CN113587047B - Light guide illuminating system with adjustable brightness - Google Patents
Light guide illuminating system with adjustable brightness Download PDFInfo
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- CN113587047B CN113587047B CN202110883207.8A CN202110883207A CN113587047B CN 113587047 B CN113587047 B CN 113587047B CN 202110883207 A CN202110883207 A CN 202110883207A CN 113587047 B CN113587047 B CN 113587047B
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- light guide
- light
- connecting pipe
- pipe
- driving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
- F21V1/02—Frames
- F21V1/08—Frames adjustable
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B17/00—Methods preventing fouling
- B08B17/02—Preventing deposition of fouling or of dust
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/72—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps in street lighting
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The application discloses a light guide illumination system with adjustable brightness, which comprises a light guide, a light guide and a light source, wherein one end of the light guide is provided with a diffuser; a connecting pipe is arranged between the light guide pipe and the diffuser, the diffuser is fixedly connected with one end of the connecting pipe, and a shading component for sealing the connecting pipe is arranged at the other end of the connecting pipe; the shading assembly comprises a plurality of fan-shaped shading plates which are sequentially arranged along the circumferential direction of the connecting pipe; each fan-shaped shading plate is connected with the connecting pipe in a sliding manner along the radial direction of the connecting pipe; a driving assembly for driving the corresponding fan-shaped light shielding plate to move is arranged between each fan-shaped light shielding plate and the connecting pipe; and a light supplementing lamp is fixedly arranged on the inner side wall of one end of the light guide pipe close to the connecting pipe. The fan-shaped light shielding plate is controlled to move by the driving assembly so as to adjust the quantity of light reflected by the light guide towards the diffuser, so that the intensity of the light emitted by the diffuser can be adjusted according to actual needs.
Description
Technical Field
The application relates to the field of lighting devices, in particular to a light guide lighting system with adjustable brightness.
Background
The lighting device is used for providing light for indoor or outdoor, and may be classified into an electric lighting device, a solar lighting device, a thermal (fire) lighting device, and the like according to the type of a driving source. The solar lighting device has the effects of green, energy saving and environmental protection.
A solar lighting device, also called a light guide lighting device, referring to fig. 1, includes a light guide 1, one end of the light guide 1 is located outdoors, and the other end of the light guide 1 extends indoors; a transparent lighting shade 2 is fixedly arranged at one end of the light guide pipe 1 positioned outdoors, and a diffuser 3 is fixedly arranged at one end of the light guide pipe 1 positioned indoors. The outdoor sunlight is emitted into the light guide pipe 1 through the light-collecting cover 2; after multiple reflections from the inner side walls of the light guide 1, the light can be emitted by the diffuser 3 for indoor illumination.
With respect to the related art in the above, the inventors consider that the intensity of the light emitted by the diffuser 3 varies with the intensity of the light outside the room; i.e. when the outdoor light is weak, the light emitted by the diffuser 3 is weak, and when the outdoor light is strong, the light emitted by the diffuser 3 is strong. The user has difficulty in adjusting the intensity of the light emitted from the diffuser 3 according to his or her needs, and thus the improvement is desired.
Disclosure of Invention
To improve the problem that the intensity of the light emitted by the diffuser is difficult to adjust, the present application provides a light guide illumination system with adjustable brightness.
The application provides a luminance adjustable light guide lighting system adopts following technical scheme:
a brightness adjustable light guide illumination system comprises a light guide, wherein one end of the light guide is provided with a diffuser; a connecting pipe is arranged between the light guide pipe and the diffuser, the diffuser is fixedly connected with one end of the connecting pipe, and a shading component used for sealing the connecting pipe is arranged at the other end of the connecting pipe;
the shading assembly comprises a plurality of fan-shaped shading plates which are sequentially arranged along the circumferential direction of the connecting pipe; each fan-shaped shading plate is connected with the connecting pipe in a sliding manner along the radial direction of the connecting pipe; a driving assembly for driving the corresponding fan-shaped light shielding plate to move is arranged between each fan-shaped light shielding plate and the connecting pipe;
and a light supplementing lamp is fixedly arranged on the inner side wall of one end, close to the connecting pipe, of the light guide pipe.
