) with elastic force.

4. A self-locking connector according to claim 3, wherein The outer surface of the plug shell (2) is provided with an annular groove (31), and the elastic element (36) is disposed inside the annular groove (31). The inner sidewall of the annular groove (31) is provided with a connecting block (32), a limiting block (33) and a protrusion (34) in sequence along the circumference. There are two sliding blocks (35), and one end of each of them extends into the interior of the annular groove (31). The two sliding blocks (35) are respectively located in the space defined by the connecting block (32) and the limiting block (33), and in the space defined by the limiting block (33) and the protrusion (34). The two ends of the elastic element (36) abut against the connecting block (32) and the adjacent sliding block (35) respectively. When the socket shell (1) and the plug shell (2) are plugged in and out, the two sliding blocks (35) move in their respective defined spaces.

5. A self-locking connector according to claim 4, wherein The inner wall of the annular groove (31) is provided with two oppositely arranged clamping protrusions (61), and the opposite ends of the two clamping protrusions (61) abut or embed into the elastic member (36) and abut one end of the connecting block (32); the inner wall of the annular groove (31) is provided with a second protrusion (62) located between the two sliding blocks (35), when the limiting protrusion (511) and the locking block (52) are in a relative state, the outer surface of the second protrusion (62) abuts against the side of the sliding block (35) away from the elastic member (36).

6. A self-locking connector according to claim 5, wherein The socket housing (1) and the plug housing (2) are respectively provided with a terminal one (71) and a terminal two (72) extending to their respective other ends. There are multiple terminals one (71) and multiple terminals two (72), and the multiple terminals one (71) and multiple terminals two (72) are connected in a one-to-one correspondence.

7. A self-locking connector according to claim 1, wherein The outer surface of the insertion end of the plug housing (2) is provided with a positioning groove (82), which is connected to the outer peripheral surface of the insertion end of the plug housing (2). The inner side wall of the socket housing (1) is provided with a positioning block (81) that is positioned and inserted into the positioning groove (82).

8. A self-locking connector according to claim 1, wherein Both the socket housing (1) and the plug housing (2) have external threads at opposite ends. The end of the plug housing (2) is fitted with a tail housing (91). The inner wall of the tail housing (91) is provided with an internal thread that engages with the external threads. The end of the tail housing (91) is threaded with an adjustment cap (93). The end of the adjustment cap (93) has a funnel-shaped structure. Multiple tail clips (92) are arranged around the side of the tail housing (91) away from the plug housing (2). The end of the tail clip (92) away from the tail housing (91) has an arc-shaped structure and abuts against the inner wall of the funnel-shaped structure of the adjustment cap (93).

9. A self-locking connector according to claim 6, wherein The plug housing (2) has two insertion ports circumferentially spaced at one end away from the terminal two (72) that communicate with the annular groove (31) so that the two sliding blocks (35) can enter the annular groove (31).

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