Foldable plug charger

Abstract

The present invention relates to a foldable plug charger. The foldable plug charger includes a pair of plugs (120), a housing, a button (101), and a transmission assembly (110), wherein the housing includes an opening for the plugs to protrude, the button (101) is provided in the housing, and the transmission assembly (110) is provided offset within the housing, with an input terminal connected to the button (101) and an output terminal connected to the plugs (120), and by converting the moving motion produced by pressing the button (101) into rotational motion and outputting it to the plugs (120), the plugs (120) rotate relative to the opening and can be switched between a folded state and an upright state.

Description

TECHNICAL FIELD

[0001] Related Applications This application claims the priority of the Chinese patent application entitled "Foldable Plug Charger" filed on October 27, 2023 with the application number 202322907250.0, the entire content of which is incorporated into this application by reference.

[0002] The present application relates to the technical field of chargers, in particular to a foldable plug charger.

BACKGROUND ART

[0003] The plug of a common foldable plug charger can operate after being bent 90 degrees from the edge of the housing body of the charger. To meet the requirements of safety standards, a sufficient distance needs to be ensured between the edge of the housing body and the plug. After the plug of a common charger is raised, the root of the plug is located approximately at the center of the product, so the charger occupies a large space after being inserted into a jack. When a plurality of chargers are inserted into a wall outlet or a power strip for use together, there is a problem that the housing bodies of the chargers are prone to mutual interference.

SUMMARY OF THE INVENTION

[0004] Based on this, in view of the problem that the housing bodies are prone to mutual interference when a plurality of foldable plug chargers are charged together, it is necessary to provide a foldable plug charger that occupies a small space after the plug of the charger is inserted into a jack and is convenient to use.

[0005] A foldable plug charger comprises: a pair of plugs, a housing including an opening for the plug to protrude, a button provided on the housing, A transmission assembly is provided offset within the housing, with an input terminal connected to the button and an output terminal connected to the plug, which converts the motion generated by pressing the button into rotational motion and outputs it to the plug, thereby causing the plug to rotate relative to the opening and switch between a folded state and an upright state. Includes.

[0006] In one embodiment, the transmission assembly includes a guide sleeve, a central shaft, and a transmission sleeve, the button being connected to the guide sleeve which includes two transmission feet, the transmission sleeve including two first transmission slopes arranged in opposite directions, the two transmission feet each abutting against the two first transmission slopes of the transmission sleeve, the first end of the central shaft being connected to the transmission sleeve and the plug on one of them, and the second end of the central shaft being connected to the other plug.

[0007] In one embodiment, the transmission assembly further includes a rotating sleeve provided between the guide sleeve and the transmission sleeve, two transmission feet provided through the rotating sleeve and each abutting against two of the first transmission slopes of the transmission sleeve, the rotating sleeve provided to rotate synchronously with the transmission sleeve and fixedly connected to the first end of the central shaft, and the outer ring of the rotating sleeve connected to one of the plugs.

[0008] In one embodiment, the two transmission feet of the guide sleeve each have contact surfaces, the two contact surfaces each contact two of the first transmission slopes, the transmission sleeve further includes two first bumps, the two first transmission slopes each provide on two of the first bumps, and / or The rotating sleeve includes at least two second bumps, and if there are two second bumps, each of the two second bumps is provided with a second transmission slope, and the second transmission slope and the contact surface contact the first transmission slope simultaneously.

[0009] In one embodiment, the rotating sleeve further includes two position limiting plates, the two position limiting plates being opposite each other and connected to the inner wall of the body of the rotating sleeve, the first end of the central shaft being provided through between the two position limiting plates, a gap being provided between the adjacent side walls of the two position limiting plates, and the transmission feet of the guide sleeve being provided in the gap.

[0010] In one of these embodiments, the first end of the central shaft is fixedly connected to the rotating sleeve by a pin.

[0011] In one embodiment, at least one first planar portion is provided at the second end of the central axis, a rotating portion is provided at the base of the plug, and a second planar portion is provided on the hole wall of the rotating portion that abuts against the first planar portion.

[0012] In one embodiment, the transmission assembly further includes an elastic member fitted onto the central shaft and in contact with the transmission sleeve and the second end of the central shaft, a locking spring fitted onto the second end of the central shaft, and an outer sleeve having a locking hole formed therein, wherein a projection is provided on the inner wall of the housing, the outer sleeve is fitted onto the transmission sleeve and the elastic member and is configured to rotate synchronously with the transmission sleeve, and the projection abuts against the locking hole.