By adopting the technical scheme, when the light emitted by the diffuser needs to be attenuated, a user can start the driving assembly, and the driving assembly can drive the fan-shaped shading plate to move towards the center direction of the light guide pipe so as to shade the sunlight reflected by the light guide pipe towards the direction of the diffuser, so that the intensity of the light emitted by the diffuser is reduced; when the light emitted by the diffuser needs to be intensified, a user can drive the fan-shaped light shielding plate to move away from the center of the light guide through the driving component so as to reduce the obstruction of the fan-shaped light shielding plate to the light reflected by the inner side wall of the light guide, and therefore the intensity of the light emitted by the diffuser is improved. When sunlight is weakened, a user can turn on the light supplementing lamp, and light emitted by the light supplementing lamp can be emitted out of the diffuser to illuminate the indoor space; the light filling lamp is located fan-shaped light screen and keeps away from one side of diffuser, and user's accessible drive assembly drive fan-shaped light screen removes to the volume of blockking of the light of sending by the light filling lamp is controlled to fan-shaped light screen, thereby further control by the intensity of the light that the diffuser sent, be favorable to satisfying the user to the requirement of different light intensity.
Optionally, the driving assembly includes a driving screw connected to the corresponding sector light shielding plate through a thread, and a driving member connected to the driving screw to drive the driving screw to rotate; the axial direction of each driving screw is arranged along the sliding direction of the corresponding fan-shaped shading plate; the driving screw rod is connected with the connecting pipe in a rotating mode around the axis of the driving screw rod.
By adopting the technical scheme, the driving piece can drive the driving screw rod to rotate so as to drive the fan-shaped shading plate to move; when the driving piece drives the driving screw to rotate forwards, the fan-shaped shading plate moves towards the center direction of the light guide pipe; when the driving piece drives the driving screw rod to rotate reversely, the fan-shaped shading plate moves towards the direction away from the center of the light guide pipe; the driving piece is matched with the driving screw rod, the structure is simple, and the installation and the maintenance are convenient.
Optionally, the driving part comprises a plurality of driving gears which are in one-to-one correspondence with all the driving screws and a connecting gear which is used for being meshed with all the driving gears; each driving gear is coaxially and fixedly connected with the corresponding driving screw; the connecting gear is rotationally connected with the connecting pipe; the connecting pipe is fixedly provided with a driving motor for driving the connecting gear to rotate.
By adopting the technical scheme, the driving motor drives the connecting gear to rotate, and can drive all the driving gears to rotate so as to drive all the corresponding driving screws to rotate, so that all the fan-shaped light shielding plates can be driven to synchronously move, the uniformity of the distribution of the light transmitted through the gaps among the fan-shaped light shielding plates can be improved, and the uniformity of the distribution of the light emitted by the diffuser can be improved; the connecting gear is matched with the driving gear, so that the number of driving motors is reduced, and the use cost is reduced; the gear transmission has higher stability and stable speed, and is convenient for users to adjust the position of the fan-shaped shading plate.
Optionally, the inner side wall of the light pipe at the position of the light supplement lamp is provided with an accommodating groove for accommodating the light supplement lamp.
Through adopting above-mentioned technical scheme, the light filling lamp is located the holding tank, can reduce the light filling lamp to by the hindrance of the light of light pipe to diffuser direction reflection to be favorable to improving the intensity of the light that is sent by the diffuser.
Optionally, a shielding plate for shielding the accommodating groove is disposed on an inner side wall of the light guide, and a light guide reflection layer is disposed on a side wall of the shielding plate facing the center direction of the light guide.
By adopting the technical scheme, the shielding plate can shield the accommodating groove, so that the possibility that the light reflected from the light guide pipe to the diffuser enters the accommodating groove is reduced; the light guide reflection layer can reflect light irradiated at the position of the accommodating groove so as to reduce the influence of the accommodating groove on the light reflection area of the inner side wall of the light guide pipe; when the light supplement lamp is needed, the shielding plate is moved away.
