Small night lamp adapter

Abstract

The utility model discloses a small night lamp adapter, which comprises a shell and a USB plug assembly rotatably arranged on the shell, the shell comprises a lamp holder for detachably arranging a small night lamp, the USB plug assembly is electrically connected with the lamp holder, and the USB plug assembly is plugged with an external power supply to supply power to the small night lamp. The shell is provided with a control switch used for controlling connection and disconnection of a circuit of the USB plug assembly and the lamp holder. The small night lamp has the advantages that a voltage conversion circuit does not need to be arranged, the bulb of the small night lamp can be replaced, the posture can be adjusted, and the application cost of the small night lamp is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of night lights, in particular to a night light adapter. Background Art

[0002] Night lights are often used as auxiliary lighting equipment when people go to bed at night, so that users can see the corridors or objects in the house clearly without having to get up and turn on the headlights when they get up in the middle of the night.

[0003] For example, in the Chinese patent literature, the authorization announcement number CN204100006U authorized and announced on January 14, 2015, a new type of night light, including a lamp body and a lamp bead, the lamp body includes a lamp shell and a rotating plug arranged on the lamp shell and rotatable, a control circuit board with an electronic transformer is arranged inside the lamp shell, a power switch and a USB socket are arranged on the control circuit board, a USB plug used in conjunction with the USB socket is arranged on the lamp bead, and the lamp bead can be plugged into the USB socket through the USB plug.

[0004] The disadvantages of the prior art are that, considering the night application environment of the night light, the brightness of the lamp beads is usually low, that is, the required voltage is low. When the lamp beads are connected by the lamp body, a voltage conversion circuit needs to be set in the lamp body, which makes the volume and cost of the lamp body high, affecting the sales and application of the night light. In addition, the night light form disclosed in the prior art, in which the USB plug is directly connected to the lamp beads, has the problem that the position of the night light cannot be adjusted.

[0005] Based on the above-mentioned deficiencies in the prior art, it is necessary to design a night light adapter which can adjust the direction of the night light and facilitate the switching of the night light without the need for a voltage transformer circuit, thereby reducing the application cost of the night light. Utility Model Content

[0006] In order to overcome the above-mentioned deficiencies in the prior art, the utility model provides a night light adapter, which does not need to be equipped with a voltage conversion circuit, reduces the application cost of the night light, and the illumination direction of the night light can be changed and the posture can be adjusted, thereby improving the universality of the night light.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A night light adapter comprises a shell and a USB plug assembly rotatably arranged on the shell, the shell comprises a lamp holder for detachably setting the night light, the USB plug assembly is electrically connected to the lamp holder, the USB plug assembly is plugged into an external power source to power the night light, and a control switch for controlling the on-off of the circuit between the USB plug assembly and the lamp holder is provided on the shell.

[0009] The required low voltage can be directly obtained by plugging the USB plug assembly into the USB socket of the external power source. There is no need to set a voltage conversion circuit inside the night light converter, which reduces the application cost of the night light. The night light can be replaced through the detachable connection between the night light and the lamp holder, which is convenient for maintenance. The rotation setting of the USB plug assembly and the shell allows the posture of the night light to be adjusted relative to the plug-in position of the USB plug assembly, so that the night light can be applied to plugs of various orientations, and can also be adjusted to various angles according to the needs of the user. The setting of the control switch makes it convenient for the user to directly control the lighting and turning off of the night light. The USB plug assembly powers the night light, so that the night light can be used in places where there is no conventional plug, such as in cars. The power supply is increased through USB, which increases the application scenarios of the night light.

[0010] Preferably, the USB plug assembly includes a USB plug body and a rotating seat, the USB plug body is used to be electrically connected to an external power source, the rotating seat includes a seat body connected to the USB plug body and a rotating ring rotatably connected to the shell, the shell is provided with a mounting hole, the rotating ring is inserted into the mounting hole and rotatably connected to the mounting hole. The USB plug body is plugged into the USB socket of the external power source to obtain a low voltage after voltage regulation, the rotating ring rotates with the mounting hole to realize the rotational connection between the seat body and the shell, and the seat body also has a protective function for the USB plug body.

