A foldable plug-in charger

Abstract

This utility model relates to a foldable plug charger, including plugs, a linkage, and a housing. The plugs include an L-line plug, an N-line plug, and a ground plug. The linkage is located in a support portion within the housing, and the housing has storage slots adapted to the plugs. The linkage includes two racks fixedly connected in parallel and symmetrical manner. A first tooth is provided on a first side of one end of each rack, and a second tooth is provided on a second side opposite to the first side of the other end. One end of the L-line plug and one end of the N-line plug are each provided with a first gear adapted to the first tooth. One end of the L-line plug meshes with the first tooth of one rack, and one end of the N-line plug meshes with the first tooth of the other rack. One end of the ground plug is provided with two second gears, and the ground plug is located between the two racks, meshing with the second teeth of the two racks respectively through the two second gears. This design enables the reversal of movement of multiple plugs, reduces transmission parts, and improves ease of operation and portability.

Description

Technical Field

[0001] This utility model relates to the field of charging, and in particular to a foldable plug charger. Background Technology

[0002] Currently, most UK standard chargers on the market (such as chargers compliant with the BS 1363 standard) use a fixed straight-pin design, meaning the pins are directly fixed to the charger body and cannot be folded or disassembled. While this structure is simple and reliable, it is bulky and takes up a lot of space during storage or transportation, making it inconvenient to carry. Utility Model Content

[0003] Therefore, it is necessary to provide a foldable plug charger to address the issue of the large size of the UK standard charger plugs, which makes it inconvenient to carry.

[0004] This utility model provides a foldable plug charger, including plugs, a linkage, and a housing. The plugs include an L-line plug, an N-line plug, and a ground plug. The linkage is a support portion disposed within the housing, and the housing has a storage groove adapted to the plugs. The linkage includes two racks that are parallel and symmetrically fixedly connected. A first side of one end of each rack has a first tooth shape, and a second side of the other end of each rack opposite to the first side has a second tooth shape.

[0005] One end of the L-line connector and one end of the N-line connector are each provided with a first gear that matches the first tooth profile. One end of the L-line connector is meshed with the first tooth profile of a rack, and one end of the N-line connector is meshed with the first tooth profile of another rack. One end of the ground connector is provided with two second gears. The ground connector is located between the two racks and is meshed with the second tooth profiles of the two racks respectively through the two second gears.

[0006] In some embodiments, the support portion is a support plate, which has a support groove adapted to the linkage member, two first support frames adapted to the two first gears, and two second support frames adapted to the two second gears.

[0007] The linkage abuts against the edge of the support groove. The first gear extends outward to form a first support column, which abuts against the first support frame. The second gear extends outward to form a second support column, which abuts against the second support frame.

[0008] In some embodiments, the two racks of the linkage are fixedly connected by a connecting plate, one end of the connecting plate being fixedly connected to one end of one rack to form a first armpit of the linkage; the other end of the connecting plate being fixedly connected to one end of the other rack to form a second armpit of the linkage; the first armpit and the second armpit abut against the edge of the support groove.

[0009] In some embodiments, the connecting plate is provided with a limiting groove, and the inner side of the housing is provided with a limiting protrusion adapted to the limiting groove, the limiting protrusion being disposed within the limiting groove.

[0010] In some embodiments, a circular array of protrusions is provided on the side of the connection plate near the ground pin.

[0011] In some embodiments, a first spring is provided between one end of the L-line pin and the support portion, and one end of the first spring is fixedly connected to the support portion; a first protrusion is provided at the top of one end of the L-line pin, and the first protrusion abuts against the other end of the first spring.

[0012] The second spring is located between one end of the N-line pin and the support portion, and one end of the second spring is fixedly connected to the support portion; a second protrusion is provided at the top of one end of the N-line pin, and the second protrusion abuts against the other end of the second spring.

[0013] In some embodiments, the inner side of the housing is provided with a first insert and a second insert, the first insert passing through the first spring and the support portion in sequence, so that the first spring is fixedly connected to the support portion; the second insert passing through the second spring and the support portion in sequence, so that the second spring is fixedly connected to the support portion.

