CN213872412U - Combined lighting system for classroom blackboard - Google Patents
Combined lighting system for classroom blackboard Download PDFInfo
- Publication number
- CN213872412U CN213872412U CN202023250820.6U CN202023250820U CN213872412U CN 213872412 U CN213872412 U CN 213872412U CN 202023250820 U CN202023250820 U CN 202023250820U CN 213872412 U CN213872412 U CN 213872412U
- Authority
- CN
- China
- Prior art keywords
- lamp
- main body
- light
- light guide
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Planar Illumination Modules (AREA)
Abstract
The utility model relates to a combined lighting system for a classroom blackboard, which comprises a lamp base, wherein the lamp base comprises a lamp main body and a sealing cover; the light source assembly comprises an LED lamp panel arranged on the lamp main body, the LED lamp panel is composed of a plurality of lamp panel sub-plates, the lamp panel sub-plates are fixed on the side surface of the lamp main body through bolts, and a plurality of LED light source groups are also arranged on the LED lamp panel; a light guide assembly comprises a light guide plate arranged outside an LED lamp panel, wherein the light guide plate is composed of a plurality of light guide sub-plates, the light guide sub-plates are fixed with a lamp body through bolts, and light expansion lenses are further arranged on the inner sides of the light guide sub-plates. The utility model has the advantages that: adopt the design of sectional type structure, can do the length of LED lamp plate with diffusion lens for a short time, and corresponding structural strength has just also promoted, avoids appearing bad phenomena such as fracture, and the fixed mode of bolt of deuterogamying need not the structure of processing positioning groove and so on in the lamps and lanterns main part, and processing is convenient, and the required precision has also reduced.
Description
Technical Field
The utility model relates to a lighting device, in particular to classroom blackboard is with combination lighting system.
Background
In order to increase the brightness of the blackboard, a pendant lamp is often arranged above the front of the blackboard, and the light of the pendant lamp directly irradiates the blackboard; in order to solve the technical problems, a blackboard lamp is designed, light is reflected to a blackboard surface through diffuse reflection, the problem that the existing hanging lamp can directly irradiate to eyes of a teacher is solved, the blackboard lamp has some defects, emergent light of the blackboard lamp irradiates on the local blackboard surface and cannot completely irradiate, the diffused light irradiation surface of the blackboard lamp is narrow, the illumination effect is poor, and meanwhile the blackboard lamp cannot adjust the combination position according to a construction site and the size of a blackboard to increase the irradiation range of the light.
Therefore, to above-mentioned phenomenon, just mentioned a novel wide-lighting lamp for blackboard illumination in patent CN111878748A, including the jib, the jib below is equipped with the lamps and lanterns main part rather than swing joint, the jib lower extreme is connected with first hoist and mount spare, the upper end is connected with inhales a piece, lamps and lanterns main part upper end be equipped with first hoist and mount spare match and can the sliding connection in spout on the first hoist and mount spare, lamps and lanterns main part lower extreme is equipped with arc leaded light face and the slope leaded light face that the interval set up, be equipped with the illuminating part in the lamps and lanterns main part just the illuminating part is located the top of arc leaded light face. It is through setting up arc leaded light face and slope leaded light face at lamps and lanterns main part lower extreme interval, after luminous portion hits light in arc leaded light face, arc leaded light face can be with light evenly spread to slope leaded light face, and its light irradiation range is wideer softer, realizes the abundant irradiation to the blackboard, and the illuminating effect is better.
The above lighting fixture still has certain defects when in use: due to the structural characteristics, in order to facilitate installation, the light source, the light expansion lens and the like need to be horizontally inserted, so that in the installation mode, when the light source and the light expansion lens are processed, the light source and the light expansion lens need to be made into a strip-shaped whole plate, and the light source, the light expansion lens and the like are thinner, namely the light source and the light expansion lens are likely to break in the processing, transportation and even installation processes, and the cost is correspondingly improved; when the lamp is installed, due to the adoption of the inserting installation mode, direct connecting pieces are not arranged among the light source, the light expansion lens and the lamp main body, and only the sealing covers on two sides are adopted for fixing, so that the phenomenon that the light source or the light expansion lens moves in the lamp main body is easily caused.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a processing is convenient, can effective reduce cost's classroom blackboard is with combination lighting system.
