Push-pull self-locking connector

Abstract

The utility model discloses a push-pull self-locking connector, which comprises a first plugging unit and a second plugging unit, and one end of the first plugging unit can be connected with one end of the second plugging unit in a matched manner. The first plugging unit comprises a first connecting structure and a first outer sleeve, and the second plugging unit comprises a second connecting structure and a second outer sleeve; the first outer sleeve sleeves the outer side of the first connecting structure; the second jacket sleeves the outer side of the second connecting structure; the first plug-in unit further comprises a first inner sleeve, and the first inner sleeve is arranged between the first connecting structure and the first outer sleeve. The first inner sleeve is provided with a first elastic matching part, the first outer sleeve is provided with a first matching groove, and the second outer sleeve is provided with a second matching groove; and the first elastic matching part is sequentially matched and connected with the first matching groove and the second matching groove. And the first elastic matching part is sequentially matched and connected with the first matching groove and the second matching groove, so that the quick connection and quick release functions among the first outer sleeve, the first inner sleeve and the second outer sleeve are realized.

Description

Push-pull self-locking connector Technical Field

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

[0002] Push-pull self-locking connectors are specially designed electrical connectors primarily used in scenarios requiring rapid insertion and removal and high-reliability connections. Their core feature is the use of a push-pull operation for insertion and removal, with a self-locking mechanism ensuring a secure connection and preventing accidental dislodgement. Existing push-pull self-locking connectors generally consist of a shell, pins / sockets, a self-locking mechanism, and an optional sealing ring. The shell is typically made of metal or engineering plastic for support, providing basic mechanical protection and electromagnetic shielding. The pins, in conjunction with the sockets, transmit signals or power; the contact areas are usually gold-plated or coated to enhance conductivity and corrosion resistance. The self-locking mechanism, the core component for achieving push-pull self-locking, typically uses mechanical latches, springs, or sliders to automatically lock the connector in place. The sealing ring, as an optional structure, can be customized to meet market demands for waterproofing and dustproofing.

[0003] Based on the above structure, current push-pull self-locking connectors on the market can meet various requirements such as quick insertion and removal, vibration resistance, shock resistance, prevention of mis-insertion, high protection, and long service life. However, existing push-pull self-locking connectors lack sufficient stability and precision in their self-locking structure, thus affecting the insertion quality of the connector. Summary of the Invention

[0004] Therefore, it is necessary to provide a push-pull self-locking connector to address the technical problems of insufficient mating stability and accuracy of existing push-pull self-locking connectors.

[0005] A push-pull self-locking connector includes a first insertion unit and a second insertion unit. One end of the first insertion unit can be connected to the corresponding end of the second insertion unit to form a push-pull self-locking connector as a whole.

[0006] The first plug-in unit includes a first connecting structure and a first outer sleeve. Correspondingly, the second plug-in unit includes a second connecting structure and a second outer sleeve. The first outer sleeve is fitted onto the outside of the first connecting structure. The second outer sleeve is fitted onto the outside of the second connecting structure. The first connecting structure and the second connecting structure can be connected in a corresponding manner. When the first connecting structure and the second connecting structure are in place, the first outer sleeve is embedded and fitted into the inside of the second outer sleeve.

[0007] The first plug-in unit also includes a first inner sleeve, which is disposed between the first connecting structure and the first outer sleeve. That is, the first inner sleeve is fitted onto the side surface of the first connecting structure, and the first outer sleeve is fitted onto the side surface of the first inner sleeve, thereby forming a multi-layer stable fitting structure.

[0008] The first inner sleeve is provided with a first elastic fitting part, and correspondingly, the first outer sleeve is provided with a first fitting groove, and the second outer sleeve is provided with a second fitting groove. One end of the first elastic fitting part is a fixed end and is connected to the side wall of the first inner sleeve, and the other end of the first elastic fitting part is a movable end, which can elastically deform relative to the side wall of the first inner sleeve. The first fitting groove is provided on the side wall of the first outer sleeve corresponding to the first elastic fitting part, and the second fitting groove is provided on the inner wall of the second outer sleeve corresponding to the first fitting groove. When the first outer sleeve is fitted onto the outer surface of the first inner sleeve and the second outer sleeve is fitted onto the outer surface of the second outer sleeve, the first elastic fitting part is sequentially engaged with the first fitting groove and the second fitting groove.