[0011] Preferably, the rotating ring is provided with a snap ring groove coaxial therewith, a snap convex portion is provided in the mounting hole, the rotating ring extends into the mounting hole and the snap ring groove is snapped with the snap convex portion to limit the axial movement of the rotating ring relative to the mounting hole. The snap fit between the snap convex portion and the snap ring groove can limit the displacement of the rotating ring and the mounting hole in the axial direction of the mounting hole. The snap fit rotating ring and the mounting hole are easy to disassemble and assemble, which is conducive to the replacement of the USB plug assembly after it is disassembled as a whole, and is conducive to the maintenance of the night light adapter.

[0012] Preferably, a limiting groove is provided on the snap-fitting protrusion, and a positioning protrusion for matching the limiting groove is provided in the snap-fitting ring groove. The matching of the limiting groove and the positioning protrusion provides a rotation stop position between the rotating ring and the mounting hole. At the position where the positioning protrusion matches the limiting groove, the rotating ring and the mounting hole cannot rotate automatically when no external force is applied, so that the night light can stay at a desired position, realizing switching between multiple positions.

[0013] Preferably, the clamping protrusion includes four clamping protrusions arranged in a circular array around the axis of the mounting hole on the hole wall of the mounting hole, and the middle positions of the four clamping protrusions are provided with limiting grooves, and the positioning protrusion includes clamping columns symmetrically arranged on both sides of the axis of the clamping ring groove. The two clamping columns arranged on both sides of the axis of the clamping ring groove cooperate with the limiting grooves to form a symmetrical limiting effect on the rotating ring, so that the night light can stay stably at the required position, and the four limiting grooves corresponding to the four clamping protrusions arranged in a circular array around the axis of the mounting hole enable the night light to stay stably at four positions at intervals of 90 degrees.

[0014] Preferably, the shape of the clamping column is semi-cylindrical, and both ends of the clamping convex rib are provided with guiding arc surfaces for the clamping column to be clamped in. The arc surface at the edge of the clamping column facilitates the clamping column to pass through the clamping convex rib and form a limiting fit with the limiting groove, so as to prevent the clamping column from being stuck with the clamping convex rib and affecting the rotation of the rotating seat relative to the shell.

[0015] Preferably, the rotating ring and the mounting hole are respectively provided with a first limiting portion and a second limiting portion, which can contact and abut against each other during the relative rotation of the housing and the USB plug assembly to limit the rotation angle of the USB plug assembly, thereby preventing the USB plug assembly from rotating 360 degrees and causing excessive distortion of the wire connected to the USB plug assembly, thereby ensuring the service life of the wire at the rotating connection of the USB plug assembly.

[0016] Preferably, the first limiting portion is protrudingly arranged at the end of the rotating ring, the second limiting portion and the hole wall at the bottom of the mounting hole are protruding toward the inside of the mounting hole, and the circumference of the end of the rotating ring forms a separation area on the outside of the first limiting portion. When the rotating ring is rotatably connected to the mounting hole, the first limiting portion is located in the separation area to limit the rotation angle of the rotating ring.

[0017] Preferably, the axis of the lamp holder is arranged to intersect with the rotation axis of the USB plug assembly, so that the lamp holder has a certain rotation angle when the USB plug assembly and the housing rotate, which facilitates the adjustment of the irradiation direction of the night light.

[0018] Preferably, a fixing ring is sleeved on the outer periphery of the lamp holder, and the fixing ring is used to limit the decorative plate sleeved on the lamp holder, so that the night light can be used as a decorative lamp in conjunction with the decorative plate.

