A lighting fixture external device

Abstract

A lamp external device, characterized in that it includes a mounting bracket assembly installed on the outer edge of the lamp head cover of the lamp, a circular diffuser plate assembly placed in the mounting bracket assembly and magnetically fixed thereto, and a light-blocking leaf assembly installed on the mounting assembly and located above the diffuser plate assembly; the mounting bracket assembly includes a mounting plate, and a limit assembly located on one side of the mounting plate and extending outwardly for preventing the light-blocking leaf assembly from sliding out.

Description

Technical Field

[0001] The utility model mainly relates to the field of stage lamps, in particular to an external device of a lamp. Background Art

[0002] In order to obtain the expected lighting effect or prevent glare, some lamps are equipped with light-blocking blades at the front end. However, the existing light-blocking blades and their fixing frames are designed as a whole, and the fixing frame is usually an inseparable structure; that is, the existing light-blocking device can only install one light-blocking blade assembly, and two external components cannot be installed on the external device at the same time. In addition, this fixing frame can only be fixed to the surface of the lamp by screws, resulting in the screws being directly exposed to the outside, which not only affects the appearance, but also requires the use of a screwdriver during installation and removal, increasing the complexity and inconvenience of maintenance. Summary of the invention

[0003] The utility model provides an external connection device for a lamp, which effectively solves the above-mentioned problem.

[0004] The technical solution adopted by the utility model is:

[0005] A lamp external device includes a mounting bracket assembly installed on the outer edge of a lamp cap of the lamp, a circular diffuser plate assembly placed in the mounting bracket assembly and magnetically fixed thereto, and a light-blocking leaf assembly installed on the mounting assembly and located above the diffuser plate assembly; the mounting bracket assembly includes a mounting plate, and a limiting assembly located on one side of the mounting plate and extending outwardly for preventing the light-blocking leaf assembly from sliding out.

[0006] As a further improvement of the present invention, the circular diffusion plate assembly includes a circular frame, a diffusion sheet located in the circular frame, and a plurality of magnets located on the back of the circular frame.

[0007] As a further improvement of the present invention, the mounting bracket assembly also includes a plurality of first limiting portions with a first height and a plurality of second limiting portions with a second height, which are arranged on the outer edge of the mounting plate and perpendicular to the mounting plate, and the light blocking blade assembly is installed between the first limiting portions and the second limiting portions.

[0008] As a further improvement of the present invention, the first height is greater than the height of the circular diffusion plate assembly.

[0009] As a further improvement of the utility model, the light blocking leaf assembly includes a support frame with a light through hole 1 at the center of the bottom, a light blocking leaf mounting seat with a light through hole 2 at the center rotatably connected to the support frame, and a plurality of light blocking leafs mounted on the outside of the light blocking leaf mounting seat.

[0010] As a further improvement of the present utility model, the outer surface of the light-shielding blade mounting seat includes a plurality of first clamping portions located on a first circumference and second clamping portions located on a second circumference, and the support frame is clamped between the first clamping portions and the second clamping portions.

[0011] As a further improvement of the present utility model, the support frame is a sheet metal part, and the light-shielding blade mounting seat is a plastic part.

[0012] As a further improvement of the present utility model, bending edges are provided on the outer edges of the support frame, the lower edge of the bending edge abuts against the first limiting portion, and the upper edge of the bending edge abuts against the second limiting portion.

[0013] As a further improvement of the present utility model, the limiting component includes a U-shaped limiting main body located on one side of the mounting flat plate and extending outwards, a support rod passing through the limiting main body, an elastic member wound around the support rod, and a limiting piece penetrated by the support rod and capable of elastically translating and rotating on the support rod. A limiting groove for making the limiting piece in a limiting state is provided on the limiting main body.

[0014] As a further improvement of the present utility model, the limiting piece is in a shape of "ji", the limiting piece includes a limiting state and a non-limiting state. In the non-limiting state, the lower part of the limiting piece is located below the limiting main body, and in the limiting state, the lower part of the limiting piece is located above the limiting main body. Description of the Drawings

[0015] Figure 1 It is an exploded view of the external device of the present utility model.

