A telescopic adapter and an expansion board made with the same

Abstract

This utility model discloses a telescopic adapter and an extension plate made therefrom. The adapter includes a telescopic plug with pins on its rear side wall, and an adapter box. The telescopic plug and the adapter box are slidably connected, with the sliding direction between them facing the insertion / removal direction of the pins. The adapter box has an adapter terminal or interface fixedly connected thereto, which is electrically connected to the pins via wiring from the adapter box and the telescopic plug. The adapter terminal includes a protruding conductive plug. This utility model has the advantages of novel structure, allowing for separate disassembly, and the ability to easily replace or stack the extension plate body according to usage requirements.

Description

Technical Field

[0001] This utility model relates to the field of insert plates, specifically to a telescopic adapter and an extension insert plate made therefrom. Background Technology

[0002] Existing extension cords are divided into portable and fixed types. Portable extension cords generally have cables and plugs attached to the cord body, allowing for easy relocation. Fixed extension cords have prongs on the cord body, which are directly inserted into wall sockets. Therefore, fixed extension cords rely entirely on the connection between the prongs and the socket for fixation. Since the panel of a typical socket protrudes from the wall, after the prongs on the back of the extension cord are fixed to the socket, the back of the extension cord only forms a small area of ​​contact and support with the socket panel. There is often a gap between most of the back of the extension cord and the wall. When plugging or unplugging, uneven force can easily cause the extension cord to tilt and fall off. In addition, the instability of the connection between the extension cord and the socket relying solely on the prongs increases the possibility of prong damage.

[0003] To address the aforementioned issues, Chinese patent CN202421616922.0 discloses a wall-mounted expansion plug, comprising a plug body and an expansion plug. The plug body has several expansion slots, and the expansion plug has pins located on the rear side wall of the expansion plug. The plug body and the expansion plug are slidably connected, and the sliding direction between the plug body and the expansion plug is towards the insertion / removal direction of the pins.

[0004] However, since the socket body and the expansion plug are an integral, non-removable structure, and the sliding structure between the two is a vulnerable part, once damaged, the entire unit will be scrapped. In addition, the overall size is large and inconvenient to package. Utility Model Content

[0005] Based on the above problems, the purpose of this utility model is to provide a telescopic adapter with a novel structure that can be disassembled in separate parts and allows for arbitrary replacement or stacking of the insert body according to usage requirements, as well as an extension insert made therefrom.

[0006] To address the above problems, the following technical solution is provided: a telescopic adapter, including a telescopic plug with pins on its rear side wall, and an adapter box. The telescopic plug and the adapter box are slidably connected, with the sliding direction between them facing the insertion / removal direction of the pins. The adapter box has an adapter terminal or adapter interface fixedly connected thereto, and the adapter terminal or adapter interface is electrically connected to the pins via wiring from the adapter box and the telescopic plug. The adapter terminal includes a protruding conductive plug.

[0007] The present invention is further configured such that, when the adapter box is provided with an adapter interface, the adapter terminal is inserted into the adapter interface and is detachably connected to the adapter interface.

[0008] The present invention is further configured such that the adapter terminal includes an insulating partition, and the conductive plugs are two or three, with each conductive plug arranged parallel to each other and spaced apart; the insulating partition is located in the middle of each conductive plug.

[0009] The present invention is further provided that the adapter box is equipped with an overload protector.

[0010] The present invention is further configured such that the side wall of the adapter box is provided with a slot communicating with its inner cavity; the side wall of the telescopic plug is provided with a wire passage communicating with its inner cavity, and the wire passage is provided with a sliding groove that is adapted to the two side walls of the slot to realize the docking and sliding of the telescopic plug with the adapter box.

[0011] The present invention is further configured such that the telescopic plug is provided with a rotary disk that can rotate relative to the telescopic plug, and the pins are mounted on the rotary disk; the rotation axis of the rotary disk is in the same direction as the insertion and removal direction of the pins.

[0012] The present invention is further configured such that the telescopic plug is provided with a rotary cylinder for the rotary disk to rotate, and the inner wall of the rotary cylinder facing the rear side wall of the telescopic plug is provided with a retaining flange to prevent the rotary disk from detaching; the inner wall of the rotary cylinder is provided with a plurality of positioning grooves opened in its axial direction, and the adjacent positioning grooves are spaced 90 degrees apart; the side wall of the rotary disk is provided with positioning tumblers adapted to the positioning grooves.