[0013] In one embodiment, the foldable plug charger further includes a support body detachably connected to the housing, and a conductive sheet connected to the support body, wherein a contact portion is provided at the connection point between the plug and the rotating sleeve, and the transmission assembly is provided between the support body and the inner wall of the housing.

[0014] In one embodiment, the housing includes a housing body, a lid, and a decorative plate connected to each other, and the opening is provided in the lid.

[0015] To more clearly describe the embodiments of the present application or the technical means in the prior art, the drawings necessary for describing the embodiments or the prior art will be briefly described below. Clearly, the drawings described below are merely embodiments of the present application, and those skilled in the art can obtain other drawings based on the disclosed drawings without any creative work. [Brief explanation of the drawing]

[0016] [Figure 1] This is a schematic diagram of the folded state of a foldable plug charger in one embodiment. [Figure 2] This is a schematic diagram of a foldable plug charger in an upright position in one embodiment. [Figure 3] This is an exploded view of a foldable plug charger in one embodiment. [Figure 4] This is an exploded view of the transmission assembly of a foldable plug charger in one embodiment. [Figure 5] This is a schematic diagram of a partial assembly configuration of a foldable plug charger in one embodiment. [Figure 6] This is a schematic diagram of the assembly of other parts of a foldable plug charger in one embodiment. [Figure 7] This is a schematic assembly diagram of another part of a foldable plug charger in one embodiment. [Modes for carrying out the invention]

[0017] To make the above-mentioned objectives, features, and advantages of the present application easier to understand, specific embodiments of the present application will be described in detail below with reference to the drawings. Many specific details will be explained in the following description in order to fully understand the present application. However, the present application can be implemented in many ways other than those described herein, and a person skilled in the art can make similar improvements without departing from the spirit of the present application; therefore, the present application is not limited to the specific embodiments disclosed below.

[0018] Note that in the description of the present application, when terms such as "center", "longitudinal direction", "lateral direction", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial direction", "radial direction", and "circumferential direction" are mentioned, the orientations or positional relationships indicated by these terms are based on the orientations or positional relationships shown in the accompanying drawings. They are merely for the purpose of facilitating and simplifying the description of the present application, and do not indicate or imply that the depicted apparatus or element must have a specific orientation, be configured and operated in a specific orientation. Therefore, they should not be construed as limiting the present application.

[0019] In addition, when the terms "first" and "second" are mentioned, these terms are used for descriptive purposes only, and shall not be understood to indicate or imply relative importance, or imply the quantity of the specified technical features. Thus, a feature defined by "first" and "second" may explicitly or implicitly include at least one of that feature. In the description of the present application, when the term "plurality" is mentioned, "plurality" means at least two, for example two, three, etc., unless otherwise clearly and specifically defined.

[0020] In the present application, unless otherwise clearly specified and limited, when terms such as "mounted", "connected", "joined", and "fixed" are mentioned, these terms shall be construed in a broad sense. For example, unless otherwise clearly limited, they may be fixedly connected, detachably connected, or integrally connected; they may be mechanically connected or electrically connected; they may be directly connected, or indirectly connected via an intermediate medium, or may be in internal communication between two elements or in an interaction relationship between two elements. A person of ordinary skill in the art can understand the specific meaning of the above terms in the present application according to specific situations.

[0021] In the present application, unless explicitly specified and limited otherwise, when similar descriptions such as a first feature being "on" or "under" a second feature are stated, the meaning may be that the first feature and the second feature are in direct contact, or that the first feature and the second feature are in indirect contact via an intermediate medium. Further, that the first feature is "on", "above" or "on the top surface" of the second feature may mean that the first feature is directly above or obliquely above the second feature, or may only mean that the horizontal height of the first feature is higher than that of the second feature. That the first feature is "under", "below" or "on the bottom surface" of the second feature may mean that the first feature is directly below or obliquely below the second feature, or may only mean that the horizontal height of the first feature is lower than that of the second feature.

[0022] It should be noted that when an element is referred to as being "fixed to" or "provided on" another element, it may be directly on the other element, or there may be an intervening element present. When an element is considered to be "connected" to another element, the element may be directly connected to the other element, or intervening elements may be present at the same time. Where present, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the present application are for illustrative purposes only and do not represent that they are the only embodiment.

