Quick-plug anti-drop plug
By adopting an anti-disconnection structure with axial spring extension in the plug of new energy vehicles, the problem of anti-disconnection failure caused by lateral bending of the spring is solved, and a stable connection of the plug is achieved.
Patent Information
- Application Number
- CN202520225527.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-02-12
AI Technical Summary
The springs in the plugs of existing new energy vehicles are prone to lateral bending, causing the anti-disconnection function to fail.
The anti-detachment structure adopts a spring axial extension and retraction design, including claws, buttons, connecting plates, protrusions and springs. The axial movement of the buttons controls the rotation of the claws, preventing the spring from bending laterally and improving the stability of the anti-detachment function.
The stability of the plug's anti-dislodgement function has been improved, preventing the spring from bending laterally and extending its service life.
Smart Images

Figure CN223942129U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of charging plug technology for new energy vehicles, and in particular to a quick-connect anti-disconnect plug. Background Technology
[0002] Existing new energy vehicle plugs are all equipped with anti-detachment structures, as shown in the patent application number CN201220275844.3. It includes a plug and a charging base. The upper side of the charging base is provided with a positioning groove. The upper side of the plug is hinged to a positioning rod via a hinge support. The front end of the positioning rod is provided with a short head, and the rear end is provided with a long handle. A spring is provided between the long handle and the plug. After the plug is inserted into the charging base, the short head is inserted into the positioning groove to prevent the plug from coming off the charging base. The plug can also be controlled by pressing the long handle to drive the short head to move up and down, thereby controlling the short head to be inserted into or pulled out of the positioning groove.
[0003] The existing plug's long stem rotates around the hinge support, and the spring on its lower side does not strictly extend and contract axially. After prolonged use, the spring is prone to lateral bending, which in turn causes the plug's anti-dislodgement function to fail. Utility Model Content
[0004] To address the shortcomings of existing plugs where the spring is prone to lateral bending, causing the plug's anti-dislodgement function to fail, this invention proposes a quick-connect anti-dislodgement plug with an axially extending spring that is less prone to lateral bending, thus improving the stability of the anti-dislodgement function.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A quick-connect anti-dislodge plug includes a plug body and an anti-dislodge structure. The plug body is used to connect to a socket. The socket has a slot on its upper side, and the plug body has an installation groove on its upper side. The anti-dislodge structure includes a claw, a button, a connecting plate, a protrusion, and a spring. The middle part of the claw is hinged to the plug body. A locking head is provided on the lower side of the front end of the claw, which engages with the slot. An elongated hole is provided along the length of the rear end of the claw. The protrusion is slidably connected in the elongated hole and is fixedly connected to the button through the connecting plate. The button is slidably connected in the installation groove. The upper side of the button protrudes from the upper side of the plug body. The spring is vertically installed between the button and the bottom of the installation groove.
[0007] With the above settings, when the button is pressed, the button rotates the pawl through the protrusion and the elongated hole. When the button moves, the spring extends and contracts axially, making the spring less prone to lateral bending and improving the stability of the anti-dislodgement function.
[0008] Furthermore, hinged supports are provided on both the left and right sides of the claw, and the hinged supports are fixedly connected to the plug body. The middle part of the claw is hinged to the plug body through the hinged supports.
[0009] Furthermore, the hinged support is provided with a rotating groove, in which a rotating shaft is rotatably connected, and the end of the rotating shaft is threadedly connected to the side of the chuck.
[0010] The above settings facilitate the installation of the anti-detachment structure.
[0011] Furthermore, a receiving groove is provided at the rear end of the claw, and an elongated hole is provided on the side of the receiving groove and communicates with the receiving groove, with the connecting plate extending into the receiving groove.
[0012] The above settings enhance the compactness and aesthetics of the anti-loosening structure.
[0013] Furthermore, an upper limit protrusion is provided on the lower side of the button, and a lower limit protrusion is provided at the bottom of the mounting slot. The upper end of the spring is fitted onto the upper limit protrusion, and the lower end of the spring is fitted onto the lower limit protrusion.
[0014] The above settings further enhance the stability of the spring.
[0015] Furthermore, the lower side of the front end of the claw abuts against the upper side of the plug body, and the plug body is provided with a clearance groove on the lower side of the rear end of the claw so that the rear end of the claw can rotate downward. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of a plug being inserted into a socket, as shown in the embodiment.
[0017] Figure 2 for Figure 1 A sectional view.
[0018] Figure 3 This is a schematic diagram of the plug used in an embodiment. Detailed Implementation
[0019] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.
[0020] like Figures 1 to 3 As shown, a quick-connect anti-dislodge plug includes a plug body 2 and an anti-dislodge structure. The plug body 2 is used to connect with a socket 4. The socket 4 has a slot 5 on its upper side, and the plug body 2 has an installation groove 6 on its upper side. The anti-dislodge structure includes a claw 7, a button 8, a connecting plate 9, a protrusion 10, and a spring 11. The middle part of the claw 7 is hinged to the plug body 2. A locking head 12 is provided on the lower side of the front end of the claw 7. The locking head 12 is inserted into the slot 5. An elongated hole 13 is provided at the rear end of the claw 7 along its length. The protrusion 10 is slidably connected in the elongated hole 13 and is fixedly connected to the button 8 through the connecting plate 9. The button 8 is slidably connected in the installation groove 6. The upper side of the button 8 protrudes from the upper side of the plug body 2. The spring 11 is vertically installed between the button 8 and the bottom of the installation groove 6.
[0021] With the above settings, when button 8 is pressed, button 8 causes the claw 7 to rotate via the protrusion 10 and the elongated hole 13. When button 8 moves, spring 11 extends and retracts axially, and spring 11 is not easy to bend laterally, thus improving the stability of the anti-disengagement function.