[0019] These features and advantages of the present invention will be disclosed in detail in the following specific implementation manners and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0021] Figure 1 It is a structural schematic diagram of a night light adapter proposed in one embodiment of the utility model;

[0022] Figure 2 This is an exploded view of a night light adapter proposed in one embodiment of the present utility model;

[0023] Figure 3 It is a schematic diagram of the internal structure of a night light adapter proposed in one embodiment of the utility model;

[0024] Figure 4 It is a structural schematic diagram of a USB plug assembly in a night light adapter proposed in one embodiment of the utility model;

[0025] Figure 5 It is a structural schematic diagram of a housing in a night light adapter proposed in one embodiment of the utility model;

[0026] Figure 6 This is a schematic diagram of the structure of the control switch inside the housing of the night light adapter proposed in one embodiment of the utility model;

[0027] Figure 7 It is a structural schematic diagram of a night light adapter proposed in one embodiment of the present utility model, which is used as a decorative light after connecting a night light and a decorative plate.

[0028] In the figure: housing 1, mounting hole 101, snap-fitting protrusion 102, guide arc surface 103, limiting groove 104, first housing 11, second housing 12, cavity 13, positioning column 14, limiting ring 15, fixing collar 16, limiting block 161, fixing ring groove 17, lamp holder 18, threaded hole 19;

[0029] Control switch 2, rotating shaft 20, lever 21, fork 22, first conductive sheet 23, second conductive sheet 24, third conductive sheet 25, fourth conductive sheet 26, spring 27, wire 28;

[0030] USB plug assembly 3, USB plug body 31, rotating seat 32, seat body 321, rotating ring 322, snap ring groove 323, positioning protrusion 324, first limiting portion 325, partition area 326, second limiting portion 327;

[0031] Night light 4, decorative panel 5. DETAILED DESCRIPTION

[0032] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0033] In the description of this embodiment, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore, cannot be understood as a limitation on the utility model. In addition, if the terms "first", "second", and "third" appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0034] Figures 1 to 6 As shown, a night light adapter proposed in one embodiment of the utility model includes a shell 1 and a USB plug assembly 3 rotatably set on the shell 1, the shell 1 includes a lamp holder 18 for detachably setting the night light, the USB plug assembly 3 is electrically connected to the lamp holder 18, the USB plug assembly 3 is plugged into an external power supply to power the night light, and the shell 1 is provided with a control switch 2 for controlling the on-off of the circuit between the USB plug assembly 3 and the lamp holder 18.

[0035] In this embodiment, the required low voltage is directly obtained by plugging the USB plug assembly 3 with the USB socket of the external power source. The external power source can be a car USB, a power bank, a charging plug with a USB socket, and a charging socket with a USB socket, etc. There is no need to set a voltage conversion circuit inside the night light converter, which reduces the application cost of the night light. Through the detachable connection between the night light and the lamp holder 18, the night light can be replaced and is easy to maintain. Through the rotation setting of the USB plug assembly 3 and the housing 1, the posture of the night light relative to the plug position of the USB plug assembly 3 can be adjusted to a certain extent, so that the night light can be applied to plugs of various orientations, and can also be adjusted to various different angles according to the needs of the user. The setting of the control switch 2 is convenient for the user to directly control the lighting and turning off of the night light, which is convenient for night use. The USB plug assembly 3 is powered by the night light, so that the night light can be used in places where there is no conventional plug, such as in a car, and the application scenarios of the night light are increased by powering the night light through the USB.

[0036] In this embodiment, the housing 1 and the USB plug assembly 3 constitute the mechanical structure of the night light adapter, the housing 1 can be connected to the bulb of the night light, and the USB plug assembly 3 is used to realize USB plugging with an external power source. The external power source, the USB plug assembly 3, the control switch 2, the lamp holder 18 and the night light form a closed circuit loop in series, and the USB plug assembly 3 is connected to the external power source to realize circuit connection, and the on-off control of the closed circuit loop is realized by the control switch 2. When the closed circuit loop is connected, the night light is illuminated, and when the closed circuit loop is disconnected, the night light is turned off.