[0013] An expansion plug board made using a telescopic adapter includes a plug board body, the plug board body having a plurality of expansion ports, the expansion ports being two-pronged ports and / or three-pronged ports and / or USB charging ports; an adapter port is provided on one or both side walls of the plug board body; the adapter port is plugged into an adapter terminal or plugged into an adapter terminal and then into an adapter interface.

[0014] The present invention is further configured such that there are several insert plates, and the expansion ports between adjacent insert plates are connected by adapter terminals.

[0015] The present invention is further configured such that the adapter box is provided with a receiving groove at the position corresponding to the adapter interface; the insulating partition is located in the receiving groove.

[0016] The beneficial effects of this utility model are: 1. The telescopic plug and the adapter box are both slidably designed. When the prongs of the telescopic plug are inserted into the socket panel on the wall, the position of the adapter box relative to the telescopic plug is adjusted to achieve a wall-mounted effect and reduce shaking. The adapter terminal is directly fixedly connected to the adapter box for fitting with the socket body; or the socket body with the adapter terminal is inserted into the adapter interface to achieve electrical connection. 2. The adapter terminals allow for conversion between male and female connectors, making it more practical. 3. The rotary table is used to adjust the orientation of the pins, making it easy to adjust the orientation of the telescopic adapter; 4. The positioning groove and positioning ball are matched to achieve positioning in the circumferential direction and provide a sense of segmentation; 5. The two-prong plug and / or three-prong plug and / or USB charging port of the plug body are used to match the electrical equipment; the adapter port is used to connect the telescopic adapter, or to connect adjacent plug bodies when multiple plug bodies are set; the number of plug bodies can be stacked according to the usage requirements. 6. It achieves separate installation, so if either the telescopic adapter or the socket body is damaged, it can be replaced separately, effectively avoiding the disadvantage of the integrated structure that can only be discarded after damage; at the same time, it retains the purpose of adapting to the height of the socket panel to keep the socket body flush against the wall. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the telescopic adapter of this utility model.

[0018] Figure 2 This is a first-view perspective three-dimensional structural diagram of the adapter terminal of this utility model in the separated state.

[0019] Figure 3 This is a second-view perspective three-dimensional structural diagram of the adapter terminal of this utility model in the separated state.

[0020] Figure 4 This is a first-person perspective three-dimensional structural diagram of the telescopic plug and adapter box of this utility model after an explosion.

[0021] Figure 5 This is a second-view perspective three-dimensional structural diagram of the telescopic plug and adapter box of this utility model after an explosion.

[0022] Figure 6 This is a first-person perspective three-dimensional structural diagram of the telescopic adapter of this utility model in the event of an explosion.

[0023] Figure 7 This is a two-dimensional structural diagram of the telescopic adapter of this utility model from an explosion perspective.

[0024] Figure 8 This is a three-dimensional structural diagram of the telescopic adapter and insert plate body of this utility model in their combined state.

[0025] Figure 9 This is a first-view three-dimensional structural diagram of the telescopic adapter and the insert plate body of this utility model in a separated state.

[0026] Figure 10 This is a second-view three-dimensional structural diagram of the telescopic adapter and insert plate body of this utility model in a separated state.

[0027] The labels in the diagram have the following meanings: 10-Retractable plug; 11-Pin; 12-Cable port; 13-Slide groove; 14-Rotating disc; 141-Positioning pin; 15-Rotating cylinder; 151-Flange; 152-Positioning groove; 20-Adapter box; 21-Adapter terminal; 211-Conductive plug; 212-Insulating partition; 22-Adapter interface; 23-Overload protector; 24-Slot; 25-Accommodation slot; 50-Plug body; 51-Extension socket; 52-Adapter socket. Detailed Implementation

[0028] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0029] Example 1 refer to Figures 1 to 10 ,like Figures 1 to 10 The telescopic adapter shown includes a telescopic plug 10, with a pin 11 located on the rear side wall of the telescopic plug 10, and an adapter box 20. The telescopic plug 10 and the adapter box 20 are slidably connected, with the sliding direction between the telescopic plug 10 and the adapter box 20 facing the insertion / removal direction of the pin 11. The adapter box 20 is provided with an adapter terminal 21 or an adapter interface 22 fixedly connected thereto. The adapter terminal 21 or adapter interface 22 is electrically connected to the pin 11 via wiring from the adapter box 20 and the telescopic plug 10. The adapter terminal 21 includes an outwardly protruding conductive plug 211.