[0009] In one embodiment, the first connection structure includes a first adhesive core and a plurality of first contacts. The first adhesive core is provided with a plurality of first mounting holes corresponding to the plurality of first contacts, and the plurality of first contacts are respectively installed in the plurality of first mounting holes.

[0010] In one embodiment, the second connection structure includes a second adhesive core and a plurality of second contacts. The second adhesive core is provided with a plurality of second mounting holes corresponding to the plurality of second contacts, and the plurality of second contacts are respectively installed in the plurality of second mounting holes. When the first connection structure and the second connection structure are properly engaged, the plurality of first contacts are respectively inserted into the plurality of second contacts.

[0011] In one embodiment, the first contact is configured as a male terminal, and correspondingly, the second contact is configured as a female terminal.

[0012] In one embodiment, the first contact is configured as a female terminal, and correspondingly, the second contact is configured as a male terminal.

[0013] In one embodiment, the first adhesive core is housed inside the first inner sleeve; correspondingly, the second adhesive core is housed inside the second outer sleeve.

[0014] In one embodiment, the second insertion unit further includes a second inner sleeve, which is disposed between the second outer sleeve and the second core. That is, the second inner sleeve is fitted onto the side surface of the second core, and the second outer sleeve is fitted onto the side surface of the second inner sleeve, thereby forming a multi-layer stable fitting structure.

[0015] In one embodiment, the first inner sleeve includes a first receiving portion and a second receiving portion that are connected together. The first receiving portion and the second receiving portion are disposed at both ends of the first inner sleeve. When the first plug-in unit and the second plug-in unit are engaged, the second receiving portion is disposed facing the second plug-in unit, and the first receiving portion extends outward to the outside of the first outer sleeve.

[0016] In one embodiment, one end of the first adhesive core is connected to the first receiving portion, and the other end of the first adhesive core extends along the second receiving portion toward the second insertion unit.

[0017] In one embodiment, a predetermined clearance space is reserved between the second receiving portion and the first core. Based on this structure, the first elastic fitting portion is disposed on the side wall of the second receiving portion, so that the first elastic fitting portion can move inward during the process of advancing into the first fitting groove.

[0018] In one embodiment, the second inner sleeve is provided with a second elastic fitting portion. When the first insertion unit and the second insertion unit are engaged in place, the second elastic fitting portion is embedded in the clearance space between the second receiving portion and the first rubber core.

[0019] In one embodiment, the first insertion unit further includes a retaining ring disposed between the first rubber core and the first receiving portion, that is, the retaining ring is sleeved on the side surface of the first rubber core, and the first receiving portion is sleeved on the side surface of the retaining ring.

[0020] In one embodiment, an annular locking block is provided on the side surface of the first adhesive core, and a locking ring is provided with a locking groove corresponding to the locking block. When the first adhesive core and the locking ring are engaged, the locking block is embedded into the locking groove.

[0021] In one embodiment, the first plug-in unit further includes a wire clamp and a first locking member. The wire clamp is housed inside the first inner sleeve and abuts against the end of the retaining ring facing away from the second plug-in unit. One end of the first locking member is sleeved onto the outer surface of the end of the first receiving portion. At the same time, the inner wall of the first locking member abuts against the end of the wire clamp facing away from the retaining ring, so that the wire clamp and the retaining ring are stably disposed inside the first inner sleeve.

[0022] In one embodiment, the end of the first locking member facing away from the first receiving portion is provided with a folding structure, and the inner surface of the folding structure abuts against the end of the wire clamp.

[0023] In one embodiment, the end of the wire clamp facing away from the retaining ring is provided with several claws, which are arranged in a circumferential direction to form a cylindrical clamping structure with a certain limiting space.

[0024] In one embodiment, the second insertion unit further includes a second locking member. When the first outer jacket and the second outer jacket are engaged, the second locking member is sleeved onto the outer wall of the second outer jacket, thereby causing the inner wall of the second outer jacket to be tightly connected to the outer wall of the first outer jacket.