[0037] As an example of the present invention, Figure 2 and Figure 7 As shown,

[0038] The shell 1 includes a first shell 11 and a second shell 12 which are connected to each other. After the first shell 11 and the second shell 12 are assembled, a cavity 13 is formed inside the two shells. The first shell 11 is rotatably connected to the USB plug assembly 3. The control switch 2 is arranged in the second shell 12. A plurality of positioning columns 14 are arranged in the second shell 12. A positioning hole matching the positioning columns 14 is arranged in the first shell 11. After the first shell 11 and the second shell 12 are plugged and matched through the positioning columns 14 and the positioning holes, the positioning columns 14 and the first shell 11 are locked by bolts to realize the assembly of the first shell 11 and the second shell 12.

[0039] In one embodiment of the night light adapter of the present invention, a fixing ring 16 is sleeved on the outer periphery of the lamp holder 18, and the fixing ring 16 is used to limit the decorative plate 5 sleeved on the lamp holder. Figure 7 As shown, the upper ends of the first shell 11 and the second shell 12 are spliced ​​to form a lamp holder 18, a limiting ring 15 is provided on the periphery of the lamp holder 18, a fixing ring 16 is sleeved on the periphery of the lamp holder 18, a circle of fixing ring groove 17 is provided in the fixing ring 16, and after the fixing ring 16 is sleeved on the lamp holder 18, the fixing ring groove 17 is engaged with the limiting ring 15 to prevent the fixing ring 16 from falling out. The fixing ring 16 is sleeved on the lamp holder 18 and the fixing method of the fixing ring 16 being sleeved on the lamp holder 18 and being clamped can limit the decorative plate 5 sleeved on the lamp holder 18, Figure 7 The decorative plate 5 includes a decorative part that covers one side of the night light 4 and a connecting part connected to the lamp holder 18. The connecting part of the decorative plate 5 is provided with a through hole that is mounted on the lamp holder 18. After the connecting part of the decorative plate 5 is mounted on the lamp holder, the fixing ring 16 and the lamp holder 18 are connected to limit the decorative plate 5. In order to improve the limiting effect of the fixing ring 16, an end of the fixing ring 16 facing the connecting part of the decorative plate is provided with an outwardly protruding convex plate 161, and the limiting area of ​​the fixing ring 16 on the connecting part of the decorative plate is expanded by the convex plate 161.

[0040] The control switch 2 is a paddle switch, and the control switch 2 includes a lever 21 located at the outer end of the housing 1 and a fork 22 located inside the housing 1. The lever 21 and the fork 22 are integrally formed of insulating materials. A rotating shaft 20 is provided between the lever 21 and the fork 22. The lever 21 is rotatably arranged with the housing 1 through the rotating shaft 20. The positive and negative electrodes of the USB plug assembly 3 are respectively connected to the first conductive sheet 23 and the second conductive sheet 24 through the wire 28. The positive and negative electrodes of the lamp holder 18 are respectively connected to the third conductive sheet 25 and the fourth conductive sheet 26. The first conductive sheet 23 is in contact with the third conductive sheet 25. The second conductive sheet 24 and the fourth conductive sheet 26 are arranged at intervals, a spring 27 is arranged between the outer end of the fork 22 away from the lever 21 and the housing 1, the fork 22 of the control switch 2 is located in the cavity 13 of the housing 1, the spring 27 is located in the cavity 13, the first conductive sheet 23 and the second conductive sheet 24 are fixed on the housing 1 and one end is inserted into the cavity 13, the third conductive sheet 25 and the fourth conductive sheet 26 extend from the lamp holder 18 into the cavity 13, and the control switch 2 fork 22 controls whether the second conductive sheet 24 and the fourth conductive sheet 26 are in contact in the cavity 13. When the lever 21 is moved to make the fork 22 rotate toward the fourth conductive sheet 26, the spring 27 provides elastic pressure to the fork 22, so that the fork 22 presses the fourth conductive sheet 26, so that the fourth conductive sheet 26 is deformed and contacts the second conductive sheet 24, and the lamp holder 18 and the USB socket assembly are connected. When the lever 21 is moved to rotate the fork 22 toward the third conductive sheet 25, the fourth conductive sheet 26 and the second conductive sheet 24 remain separated, the lamp holder 18 and the USB socket assembly circuit are in an open circuit state, and the night light cannot be powered. When the night light is connected to the lamp holder 18, the positive and negative poles of the night light correspond to the third conductive sheet 25 and the fourth conductive sheet 26 to contact and complete the electrical connection, and when the lamp holder 18 and the USB socket assembly circuit are connected and the USB socket assembly is plugged into an external power supply for power supply, the night light emits light. Since the fourth conductive sheet 26 needs to have elastic deformation ability, the second conductive sheet 24 needs to withstand the pressure of the fourth conductive sheet 26, so the second conductive sheet 24 and the fourth conductive sheet 26 are made of metal. The first conductive sheet 23 and the third conductive sheet 25 are fixed structures. In this embodiment, they are made of metal sheets and are in contact and fixed to keep the two in a powered state. As a simple replacement for this solution, the first conductive sheet 23 and the third conductive sheet 25 use an integrated metal strip or graphite strip or wire, etc.