[0014] In some embodiments, the inner side of the housing is provided with two protrusions, and the other end of the two racks is provided with a third side opposite to the second side, which is provided with a groove that matches the protrusions.

[0015] In some of these embodiments, a groove is provided on the side of the housing at the other end of the grounding pin.

[0016] In some embodiments, the first gear and the second gear are on the same horizontal plane.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. By engaging the gears on the pins with the double racks of the linkage, the transmission racks at both ends are merged into the same linkage, allowing all three pins to move and change direction simultaneously when one pin is moved. This reduces transmission errors and transmission parts, and allows the pins to be straightened for use in the working state and folded for storage when not in use. This reduces the storage volume of the UK standard plug and improves the ease of operation and portability when storing or using the pins.

[0019] 2. The L-line and N-line pins are connected by a spring contact and provide a damped feel, ensuring reliable conduction and stable flip life; the linkage is equipped with a sliding groove and a circular protrusion array, so that the linkage makes point-line contact with the support plate, reducing frictional resistance and avoiding movement jamming during the pin bending process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a foldable plug charger shown in an embodiment of the present invention;

[0021] Figure 2 This is an exploded view structural diagram of a foldable plug charger according to an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram showing the layout structure between the pins, linkage components, and support plate in an embodiment of the present utility model.

[0023] Figure 4 This is a schematic diagram showing the layout structure between the pins, springs, and support plate in an embodiment of the present utility model;

[0024] Figure 5 This is a schematic diagram of the inner side of the shell and the support plate from a bottom view, as shown in an embodiment of the present invention. Detailed Implementation

[0025] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0026] It should be noted that when an element is said to be "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is said to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. Conversely, when an element is said to be "directly on" another element, there is no intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] See Figures 1 to 3 This utility model provides a foldable plug charger, including a plug 1, a linkage 2, and a housing 3. The plug 1 includes an L-line plug 11, an N-line plug 12, and a ground plug 13. The linkage 2 is a support portion disposed within the housing 3. The housing 3 is provided with a storage groove 31 adapted to the plug 1. The linkage 2 includes two racks 21 that are parallel and symmetrically fixedly connected. A first tooth 211 is provided on a first side surface at one end of the rack 21, and a second tooth 212 is provided on a second side surface at the other end of the rack 21 opposite to the first side surface.

[0029] One end of the L-line connector 11 and one end of the N-line connector 12 are each provided with a first gear 111 that is adapted to the first tooth profile 211. One end of the L-line connector 11 is meshed with the first tooth profile 211 of one rack 21, and one end of the N-line connector 12 is meshed with the first tooth profile 211 of another rack 21. One end of the ground connector 13 is provided with two second gears 131. The ground connector 13 is located between the two racks 21 and is meshed with the second tooth profile 212 of the two racks 21 respectively through the two second gears 131.

[0030] In this embodiment, one end of each of the two racks 21 of the linkage 2 is engaged with the L-line pin 11 and the N-line pin 12, respectively, and the other end of each rack 21 is engaged with the ground pin 13. When any pin is moved, the gear of that pin drives the linkage 2 to move, and the linkage 2 then drives the other two pins to move. This allows all three pins to move simultaneously by moving any one pin, improving the ease of use and storage of the pins.

[0031] For example, taking the ground pin 13 as an example, when the pin is retracted, the ground pin 13 retracts, and the two second gears 131 move relative to the two second tooth profiles 212, thereby driving the linkage 2 as a whole to move closer to the L-pin 11 and N-pin 12. The two first tooth profiles 211 of the linkage 2 move relative to the first gear on the L-pin 11 and the first gear on the N-pin 12, respectively, thereby driving the L-pin 11 and N-pin 12 to retract until all pins are in the storage slot 31. When the pin is in use, the movement is the opposite of when retracting the pin, which will not be described further here.

[0032] It should be understood that the positions of the L-line pin 11 and N-line pin 12 shown in the embodiments of this utility model are only examples, and their positions can be interchanged in other embodiments.

