Locking structure of connector

Abstract

The utility model provides a locking structure of a connector, the connector comprises a socket and a plug, the locking structure comprises a first locking structure, the first locking structure comprises a first part and a second part, the locking structure further comprises a second locking structure, and the second locking structure comprises a third part and a fourth part; the third part is provided with a movable structure and a fixed structure. According to the utility model, not only is the primary lock for the plug and the socket provided, but also the secondary lock is provided, the secondary lock can be added for the connection of the plug and the socket in the secondary lock, the primary lock can be locked so as not to be opened by mistake, the self-locking of the secondary lock is realized, the locking safety is ensured, and meanwhile, the structures can be arranged in a combined manner, the construction is compact, and the operation is simple.

Description

Technical Field

[0001] The utility model relates to a locking structure of a connector, in particular to a locking structure of a low-voltage connector used in a driving environment such as an automobile. Background Art

[0002] Low-voltage connectors used in automotive applications often feature a locking mechanism. Once connected, the connector's receptacle and male plug are locked in place to prevent loosening or disconnection due to vehicle vibration, inertia, and other factors during prolonged use. Furthermore, a locking mechanism is provided to protect this locking mechanism. However, large connectors can only utilize two parallel locking mechanisms. Therefore, the possibility of loosening and disconnection due to vehicle vibration, inertia, and other factors can still occur. Utility Model Content

[0003] The purpose of this utility model is to provide a connector locking structure that not only has a primary lock for the plug and socket, but also a secondary lock, providing better locking security and improving the reliability of the connection between the plug and socket. To this end, the utility model adopts the following technical solutions:

[0004] A locking structure for a connector, comprising a socket and a plug, wherein the locking structure comprises a first locking structure, wherein the first locking structure comprises a first part and a second part. When the plug is inserted into the socket, the first part and the second part form a locking fit to prevent the plug from being pulled out. The first part is configured as a movable structure to lock and unlock the second part, wherein the first part is characterized in that:

[0005] The locking structure further includes a second locking structure, wherein the second locking structure includes a third portion and a fourth portion;

[0006] The third part is provided with a movable structure and a fixed structure, the movable structure including an anti-unlocking mating portion for the first part, a first locking mating portion for the fourth part, and a second locking mating portion for the fixed structure; the third part and the first part are provided on a first base, the fourth part and the second part are provided on a second base, the first base is one of a plug and a socket, and the second base is the other of the plug and the socket;

[0007] The movable structure of the third part has an unlocking position and a locking position on the first base; the positions of the anti-unlocking matching portion, the first locking matching portion, and the second locking matching portion are associated with each other. When the third part is in the locked position, the fixed portion of the third part locks the second locking matching portion of the third part, and the first locking matching portion of the third part locks the fourth part to prevent the plug from being pulled out together with the locking matching of the first part and the second part. The anti-unlocking matching portion of the third part locks the first part to prevent the first lock structure from being unlocked.

[0008] The movable structure is provided with an operating portion for unlocking and locking operations.

[0009] On the basis of adopting the above technical solutions, the present invention may also adopt the following further technical solutions, or use these further technical solutions in combination:

[0010] The movable structure of the third part is a transverse movable structure, and the sliding guide structure of the third part is provided on the first base.

[0011] The first locking fitting part of the fourth part is provided with a first limit point, the movable structure of the third part is provided with a transversely open locking groove corresponding to the first limit point, the fixed structure of the third part is provided with a front limit structure and a rear limit fitting structure, and the movable structure of the third part includes a front limit fitting structure and a rear limit fitting structure for the second locking fitting part, so that the movable structure in the locked position is locked in the left and right directions; and the front limit structure is a cam fitting structure, and the movable structure can be unlocked and locked by operating the operating part to slide laterally.

[0012] The fourth part is provided with a front top structure, and the cam is installed on the elastic arm. When the plug is inserted into the socket, the front top structure acts on the elastic arm through the cam to make it retreat, making the locking operation of the movable structure easier.

[0013] The elastic arm corresponds to the unlocking position, and on the other side of the cam, an abutment position that cooperates with the front limit structure is set. The fixed structure of the third part is provided with a limit structure that prevents the movable structure from laterally exiting the guide structure, and the rear limit cooperation structure is set on the second elastic arm.