[0016] Figure 2 It is an exploded view of the mounting bracket assembly of the present utility model.

[0017] Figure 3 It is an assembly schematic diagram of the light-shielding page assembly of the present utility model.

[0018] Figure 4 It is a schematic diagram of the non-limiting state of the present utility model.

[0019] Figure 5 It is one of the schematic diagrams of the limiting state of the present utility model.

[0020] In the figure: light blocking blade assembly 1; light blocking blade 11; support frame 12; triangular plate 121; light hole 1 122; bent edge 123; mounting seat 13; first circumference 131; first clamping portion 132; second circumference 133; second clamping portion 134; mounting frame 135; light hole 2 136; circular diffuser plate assembly 2; circular frame body 21; back side 211; diffuser sheet 22; magnet 23; mounting bracket assembly 3; mounting plate 31; limiting assembly 32; first limiting portion 321; second limiting portion 322; limiting body 323; limiting groove 3231; supporting rod 324; elastic member 325; limiting sheet 326; light hole 33; center axis 4. DETAILED DESCRIPTION

[0021] Combined with Figure 1 , a lamp external device, including a mounting bracket assembly 3 mounted on the outer edge of the lamp cap of the lamp, a circular diffuser assembly 2 placed in the mounting bracket assembly 3 and fixed to the mounting bracket assembly 3 by magnetic attraction, and a light-blocking blade assembly 1 mounted on the mounting bracket assembly 3 and located above the circular diffuser assembly 2; the mounting bracket assembly 3 includes a mounting plate 31, and a stopper assembly 32 located on one side of the mounting plate 31 and extending outward to prevent the light-blocking blade assembly 1 from sliding out. The mounting plate 31 is a hollow rectangular plate with a light-through hole 33 in the center of the plate; a plurality of mounting holes are distributed around the light-through hole 33 for mounting the mounting plate 31 on the outer edge of the lamp cap. The stopper assembly 32 extends upward and forms a structure with one side completely open, so that the light-blocking blade assembly 1 can be installed on the mounting bracket assembly 3 by translation insertion. The circular diffuser assembly 2 is provided with a plurality of magnets, which are coaxially mounted with the light-through hole 33 on the mounting plate 31 by magnetic attraction; and the circular diffuser assembly 2 is located between the light-blocking blade assembly 1 and the mounting bracket assembly 3. The beneficial effect of this embodiment is that the conventional external device can generally only install one light shielding blade assembly, and tools are required for installation or removal. The utility model can simultaneously install two external components, the circular diffuser assembly 2 and the light shielding blade assembly 1. The installation of the circular diffuser assembly 2 and the light shielding blade assembly 1 does not require screws, the installation method is simpler and more convenient, and the appearance of the external device is more beautiful.

[0022] As a new implementation method, combined with the Figure 1The circular diffuser assembly 2 includes a circular frame 21, a diffuser sheet 22 located in the circular frame, and a plurality of magnets 23 located on the back 211 of the circular frame. A rectangular flat plate is provided on the outer edge of the circular frame 21 for easy access. The outer circumference height of the circular frame 21 is greater than the inner circumference height; the back 211 of the circular frame 21 abuts against the mounting plate 31; a plurality of semi-through holes are provided on the inner side of the circular frame 21, and the width thereof is less than the width of the circular frame. The diffuser sheet 22 can be glued in the area surrounded by the semi-through holes by dispensing glue, and the diffuser sheet 22 is circular and can better fit the circular frame 21; the circular diffuser assembly 2 with the diffuser sheet 22 installed can make the emitted light distribution more uniform; it is understandable that a circular sheet with other functions can also be installed in the circular frame 21. A plurality of magnets 23 are also glued on the back 211 of the circular frame 21, so that the circular frame 21 is close to the mounting plate 31 to generate attraction and cling to the mounting plate 31. The beneficial effect of this embodiment is that the circular diffuser plate assembly 2 fixed by magnetic attraction is easier to install and disassemble.

