Projection night lamp

Abstract

The utility model discloses a projection night lamp, which comprises a mounting seat provided with an accommodating groove; the rotating seat is contained in the containing groove, the rotating seat comprises a base ring and a gear ring arranged around the base ring, an up-down through opening is formed in the base ring, a gap is formed between the base ring and the bottom wall of the containing groove, the mounting seat abuts against the rotating seat through at least one abutting part, and the abutting parts are contained in the containing groove; the light source is upwards exposed on the rotating seat and is connected with the mounting seat; and the cover body is fixedly connected with the rotating seat and covers the upper part of the light source. On the basis of stable contact between the mounting base and the rotating base and stable rotation of the rotating base relative to the mounting base, the gear ring is prevented from making contact with the bottom wall of the containing groove, the contact area of the rotating base and the mounting base is reduced, the rotation resistance of the rotating base relative to the mounting base is reduced, the service life of the driving element is prolonged, and the part cost is saved.

Description

Technical Field

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

[0002] An existing projection night light includes a base, a rotating base installed on the base, a motor, a light source, a cover body installed on the rotating base, and a film arranged inside the cover body. The base is provided with a receiving groove, the rotating base is arranged in the receiving groove, the rotating base is provided with a groove running through the upper and lower surfaces thereof, a ring portion surrounded by the groove, and a gear ring located outside the ring portion. The rotating base is matched by the gear and the gear ring of the motor, and then the rotating base rotates. The inner wall of the ring portion is provided with a buckling portion that buckles with the upper and lower parts of the base, and the gear ring contacts the bottom wall of the receiving groove.

[0003] Since the entire lower surface of the gear ring is in contact with the bottom wall of the accommodating groove, the contact area is large, and the rotation resistance of the rotating seat is large. In addition, the motor is affected by the gravity of the rotating seat itself and all components arranged on the rotating seat, which increases the resistance of the motor to drive the rotating seat to rotate, resulting in uneven rotation of the motor and even serious wear of the internal parts of the motor, so that the projection night light cannot work normally. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a projection night light which can reduce the rotation resistance of the rotating disk and increase the service life of the driving element on the basis of ensuring that the rotating seat can rotate stably relative to the mounting seat.

[0005] To achieve the above-mentioned purpose, the utility model provides a projection night light, a mounting seat, which is provided with a receiving groove; a rotating seat, which is received in the receiving groove, the rotating seat includes a base ring, a gear ring arranged around the base ring, an opening through the base ring is formed inside, a gap is formed between the gear ring and the bottom wall of the receiving groove, the mounting seat and the rotating seat are abutted by at least one abutment portion, and the abutment portion is received in the receiving groove; a light source, which is upwardly exposed to the rotating seat and connected to the mounting seat; a cover body, and a projection sheet arranged on the cover body, the cover body is fixedly connected to the rotating seat and covers the top of the light source.

[0006] Furthermore, the abutment portion is formed by protruding from the rotating seat toward the bottom wall of the accommodating groove, or the abutment portion is formed by protruding from the bottom wall of the accommodating groove toward the rotating seat.

[0007] Furthermore, there are at least two abutment portions which are evenly spaced around the base ring.

[0008] Furthermore, the top of the gear ring is higher than the top of the base ring, the rotating seat includes an annular step connecting the top of the base ring and the top of the gear ring, and the abutment portion protrudes upward from the bottom wall of the accommodating groove and abuts against the lower surface of the annular step.

[0009] Furthermore, the abutment portion is located between the base ring and the gear ring, and / or a gap is formed between the base ring and the bottom wall of the accommodating groove.

[0010] Furthermore, the abutment portion is formed by protruding upward from the bottom wall of the accommodating groove, and the abutment portion abuts against the outer wall of the base ring along the horizontal direction.

[0011] Furthermore, the bottom wall of the accommodating groove is provided with a protruding portion protruding toward the mounting seat, the protruding portion is located on the inner side of the abutting portion and extends into the opening, and the light source includes a lamp board, and the lamp board is provided with a positioning hole for the protruding portion to enter.

[0012] Furthermore, it also includes an upper cover arranged on the outside of the cover body, the bottom of the upper cover is provided with a first locking portion, the mounting seat is provided with a first card slot that is snap-fitted with the first locking portion, the first locking portion is an L-shaped card block, the first card slot is an L-shaped card slot, the first card slot is connected to the cavity, and the first locking portion is exposed downward from the cavity of the mounting seat.