Optionally, the shielding plate is fixedly provided with a connecting block extending to the outside of the light pipe, the inner side wall of the light pipe at the position of the connecting block is provided with a sliding groove for sliding the connecting block along the circumferential direction of the light pipe, and the sliding groove is communicated with the outer circumferential wall of the light pipe; the outer peripheral wall of the light guide pipe is rotatably provided with a rotating ring around the axis of the light guide pipe, and one end of the connecting block, which is far away from the shielding plate, is fixedly connected with the rotating ring; the rotating ring is connected with a rotating motor for driving the rotating ring to rotate.
Through adopting above-mentioned technical scheme, rotate the motor and drive the swivel becket and rotate, can drive the connecting block and slide to the drive shutter plate is close to or keeps away from to the holding tank direction, simple structure, and the transmission is stable.
Optionally, the shutter plate is fixedly provided with an extension plate for shielding the sliding groove.
Through adopting above-mentioned technical scheme, when the shutter plate hides and closes the holding tank, the slide groove can be hidden and closed to the extension board to reduce the loss of the light in the light pipe.
Optionally, a light collecting plate is arranged at a position of the light guide pipe, which is located at one side of the light supplementing lamp far away from the connecting pipe, and a light condensing reflection layer is arranged on a side wall of the light collecting plate facing the direction of the light supplementing lamp.
By adopting the technical scheme, the light condensing reflecting layer can reflect the light emitted by the light supplementing lamp to the diffuser direction, so that the loss of the light is reduced, the electric energy is saved, and the intensity of the light emitted by the light supplementing lamp to the diffuser direction is improved.
Optionally, a dust cover for covering all the fan-shaped light shielding plates is arranged between the connecting pipe and the light guide pipe.
By adopting the technical scheme, the dust cover covers all the fan-shaped shading plates, so that the possibility that the fan-shaped shading plates are contaminated by impurities such as dust can be reduced, and the possibility that external dust and the like enter the light guide pipe from the gap between the light guide pipe and the connecting pipe to contaminate the inner side wall of the light guide pipe can be reduced, thereby being beneficial to ensuring the cleanness of the inner side walls of the light guide pipe and the connecting pipe and ensuring the light reflection performance of the light guide pipe and the connecting pipe; on the other hand, the dust cover can reduce the possibility that light, heat and the like in the light guide pipe are emitted from the gap between the light guide pipe and the connecting pipe to cause the indoor temperature to rise.
Optionally, the dust cover includes a dust-proof housing sleeved on the outer peripheral wall of the connecting pipe and a dust-proof cover connected to the dust-proof housing, and the dust-proof cover is fixedly connected to the outer peripheral wall of the light pipe; the fixed solid fixed ring that is provided with of dustproof housing's periphery wall, dustproof lid is fixed to be provided with the elastic connection pole that extends to the dustproof housing direction, elastic connection pole's free end is fixed to be provided with and is used for keeping away from the butt piece of the lateral wall butt of dustproof lid one side with solid fixed ring.
By adopting the technical scheme, the abutting block is matched with the fixing ring, so that the movement of the dustproof shell along the axial direction of the connecting pipe can be limited, and the dustproof shell and the dustproof cover body are fixedly connected with each other; when fan-shaped light screen is overhauld to needs, the crooked connecting rod of operating personnel breaks away from with solid fixed ring to the butt piece, can follow the axial displacement dust guard casing of connecting pipe, simple structure, simple operation.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the drive assembly may adjust the position of the fan shield to adjust the amount of shielding of the fan shield from the light within the light pipe to adjust the intensity of the light emitted by the diffuser; when outdoor light is dark, the light supplementing lamp can enhance the intensity of light in the light guide pipe so as to improve the intensity of light emitted by the diffuser;
2. the shielding plate can reduce the possibility of light attenuation caused by the fact that the pipeline in the light guide is shot into the accommodating groove;
3. the dust cover can reduce the possibility that dust and the like are contaminated on the inner side walls of the light guide pipe, the connecting pipe, the diffuser and the like, so that the light reflection performance of the inner side walls of the light guide pipe and the connecting pipe and the light transmission performance of the diffuser are guaranteed.