[0033] In some embodiments, such as Figure 2 and 3 As shown, the support part is a support plate 4. The support plate 4 is provided with a support groove 41 adapted to the linkage 2, two first support frames 42 adapted to the two first gears 111, and two second support frames 43 adapted to the two second gears 131.

[0034] The linkage 2 abuts against the edge of the support groove 41. The first gear 111 extends outward to form a first support column 112, which abuts against the first support frame 42. The second gear 131 extends outward to form a second support column 132, which abuts against the second support frame 43.

[0035] In this embodiment, the support plate 4 is used to support the linkage 2 and the pin 1. The housing 3 is provided with a structure that is adapted to the support groove 41, the first support frame 42 and the second support frame 43, so as to form a limiting effect on the linkage 2 and the gear with the support plate 4, thereby achieving a stable support effect.

[0036] In some embodiments, such as Figure 2 and 3 As shown, the two racks 21 of the linkage 2 are fixedly connected by a connecting plate 22. One end of the connecting plate 22 is fixedly connected to one end of one rack 21 to form the first armpit 23 of the linkage 2; the other end of the connecting plate 22 is fixedly connected to one end of the other rack 21 to form the second armpit 24 of the linkage; the first armpit 23 and the second armpit 24 abut against the groove edge of the support groove 41.

[0037] In this embodiment, the first armpit 23 and the second armpit 24 abut against the support groove 41 to reduce the contact area between the linkage 2 and the support plate 4, thereby reducing motion friction and improving the smoothness of pin movement.

[0038] In some embodiments, such as Figure 3 As shown, the connecting plate 22 is provided with a limiting groove 221, and the inner side of the housing 3 is provided with a limiting protrusion 32 that is adapted to the limiting groove 221. The limiting protrusion 32 is located in the limiting groove 221.

[0039] In this embodiment, the limiting protrusion 32 cooperates with the limiting groove 221 to limit the overall movement distance of the linkage 2, ensuring that the linkage 2 moves within a reasonable distance and avoiding situations such as excessive movement of the plug pins causing tilting and making it difficult to insert into the socket.

[0040] In some embodiments, such as Figure 3 As shown, a circular protrusion array 222 is provided on one side of the connecting plate 22 near the grounding pin 13.

[0041] In this embodiment, the convex surface of the circular protrusion array 222 abuts against the bottom surface of the storage groove 31 corresponding to the ground wire pin 13 to stabilize the downward movement of the linkage 2. This, together with the upward support formed by the first armpit 23 and the second armpit 24 abutting against the support groove 41, achieves the function of stabilizing the vertical movement of the linkage 2. At the same time, the circular protrusion array 222 can reduce the contact area, thereby reducing motion friction and improving the smoothness of pin movement.

[0042] In some embodiments, such as Figure 4 As shown, a first spring piece 51 is provided between one end of the L-line plug 11 and the support portion, and one end of the first spring piece 51 is fixedly connected to the support portion; a first protrusion 112 is provided at the top of one end of the L-line plug 11, and the first protrusion 112 abuts against the other end of the first spring piece 51.

[0043] The second spring 52 is located between one end of the N-line pin 12 and the support portion, and one end of the second spring 52 is fixedly connected to the support portion; a second protrusion 121 is provided at the top of one end of the N-line pin 12, and the second protrusion 121 abuts against the other end of the second spring 52.

[0044] In this embodiment, the spring is made of stainless steel to improve the spring's reset rigidity and stabilizing damping effect, thereby improving the stability of pin 1 in both the use and storage states and preventing pin 1 from becoming loose.

[0045] In some embodiments, such as Figure 5As shown, the inner side of the housing 3 is provided with a first insertion post 33 and a second insertion post 34. The first insertion post 33 passes through the first spring piece 51 and the support part in sequence, so that the first spring piece 51 is fixedly connected to the support part; the second insertion post 34 passes through the second spring piece 52 and the support part in sequence, so that the second spring piece 52 is fixedly connected to the support part.

[0046] In this embodiment, the insert post inside the housing cooperates with the support to fix the spring piece, thereby reducing the need for traditional fixing structures such as bolts and improving assembly efficiency.

