Self-locking structure of male end of push-pull round connector

Abstract

This utility model discloses a push-pull self-locking structure for the male end of a connector. A main body shell surrounds the core, and a bracket, a spring, and a pull ring are mounted on the outer wall of the main body shell. The bracket is located on the outer wall of the main body shell, the spring is located on the outer wall of the main body shell and can slide along it, and the pull ring is located on the outer wall of the spring and can slide along it. The bracket and the spring are respectively provided with a plurality of first cantilever arms and second cantilever arms, which are arranged alternately. This utility model, by providing a bracket on the main body shell and a first cantilever arm on the bracket that restricts the rotation of the second cantilever arm, can always fix the locking structure on the male end in a set position, thereby achieving rapid matching and locking during the mating process of the male and female ends, reducing wear on both, and improving the insertion and removal feel. By making the spring and pull ring and / or the main body shell and bracket an integrally molded structure, it is convenient to produce the same product with the same function in different versions and at different costs, meeting the different requirements of the market and customers.

Description

Technical Field

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

[0002] Traditional industrial connectors typically achieve physical connection between connectors and ensure dust and water resistance while connected through threaded locking. This type of connector requires locking the male and female threads after mating the male and female ends. To ensure tightness and protection, some require tools such as wrenches. Disassembly also necessitates unlocking the male and female threads before pulling it out, making the process cumbersome and time-consuming.

[0003] Patent application CN2025201322186 discloses a push-pull self-locking structure for the male end of a connector. An elastic retaining ring 70 and a pull ring 60 are fitted over the male end housing 10. A locking protrusion 71, which mates with the female end, is provided on the circumferentially arranged elastic arms 76 of the elastic retaining ring 70. This allows for a push-pull self-locking structure where the male and female ends lock upon insertion and unlock upon removal. However, in actual assembly production, when both the male and female end housings have circular / annular cross-sections, the elastic retaining ring 70 and pull ring 60, as well as the elastic retaining ring 70 and housing 10, can rotate relative to each other. Furthermore, the slots on the inner wall of the female end that mate with the locking protrusion 71 are generally spaced apart. Therefore, during insertion, the male or female end may need to be rotated appropriately to achieve proper locking and engagement, reducing the insertion and removal feel. After a certain number of insertions, the male and female ends will experience wear, affecting the stability of the connection. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a self-locking structure for the male end of a push-pull circular connector, which can always fix the locking structure on the male end in a set position, thereby enabling rapid matching and locking during the mating process of the male and female ends, reducing wear on both, and improving the mating feel.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] The connector male terminal has a push-pull self-locking structure, comprising a main body shell, a core, and a male pin fitted together from the outside to the inside. One end of the male pin extends to the outside of the main body shell and connects to the cable. A shielding shell and an outer mold are sequentially fitted around the connection point from the inside to the outside. One end of the shielding shell is fitted onto the main body shell. The connector also includes a bracket, a spring, and a pull ring, wherein:

[0007] The bracket, spring, and pull ring are sequentially and axially staggered on the outer wall of the main body shell from the inside to the outside and are located on one axial side of the shielding shell. The ends of the bracket and spring away from the shielding shell extend to the axial outer side of the pull ring. The end of the spring facing the shielding shell extends to the outer side of the bracket and is located on the inner side of the end of the pull ring. The bracket is embedded in the outer wall of the main body shell, the spring is embedded in the outer wall of the main body shell and can slide circumferentially on it, and the inner wall of the pull ring is embedded in the outer wall of the spring and can slide circumferentially on it.

[0008] The support has several first cantilever arms that extend axially away from the shielding shell, arranged at equal intervals along the circumference.

[0009] The spring sheet has several second cantilever arms that extend in the same direction as the first cantilever arms, arranged at equal intervals along the circumference. Each second cantilever arm is matched and embedded between two first cantilever arms, and its free end outer wall is provided with a first protrusion that extends circumferentially and can be adapted to the inner wall of the connector female end.

[0010] As a further explanation of the above technical solution:

[0011] In the above technical solution, the outer wall of the main body shell is provided with a plurality of annular positioning protrusions, and the plurality of positioning protrusions form a first slot, a second slot, a third slot and a fourth slot arranged along the axial direction on the outer wall of the main body shell. The bracket is embedded in the first slot. The inner wall of the spring piece is provided with an annular second protrusion. The second protrusion is adapted to the second slot and can slide along it. The inner wall of the end of the pull ring extends into the third slot. The fourth slot is provided at the end of the main body shell and extends to the inner wall of the shielding shell.

[0012] In the above technical solution, the bracket includes a first connecting part and a limiting part: the first connecting part is a C-shaped ring structure, and the limiting part includes a plurality of first cantilever arms that are equally spaced along the circumference at one end of the first connecting part and extend along the axial direction. A third protrusion extending outward is formed on the outer wall of each first cantilever arm, and a second cantilever arm is provided between two adjacent third protrusions.

