CN115523445A - Leak protection ceiling light - Google Patents

Abstract

The embodiment of the invention discloses a leakage-proof ceiling lamp, which comprises a lamp body component, a front ring and an anti-dazzle piece, wherein the front ring is annular, and one end of the lamp body component is fixedly connected with the front ring; the anti-dazzle piece comprises a connecting ring and an anti-dazzle ring which are coaxially arranged, the anti-dazzle ring is fixedly arranged at one end of the connecting ring and is provided with an inner notch and an outer notch, the front ring is at least partially embedded in the connecting ring, and the peripheral side wall of the front ring is abutted against the inner side wall of the connecting ring; the front ring is rotationally connected with the connecting ring, and the rotation axis of the front ring is vertical to the geometric center line of the connecting ring, so that the front ring can rotate within a preset range; at least part of the peripheral side of the front ring is provided with a circular arc surface which is used for always abutting against the inner side wall of the connecting ring when the front ring rotates so as to prevent light from overflowing. According to the embodiment of the invention, the situation that light accidentally overflows when the angle between the lamp body assembly and the connecting ring is adjusted is avoided, namely the ceiling lamp can effectively avoid the light leakage phenomenon.

Description

Leak protection ceiling light

Technical Field

The invention relates to the field of lighting devices, in particular to a leakage-proof ceiling lamp.

Background

The ceiling lamp is a high-grade lighting and modern decorative lamp, can be installed on a ceiling in an embedded mode, can be additionally provided with an installation support or a track to be used as a light-transmitting lamp or a spotlight, or can be additionally provided with a hanging rod or a steel cable to be used as a ceiling lamp.

Along with the increase of application scenes, the ceiling lamp is designed to be adjustable, namely, the lamp body can vertically rotate relative to a face ring for supporting the ceiling lamp, so that light emitted by the lamp body irradiates on a corresponding area, but after the face ring opposite to the lamp body relatively rotates, a gap between the lamp body and the face ring can be enlarged, and the light leakage phenomenon is further caused.

Disclosure of Invention

The invention aims to provide a leakage-proof ceiling lamp, and aims to solve the problem that the conventional ceiling lamp leaks light after the angle of a lamp body is adjusted.

In order to solve the technical problems, the invention aims to realize the following technical scheme: a leak resistant ceiling light is provided comprising:

a lamp body assembly;

the front ring is annular, and one end of the lamp body assembly is fixedly connected with the front ring;

the anti-dazzle device comprises a connecting ring and an anti-dazzle ring which are coaxially arranged, wherein the anti-dazzle ring is fixedly arranged at one end of the connecting ring and is provided with an inner notch and an outer notch, at least part of the front ring is embedded in the connecting ring, and the peripheral side wall of the front ring is abutted against the inner side wall of the connecting ring;

the front ring is rotatably connected to the connecting ring, and the rotation axis of the front ring is perpendicular to the geometric center line of the connecting ring, so that the front ring can rotate within a preset range;

at least part of the peripheral side of the front ring is provided with an arc surface which is used for always abutting against the inner side wall of the connecting ring when the front ring rotates so as to prevent light from overflowing.

Further, an arc-shaped notch is formed in the other side of the free end of the front ring and used for enabling part of the anti-dazzle ring to be embedded when the front ring rotates.

Further, the shading angle of the anti-dazzle ring is 30-45 degrees, and the ratio of the distance between the outer notch and the light-transmitting end face of the lamp body component to the diameter of the outer notch is larger than 0.45.

Furthermore, the shading angle is 31 degrees, the distance between the outer notch and the light-transmitting end face of the lamp body assembly is 27 millimeters, and the diameter of the outer notch is 59 millimeters.

Further, a gap is formed between the arc axis of the arc surface and the rotation axis of the front ring, and the distance between the arc axis of the arc surface and the lamp body assembly is smaller than the distance between the rotation axis of the front ring and the lamp body assembly.

Further, the clearance between the circular arc axis of circular arc surface and the axis of rotation of preceding ring is less than or equal to 0.8 millimeter, 2 circular arc endpoints of circular arc surface with the circular arc contained angle between the circular arc axis is less than or equal to 21 degrees.

Further, still including the face lid that is provided with the limit spring, the face lid cover is located the periphery of go-between, and pass through limit spring and outside installed part joint, lamp body component pass through the connecting piece with the face lid rotates to be connected.

