Folding plug with self-locking function
By incorporating a self-locking function into the folding plug, and utilizing a clamp and spring structure to ensure the pins are secure, the problem of plug loosening is solved, achieving greater stability and safety.
Patent Information
- Application Number
- CN202423033204.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-10
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-12-10
AI Technical Summary
Existing detachable folding plugs are prone to loosening when inserted into a socket, posing a safety hazard.
A folding plug with a self-locking function was designed. By setting rotating front and rear prongs on the base, and using a combination of a squeezer and a spring, the prongs are ensured to remain secure when inserted into the socket. The use of highly insulating polyvinyl chloride material improves safety.
It improves the stability and safety of the plug, prevents the pins from becoming loose, and enhances safety and lifespan during use.
Smart Images

Figure CN223625255U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electronic product technology, specifically to a folding plug with a self-locking function. Background Technology
[0002] Currently, charger products are quite common and come in a wide variety. Most plugs from China, the US, and Japan have similar designs and requirements, and most of them have a folding design that allows the plug to be folded open or retracted depending on the usage, making them easy to store. In addition, to adapt to the plug requirements of different specifications around the world, users can freely replace the plug design as needed. However, existing detachable folding plugs are relatively large and restrict the design of the product's appearance. Even when not connected to the main body, a single plug can still be inserted to connect to high voltage, which also results in poor safety.
[0003] A search revealed that CN110247254A discloses a foldable plug assembly and a device including the foldable plug assembly, comprising: at least two prongs spaced apart from each other; a housing having an accommodating space therein, and a bracket for fixing the prongs within the accommodating space, wherein the at least two prongs are rotatably fixed to the bracket via a rotating shaft; a prong storage slot disposed on the housing, wherein the prongs are stored in the prong storage slot when the prongs are in a folded state; and a first limiting structure.
[0004] However, during use, the foldable prongs of the device are prone to loosening when inserted into the corresponding socket, which can lead to safety hazards. Utility Model Content
[0005] The purpose of this utility model is to provide a folding plug with a self-locking function to solve the problem that, due to the mobility of the folding prongs in the above-disclosed device, the prongs are prone to loosening when inserted into the corresponding socket, thus causing safety hazards to the plug.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A folding plug with a self-locking function includes a base, on which a connecting component for connecting to power is rotatably disposed. The connecting component includes a front plug and a rear plug rotatably disposed on the base, and the base has a storage slot that matches the front plug and the rear plug.
[0008] Furthermore, a connector is rotatably provided at the connection point between the connecting component and the base, and the connector is fixedly connected to the connecting component. A positioning device for snapping and fixing the connecting component is fixedly provided inside the connector.
[0009] The positioning device includes a presser fixedly mounted on the connector, and the presser includes a sleeve fixedly connected to the connector. A pressing column is slidably mounted inside the sleeve. A spring is fixedly mounted between the pressing column and the bottom end of the sleeve. A groove matching the pressing column is provided on the base.
[0010] Preferably, a plurality of connecting plates are fixedly provided on the side wall of the base and are perpendicularly arranged with respect to the base.
[0011] Preferably, each of the connecting plates has a connecting port on its side wall, and the outer side of the connecting plate is inclined inward.
[0012] Preferably, a housing is fixedly mounted on the base, and a plurality of buckles are fixedly mounted on the housing.
[0013] Preferably, a rotating shaft is fixedly provided on the connector on both the front and rear pins, and the two rotating shafts are arranged parallel to each other.
[0014] Preferably, a turntable is fixedly provided at the end of each of the two rotating shafts, and the eccentric parts of the two turntables are fixedly connected by a tension spring.
[0015] Preferably, a metal plate for connecting to power is fixedly disposed on the base, and the metal plate is movably connected to the front pin and the rear pin.