[0013] In the above technical solution, the spring includes a second connecting part and a tensioning part: the second connecting part is an annular structure, with a second protrusion on its inner wall and a fifth sliding groove extending circumferentially and connected end to end on its outer wall; the tensioning part includes a plurality of second cantilever arms that are axially spaced at one end of the second connecting part and extend axially, and the end of each second cantilever arm extends between the ends of two first cantilever arms.

[0014] In the above technical solution, the inner wall of the pull ring is provided with annular fourth protrusion and fifth protrusion. The fourth protrusion is provided on the inner wall of its end facing the shield shell and extends into the third groove. The fifth protrusion is adapted to the fifth sliding groove and can slide along it.

[0015] In the above technical solution, the spring and the pull ring are integrally formed.

[0016] In the above technical solution, the main shell and the support are integrally formed.

[0017] In the above technical solution, the spring and the pull ring are integrally formed, and the main body shell and the bracket are integrally formed.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting a bracket that can be locked on the main body shell, and setting a first cantilever on the bracket that can limit the rotation of the second cantilever used for mating with the female end, the locking structure on the male end can always be fixed in the set position, thereby realizing rapid matching and locking during the mating process of the male end and the female end, reducing wear on both, and improving the insertion and removal feel; by setting the spring and pull ring and / or the main body shell and the bracket as an integral molding structure, it is convenient to produce the same product with the same function in different versions and at different costs, so as to meet the different requirements of the market and customers. Attached Figure Description

[0019] Figure 1 This is a partially exploded structural diagram of the first embodiment (the cable connected to the male pin is not shown);

[0020] Figure 2 This is a cross-sectional structural schematic diagram of the first embodiment;

[0021] Figure 3 yes Figure 2 Enlarged view of section A;

[0022] Figure 4 This is a schematic diagram of the main body shell in the first embodiment;

[0023] Figure 5 This is a schematic diagram of the support structure in the first embodiment;

[0024] Figure 6 This is a schematic diagram of the spring sheet structure in the first embodiment;

[0025] Figure 7 This is a partial exploded view of the second embodiment;

[0026] Figure 8 This is a partial exploded view of the third embodiment;

[0027] Figure 9This is a partial exploded view of the fourth embodiment.

[0028] In the diagram: 10. Main body shell; 11. First slot; 12. Second slot; 13. Third slot; 14. Third slot; 20. Glue core; 30. Male pin; 40. Shielding shell; 50. Outer mold; 60. Bracket; 61. First connecting part; 62. Limiting part; 70. Spring piece; 71. Second connecting part; 72. Tensioning part; 80. Pull ring; 100. First integrated part; 200. Second integrated part; 1. First cantilever; 2. Second cantilever; 3. First protrusion; 4. Positioning protrusion; 5. Second protrusion; 6. Third protrusion; 7. Fifth slide groove; 8. Fourth protrusion; 9. Fifth protrusion; 15. Positioning slot. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings.

[0030] The embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. In the description of this application, 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," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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 limiting this application. 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 one or more of that feature. In the description of this application, "several" or "more than" means two or more, unless otherwise explicitly specified. In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise expressly specified and limited, "above" or "below" a second feature can include direct contact between the first and second features, or it can include contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of a 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" of a 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.

[0031] First Embodiment

[0032] like Figure 1-3 As shown, the male connector has a push-pull self-locking structure. The male connector includes a main body shell 10, a core 20, and a male pin 30, which are fitted together from the outside to the inside. One end of the male pin 30 extends to the outside of the main body shell 10 and connects to the cable. A shielding shell 40 and an outer mold 50 are sequentially fitted around the connection point from the inside to the outside. One end of the shielding shell 40 is fitted onto the main body shell 10. The connector also includes a bracket 60, a spring 70, and a pull ring 80.

[0033] The bracket 60, spring piece 70, and pull ring 80 are sequentially and axially staggered on the outer wall of the main body shell 10 from the inside to the outside and are located on one axial side of the shielding shell 40. The ends of the bracket 60 and spring piece 70 away from the shielding shell 40 extend to the axial outer side of the pull ring 80. The end of the spring piece 70 facing the shielding shell 40 extends to the outer side of the bracket 60 and is located on the inner side of the end of the pull ring 80. The bracket 60 is embedded in the outer wall of the main body shell 10, the spring piece 70 is embedded in the outer wall of the main body shell 10 and can slide circumferentially on it, and the inner wall of the pull ring 80 is embedded in the outer wall of the spring piece 70 and can slide circumferentially on it.

[0034] The bracket 60 has several first cantilever 1s that extend axially in a direction away from the shielding shell 40, arranged at equal intervals along the circumference.