[0041] As a simple replacement of the above example, the control switch 2 adopts other types of switches such as a push switch or a dip switch.

[0042] As a simple replacement of the above example, the first shell 11 and the second shell 12 are fixed by screw connection or clamping.

[0043] The night light is not shown in this embodiment. Since the present application directly uses the USB plug assembly 3 to connect the low-voltage circuit, the night light provides light suitable for low-brightness lighting at night. The interface of the night light can be a bayonet type or a spiral type used by conventional light bulbs. The lamp holder 18 is spirally connected or snapped to the night light. For the adaptability of night lights with different bayonet ports, the lamp holder 18 can select an appropriate method to match the night lights with different bayonet ports as needed, so as to achieve convenient disassembly and assembly of the lamp holder 18 and the night light. Figure 2 In the example shown, the lamp holder 18 is connected to the night light in a screw-like manner.

[0044] The night light uses a bulb or lamp bead with a spiral interface, or a bayonet-type bulb or lamp bead, or a USB-type bulb or lamp bead. Different types of lamp beads can be selected as night light illumination according to the connection form of the lamp holder 18.

[0045] One of the embodiments of the present invention proposes a night light adapter, wherein the USB plug assembly 3 includes a USB plug body 31 and a rotating seat 32, wherein the USB plug body 31 is used to electrically connect to an external power source, and the rotating seat 32 includes a seat body 321 connected to the USB plug body 31 and a rotating ring 322 rotatably connected to the housing 1, wherein the housing 1 is provided with a mounting hole 101, and the rotating ring 322 is inserted into the mounting hole 101 and rotatably connected to the mounting hole 101. Specifically, the rotating ring 322 is in the shape of a circular ring, and the mounting hole 101 is in the shape of a cylindrical blind hole, and the outer diameter of the rotating ring 322 is in clearance with the diameter of the mounting hole 101, so that the rotating ring 322 can rotate around the axis of the mounting hole 101 in the mounting hole 101. The rotating seat 32 is used to fix the USB plug body 31 and complete the rotational connection of the USB plug body 31 relative to the housing 1.

[0046] In this embodiment, the USB plug body 31 and the rotating seat 32 are fixed by bolts. As a simple replacement of the above solution, the USB plug body 31 and the rotating seat 32 are fixed by snapping or bonding.

