A plug assembly with a locking structure

Abstract

The utility model relates to a plug assembly with locking structure, including female plug, male plug and tightener, the male plug is inserted in the inside of female plug, and the male plug is detachable connection with the female plug through tightener, be provided with a plurality of conductive pin in the inside of male plug, correspond to a plurality of conductive pin, the inside of female plug is set up with a plurality of male conductive pin insertion butt joint hole, the tightener includes two butt joint housings, two butt joint housings are installed in the left and right sides of female plug respectively, with the female plug through, this plug assembly with locking structure, through the locking structure of tightener, the mechanical clamping cooperation spring elasticity of protruding portion and groove, can effectively resist vibration, pull and other external force, prevent male plug accidental loosening or separation, solved the problem that traditional straight insertion type plug is easy to loosen, improved the stability of circuit connection.

Description

Technical Field

[0001] This utility model relates to the field of plug technology, specifically a plug assembly with a locking structure. Background Technology

[0002] In modern electronic equipment and power transmission systems, plug assemblies, as key components for circuit connections, are widely used in industrial production, daily life, and various special scenarios. From connecting electrical equipment in industrial automated production lines to connecting various appliances to power sources in homes, and even for circuit connections in special environments such as underwater operations and aerospace equipment, plug assemblies play an indispensable role. Their performance directly affects the operational stability and safety of the entire system. Traditional plug assemblies typically employ a simple, direct-plug structure. While this design offers convenience to some extent, it reveals numerous drawbacks under complex operating conditions and external interference. In industrial environments, vibrations from equipment operation and frequent pulling or stretching of cables can easily cause the plug and socket to loosen or even detach unexpectedly, leading to circuit interruptions, production disruptions, and in severe cases, equipment damage and economic losses. For example, on automated production lines in large factories, the continuous vibrations from prolonged equipment operation cause ordinary plugs to loosen frequently after a period of use. This necessitates frequent checks and re-plugging by workers and can also lead to interruptions in running processes due to sudden power outages, resulting in product quality issues. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a plug assembly with a locking structure, which solves the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a plug assembly with a locking structure, comprising a female plug, a male plug, and a tightening device; The male plug is inserted inside the female plug, and the male plug is detachably connected to the female plug via a tightening device; The male plug has multiple conductive pins inside, and the female plug has several mating holes for inserting the conductive pins. The tightening device includes two docking housings, which are respectively installed on the left and right sides of the female plug and communicate with the female plug. A clamping plate is hinged to each of the left and right sides of the male plug through a hinge shaft. The two clamping plates are respectively located inside the two docking housings. A spring is provided between the clamping plate and the male plug. Each of the two clamping plates has a protrusion on its opposite side. Corresponding to the two protrusions, a groove is provided on the opposite side wall of each of the two mating shells for the protrusion to be inserted.

[0005] Furthermore, the frontal projection shape of the protrusion and the groove it mates with is a right triangle, and the inclined surface of the protrusion faces upward.

[0006] Furthermore, the top of the male plug is recessed downwards to form a circular recess, and several conductive pins are vertically mounted on the inner bottom wall of the recess.

[0007] Furthermore, the female plug has a boss inside, and several of the mating holes are formed inside the boss; Furthermore, the concave portion is fitted onto the outside of the protrusion.

[0008] Furthermore, the concave portion has at least one limiting rib integrally formed on its peripheral wall, and corresponding to the limiting rib, at least one limiting groove is provided on the outer side of the boss for the limiting rib to be inserted.

[0009] Furthermore, the limiting rib is flush with the top of the recessed opening, and the length of the limiting rib is greater than the length of the conductive pin.

[0010] Compared with the prior art, the technical solution of this application has the following beneficial effects: 1. This plug assembly with a locking structure, through the locking structure of the tightener, the mechanical engagement of the protrusion and the groove, combined with the elasticity of the spring, can effectively resist external forces such as vibration and pulling, preventing the male plug from accidentally loosening or coming off, solving the problem of easy loosening of traditional straight plugs, and improving the stability of circuit connection.