[0030] In the above structure, the telescopic plug 10 and the adapter box 20 are slidably arranged. When the plug 11 of the telescopic plug 10 is inserted into the socket panel on the wall, the position of the adapter box 20 relative to the telescopic plug 10 is adjusted to achieve a wall-mounted effect and reduce shaking. The adapter terminal 21 is directly fixedly connected to the adapter box 20 for fitting with the socket body 50; or the socket body 50 with the adapter terminal 21 is inserted into the adapter interface 22 to achieve electrical connection.

[0031] In this embodiment, when the adapter box 20 is provided with an adapter interface 22, the adapter terminal 21 is inserted into the adapter interface 22 and is detachably connected to the adapter interface 22.

[0032] In the above structure, the conversion between male and female plugs is achieved through the adapter terminal 21, making it more practical.

[0033] In this embodiment, the adapter terminal 21 further includes an insulating partition 212, and the conductive plug 211 has two or three wires (corresponding to live wire, neutral wire or live wire, neutral wire, and ground), and each conductive plug 211 is arranged parallel to each other and spaced apart; the insulating partition 212 is located in the middle of each conductive plug 211.

[0034] In the above structure, the insulating partition 212 and the conductive plug 211 are connected by interference fit or integral injection molding, serving as an intermediate conductive component to establish an electrical connection between the telescopic adapter and the plug body 50.

[0035] In this embodiment, the adapter box 20 is equipped with an overload protector 23.

[0036] In the above structure, the overload protector 23 is a fuse that cuts off the circuit in time when the power of the electrical appliance downstream of the adapter terminal 21 or adapter interface 22 is too high, so as to avoid overload and overheating.

[0037] In this embodiment, the side wall of the adapter box 20 is provided with a slot 24 that communicates with its inner cavity; the side wall of the telescopic plug 10 is provided with a cable passage 12 that communicates with its inner cavity, and the cable passage 12 is provided with a sliding groove 13 that is adapted to the two side walls of the slot 24 to realize the docking and sliding of the telescopic plug 10 and the adapter box 20.

[0038] In the above structure, the sliding groove 13 and the slot 24 are adapted to achieve sliding while ensuring the reliability of the connection between the two.

[0039] In this embodiment, the telescopic plug 10 is provided with a rotary disk 14 that can rotate relative to the telescopic plug 10, and the pins 11 are mounted on the rotary disk 14; the rotation axis of the rotary disk 14 is in the same direction as the insertion and removal direction of the pins 11.

[0040] In the above structure, the rotary table 14 is used to adjust the orientation of the pins 11, which facilitates the adjustment of the orientation of the telescopic adapter.

[0041] In this embodiment, the telescopic plug 10 is provided with a rotary cylinder 15 for the rotary disk 14 to rotate. The inner wall of the rotary cylinder 15 facing the rear side wall of the telescopic plug 10 is provided with a retaining flange 151 to prevent the rotary disk 14 from detaching. The inner wall of the rotary cylinder 15 is provided with a plurality of positioning grooves 152 opened in its axial direction, and the adjacent positioning grooves 152 are spaced 90 degrees apart. The side wall of the rotary disk 14 is provided with positioning tumblers 141 that are adapted to the positioning grooves 152.

[0042] In the above structure, the positioning groove 152 and the positioning pin 141 are adapted to achieve circumferential positioning and provide a step-by-step feel, ensuring that the pin 11 can be adjusted in 90-degree increments when rotating, so as to match the orientation of the socket hole on the socket panel.

[0043] In this embodiment, the telescopic adapter's telescopic state is referenced. Figure 2 , Figure 9 The relative position between the telescopic plug 10 and the adapter box 20.

[0044] Example 2 refer to Figures 1 to 10 ,like Figures 1 to 10The diagram shows an expansion plug made using a telescopic adapter, including the telescopic adapter in Embodiment 1, and also including a plug body 50. The plug body 50 is provided with a plurality of expansion ports 51, which are two-pronged ports and / or three-pronged ports and / or USB charging ports. The plug body 50 has an adapter port 52 on one or both side walls. The adapter port 52 is inserted into the adapter terminal 21 or inserted into the adapter terminal 21 and then into the adapter interface 22.

