Power supply devices, outlet devices and systems

Abstract

The outlet device includes a base (100) having an internal storage space, a movable cover (200) movably mounted on the base (100) along a first direction between a use position and a storage position and extending at least partially from the base (100) when in the use position, a socket (211) located on one of the base (100) and the movable cover (200) and adapted to fit a plug blade (1010) of a plug device (1000), and a drive assembly (10) mounted in the storage space and connected to the movable cover (200), for switching the movable cover (200) from the storage position to the use position as the plug device (1000) is inserted and for returning the movable cover (200) to the storage position as the plug device (1000) is removed.

Description

Technical Field

[0001] This application relates to the technical field of electrical accessories, and specifically to a socket device.

Background Art

[0002] A socket device is for fitting with a plug device and connecting to a power line. Since it is necessary to accommodate the plug blades of the plug device, it is necessary to provide a certain accommodation space in the socket device. Thus, it is difficult to significantly reduce the size of the socket device. For example, in the vertical, horizontal, and height dimensions of socket devices applicable to Chinese, US, Japanese standards, etc., the height is at least about 24.5 mm. It is clear that such dimensional limitations have an adverse effect on the portability of the socket device.

[0003] Therefore, in view of the above circumstances, it is considered to provide a socket device that solves at least part of the above problems.

Summary of the Invention

[0004] This application discloses a socket device, and the socket device includes a base having an accommodation space inside, a movable cover movably installed on the base along a first direction between a use position and a storage position, and when in the use position, at least partially extending from the base, a plug-in port located on one of the base and the movable cover and adapted to the plug blades of the plug device, a drive assembly installed in the accommodation space and connected to the movable cover, which switches the movable cover from the storage position to the use position as the plug device is inserted, and returns the movable cover to the storage position as the plug device is withdrawn.

[0005] The following drawings of the embodiments of this application are used as part of this application to understand this application. The drawings show the embodiments of this application and their descriptions for explaining the principle of this application.

Brief Description of the Drawings

[0006] [Figure 1A] This is a schematic perspective view of the movable cover of an outlet device according to one embodiment of the present invention when it is in the operating position. [Figure 1B] This is a side view of the movable cover of an electrical outlet device according to one embodiment of the present invention, when it is in the operating position. [Figure 2A] This is a schematic perspective view of the movable cover of an electrical outlet device according to one embodiment of the present invention when it is in the stored position. [Figure 2B] This is a side view of the movable cover of an electrical outlet device according to one embodiment of the present invention, when it is in the stored position. [Figure 3] This is a schematic cross-sectional view of the first portion of the movable cover of an electrical outlet device according to one embodiment of the present invention when it is in the stored position. [Figure 4] This is a schematic cross-sectional view of the second portion of the movable cover of the outlet device according to one embodiment of the present invention when it is in the stored position. [Figure 5] This is a schematic cross-sectional view of the first portion of the movable cover of an outlet device according to one embodiment of the present application when it is in the operating position. [Figure 6] This is a schematic cross-sectional view of the second portion of the movable cover of an outlet device according to one embodiment of the present invention when it is in the operating position. [Figure 7] This is a schematic cross-sectional view of the third portion of the outlet device according to one embodiment of the present invention, when the movable cover is in the stored position. [Figure 8] This is a perspective view of the connection between an outlet device and a plug device according to a preferred embodiment of the present application. [Figure 9] Figure 8 is a plan view showing the connection between the outlet device and the plug device. [Figure 10] Figure 8 is a perspective view of the disassembled outlet and plug devices. [Figure 11] This is a cross-sectional view taken along line AA in Figure 9, where the movable cover is in the stowed position, the floating member is in the first position, and the self-locking member is in the unlocked position. [Figure 12]This is another cross-sectional view taken along line AA in Figure 9, where the movable cover is in the operating position, the floating member is in the second position, and the self-locking member is in the unlocked position. [Figure 13] This is a further cross-sectional view taken along line AA in Figure 9, where the movable cover is in the operating position, the floating member is in the second position, and the self-locking member is in the locked position. [Figure 14] Figure 8 is a partial cross-sectional view of the connection between the outlet device and the plug device, where the movable cover is in the usage position, the floating member is in the second position, and the self-locking member is in the locked position. [Figure 15] Figures 8 to 14 are perspective views of the movable cover. [Figure 16] Figures 8 to 14 show another perspective view of the movable cover. [Figure 17] Figures 8 to 14 are perspective views of the upper base. [Figure 18] Figures 10 to 14 are perspective views of the support base. [Figure 19] Figures 10 to 14 are perspective views of the floating members. [Figure 20] Figures 10 to 14 show another perspective view of the floating member. [Figure 21] Figures 10 to 14 are perspective views of the self-locking members. [Figure 22] Figures 10 to 14 are side views of the self-locking members. [Figure 23] Figure 8 is a partial perspective view of the disassembled outlet and plug devices. [Modes for carrying out the invention]

[0007] In the following description, many specific details are provided to understand the present application more thoroughly. However, as will be apparent to those skilled in the art, embodiments of the present application can be implemented without one or more of these details. In other examples, some technical features known in the art are not described to avoid confusion with the embodiments of the present application.

[0008] To thoroughly understand the embodiments of the present application, a detailed structure is provided in the following description. Clearly, the implementation of the embodiments of the present application is not limited to special details well known to those skilled in the art.

[0009] To at least partially solve the above-mentioned technical problems, as shown in FIGS. 1A to 2B, the socket device according to the present application includes a base 100 having an accommodation space inside, a movable cover 200 movably installed on the base 100 along a first direction D1 between a use position P1 and a storage position P2, and when in the use position P1, at least partially extending from the base 100, a socket 211 located on one of the base 100 and the movable cover 200 and adapted to the plug blade 1010 of the plug device 1000, a drive assembly installed in the accommodation space, connected to the movable cover 200, switching the movable cover 200 from the storage position P2 to the use position P1 as the plug device 1000 is inserted, and returning the movable cover 200 to the storage position P2 as the plug device 1000 is withdrawn.

[0010] The outlet device of this invention, by installing a drive assembly, allows the movable cover 200 to switch from the storage position P2 to the usage position P1 when the plug device 1000 is inserted, and to return to the storage position P2 when the plug device 1000 is removed. As a result, when the plug device 1000 is inserted, the movable cover 200 moves to the usage position P1 and surrounds the plug blades 1010 of the plug device 1000, ensuring the normal power supply function of the outlet device, while also preventing exposure of the plug blades 1010 and improving safety. Furthermore, after the plug device 1000 is removed, the movable cover 200 moves to the storage position P2, allowing the thickness of the outlet device to be made thinner than conventional outlets, improving user comfort and making it easier to store and carry.