[0013] Furthermore, it also includes an anti-scalding structure covering the light source from above, and at least a part of the anti-scalding structure is accommodated in the rotating seat.

[0014] Furthermore, the mounting seat is provided with a first holding portion protruding into the opening, the rotating seat is arranged around the first holding portion, the light source includes a lamp board, the lamp board is provided with a first through hole, the first holding portion passes through the first through hole, and limits the linear movement of the lamp board, and the lamp board prevents the rotating seat from detaching from the mounting seat.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The mounting seat is provided with a receiving groove, and the rotating seat is received in the receiving groove. The rotating seat includes a base ring and a gear ring arranged around the base ring. An opening is formed inside the base ring and is passed through from top to bottom. A gap is formed between the gear ring and the bottom wall of the receiving groove. The mounting seat and the rotating seat are in contact with each other through at least one abutment portion, and the abutment portion is received in the receiving groove. On the basis of ensuring stable contact between the mounting seat and the rotating seat and ensuring stable rotation of the rotating seat relative to the mounting seat, the gear ring is prevented from contacting the bottom wall of the receiving groove, reducing the contact area between the rotating seat and the mounting seat, thereby reducing the resistance of the rotating seat to rotation relative to the mounting seat, thereby increasing the service life of the driving element and saving the cost of parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional exploded schematic diagram of a projection night light according to an embodiment of the utility model;

[0018] Figure 2 is a schematic diagram of the three-dimensional structure of the cover;

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the rotating seat;

[0020] Figure 4 is a schematic diagram of the three-dimensional structure of the rotating seat from another angle;

[0021] Figure 5 It is a three-dimensional structural schematic diagram of a light source and an anti-scalding structure;

[0022] Figure 6 A top view of the cover body, rotating seat, light source and anti-scalding structure;

[0023] Figure 7 for Figure 6 Section view along AA direction;

[0024] Figure 8 for Figure 7 A schematic diagram of the enlarged structure of the middle B part;

[0025] Fig. 9 for Figure 6 Sectional view along CC direction;

[0026] Fig.10 for Fig. 9 Schematic diagram of the enlarged structure of part D in the middle.

[0027] In the accompanying drawings: mounting seat 1; base 1a; cover body 1b; accommodating groove 11; through hole 12; abutting portion 13; second buckling portion 14; arm portion 141; stop portion 142; giving way groove 143; first buckling portion 15; protruding portion 16; first convex portion 161; second convex portion 162; accommodating hole 17; first clamping groove 18; rotating seat 2; opening 21; base ring 22; step portion 23; gear ring 24; annular step 25; accommodating groove 251; second clamping groove 26; light source 3; lamp board 31; lamp bead 32; first positioning hole 33; first through hole 34; cover body 4; second locking portion 411; slide 5; driving element 6; main board 7; power supply 8; anti-scalding structure 9; third through hole 91; second through hole 92; second positioning hole 93; upper cover 10, first locking portion 101; cavity 111. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] In this article, the terms "upper, lower, inside, outside" and the like are established based on the positional relationships shown in the drawings. The corresponding positional relationships may also change depending on the drawings, and therefore cannot be understood as absolute limitations on the scope of protection; moreover, relational terms such as "first" and "second" and the like are merely used to distinguish one component from another with the same name, and do not necessarily require or imply any actual relationship or order between these components.

[0030] like Figure 1-Figure 10 As shown, the projection night light of the utility model comprises a mounting base 1, a light source 3 fixed to the mounting base 1, a rotating base 2 movably mounted on the mounting base 1, a cover body 4 fixed to the rotating base 2 and covering the light source 3, a projection film 5 arranged on the cover body 4, a driving element 6 for driving the rotating base 2 to rotate relative to the mounting base 1, a main board 7 and a power source 8 accommodated in the mounting base 1, and an upper cover 10 buckled on the mounting base 1, wherein the power source 8 and the driving element 6 are electrically connected to the main board 7.

[0031] like Figure 2-4 and Figure 7-8 As shown, the mounting seat 1 is provided with a receiving groove 11, and the rotating seat 2 is received in the receiving groove 11. The rotating seat 2 includes a base ring 22 and a gear ring 24 arranged around the base ring 22. An opening 11 is formed inside the base ring 22 and passes through from top to bottom. A gap is formed between the base ring 22 and the bottom wall of the receiving groove 11. The mounting seat 1 and the rotating seat 2 are in contact with each other through at least one abutment portion 13, and the abutment portion 13 is received in the receiving groove 11. The abutment portion 13 makes the mounting seat 1 abut against the rotating seat 2, so that the contact between the mounting seat 1 and the rotating seat 2 is stable, and on the basis of ensuring the stable rotation of the rotating seat relative to the mounting seat 1, a gap is formed between the gear ring 24 and the bottom wall of the receiving groove 11, so as to avoid the gear ring 24 from contacting the bottom wall of the receiving groove 11, reduce the contact area between the rotating seat 2 and the mounting seat 1, and further reduce the resistance of the rotating seat 2 to the rotation of the mounting seat 1, thereby increasing the service life of the driving element 6 and saving the cost of parts.