[0016] Preferably, the outer shell is made of polyvinyl chloride material with strong insulation properties.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] This invention utilizes a rotating front and rear pin mounted on a base. When using the device, the operator first switches the connecting component stored in the storage slot. During the rotation of the front and rear pins, the extruder fixed within the front pin connector abuts against the groove in the base. Furthermore, the spring force ensures that the extruder, sliding within the sleeve, remains firmly against the groove. This ensures that after the front and rear pins are moved to the predetermined position, the combined action of the tension spring and the spring itself provides a rebound step, guaranteeing a long service life for the front and rear pins. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the internal structure of the present invention;
[0021] Figure 3 This is a schematic diagram of the front pin structure of this utility model;
[0022] Figure 4 This is a partial structural schematic diagram of the present invention;
[0023] Figure 5 This is a schematic diagram of the internal structure of the extruder of this utility model.
[0024] In the diagram: 1. Base; 2. Front pin; 3. Rear pin; 4. Storage slot; 5. Connector; 51. Sleeve; 52. Extrusion post; 53. Spring; 54. Groove; 6. Connecting plate; 61. Connection port; 7. Outer shell; 8. Shaft; 81. Turntable; 82. Tension spring; 9. Metal plate. Detailed Implementation
[0025] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.
[0026] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.
[0027] Referring to the figure, a folding plug with a self-locking function includes a base 1. A connecting component for connecting to power is rotatably disposed on the base 1. The connecting component includes a front pin 2 and a rear pin 3 rotatably disposed on the base 1. A storage slot 4 matching the front pin 2 and the rear pin 3 is provided on the base 1.
[0028] Furthermore, a connector 5 is rotatably provided at the connection point between the connecting component and the base 1, and the connector 5 is fixedly connected to the connecting component. A positioning device for snapping and fixing the connecting component is fixedly provided inside the connector 5.
[0029] The positioning device includes a presser fixedly mounted on the connector 5, and the presser includes a sleeve 51 fixedly connected to the connector 5. A pressing post 52 is slidably mounted inside the sleeve 51. A spring 53 is fixedly mounted between the pressing post 52 and the bottom end of the sleeve 51. A groove 54 matching the pressing post 52 is provided on the base 1.
[0030] Reference Figures 1-3Multiple connecting plates 6 are fixedly installed on the side wall of the base 1 and are perpendicular to the base 1. By using the connecting plates 6 on the base 1, the protective shell of the device can be snapped onto the connecting plates 6 when the staff assembles the device, which is simple and convenient.
[0031] Reference Figures 2-4 Each connecting plate 6 has a connecting port 61 on its side wall. The outer side of the connecting plate 6 is inclined inward. The connecting port 61 on the connecting plate 6 enables the protective shell to be engaged and fixed with the connecting port 61 on the connecting plate 6 when the protective shell is fixed.
[0032] Reference Figure 1 A housing 7 is fixedly installed on the base 1, and multiple buckles are fixedly installed on the housing 7. The housing 7 installed on the base 1 protects the accessories on the device base 1 and ensures the safety of the device during use.
[0033] Reference Figures 2-4 A rotating shaft 8 is fixedly installed on the connector 5 on both the front pin 2 and the rear pin 3, and the two rotating shafts 8 are arranged parallel to each other. Through the rotating shafts 8 installed on the front pin 2 and the rear pin 3, the rotating shafts 8 can rotate synchronously during the process of the operator adjusting the front pin 2 and the rear pin 3.
[0034] Reference Figures 3-5 A turntable 81 is fixedly installed at the end of each of the two rotating shafts 8. The eccentric part of the two turntables 81 is fixedly connected by a tension spring 82. By installing the turntables 81 at the end of the rotating shafts 8, the turntables 81 fixedly installed on the rotating shafts 8 can rotate during the rotation of the rotating shafts 8. The rotating turntables 81 can adjust the tension spring 82 fixedly connected to their eccentric parts, thereby adjusting the simultaneous rotation of the front pin 2 and the rear pin 3 fixedly connected to the rotating shafts 8. This ensures that the front pin 2 and the rear pin 3 have a spring-like action during the plucking process, reducing the impact pressure on the front pin 2 and the rear pin 3, and improving the stability and safety of the device.