[0023] As a new implementation method, combined with the Figure 2 The mounting bracket assembly 3 also includes a plurality of first limiting portions 321 with a first height and a plurality of second limiting portions 322 with a second height, which are arranged on the outer edge of the mounting plate 31 and are perpendicular to the mounting plate 31. The light-blocking blade assembly 1 is installed between the first limiting portion 321 and the second limiting portion 322. The first limiting portion 321 and the second limiting portion 322 are L-shaped plates with a bending portion extending toward the central axis at one end, respectively, and the bending portion is parallel to the mounting plate 31. At the outer edge of the mounting plate 31, the first limiting portion 321 and the second limiting portion 322 are staggered; the first limiting portion 321 and the second limiting portion 322 are arranged on three side surfaces of the mounting plate 31, and one side surface has an opening for the light-blocking blade assembly 1 to be installed by translation. The light shielding blade assembly 1 is positioned between the first limiting portion 321 and the second limiting portion 322, and is translated to make the light shielding blade assembly 1 abut against all the first limiting portions 321 and the second limiting portions 322, that is, the light shielding blade assembly 1 reaches the working position. The beneficial effect of this embodiment is that the light shielding blade assembly 1 does not need to be fixed with screws when it is installed on the mounting bracket assembly 3. The light shielding blade assembly 1 is aligned with the first limiting portion 321 and is installed on the mounting bracket assembly 3 through penetration.

[0024] Based on the above content, in this embodiment, combined with the attached Figure 1, the first height is greater than the height of the circular diffuser assembly 2. The circular diffuser assembly 2 is located inside the mounting bracket assembly 3; the circular diffuser assembly 2 can just allow the light-blocking leaf assembly 1 to be smoothly installed on the mounting bracket assembly 3 without causing any obstruction; and a certain space is left between the light-blocking leaf assembly 1 and the circular diffuser assembly 2. The beneficial effect of this embodiment is that a space is reserved for simultaneously installing the two external components of the circular diffuser assembly 2 and the light-blocking leaf assembly 1, so that the two external components of the circular diffuser assembly 2 and the light-blocking leaf assembly 1 can be installed at the same time without worrying about mutual interference.

[0025] Based on the above content, in this embodiment, combined with the attached Figure 3 The light-blocking leaf assembly 1 comprises a support frame 12 with a light-through hole 122 at the center of the bottom, a light-blocking leaf mounting seat 13 rotatably connected to the support frame 12 and with a light-through hole 136 at the center, and a plurality of light-blocking leaves 11 mounted on the outer side of the light-blocking leaf mounting seat 12. The support frame 12 is composed of two triangular plates 121, and two connecting holes for connecting the two triangular plates are respectively distributed at the two acute angle ends of each triangular plate 121; and the support frame 12 is penetrated and installed between the first limiting portion 321 and the second limiting portion 322. The light-through hole 122 provided on the support frame 12 is circular, and the light-blocking leaf mounting seat 13 is a circular ring structure; the light-blocking leaf mounting seat 13 is installed in the light-through hole 122, and the light-blocking leaf mounting seat 13 can rotate relative to the support frame 12; a plurality of mounting frames 135 for mounting the light-blocking leaves 11 are distributed on the outer circumference of the light-blocking leaf mounting seat 13, and the light-blocking leaves 11 are rotatably mounted on the mounting frames 135 through fasteners. The beneficial effect of this embodiment is that when the light shielding leaf assembly 1 is mounted on the mounting bracket assembly 3, the light shielding leaf mounting seat 13 can rotate 360° to the left or right. Compared with the traditional external device, the utility model has higher flexibility.