Furthermore, an adjusting column coinciding with the rotation axis is fixedly arranged on the outer peripheral side of the lamp body assembly, a guide groove for the adjusting column to penetrate through is formed in the connecting ring, and the connecting piece is connected with the surface cover and the adjusting column respectively.

Further, the lamp body assembly includes:

the lamp shell is provided with an accommodating cavity with one open end;

the light source part is fixedly arranged in the accommodating cavity;

and the lens is fixedly arranged in the accommodating cavity and is used for allowing the light rays emitted by the light source part to pass through.

Further, the angle of the lens is 15 degrees, 24 degrees, 36 degrees or 60 degrees.

The embodiment of the invention provides a leakage-proof ceiling lamp which comprises a lamp body assembly, a front ring and an anti-dazzle piece, wherein the front ring is annular, and one end of the lamp body assembly is fixedly connected with the front ring; the anti-dazzle piece comprises a connecting ring and an anti-dazzle ring which are coaxially arranged, the anti-dazzle ring is fixedly arranged at one end of the connecting ring and is provided with an inner notch and an outer notch, the front ring is at least partially embedded in the connecting ring, and the peripheral side wall of the front ring is abutted against the inner side wall of the connecting ring; the front ring is rotatably connected to the connecting ring, and the rotation axis of the front ring is perpendicular to the geometric center line of the connecting ring, so that the front ring can rotate within a preset range; at least part of the peripheral side of the front ring is provided with an arc surface which is used for always abutting against the inner side wall of the connecting ring when the front ring rotates so as to prevent light from overflowing. According to the embodiment of the invention, the situation that light accidentally overflows when the angle between the lamp body assembly and the connecting ring is adjusted is avoided, namely the ceiling lamp can effectively avoid the light leakage phenomenon.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of a leakproof ceiling light provided by an embodiment of the invention in an upright state;

FIG. 2 is a schematic structural view of a leakproof ceiling lamp provided by an embodiment of the present invention in an adjusted state;

FIG. 3 is an exploded view of a leak proof ceiling light provided by an embodiment of the present invention;

FIG. 4 is a cross-sectional view of a leak resistant ceiling light provided by an embodiment of the present invention at a first viewing angle;

FIG. 5 is a cross-sectional view of a leak resistant ceiling light provided by an embodiment of the present invention at a second viewing angle;

FIG. 6 is a schematic structural view of a leakage-proof ceiling lamp according to an embodiment of the present invention after the lamp body assembly and the front ring are installed;

FIG. 7 is a schematic structural view of an antiglare member in a leak-proof ceiling lamp according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a top cover of a leak-proof ceiling lamp according to an embodiment of the present invention.

The labels in the figures illustrate:

1. a lamp body assembly; 11. a lamp housing; 12. a light source element; 13. a lens; 14. a power supply module; 141. a circuit board; 142. an input line; 143. an output line; 15. a light source; 16. a light source holder; 161. a light-transmitting hole; 17. a heat dissipating ring; 2. a front ring; 21. a rotational axis; 22. a circular arc surface; 23. an arc-shaped notch; 24. a circular arc axis; 25. a convex ring; 26. embedding a ring groove; 3. an anti-glare member; 31. a connecting ring; 32. an anti-glare ring; 33. an inner notch; 34. an outer notch; 35. a guide groove; 4. a shading angle; 5. arc included angles; 6. an edge spring; 61. a face cover; 7. a connecting member; 8. an adjustment column; 9. a first edge line; 91. a second edge line.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

With reference to fig. 1 to 8, an embodiment of the present invention provides a leak-proof ceiling lamp, including:

a lamp body assembly 1;

the lamp body component comprises a front ring 2, wherein the front ring 2 is annular, and one end of the lamp body component 1 is fixedly connected with the front ring 2;

the anti-dazzle piece 3 comprises a connecting ring 31 and an anti-dazzle ring 32 which are coaxially arranged, the anti-dazzle ring 32 is fixedly arranged at one end of the connecting ring 31 and is provided with an inner notch 33 and an outer notch 34, the front ring 2 is at least partially embedded in the connecting ring 31, and the peripheral side wall of the front ring 2 is abutted against the inner side wall of the connecting ring 31;

wherein, the front ring 2 is rotatably connected to the connecting ring 31, and the rotation axis 21 of the front ring 2 is perpendicular to the geometric center line of the connecting ring 31, so that the front ring 2 can rotate within a preset range;

at least a part of the outer circumference of the front ring 2 is formed with a circular arc surface 22 for always abutting against the inner side wall of the connection ring 31 when the front ring 2 rotates, so as to prevent light from overflowing.