Drawings
Fig. 1 is a schematic view of an overall structure of a solar lighting device in the related art.
Fig. 2 is a schematic diagram of an overall structure of a light guide illumination system with adjustable brightness according to an embodiment of the present application.
Fig. 3 is a schematic view with the dust cover removed to show the connection structure between the connection tube and the light pipe.
Fig. 4 isbase:Sub>A schematic sectional viewbase:Sub>A-base:Sub>A in fig. 3.
Fig. 5 is an enlarged view of a portion B in fig. 4.
Fig. 6 is an exploded view for showing a connection structure between the shielding plate and the light guide.
Fig. 7 is a schematic view for showing the structure of the driving member.
Fig. 8 is a schematic view for showing a dust cover structure.
Description of reference numerals:
1. a light pipe; 11. an accommodation hole; 111. an accommodating groove body; 1111. accommodating grooves; 12. a light supplement lamp; 13. a light-gathering plate; 131. a light-condensing reflective layer; 14. a shutter plate; 141. connecting blocks; 142. a light-guiding reflective layer; 143. an extension plate; 15. a sliding groove; 16. a rotating ring; 161. a rotating gear; 17. a support plate; 171. rotating the motor; 1711. a driving gear; 2. a lighting cover; 3. a diffuser; 4. a connecting pipe; 41. a fixed mount; 411. a drive motor; 4111. butting gears; 5. a fan-shaped light screen; 51. a drive assembly; 511. a drive screw; 512. a drive member; 5121. a drive gear; 5122. a connecting gear; 52. mounting blocks; 521. a threaded hole; 522. a guide hole; 5221. a guide rod; 6. a dust cover; 61. a dust-proof housing; 611. a fixing ring; 62. a dust-proof cover body; 621. an elastic connecting rod; 6211. a butting block.
Detailed Description
The present application is described in further detail below with reference to figures 2-8.
The embodiment of the application discloses a light guide illumination system with adjustable brightness. Referring to fig. 2 and 3, a light guide illumination system with adjustable brightness includes a light guide 1, one end of the light guide 1 is located outdoors, and the other end of the light guide 1 extends indoors. A lighting shade 2 is fixedly arranged at one end of the light guide pipe 1 positioned outdoors, and a diffuser 3 is connected at one end of the light guide pipe 1 positioned indoors. A connecting pipe 4 is arranged between the light guide pipe 1 and the diffuser 3, one end of the diffuser 3 and one end of the connecting pipe 4 are fixedly connected through a screw, and one end, far away from the diffuser 3, of the connecting pipe 4 is coaxially arranged with the light guide pipe 1. After sunlight outdoors is emitted into the light guide pipe 1 through the light-collecting cover 2, the light rays are reflected by the inner side wall of the light guide pipe 1 and the inner side wall of the connecting pipe 4, and then the light rays can be emitted out through the diffuser 3 to illuminate indoors.
Referring to fig. 3 and 4, the coupling tube 4 has the same size as the inner diameter of the light guide 1. The inner side wall of the connection pipe 4 is provided with a silver coating through a silver coating process to improve the reflective performance of the inner side wall of the connection pipe 4. The fixing frame 41 is welded to the outer peripheral wall of the connecting pipe 4, and one end of the fixing frame 41, which is far away from the connecting pipe 4, is welded and fixed to the outer peripheral wall of the light guide pipe 1. A shading assembly is arranged between the connecting tube 4 and the mutually facing end walls of the light guide 1, the shading assembly comprising a plurality of fan-shaped shading plates 5, the thickness of the fan-shaped shading plates 5 being equal to the distance between the connecting tube 4 and the mutually facing end walls of the light guide 1.