[0011] The detailed structure of an outlet device according to one embodiment of the present invention will be described below with reference to Figures 1 to 7. Assuming no conflicts, the technical features of each embodiment of the present invention can be combined with each other. Figure 1A is a schematic perspective view of the outlet device according to one embodiment of the present invention when the movable cover is in the usage position. Figure 1B is a side view of the outlet device according to one embodiment of the present invention when the movable cover is in the usage position. Figure 2A is a schematic perspective view of the outlet device according to one embodiment of the present invention when the movable cover is in the stored position. Figure 2B is a side view of the outlet device according to one embodiment of the present invention when the movable cover is in the stored position. Figure 3 is a schematic cross-sectional view of the first portion when the movable cover of the outlet device according to one embodiment of the present application is in the stored position; Figure 4 is a schematic cross-sectional view of the second portion when the movable cover of the outlet device according to one embodiment of the present application is in the stored position; Figure 5 is a schematic cross-sectional view of the first portion when the movable cover of the outlet device according to one embodiment of the present application is in the usage position; Figure 6 is a schematic cross-sectional view of the second portion when the movable cover of the outlet device according to one embodiment of the present application is in the usage position; and Figure 7 is a schematic cross-sectional view of the third portion when the movable cover of the outlet device according to one embodiment of the present application is in the stored position.

[0012] As is known to those skilled in the art, an electrical outlet is a device having an outlet for inserting an electrical cable and connecting it to a power line. Common outlets include standard three-prong outlets, standard two-prong outlets, USB outlets, etc. The following and the drawings describe the electrical outlet according to this application using a standard three-prong outlet as an example, but other types of standard three-prong outlets are also applicable to this application.

[0013] Figures 1A and 1B show schematic diagrams of the outlet device according to the present invention, and also show a plug device 1000 that plugs into the outlet device. As shown in Figure 2A, the outlet device is illustrated as a multi-tap outlet having multiple sets of outlets 211 and has an illustrated power cord 104. However, as can be understood, in other embodiments not shown, the outlet device may have only one set of outlets 211 and / or may not have an extended power cord. The outlet device according to the present invention is preferably a portable outlet, i.e., it can be moved from one location to another before or during use. For example, the outlet device according to the present invention may be a so-called plug board.

[0014] The power outlet device may further have at least one type of USB interface for supplying power to, for example, a mobile phone, a tablet computer, etc., and the type of USB interface includes, but is not limited to, a USB-A interface, a USB-C interface, etc.

[0015] Referring to Figures 1A and 1B, the plug device 1000 is fully inserted into the outlet device and the power circuit is turned on. According to the present invention, in this case, a part of the outlet device is displaced and the internal volume of at least the plug device is increased, providing sufficient space to accommodate the plug blades 1010 of the plug device 1000. Such a structure can significantly reduce the volume of the outlet device according to the present invention compared to conventional outlet devices.

[0016] To provide such a housing space, in one embodiment, the outlet device includes a base 100 and a movable cover 200. The base 100 has an internal housing space for housing electrical components known in the art, such as electrical connectors.

[0017] In one example, the outlet device of the present invention further includes a movable cover 200 mounted on a base 100 and movable relative to the base 100 along a first direction D1 between a usage position P1 (see Figures 1A and 1B) and a storage position P2 (see Figures 2A and 2B). When in the usage position P1, the movable cover 200 extends at least partially from the base 100 to fully house the plug blades 1010 of the plug device 1000, and at this time the outlet device is in use. As shown in Figures 1A and 1B, a portion of the movable cover 200 in the usage position P1 extends from the base 100. For example, when the outlet is in storage position P2, the outlet device is in an unused state and the movable cover 200 does not extend from the base 100, thus reducing the dimensions of the outlet device when it is not connected to the plug device 1000, i.e., when the outlet device is in an unused state. Alternatively, when the outlet is in storage position P2, the dimension to which the movable cover 200 extends from the base 100 is smaller than the dimension to which the movable cover 200 extends from the base 100 when the outlet is in use position P1. Preferably, when the outlet is in storage position P2, the movable cover 200 is flush with the surface of the base 100 so that the outlet device has a substantially flat outer surface, making it easy to carry and transport.

[0018] Referring to Figures 1A, 1B, 2A, and 2B, when the movable cover 200 is in the usage position P1, the maximum dimension of the outlet device along the first direction D1 is the first dimension DP1, and when the movable cover 200 is in the storage position P2, the maximum dimension of the outlet device along the first direction D1 is the second dimension DP2, and the first dimension DP1 is larger than the second dimension DP2. That is, by making the volume of the outlet device in the unused state smaller than the volume of the outlet device in the usage state, it is possible to fully insert the plug blades 1010 of the plug device 1000 and reduce the space occupied by the outlet device. Considering that the case of the outlet device has a certain thickness to maintain strength, it is preferable that the second dimension DP2 is 70% or less of the first dimension DP1.

[0019] To make the structure of the outlet device as compact as possible, it is preferable that the first direction D1 in which the movable cover 200 moves is parallel to the direction in which the plug device 1000 is inserted into the outlet device. Therefore, the first dimension DP1 and the second dimension DP2 of the outlet device can also be described exemplary by the dimensions of the plug blades 1010 of the plug device 1000. Preferably, the first dimension DP1 is greater than the length of the plug blades 1010, and the second dimension DP2 is less than the length of the plug blades 1010, for example, the second dimension DP2 is less than 24.5 mm. Also, for example, for a standard 3-hole socket 211 shown in the figure, since the length of the plug blades 1010 of the corresponding standard 3-pin plug is at least 18 mm, the first dimension DP1 is greater than 18 mm and the second dimension DP2 is less than 18 mm. That is, the height of the length, width, and height dimensions of the outlet device in an unused state is less than 18 mm. Furthermore, for example, for a standard two-hole socket 211 not shown, since the length of the plug blades 1010 of the corresponding standard two-pin plug is at least 16 mm, the first dimension DP1 is greater than 16 mm, and the second dimension DP2 is less than 16 mm. That is, the height of the outlet device in its unused state is less than 16 mm. The second dimension DP2 of the outlet device according to the present invention is preferably less than 18 mm, more preferably less than 17 mm, and even more preferably less than 16 mm. For reference, the height of conventional standard three-hole / two-hole socket outlet devices is generally in the range of 24.5 to 30.0 mm. Therefore, the outlet device according to the present invention has a significantly smaller height dimension compared to conventional outlet devices, thus reducing the overall space it occupies and improving portability. However, the above figures are merely examples, and the dimensions of the outlet device according to the present invention are not limited to the above numerical range.