In order to solve the technical problem, the utility model adopts the technical scheme that: the combined lighting system for the classroom blackboard has the innovation points that: comprises that
The lamp base comprises a lamp main body and sealing covers connected to two sides of the lamp main body, the lamp main body is of a hollow square tube structure with two side openings, one of two end faces limiting the largest area of the lamp main body is a lamp source mounting face, and the other end face is a base fixing face;
the LED lamp panel is formed by a plurality of lamp panel sub-plates which are distributed in parallel along the long axis direction of the lamp main body, the lamp panel sub-plates are fixed on the side surface of the lamp main body through bolts, a plurality of groups of LED light source groups distributed along the width direction of the lamp base are further arranged on the LED lamp panel, and each group of LED light source group is formed by a plurality of LED light sources distributed along the long axis direction of the lamp main body;
one install the leaded light subassembly in lamps and lanterns main part side, the leaded light subassembly is including installing the light guide plate in the LED lamp plate outside, and the light guide plate comprises the several leaded light branch board that distributes side by side along the major axis direction of lamps and lanterns main part jointly, and the leaded light divides the board to pass through the bolt and is fixed mutually with the lamps and lanterns main part, the leaded light divides the board to include a bottom plate and connects a pair of long curb plate, a pair of short curb plate with one side of the bottom plate, long curb plate, short curb plate constitute one side open-ended hollow cuboid structure jointly, and the opening that the leaded light divides the board is just facing to the LED lamp plate, still is provided with the several to the convex diffusion lens of LED light source direction in the inboard of the bottom plate of leaded light branch board, and each diffusion lens and each group LED light source group one-to-one, the diffusion lens extends along the major axis direction of light guide plate, the transversal, the lower bottom of the light expansion lens is connected with the light guide sub-plate, the middle position of the upper bottom of the light expansion lens is also provided with a light expansion groove extending towards the lower bottom direction, the bottom surface of the light expansion groove is an arc-shaped convex surface, and two waists of the light expansion lens are outwards convex arc-shaped surfaces.
Further, the connection between the lamp main body and the cover is as follows: the side wall of one side of the sealing cover close to the lamp main body is provided with a plurality of positioning rib plates extending towards the direction of the lamp main body, the positioning rib plates are attached to the inner wall of the lamp main body, and after the positioning rib plates of the sealing cover are embedded into the inner wall of the lamp main body, the sealing cover and the lamp main body are fixed through bolts.
Furthermore, the surface of the lamp main body, which is positioned on one side of the lamp source mounting surface, is also provided with a plurality of mounting grooves, the mounting grooves are distributed in parallel along the width direction of the lamp main body, the mounting grooves extend along the long axis direction of the lamp main body, and the mounting grooves are in an inverted T shape.
Furthermore, the both sides of lamp plate branch board major axis direction still all are provided with an outside convex mistake proofing limiting plate, mistake proofing limiting plate eccentric settings.
Furthermore, a plurality of limiting columns extending towards the direction of the LED lamp panel are further arranged on the side face of one side, close to the LED lamp panel, of the light guide sub-plate, and the height of each limiting column is higher than that of the light expansion lens.
Furthermore, grooves for allowing lines to pass through are formed in the short side plates of the light guide sub-plate.
Furthermore, one side of the lamp source mounting surface of the lamp main body is also provided with a light guide surface which extends outwards and is obliquely arranged, and the light guide surface extends along the long axis direction of the lamp main body.