Referring to fig. 3 and 4, all the fan-shaped light shielding plates 5 are sequentially disposed along the circumferential direction of the connection pipe 4 to form a disk shape to close the connection pipe 4. A mounting block 52 is welded and fixed on the side wall of each fan-shaped light shielding plate 5 facing the direction of the connecting pipe 4, a threaded hole 521 and a guide hole 522 penetrate through the mounting block 52 along the radial direction of the connecting pipe 4, and the axial direction of the guide hole 522 is the same as the axial direction of the threaded hole 521; the number of the guide holes 522 is two, and the two guide holes 522 are located at positions on both sides of the screw hole 521. The inner side wall of each guide hole 522 is slidably connected with a guide rod 5221, one end of the guide rod 5221 close to the connecting pipe 4 is welded and fixed to the outer peripheral wall of the connecting pipe 4, and one end of the guide rod 5221 far away from the connecting pipe 4 is welded and fixed to the fixing frame 41. The guide rod 5221 is engaged with the guide hole 522, and the sector shielding plate 5 is slidably coupled to the coupling pipe 4.
Referring to fig. 4, a driving assembly 51 is connected between each of the fan-shaped light shielding plates 5 and the connecting pipe 4, and the driving assembly 51 can drive the corresponding fan-shaped light shielding plate 5 to slide along the corresponding guide rod 5221, so as to drive the fan-shaped light shielding plate 5 to move closer to or away from the center direction of the connecting pipe 4, so as to adjust the distance between two adjacent fan-shaped light shielding plates 5, and thus adjust the amount of light emitted into the connecting pipe 4 by the light guide 1.
Referring to fig. 4, an accommodating hole 11 is formed through an inner sidewall of one end of the light guide 1 close to the connecting tube 4 in a wall thickness direction of the light guide 1, and a plurality of accommodating holes 11 are sequentially formed in the circumferential direction of the light guide 1. An accommodating groove body 111 is fixedly welded on the inner side wall of each accommodating hole 11, and one end of an opening of each accommodating groove body 111 is arranged towards the center direction of the light guide pipe 1; in this embodiment, the groove on the accommodating groove body 111 is an accommodating groove 1111. The inside wall of light pipe 1 is provided with light filling lamp 12, and light filling lamp 12 is the LED lamp. The light filling lamp 12 is located in the holding groove 1111, and the light filling lamp 12 is fixedly connected with the inner side wall of the holding groove 1111 through a screw.
Referring to fig. 4 and 5, a light-gathering plate 13 is fixedly welded to the inner side wall of the accommodating groove; the light-gathering plate 13 is located on a side of the light supplement lamp 12 away from the connection tube 4. A light gathering reflection layer 131 is arranged on the side wall of the light gathering plate 13 facing the direction of the light supplementing lamp 12, and the light gathering reflection layer 131 is a reflection layer; in this embodiment, the light gathering reflective layer 131 is a silver-plated layer manufactured by a silver plating process. The light-collecting plate 13 is an arc-shaped plate, and the center of the light-collecting plate 13 is sunken and bent towards the direction away from the light-compensating lamp 12, so that the light emitted by the light-compensating lamp 12 is reflected towards the direction of the connecting pipe 4, and the loss of the light-compensating lamp 12 is reduced.
Referring to fig. 4 and 6, the inner side wall of the light guide 1 near each receiving groove 1111 is provided with a shielding plate 14; all the shielding plates 14 and all the accommodating grooves are located on the same circumference. The shielding plates 14 are thin plates, and the side wall of one side of each shielding plate 14 away from the center of the light guide 1 is attached to the inner side wall of the light guide 1. The inner side wall of the light guide pipe 1 at the position of each shielding plate 14 is provided with a sliding groove 15 along the circumferential direction of the light guide pipe 1, and the sliding groove 15 penetrates along the wall thickness direction of the light guide pipe 1, so that the sliding groove 15 is communicated with the outer circumferential wall of the light guide pipe 1. Every shielding plate 14 keeps away from the lateral wall of one side of the center of light pipe 1 and all welded fastening has connecting block 141, and connecting block 141 keeps away from the one end of shielding plate 14 and is located the corresponding groove 15 that slides, and the width of connecting block 141 and the width adaptation of the groove 15 that slides, and connecting block 141 can follow light pipe 1's circumference slip to drive shielding plate 14 and remove, so that shielding plate 14 is close to or keeps away from to the holding tank 1111 direction that corresponds.