[0020] To ensure that the outlet device can properly supply power to the plug device 1000, the outlet device further includes an outlet 211, which is located on either the base or the movable cover and fits with the plug blades of the plug device, so that the plug blades of the plug device can move in and out of the housing space of the base through the outlet, thereby electrically connecting with the electrical elements in the housing space and realizing the function of supplying power to the device connected to the plug device via the outlet device.

[0021] In one example, referring to Figures 1A, 1B, 2A, and 2B, the socket 211 of the outlet device is located on the upper panel portion 210 of the movable cover 200, and the panel portion 210 has a surface that can contact the plug device 1000. For convenience of explanation, the panel portion 210 on which the socket 211 is installed is shown to be located at the top of the outlet device, that is, the plug device 1000 is inserted downward into the outlet device through the upper socket 211. In other words, according to this embodiment, the plug device 1000 is inserted downward, and the movable cover 200 of the outlet device moves upward to provide space for the plug blades of the plug device. For clarity, directional terms such as “upper,” “upward,” and “downward” used herein are modified depending on the specific usage location of the outlet device.

[0022] The outlet device of the present invention further includes a drive assembly 10, which is installed in a housing space and connected to the movable cover 200, and switches the movable cover 200 from the storage position P2 to the usage position P1 when the plug device is inserted, and returns the movable cover 200 to the storage position P2 when the plug device is removed.

[0023] The drive assembly may be implemented based on the components shown in Figures 3 to 6, or in any other suitable manner. An exemplary drive assembly will be described below with reference to Figures 3 to 6. Referring to Figures 3 and 4, the drive assembly 10 includes a floating member 400, which is located inside the movable cover 200 and faces the socket 211. When the plug device 1000 is inserted into the socket 211, the plug blades 1010 of the plug device 1000 contact the floating member 400, applying a force to the floating member 400 in a direction away from the socket 211, causing the floating member 400 to slide in a direction away from the socket 211 as the plug device 1000 is inserted. Optionally, the floating member 400 includes an elastic member, which may be a component made of an elastic material. Optionally, the sliding direction of the floating member 400 may be parallel to the insertion direction of the plug blades.

[0024] In order to limit the sliding direction of the floating member 400, for example, to limit the floating member 400 from sliding along the first direction D1, in one example, a first guide groove extending along the first direction D1 is provided in the housing space of the base 100, and the floating member 400 is arranged to slide along the first guide groove, that is, it can reciprocate sliding along the direction limited by the first guide groove.

[0025] Referring next to Figures 3 and 4, the drive assembly 10 includes a transmission assembly that is connected to the floating member 400 and the movable cover 200, and drives the movable cover 200 to the above-mentioned use position when the floating member 400 slides away from the insertion opening.

[0026] The transmission assembly 600 includes a first transmission member, a second transmission member, and a direction-changing transmission member, the first transmission member being connected to a movable cover 200, the second transmission member being connected to a floating member 400, and the direction-changing transmission member being rotatably connected to a support base 300 about a pivot axis 350 perpendicular to a first direction D1, with both sides of the direction-changing transmission member facing the pivot axis 350 being rotatably connected to the first transmission member and the second transmission member, respectively, so that the movable cover 200 and the floating member 400 move along opposite directions parallel to the first direction D1.

[0027] The direction-changing transmission member is connected to the floating member 400 and the movable cover 200, and when the floating member 400 slides away from the insertion opening, it drives the movable cover 200 to the operating position P1. Selectively, the direction-changing transmission member may include at least one gear, for example, one gear. Exemplarily, the first transmission member includes a first rack 610, the second transmission member includes a second rack 620, and the direction-changing transmission member includes a gear 630, the gear 630 meshes with the first rack 610 and the second rack 620 respectively, and the longitudinal direction of the first rack 610 and the longitudinal direction of the second rack 620 are both parallel to the first direction D1, that is, the teeth of the first rack 610 are arranged along the first direction, and the teeth of the second rack 620 are arranged along the first direction D1. With the above connection method, after the plug blade 1010 of the plug device 1000 is inserted into the socket 211, the plug blade 1010 comes into contact with the floating member 400, and as the plug blade 1010 moves away from the socket 211 along the first direction D1, the floating member 400 also slides away from the socket 211 along the first direction D1, and the floating member 400 is connected to the second rack 620, and at the connection point between the second rack 620 and, for example, the direction changing transmission member of the gear 630, multiple teeth arranged along the first direction D1 are installed, and the teeth of the gear 630 and the teeth of the second rack 620 mesh, and the other of the gear 630 The engagement of one side with a first transmission member, such as a first rack 610, connected to the movable cover 200, allows the sliding of the floating member 400 to drive the rotation of the gear 630. The rotation of the gear 630 drives the movable cover 200, connected to the first transmission member, to move to the usage position P1, i.e., to pop out from inside the base 100. The housing space enclosed by the movable cover 200 and the base 100 in the usage position P1 is sufficient to accommodate the plug blades 1010 of the plug device 1000, thus avoiding safety problems caused by the exposure of the plug blades 1010 and improving the safety and reliability of the outlet device.

[0028] In one example, the outlet device further includes a first return member 114 and a second return member 115 so that the movable cover 200 can be returned to the storage position P2 after the plug blades 1010 of the plug device 1000 are pulled out, the first end of the first return member 114 may be connected to the base 100, for example, to the inner wall of the base, the second end of the first return member 114 is connected to the floating member 400 and returns the floating member 400 when the plug device 1000 is pulled out, the first end of the second return member 115 is connected to the movable cover 200, and the second end of the second return member 115 is connected to the base 100, and the second return part The material 115 returns the movable cover 200 to the storage position P2 when the plug device 1000 is withdrawn. That is, the second return member 115 applies a force toward the storage position P2 to the movable cover 200, thereby returning the movable cover 200 to the storage position P2 after the plug blade 1010 has been withdrawn. This reduces the volume of space occupied by the movable cover 200 outside the base 100, making the overall volume of the outlet device smaller, especially the dimensions in the first direction D1, improving usability and portability. Furthermore, because the thickness of the outlet device in the storage position P2 is small, packaging and transportation costs can also be reduced.

[0029] Preferably, the first return member 114 may be a spring, and the second return member 115 includes a spring, the axial direction of which is parallel to the first direction D1, the force that the first return member 114 applies to the floating member 400 is an elastic force, and the first return member 114 can contact the floating member 400 and apply a force toward the insertion opening to the floating member 400. The force that the second return member 115 applies to the movable cover 200 is an elastic force, and the second return member 115 can contact the movable cover 200 and apply a force toward the storage position P2 to the movable cover 200. In this way, the movable cover 200 is always held in the storage position P2 and / or always tries to return to the storage position P2 unless the force applied by the second return member 115 is released. In other words, in the unused state, the movable cover 200 does not extend from the base 100 due to the combined action of the first return member 114 and the second return member 115, thus allowing the thickness of the outlet device to be kept small.