With reference to fig. 3, fig. 4 and fig. 5, in this embodiment, the lamp body assembly 1 is used for emitting light, thereby illuminating a part of the area, wherein the front ring 2 is annular, and the periphery of one end of the front ring 2, which is far away from the anti-glare ring 32, is provided with an embedded annular groove 26, the opening of the lamp body 11 in the lamp body assembly 1 is embedded into the embedded annular groove 26, so that the outer peripheral side of the front ring 2 and the outer peripheral side of the lamp body 11 maintain the overall aesthetic property, and meanwhile, the lamp body 11 can be fixedly connected with the front ring 2 in a clamping manner, so that when the angle of the lamp body assembly 1 is adjusted, the front ring 2 and the lamp body assembly 1 rotate synchronously.

In this embodiment, the connection ring 31 is annular, and the outer peripheral side of the front ring 2 is located to the one end opening cover that the connection ring 31 deviates from the anti-glare ring 32, wherein, the anti-glare ring 32 can be connected with the connection ring 31 through integrated into one piece, in this embodiment, the anti-glare ring 32 is set inwards and in a contracted state, specifically, the inner notch 33 of the anti-glare ring 32 is located inside the connection ring 31, the outer notch 34 of the anti-glare ring 32, that is, the connection ring 31 deviates from the one end opening of the lamp body assembly 1, the aperture of the inner notch 33 is smaller than that of the outer notch 34, that is, the light emitted by the lamp body assembly 1 can loop through the inside of the front ring 2, the inside of the connection ring 31, the inner notch 33 is shot out through the outer notch 34.

In order to be suitable for different lighting application scenarios, the front ring 2 is rotatably connected to the connection ring 31, i.e. the lamp body assembly 1 can be relatively rotated to the connection ring 31, so that the range of light passing through the inner slot opening 33 is changed, wherein, for the convenience of understanding, referring to fig. 1 and 2, the present application designates the state of the ceiling lamp when the lamp body assembly 1, the front ring 2 and the connection ring 31 are in the coaxial position as the upright state, in which the light emitted from the lamp body assembly 1 is emitted from the outer slot opening 34 in a uniform illumination state, and designates the state of the ceiling lamp as the adjustment state when the lamp body assembly 1, the front ring 2 and the connection ring 31 are relatively rotated, i.e. the extending axes of the lamp body assembly 1 and the front ring 2 and the geometric center line of the connection ring 31 are at a rotational angle, in which the light emitted from the lamp body assembly 1 is emitted from the outer slot opening 34 in a non-uniform illumination state.

With reference to fig. 3 and 4, in order to avoid the process that the ceiling lamp is in the adjusting state or the ceiling lamp rotates from the upright state to the adjusting state, light is emitted through the gap between the front ring 2 and the connection ring 31, and the light leakage phenomenon is caused, in the present application, at least a part of the outer peripheral side of the front ring 2 is set as the arc surface 22, specifically, the rotation axis 21 of the front ring 2 is used as a boundary line, the front ring 2 is divided into a left half part and a right half part, wherein the arc surface 22 is integrally formed on the outer peripheral side of the left half part, so that the ceiling lamp is in the adjusting state or the ceiling lamp rotates from the upright state to the adjusting state, the arc surface 22 always collides with the inner side wall of the connection ring 31, thereby avoiding the light leakage phenomenon and reducing the light loss.

It should be understood that, since the left half portion is tilted away from the antiglare ring 32 and the right half portion is moved closer to the antiglare ring 32, in order to avoid the right half portion interfering with the antiglare ring 32, the front ring 2 and the right half portion have a gap between them in the upright state and the antiglare ring 32, and the application does not adjust the size of the gap between the front ring 2 and the antiglare ring 32 in the upright state, and the gap is also adjusted according to the size of the rotation angle of the front ring 2 and the lamp body assembly 1.

It should be noted that "left" and "right" in the present application are not narrowly defined as "left" and "right", and thus, are not described again.

Referring to fig. 3, 4 and 6, in an embodiment, the lamp body assembly 1 includes:

a lamp housing 11, wherein the lamp housing 11 is provided with an accommodating cavity with one open end;

the light source part 12, the light source part 12 is fixedly arranged in the accommodating cavity;

and the lens 13 is fixedly arranged in the accommodating cavity and is used for allowing the light rays emitted by the light source component 12 to pass through.