[0011] 2. This plug assembly with a locking structure requires no additional operation of the locking mechanism when inserted; the protrusion can slide naturally into the groove along the slope to achieve automatic locking. When disassembling, simply press the clamp to release the lock. The operation is simple and effortless, balancing connection reliability and ease of operation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the disassembled structure of this utility model; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This is a top-view structural diagram of the female plug and male plug of this utility model.

[0013] In the diagram: 1. Female plug; 101. Boss; 102. Limiting groove; 2. 201. Concave part; 202. Limiting rib; Male plug; 3. Tightener; 301. Connecting housing; 302. Clamping plate; 303. Protrusion; 304. Spring; 4. Conductive pin; 5. Connecting hole. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1-4 In this embodiment, a plug assembly with a locking structure is provided to achieve a stable connection between the male and female plugs, effectively preventing loosening or detachment caused by external forces such as vibration and pulling, thereby improving the stability and safety of the circuit connection.

[0016] Specifically, the overall structure of the plug assembly includes a female plug 1, a male plug 2, a tightener 3, conductive pins 4, and a mating hole 5.

[0017] The female plug 1 and the male plug 2 are the main structures of the plug assembly. The male plug 2 can be inserted into the female plug 1 to realize the circuit connection. The female plug 1 has a boss 101 inside, and the boss 101 has several mating holes 5 for the conductive pins 4 of the male plug 2 to be inserted. The boss 101 has at least one limiting groove 102 on the outside, which works with the limiting rib 202 of the male plug 2 to achieve positioning.

[0018] In detail, the top of the male plug 2 is recessed downward to form a circular recess 201. The recess 201 is fitted onto the outside of the boss 101 of the female plug 1. At least one limiting rib 202 is integrally formed on its peripheral wall. The limiting rib 202 is flush with the top of the opening of the recess 201 and its length is greater than the length of the conductive pin 4. When inserted, it can enter the limiting groove 102 before the conductive pin 4, which plays the role of guiding and protecting the conductive pin 4. Several conductive pins 4 are vertically installed on the inner bottom wall of the recess 201, corresponding to the docking hole 5 of the female plug 1, to realize circuit conduction.

[0019] In actual setup, when the recessed part 201 is fitted with the protrusion 101, the conductive pin 4 is precisely inserted into the mating hole 5. This structure allows the conductive pin 4 to be encased inside the plug, reducing the corrosion of the pin by external dust and moisture.

[0020] More specifically, the tightening device 3 is used to achieve a detachable connection between the male plug 2 and the female plug 1 and ensure a stable connection. It includes two mating housings 301, two clamping plates 302, and a spring 304. The two mating housings 301 are respectively installed on the left and right sides of the female plug 1 and are in communication with the female plug 1, providing a space for the clamping plates 302 of the male plug 2. Each side of the male plug 2 is hinged with a clamping plate 302 via a hinge shaft. The two clamping plates 302 are located inside the two mating housings 301 respectively. A spring 304 is provided between the clamping plates 302 and the male plug 2. The elastic force of the spring 304 causes the clamping plates 302 to tend to open outward.

[0021] Furthermore, each of the two clamping plates 302 has a protrusion 303 on its opposite side. Corresponding to the two protrusions 303, a groove is provided on the opposite side wall inside the two mating shells 301 for the protrusions 303 to be inserted. The front view projection shape of the protrusions 303 and the grooves they match is a right triangle, and the inclined surface of the protrusions 303 faces upward, so that when the male plug 2 is inserted, the protrusions 303 can slide into the groove along the inclined surface, while preventing loosening in the opposite direction.