[0030] The arrangement of the first return member 114 and the second return member 115 can be explained with reference to the cross-sectional view in Figure 7. The floating member 400 further includes a groove and a projection installed in the groove, and the first return member 114 may abut against the floating member 400, for example, the first return member 114 may be inserted into the groove and abut against the projection. Furthermore, the movable cover 200 includes a panel portion 210 and a support portion 220, the panel portion 210 is formed in a generally planar shape, and the support portion 220 extends from the panel portion 210 in a first direction D1. As a result, the cross-sectional structure of the movable cover 200 is substantially U-shaped. A canopy portion 230 is formed at one end of the support portion 220 that is away from the panel portion 210. The second return member 115 abuts against the movable cover 200 in the canopy portion 230, for example, the canopy portion 230 further has a groove, and a part of the second return member 115 is located within the groove. When installed in this manner, the second return member 115 does not interfere with other electrical components such as electrical connectors in the base 100 of the outlet device. The number and position of the first return members 114 and the second return members 115 may be reasonably set according to actual needs, for example, in the case of one movable cover 200, the second return member 115 may be installed symmetrically on the canopy portion 230 on the opposite side.

[0031] Furthermore, because the movable cover 200 has the above-mentioned substantially U-shaped cross-sectional structure, it is possible to prevent foreign objects from entering the cavity of the base 100 while the movable cover 200 is moving. In addition, the canopy portion 230 formed to protrude from the movable cover 200 has a position-restricting effect, and in this way the movable cover 200 can move relative to the base 100 only between the storage position P2 and the usage position P1, and does not move beyond the usage position P1, thereby preventing the movable cover 200 from escaping from the base 100.

[0032] Furthermore, Figures 5 and 6 are schematic diagrams showing the positions of the direction-changing transmission member and the floating member 400 after the floating member 400 and the movable cover 200 have returned to their original positions. When the plug device 1000 is unplugged from the outlet device, the first return member 114 applies a force to the floating member 400 toward the socket 211, causing the floating member 400 to slide upward along the first direction D1. At the same time, the second return member 115 applies a force to the movable cover 200 toward the storage position P2, causing the movable cover 200 to move toward the storage position P2. In this process, the floating member 400 drives the movable cover 200 toward the storage position P2 via the direction-changing transmission member, for example, a gear, thereby enabling the movable cover 200 to return to the storage position P2.

[0033] The inventors of the present invention have found it particularly advantageous to overcome the forces acting on the first return member 114 and the second return member 115 by utilizing the insertion force when inserting the plug device 1000. Generally, due to safety requirements, it is necessary to install safety devices (not shown), such as protective gates, on outlet devices, so the user needs to exert a certain amount of force to release the safety device when inserting the plug device 1000. According to the present invention, by eliminating the forces acting on the first return member 114 and the second return member 115 by utilizing the insertion force when inserting the plug device 1000, the movable cover 200 can be moved from the storage position P2 to the usage position P1. Since no additional force or any other operation is required in this process, the outlet device according to the present invention is easy to use.

[0034] In the illustrated embodiment, the plug device 1000 is inserted downwards, and the movable cover 200 of the outlet device moves upwards. In other words, in this embodiment, the direction of the insertion force of the plug device 1000 is opposite to the direction of movement of the movable cover 200. In some other examples, although not shown, the socket 211 of the outlet device may be located on the base 100, and the movable cover may be installed within the base on the side opposite to the socket 211, and the movable cover 200 of the outlet device may move downwards at the same time as the plug device 1000 is inserted downwards. In other words, the direction of the insertion force of the plug device 1000 is opposite to the direction of movement of the movable cover 200. For example, this can be achieved by installing a direction-changing transmission member having an even number of gears, for example, the direction-changing transmission member may include a first gear and a second gear, the first gear meshing with the floating member, the second gear meshing with the movable cover, and both the first gear and the second gear meshing together, and when the floating member moves downward, it drives the first gear to rotate, the first gear drives the second gear to rotate, and drives the movable cover downward to the operating position.

[0035] The figure shows only one direction-changing transmission member, such as a gear, and in this way, it is possible to insert the plug device 1000 and drive the movable cover 200. However, with respect to the central axis of the plug blade 1010 of the plug device 1000, other direction-changing transmission members, such as a gear (not shown), may be installed on the opposite side of the illustrated direction-changing transmission member, that is, direction-changing transmission members may be installed on both sides symmetrically with respect to the central plane.

[0036] This concludes the explanation of the outlet device of this application. However, to ensure understanding, the outlet device may include other components in addition to the structure described above, which will not be specifically described here.

[0037] As described above, the outlet of this invention, by installing a drive assembly, can switch the movable cover from the stored position to the usage position when a plug device is inserted, and return to the stored position when the plug device is removed. Therefore, when the plug device is in the usage position, the movable cover moves to the usage position to surround the plug blades of the plug device, ensuring the normal power supply function of the outlet, preventing exposure of the plug blades, and improving safety. Furthermore, since the movable cover moves to the stored position after the plug device is removed, the thickness of the outlet can be made thinner than conventional outlets, improving user comfort and making it easier to store and carry.

[0038] The detailed structure of an outlet device according to another embodiment of the present application will be described below with reference to Figures 8 to 23, and the technical features of each embodiment of the present application can be combined with each other, provided that there are no conflicts. As shown in Figures 8 to 23, the outlet device according to the present application includes a base 100, a movable cover 200, a support base 300, a floating member 400, a self-locking member 500, a transmission assembly 600, and an elastic member.