[0023] As shown in Figures 1 to 5, a foldable plug charger according to one embodiment of the present invention includes a pair of plugs 120, a housing, a button 101, and a transmission assembly 110. The transmission assembly 110 connects the plugs 120 and the button 101, and when not charging, the plugs 120 are folded into the housing. When charging is required, pressing the button 101 causes the transmission assembly 110 to convert the moving motion generated by the pressing action into rotational motion, which is output to the plugs 120, making the plugs 120 rotatable relative to the housing body and protruding from the opening of the housing, thereby switching from a folded state to an upright state for use in charging. The transmission assembly 110 is offset within the housing, and provided that the dimensions of safety standards are met, the rotation axis of the plugs can be brought close to the top edge of the housing, and even after the plugs 120 rotate around the transmission assembly 110, they remain upright in a position close to the top edge of the housing. After the plug 120 is inserted into the charging jack, the charger occupies a smaller space on the jack panel, avoiding interference issues between chargers when multiple chargers are charging simultaneously. Compared to conventional foldable plug chargers, it is easier to use and improves the utilization rate of the charging jack panel. In addition, when folded, the plug 120 is completely hidden within the housing, and the outer end of the plug 120 is not exposed and could snag other items.

[0024] When the plug is in an upright position, the distance from the plug to the top edge of the housing is 6 millimeters or more, which conforms to the dimensions of safety standards.

[0025] In order for the transmission assembly 110 to output rotation to the plug 120, in one embodiment, as shown in Figures 3 to 5, the transmission assembly 110 includes a guide sleeve 111, a central shaft 114, and a transmission sleeve 112. A button 101 is connected to the guide sleeve 111. The guide sleeve 111 includes two transmission feet 1111, and the transmission sleeve 112 includes two first transmission inclined surfaces 1122 arranged in opposite directions, with the two transmission feet 1111 each contacting the two first transmission inclined surfaces 1122. The first end of the central shaft 114 is connected to the transmission sleeve 112 and one of its plugs 120, and the second end of the central shaft 114 is connected to the other plug 120. When the push button 101 is pressed, the guide sleeve 111 moves toward the transmission sleeve 112. With the support of elastic contact force, the guide sleeve 111 and the transmission sleeve 112 move, and at the same time, the force with which the two transmission feet 1111 of the guide sleeve 111 contact the first transmission slope 1122 of the transmission sleeve 112 increases, creating a rotational torque on the two first transmission slopes 1122 which are arranged in opposite directions, promoting the rotation of the transmission sleeve 112 and achieving the effect of converting the moving motion generated by the pressing action into rotational motion. When the transmission sleeve 112 rotates, the central shaft 114 also rotates in sync, and the first and second ends of the central shaft 114 drive the two plugs 120 to rotate, causing the plugs 120 to rotate relative to the housing and protrude from the opening of the housing, achieving an upright position.

[0026] Based on the previous embodiment, the structure is made more compact to facilitate connection of the central shaft 114, the transmission sleeve 112, and the plug 120. In this embodiment, the transmission assembly 110 further includes a rotating sleeve 113. The rotating sleeve 113 is provided between the guide sleeve 111 and the transmission sleeve 112, and two transmission feet 1111 are provided through the rotating sleeve 113, each abutting against two first transmission inclined surfaces 1122 of the transmission sleeve 112. The rotating sleeve 113 is provided to rotate in sync with the transmission sleeve 112 and is fixedly connected to the first end of the central shaft 114, and the outer ring of the rotating sleeve 113 is connected to one of the plugs 120. When the transmission sleeve 112 rotates, the rotating sleeve 113 and the central shaft 114 also rotate in sync. The outer ring of the rotating sleeve 113 is connected to one plug 120, and the second end of the central shaft 114 is connected to the other plug 120. When the rotating sleeve 113 and the central shaft 114 rotate, they drive the two plugs 120 to rotate, causing the plugs 120 to rotate relative to the housing, protrude from the opening in the housing, and achieve an upright position.

[0027] Specifically, as shown in Figures 4 and 5, in one embodiment, the first end of the central shaft 114 is fixedly connected to the rotating sleeve 113 by a pin 1141, allowing the two to rotate synchronously. The outer ring of the rotating sleeve 113 is tightly connected to one plug 120, and the second end of the central shaft 114 is provided to rotate synchronously with the other plug 120, thereby enabling the rotating sleeve 113 and the second end of the central shaft 114 to transmit torque through the two plugs 120, thereby achieving rotation of both plugs 120.