[0047] Furthermore, in order to realize the rotation setting of the rotating ring 322 in the mounting hole 101, the rotating ring 322 is provided with a coaxial snap ring groove 323, and the mounting hole 101 is provided with a snap protrusion 102. The rotating ring 322 extends into the mounting hole 101 and the snap ring groove is snapped with the snap protrusion 102 to limit the axial movement of the rotating ring 322 relative to the mounting hole 101. The snap ring groove 323 is located on the outer periphery of the rotating ring 322, and the snap protrusion 102 is located on the hole wall of the mounting hole 101. The groove walls of the snap ring groove 323 correspond to the two ends of the rotating ring 322 in the axial direction, so that after the snap protrusion 102 is snapped into the snap ring groove 323, a limit is formed to prevent the snap protrusion 102 from easily falling out of the snap ring groove 323. For example, as Figure 4 and Figure 5 As shown, the clamping protrusion 102 includes four clamping protrusions arranged in a circular array around the axis of the mounting hole 101 on the hole wall of the mounting hole 101, and the clamping ring groove 323 is annular. When the rotating ring 322 is inserted into the mounting hole 101, the clamping protrusion 102 is pressed into the clamping ring groove 323 along the axial direction of the mounting hole 101. The housing 1 and the rotating seat 32 are both made of insulating materials such as plastic, which have certain ductility. When the clamping protrusion 102 and the clamping ring groove 323 are matched, the two have a certain elastic deformation to facilitate assembly. The four clamping protrusions cooperate with the clamping ring groove 323 to form a circumferentially stable limiting effect on the rotating ring 322.

[0048] In one embodiment of the present invention, a night light adapter is provided, wherein a stopper groove 104 is provided on the clamping protrusion 102, and a positioning protrusion 324 is provided in the clamping groove for matching the stopper groove 104. Figure 4 and Figure 5 In the example shown, the middle positions of the four snap-fit ​​convex ribs are all provided with a limiting groove 104, and the positioning protrusion 324 is a snap-fit ​​column symmetrically arranged on both sides of the axis of the snap-fit ​​groove. The snap-fit ​​column is in the shape of a semi-cylinder, and the two ends of the snap-fit ​​convex rib are respectively provided with a guide arc surface 103 for facilitating the snap-fitting of the snap-fit ​​column. The guide arc surface 103 cooperates with the arc shape of the snap-fit ​​column to facilitate the snap-fitting of the snap-fit ​​column and the limiting groove 104. The two snap-fit ​​columns arranged on both sides of the axis of the snap-fit ​​ring groove cooperate with the limiting groove to form a symmetrical limiting effect on the rotating ring, so that the night light can stay stably at the required position. The four limiting grooves corresponding to the four snap-fit ​​convex ribs arranged in a circular array around the axis of the mounting hole enable the night light to stay stably at four positions at intervals of 90 degrees.

[0049] In order to prevent the rotating ring 322 and the mounting hole 101 from rotating 360 degrees and affecting the service life of the wire 28 connected to the USB plug body 31, one embodiment of the present invention provides a night light adapter, in which the rotating ring 322 and the mounting hole 101 are respectively provided with a first limit portion 325 and a second limit portion 327, which can contact and abut against each other during the relative rotation of the housing 1 and the USB plug assembly 3 to limit the rotation angle of the USB plug assembly 3. Specifically, as Figure 4 and Figure 5As shown, the first limiting portion 325 is convexly arranged at the end of the rotating ring 322, the second limiting portion 327 and the hole wall at the bottom of the mounting hole 101 are convexly arranged toward the inside of the mounting hole 101, and the circumference of the end of the rotating ring 322 forms a separation area 326 outside the first limiting portion 325. When the rotating ring 322 is rotatably connected to the mounting hole 101, the first limiting portion 325 is located in the separation area 326 to limit the rotation angle of the rotating ring 322. In this embodiment, the first limiting portion 325 includes two convex strips arranged at intervals, and the two convex strips divide the circumference of the end of the rotating ring into a closed area with a central angle of 90 degrees and a separation area with a central angle of 270 degrees, so that the rotating ring 322 has a rotation range of 270 degrees in the mounting hole 101.