[0039] The base 100 includes an upper base 110, a lower base 120, and a storage space 130 located between the upper base 110 and the lower base 120, the upper base 110 having an opening 111. The movable cover 200 has an insertion opening 211, and the movable cover 200 is movably connected to the opening 111 along a first direction D1 between a use position where it protrudes from the opening 111 and a storage position where it retracts into the storage space 130, the first direction D1 being parallel to the depth direction of the insertion opening 211. The support base 300 is located within the storage space 130 and corresponds to the opening 111, and the support base 300 is connected to the lower base 120 and has a first guide member extending along the first direction D1 and a first locking portion extending along a second direction D2 which is perpendicular to the first direction D1. The floating member 400 is movably connected to the first guide member between a first position and a second position along a first direction D1, the first position being closer to the movable cover 200 than the second position, and the floating member 400 has a second guide member. The self-locking member 500 has a second locking portion that fits the first locking portion, and a guide slope 520 that abuts against the plug blade 1010, the self-locking member 500 is movably connected to the second guide member between a locked position and an unlocked position along a second direction D2, the self-locking member 500 in the locked position brings the second locking portion into contact with the first locking portion, and the self-locking member 500 in the unlocked position separates the second locking portion from the first locking portion, and the guide slope 520 is in the second direction The self-locking member 500 has a first end 521 and a second end 522 that are spaced apart along D2, the distance from the first end 521 to the movable cover 200 is smaller than the distance from the second end 522 to the movable cover 200, and in the process of the plug blade 1010 being inserted into the insertion opening 211 and contacting the guide slope 520, the self-locking member 500 drives the floating member 400 to move from the first position to the second position, and the self-locking member 500 moves from the unlocked position to the locked position.The transmission assembly 600 includes a first transmission member, a second transmission member, and a direction-changing transmission member. The first transmission member is connected to a movable cover 200, the second transmission member is connected to a floating member 400, and the direction-changing transmission member is rotatably connected to a support base 300 about a pivot axis 350 perpendicular to a first direction D1. Both sides of the direction-changing transmission member opposite the pivot axis 350 are rotatably connected to the first transmission member and the second transmission member, respectively. Thus, the movable cover 200 and the floating member 400 move along opposite directions parallel to the first direction D1. Both ends of the elastic member are connected to the floating member 400 and the self-locking member 500, respectively, applying a force to the self-locking member 500 that moves it toward the unlocked position along a second direction D2.

[0040] In the outlet device according to the present invention, a base 100 having an internal storage space 130 and an external opening 111 is installed, and a movable cover 200 having a socket 211 along a first direction D1 is movably installed in the opening 111, so that the movable cover 200 is in the use position when it protrudes from the opening 111 and in the storage position when it retracts into the storage space 130, a support base 300 corresponding to the opening 111 is installed in the storage space 130, and a first guide member along the first direction D1 and a third perpendicular to the first direction D1 are installed on the support base 300 By installing a locking portion and connecting the floating member 400 to the first guide member so as to be movable along the first direction D1, the floating member 400 moves between a first position and a second position relative to the support base 300 along the first direction D1, and when in the first position, it is closer to the movable cover 200, the floating member 400 has a second guide member, and the self-locking member 500 is connected so as to be movable along the second guide member so as to be movable along the second direction D2, the self-locking member 500 has a second locking portion that fits the first locking portion, and a plug blade 1010 The self-locking member 500 further has a guide slope 520 that contacts the plug blade 1010, and in the process of the plug blade 1010 being inserted into the insertion opening 211 and contacting the guide slope 520, the self-locking member 500 first moves together with the floating member 400 from a first position to a second position, and in the second position, the self-locking member 500 receives contact of the plug blade 1010 by the guide slope 520, and then moves along the second direction D2 from the unlocked position to the locked position, and when the self-locking member 500 is in the locked position, the first locking part contacts the second locking part and moves along the first direction D1 The movable cover 200 is locked and fitted, and at this time, it is no longer able to move to the storage position along the first direction D1. Furthermore, by installing the transmission assembly 600, the direction of movement of the floating member 400 and the movable cover 200 is reversed, that is, when the floating member 400 moves to the second position, the movable cover 200 moves to the usage position. By installing the elastic member and providing force to the self-locking member 500, the self-locking member 500 can automatically return to the unlocked position after the plug blade 1010 is pulled out.By using the above technical means, after the plug device 1000 is inserted into the outlet device, the degree of freedom of movement of the movable cover 200 along the first direction D1 can be restricted. This prevents the movable cover 200 from being pressed due to erroneous operation, which could create a gap between the plug device 1000 and the movable cover 200, thereby reducing the risk of electric shock and further improving electrical safety.

[0041] Referring also to Figures 10, 11, and 14, the outlet device further includes a second return member, which is connected to the movable cover 200 and applies a force to the movable cover 200 that moves it toward the storage position along the first direction D1. After the plug device 1000 is inserted into the outlet device, the second return member is in an energy storage state, and after the plug device 1000 is separated from the outlet device, the second return member releases its elastic potential energy and drives the movable cover 200 toward the storage position.

[0042] Referring to Figures 8 to 16, and Figures 19 and 20, in the implementation of the transmission assembly 600, for example, the first transmission member may be configured as a first rack 610, the second transmission member as a second rack 620, and the direction-changing transmission member as a gear 630. The teeth on both sides of the gear 630, located on opposite sides, mesh with the first rack 610 and the second rack 620, respectively. The longitudinal directions of the first rack 610 and the second rack 620 are both parallel to the first direction D1. In the process of inserting the plug device 1000 into the outlet device, the plug blades 1010 contact the self-locking member 500, driving the floating member 400 and the movable cover 200 apart from each other. When the distance between the movable cover 200 and the floating member 400 is greatest, there is still a certain distance between the movable cover 200 and the plug device 1000. During the process of inserting the plug device 1000 into the outlet device, the self-locking member 500 comes into contact with the guide slope 520, causing the self-locking member 500 to move from the unlocked position to the locked position along the second direction D2 until the self-locking member 500 is switched to the locked position. At this time, the degree of freedom of the movable cover 200 along the first direction D1 is restricted, preventing the movable cover 200 from being pressed and moving to the storage position due to erroneous operation.

[0043] Referring to Figures 10 to 14 and Figures 18 to 20, the first guide member may include a first guide groove 310, which is recessed in a first direction D1 from the surface of the support base 300 adjacent to the upper base 110, that is, the first guide groove 310 is recessed in a first direction D1 from the surface of the support base 300 adjacent to the opening 111. The external shape of the floating member 400 conforms to the first guide groove 310. The floating member 400 is slidably fitted into the first guide groove 310 in a first direction D1, and the floating member 400 in a second position abuts against the groove bottom surface of the first guide groove 310. The second guide member is configured as a second guide groove 410 recessed in a second direction D2 from one side of the floating member 400. The self-locking member 500 is slidably fitted into the second guide groove 410 along the second direction D2. The direction of the opening of the second guide groove 410 is the same as the direction in which the self-locking member 500 moves from the locked position to the unlocked position. A locking through hole 411 is provided at the bottom of the second guide groove 410 through which the second locking portion moves along the second direction D2, and a first insertion notch 420 is provided on the side of the second guide groove 410 that is close to the movable cover 200 through which the plug blade 1010 moves. As the plug blade 1010 is inserted into the outlet, it passes through the insertion opening 211 and the first insertion notch 420 of the movable cover 200 in sequence, before contacting the guide slope 520 of the self-locking member 500. Before the self-locking member 500 reaches the bottom of the second guide groove 410, its freedom of movement along the second direction D2 is restricted. Therefore, the self-locking member 500 is driven by the contact force of the plug blade 1010 to move the floating member 400 together with it. As the self-locking member 500 moves along the second direction D2 due to the contact between the guide slope 520 and the plug blade 1010 until the floating member 400 moves to the second position, the second locking portion penetrates the locking through hole 411 and contacts the first locking portion, preventing the floating member 400 and the movable cover 200 from moving along the first direction D1.