[0032] The abutment portion 13 is formed by protruding from the outer wall of the rotating seat 2 toward the bottom wall of the receiving groove 11, or the abutment portion 13 is formed by protruding from the bottom wall of the receiving groove 11 toward the rotating seat 2, or the abutment portion 13 is divided into a first sub-abutment portion and a second sub-abutment portion, and the rotating seat 2 and the bottom wall of the receiving groove 11 are respectively provided with a first sub-abutment portion and a second sub-abutment portion at corresponding positions along the up and down directions, and the bottom of the first sub-abutment portion contacts the top of the second sub-abutment portion. In addition, the abutment portion 13 can be located on the side of the gear ring 24 away from the base ring 22, or between the gear ring 24 and the base ring 22, or on the inner side of the base ring 22. The specific setting position of the abutment portion 13 is selected according to actual needs. Figure 2 , 8As shown, in the present embodiment, the abutment portion 13 is formed by protruding from the bottom wall of the accommodating groove 11 toward the rotating seat 2, and the abutment portion 13 is located between the gear ring 24 and the base ring 22 in the horizontal direction. A gap is formed between the base ring 22 and the bottom wall of the accommodating groove 11, thereby further reducing the contact area between the rotating seat and the mounting seat, thereby reducing the resistance to the rotation of the rotating seat 2 relative to the mounting seat 1.

[0033] like Figure 2 and 8 As shown in the figure, in the embodiment, on the basis of realizing that the mounting seat 1 stably supports the rotating seat 2, the contact area between the two is reduced. Preferably, there are at least two abutting portions 13 and they are evenly spaced around the base ring 22. The abutting portions 13 can all be provided on the mounting seat 1 or the rotating seat 2, or the abutting portions 13 are provided on both the mounting seat 1 and the rotating seat 2. In other embodiments, a plurality of abutting portions 13 are evenly spaced around the base ring 22; or, the abutting portions 13 can be an integral annular structure (not shown), and the abutting portions 13 can be provided on the bottom wall of the accommodating groove 11 and / or the outer wall of the rotating seat 2. Alternatively, the abutment portion 13 may be disposed on the outer wall of the rotating seat 2, and all positions of the lower surface of the abutment portion 13 may contact the bottom wall of the accommodating groove 11, or only part of the lower surface of the abutment portion 13 may contact the bottom wall of the accommodating groove 11. Similarly, the abutment portion 13 may be disposed on the bottom wall of the accommodating groove 11, and all positions of the upper surface of the abutment portion 13 may contact the outer wall of the rotating seat 2, or only part of the upper surface of the abutment portion 13 may contact the outer wall of the rotating seat 2. The abutment portion 13 is a convex bulge, a strip-shaped protrusion, or a columnar structure. The structures of multiple abutment portions 13 may be exactly the same, that is, they may all be convex bulges, strip-shaped protrusions, or columnar structures. Of course, they may also be a combination of two of the three, or they may include all three. The specific selection is based on actual needs. Figure 2 , 8 As shown, in the present embodiment, the abutment portion 13 is a columnar structure. Preferably, in order to further reduce the contact area between the mounting seat 1 and the rotating seat 2, the abutment portion 13 includes a connecting end and a free end. The connecting end of the abutment portion 13 is connected to the outer wall of the rotating seat 2 or the bottom wall of the annular accommodating groove 11, and the free end of the abutment portion 13 is an arc surface.

[0034] like Figure 1-2As shown, the mounting base 1 includes a base 1a and a cover 1b buckled on the base 1a, the base 1a and the cover 1b form a cavity 111, and the mainboard 7, the power supply 8 and the driving element 6 are partially accommodated in the cavity 111. The accommodating groove 11 is provided on the cover 1b, and the cover 1b is recessed downward from its upper surface to form the accommodating groove 11 and a through hole 12 and an accommodating hole 17 that penetrate the cover 1b from top to bottom. The through hole 12 and the accommodating hole 17 both penetrate the bottom wall of the accommodating groove 11 from top to bottom, and the through hole 12 and the accommodating hole 17 are arranged at intervals, the central axis of the through hole 12 and the central axis of the accommodating groove 11 coincide, the diameter of the through hole 12 is smaller than the diameter of the accommodating groove 11, and the through hole 12 is connected to the cavity 111.