[0045] In the above structure, the two-prong plug and / or the three-prong plug and / or the USB charging port of the plug body 50 are used to match the electrical equipment; the adapter port 52 is used to connect the telescopic adapter, or to connect adjacent plug bodies 50 when multiple plug bodies 50 are provided; the plug body 50 is provided with a transformer (not shown in the figure) for providing step-down output for the USB charging port.

[0046] In this embodiment, there are several insert plates 50, and the expansion ports 51 between adjacent insert plates 50 are connected by adapter terminals 21.

[0047] In the above structure, the number of insert plates 50 can be stacked according to usage requirements.

[0048] In this embodiment, the adapter box 20 is provided with a receiving groove 25 at the position corresponding to the adapter interface 22; the insulating partition 212 is located in the receiving groove 25.

[0049] In the above structure, when the insert plate 50 and the telescopic adapter are connected, the two can be brought as close as possible to fit together, improving the aesthetics.

[0050] In this embodiment, the plug plate body 50 is also provided with an independent switch for controlling the power supply on / off of the two-prong plug and / or the three-prong plug and / or the USB charging plug.

[0051] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model. These improvements and modifications assumed above should also be considered within the protection scope of the present utility model.

Claims

1. A telescopic adapter, comprising a telescopic plug, wherein the telescopic plug has pins on its rear side wall, characterized in that: It also includes an adapter box, wherein the telescopic plug and the adapter box are slidably connected, and the sliding direction between the telescopic plug and the adapter box is towards the insertion and removal direction of the plug; the adapter box is provided with an adapter terminal or adapter interface fixedly connected thereto, and the adapter terminal or adapter interface is electrically connected to the plug pin via wiring through the adapter box and the telescopic plug; the adapter terminal includes an outwardly protruding conductive plug.

2. The telescopic adapter according to claim 1, characterized in that: When the adapter box is equipped with an adapter interface, the adapter terminal is inserted into the adapter interface and is detachably connected to the adapter interface.

3. A telescopic adapter according to claim 1, characterized in that: The adapter terminal also includes an insulating partition. The conductive plugs are two or three, and each conductive plug is arranged parallel to each other and spaced apart. The insulating partition is located in the middle of each conductive plug.

4. A telescopic adapter according to claim 1, characterized in that: The adapter box is equipped with an overload protector.

5. A telescopic adapter according to claim 1, characterized in that: The adapter box has a slot on its side wall that communicates with its inner cavity; the telescopic plug has a cable passage on its side wall that communicates with its inner cavity, and the cable passage has a sliding groove that is adapted to the two side walls of the slot to realize the docking and sliding of the telescopic plug with the adapter box.

6. A telescopic adapter according to claim 1, characterized in that: The telescopic plug is provided with a rotary table that can rotate relative to the telescopic plug, and the pins are mounted on the rotary table; the rotation axis of the rotary table is in the same direction as the insertion and removal direction of the pins.

7. A telescopic adapter according to claim 6, characterized in that: The telescopic plug is provided with a rotary cylinder for the rotary disk to rotate. The inner wall of the rotary cylinder facing the rear side wall of the telescopic plug is provided with a retaining flange to prevent the rotary disk from detaching. The inner wall of the rotary cylinder is provided with a plurality of positioning grooves opened in its axial direction, and the adjacent positioning grooves are spaced 90 degrees apart. The side wall of the rotary disk is provided with positioning tumblers that are adapted to the positioning grooves.

8. An extension plate made using the telescopic adapter as described in claim 1, 2, 3, 4, 5, 6, or 7, comprising an extension plate body, characterized in that: The plug-in board body is provided with several expansion ports, which are two-pronged plugs and / or three-pronged plugs and / or USB charging ports; the plug-in board body is provided with adapter ports on one or both side walls; the adapter ports are connected to adapter terminals or connected to adapter terminals and then to adapter interfaces.

9. An expansion board according to claim 8, characterized in that: The insert plate body consists of several parts, and the expansion ports between adjacent insert plates are connected through adapter terminals.

10. An expansion board according to claim 8 or 9, characterized in that: The adapter box is provided with a receiving groove at the location of the adapter interface; the receiving groove contains the insulating partition of the adapter terminal.

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