Connector plug with anti-loosening and anti-back-off function

Abstract

The utility model discloses a connector plug with anti -loose and retreat function, including plug body, be equipped with the rubber shell in plug body, be equipped with the plug core subassembly in the rubber shell, and the plug core subassembly is inserted with the rubber shell interference fit, and the rubber shell is sleeved with the connecting nut, and the connecting nut is movably limited with the rubber shell, and the connecting nut is used for with the socket connection of connector, the outside wall of rubber shell is distributed with a plurality of wedge -shaped bosses in equal interval, and one side of wedge -shaped boss is equipped with sliding surface, and the other side is equipped with retreat face, and the inner side wall of connecting nut is equipped with retreat boss at the corresponding position of wedge -shaped boss, and retreat boss is connected with wedge -shaped boss, and retreat boss can slide on sliding surface, and retreat boss can abut with retreat face. The utility model discloses through the cooperation of retreat boss and wedge -shaped boss realizes the function that can rotate forward, and reverse retreat, can avoid the problem that connector loosens due to equipment vibration in the use, improves the stability of connection.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, specifically to a connector plug with anti-loosening and anti-retraction function. Background Technology

[0002] Connectors are critical components used to establish reliable, separable connections in electronic, electrical, or mechanical systems. Simply put, it is an "interface" or "bridge" that allows two independent parts (such as wires, circuit boards, devices, or systems) to be easily connected and disconnected, while ensuring the smooth transmission of current, signals, or data.

[0003] Connectors typically consist of a plug and a socket. Current or signals can be transmitted by inserting the plug into the socket. In practical applications, a connecting nut is usually provided on the plug to securely connect and reconnect the connector plug to the socket. After the plug and socket are inserted, the connecting nut is tightened onto the external thread of the socket to secure the connection. Electrical equipment with connectors inevitably experiences vibration during daily use, but existing connector plugs lack a locking mechanism for the connecting nut. During normal use, vibrations from the equipment can easily cause the connecting nut to loosen and reverse, leading to the plug and socket separating, resulting in signal transmission interruption or power failure. Utility Model Content

[0004] To address some or all of the problems existing in the prior art, this utility model provides a connector plug with anti-loosening and anti-retraction functions, including a plug body, a housing inside the plug body, a ferrule assembly inside the housing, the ferrule assembly being interference-fitted with the housing, a connecting nut being sleeved on the housing, the connecting nut being movable and limited to the housing, and the connecting nut being used to connect to the connector socket; multiple wedge-shaped protrusions are evenly distributed on the outer side wall of the housing, one side of each wedge-shaped protrusion has a sliding surface, and the other side has an anti-retraction surface; an anti-retraction protrusion is provided on the inner side wall of the connecting nut at a corresponding position to the wedge-shaped protrusion, the anti-retraction protrusion is in contact with the wedge-shaped protrusion, the anti-retraction protrusion can slide on the sliding surface, and the anti-retraction protrusion can abut against the anti-retraction surface.

[0005] As a further improvement of this utility model, an annular boss is provided on the outer side wall of the rubber shell, and an annular stepped surface is provided on the inner side wall of the connecting nut, the annular stepped surface being able to abut against the annular boss.

[0006] As a further improvement of this utility model, the rubber shell is threadedly connected to the plug body, and a sealing ring is fitted on the outer side wall of the rubber shell, the sealing ring sealingly abutting against the inner side wall of the plug body.

[0007] As a further improvement of this utility model, both the plug body and the connecting nut are made of hard metal material.

[0008] As a further improvement of this utility model, the inner sidewall of the connecting nut is provided with an annular mounting groove, and an elastic shielding ring is provided in the annular mounting groove, the elastic shielding ring being connected to the outer sidewall of the plug body.

[0009] As a further improvement of this utility model, the anti-reverse protrusion is semi-circular in shape, and there are four anti-reverse protrusions, which are evenly distributed on the inner sidewall of the connecting nut.

[0010] As a further improvement of this utility model, the insert assembly includes a rubber core, which is inserted into the rubber shell with an interference fit. The rubber core is provided with a plurality of pins, and one end of the rubber core is provided with a pin limiting block. The pin limiting block is fixedly connected to the rubber core and abuts against the pins respectively.

[0011] As a further improvement of this utility model, it also includes a right-angled tail shell for threading the wire, the right-angled tail shell being connected to the plug body.

[0012] As a further improvement of this utility model, a plurality of positioning grooves are provided on one end face of the right-angle tail shell. The positioning grooves are distributed in a circumferential array. A plurality of positioning protrusions are distributed in a circumferential array on the outer side wall of the plug body. The positioning protrusions correspond one-to-one with the positioning grooves and are engaged with the positioning grooves.