[0014] The movable structure of the third part is located above the first part, and the first part is provided with a lock column. The bottom of the movable structure of the third part is provided with a limit to prevent the lock column from lifting and a groove to allow the lock column to lift. When in the locked position, the limit is aligned with the lock column to prevent the first lock structure from being unlocked. When in the unlocked position, the groove is aligned with the lock column.

[0015] The first part is provided with a longitudinal lever structure and a pressing operation part, and by pressing the pressing operation part, the first part releases the locking cooperation with the second part, and the longitudinal direction is the plugging and unplugging direction of the plug; the middle part of the lever structure is connected to the first base, the pressing operation part is provided on one side of the lever structure, and the other side of the lever structure is provided with a block cooperating with the second part and the lock cylinder.

[0016] The second portion is located in front of the first limiting point.

[0017] The movable structure of the third part is a flat slider that can slide left and right.

[0018] Due to the technical solution of the utility model, not only is there a primary lock for the plug and socket, but also a secondary lock. The secondary lock can add a second lock to the connection between the plug and the socket, and can also lock the primary lock to prevent it from being opened by mistake and realize the self-locking of the secondary lock, thereby ensuring the safety of the locking. At the same time, these structures can be combined and arranged, with a compact structure and simple operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a connection diagram of the locking structure of the present invention.

[0020] Figure 2 This is a schematic diagram of one side of the third part of the locking structure embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of another side of the third part of the locking structure embodiment of the present invention.

[0022] Figure 4 This is a front view of the socket when the plug and socket are not connected, viewed from the front.

[0023] Figure 5 for Figure 4 AA cross-sectional view.

[0024] Figure 6 for Figure 5 Magnified view of part B in the figure.

[0025] Figure 7 for Figure 5 Magnified view of part C in the figure.

[0026] Figure 8 This is a schematic diagram of the socket viewed from the rear end.

[0027] Figure 9 This is a front view of the socket from the rear end when the plug and socket are not inserted into the connection.

[0028] Figure 10After the plug is inserted into the socket and before it is locked, Figure 9 GG cross-sectional view.

[0029] Figure 11 for Figure 10 Magnified view of part D in the figure.

[0030] Figure 12 After the plug is inserted into the socket and locked, Figure 9 GG cross-sectional view.

[0031] Figure 13 After the plug is inserted into the socket and locked, Figure 9 JJ cross-sectional view.

[0032] Figure 14 for Figure 10 EE cross-sectional view.

[0033] Figure 15 for Figure 10 FF cross-sectional view.

[0034] Figure 16 for Figure 14 Magnified view of the K part.

[0035] Figure 17 for Figure 15 Enlarged view of the L part.

[0036] Figure 18 for Figure 12 JJ cross-sectional view.

[0037] Figure 19 for Figure 18 Enlarged view of the M part. DETAILED DESCRIPTION

[0038] Referring to the accompanying drawings, the present invention provides a locking structure for a connector, the connector comprising a socket 100 and a plug 200, the locking structure comprising a first locking structure, the first locking structure comprising a first portion and a second portion, the first locking structure being a first lock, wherein when the plug 200 is inserted into the socket 100, the first portion and the second portion form a locking engagement to prevent the plug 200 from being removed, wherein the first portion is configured as a movable structure capable of locking and unlocking the second portion.

[0039] The locking structure also includes a second locking structure, which acts as a secondary lock. This second locking structure not only locks the first locking structure, but also has its own locking structure and can lock the plug 200 and the socket 100 together, preventing the plug 200 from being removed together with the first locking structure. This is described in detail below.

[0040] The second lock structure includes a third part and a fourth part; wherein, the third part is provided with a movable structure 3 and a fixed structure, the fixed structure is fixedly set on the socket 100, and the movable structure includes an anti-unlocking matching part for the first part and a first locking matching part for the fourth part and a second locking matching part for the fixed structure; the third part and the first part are arranged on the first base (the socket 100 in this embodiment), and the fourth part and the second part are arranged on the second base (the plug 200 in this embodiment).