[0050] As a simple replacement for the above solution, the first limiting portion is a single convex strip, and two ends of the convex strip form a separation area on the circumference of the rotating ring.

[0051] In order to ensure the adjustment capability of the night light, one embodiment of the present invention provides a night light adapter, in which the axis of the lamp holder 18 intersects with the rotation axis of the USB plug assembly 3. Figure 1 In the example shown, the axis of the lamp holder 18 is perpendicular to the rotation axis of the USB plug assembly 3. A threaded hole 19 is provided inside the lamp holder 18, and the axis of the lamp holder 18 corresponds to the axis of the night light.

[0052] As a simple replacement for the above solution, the angle between the axis of the lamp holder 18 and the rotation axis of the USB plug assembly 3 is 120 degrees, 135 degrees, etc.

[0053] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modification that does not deviate from the functional and structural principles of the present invention shall be included in the scope of the claims.

Claims

1. A night light adapter, characterized in that: It includes a shell and a USB plug assembly rotatably set on the shell, the shell includes a lamp holder for detachably setting a night light, the USB plug assembly is electrically connected to the lamp holder, the USB plug assembly is plugged into an external power supply to power the night light, and the shell is provided with a control switch for controlling the on-off of the circuit between the USB plug assembly and the lamp holder.

2. A night light adapter according to claim 1, characterized in that: The USB plug assembly includes a USB plug body and a rotating seat. The USB plug body is used to be electrically connected to an external power source. The rotating seat includes a seat body used to be connected to the USB plug body and a rotating ring rotatably connected to the shell. A mounting hole is provided on the shell. The rotating ring is inserted into the mounting hole and is rotatably connected to the mounting hole.

3. A night light adapter according to claim 2, characterized in that: The rotating ring is provided with a coaxial snap ring groove, the mounting hole is provided with a snap convex portion, the rotating ring extends into the mounting hole and the snap groove is snapped with the snap convex portion to limit the axial movement of the rotating ring relative to the mounting hole.

4. A night light adapter according to claim 3, characterized in that: A limiting groove is arranged on the clamping protrusion, and a positioning protrusion for matching the limiting groove is arranged in the clamping groove.

5. A night light adapter according to claim 4, characterized in that: The clamping protrusion includes four clamping ribs arranged in a circular array around the axis of the mounting hole on the hole wall of the mounting hole, and the middle positions of the four clamping ribs are all provided with limiting grooves, and the positioning protrusion includes clamping columns symmetrically arranged on both sides of the axis of the clamping groove.

6. A night light adapter according to claim 5, characterized in that: The shape of the clamping column is semi-cylindrical, and both ends of the clamping convex rib are provided with guiding arc surfaces for facilitating the clamping column to be clamped in.

7. A night light adapter according to claim 2, characterized in that: The rotating ring and the mounting hole are respectively provided with a first limiting portion and a second limiting portion, and the first limiting portion and the second limiting portion can contact and abut against each other during the relative rotation of the housing and the USB plug assembly to limit the rotation angle of the USB plug assembly.

8. A night light adapter according to claim 7, characterized in that: The first limiting portion is protruding outward from the end of the rotating ring, the second limiting portion and the hole wall at the bottom of the mounting hole are protruding toward the inside of the mounting hole, and the circumference of the end of the rotating ring forms a separation area on the outside of the first limiting portion. When the rotating ring is rotatably connected to the mounting hole, the first limiting portion is located in the separation area to limit the rotation angle of the rotating ring.

9. A night light adapter according to any one of claims 1 to 8, characterized in that: The axis of the lamp holder is arranged to intersect with the rotation axis of the USB plug assembly.

10. A night light adapter according to any one of claims 1 to 8, characterized in that: A fixing collar is sleeved on the outer periphery of the lamp holder, and the fixing collar is used for limiting the decorative plate sleeved on the lamp holder.

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