[0013] As a further improvement of this utility model, a fixing nut is fitted onto the plug body, and a connecting thread is provided on the outer side wall of the right-angle tail shell. The fixing nut is connected to the connecting thread, and the fixing nut abuts against the positioning protrusion.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This invention features wedge-shaped protrusions on the housing and anti-reverse protrusions on the connecting nut. The cooperation between the anti-reverse protrusions and the wedge-shaped protrusions enables forward rotation and prevents reverse retraction, thus preventing connector loosening due to equipment vibration and improving connection stability. During installation, rotating the connecting nut causes the anti-reverse protrusions to slide on the sliding surfaces of the wedge-shaped protrusions, tightening the nut. During use, if the connecting nut reverses due to equipment vibration, the anti-reverse protrusions will abut against the anti-reverse surfaces, preventing the nut from reversing. For disassembly, the user can forcefully reverse the connecting nut; the anti-reverse protrusions will compress the wedge-shaped protrusions, causing elastic deformation until the anti-reverse protrusions pass over the wedge-shaped protrusions, allowing the connecting nut to be rotated in the opposite direction for disassembly. Attached Figure Description

[0016] To more clearly illustrate the solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this utility model;

[0018] Figure 2 This is an exploded structural diagram of an embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of an embodiment of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the rubber shell in an embodiment of this utility model;

[0021] Figure 5 This is a schematic diagram of the connecting nut in an embodiment of this utility model. Detailed Implementation

[0022] Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used in the specification is for the purpose of describing particular embodiments only and is not intended to limit the invention; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this invention are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or accompanying drawings of this invention are used to distinguish different objects, not to describe a particular order.

[0023] In this invention, the reference to "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a mutually exclusive, independent, or alternative embodiment to other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described in this invention can be combined with other embodiments.

[0024] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0025] like Figure 1-5 As shown, a connector plug with anti-loosening and anti-retraction function includes a plug body 1 and a right-angle tail shell 2, which are fixedly connected. A rubber shell 3 is provided inside the plug body 1, and a ferrule assembly is provided inside the rubber shell 3. The ferrule assembly and the rubber shell 3 are inserted with an interference fit. A connecting nut 4 is sleeved on the rubber shell 3, and the connecting nut 4 is connected to the rubber shell 3 for a limited movement. The connecting nut 4 is used to connect with the connector socket, thereby allowing the connector plug and socket to be inserted and fixed.

[0026] Multiple wedge-shaped protrusions 31 are evenly distributed on the outer wall of the housing 3. One side of each wedge-shaped protrusion 31 has a sliding surface 311, and the other side has a locking surface 312. A locking protrusion 41 is located on the inner wall of the connecting nut 4 at a position corresponding to the wedge-shaped protrusions 31. The locking protrusion 41 engages with the wedge-shaped protrusions 31, can slide on the sliding surface 311, and can abut against the locking surface 312. After the connector plug is inserted into the connector socket, the user can tighten the connecting nut 4 by rotating it, causing the locking protrusions 41 to slide on the sliding surfaces 311 of each wedge-shaped protrusion 31. During equipment use, if vibration causes the connecting nut 4 to reverse, the anti-reverse protrusion 41 will abut against the anti-reverse surface 312 of the wedge-shaped protrusion 31. Limited by the anti-reverse surface 312, the connecting nut 4 cannot reverse on its own. Therefore, the connecting nut 4 will not loosen or flip due to equipment vibration, improving the connection stability of the connecting nut 4. If disassembly is required, the user can forcefully reverse the connecting nut 4. The anti-reverse protrusion 41 will press against the wedge-shaped protrusion 31, causing it to elastically deform until the anti-reverse protrusion 41 passes over the wedge-shaped protrusion 31, at which point the connecting nut 4 can be rotated in the opposite direction, achieving the disassembly function.

[0027] The connector plug has a wedge-shaped protrusion 31 on the housing 3 and a backstop protrusion 41 on the connecting nut 4. The backstop protrusion 41 and the wedge-shaped protrusion 31 cooperate to achieve the function of forward rotation and reverse backstop, which can avoid the problem of connector loosening due to equipment vibration during use and improve the stability of the connection.

[0028] In this embodiment, the anti-reverse protrusion 41 is semi-circular in shape. This semi-circular structure allows the anti-reverse protrusion 41 to slide on the sliding surface 311 and, when disassembly is required, to compress the wedge-shaped protrusion 31, causing it to elastically deform. In other embodiments, the anti-reverse protrusion 41 can also be triangular or other shapes.