[0025] In one embodiment, the aforementioned wire clamp and retaining ring are engaged with each other through a fitting structure, thereby limiting the twisting of the wire clamp between the retaining ring and the retaining ring.

[0026] In one embodiment, the aforementioned retaining ring and the inner wall of the first inner sleeve are engaged with each other through another fitting structure, thereby limiting the torsion of the retaining ring between the first inner sleeve.

[0027] In one embodiment, the second core and the second outer sleeve are engaged and locked together by another fitting structure, thereby limiting the torsion between the second core and the second outer sleeve.

[0028] In one embodiment, the first locking member and the first inner sleeve are connected by a threaded connection.

[0029] In one embodiment, the second locking member is connected to the first receiving portion via a threaded connection.

[0030] In one embodiment, when the first contact or the second contact is used as a female terminal, the insertion end of the female terminal is provided with a beryllium copper alloy claw spring with a certain elasticity.

[0031] In one embodiment, the aforementioned claw spring can be configured as a three-claw, four-claw, or six-claw structure.

[0032] The aforementioned push-pull self-locking connector has a first inner sleeve fitted onto the side surface of the first connecting structure, and a first outer sleeve fitted onto the side surface of the first inner sleeve, thus forming a multi-layer stable fitting structure. Based on this configuration, the first inner sleeve has a first elastic mating portion, and correspondingly, the first outer sleeve has a first mating groove, and the second outer sleeve has a second mating groove. One end of the first elastic mating portion is a fixed end connected to the side wall of the first inner sleeve, and the other end is a movable end, capable of elastic deformation relative to the side wall of the first inner sleeve. The first mating groove is located on the inner wall of the first outer sleeve corresponding to the first elastic mating portion, and the second mating groove is located on the inner wall of the second outer sleeve corresponding to the first mating groove. When the first outer sleeve is fitted onto the outer surface of the first inner sleeve, and the second outer sleeve is fitted onto the outer surface of the second outer sleeve, the first elastic mating portion sequentially engages with the first mating groove and the second mating groove, thereby achieving quick connection and quick disconnection between the first outer sleeve, the first inner sleeve, and the second outer sleeve, thus greatly improving the assembly and ease of use of the push-pull self-locking connector. Attached Figure Description

[0033] Figure 1 is a schematic diagram of the push-pull self-locking connector in one embodiment;

[0034] Figure 2 is an exploded view of the push-pull self-locking connector in one embodiment;

[0035] Figure 3 is an exploded view of the push-pull self-locking connector in one embodiment;

[0036] Figure 4 is a schematic diagram of the push-pull self-locking connector in one embodiment;

[0037] Figure 5 is a schematic cross-sectional view of the BB portion in the embodiment shown in Figure 4;

[0038] Figure 6 is a partial structural schematic diagram of a push-pull self-locking connector in one embodiment;

[0039] Figure 7 is a schematic diagram of the structure of the second plug-in unit in one embodiment;

[0040] Figure 8 is a schematic diagram of the structure of the second plug-in unit in one embodiment;

[0041] Figure 9 is a schematic diagram of the push-pull self-locking connector in one embodiment;

[0042] Figure 10 is a cross-sectional structural diagram of the CC portion in the embodiment shown in Figure 9;

[0043] Figure 11 is a schematic diagram of the insertion state of the first contact and the second contact in one embodiment;

[0044] Figure 12 is a cross-sectional schematic diagram of the insertion state of the first contact and the second contact in one embodiment;

[0045] Figure 13 is an enlarged structural schematic diagram of part N in the embodiment shown in Figure 12. Detailed Implementation

[0046] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model 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 utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0047] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 are not intended to 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 utility model.

[0048] Furthermore, 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, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In this utility model, unless otherwise explicitly 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 explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0050] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through 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. "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.