[0044] After the plug blade 1010 is fully inserted into the outlet, it is electrically connected to the plug receptacle located inside the outlet. Therefore, when the floating member 400 is in the second position and the self-locking member 500 is in the locked position, part of the plug blade 1010 abuts against the second end 522 of the guide slope 520, and the other part is inserted into the plug receptacle. In contrast, referring to Figures 10 to 14 and Figures 18 to 20, in the outlet device according to the present invention, the support base 300 has a second insertion notch 320 on the surface facing the upper base 110, and when the floating member 400 is in the first position, the first insertion notch 420 and the second insertion notch 320 of the floating member 400 are joined to form an insertion through hole 800 that fits the plug blade 1010. After the plug blade 1010 passes through the insertion opening 211 of the movable cover 200, it enters the insertion through hole 800, and the insertion through hole 800 can be used to position the plug blade 1010. Meanwhile, in the process of continuing to insert the plug blade 1010, the first insertion notch 420 and the second insertion notch 320, which are spaced apart from each other, can be used to guide the plug blade 1010 and prevent distortion of the plug blade 1010.

[0045] Referring to Figures 10 to 14 and Figures 18 to 23, a guide groove 340 extending along a first direction D1 is provided in the support base 300 between the two second insertion notches 320, and the guide groove 340 communicates with the groove of the first guide groove 310. Correspondingly, a first guide block 430 is provided in the floating member 400 into which the guide groove 340 is slidably fitted along the first direction D1. A second guide block 541 that fits the guide groove 340 may also be provided in the self-locking member 500. In this way, during the process in which the floating member 400 and the self-locking member 500 move along the first direction D1, the guide groove 340 is configured not only to slidably guide and fit with the self-locking member 500 and the floating member 400, respectively, along the first direction D1, but can also restrict the positions of the floating member 400 and the self-locking member 500 along a third direction D3.

[0046] Referring to Figures 10 to 14 and Figures 18 to 20, the socket 211 of the movable cover 200 includes at least two first sockets 211a and may also include one second socket 211b, the two first sockets 211a may correspond to the null and live polarity of the power cord, and the second socket 211b corresponds to the polarity of the ground wire of the power cord. For example, the movable cover 200 may have only two first sockets 211a to fit a plug device 1000 having two plug blades 1010, or it may have two first sockets 211a and one second socket 211b to fit a plug device 1000 having three plug blades 1010, or the two configurations above may be combined to have five sockets 211, specifically, including two sets of sockets 211, one set of which has two first sockets 211a and the other set of which has two first sockets 211a and one second socket 211b. Correspondingly, the plug blades 1010 of the plug device 1000 are also divided into first plug blades 1011 and second plug blades 1012. With a proper connection between the plug device 1000 and the outlet, the plug blade 1010 inserted into the first socket 211a can be designated as the first plug blade 1011, and the plug blade 1010 inserted into the second socket 211b can be designated as the second plug blade 1012.

[0047] Referring also to Figures 10 to 14, the outlet device further includes a first plug receptacle corresponding to the first socket 211a. The first plug receptacle is connected to the support base 300 and is located near the movement path of the floating member 400, and both the first plug receptacle and the guide slope 520 correspond to the insertion through hole 800. In the process of inserting the plug blade 1010 into the first plug receptacle, the plug blade 1010 moves from the first end 521 to the second end 522 in contact with the guide slope 520. In other words, in the process of the plug blade 1010 moving from the first end 521 to the second end 522 of the guide slope 520, the plug blade 1010 is inserted into the first plug receptacle.

[0048] Referring to Figures 10 to 23, in terms of achieving a locking fit between the self-locking member 500 and the support base 300, the first locking portion of the present invention may be configured as a locking opening 311 extending from the side wall of the first guide groove 310 along the second direction D2, and the second locking portion may be configured as a locking projection 510 projecting along the second direction D2, with the locking projection 510 being closer to the first end 521 of the guide slope 520 than to the second end 522. The fitting of the locking projection 510 and the locking opening 311 can reliably restrict the degree of freedom of the self-locking member 500 along the first direction D1.

[0049] Referring to Figures 10 to 14 and 18 to 23, the locking opening 311 may extend along the first direction D1 to the outer surface of the support base 300. This is advantageous because it increases the insertion depth of the locking projection 510 into the locking opening 311, thereby making the locking fit between the self-locking member 500 and the support base 300 more reliable and stable.

[0050] Referring to Figures 8 to 23, the two first plug receptacles are spaced apart along a third direction D3 that is perpendicular to the first direction D1 and the second direction D2. The self-locking member 500 has two guide bevels 520, each corresponding to one of the two first plug receptacles. For example, the self-locking member 500 has two locking arms and a connecting portion 540 connected between the same ends of the two locking arms. A second guide block 541 is installed in the center of the connecting portion 540 on the side away from the locking arms. The locking arms include a guide wedge block and a locking projection 510 arranged along the second direction D2, and the dimensions of the outer contour of the guide wedge block are greater than those of the locking projection 510, so that a positional limiting step is formed between the guide wedge block and the locking projection 510, and the positional limiting step can restrict the guide wedge block from passing through the locking through hole 411. The guide bevels 520 are installed on the guide wedge block.

[0051] Referring to Figures 10 to 14 and Figures 19 to 23, the elastic member may be configured as a first compression spring 700. The side of the self-locking member 500 facing the bottom of the second guide groove 410 is connected to one end of the first compression spring 700, and the other end of the first compression spring 700 is connected to the bottom of the second guide groove 410. For example, a first spring positioning hole 530 is installed on the surface of the self-locking member 500 facing the bottom of the second guide groove 410, and a first spring positioning column 412 is installed at the bottom of the second guide groove 410. Of course, the first spring positioning hole 530 may be installed at the bottom of the second guide groove 410, and the first spring positioning column 412 may be installed on the self-locking member 500. The first spring positioning hole 530 accommodates and positions one end of the first compression spring 700, and the first spring positioning column 412 positions the other end of the first compression spring 700.

[0052] Referring to Figures 8 to 17, as the movable cover 200 moves along the first direction D1, the outlet device of the present application further includes a third guide mechanism located within the housing space 130 to accurately guide the movement of the movable cover 200. The third guide mechanism is connected to the movable cover 200 and slidably fitted to the support base 300 along the first direction D1. In another embodiment of the present application, the third guide mechanism may be slidably fitted to the lower base 120 or the upper base 110 along the first direction D1.