[0035] like Figure 7-10 As shown, the rotating seat 2 is arranged in the receiving groove 11, the top surface of the rotating seat 2 is not higher than the top surface of the mounting seat 1, the top of the gear ring 24 is higher than the top of the base ring 22, the rotating seat 2 includes an annular step 25 connecting the top of the base ring 22 and the top of the gear ring 24, the abutment portion 13 is formed by protruding upward from the bottom wall of the receiving groove 11 and abutting against the lower surface of the annular step 25. The inside of the annular step 25 forms a receiving groove 251 connected to the opening 11 in the upper and lower directions, and the diameter of the receiving groove 251 is larger than the diameter of the opening 11. The bottom of the inner wall of the base ring 22 forms a step portion 23 toward the central axis of the rotating seat 2, the opening 11 is connected to the through hole 12 and the two are aligned in the upper and lower directions, and the diameter of the opening 11 is larger than the diameter of the through hole 12.

[0036] like Figure 2 , 9 -10, the bottom wall of the accommodating groove 11 extends upward to form a plurality of second buckling portions 14 and a plurality of first buckling portions 15 extending into the opening 11, the plurality of second buckling portions 14 and the plurality of first buckling portions 15 are located on the inner side of the base ring 22 and are equally spaced around the through hole 12, the first buckling portion 15 is located on the inner side of the second buckling portion 14, the second buckling portion 14 and the first buckling portion 15 include an arm portion 141 connected to the bottom wall of the accommodating groove 11 and a stop portion 142 protruding from the top of the arm portion 141 in a horizontal direction, the stop portion 142 of the first buckling portion 15 is located above the stop portion 142 of the second buckling portion 14. The stopper 142 of the second buckling part 14 is protruded toward the side close to the base ring 22, and the bottom wall of the receiving groove 11 is provided with a clearance groove 143 corresponding to the arm 141 of the second buckling part 14. The clearance groove 143 passes through the bottom wall of the receiving groove 11 vertically, and a gap is formed between the stopper 142 of the second buckling part 14 and the step part 23. The stopper 142 of the second buckling part 14 is located above the step part 23 and the two form a stopper match in the vertical direction to prevent the rotating seat 2 from being separated from the mounting seat 1. The arm 141 of the first buckling part 15 is arranged at the edge of the through hole 12, and the stopper 142 of the first buckling part 15 is protruded toward the side away from the base ring 22.

[0037] like Figure 1 As shown, the driving element 6 can be a motor, and the output end of the driving element 6 is connected to a transmission gear 61 protruding into the accommodating groove 11. The transmission gear 61 and the output end of the driving element 6 extend from the accommodating hole 17 and enter the accommodating groove 11. The transmission gear 61 is connected to the output shaft of the motor and cooperates with the ring gear 24 to drive the rotating seat 2 to rotate. The driving element 6 can also be a driving structure that can output rotational motion other than the motor, such as a rotary cylinder or a rotary oil cylinder, etc.

[0038] like Figure 8 As shown, the abutment portion 13 is formed by protruding upward from the bottom wall of the accommodating groove 11. In order to limit the base ring 22 from moving toward the side close to the gear ring 24, the abutment portion 13 abuts against the outer wall of the base ring 22 in the horizontal direction. In order to achieve the abutment between the abutment portion 13 and the base ring 22, the abutment portion 13 may be provided with an abutment protrusion protruding toward the side close to the base ring 22, and the abutment protrusion abuts against the outer wall of the base ring 22. The abutment protrusion may be formed from the inner wall of the abutment portion 13 toward the base ring 24. 2 is formed by a protruding arrangement, or a protruding portion is formed by arching from the middle of the abutting portion 13 toward one side of the base ring 22 and having a concave protruding portion. In addition, the base ring 22 may be provided with an abutting protrusion protruding toward the side close to the abutting portion 13, and the abutting protrusion abuts against the abutting portion 13. The abutting protrusion may be formed by protruding from the outer wall of the base ring 22 toward the abutting portion 13, or a side wall of the base ring 22 is arched toward one side of the base ring 22 and has a concave protruding portion. When the abutting protrusion is provided on the base ring 22, the abutting protrusion may be provided continuously on the base ring 22, or a plurality of abutting protrusions may be provided at intervals on the limiting portion along the extension direction of the outer contour of the base ring 22. The specific arrangement method is selected according to actual needs.