[0051] It should be noted that when 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. When 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. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0052] Please refer to Figures 1 to 13. This utility model discloses a push-pull self-locking connector 1, which includes a first insertion unit 10 and a second insertion unit 20. One end of the first insertion unit 10 can be connected to the corresponding end of the second insertion unit 20 to form the push-pull self-locking connector 1 as a whole. The first insertion unit 10 includes a first connecting structure 11 and a first outer sleeve 12. Correspondingly, the second insertion unit 20 includes a second connecting structure 21 and a second outer sleeve 22. The first outer sleeve 12 is fitted onto the outside of the first connecting structure 11. The second outer sleeve 22 is fitted onto the outside of the second connecting structure 21. The first connecting structure 11 and the second connecting structure 21 can be correspondingly engaged and connected. When the first connecting structure 11 and the second connecting structure 21 are engaged, the first outer sleeve 12 is embedded and engaged inside the second outer sleeve 22, thereby realizing the basic connection between the first insertion unit 10 and the second insertion unit 20. Based on this, the second insertion unit 20 also includes a second locking member 24. When the first outer sleeve 12 and the second outer sleeve 22 are engaged, the second locking member 24 is fitted onto the outer wall of the second outer sleeve 22, thereby causing the inner wall of the second outer sleeve 22 to be tightly connected to the outer wall of the first outer sleeve 12, thereby realizing the fastening connection between the first insertion unit 10 and the second insertion unit 20. Meanwhile, the first plug-in unit 10 also includes a first inner sleeve 13, which is disposed between the first connecting structure 11 and the first outer sleeve 12. That is, the first inner sleeve 13 is sleeved on the side surface of the first connecting structure 11, and the first outer sleeve 12 is sleeved on the side surface of the first inner sleeve 13, thereby forming a multi-layer stable sleeve structure. Based on the above configuration, specifically, the first inner sleeve 13 is provided with a first elastic mating part 131, and correspondingly, the first outer sleeve 12 is provided with a first mating groove a, and the second outer sleeve 22 is provided with a second mating groove b. One end of the first elastic mating part 131 is a fixed end and is connected to the side wall of the first inner sleeve 13, and the other end of the first elastic mating part 131 is a movable end, which can elastically deform relative to the side wall of the first inner sleeve 13. The first mating groove a is provided on the side wall of the first outer sleeve 12 corresponding to the first elastic mating part 131, and the second mating groove b is provided on the inner wall of the second outer sleeve 22 corresponding to the first mating groove a. When the first outer sleeve 12 is fitted onto the outer surface of the first inner sleeve 13 and the second outer sleeve 22 is fitted onto the outer surface of the second outer sleeve, the first elastic mating part 131 sequentially engages with the first mating groove a and the second mating groove b, thereby realizing the quick connection and quick disconnection function between the first outer sleeve 12, the first inner sleeve 13 and the second outer sleeve 22, thereby greatly improving the assembly and ease of use of the push-pull self-locking connector 1.

[0053] Furthermore, the first connecting structure 11 includes a first adhesive core 111 and a plurality of first contacts 112. The first adhesive core 111 is provided with a plurality of first mounting holes c corresponding to the plurality of first contacts 112, and the plurality of first contacts 112 are respectively installed in the plurality of first mounting holes c. Correspondingly, the second connecting structure 21 includes a second adhesive core 211 and a plurality of second contacts 212. The second adhesive core 211 is provided with a plurality of second mounting holes d corresponding to the plurality of second contacts 212, and the plurality of second contacts 212 are respectively installed in the plurality of second mounting holes d. When the first connecting structure 11 and the second connecting structure 21 are properly engaged, the plurality of first contacts 112 are respectively inserted into the plurality of second contacts 212, thereby realizing the electrical connection between the first insertion unit 10 and the second insertion unit 20. It should be noted that, in one embodiment, the first contact 112 is configured as a male terminal, and correspondingly, the second contact 212 is configured as a female terminal. In this case, the first core 111 and the second core 211 are respectively adjusted in size to accommodate the male terminal, and the second core 211 is respectively configured to accommodate the female terminal. In another embodiment, the first contact 112 is configured as a female terminal, and correspondingly, the second contact 212 is configured as a male terminal. In this case, the first core 111 and the second core 211 are respectively adjusted in size to accommodate the female terminal, and the second core 211 is respectively configured to accommodate the male terminal.