[0053] Furthermore, referring to Figures 8 to 18, the second return member is configured as a second compression spring 710. The third guide mechanism may be configured as a guide column 231 extending along the first direction D1, and the support base 300 has a guide hole 330 that fits the guide column 231. The movable cover 200 is slidably fitted to the support base 300 along the first direction D1 by the fitting of the guide column 231 and the guide hole 330. One end of the guide column 231 adjacent to the upper base 110 has a second spring positioning hole 231a that fits the second compression spring 710, and the upper base 110 has a second spring positioning column 112 on its inner surface that fits the second compression spring 710. The second spring positioning hole 231a and the second spring positioning column 112 ensure that the second compression spring 710 is reliably positioned and prevent the second compression spring 710 from separating.

[0054] Referring to Figures 8 to 18, the movable cover 200 is cap-shaped, and a groove is formed on the side of the movable cover 200 facing into the housing space 130. The groove accommodates the support base 300 when the movable cover 200 is in the storage position. Specifically, the movable cover 200 has a panel section 210, a support section 220, and a canopy section 230. The panel section 210 fits into the opening 111, and an insertion opening 211 is provided in the panel section 210. When the panel section 210 is in the storage position, it is flush with the outer surface of the upper base 110. The support section 220 is configured to extend from the outer peripheral edge of the panel section 210 toward the lower base 120 along the first direction D1, and is installed continuously along the circumferential direction of the panel section 210, and is slidably fitted into the opening 111 along the first direction D1. The canopy portion 230 is connected to the outside of one end that is separated from the panel portion 210 of the guide portion. When the canopy portion 230 is in the working position, it abuts against the upper base 110 and forms a position-restricting fit with the upper base 110 along the first direction D1.

[0055] Referring to Figures 8 to 23, the first rack 610, the second rack 620, and the gear 630 of this application may each be installed in pairs. The guide posts 231 and the guide holes 330 may each be installed in pairs.

[0056] Two first racks 610 are positioned separately on the inner walls on both sides of the movable cover 200 along the third direction D3. Two second racks 620 are positioned on both outer sides of the floating member 400 along the third direction D3, and one end of each second rack 620 that is close to the movable cover 200 extends along the third direction D3 and connects to the floating member 400. The support base 300 is provided with notches that allow the second racks 620 to slide, corresponding to the extended portion of the second racks 620. The notches communicate with the first guide groove 310, and the dimensions along the first direction D1 match the range of motion of the extended portion of the second racks 620. Two gears 630 are positioned separately on both outer sides of the support base 300 along the third direction D3. The two guide posts 231 are positioned separately on either side of the movable cover 200 along the second direction D2 or the third direction D3, and are connected to the canopy section 230.

[0057] In the outlet device according to the embodiment of the present application, a base having an opening is installed, and a movable cover having an insertion slot along a first direction is movably installed in the opening, so that the movable cover is in the use position when it protrudes from the opening and in the storage position when the movable cover retracts into the storage space, a first locking part perpendicular to the first direction is installed in the base, and a floating member is movably connected in the base along the first direction, so that the floating member moves between a first position and a second position relative to the base along the first direction, and when the floating member is in the first position it is closer to the movable cover, and a self-locking member is movably connected in the base along the second direction and contacts a second locking part that fits the first locking part and a plug blade. The device further includes a guide slope, and in the process of the plug blade being inserted into the socket and contacting the guide slope, the self-locking member first moves together with the floating member from a first position to a second position. In the second position, the self-locking member receives contact from the plug blade by the guide slope, and then moves along the second direction from the unlocked position to the locked position. When the self-locking member is in the locked position, the first locking part contacts the second locking part and locks together along the first direction. At this time, the movable cover is unable to move to the storage position along the first direction. Furthermore, by installing a transmission assembly, the direction of movement of the floating member and the movable cover is reversed, that is, when the floating member moves to the second position, the movable cover moves to the usage position. By using the above technical means, after the plug device is inserted into the outlet device, the degree of freedom of movement of the movable cover along the first direction can be restricted, thereby preventing the movable cover from being pressed due to erroneous operation and creating a gap between the plug device and the movable cover, reducing the risk of electric shock, and further improving electrical safety.

[0058] While exemplary embodiments have been described here with reference to the drawings, it should be understood that these exemplary embodiments are merely illustrative and are not intended to limit the scope of this application. Those skilled in the art can make various changes and modifications without departing from the scope and spirit of this application. All such changes and modifications are intended to fall within the scope of this application as described in the attached claims. [Explanation of Symbols]

[0059] 100 base 110 Upper Base 111 Aperture 112 Second spring positioning column 120 Lower Base 130 Containment space 200 movable cover 210 Panel section 211 outlets 211a First socket 211b Second socket 220 Support part 230 Eaves section 231 Guidepost 231a Second spring positioning hole 300 Support stand 310 First guide groove 311 Locking port 320 Second insertion notch 330 Guide hole 340 guide grooves 350 rotational shaft 400 Floating Member 410 Second guide groove 411 Locking through hole 412 First spring positioning column 420 First insertion notch 430 First guide block 500 Self-locking component 510 Locking protrusion 520 Guide Slope 521 1st end 522 2nd end 530 First spring positioning hole 540 Connection part 541 Second guide block 600 Transmission Assembly 610 Rack 1 620, Rack 2 630 Gears 700 First Compression Spring 710 Second compression spring 800 Insertion through hole 1000 Plug Device 1010 Bung blade 1011 First plug blade 1012 Second plug blade 10 Drive Assembly 104 Power cord 114 First return member 115 Second return member P1 Usage position P2 Storage location DP1 First Dimension DP2 Second Dimension D1 1st direction D2 2nd direction D3 Third direction

Claims

1. Housing and A movable cover coupled to the housing and movable relative to the housing between a usage position and a storage position, wherein the movable cover protrudes at least partially above the outer surface of the housing in the usage position, The insertion opening in the housing or the movable cover, The drive assembly within the housing, The movable cover is moved from the storage position to the usage position in response to the insertion of the plug device. The movable cover moves from the usage position to the storage position in response to the removal of the plug device. A drive assembly configured as follows, including, The aforementioned drive assembly is A floating member is installed within the housing so as to be movable between a first position and a second position, wherein the floating member is closer to the movable cover at the first position than at the second position, and is configured to slide in a direction away from the insertion opening in response to the insertion of the plug device, A transmission assembly connected to the floating member and the movable cover, wherein the transmission assembly is configured to drive the movable cover to the operating position in response to the floating member sliding away from the insertion opening, A first spring connected to the housing and the floating member, configured to apply force to the floating member in order to move the floating member toward the storage position, A second spring connected to the movable cover and the housing, configured to apply force to the movable cover in order to move the movable cover toward the storage position, A power supply device characterized by including

2. The aforementioned transmission assembly is The power supply device according to claim 1, comprising a gear connected to the floating member and the movable cover, wherein the gear is configured to drive the movable cover to the operating position in response to the floating member sliding away from the insertion opening.