Referring to fig. 4 and 6, when the shielding plate 14 is away from the corresponding receiving groove 1111, the receiving groove 1111 is exposed, so that light emitted from the light supplement lamp 12 is emitted toward the connecting pipe 4; when the shielding plate 14 approaches the corresponding receiving groove 1111, the shielding plate 14 can shield the corresponding receiving groove 1111. A light guide reflection layer 142 is arranged on the side wall of the shielding plate 14 facing the central direction of the light guide 1, and the light guide reflection layer 142 is a reflection layer; in this embodiment, the light-guiding reflective layer 142 is a silver-plated layer manufactured by a silver plating process. The light guide reflection layer 142 can fill up the missing of the reflection surface of the light guide 1 at the position of the receiving groove 1111, thereby reducing the light loss in the light guide 1.
Referring to fig. 6, the connection block 141 is located at an end of the shutter plate 14 away from the corresponding receiving groove 1111; the shielding plate 14 is fixedly provided with an extending plate 143, one end of the extending plate 143 is integrally connected with one end of the shielding plate 14 close to the connecting block 141, and the other end of the extending plate 143 extends along the circumferential direction of the light guide 1 in the direction away from the shielding plate 14 to shield the sliding groove 15. The side wall of the extension plate 143 facing the center direction of the light guide 1 is formed with a silver plated layer by a silver plating process to improve the light reflection performance of the extension plate 143.
Referring to fig. 6, the outer peripheral wall of the light guide 1 near the sliding groove 15 is sleeved with a rotating ring 16, and the rotating ring 16 is rotatably connected with the light guide 1 through a bearing. One end of each connecting block 141, which is away from the corresponding shutter plate 14, extends to the outside of the sliding groove 15 in the radial direction of the light guide 1, and all the connecting blocks 141 are fixedly connected with the rotating ring 16 by screws. A rotating gear 161 is coaxially welded and fixed to the outer peripheral wall of the rotating ring 16; the outer peripheral wall of the connection pipe 4 is welded and fixed with a support plate 17, and the support plate 17 is fixedly connected with a rotating motor 171 through a screw. An output shaft of the rotating motor 171 is coaxially welded and fixed with a driving gear 1711, and the driving gear 1711 is meshed with the rotating gear 161; when the rotating motor 171 is operated, the driving gear 1711 drives the rotating gear 161 to rotate, thereby rotating the rotating ring 16, and further driving the connecting block 141 to slide, thereby moving the shutter 14.
Referring to fig. 4 and 7, the drive assembly 51 includes a drive screw 511 and a drive member 512. The driving screw 511 is in threaded connection with the inner side wall of the threaded hole 521 of the corresponding mounting block 52; one end of the driving screw 511 close to the connecting pipe 4 is rotatably connected to the outer circumferential wall of the connecting pipe 4 through a bearing, and one end of the driving screw 511 far from the connecting pipe 4 is rotatably connected to the fixing bracket 41 through a bearing. The driving screw 511 rotates to drive the mounting block 52 to move, so as to drive the corresponding sector light-shielding plate 5 to move.
Referring to fig. 4 and 7, the driving member 512 includes a plurality of driving gears 5121 and a connection gear 5122, and all of the driving gears 5121 correspond to all of the driving screws 511 one to one; each driving gear 5121 is fixed coaxially with a corresponding driving screw 511 by welding, and the driving gear 5121 is located at one end of the driving screw 511 close to the connecting pipe 4. The connecting gear 5122 is sleeved on the outer peripheral wall of the connecting pipe 4, and the connecting gear 5122 is rotatably connected to the outer peripheral wall of the connecting pipe 4 through a bearing. The drive gear 5121 and the connection gear 5122 are both bevel gears, and the connection gear 5122 is engaged with all of the drive gears 5121. The fixing frame 41 is fixedly provided with a driving motor 411 through screws, and an output shaft of the driving motor 411 is fixedly welded with a butt gear 4111. The docking gear 4111 is engaged with the connecting gear 5122, and the driving motor 411 can drive the connecting gear 5122 to rotate, so as to drive all the driving gears 5121 to rotate, and further drive all the driving screws 511 to rotate.