[0028] To clarify the structure of the guide sleeve 111 and the transmission sleeve 112, specific guide sleeves 111 and transmission sleeves 112 are provided below, as shown in Figures 4 and 5. In one embodiment, the guide sleeve 111 has two transmission feet 1111 each provided with abutment surfaces 1112, the two abutment surfaces 1112 each abutting against two first transmission slopes 1122, and the transmission sleeve 112 further includes two first bumps 1121, the two first transmission slopes 1122 each provided on two first bumps 1121.

[0029] In one embodiment, as shown in Figures 4 to 7, the rotating sleeve 113 includes at least two second bumps 1131, and if there are two second bumps 1131, each of the two second bumps 1131 is provided with a second transmission slope 1133, the second transmission slope 1133 contacting a first transmission slope 1122, and when the transmission feet 1111 are driven to rotate the transmission sleeve 112, the first transmission slope 1122 of the transmission sleeve 112 contacts the second transmission slope 1133 of the rotating sleeve 113 to form a rotational torque, thereby causing the rotating sleeve 113 and the transmission sleeve 112 to rotate synchronously. The widths of the second transmission inclined surface 1133 and the contact surface 1112 are both narrower than the width of the first transmission inclined surface 1122. As a result, the first transmission inclined surface 1122 can contact the second transmission inclined surface 1133 and the contact surface 1112 simultaneously. Therefore, when the guide sleeve 111 is driven to rotate the transmission sleeve 112, the transmission sleeve 112 can be driven to rotate the rotating sleeve 113 in synchronous motion.

[0030] Specifically, in the folded state, there are contact points at the abutment points between the two transmission feet 111 and the two first transmission slopes 1122, and the connecting wires of the two contact points are provided at a 45° angle to the inner wall of the top of the housing, so that the stroke of the transmission feet on the first transmission slopes rotates the transmission sleeve by 90°, ensuring that the plug stands upright after rotation.

[0031] Preferably, as shown in Figures 4 to 7, in the embodiment of the present application, there are four second bumps 1131 and two first bumps 1121, with gaps provided between adjacent sides of two first bumps 1121, and one gap provided for every two second bumps 1131, completing a uniform assembly of the four second bumps 1131 and two first bumps 1121. The first bumps 1121 are provided with second transmission slopes 1133 that can contact the second bumps and similarly serve to transmit torque.

[0032] To enable the first ends of both the transmission feet 1111 and the central shaft 114 of the guide sleeve 111 to pass through the rotating sleeve 113, in one embodiment, as shown in Figures 4, 5, and 7, the rotating sleeve 113 further includes two position limiting plates 1132, the two position limiting plates are arranged opposite each other and connected to the inner wall of the body of the rotating sleeve 113, the first end of the central shaft 114 is provided passing through between the two position limiting plates 1132, a gap is provided between the adjacent side walls of the two position limiting plates 1132, the transmission feet 1111 of the guide sleeve 111 are provided in the gap, and the first ends of both the transmission feet 1111 and the central shaft 114 are connected to the rotating sleeve 113 simultaneously.

[0033] To clarify the structure of the central shaft 114, one specific central shaft is provided below, and as shown in Figure 4, in one embodiment thereof, at least one first planar portion 1142 is provided at the second end of the central shaft 114, a rotating portion 121 is provided at the base of the plug 120, and a second planar portion is provided on the hole wall of the rotating portion 121 that abuts against the first planar portion 1142, and torque is transmitted between the second end of the central shaft 114 and the rotating portion 121 of the plug 120 by the first planar portion 1142 and the second planar portion, so that the plug 120 connected to the second end of the central shaft 114 rotates in sync with the plug 120 connected to the rotating sleeve 113, thereby achieving an upright position.