[0022] The plug of this application is initially, such as Figure 3 As shown, spring 11 is in its natural state, with its elastic force essentially zero. Protrusion 10 is near the front end of the elongated hole 13. In use, pressing down on button 8 causes it to move downwards along the mounting groove 6, axially compressing spring 11. Button 8, via connecting plate 9 and protrusion 10, causes the rear end of claw 7 to rotate downwards. Correspondingly, the front end of claw 7 and claw 7 rotate upwards. Inserting the plug into socket 4 and releasing the button causes spring 11 to spring upwards axially, pushing button 8 upwards. Button 8, via connecting plate 9 and protrusion 10, causes the rear end of claw 7 to rotate upwards, causing the corresponding front end of claw 7 to rotate downwards and engage in the slot 5. Figure 1 and Figure 2 As shown, at this time, the locking head 12 prevents the plug from disengaging from the socket 4. After pressing down the button 8, the locking head 12 disengages upward from the slot 5, allowing the plug to be removed from the socket 4.
[0023] As one implementation method, hinged supports 14 are provided on both the left and right sides of the claw 7. The hinged supports 14 are fixedly connected to the plug body 2, and the middle part of the claw 7 is hinged to the plug body 2 through the hinged supports 14.
[0024] As one implementation, the hinged support 14 is provided with a rotating groove, in which a rotating shaft 15 is rotatably connected, and the end of the rotating shaft 15 is threadedly connected to the side of the pawl 7.
[0025] The above settings facilitate the installation of the anti-detachment structure.
[0026] When installing the anti-detachment structure of this application, the protrusion 10 is inserted into the elongated hole 13 to connect the button 8 and the claw 7. The spring 11 is first installed on the lower side of the button 8, and then the button 8 is embedded into the mounting groove 6. The middle part of the claw 7 is placed between the hinge support 14. After the rotating shaft 15 passes through the rotating groove and is screwed into the claw 7, the installation of the anti-detachment structure is completed.
[0027] As one implementation, the rear end of the claw 7 is provided with a receiving groove 16, the elongated hole 13 is provided on the side of the receiving groove 16 and communicates with the receiving groove 16, and the connecting plate 9 extends into the receiving groove 16.
[0028] The above settings enhance the compactness and aesthetics of the anti-loosening structure.
[0029] The front end of the connecting plate 9 in this application is hidden in the claw 7, which improves the compactness and aesthetics of the anti-detachment structure.
[0030] As one implementation method, an upper limit protrusion 17 is provided on the lower side of button 8, a lower limit protrusion 18 is provided at the bottom of mounting groove 6, the upper end of spring 11 is sleeved on the upper limit protrusion 17, and the lower end of spring 11 is sleeved on the lower limit protrusion 18.
[0031] The above settings further enhance the stability of spring 11.
[0032] The upper limit protrusion 17 and the lower limit protrusion 18 of this application are both circular in cross-section, with the outer diameter being the same as the inner diameter of the spring 11. The upper end of the spring 11 is fitted onto the upper limit protrusion 17 and will not move left or right. The lower end of the spring 11 is fitted onto the lower limit protrusion 18 and will not move left or right, so that the spring 11 will not tilt during operation and will extend and retract along the axial direction, preventing the spring 11 from bending laterally.
[0033] As one implementation, the lower front side of the claw 7 abuts against the upper side of the plug body 2, and the plug body 2 is provided with a relief groove 19 on the lower rear side of the claw 7 so that the rear end of the claw 7 can rotate downward.
[0034] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.
Claims
1. A quick-connect anti-dislodgement plug, characterized in that, The device includes a plug body and an anti-disengagement structure. The plug body is used to connect to a socket. The socket has a slot on its upper side, and the plug body has a mounting groove on its upper side. The anti-disengagement structure includes a claw, a button, a connecting plate, a protrusion, and a spring. The middle part of the claw is hinged to the plug body. A locking head is provided on the lower side of the front end of the claw, and the locking head is engaged in the slot. An elongated hole is provided along the length direction at the rear end of the claw. The protrusion is slidably connected in the elongated hole and is fixedly connected to the button through the connecting plate. The button is slidably connected in the mounting groove. The upper side of the button protrudes from the upper side of the plug body. The spring is vertically installed between the button and the bottom of the mounting groove.
2. The quick-connect anti-dislodgement plug according to claim 1, characterized in that, The claw is provided with hinged supports on both the left and right sides. The hinged supports are fixedly connected to the plug body, and the middle part of the claw is hinged to the plug body through the hinged supports.
3. A quick-connect anti-dislodgement plug according to claim 2, characterized in that, The hinge support is provided with a rotating groove, and a rotating shaft is rotatably connected in the rotating groove. The end of the rotating shaft is threadedly connected to the side of the chuck.
4. A quick-connect anti-dislodgement plug according to claim 1, characterized in that, The rear end of the claw is provided with a receiving groove, the elongated hole is provided on the side of the receiving groove and communicates with the receiving groove, and the connecting plate extends into the receiving groove.
5. A quick-connect anti-dislodgement plug according to claim 1, characterized in that, The button has an upper limit protrusion on its lower side, the mounting groove has a lower limit protrusion at its bottom, the upper end of the spring is fitted onto the upper limit protrusion, and the lower end of the spring is fitted onto the lower limit protrusion.
6. A quick-connect anti-dislodgement plug according to claim 1, characterized in that, The lower side of the front end of the claw abuts against the upper side of the plug body, and the plug body is provided with a clearance groove on the lower side of the rear end of the claw so that the rear end of the claw can rotate downward.
Citation Information
Patent Citations
Electric automobile charging plug device
CN202651506U