In this embodiment, the lamp housing 11 may be configured to be a barrel shape, a circular truncated cone shape, or other shapes, which is not specifically limited in this application; the light source 12 includes a power module 14 and a light source 15 electrically connected to the power module 14, wherein the type of the light source 15 includes, but is not limited to, a COB light source 15, the light source 15 is mounted on one side of the power module 14 facing the front ring 2 through a light source bracket 16 having a light hole 161, and meanwhile, the power module 14 includes a circuit board 141, an input line 142 and an output line 143, wherein the circuit board 141 can be fixed on the inner side wall of the lamp housing 11 by bolting, one end of the input line 142 is electrically connected to the circuit board 141, the other end of the input line passes through the lamp housing 11 and then is connected to an external power source, one end of the output line 143 is electrically connected to the circuit board 141, and the other end is electrically connected to the light source 15, for controlling the light source 15 to be turned on or turned off.

In the present embodiment, the lens 13, the light source 15 and the lamp housing 11 are coaxially arranged, so that the light emitted by the light source 15 can be completely emitted through the lens 13, wherein the lens 13 of the present application can be fixedly connected with the light source support 16 by bolting, the lens 13 is located on one side of the light source support 16 facing the front ring 2, and the inner side of one end of the front ring 2 facing away from the antiglare ring 32 is provided with a convex ring 25 for supporting the lens 13.

In this embodiment, the heat dissipation ring 17 is fixedly disposed inside the lamp housing 11, and the lens 13 is located inside the heat dissipation ring 17, so that the heat dissipation ring 17 can dissipate heat of the lens 13, wherein the heat dissipation ring 17 can be made of metal with a better heat dissipation effect, and this application is not specifically limited.

In a specific embodiment, the angle of the lens 13 is 15 degrees, 24 degrees, 36 degrees or 60 degrees.

In this embodiment, different scene lighting requirements can be satisfied by selecting the angle of the lens 13 in a plurality of ways, where the angle of the lens 13 refers to the size of the light-emitting range after the light source 15 is turned on, i.e., the beam angle. It should be understood that the angle of the lens may be other, and the present application does not make much explanation.

With reference to fig. 3 and 6, in a specific embodiment, an arc notch 23 is provided on the other side of the free end of the front ring 2, for partially embedding the antiglare ring 32 when the front ring 2 rotates.

In this embodiment, the arc notch 23 is disposed on the right half portion to reduce the gap between the front ring 2 and the anti-glare ring 32 in the upright state, so as to improve the structural compactness of the ceiling lamp, specifically, in the process of rotating the ceiling lamp from the upright state to the adjustment state, the right half portion is drawn toward the anti-glare ring 32, in other words, the anti-glare ring 32 is embedded in the arc notch 23, and after the lamp body assembly 1 rotates to the maximum rotation angle, the bottom wall of the arc notch 23 can abut against one side of the anti-glare ring 32 facing the lamp body assembly 1, so as to reduce the situation that all gravity is applied to the rotation position of the lamp body assembly 1, which is beneficial to improving the adjustment state of the ceiling lamp at the maximum rotation angle.

In a specific embodiment, the shading angle 4 of the antiglare ring 32 is 30 degrees to 45 degrees, and the ratio of the distance between the outer notch 34 and the light-transmitting end face of the lamp body assembly 1 to the diameter of the outer notch 34 is greater than 0.45.

In the present embodiment, for convenience of understanding, in the standing state of the ceiling lamp, one point of the edge of the light-transmitting end surface of the lens 13 is named point a, the point symmetrical to point a is point B, 2 points on the edge of the outer notch 34 on the plane where the point a, the point B and the rotation axis 21 are named point C and point E, that is, point C and point E are symmetrically arranged, then the point a and the point E are connected to form the first edge line 9, the point B and the point C are connected to form the second edge line 91, the first edge line 9 and the second edge line 91 intersect between the inner notch 33 and the port of the front ring 2 and extend outward sequentially through the inner notch 33 and the outer notch 34, wherein the angle between the radial straight lines of the first edge line 9 and the outer notch 34 is the shading angle 4 of the anti-glare ring 32, meanwhile, the length of the radial straight lines of the light-transmitting end surface of the lens 13 and the outer notch 34 is named L, the diameter length of the outer notch 34 is named D, and the effective light-glare ratio of the light-emitting angle of the ceiling lamp is set to be less than 0.45, and the light-emitting range of the ceiling lamp can be avoided by setting the light-emitting angle of the light emitting range of the light of the ceiling lamp, which is equal to 0.