[0029] In this embodiment, there are four anti-loosening protrusions 41, and the four anti-loosening protrusions 41 are evenly distributed on the inner sidewall of the connecting nut 4. The four anti-loosening protrusions 41 limit the connecting nut 4 at four positions, further improving its anti-loosening performance; in other embodiments, the number of anti-loosening protrusions 41 can also be any other number.

[0030] In this embodiment, the wedge-shaped protrusions 31 are evenly distributed on the outer wall of the housing 3, and completely cover the outer wall of the housing 3, forming a ring structure. In other embodiments, the distribution and number of the wedge-shaped protrusions 31 can be any other number, as long as they can connect with the anti-reverse protrusions 41 to achieve the anti-reverse function.

[0031] To limit the installation position of the connecting nut 4, an annular boss 32 is provided on the outer wall of the housing 3, and an annular stepped surface 42 is provided on the inner wall of the connecting nut 4. The annular stepped surface 42 can abut against the annular boss 32. During assembly, the user puts the connecting nut 4 on the outer periphery of the housing 3 and pushes the connecting nut 4 forcefully, causing the annular stepped surface 42 to press against the annular boss 32, causing it to elastically deform until the annular stepped surface 42 passes over the annular boss 32. After that, the annular boss 32 will automatically return to its original position. By limiting the annular stepped surface 42 of the connecting nut 4 through the annular boss 32, the annular stepped surface 42 can be limited to the inner side of the annular boss 32, preventing the connecting nut 4 from falling out of the housing 3 and improving the installation stability of the connecting nut 4.

[0032] In this embodiment, the housing 3 and the plug body 1 are threaded together. This threaded connection ensures connection stability and improves installation convenience, allowing the connector plug to be assembled on-site, thus enhancing ease of use. To ensure a tight seal, a sealing ring 5 is fitted onto the outer wall of the housing 3, sealingly abutting against the inner wall of the plug body 1. During assembly, the plug body 1 is fitted onto the outer periphery of the housing 3, and the connection thread 22 is fixed by rotating the housing 3 or the plug body 1. During tightening, the plug body 1 compresses the sealing ring 5 until the inner wall of the plug body 1 abuts against the sealing ring 5, creating a seal. By using the sealing ring 5, the sealing performance of the connection between the housing 3 and the plug body 1 is improved, reducing the entry of moisture and dust into the plug body 1 and extending its service life.

[0033] In this embodiment, the plug body 1, the right-angle tail shell 2, and the connecting nut 4 are all made of hard metal material, which can improve the structural rigidity of the connector plug.

[0034] To meet the wiring requirements for shielded signals, an annular mounting groove 43 is provided on the inner side wall of the connecting nut 4. An elastic shielding ring 6 is installed within the annular mounting groove 43, and the elastic shielding ring 6 is connected to the outer side wall of the plug body 1. The elastic shielding ring 6 is made of metal. During wiring, the cable's shielding layer is connected and fixed to the right-angle tail shell 2, making it electrically conductive. By providing the elastic shielding ring 6 on the connecting nut 4, the connector plug achieves electrical conductivity between the connecting nut 4 and the plug body 1. This allows the entire outer shell of the connector plug to form a complete shielding layer during use, improving the stability of signal transmission.

[0035] A core 7 is disposed within the housing 3. The core 7 is interference-fitted with the housing 3, forming a single unit. Multiple pins 8 are inserted into the core 7. One end of each pin 8 is electrically connected to the cable of the connector plug, and the other end is electrically connected to the connector socket, enabling the connector to perform an electrical connection. A pin limiting block 9 is provided at one end of the core 7, fixedly connected to the core 7, and abuts against each pin 8. The pin limiting block 9 is used to limit and fix the pins 8 within the core 7, preventing them from becoming loose when the plug and socket are connected. In this embodiment, the pin limiting block 9 is connected and fixed to the core 7 by ultrasonic welding; in other embodiments, the pin limiting block 9 can also be fixed and connected to the core 7 by other methods, such as snap-fit ​​or screw connection.

[0036] In this embodiment, there are five pins 8, and the five pins 8 are arranged in a circular array within the core 7; thus, the connector plug can connect five wires, thereby improving its transmission performance. In other embodiments, the number of pins 8 can be any other number, and this utility model does not limit this.