[0026] Based on the above content, in this embodiment, combined with the attached Figure 3 The outer surface of the light-blocking leaf mounting seat 13 includes a plurality of first clamping portions 132 located on the first circumference 131 and a second clamping portion 134 located on the second circumference 133, and the support frame 12 is clamped between the first clamping portion 132 and the second clamping portion 134. The first clamping portion 132 is below the mounting frame 135 of the light-blocking leaf mounting seat 13 and is located between the mounting frame 135 and the support frame 12. A plurality of second clamping portions 134 are evenly distributed on the second circumference 133, and the plurality of second clamping portions 134 are gear-shaped protrusions on the second circumference 133 and are located below the support frame 12. The spacing between the first clamping portion 132 and the second clamping portion 134 is slightly greater than the thickness of the support frame 12. The beneficial effect of this embodiment is that the support frame 12 is limited between the first circumference 131 and the second circumference 133, and no up and down displacement occurs; but a margin is left so that the light-blocking leaf mounting seat 13 can rotate.

[0027] Based on the above content, in this embodiment, combined with the attached Figure 1 , the support frame 12 is a sheet metal part, and the light shielding leaf mounting seat 13 is a plastic part. The weight of the external device can be reduced; since the light shielding leaf mounting seat 13 has good wear resistance, the surface coating of the light shielding leaf mounting seat 13 will not be worn due to rotation. The support frame 12 has better anti-deformation ability and stronger supporting ability. The beneficial effect of this embodiment is that the materials selected for the support frame 12 and the light shielding leaf mounting seat 13 make the rotation between the light shielding leaf mounting seat 13 and the support frame 12 smoother.

[0028] Based on the above content, in this embodiment, combined with the attached Figure 3 , the outer edge of the support frame 12 is provided with a bending edge 123, the lower edge of the bending edge 123 is in contact with the first limiting portion 321, and the upper edge of the bending edge 123 is in contact with the second limiting portion 322. The outer edge of the support frame 12 is provided with a bending edge 123 extending downward; the bending edge 123 is a rectangular flat plate, the height of the first limiting portion 321 is less than the second limiting portion 322; the bending edge 123 is limited between the first limiting portion 321 and the second limiting portion 322. And the height of the bending edge 123 is less than the height difference between the first limiting portion 321 and the second limiting portion 322, so that the support frame 12 can be smoothly inserted between the first limiting portion 321 and the second limiting portion 322. The beneficial effect of this embodiment is that the support frame 12 is fixed between the first limiting portion 321 and the second limiting portion 322, and will not shake up and down.

[0029] As a new implementation method, combined with the Figure 1 , Attachment Figure 4 and attached Figure 5, the limiting component 32 includes a U-shaped limiting body 323 located on one side of the mounting flat plate 31 and extending outward, a support rod 324 passing through the limiting body 323, an elastic member 325 wound around the support rod 324, and a limiting piece 326 penetrated by the support rod 324 and capable of elastically translating and rotating on the support rod 324. A limiting groove 3231 for making the limiting piece 326 in a limiting state is provided on the limiting body 323. The limiting body 323 is composed of three rectangular flat plates to form a U-shaped whole, and the opening of the limiting body 323 faces downward. Two through holes are respectively provided on the two opposite rectangular flat plates of the limiting body 323 located below the mounting flat plate 31. The support rod 324 is installed through the two through holes of the limiting body 323; the elastic member 325 surrounds one side of the support rod 324, one end of the elastic member 325 abuts against the limiting piece 326, and the other end abuts against the limiting body 323; two through holes are provided on the limiting piece 326 to allow the support rod 324 to pass through; the limiting piece 326 is located between the two opposite rectangular flat plates of the limiting body 323; the through holes on the limiting piece 326 are slightly larger than the support rod 324 to allow the limiting piece to elastically translate along the support rod or rotate around it; and the limiting piece 326 can elastically translate along the support rod 324 or rotate around the support rod 324. When the limiting piece 326 translates toward the elastic member 325 side and rotates upward to be clamped in the limiting groove 3231, the limiting piece 326 can be in a limiting state. The beneficial effect of this embodiment is that the limiting body 323 and the limiting piece 326 can fix the light-shielding blade assembly 1 on the mounting bracket assembly 3, and the situation of sliding outwards will not occur.