[0041] The movable structure 3 of the third part has an unlocked position and a locked position on the socket 100. The positions of the anti-unlocking mating portion, the first locking mating portion, and the second locking mating portion are correlated. When the third part is in the locked position, the fixed portion of the third part locks the second locking mating portion of the third part, and the first locking mating portion of the third part locks the fourth part, thereby preventing the plug from being pulled out together with the locking mating of the first and second parts. The anti-unlocking mating portion of the third part locks the first part and prevents the first and second parts from being unlocked. In the unlocked position, all the above locking states are unlocked.

[0042] The movable structure 3 is provided with an operating portion 30 for unlocking and locking operations. Reference numeral 301 is an unlocking force application surface.

[0043] The movable structure 3 of the third part is a transverse movable structure. In this embodiment, the movable structure 3 is a flat slider that can slide left and right. The socket 100 is provided with a sliding guide structure 101 (such as a guide rail) of the movable structure 3.

[0044] The first locking and matching part of the fourth part is provided with a first limiting point 41, the movable structure of the third part is provided with a transverse opening lock groove 31 corresponding to the first limiting point 41, the fixed structure of the third part is provided with a front limiting structure 131 and a rear limiting matching structure 132, and the movable structure of the third part includes the front limiting matching structure 32 (such as Figure 13 As shown, after locking, the movable structure 3 is prevented from moving to the left to unlock) and the rear limit matching structure 33 (as shown Figure 13 As shown, after locking, the movable structure 3 is prevented from moving to the right to unlock), so that the movable structure 3 in the locked position is locked in the left and right directions; and the front limit matching structure 32 is a cam connected to the elastic structure, and the movable structure can be unlocked and locked by operating the operating part 30 to slide laterally.

[0045] The fourth part is provided with a front top structure 42, and the cam is installed on the elastic arm 34 (the elastic arm serves as the elastic structure). When the plug 200 is inserted into the socket 100, the front top structure 42 first presses against the cam, and then acts on the elastic arm 34 through the cam to make it retreat. At this time, the movable structure 3 is pushed laterally, which will make it easier for the front limit structure to flip over the cam and lock, making the locking operation of the movable structure easier.

[0046] The elastic arm 34 corresponds to the unlocked position, and on the other side of the cam, an abutment position 35 is provided that cooperates with the front limiting structure 131. This prevents the elastic arm 34 from excessively rebounding and thus preventing the alignment with the front top structure 42 from shifting. The fixed structure of the third portion is provided with a limiting structure 133 that prevents the movable structure 3 from laterally exiting the guide structure. The limiting structure 133 can cooperate with the rear side of the rear limiting matching structure 33. The front side of the rear limiting matching structure 33 can be configured as an inclined structure. The rear limiting matching structure 33 is provided on the second elastic arm 36, and can be compressed to retreat inward, allowing it to pass inside the limiting structure 133 during assembly.

[0047] The movable structure 3 of the third part is located above the first part. The first part is provided with a lock column 51. The bottom of the movable structure of the third part is provided with a limit 38 for preventing the lock column 51 from lifting and a groove 37 for allowing the lock column 51 to lift. When in the locked position, the limit 38 is aligned with the lock column 51 to prevent the first lock structure from being unlocked. When in the unlocked position, the groove 37 is aligned with the lock column 51 to allow the lock column 51 to be lifted.

[0048] The first portion is provided with a longitudinal lever structure 5 and a pressing operation portion 52. Pressing the pressing operation portion 52 releases the first portion from its locking engagement with the second portion. The longitudinal direction is the insertion and removal direction of the plug 200. The middle portion of the lever structure is connected to the socket 100. The pressing operation portion 52 is provided on one side of the lever structure 5. The other side of the lever structure 5 is provided with a block 53 that engages with the second portion, which is the block 6 provided on the plug. By utilizing the properties of the plastic material, pressing one end of the lever structure causes the other end to rise appropriately. When the pressure is released, the other end descends and returns to its original position.

[0049] The second portion, ie, the block 6 , is located in front of the first limiting point 41 .

[0050] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in this field within the field of the present invention are included in the protection scope of the present invention.