[0039] like Figure 2 , 7 -8, the bottom wall of the accommodating groove 11 is provided with a protruding portion 16 protruding toward the mounting seat 1, the protruding portion 16 is located on the inner side of the abutting portion 13 and extends into the opening 11, and the protruding portion 16 is connected to the light source 3. Preferably, there are at least two protruding portions 16 and they are arranged at equal intervals around the through hole 12, and the protruding portion 16 includes a first protruding portion 161 connected to each other and two or more second protruding portions 162 located on both sides of the first protruding portion 161, the top surface of the first protruding portion 161 is higher than the top surface of the second protruding portion 162, the top of the first protruding portion 161 is connected to the light source 3, and the second protruding portion 162 supports the bottom of the light source 3.

[0040] like Figure 1 , 5, 8, and 10, the light source 3 is electrically connected to the main board 7. The light source 3 is exposed upward from the rotating seat 2 and connected to the mounting seat 1. The light source 3 includes a lamp board 31 and a plurality of lamp beads 32 fixed to the lamp board 31. The lamp board 31 is mounted on the protruding portion 61 and received in the receiving groove 251. The lamp board 31 is located above the bottom wall of the annular step 25 and is not higher than the upper surface of the rotating seat 2. In this embodiment, the lamp board 31 is provided with a plurality of first positioning holes 33 and a plurality of first through holes 34. The positions of the first through holes 34 correspond to the positions of the first buckling portions 15. The first positioning holes 33 are preferably through holes that penetrate the lamp board 31 from top to bottom. The top of the first protrusion 161 enters the first positioning holes 33. Of course, the first positioning holes 33 can also be blind holes. The second protrusion 162 supports the bottom of the lamp board 31 upward. The light emitted by the lamp beads 32 is irradiated on the slide 5, and the pattern on the slide 5 can be seen through the cover 4. In this embodiment, the protruding portion 16 may also be a circular column, and an internal threaded hole (not shown) is formed inside the protruding portion 16 to cooperate with a screw, and the screw passes through the first positioning hole 33 and is screwed to the internal threaded hole of the protruding portion 16, and the nut of the screw stops above the lamp board 31. The lamp board 31 prevents the rotating seat 2 from detaching from the mounting seat 1.

[0041] like Figure 1 , 5As shown in FIGS. 8 and 10 , the projection night light further includes an anti-scalding structure 9 that covers the light source 3 from above. At least a portion of the anti-scalding structure 9 is received in the receiving groove 251 of the rotating seat 2. The anti-scalding structure 9 has an anti-scalding effect on the lamp beads 32. The top surface of the anti-scalding structure 9 is higher than the top surface of the rotating seat 2 or is flush with the top surface of the rotating seat 2. The anti-scalding structure 9 can be a cover body 1b with a bottom opening 11, and the anti-scalding structure 9 wraps the light source 3 inside. The anti-scalding structure 9 is provided with a plurality of third through holes 91, a plurality of second through holes 92 and a plurality of second positioning holes 93 penetrating the upper and lower surfaces thereof. The position of the third through hole 91 corresponds to the position of the lamp bead 32, and the lamp bead 32 is exposed in the third through hole 91. The position of the second through hole 92 corresponds to the position of the first through hole 34 and the position of the first buckling portion 15. The first buckling portion 15 passes through the first through hole 34 and the second through hole 92 to engage with the anti-scalding structure 9. Specifically, the arm portion 141 of the first buckling portion 15 passes through the first through hole 34 and the second through hole 92, and a gap is formed between the stopper 142 of the first buckling portion 15 and the top surface of the anti-scalding structure 9. The stopper 142 of the first buckling portion 15 and the top surface of the anti-scalding structure 9 form a stopper match in the upper and lower directions, thereby preventing the anti-scalding structure 9 and the light source 3 from being separated from the mounting seat 1. The top end of the first convex portion 161 passes through the first positioning hole 33 and enters the second positioning hole 93. In other embodiments, other structures or connection methods other than those described above may be used to fix the anti-scalding structure 9, the light source 3 and the mounting base 1. For example, the above three may be connected and fixed by screw connection or pin connection. Other structures may be studs with internal threaded holes provided on the mounting base 1, screws screwed to the studs, and the screws screwed to the anti-scalding structure 9. The rotating base 2 is arranged around the first buckling portion 15.