[0037] The right-angle tail shell 2 has multiple positioning grooves 21 at one end, arranged in a circular array on the end face of the right-angle tail shell 2. The outer wall of the plug body 1 has multiple positioning protrusions 11 arranged in a circular array, each corresponding to a positioning groove 21 and engaging with it. The engagement of the positioning protrusions 11 and the positioning grooves 21 allows for the connection and positioning of the right-angle tail shell 2 and the plug body 1. During actual assembly, the user can rotate the right-angle tail shell 2 to align different positioning grooves 21 with the positioning protrusions 11, and then engage and fix the positioning protrusions 11 with the positioning grooves 21, thereby changing the orientation of the right-angle tail shell 2. Through the engagement of multiple positioning grooves 21 and positioning protrusions 11, the user can freely adjust the installation orientation of the connector plug during installation, meeting the needs of different scenarios and improving installation convenience and practicality.

[0038] To ensure the right-angle tail shell 2 is securely connected to the plug body 1, in this embodiment, a fixing nut 10 is fitted onto the plug body 1. A connecting thread 22 is provided on the outer wall of the right-angle tail shell 2. The fixing nut 10 connects to the connecting thread 22 and abuts against the positioning protrusion 11. During assembly, after the positioning groove 21 is engaged and fixed with the corresponding positioning protrusion 11, the user can tighten the fixing nut 10, causing it to connect to the connecting thread 22 until it abuts against the positioning protrusion 11. This secures the right-angle tail shell 2 to the plug body 1. The threaded connection facilitates assembly and disassembly, improving installation convenience.

[0039] The above-described specific embodiments are preferred embodiments of this utility model, and are not intended to limit the specific scope of this utility model. The scope of this utility model includes but is not limited to the specific embodiments described above. All equivalent changes made in accordance with this utility model are within the protection scope of this utility model.

Claims

1. A connector plug with anti-loosening and anti-retraction function, characterized in that: The device includes a plug body, a housing inside the plug body, a plug assembly inside the housing, the plug assembly being inserted into the housing with an interference fit, a connecting nut being fitted onto the housing, the connecting nut being movable and limited to the housing, and the connecting nut being used to connect to the socket of the connector. The outer side wall of the rubber shell has multiple wedge-shaped protrusions evenly distributed. One side of each wedge-shaped protrusion has a sliding surface, and the other side has a backstop surface. The inner side wall of the connecting nut has a backstop protrusion at a position corresponding to the wedge-shaped protrusion. The backstop protrusion is in contact with the wedge-shaped protrusion, and can slide on the sliding surface and abut against the backstop surface.

2. The connector plug with anti-loosening and anti-retraction function according to claim 1, characterized in that: The outer side wall of the rubber shell is provided with an annular boss, and the inner side wall of the connecting nut is provided with an annular stepped surface, which can abut against the annular boss.

3. The connector plug with anti-loosening and anti-retraction function according to claim 1, characterized in that: The rubber shell is threadedly connected to the plug body, and a sealing ring is fitted on the outer side wall of the rubber shell, which seals against the inner side wall of the plug body.

4. The connector plug with anti-loosening and anti-retraction function according to claim 1, characterized in that: Both the plug body and the connecting nut are made of hard metal.

5. The connector plug with anti-loosening and anti-retraction function according to claim 4, characterized in that: The inner wall of the connecting nut is provided with an annular mounting groove, and an elastic shielding ring is provided in the annular mounting groove. The elastic shielding ring is connected to the outer wall of the plug body.

6. The connector plug with anti-loosening and anti-retraction function according to claim 1, characterized in that: The anti-reverse protrusion is semi-circular in shape, and there are four anti-reverse protrusions, which are evenly distributed on the inner sidewall of the connecting nut.

7. The connector plug with anti-loosening and anti-retraction function according to claim 1, characterized in that: The insert assembly includes a rubber core, which is inserted into the rubber shell with an interference fit. The rubber core is provided with a plurality of pins. One end of the rubber core is provided with a pin limiting block, which is fixedly connected to the rubber core and abuts against the pins respectively.

8. The connector plug with anti-loosening and anti-retraction function according to any one of claims 1-7, characterized in that: It also includes a right-angled tail shell for threading the wire, the right-angled tail shell being connected to the plug body.

9. The connector plug with anti-loosening and anti-retraction function according to claim 8, characterized in that: The right-angle tail shell has multiple positioning grooves on one end face, which are arranged in a circular array. The outer side wall of the plug body has multiple positioning protrusions arranged in a circular array, which correspond one-to-one with the positioning grooves and are engaged with the positioning grooves.

10. The connector plug with anti-loosening and anti-retraction function according to claim 9, characterized in that: A fixing nut is fitted onto the plug body, and a connecting thread is provided on the outer side wall of the right-angle tail shell. The fixing nut is connected to the connecting thread, and the fixing nut abuts against the positioning protrusion.

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