[0034] To facilitate the folding of the plug 120 and to reset the transmission assembly 110, in one embodiment, as shown in Figures 3 and 4, the transmission assembly 110 further includes an elastic member 115, a locking spring 116, and an outer sleeve 117. The elastic member 115 is fitted onto the central shaft 114 and abuts between the transmission sleeve 112 and the second end of the central shaft 114. A locking hole 1171 is formed in the outer sleeve 117, and a projection (not shown) is provided on the inner wall of the housing, the projection abutting the locking hole 1171. The locking spring 116 is fitted onto the second end of the central shaft 114, and the outer sleeve 117 is fitted onto the transmission sleeve 112 and the elastic member 115, and is configured to rotate synchronously with the central shaft 114 and the transmission sleeve 112 by the locking spring 116. When charging, after the plug 120 is converted to an upright position, a projection on the housing body enters the locking hole 1171 of the outer sleeve, thereby restricting the position of the outer sleeve 117 and the transmission sleeve 112, and preventing the plug 120 from folding due to the rotation of the transmission sleeve 112. When charging is complete and the plug 120 changes from an upright position to a folded position, force is applied to the outer end of the plug 120 to move it, causing the projection to exit the locking hole 1171. At this time, the compressed elastic member 115 recoils, resetting the transmission sleeve 112, the rotating sleeve 113, the central shaft 114, and the guide sleeve 111.

[0035] Preferably, the surface of the projection is arc-shaped and can easily slide in and out of the locking hole 1171.

[0036] Preferably, as shown in Figure 4, the outer sleeve is provided with a square hole or a nearly square hole, and the outer wall of the transmission sleeve has a shape that fits the square hole, so that the two can rotate synchronously.

[0037] Preferably, the locking hole 1171 is a rectangular, circular, or elliptical hole.

[0038] To achieve electrical conductivity in the foldable plug charger, as shown in Figure 3, in one embodiment, the foldable plug charger further includes a support 130 that is detachably connected to a housing, and a conductive sheet 140 connected to the support 130, wherein a contact portion 122 that abuts against the conductive sheet 140 is provided at the connection point between the plug 120 and the rotating sleeve 113, and a transmission assembly 110 is provided between the support 130 and the inner wall of the housing, and the support 130 mounts the transmission assembly 110 and the plug 120 inside the housing, and the contact portion 122 contacts the conductive sheet 140 to achieve electrical conductivity. Preferably, the support and the housing are connected by screws.

[0039] Furthermore, as shown in Figure 3, the conductive sheet 140 is provided with an arc-shaped structure, which contacts the contact portion 122. When the plug 120 rotates to an upright position, the contact portion of the plug 120 maintains contact with the arc-shaped structure, thereby ensuring electrical conductivity.

[0040] Preferably, as shown in Figures 1 to 3, in one embodiment the housing includes a housing body 100, a lid 200, and a decorative plate 300 connected to each other, and the opening is provided in the lid 200.

[0041] In the above-described foldable plug charger, the plug 120 and button 101 are connected by a transmission assembly 110. When not charging, the plug 120 is folded into the housing. When charging is required, pressing the button 101 causes the transmission assembly 110 to convert the moving motion generated by the pressing action into rotational motion, which is output to the plug 120. This allows the plug 120 to rotate relative to the housing body and protrude from the opening in the housing, switching from a folded state to an upright state for use in charging. The transmission assembly 110 is offset within the housing, and, assuming it meets safety standard dimensions, the rotation axis of the plug can be positioned close to the top edge of the housing. Even after the plug 120 rotates around the transmission assembly 110, it remains upright in a position close to the top edge of the housing. After the plug 120 is inserted into the charging jack, the charger occupies a smaller space on the jack panel, avoiding interference problems between chargers when multiple chargers are charging simultaneously. Compared to conventional foldable plug chargers, it is easier to use and improves the utilization rate of the charging jack panel. In addition, when folded, the plug 120 is completely hidden inside the housing, and the outer end of the plug 120 is not exposed and does not snag on other items.

[0042] The technical features of the above embodiments can be combined in any way, and 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 these combinations of technical features, they should all be considered to fall within the scope described herein.

[0043] The above embodiments merely illustrate some embodiments of the present application, and although the descriptions are specific and detailed, they should not be understood as limiting the scope of the utility model registration claims of this application. Furthermore, a person skilled in the art could make several modifications and improvements without departing from the concept of this application, and all of these fall within the scope of protection of this application. Therefore, the scope of protection for the utility model registration of this application should be based on the attached utility model registration claims. [Explanation of Symbols]

[0044] 100 Housing Body 200 Lid 300 decorative plates 101 buttons 110 Transmission Assembly 120 plug 121 Rotating part 122 Contact area 130 Support 131 Screws 140 conductive sheets 111 Guide Sleeve 1111 Transmission Feet 1112 Contact surface 112 Transmission Sleeve 1121 First Bump 1122 First transmission slope 113 Rotating Sleeve 1131 Second bump 1132 Position restriction sign 1133 Second transmission slope 114 Center axis 1141 pins 1142 1st plane part 115 Elastic member 116 Locking spring 117 External sleeve 1171 Locking hole