[0035] The spring 70 has several second cantilever arms 2 that extend in the same direction as the first cantilever arm 1 arranged at equal intervals along the circumference. Each second cantilever arm 2 is matched and embedded between two first cantilever arms 1, and its free end outer wall is provided with a first protrusion 3 that extends circumferentially and can be adapted to the inner wall of the connector female end.

[0036] like Figure 4 As shown, the outer wall of the main body shell 10 is provided with several annular positioning protrusions 4. The several positioning protrusions 4 form a first slot 11, a second slot 12, a third slot 13 and a fourth slot 14 arranged along the axial direction on the outer wall of the main body shell. The bracket 60 is embedded in the first slot 11. The inner wall of the spring piece 70 is provided with an annular second protrusion 5. The second protrusion 5 is adapted to the second slot 12 and can slide along it. The inner wall of the end of the pull ring 80 extends into the third slot 13. The fourth slot 14 is provided at the end of the main body shell 10 and extends to the inner wall of the shield shell 40.

[0037] like Figure 5 As shown, the bracket 60 includes a first connecting portion 61 and a limiting portion 62. The first connecting portion 61 is a C-shaped ring structure, and the limiting portion 62 includes a plurality of first cantilever arms 1 that are evenly spaced along the circumference at one end of the first connecting portion 61 and extend axially. Each first cantilever arm 1 has a third protrusion 6 extending outward on its outer wall, and a second cantilever arm 2 is provided between two adjacent third protrusions 6. It can be understood that designing the first connecting portion 61 as a C-shaped ring structure not only facilitates assembly but also allows it to be secured at a set position in the first slot 11, preventing relative rotation between the two. In this embodiment, the main body shell 10 also has a foolproof protrusion in the first slot 11 for positioning and preventing the first connecting portion 61 from rotating.

[0038] like Figure 6As shown, the spring 70 includes a second connecting part 71 and a tensioning part 72: the second connecting part 71 is an annular structure, with a second protrusion 5 on its inner wall and a fifth sliding groove 7 extending circumferentially and connected end to end on its outer wall; the tensioning part 62 includes a plurality of second cantilever 2 that are axially spaced at one end of the second connecting part 61 and extend axially, and the end of each second cantilever 2 extends between the ends of the two first cantilever 1.

[0039] like Figure 3 As shown, the inner wall of the pull ring 80 is provided with a fourth protrusion 8 and a fifth protrusion 9. The fourth protrusion 8 is provided on the inner wall of its end facing the shield shell 40 and extends into the third groove 13. The fifth protrusion 9 is adapted to the fifth sliding groove 7 and can slide along it.

[0040] During assembly, firstly, assemble the cable, male pin 30, core 20, main body shell 10, shielding shell 40, and outer mold 50. Then, with the first cantilever 1 facing the female end, fit the bracket 60 into the first slot 11 of the main body shell 10. Fit the spring piece 70 around the bracket 60, ensuring that its positioning protrusion 5 is embedded in the second slot 12. Rotate the spring piece 70 and bracket 60 relative to each other, so that each second cantilever 2 falls between the two first cantilever 1s. Finally, fit the pull ring 80 around the spring piece 70, so that its fourth protrusion 8 on the inner wall of the end facing the outer mold 50 falls into the third groove 13, and its fifth protrusion 9 on its inner wall falls into the fifth sliding groove 7, thus completing the assembly operation. When the male and female ends are inserted, the first cantilever 1 on the bracket 60, which is matched and secured to the main body shell 10, restricts the rotation of the second cantilever 2 between them, ensuring that its first protrusion 3 can be directly matched and engaged with the inner wall of the female end.

[0041] This utility model provides a bracket 60 on the main body shell 10 for locking, and a first cantilever 1 on the bracket 60 to restrict the rotation of the second cantilever 2 used for mating with the female end. This can always fix the locking structure on the male end in a set position, thereby achieving rapid matching and locking during the mating process of the male and female ends, reducing wear on both, and improving the insertion and removal feel.

[0042] Second Embodiment

[0043] like Figure 7 As shown, based on the first embodiment, to improve assembly efficiency, this embodiment sets the spring 70 and pull ring 80 as an integrally molded structure to form the first integrated component 100. In this embodiment, the first integrated component 100 is formed by directly molding the plastic spring 70 onto the pull ring 80 using an in-mold molding process with a plastic film, making it a single integral structure. This reduces assembly steps, improves assembly efficiency, and ensures a high yield rate. In application, both the spring structure and the pull ring structure can be made of plastic material, and the first integrated component 100 can be directly molded using a single plastic film to meet market demands for different versions and cost levels of the same product.