Referring to fig. 2 and 8, a dust cover 6 is provided between the connection tube 4 and the light guide 1, and the dust cover 6 includes a dust housing 61 and a dust cover 62. The dust-proof housing 61 is sleeved on the outer peripheral wall of the connecting pipe 4, and the dust-proof housing 61 can slide along the axial direction of the connecting pipe 4. The dustproof cover 62 is sleeved on the peripheral wall of the light guide 1, and the dustproof cover 62 is welded and fixed with the peripheral wall of the light guide 1. One end of the dustproof shell 61 close to the light guide pipe 1 is open; when the dust-proof housing 61 is moved toward the light guide 1, the dust-proof housing 61 can cover the fixing frame 41 and the fan-shaped light shielding plate 5 to achieve the dust-proof effect.
Referring to fig. 8, a fixing ring 611 is fixed by welding to the outer peripheral wall of the dust-proof housing 61 at the end close to the light guide 1. The dustproof cover 62 is sequentially provided with a plurality of elastic connecting rods 621 along the circumferential direction of the light guide 1, one end of each elastic connecting rod 621 is welded and fixed with the dustproof cover 62, and the other end of each elastic connecting rod 621 extends towards the dustproof housing 61 along the axial direction of the light guide 1. An abutting block 6211 is welded and fixed to one end of the elastic connecting rod 621 away from the dust-proof cover 62, and the abutting block 6211 is located on a side wall of the elastic connecting rod 621 facing the light guide 1. In this embodiment, the elastic connecting rod 621 is made of steel.
Referring to fig. 8, when the dust-proof housing 61 is mounted, the operator first moves the dust-proof housing 61 to a position where the fixing ring 611 abuts against the abutment block 6211; then, the operator bends the elastic connecting rod 621 in the direction away from the center of the light guide 1 to disengage the abutment block 6211 from the fixing ring 611, so that the dust-proof housing 61 continues to move toward the dust-proof cover 62; when the dust-proof case 61 abuts against the dust-proof cover 62, the operator releases the elastic connecting rod 621, and the elastic connecting rod 621 elastically deforms and recovers, and at this time, the abutting block 6211 abuts against the side wall of the fixing ring 611 on the side away from the dust-proof cover 62, so that the dust-proof case 61 and the dust-proof cover 62 are fixedly connected to each other.
The implementation principle of the light guide illumination system with adjustable brightness in the embodiment of the application is as follows:
when the light emitted from the diffuser 3 needs to be attenuated, the user can start the driving motor 411 to make the driving motor 411 rotate forward, and at this time, the fan-shaped light shielding plate 5 moves towards the center direction of the light guide 1 to shield the sunlight reflected by the light guide 1 towards the diffuser 3, so as to reduce the intensity of the light emitted from the diffuser 3; when it is desired to dim the light emitted by the diffuser 3, the user may activate the drive motor 411 and reverse the drive motor 411, at which time the fan-shaped light shield 5 moves away from the center of the light guide 1 to reduce the obstruction of the fan-shaped light shield 5 to the light reflected by the inner sidewalls of the light guide 1, thereby increasing the intensity of the light emitted by the diffuser 3. In cloudy days, or in the early morning, evening or night, the user can turn on the fill light 12, and the light emitted from the fill light 12 can be emitted from the diffuser 3 to illuminate the room.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (6)
1. A brightness adjustable light guide illumination system, comprising a light guide (1), wherein one end of the light guide (1) is provided with a diffuser (3); the method is characterized in that: a connecting pipe (4) is arranged between the light guide pipe (1) and the diffuser (3), the diffuser (3) is fixedly connected with one end of the connecting pipe (4), and the other end of the connecting pipe (4) is provided with a shading component for sealing the connecting pipe (4);
the shading component comprises a plurality of fan-shaped shading plates (5) which are sequentially arranged along the circumferential direction of the connecting pipe (4); each fan-shaped shading plate (5) is connected with the connecting pipe (4) in a sliding manner along the radial direction of the connecting pipe (4); a driving assembly (51) for driving the corresponding fan-shaped light shielding plate (5) to move is arranged between each fan-shaped light shielding plate (5) and the connecting pipe (4);