[0051] It should be noted that the terms "including" and "having" and any variations thereof in the specification and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "installed", "set", "provided with", "connected", "connected", and "socketed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0052] In the description of this utility model, it should be understood that terms such as "one end," "the other end," "outer side," "inner side," "horizontal," "end," "length," "outer end," "left," and "right" are used to indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are used solely to facilitate the description of this utility model and to simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "first" and "second" are used solely for brevity of description and do not indicate or imply relative importance.

Claims

1. A locking structure for a connector, comprising a socket and a plug, the locking structure comprising a first locking structure, the first locking structure comprising a first portion and a second portion, wherein when the plug is inserted into the socket, the first portion and the second portion form a locking fit to prevent the plug from being pulled out, the first portion being configured as a movable structure capable of locking and unlocking the second portion, wherein: The locking structure further includes a second locking structure, wherein the second locking structure includes a third portion and a fourth portion; The third part is provided with a movable structure and a fixed structure, the movable structure including an anti-unlocking mating portion for the first part, a first locking mating portion for the fourth part, and a second locking mating portion for the fixed structure; the third part and the first part are provided on a first base, the fourth part and the second part are provided on a second base, the first base is one of a plug and a socket, and the second base is the other of the plug and the socket; The movable structure of the third part has an unlocking position and a locking position on the first base; the positions of the anti-unlocking matching portion, the first locking matching portion, and the second locking matching portion are associated with each other. When the third part is in the locked position, the fixed portion of the third part locks the second locking matching portion of the third part, and the first locking matching portion of the third part locks the fourth part to prevent the plug from being pulled out together with the locking matching of the first part and the second part. The anti-unlocking matching portion of the third part locks the first part to prevent the first lock structure from being unlocked. The movable structure is provided with an operating portion for unlocking and locking operations.

2. A locking structure for a connector according to claim 1, characterized in that: The movable structure of the third part is a transverse movable structure, and the sliding guide structure of the third part is provided on the first base.

3. A locking structure of a connector according to claim 2, characterized in that: The first locking fitting part of the fourth part is provided with a first limit point, the movable structure of the third part is provided with a transversely open locking groove corresponding to the first limit point, the fixed structure of the third part is provided with a front limit structure and a rear limit fitting structure, and the movable structure of the third part includes a front limit fitting structure and a rear limit fitting structure for the second locking fitting part, so that the movable structure in the locked position is locked in the left and right directions; and the front limit structure is a cam fitting structure, and the movable structure can be unlocked and locked by operating the operating part to slide laterally.

4. A locking structure for a connector according to claim 3, characterized in that: The fourth part is provided with a front top structure, and the cam is installed on the elastic arm. When the plug is inserted into the socket, the front top structure acts on the elastic arm through the cam to make it retreat, making the locking operation of the movable structure easier.

5. A locking structure for a connector according to claim 4, characterized in that: The elastic arm corresponds to the unlocking position, and on the other side of the cam, an abutment position that cooperates with the front limit structure is set. The fixed structure of the third part is provided with a limit structure that prevents the movable structure from laterally exiting the guide structure, and the rear limit cooperation structure is set on the second elastic arm.

6. The locking structure of a connector according to claim 2, wherein: The movable structure of the third part is located above the first part, and the first part is provided with a lock column. The bottom of the movable structure of the third part is provided with a limit to prevent the lock column from lifting and a groove to allow the lock column to lift. When in the locked position, the limit is aligned with the lock column to prevent the first lock structure from being unlocked. When in the unlocked position, the groove is aligned with the lock column.

7. A locking structure for a connector according to claim 6, characterized in that: The first part is provided with a longitudinal lever structure and a pressing operation part, and by pressing the pressing operation part, the first part releases the locking cooperation with the second part, and the longitudinal direction is the plugging and unplugging direction of the plug; the middle part of the lever structure is connected to the first base, the pressing operation part is provided on one side of the lever structure, and the other side of the lever structure is provided with a block cooperating with the second part and the lock cylinder.

8. The locking structure of a connector according to claim 3, wherein: The second portion is located in front of the first limiting point.

9. A locking structure for a connector according to claim 1, 2, 3, 4, 5, 6, 7 or 8, characterized in that: The movable structure of the third part is a flat slider that can slide left and right.

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