In a specific embodiment, referring to fig. 3 and 4, the light shielding angle 4 is 31 degrees, the distance between the outer notch 34 and the light-transmitting end surface of the lamp body assembly 1 is 27 mm, and the diameter of the outer notch 34 is 59 mm.

Because shading angle 4 is big more, can correspondingly reduce the light-emitting efficiency of ceiling lamp, so this application is through the numerical value collocation experiment to the radial straight line's of the printing opacity terminal surface of different lens 13 and outer notch 34 length L and the diameter length D of outer notch 34, finds shading angle 4 at 31 degrees at last, and the printing opacity terminal surface of lens 13 and the radial straight line's of outer notch 34 length L is 27 millimeters, and when the diameter length D of outer notch 34 was 59 millimeters, ceiling lamp's light-emitting effect was best.

In a specific embodiment, referring to fig. 3 and 4, a gap is formed between the arc axis 24 of the arc surface 22 and the rotation axis 21 of the front ring 2, and a distance between the arc axis 24 of the arc surface 22 and the lamp body assembly 1 is smaller than a distance between the rotation axis 21 of the front ring 2 and the lamp body assembly 1.

For the convenience of understanding, in the present application, the arc axis 24 of the arc surface 22 and the rotation axis 21 of the front ring 2 have a gap named as a gap F, in the present embodiment, the arc axis 24 and the rotation axis 21 are not coincident, and the position of the arc axis 24 is closer to the lens 13 relative to the position of the rotation axis 21, by such an arrangement, the arc surface 22 and the inner side wall of the front ring 2 are in closer contact, so as to further improve the light leakage prevention effect of the ceiling lamp.

With reference to fig. 3 and fig. 4, in a specific embodiment, a gap between the arc axis 24 of the arc surface 22 and the rotation axis 21 of the front ring 2 is less than or equal to 0.8 mm, and an arc included angle 5 between each of the 2 arc end points of the arc surface 22 and the arc axis 24 is less than or equal to 21 degrees.

In the present embodiment, according to a plurality of simulation experiments, it is found that the distance between the arc axis 24 and the rotation axis 21 of the ceiling lamp is set in the range of 0-0.8 mm, and the size of the arc included angle 5 is set in the range of 0-21 degrees, which can effectively avoid light leakage, and in a more specific embodiment, the distance between the arc axis 24 and the rotation axis 21 of the ceiling lamp is set in the range of 0.8 mm, and at the same time, the size of the arc included angle 5 is set in the range of 21 degrees.

Referring to fig. 3 and 8, in a specific embodiment, the leakproof ceiling lamp further comprises a surface cover 61 provided with a side spring 6, the surface cover 61 is sleeved on the periphery of the connecting ring 31 and is clamped with an external mounting part through the side spring 6, and the lamp body assembly 1 is rotatably connected with the surface cover 61 through a connecting piece 7.

In this embodiment, face lid 61 is the ring form, and face lid 61 and the coaxial setting of go-between 31, wherein, face lid 61 can be through the mode and the go-between 31 fixed connection of joint, simultaneously, in order to improve ceiling light's whole aesthetic property, the go-between 31 of this application imbeds completely in the face lid 61, and the one end that the go-between 31 deviates from the lamp body flushes with the one end that the face lid 61 deviates from the lamp body.

In this embodiment, the snap springs are fastened to the face cover 61, and 2 snap springs are arranged in the circumferential direction, it should be understood that the number of the snap springs may be other according to the installation requirement, and the application is not particularly limited; wherein, the outside installed part of this application includes but is not limited to ceiling, furred ceiling etc. through the jump ring with ceiling lamp joint on outside installed part, realize ceiling lamp's installation, simple easy operation.

Referring to fig. 3 and 7, in a specific embodiment, an adjusting post 8 coinciding with the rotation axis 21 is fixedly disposed on an outer peripheral side of the lamp body assembly 1, the connecting ring 31 is provided with a guide groove 35 for the adjusting post 8 to penetrate through, and the connecting member 7 is respectively connected to the surface cover 61 and the adjusting post 8.

In this embodiment, adjust post 8 can integrated into one piece in the periphery side of lamp body 11, and adjust post 8 and the equal circumference of guide way 35 and be provided with 2, wherein, guide way 35 is for having open-ended circular arc groove, through such design, be favorable to on adjusting post 8 embedding guide way 35, specifically, the circular arc side of adjusting post 8 can contradict in the cell wall of guide way 35 for adjust post 8 along with the lamp body 11 pivoted in-process, the circular arc side of adjusting post 8 does not have the clearance with guide way 35.