a light supplement lamp (12) is fixedly arranged on the inner side wall of one end of the light guide pipe (1) close to the connecting pipe (4);
the inner side wall of the light pipe (1) at the position of the light supplement lamp (12) is provided with an accommodating groove (1111) for accommodating the light supplement lamp (12);
a shading plate (14) used for shading the containing groove (1111) is arranged on the inner side wall of the light guide pipe (1), and a light guide reflection layer (142) is arranged on the side wall, facing the center direction of the light guide pipe (1), of the shading plate (14);
the shielding plate (14) is fixedly provided with a connecting block (141) extending to the outside of the light guide pipe (1), the inner side wall of the light guide pipe (1) at the position of the connecting block (141) is provided with a sliding groove (15) for the sliding of the connecting block (141) in a penetrating manner along the circumferential direction of the light guide pipe (1), and the sliding groove (15) is communicated with the outer circumferential wall of the light guide pipe (1); the outer peripheral wall of the light guide pipe (1) is rotatably provided with a rotating ring (16) around the axis of the light guide pipe (1), and one end, far away from the shielding plate (14), of the connecting block (141) is fixedly connected with the rotating ring (16); the rotating ring (16) is connected with a rotating motor (171) for driving the rotating ring to rotate;
the shutter plate (14) is fixedly provided with an extension plate (143) for closing the sliding groove (15).
2. A light guide illumination system as claimed in claim 1, wherein: the driving assembly (51) comprises a driving screw rod (511) in threaded connection with the corresponding fan-shaped shading plate (5) and a driving piece (512) which is used for being connected with the driving screw rod (511) to drive the driving screw rod (511) to rotate; the axial direction of each driving screw rod (511) is arranged along the sliding direction of the corresponding fan-shaped shading plate (5); the driving screw rod (511) is rotatably connected with the connecting pipe (4) around the axis of the driving screw rod.
3. A brightness adjustable light guide illumination system as set forth in claim 2, wherein: the driving piece (512) comprises a plurality of driving gears (5121) which correspond to all the driving screws (511) in a one-to-one mode and connecting gears (5122) which are used for being meshed with all the driving gears (5121); each driving gear (5121) is coaxially and fixedly connected with the corresponding driving screw (511); the connecting gear (5122) is rotationally connected with the connecting pipe (4); the connecting pipe (4) is fixedly provided with a driving motor (411) for driving the connecting gear (5122) to rotate.
4. A brightness adjustable light guide illumination system as set forth in claim 1, wherein: the light guide pipe (1) is provided with a light gathering plate (13) at the position of one side of the light supplementing lamp (12) far away from the connecting pipe (4), and a light gathering reflection layer (131) is arranged on the side wall of the light gathering plate (13) facing the direction of the light supplementing lamp (12).
5. A light guide illumination system as claimed in claim 1, wherein: and a dust cover (6) used for covering all the fan-shaped shading plates (5) is arranged between the connecting pipe (4) and the light guide pipe (1).
6. A brightness adjustable light guide illumination system as claimed in claim 5, wherein: the dustproof cover (6) comprises a dustproof shell (61) sleeved on the peripheral wall of the connecting pipe (4) and a dustproof cover body (62) connected with the dustproof shell (61), and the dustproof cover body (62) is fixedly connected with the peripheral wall of the light guide pipe (1); the dustproof cover body (62) is fixedly provided with an elastic connecting rod (621) extending towards the direction of the dustproof shell body (61), and the free end of the elastic connecting rod (621) is fixedly provided with an abutting block (6211) used for abutting against the side wall of one side, away from the dustproof cover body (62), of the fixed ring (611).
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| CN202110883207.8A CN113587047B (en) | 2021-08-02 | 2021-08-02 | Light guide illuminating system with adjustable brightness |
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| CN202110883207.8A CN113587047B (en) | 2021-08-02 | 2021-08-02 | Light guide illuminating system with adjustable brightness |
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| CN114360095B (en) * | 2021-12-28 | 2024-04-26 | 南京合信自动化有限公司 | Intelligent three-colour lamp |
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