[0054] Furthermore, the first adhesive core 111 is housed inside the first inner sleeve 13; correspondingly, the second adhesive core 211 is housed inside the second outer sleeve 22; based on this, when the first adhesive core 111 and the second adhesive core 211 are in place, the first inner sleeve 13, the first outer sleeve 12 and the second outer sleeve 22 are connected to each other, thereby achieving a stable connection between the first contact 112 and the second contact 212.

[0055] Furthermore, the second insertion unit 20 also includes a second inner sleeve 23, which is disposed between the second outer sleeve 22 and the second core 211. That is, the second inner sleeve 23 is sleeved on the side surface of the second core 211, and the second outer sleeve 22 is sleeved on the side surface of the second inner sleeve 23, thereby forming a multi-layer stable sleeve structure.

[0056] Furthermore, the first inner sleeve 13 includes a first receiving portion 132 and a second receiving portion 133 connected together. The first receiving portion 132 and the second receiving portion 133 are disposed at both ends of the first inner sleeve 13. When the first insertion unit 10 and the second insertion unit 20 are engaged, the second receiving portion 133 is disposed facing the second insertion unit 20, and the first receiving portion 132 extends away to the outside of the first outer sleeve 12. Based on this, one end of the first core 111 is engaged and connected with the first receiving portion 132, and the other end of the first core 111 extends along the second receiving portion 133 toward the second insertion unit 20. In addition, a predetermined clearance space is reserved between the second receiving portion 133 and the first core 111. Based on this structure, the first elastic fitting portion 131 is disposed on the side wall of the second receiving portion 133, so that the first elastic fitting portion 131 can move inward during the process of advancing into the first fitting groove a.

[0057] Furthermore, based on the above configuration, the second inner sleeve 23 is provided with a second elastic fitting part 231. When the first insertion unit 10 and the second insertion unit 20 are in place, the second elastic fitting part 231 is embedded into the clearance space between the second receiving part 133 and the first core 111, thereby strengthening the connection strength between the second inner sleeve 23 and the first inner sleeve 13, and thus improving the fitting accuracy between the ends of the first core 111 and the second core 211.

[0058] Furthermore, the first insertion unit 10 also includes a retaining ring 14, which is disposed between the first adhesive core 111 and the first receiving portion 132. That is, the retaining ring 14 is sleeved on the side surface of the first adhesive core 111, and the first receiving portion 132 is sleeved on the side surface of the retaining ring 14. Thus, the retaining ring 14 can further limit the positioning of the first adhesive core 111 between the first inner sleeve 13, thereby enhancing the installation stability of the first adhesive core 111. In one embodiment, an annular retaining block e is provided on the side surface of the first adhesive core 111, and the retaining ring 14 is provided with a retaining groove f corresponding to the retaining block e. Thus, when the first adhesive core 111 and the retaining ring 14 are engaged, the retaining block e is embedded in the retaining groove f, thereby enhancing the connection stability between the first adhesive core 111 and the retaining ring 14.

[0059] Furthermore, the first plug-in unit 10 also includes a wire clamp 15 and a first locking member 16. The wire clamp 15 is housed inside the first inner sleeve 13 and abuts against the end of the retaining ring 14 facing away from the second plug-in unit 20, for clamping cables connected to a plurality of first contacts 112. One end of the first locking member 16 is sleeved onto the outer surface of the end of the first receiving portion 132, while the inner wall of the first locking member 16 abuts against the end of the wire clamp 15 facing away from the retaining ring 14, causing the wire clamp 15 and the retaining ring 14 to be stably disposed inside the first inner sleeve 13. Specifically, a folding structure 161 is provided at the end of the first locking member 16 facing away from the first receiving portion 132, and the inner surface of the folding structure 161 abuts against the end of the wire clamp 15, thereby limiting the axial displacement of the wire clamp 15.

[0060] Furthermore, in one embodiment, the end of the wire clamp 15 facing away from the retaining ring 14 is provided with a plurality of grippers g, which are arranged along the annular direction to form a cylindrical clamping structure with a certain limiting space.