[0044] Third Embodiment

[0045] like Figure 8 As shown, based on the first embodiment, to improve assembly efficiency, this embodiment integrates the main body shell 10 and the bracket 60 into a single molded structure to form the second integrated component 200. In this embodiment, the main body shell 10 is a metal ring structure, and several positioning slots 15 capable of accommodating the second cantilever 2 are directly machined on its outer wall. This eliminates the assembly process of the bracket 60 in the first embodiment, improving assembly efficiency and increasing the assembly yield. In application, the positioning slots 15 can also be directly molded on the main body shell 10 to further improve the production efficiency of the main body shell 10 and reduce its production cost, so as to meet the market demand for different versions and different costs of the same product.

[0046] Fourth embodiment

[0047] like Figure 9 As shown, in order to further improve assembly efficiency and reduce production costs, this embodiment sets the spring 70 and pull ring 80 as an integral molding structure to form a second integrated component 200, and sets the main shell 10 and bracket 60 as an integral molding structure to form a first integrated component 100, so as to meet the market demand for different versions and different costs of the same product.

[0048] The above does not limit the technical scope of this utility model. Any modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall still fall within the scope of the technical solution of this utility model.

Claims

1. A self-locking structure for the male end of a push-pull circular connector, wherein the male end of the connector includes a main body shell, a core, and a male pin fitted together from the outside to the inside, one end of the male pin extending to the outside of the main body shell and connecting to a cable, and a shielding shell and an outer mold sequentially fitted around the connection point from the inside to the outside, one end of the shielding shell fitting onto the main body shell; characterized in that, It also includes a bracket, spring clips, and pull rings, among which: The bracket, spring, and pull ring are sequentially and axially staggered on the outer wall of the main body shell from the inside to the outside and are located on one axial side of the shielding shell. The ends of the bracket and spring away from the shielding shell extend to the axial outer side of the pull ring. The end of the spring facing the shielding shell extends to the outer side of the bracket and is located on the inner side of the end of the pull ring. The bracket is embedded in the outer wall of the main body shell, the spring is embedded in the outer wall of the main body shell and can slide circumferentially on it, and the inner wall of the pull ring is embedded in the outer wall of the spring and can slide circumferentially on it. The support has several first cantilever arms that extend axially away from the shielding shell, arranged at equal intervals along the circumference. The spring sheet has several second cantilever arms that extend in the same direction as the first cantilever arms, arranged at equal intervals along the circumference. Each second cantilever arm is matched and embedded between two first cantilever arms, and its free end outer wall is provided with a first protrusion that extends circumferentially and can be adapted to the inner wall of the connector female end.

2. The self-locking structure of the male end of the push-pull circular connector according to claim 1, characterized in that, The outer wall of the main body shell is provided with several annular positioning protrusions. The several positioning protrusions form a first slot, a second slot, a third slot and a fourth slot arranged along the axial direction on the outer wall of the main body shell. The bracket is embedded in the first slot. The inner wall of the spring piece is provided with an annular second protrusion. The second protrusion is adapted to the second slot and can slide along it. The inner wall of the end of the pull ring extends into the third slot. The fourth slot is provided at the end of the main body shell and extends to the inner wall of the shield shell.

3. The self-locking structure of the male end of the push-pull circular connector according to claim 2, characterized in that, The bracket includes a first connecting part and a limiting part: the first connecting part is a C-shaped ring structure, and the limiting part includes a plurality of first cantilever arms that are equally spaced along the circumference at one end of the first connecting part and extend along the axial direction. A third protrusion extending outward is formed on the outer wall of each first cantilever arm, and a second cantilever arm is provided between two adjacent third protrusions.

4. The self-locking structure of the male end of the push-pull circular connector according to claim 2, characterized in that, The spring includes a second connecting part and a tensioning part: the second connecting part is an annular structure, with a second protrusion on its inner wall and a fifth sliding groove extending circumferentially and connected end to end on its outer wall; the tensioning part includes a plurality of second cantilever arms that are axially spaced at one end of the second connecting part and extend axially, and the end of each second cantilever arm extends between the ends of two first cantilever arms.

5. The self-locking structure of the male end of the push-pull circular connector according to claim 4, characterized in that, The inner wall of the pull ring is provided with a fourth and a fifth annular protrusion. The fourth protrusion is located on the inner wall of its end facing the shield and extends into the third groove. The fifth protrusion is adapted to the fifth sliding groove and can slide along it.

6. The self-locking structure of the male end of the push-pull circular connector according to any one of claims 1-5, characterized in that, The spring and the pull ring are integrally formed.

7. The self-locking structure of the male end of the push-pull circular connector according to any one of claims 1-5, characterized in that, The main body shell and the support frame are integrally molded structures.

8. The self-locking structure of the male end of the push-pull circular connector according to any one of claims 1-5, characterized in that, The spring and the pull ring are integrally formed, and the main body shell and the bracket are integrally formed.

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