Furthermore, the middle position of the base fixed surface of the lamp main body is also provided with a power supply installation seat, the power supply installation seat comprises two groups of installation seat groups, one group of installation seat groups comprises a pair of first installation seats, the first installation seats are in an inverted L shape, the two first installation seats are distributed oppositely and extend along the long axis direction of the lamp main body, the two second installation seats are matched together to form an inverted T-shaped first installation cavity for accommodating the power supply installation, the other group of installation seat groups comprises a pair of second installation seats, the second installation seats are also in an inverted L shape, the two second installation seats are distributed oppositely and extend along the long axis direction of the lamp main body, the two second installation seats are respectively positioned at the outer sides of the two second installation seats, and the second installation seats are matched with the first installation seats to form an L-shaped second installation cavity for accommodating the power supply installation.
Furthermore, reinforcing rib plates are arranged on two sides of the base fixing surface of the lamp main body in the width direction, are in an inverted L shape and extend along the long axis direction of the lamp main body.
The utility model has the advantages that: the utility model discloses an illumination system to the LED lamp plate with expand light lens, adopts the design of sectional type structure, can do the LED lamp plate with the length that expands light lens for a short time, and corresponding structural strength just also has promoted, avoids appearing bad phenomena such as fracture, and the fixed mode of bolt of deuterogamying need not the structure of processing positioning groove class in the lamps and lanterns main part, and processing is convenient, and the required precision has also reduced.
The lamp main body and the sealing cover are connected in a mode that the positioning rib plates are matched with the bolts, when the lamp main body and the sealing cover are installed, the lamp main body and the lamp cover can be quickly positioned, assembling time is shortened, and assembling efficiency is improved.
The design of the mounting groove in the lamp main body is convenient for mounting the LED lamp panel and the light guide plate, and the LED lamp panel or the light guide plate is fixed without subsequently screwing a threaded hole in the lamp main body.
To the mistake proofing limiting plate that the both sides of lamp plate branch board major axis direction set up, on the one hand is in order to keep the relative spacing between two adjacent lamp plate branch boards, avoids two lamp plate branch boards too laminating and the mutual influence appears, and on the other hand, then is in order when the installation, guarantees the correctness of lamp plate branch board position, avoids appearing the phenomenon of turning upside down.
The limiting columns are arranged on the side faces of the light guide sub-plates and are used for limiting the relative position between the light expansion lens and the LED lamp plate, and the light expansion lens is prevented from being too close to the LED lamp plate to influence the diffusion of a light source; the grooves formed in the short side plates of the light guide plate are convenient for wiring.
The design of the light guide surface at the side end of the lamp main body aims to enable the light irradiation range to be wider and softer, so that the blackboard can be sufficiently irradiated, and the lighting effect is better.
To the power mount pad of the base stationary plane of lamps and lanterns main part, adopt the mode of first mount pad and second mount pad combination, the first installation cavity through the shape of falling T cooperates the installation that realizes the power jointly with two L shape second installation cavities, ensures the stability of power installation, avoids the phenomenon that the power appears rocking.
The design of the reinforcing rib plate on the base fixing surface of the lamp main body adopts an inverted L-shaped structure, so that on one hand, the reinforcing rib plate can play a certain reinforcing role in the structural strength of the lamp main body, and on the other hand, the reinforcing rib plate in the shape can be matched with a power supply mounting seat to form an L-shaped mounting cavity for mounting parts such as lifting lugs.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic view of the combined lighting system for the classroom blackboard of the present invention.
Fig. 2 is a side view of the lamp body of the present invention.
Fig. 3 is the utility model discloses well lamp divides the schematic diagram of board.
Fig. 4 is a schematic view of the light diffusing lens of the present invention.
Detailed Description
The following examples are presented to enable those skilled in the art to more fully understand the present invention and are not intended to limit the scope of the present invention.