[0061] Furthermore, in another embodiment, the wire clamp 15 and the retaining ring 14 are engaged with each other through a fitting structure, thereby limiting the torsion of the wire clamp 15 between the wire clamp 15 and the retaining ring 14. Similarly, the retaining ring 14 is engaged with the inner wall of the first inner sleeve 13 through another fitting structure, thereby limiting the torsion of the retaining ring 14 between the retaining ring 14 and the first inner sleeve 13. Similarly, the second rubber core 211 and the second outer sleeve 22 are engaged with each other through yet another fitting structure, thereby limiting the torsion of the second rubber core 211 and the second outer sleeve 22.

[0062] Furthermore, in some embodiments, the first locking member 16 is connected to the first inner sleeve 13 by a threaded connection; the second locking member 24 is connected to the first receiving portion 132 by a threaded connection.

[0063] Furthermore, in some embodiments, when the first contact 112 or the second contact 212 is used as a female terminal, a claw spring h with a certain elasticity is provided inside the insertion end of the female terminal, thereby further enhancing the insertion stability and tightness between the female terminal and the male terminal.

[0064] Furthermore, in one embodiment, the second insertion unit 20 further includes a limiting sleeve 25, which is disposed between the second inner sleeve 23 and the second outer sleeve 22. That is, the limiting sleeve 25 is sleeved on the side surface of the second inner sleeve 23, and the second outer sleeve 22 is sleeved on the side surface of the limiting sleeve 25. Thus, the limiting sleeve 25 can limit the installation position of the second inner sleeve 23 inside the second outer sleeve 22, ensuring that the second inner sleeve 23 and the second outer sleeve 22 are accurately aligned and improving coaxiality. In another embodiment, the limiting sleeve 25 is provided with a serrated surface structure to prevent rotational sliding between the second inner sleeve 23 and the second outer sleeve 22.

[0065] Furthermore, in one embodiment, both the first contact 112 and the second contact 212 are provided with snap-fit ​​portions i on their side surfaces. The snap-fit ​​portion i of the second contact 212 is configured as a gradient snap-fit ​​structure to match the diameter change of the second contact 212. This improves assembly convenience, prevents the second core 211 from cracking during assembly, and prevents the second contact 212 from falling out of the second core 211.

[0066] Furthermore, in one embodiment, the claw spring h can be configured as a three-claw, four-claw, or six-claw structure.

[0067] In summary, the push-pull self-locking connector disclosed in this utility model has a first inner sleeve fitted onto the side surface of a first connecting structure, and a first outer sleeve fitted onto the side surface of the first inner sleeve, thereby forming a multi-layer stable fitting structure. Based on the above configuration, the first inner sleeve is provided with a first elastic mating part, and correspondingly, the first outer sleeve is provided with a first mating groove, and the second outer sleeve is provided with a second mating groove; one end of the first elastic mating part is a fixed end and connected to the side wall of the first inner sleeve, and the other end of the first elastic mating part is a movable end, which can elastically deform relative to the side wall of the first inner sleeve; the first mating groove is provided on the inner wall of the first outer sleeve corresponding to the first elastic mating part, and the second mating groove is provided on the inner wall of the second outer sleeve corresponding to the first mating groove; when the first outer sleeve is fitted onto the outer surface of the first inner sleeve and the second outer sleeve is fitted onto the outer surface of the second outer sleeve, the first elastic mating part sequentially engages with the first mating groove and the second mating groove, thereby realizing the quick connection and quick disconnection function between the first outer sleeve, the first inner sleeve, and the second outer sleeve, and thus greatly improving the assembly and ease of use of the push-pull self-locking connector.

[0068] 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.