[0022] In actual use, when the male plug 2 is inserted into the female plug 1, the clamp 302 enters the mating housing 301. The elastic force of the spring 304 pushes the protrusion 303 into the groove. The locking is achieved by the engagement of the triangular protrusion 303 and the groove, preventing the male plug 2 from accidentally coming out. Moreover, the right-angled triangular protrusion 303 can slide naturally into the groove along the slope without additional operation. When pulled out in the opposite direction, the right-angled side of the protrusion 303 fits with the right-angled side of the groove, forming a mechanical lock. A certain amount of external force needs to be applied to press the clamp 302 to release the lock, effectively resisting external interference such as vibration and pulling.

[0023] The working principle of the above embodiments is as follows: 1. When connecting male plug 2 and female plug 1, align the concave portion 201 of male plug 2 with the protrusion 101 of female plug 1, align the limiting rib 202 with the limiting groove 102, and apply insertion force. During insertion, the limiting rib 202 first enters the limiting groove 102, guiding male plug 2 to move in the correct direction and preventing misalignment of conductive pins 4. As male plug 2 is inserted, the clamping plates 302 on both sides enter the mating housing 301. The inner wall of the mating housing 301 presses against the clamping plates 302, causing the clamping plates 302 to overcome... The spring 304 contracts inward; when the male plug 2 is inserted into place, the protrusion 303 of the clamp 302 aligns with the groove of the mating housing 301, and the spring 304 pushes the clamp 302 outward, so that the protrusion 303 is embedded in the groove. Since the protrusion 303 and the groove are right-angled triangular structures, the right-angled side of the protrusion 303 fits with the right-angled side of the groove, forming a mechanical lock. At this time, the male plug 2 is firmly locked in the female plug 1, and the conductive pin 4 is fully inserted into the mating hole 5, so that the circuit is connected.

[0024] 2. When it is necessary to separate the male plug 2 and the female plug 1, the clamps 302 on both sides should be pressed manually so that the clamps 302 can overcome the elastic force of the spring 304 and retract inward, causing the protrusion 303 to disengage from the groove and release the locking state; at this time, pull out the male plug 2, the limiting rib 202 slides along the limiting groove 102, and the conductive pin 4 is pulled out from the mating hole 5 until the male plug 2 and the female plug 1 are completely separated.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plug assembly with a locking structure, characterized in that: Includes female plug, male plug, and tightening device; The male plug is inserted inside the female plug, and the male plug is detachably connected to the female plug via a tightening device; The male plug has multiple conductive pins inside, and the female plug has several mating holes for inserting the conductive pins. The tightening device includes two docking housings, which are respectively installed on the left and right sides of the female plug and communicate with the female plug. A clamping plate is hinged to each of the left and right sides of the male plug through a hinge shaft. The two clamping plates are respectively located inside the two docking housings. A spring is provided between the clamping plate and the male plug. Each of the two clamping plates has a protrusion on its opposite side. Corresponding to the two protrusions, a groove is provided on the opposite side wall of each of the two mating shells for the protrusion to be inserted.

2. A plug assembly with a locking structure according to claim 1, characterized in that: The frontal projection shape of the protrusion and the groove it mates with is a right triangle, and the inclined surface of the protrusion faces upward.

3. A plug assembly with a locking structure according to claim 1, characterized in that: The top of the male plug is recessed downwards to form a circular recess, and several conductive pins are vertically mounted on the inner bottom wall of the recess.

4. A plug assembly with a locking structure according to claim 3, characterized in that: The female plug has a boss inside, and several of the mating holes are formed inside the boss. Furthermore, the concave portion is fitted onto the outside of the protrusion.

5. A plug assembly with a locking structure according to claim 4, characterized in that: The concave portion has at least one limiting rib integrally formed on its peripheral wall. Corresponding to the limiting rib, at least one limiting groove is provided on the outer side of the boss for the limiting rib to be inserted.

6. A plug assembly with a locking structure according to claim 5, characterized in that: The limiting rib is flush with the top of the recessed opening, and the length of the limiting rib is greater than the length of the conductive pin.

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