3. The transmission assembly further includes a first gear rack and a second gear rack, the first gear rack being connected to the movable cover, and the second gear rack being connected to the floating member. The gear is rotatably connected to the housing with respect to the pivot axis, The power supply device according to claim 2, characterized in that both sides of the gear with respect to the pivot shaft are connected to the first gear rack and the second gear rack, respectively, so as to be able to transmit power.

4. The power supply device according to claim 3, characterized in that the gear meshes with the first gear rack and the second gear rack, respectively.

5. The housing has an opening, the movable cover is installed in the opening, and the housing is A support base installed within the housing and corresponding to the opening, the support base further includes a support base connected to the housing and having a first guide groove, The power supply device according to claim 1, characterized in that the floating member is movably connected to the first guide groove.

6. The first guide groove is recessed in a first direction from the surface of the support base adjacent to the opening, The floating member is fitted into the first guide groove along the first direction, The power supply device according to claim 5, characterized in that the floating member abuts against the groove bottom surface of the first guide groove at the second position.

7. Within the housing, there is a locking opening that extends along a second direction perpendicular to the direction of movement of the movable cover, A locking projection that fits into the aforementioned locking opening, and Guide slope configured to contact the plug blade of the plug device A self-locking member comprising, The self-locking member is movably connected to the floating member between a locked position and an unlocked position along the second direction. The self-locking member in the locked position is configured to bring the locking projection into contact with the locking opening, and the self-locking member in the unlocked position is configured to separate the locking projection from the locking opening. The guide slope has a first end and a second end that are spaced apart along the second direction, The power supply device according to claim 1, further comprising a self-locking member, the distance from the first end to the movable cover being smaller than the distance from the second end to the movable cover.

8. The housing has an opening, and the movable cover is installed in the opening. The housing includes an upper base, a lower base, and a housing space located between the upper base and the lower base. The opening is located on the upper base, The power supply device is A support base located within the aforementioned storage space, corresponding to the aforementioned opening, connected to the aforementioned lower base, and having the aforementioned locking port installed, The power supply device according to claim 7, further comprising a spring located within the aforementioned housing space, with both ends connected to the floating member and the self-locking member, respectively.

9. The power supply device according to claim 8, characterized in that the floating member has a second guide groove, and the self-locking member is movably connected to the second guide groove along the second direction.

10. The self-locking member is slidably fitted into the second guide groove along the second direction, The direction of the opening of the second guide groove is the same as the direction in which the self-locking member moves from the locked position to the unlocked position. A hole is provided at the bottom of the second guide groove through which the locking projection moves and passes. The power supply device according to claim 9, characterized in that the second guide groove has a first insertion notch through which the plug blade moves and passes, on the side adjacent to the movable cover.

11. The surface of the support base facing the upper base has a second insertion notch, When the floating member is in the first position, the first insertion notch and the second insertion notch come into contact to form a second hole that fits the plug blade. The power supply device further includes a plug receptacle, The plug receptacle is connected to the support base and is located near the movement path of the floating member. The plug receptacle and the guide slope both correspond to the second hole, The power supply device according to claim 10, characterized in that the plug blade is configured to move from the first end to the second end in contact with the guide slope when the plug blade is inserted into the plug receptacle.

12. The power supply device according to claim 8, further comprising a third guide mechanism in the housing space, which is connected to the movable cover and slidably fitted to the support base or the lower base.

13. The housing has an opening, the movable cover is cap-shaped, and the movable cover is A panel that fits the opening, wherein the insertion opening is provided on the panel, and the panel is flush with the first surface of the housing in the storage position, A support portion is formed to extend from the outer peripheral edge of the panel toward the second surface of the housing, is installed continuously along the circumferential direction of the panel, is slidably fitted into the opening, and the first surface and the second surface face each other. The power supply device according to claim 1, further comprising: a canopy portion connected to the outside of the end of the support portion away from the panel, and which, when in the usage position, abuts against the housing.

14. The power supply device according to claim 11, wherein two plug receptacles are installed at intervals along a third direction perpendicular to the direction of movement of the movable cover and the second direction, and the self-locking member has two guide slopes, and the two guide slopes each further include two plug receptacles corresponding to the two plug receptacles.

15. The power supply device according to claim 1, characterized in that the movable cover in the storage position is substantially flush with the outer surface of the housing.

16. Housing and An outlet coupled to the housing, the outlet including a cover, the cover being movable between a usage position and a storage position, and when the cover is in the usage position, the outlet extending at least partially above the outer surface of the housing, A drive assembly disposed within the housing and configured to move the cover between a usage position and a storage position, the drive assembly comprising at least one toothed wheel and at least one toothed rack, Includes, The aforementioned drive assembly is A floating member is installed within the housing so as to be movable between a first position and a second position, wherein the floating member is closer to the cover at the first position than at the second position, and is configured to slide in a direction away from the insertion opening in response to the insertion of the plug device. A transmission assembly connected to the floating member and the cover, configured to drive the cover to the working position as the floating member slides away from the insertion opening; A first spring connected to the housing and the floating member, configured to apply force to the floating member in order to move the floating member toward the storage position, A second spring connected to the cover and the housing, configured to apply force to the cover in order to move the cover toward the storage position, An outlet device characterized by including the following.

17. Plugging device and It is an electrical outlet device, Housing and A movable cover coupled to the housing and movable relative to the housing between a usage position and a storage position, wherein the movable cover protrudes at least partially above the outer surface of the housing in the usage position, The drive assembly within the housing, The movable cover is moved from the storage position to the usage position in response to the insertion of the plug device. The movable cover moves from the usage position to the storage position in response to the removal of the plug device. A drive assembly, including, configured as follows: Outlet device and Includes, The aforementioned drive assembly is A floating member is installed within the housing so as to be movable between a first position and a second position, wherein the floating member is closer to the movable cover at the first position than at the second position, and is configured to slide in a direction away from the insertion opening in response to the insertion of the plug device, A transmission assembly connected to the floating member and the movable cover, wherein the transmission assembly is configured to drive the movable cover to the operating position in response to the floating member sliding away from the insertion opening, A first spring connected to the housing and the floating member, configured to apply force to the floating member in order to move the floating member toward the storage position, A second spring connected to the movable cover and the housing, configured to apply force to the movable cover in order to move the movable cover toward the storage position, A system characterized by including

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