[0069] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A push-pull self-locking connector, characterized in that, include: The first plug-in unit and the second plug-in unit, one end of the first plug-in unit can be connected to the corresponding end of the second plug-in unit to form a push-pull self-locking connector as a whole; The first plug-in unit includes a first connecting structure and a first outer sleeve. Correspondingly, the second plug-in unit includes a second connecting structure and a second outer sleeve. The first outer sleeve is fitted onto the outside of the first connecting structure. The second outer sleeve is fitted onto the outside of the second connecting structure. The first connecting structure and the second connecting structure can be correspondingly fitted together. When the first connecting structure and the second connecting structure are properly fitted together, the first outer sleeve is embedded and fitted into the inside of the second outer sleeve. The first plug-in unit also includes a first inner sleeve, which is disposed between the first connecting structure and the first outer sleeve. That is, the first inner sleeve is fitted onto the side surface of the first connecting structure, and the first outer sleeve is fitted onto the side surface of the first inner sleeve, thereby forming a multi-layered stable... The sleeve has a fixed connection structure; the first inner sleeve is provided with a first elastic fitting part, and correspondingly, the first outer sleeve is provided with a first fitting groove, and the second outer sleeve is provided with a second fitting groove; one end of the first elastic fitting part is a fixed end and is connected to the side wall of the first inner sleeve, and the other end of the first elastic fitting part is a movable end, which can elastically deform relative to the side wall of the first inner sleeve; the first fitting groove is provided on the side wall of the first outer sleeve corresponding to the first elastic fitting part, and the second fitting groove is provided on the inner wall of the second outer sleeve corresponding to the first fitting groove; when the first outer sleeve is fitted onto the outer surface of the first inner sleeve and the second outer sleeve is fitted onto the outer surface of the second outer sleeve, the first elastic fitting part is sequentially engaged with the first fitting groove and the second fitting groove.

2. The push-pull self-locking connector according to claim 1, characterized in that, The first connection structure includes a first adhesive core and a plurality of first contact elements. The first adhesive core is provided with a plurality of first mounting holes corresponding to the plurality of first contact elements, and the plurality of first contact elements are respectively installed in the plurality of first mounting holes.

3. The push-pull self-locking connector according to claim 2, characterized in that, The second connection structure includes a second adhesive core and a plurality of second contacts. The second adhesive core is provided with a plurality of second mounting holes corresponding to the plurality of second contacts, and the plurality of second contacts are respectively installed in the plurality of second mounting holes. When the first connection structure and the second connection structure are properly engaged, the plurality of first contacts are respectively inserted into the plurality of second contacts.

4. The push-pull self-locking connector according to claim 3, characterized in that, The first adhesive core is housed inside the first inner sleeve; correspondingly, the second adhesive core is housed inside the second outer sleeve.

5. The push-pull self-locking connector according to claim 4, characterized in that, The second insertion unit also includes a second inner sleeve, which is disposed between the second outer sleeve and the second core. That is, the second inner sleeve is fitted onto the side surface of the second core, and the second outer sleeve is fitted onto the side surface of the second inner sleeve, thereby forming a multi-layer stable fitting structure.

6. The push-pull self-locking connector according to claim 5, characterized in that, The first inner sleeve includes a first receiving portion and a second receiving portion connected in communication. The first receiving portion and the second receiving portion are disposed at both ends of the first inner sleeve. When the first plug-in unit and the second plug-in unit are engaged, the second receiving portion is disposed facing the second plug-in unit, and the first receiving portion extends outward to the outside of the first outer sleeve.

7. The push-pull self-locking connector according to claim 6, characterized in that, One end of the first core is connected to the first receiving portion, and the other end of the first core extends along the second receiving portion toward the second insertion unit.

8. The push-pull self-locking connector according to claim 7, characterized in that, A pre-set clearance space is reserved between the second receiving part and the first core. Based on this structure, the first elastic fitting part is disposed on the side wall of the second receiving part, so that the first elastic fitting part can move inward during the process of advancing into the first fitting groove.

9. The push-pull self-locking connector according to claim 8, characterized in that, The second inner sleeve is provided with a second elastic fitting part. When the first insertion unit and the second insertion unit are in place, the second elastic fitting part is embedded into the clearance space between the second receiving part and the first rubber core.

10. The push-pull self-locking connector according to claim 9, characterized in that, The first insertion unit also includes a retaining ring, which is disposed between the first rubber core and the first receiving portion. That is, the retaining ring is sleeved on the side surface of the first rubber core, and the first receiving portion is sleeved on the side surface of the retaining ring.

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