Claims

1. A pair of plugs, A housing including an opening for the plug to protrude, A button provided on the housing, A transmission assembly provided offset within the housing, wherein the input terminal is connected to the button and the output terminal is connected to the plug, and the movement motion generated by the press button is converted into rotational motion and output to the plug, thereby causing the plug to rotate relative to the opening and switch between a folded state and an upright state, A foldable plug charger characterized by including the following:

2. The folding plug charger according to claim 1, wherein the transmission assembly includes a guide sleeve, a central shaft, and a transmission sleeve, the button is connected to the guide sleeve which includes two transmission feet, the transmission sleeve includes two first transmission slopes arranged in opposite directions, the two transmission feet each abut against the two first transmission slopes of the transmission sleeve, the first end of the central shaft is connected to the transmission sleeve and the plug of one of them, and the second end of the central shaft is connected to the other plug.

3. The folding plug charger according to claim 2, wherein the transmission assembly further includes a rotating sleeve provided between the guide sleeve and the transmission sleeve, two transmission feet provided through the rotating sleeve and each abutting against two of the first transmission slopes of the transmission sleeve, the rotating sleeve provided to rotate in synchronous with the transmission sleeve and fixedly connected to a first end of the central shaft, and the outer ring of the rotating sleeve is connected to one of the plugs.

4. The folding plug charger according to claim 3, wherein both of the two transmission feet of the guide sleeve are provided with contact surfaces, the two contact surfaces each contact with two of the first transmission slopes, the transmission sleeve further includes two first bumps, and the two first transmission slopes are each provided on two of the first bumps.

5. The folding plug charger according to claim 4, wherein the rotating sleeve includes at least two second bumps, and if there are two second bumps, both of the second bumps are provided with a second transmission slope, and the second transmission slope and the contact surface contact the first transmission slope simultaneously.

6. The folding plug charger according to claim 5, characterized in that the width of the second transmission slope and the contact surface are both smaller than the width of the first transmission slope.

7. The folding plug charger according to claim 3, characterized in that both of the two transmission feet of the guide sleeve are provided with contact surfaces, the two contact surfaces each contact with two of the first transmission slopes, the rotating sleeve includes at least two second bumps, and if there are two second bumps, both of the second bumps are provided with second transmission slopes, and the second transmission slopes and the contact surfaces contact the first transmission slopes simultaneously.

8. The folding plug charger according to claim 7, characterized in that the width of the second transmission slope and the contact surface are both smaller than the width of the first transmission slope.

9. The folding plug charger according to claim 2, wherein the rotating sleeve further includes two position limiting plates, the two position limiting plates being arranged opposite each other and connected to the inner wall of the body of the rotating sleeve, the first end of the central shaft being provided through between the two position limiting plates, a gap being provided between the adjacent side walls of the two position limiting plates, and the transmission feet of the guide sleeve being provided in the gap.

10. The folding plug charger according to claim 2, characterized in that the first end of the central shaft is fixedly connected to the rotating sleeve by a pin.

11. The folding plug charger according to claim 2, characterized in that at least one first planar portion is provided at the second end of the central axis, a rotating portion is provided at the base of the plug, and a second planar portion is provided on the hole wall of the rotating portion that abuts against the first planar portion.

12. The foldable plug charger according to claim 2, further comprising: an elastic member fitted onto the central shaft and in contact with the transmission sleeve and the second end of the central shaft; a locking spring fitted onto the second end of the central shaft; and an outer sleeve having a locking hole formed therein, wherein a projection is provided on the inner wall of the housing, the outer sleeve is fitted onto the transmission sleeve and the elastic member and is provided to rotate synchronously with the transmission sleeve, and the projection abuts against the locking hole.

13. The folding plug charger according to claim 12, characterized in that the surface of the projection is arc-shaped.

14. The folding plug charger according to any one of claims 1 to 13, further comprising a support body detachably connected to the housing, and a conductive sheet connected to the support body, wherein a contact portion is provided at the connection point between the plug and the rotating sleeve, and the transmission assembly is provided between the support body and the inner wall of the housing.

15. The folding plug charger according to any one of claims 1 to 12, wherein the housing includes a housing body, a lid, and a decorative plate connected to each other, and the opening is provided in the lid.

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