A combined lighting system for a classroom blackboard as shown in fig. 1-4 comprises
A lamp base comprises a lamp body 1 and sealing covers 2 connected to two sides of the lamp body 1, the lamp body 1 is of a hollow square tube structure with openings on two sides, a cavity 11 for accommodating circuit wiring is formed in the lamp body 1, one end face of two end faces limiting the area of the lamp body 1 to be the largest is a lamp source mounting face 12, and the other end face is a base fixing face 13.
The connection between the lamp body 1 and the cover 2 is as follows: the side wall of one side of the sealing cover 2 close to the lamp body 1 is provided with a plurality of positioning rib plates extending towards the lamp body 1, the positioning rib plates are attached to the inner wall of the lamp body 1, after the positioning rib plates of the sealing cover 2 are embedded into the inner wall of the lamp body 1, the sealing cover 2 and the lamp body 1 are fixed through bolts, the lamp cover 2 is provided with through holes for allowing bolts to pass through, the inner wall of the lamp body 1 is also provided with a plurality of fixing seats 14 in threaded fit with the bolts, and the fixing seats 14 are provided with threaded through holes or threaded blind holes in threaded fit with the bolts. The connection between the lamp main body 1 and the sealing cover 2 is realized in a mode that the positioning rib plates are matched with the bolts, when the lamp main body and the lamp cover are installed, the lamp main body and the lamp cover can be quickly positioned, the assembling time is shortened, and the assembling efficiency is improved, and the bolts are matched with the fixing seats 14 so as to ensure the connection between the lamp main body 1 and the sealing cover 2 to be stable.
The utility model provides an install light source subassembly on lamps and lanterns main part 1, the light source subassembly is including installing the LED lamp plate on lamps and lanterns main part 1's lamp source installation face 12, the LED lamp plate comprises the several lamp plate branch board 4 that distributes side by side along lamps and lanterns main part 1's major axis direction jointly, lamp plate branch board 4 passes through the bolt fastening in lamps and lanterns main part 1's side, it has the through-hole 41 that the bolt passed to hold to open on lamp plate branch board 4, still install the LED light source group that the array distributes along the breadth direction of lamps and lanterns base on the LED lamp plate, every group LED light source group comprises the LED light source 42 that the several distributes along the major axis direction of lamps and lanterns main part 1 jointly.
Still all be provided with an outside convex mistake proofing limiting plate 43 in the both sides of 4 major axis directions of lamp plate branch boards, mistake proofing limiting plate 43 eccentric settings. For the error-proof limiting plates 43 arranged on the two sides of the long axis direction of the lamp panel sub-plates 4, on one hand, the relative spacing between the two adjacent lamp panel sub-plates 4 is maintained, and the two lamp panel sub-plates 4 are prevented from being too attached to each other to cause mutual influence, when being installed, the two adjacent lamp panel sub-plates 4 are mutually supported by the respective error-proof limiting plates 43 to ensure the relative spacing between the two lamp panel sub-plates 4, on the other hand, when being installed, the correct installation position of the lamp panel sub-plates 4 is ensured, and the phenomenon that the lamp panel sub-plates 4 are turned upside down is avoided, because the error-proof limiting plates 43 are eccentrically arranged, namely, the error-proof limiting plates 43 are not positioned on the central line of the lamp panel sub-plates 4, and are relatively close to the side edge of one side of the lamp panel sub-plates 4, therefore, in the design, when being installed, the positive and negative positions of the lamp panel sub-plates 4 can be judged by the error-proof limiting plates 43, the phenomenon of inversion is avoided.
The light guide assembly is arranged on the side face of the lamp body 1 and comprises a light guide plate arranged on the outer side of the LED lamp panel, the light guide plate is composed of a plurality of light guide sub-plates 5 which are distributed in parallel along the long axis direction of the lamp body 1, the light guide sub-plates 5 are fixed with the lamp body 1 through bolts, and blind holes through which the bolts penetrate are further formed in the light guide sub-plates 5.