[0035] Reference Figures 1-3 A metal plate 9 for connecting the power supply is fixedly installed on the base 1, and the metal plate 9 is movably connected to the front pin 2 and the rear pin 3. Through the metal plate 9 installed on the base 1, the various components in the device are connected, ensuring that the device can operate normally.
[0036] Reference Figure 1 The outer casing 7 is made of highly insulating polyvinyl chloride material. By making the outer casing 7 of highly insulating polyvinyl chloride material, the risk of electric shock to workers during use of the device is avoided, thus improving the safety of the device.
[0037] Specifically, this invention utilizes a front pin 2 and a rear pin 3 mounted on a base 1 for rotation. When using the device, the operator first flips the switch on the connecting component stored in the storage slot 4. During the rotation of the front pin 2 and rear pin 3, the squeezer fixed in the connector 5 of the front pin 2 abuts against the groove 54 in the base 1. The connecting plate 6 on the base 1 allows the protective shell of the device to be snapped onto the connecting plate 6 during assembly, making the process simple and convenient. During the rotation of the rotating shaft 8, the turntable 81 fixed on the shaft 8 rotates. The rotating turntable 81 adjusts the tension spring 82 fixedly connected to its eccentric position, allowing the front pin 2 and rear pin 3, which are fixedly connected to the rotating shaft 8, to rotate simultaneously. This ensures that the front pin 2 and rear pin 3 have a spring-like rebound action during the flipping process, reducing the impact pressure on the front pin 2 and rear pin 3 and improving the stability and safety of the device.
[0038] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary; within the framework of this invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of this invention as described above, which are not provided in the details for the sake of brevity.
[0039] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A folding plug with a self-locking function, comprising a base (1), characterized in that, The base (1) is rotatably provided with a connection component for connecting to power. The connection component includes a front pin (2) and a rear pin (3) rotatably provided on the base (1), and the base (1) is provided with a storage slot (4) that matches the front pin (2) and the rear pin (3). Furthermore, a connector (5) is rotatably provided at the connection point between the connecting component and the base (1), and the connector (5) is fixedly connected to the connecting component. A positioning device for snapping and fixing the connecting component is fixedly provided inside the connector (5). The positioning device includes a squeezer fixedly mounted on the connector (5), and the squeezer includes a sleeve (51) fixedly connected to the connector (5). A squeeze column (52) is slidably mounted inside the sleeve (51). A spring (53) is fixedly mounted between the squeeze column (52) and the bottom end of the sleeve (51). A groove (54) matching the squeeze column (52) is provided on the base (1).
2. A folding plug with a self-locking function according to claim 1, characterized in that, Multiple connecting plates (6) are fixedly installed on the side wall of the base (1) and are perpendicular to the base (1).
3. A folding plug with a self-locking function according to claim 2, characterized in that, Each of the connecting plates (6) has a connection port (61) on its side wall, and the outer side of the connecting plate (6) is inclined inward.
4. A folding plug with a self-locking function according to claim 1, characterized in that, The base (1) is fixedly provided with a shell (7), and the shell (7) is fixedly provided with multiple buckles.
5. A folding plug with a self-locking function according to claim 1, characterized in that, A rotating shaft (8) is fixedly provided on the connector (5) on both the front pin (2) and the rear pin (3), and the two rotating shafts (8) are arranged parallel to each other.
6. A folding plug with a self-locking function according to claim 5, characterized in that, A turntable (81) is fixedly installed at the end of each of the two rotating shafts (8), and the eccentric parts of the two turntables (81) are fixedly connected by a tension spring (82).
7. A folding plug with a self-locking function according to claim 1, characterized in that, A metal plate (9) for connecting to power is fixedly provided on the base (1), and the metal plate (9) is movably connected to the front pin (2) and the rear pin (3).
8. A folding plug with a self-locking function according to claim 4, characterized in that, The outer shell (7) is made of polyvinyl chloride material with strong insulation.
Citation Information
Patent Citations
Foldable plug assembly and device comprising same
CN110247254A