[0047] In some embodiments, such as Figure 5 As shown, the inner side of the housing 3 is provided with two protrusions 35, and the other end of the two racks 21 is provided with a sliding groove 213 that is adapted to the protrusions 35 on the third side opposite to the second side.

[0048] In this embodiment, the protrusion 35 on the inner side of the housing 3 cooperates with the sliding groove 213 on the linkage 2 to achieve further stabilization of the linkage 2.

[0049] In some embodiments, such as Figure 1 As shown, a groove 36 is provided on the side of the housing 3 at the other end of the grounding pin 13. The other end of the grounding pin 12 is in the groove 36 to facilitate manual manipulation of the grounding pin 12.

[0050] In some embodiments, the first gear 111 and the second gear 131 are on the same horizontal plane to reduce the space occupied by the linkage-related structure and meet the requirement of miniaturization of the charger.

[0051] It is understandable that the circuit board 6 and the discharge interface are common structures for chargers, and will not be described in detail here.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A foldable plug-in charger, characterized in that, The device includes pins, a linkage, and a housing. The pins include an L-line pin, an N-line pin, and a ground pin. The linkage is a support portion located within the housing. The housing has a storage slot that matches the pins. The linkage includes two racks that are parallel, symmetrically, and fixedly connected. A first tooth is provided on a first side at one end of each rack, and a second tooth is provided on a second side at the other end of each rack opposite to the first side. One end of the L-line connector and one end of the N-line connector are each provided with a first gear that matches the first tooth profile. One end of the L-line connector is meshed with the first tooth profile of a rack, and one end of the N-line connector is meshed with the first tooth profile of another rack. One end of the ground connector is provided with two second gears. The ground connector is located between the two racks and is meshed with the second tooth profiles of the two racks respectively through the two second gears.

2. The foldable prong charger of claim 1, wherein, The support part is a support plate, which is provided with a support groove adapted to the linkage, two first support frames adapted to the two first gears, and two second support frames adapted to the two second gears. The linkage abuts against the edge of the support groove. The first gear extends outward to form a first support column, which abuts against the first support frame. The second gear extends outward to form a second support column, which abuts against the second support frame.

3. The foldable prong charger of claim 2, wherein, The two racks of the linkage are fixedly connected by a connecting plate. One end of the connecting plate is fixedly connected to one end of one rack to form the first armpit of the linkage. The other end of the connecting plate is fixedly connected to one end of the other rack to form the second armpit of the linkage. The first armpit and the second armpit abut against the edge of the support groove.

4. The foldable prong charger of claim 3, wherein, The connecting plate is provided with a limiting groove, and the inner side of the housing is provided with a limiting protrusion that matches the limiting groove. The limiting protrusion is located in the limiting groove.

5. The foldable prong charger of claim 3, wherein, A circular array of protrusions is provided on one side of the connecting plate near the grounding pin.

6. The foldable prong charger of claim 1, wherein, A first spring is provided between one end of the L-line plug and the support part, and one end of the first spring is fixedly connected to the support part; a first protrusion is provided at the top of one end of the L-line plug, and the first protrusion abuts against the other end of the first spring. The second spring is located between one end of the N-line pin and the support portion, and one end of the second spring is fixedly connected to the support portion; a second protrusion is provided at the top of one end of the N-line pin, and the second protrusion abuts against the other end of the second spring.

7. The foldable prong charger of claim 6, wherein, The inner side of the housing is provided with a first insert and a second insert. The first insert passes through the first spring and the support in sequence, so that the first spring is fixedly connected to the support. The second insert passes through the second spring and the support in sequence, so that the second spring is fixedly connected to the support.

8. The foldable prong charger of claim 1, wherein, The inner side of the housing is provided with two protruding strips, and the other end of the two racks is provided with a sliding groove on the third side opposite to the second side, which is adapted to the protruding strips.

9. The foldable prong charger of claim 1, wherein, A groove is provided on the side of the housing located at the other end of the grounding pin.

10. The foldable prong charger of claim 1, wherein, The first gear and the second gear are on the same horizontal plane.

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