[0042] like Figure 1 and Figure 2 As shown, the upper cover 10 is covered on the outer side of the cover body 4, a first locking portion 101 is provided at the bottom of the upper cover 10, a first card slot 18 is provided at the top of the cover body 1b, the first locking portion 101 is an L-shaped card block, and correspondingly, the first card slot 18 is an L-shaped card slot that cooperates with the L-shaped card block, the first locking portion 101 is fixed by snapping with the first card slot 18, so as to prevent the upper cover 10 from being separated from the mounting base 1. In this embodiment, the upper cover 10 is a translucent frosted cover. When the power is on, the slide film 5 is projected onto the ceiling or wall through the upper cover 10. During assembly, first install the power supply 8 and the mainboard 7 on the base 1a, then fix the driving element 6 on the cover 1b or on the base 1a, and fix the cover 1b on the base 1a; then install the rotating base 2 on the cover 1b, then fix the light source 3 and the anti-scalding structure 9 on the cover 1b, then rotate and buckle the second locking portion 411 at the bottom of the cover 4 and the second card slot 26 at the top of the rotating base 2, and finally rotate the upper cover 10 to buckle it on the mounting base 1. The first card slot 18 is connected to the cavity 111, and the first locking portion 101 is exposed downward from the cavity 111 of the mounting base 1.

[0043] The above is a detailed introduction to the projection night light provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A projection night light, characterized in that: include: A mounting seat, which is provided with a receiving groove; A rotating seat is received in the receiving groove, the rotating seat comprises a base ring and a gear ring arranged around the base ring, an opening is formed inside the base ring and passes through the base ring, a gap is formed between the gear ring and the bottom wall of the receiving groove, the mounting seat is in contact with the rotating seat through at least one abutting portion, and the abutting portion is received in the receiving groove; A light source, exposed upward from the rotating seat and connected to the mounting seat; A cover body and a slide sheet arranged on the cover body, wherein the cover body is fixedly connected to the rotating seat and covers the top of the light source.

2. The projection night light according to claim 1, characterized in that: The abutment portion is formed by protruding from the rotating seat toward the bottom wall of the accommodating groove, or the abutment portion is formed by protruding from the bottom wall of the accommodating groove toward the rotating seat.

3. The projection night light according to claim 1, characterized in that: There are at least two abutting portions which are evenly spaced around the base ring.

4. The projection night light according to claim 1, characterized in that: The top of the gear ring is higher than the top of the base ring, the rotating seat includes an annular step connecting the top of the base ring and the top of the gear ring, and the abutment portion protrudes upward from the bottom wall of the accommodating groove and abuts against the lower surface of the annular step.

5. The projection night light according to claim 1, characterized in that: The abutment portion is located between the base ring and the gear ring; And / or, a gap is formed between the base ring and the bottom wall of the accommodating groove.

6. The projection night light according to claim 1, characterized in that: The abutment portion is formed to protrude upward from the bottom wall of the accommodating groove, and the abutment portion abuts against the outer wall of the base ring along a horizontal direction.

7. The projection night light according to claim 1, characterized in that: The bottom wall of the accommodating groove is provided with a protruding portion protruding toward the mounting seat, the protruding portion is located on the inner side of the abutting portion and extends into the opening, and the light source includes a lamp board, and the lamp board is provided with a positioning hole for the protruding portion to enter.

8. The projection night light according to any one of claims 1 to 7, characterized in that: It also includes an upper cover arranged on the outside of the cover body, a first locking portion is provided at the bottom of the upper cover, the mounting seat is provided with a first card slot that is snap-fitted with the first locking portion, the first locking portion is an L-shaped card block, the first card slot is an L-shaped card slot, the mounting seat includes a base and a cover body snapped on the base, the base and the cover body form a cavity, the first card slot is connected to the cavity, and the first locking portion is exposed downward from the cavity of the mounting seat.

9. The projection night light according to any one of claims 1 to 7, characterized in that: It also includes an anti-scalding structure that covers the light source from above, and at least a part of the anti-scalding structure is accommodated in the rotating seat.

10. The projection night light according to any one of claims 1 to 7, characterized in that: The mounting seat is provided with a first holding portion protruding into the opening, the rotating seat is arranged around the first holding portion, the light source includes a lamp board, the lamp board is provided with a first through hole, the first holding portion passes through the first through hole, restricting the lamp board from moving upward, and the lamp board prevents the rotating seat from detaching from the mounting seat.

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