The light guide plate 5 comprises a bottom plate 51, a pair of long side plates 52 and a pair of short side plates 53 connected to the same side of the bottom plate 51, the long side plates 52 and the short side plates 53 together form a hollow cuboid structure with an opening on one side, the opening side of the light guide plate 5 faces the LED lamp panel, a plurality of light diffusion lenses 54 protruding towards the direction of the LED light sources 42 are further arranged on the inner side of the bottom plate 51 of the light guide plate 5, each light diffusion lens 54 corresponds to each group of LED light source groups one by one, the light diffusion lenses 54 extend along the long axis direction of the light guide plate, the cross sections of the light diffusion lenses 54 are in an isosceles trapezoid shape, wherein the lower bottoms of the light diffusion lenses 54 are longer than the upper bottoms of the light diffusion lenses 54, the lower bottoms of the light diffusion lenses 54 are directly connected with the bottom plate 51 of the light guide plate 5 into a whole, light diffusion grooves 55 extending towards the lower bottoms of the light diffusion lenses 54 are further arranged in the middle positions of the upper bottoms of the light diffusion lenses 54, the size of the light expansion groove 55 is larger than that of the LED light source 42, and when the light guide plate is attached to the LED lamp panel, each LED light source 42 in the same group of LED light source group is arranged in the light expansion groove 55 of the same light expansion lens 54, the bottom surface of the light expansion groove 55 is an arc-shaped convex surface, and two waists of the light expansion lens 54 are arc-shaped surfaces protruding outwards.
The side face of the light guide plate 5 close to one side of the LED lamp panel is also provided with a plurality of limiting columns 56 extending towards the direction of the LED lamp panel, and the height of each limiting column 56 is higher than that of the light expansion lens 54. The limiting columns 56 arranged on the side surfaces of the light guide sub-plate 5 limit the relative positions of the light expansion lenses 54 and the LED lamp panel, and the light expansion lenses 54 are prevented from being too close to the LED lamp panel to affect the diffusion of the LED light sources 42.
The surface of the lamp body 1 on one side of the lamp source mounting surface 12 is further provided with a plurality of mounting grooves 15, the mounting grooves 15 are distributed in parallel along the width direction of the lamp body 1, the mounting grooves 15 extend along the long axis direction of the lamp body 1, and the mounting grooves 15 are inverted T-shaped. The design of mounting groove 15 on lamps and lanterns main part 1 then is the convenience of the installation of convenient LED lamp plate and light guide plate, need not follow-up screw hole again and realizes the fixed of LED lamp plate or light guide plate on lamps and lanterns main part 1, when fixing, directly pass the bolt behind the through-hole on lamp plate components of a whole that can function independently 4 or the leaded light minute board 5, fix with mounting groove 15, unusual convenience.
The lamp body 1 is further provided with a light guide surface 3 which extends outwards and is obliquely arranged on one side of the lamp source mounting surface 12, the light guide surface 3 extends along the long axis direction of the lamp body 1, and the oblique direction of the light guide surface 3 is gradually oblique from one side of the light guide surface 3 close to the light guide plate 5 to the direction of the central line far away from the light guide plate 5. The light guide surface 3 at the side end of the lamp body 1 is designed to enable the light irradiation range to be wider and softer, so that the blackboard can be sufficiently irradiated, and the lighting effect is better.