In this embodiment, the connecting member 7 is a screw or a bolt, the connecting member 7 is connected to the face cover 61 through a thread and is inserted into the corresponding adjusting column 8, wherein the geometric center line of the connecting member 7 and the rotation axis 21 of the adjusting column 8 coincide with each other, and the connecting member 7 is used to connect the face cover 61 and the front ring 2, and the lamp body assembly 1 rotates around the connecting member 7.

While the invention has been described with reference to specific embodiments, the invention is not limited thereto, and various equivalent modifications and substitutions can be easily made by those skilled in the art within the technical scope of the invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A leak resistant ceiling light, comprising:

a lamp body assembly (1);

the lamp body component comprises a front ring (2), wherein the front ring (2) is annular, and one end of the lamp body component (1) is fixedly connected with the front ring (2);

the anti-dazzle device (3) comprises a connecting ring (31) and an anti-dazzle ring (32) which are coaxially arranged, wherein the anti-dazzle ring (32) is fixedly arranged at one end of the connecting ring (31) and is provided with an inner notch (33) and an outer notch (34), the front ring (2) is at least partially embedded in the connecting ring (31), and the peripheral side wall of the front ring (2) is abutted against the inner side wall of the connecting ring (31);

wherein the front ring (2) is rotatably connected to the connecting ring (31), and the rotation axis (21) of the front ring (2) is perpendicular to the geometric center line of the connecting ring (31), so that the front ring (2) can rotate within a preset range;

at least part of the outer peripheral side of the front ring (2) is provided with a circular arc surface (22) which is used for always abutting against the inner side wall of the connecting ring (31) when the front ring (2) rotates so as to prevent light from overflowing.

2. The leak resistant ceiling light of claim 1, wherein: the other side of the free end of the front ring (2) is provided with an arc-shaped notch (23) for embedding part of the anti-dazzle ring (32) when the front ring (2) rotates.

3. The leak resistant ceiling light of claim 1, wherein: the shading angle (4) of the anti-dazzle ring (32) is 30-45 degrees, and the ratio of the distance between the outer notch (34) and the light-transmitting end face of the lamp body assembly (1) to the diameter of the outer notch (34) is larger than 0.45.

4. A leak resistant ceiling light as set forth in claim 3, wherein: the shading angle (4) is 31 degrees, the distance between the outer notch (34) and the light-transmitting end face of the lamp body assembly (1) is 27 millimeters, and the diameter of the outer notch (34) is 59 millimeters.

5. The leak resistant ceiling light of claim 3, wherein: a gap is reserved between the arc axis (24) of the arc surface (22) and the rotation axis (21) of the front ring (2), and the distance between the arc axis (24) of the arc surface (22) and the lamp body assembly (1) is smaller than the distance between the rotation axis (21) of the front ring (2) and the lamp body assembly (1).

6. The leak resistant ceiling light of claim 5, wherein: the clearance between circular arc axis (24) of circular arc surface (22) and rotation axis (21) of preceding ring (2) is less than or equal to 0.8 millimeter, 2 circular arc endpoints of circular arc surface (22) with circular arc contained angle (5) between circular arc axis (24) are less than or equal to 21 degrees.

7. The leakproof ceiling lamp according to any one of the claims 1 to 6, further comprising a surface cover (61) provided with a side spring (6), wherein the surface cover (61) is sleeved on the periphery of the connecting ring (31) and clamped with an external mounting part through the side spring (6), and the lamp body assembly (1) is rotatably connected with the surface cover (61) through a connecting piece (7).

8. The leak resistant ceiling light of claim 7, wherein: the adjusting column (8) which is overlapped with the rotating axis (21) is fixedly arranged on the outer peripheral side of the lamp body assembly (1), the connecting ring (31) is provided with a guide groove (35) for the adjusting column (8) to penetrate through, and the connecting piece (7) is respectively connected with the surface cover (61) and the adjusting column (8).

9. The leak resistant ceiling lamp of claim 1, wherein said lamp body assembly (1) comprises:

the lamp shell (11), the lamp shell (11) has an accommodating cavity with one open end;

the light source piece (12), the said light source piece (12) is fixed in the said containing cavity;

and the lens (13) is fixedly arranged in the accommodating cavity and is used for allowing the light rays emitted by the light source component (12) to pass through.

10. The leak resistant ceiling light of claim 9, wherein the angle of said lens (13) is 15 degrees, 24 degrees, 36 degrees or 60 degrees.

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