[0030] Based on the above content, in this embodiment, in combination with the attached Figure 1 , attached Figure 4 and attached Figure 5 , the limiting piece 326 is in a hexagon shape. The limiting piece 326 includes a limiting state and a non-limiting state. In the non-limiting state, the lower part of the limiting piece 326 is located below the limiting body 323, and in the limiting state, the lower part of the limiting piece 326 is located above the limiting body 323. There are two opposite flat plates on the upper part of the hexagon-shaped limiting piece 326, and each flat plate has a through hole, and the support rod 324 is installed through the through hole. When the limiting piece 326 is in the limiting state, the limiting piece 326 translates toward the elastic member 325 side and rotates upward, so that the lower part of the limiting piece 326 is located above the limiting body 323 and is clamped in the limiting groove 3231. When the limiting piece 326 is in the non-limiting state, the limiting piece 326 is located below the mounting flat plate 31 and abuts against the limiting body 323 at the same time. The beneficial effect of this embodiment is that when the limiting piece 326 is in the limiting state, the light-shielding blade assembly 1 can be fixed on the mounting bracket assembly 3; when the limiting piece 326 is in the non-limiting state, the light-shielding blade assembly 1 can be translated and inserted into or withdrawn from the mounting bracket assembly 3; and the installation of the light-shielding blade assembly 1 is a screwless installation method, which is more convenient to install and has a more concise and beautiful appearance.

Claims

1. A lighting fixture external device, characterized in that , including a mounting bracket assembly installed on the outer edge of the lamp cap of the lamp, a circular diffuser plate assembly placed inside the mounting bracket assembly and magnetically fixed thereto, and a light shielding blade assembly installed on the mounting assembly above the diffuser plate assembly; the mounting bracket assembly includes a mounting flat plate and a limiting assembly located on one side of the mounting flat plate and extending outward for preventing the light shielding blade assembly from sliding out.

2. A lamp external device according to claim 1, characterized in that: The circular diffuser plate assembly includes a circular frame, a diffuser sheet located inside the circular frame, and a plurality of magnets located on the back surface of the circular frame.

3. The external device for a lamp according to claim 1, characterized in that: The mounting bracket assembly further includes a plurality of first limiting portions with a first height and a plurality of second limiting portions with a second height provided on the outer edge of the mounting flat plate and perpendicular to the mounting flat plate, and the light shielding blade assembly is installed through between the first limiting portions and the second limiting portions.

4. A lamp external device according to claim 3, characterized in that: The first height is greater than the height of the circular diffuser plate assembly.

5. The external device for a lamp according to claim 3, characterized in that: The light shielding blade assembly includes a support frame with a light passing hole one provided at the center of the bottom, a light shielding blade mounting seat rotatably connected to the support frame and having a light passing hole two provided at the center, and a plurality of light shielding blades installed on the outer side of the light shielding blade mounting seat.

6. A lamp external device according to claim 5, characterized in that: The outer surface of the light shielding blade mounting seat includes a plurality of first clamping portions located on a first circumference and a second clamping portion located on a second circumference, and the support frame is clamped between the first clamping portion and the second clamping portion.

7. The external device for a lamp according to claim 6, characterized in that: The support frame is a sheet metal part, and the light shielding blade mounting seat is a plastic part.

8. The external device for a lamp according to claim 5, characterized in that: Bending edges are provided on the outer edges of the support frame, the lower edge of the bending edge abuts against the first limiting portion, and the upper edge of the bending edge abuts against the second limiting portion.

9. The external device for a lamp according to claim 1, characterized in that: The limiting assembly includes a C-shaped limiting main body located on one side of the mounting flat plate and extending outward, a support rod passing through the limiting main body, an elastic member wound around the support rod, and a limiting piece penetrated by the support rod and capable of elastically translating and rotating on the support rod, and a limiting groove for making the limiting piece in a limiting state is provided on the limiting main body.

10. The external device for a lamp according to claim 9, characterized in that: The limiting piece is in a shape of "ji", the limiting piece includes a limiting state and a non-limiting state, the lower part of the limiting piece corresponding to the non-limiting state is located below the limiting main body, and the lower part of the limiting piece corresponding to the limiting state is located above the limiting main body.

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