A power supply mounting seat is also arranged in the middle of the base fixing surface 13 of the lamp body 1, the power supply mounting seat comprises two groups of mounting seat groups, one of the mounting seat sets is composed of a pair of first mounting seats 16, the first mounting seats 16 are in an inverted L shape, the two first mounting seats 16 are distributed oppositely, the first installation seats 16 extend along the long axis direction of the lamp body 1, the two second installation seats 16 are matched together to form an inverted T-shaped first installation cavity 18 for installing a power supply, the other group of installation seats is composed of a pair of second installation seats 17, the second installation seats 17 are also in an inverted L shape, the two second installation seats 17 are distributed oppositely, the second mounting seats 17 also extend along the long axis direction of the lamp body 1, the two second mounting seats 17 are respectively located at the outer sides of the two second mounting seats 16, and the second mounting seats 17 and the first mounting seats 16 are matched to form an L-shaped second mounting cavity 19 for mounting a power supply. To the power mount pad of the base stationary plane 13 of lamps and lanterns main part 1, adopt the mode of first mount pad 16 and the combination of second mount pad 19, the first installation cavity 18 through the shape of falling T cooperates the installation that realizes the power jointly with two L shape second installation cavities 19, ensures the stability of power installation, avoids the power phenomenon of rocking to appear, in addition, the utility model discloses in, except can being used for installing the power, also can be used for installing parts such as the jib that are used for hanging lamps and lanterns to first installation cavity 18, second installation cavity 19.
Reinforcing rib plates 111 are arranged on two sides of the base fixing surface 13 of the lamp main body 1 in the width direction, the reinforcing rib plates 111 are in an inverted L shape, the reinforcing rib plates 111 extend along the long axis direction of the lamp main body 1, and the reinforcing rib plates 111 and the second mounting seat 19 are matched together to form an L-shaped third mounting cavity 112. For the design of the reinforcing rib plate 111 on the base fixing surface 13 of the lamp main body 1, an inverted L-shaped structure is adopted, on one hand, a certain reinforcing effect can be achieved on the structural strength of the lamp main body 1, and on the other hand, the reinforcing rib plate 111 in the shape can be matched with a power supply mounting seat to form a third mounting cavity 112 for mounting an L-shaped part, so that the mounting cavity can be used for mounting a lifting lug or a cover plate and the like and can be used as a spare mounting cavity.
The shape of the cover plate 2 is similar to the overall shape of the lamp main body 1, the light guide surface 3, the first mounting seat 16, the second mounting seat 17 and the reinforcing rib plate 111, the cover plate 2 can be attached to the lamp main body 1, the light guide surface 3, the first mounting seat 16, the second mounting seat 17 and the reinforcing rib plate 111, and meanwhile, the side wall of the cover plate 2 is provided with the positioning rib plates embedded into the lamp main body 1 and the light guide surface 3 respectively.
The utility model discloses an illumination system to the LED lamp plate with expand light lens, adopts the design of sectional type structure, can do the LED lamp plate with the length that expands light lens for a short time, and corresponding structural strength just also has promoted, avoids appearing bad phenomena such as fracture, and the fixed mode of bolt of deuterogamying need not the structure of processing positioning groove class in the lamps and lanterns main part, and processing is convenient, and the required precision has also reduced.
It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A combined lighting system for a classroom blackboard is characterized in that: comprises that
The lamp base comprises a lamp main body and sealing covers connected to two sides of the lamp main body, the lamp main body is of a hollow square tube structure with two side openings, one of two end faces limiting the largest area of the lamp main body is a lamp source mounting face, and the other end face is a base fixing face;
the LED lamp panel is formed by a plurality of lamp panel sub-plates which are distributed in parallel along the long axis direction of the lamp main body, the lamp panel sub-plates are fixed on the side surface of the lamp main body through bolts, a plurality of groups of LED light source groups distributed along the width direction of the lamp base are further arranged on the LED lamp panel, and each group of LED light source group is formed by a plurality of LED light sources distributed along the long axis direction of the lamp main body;
one install the leaded light subassembly in lamps and lanterns main part side, the leaded light subassembly is including installing the light guide plate in the LED lamp plate outside, and the light guide plate comprises the several leaded light branch board that distributes side by side along the major axis direction of lamps and lanterns main part jointly, and the leaded light divides the board to pass through the bolt and is fixed mutually with the lamps and lanterns main part, the leaded light divides the board to include a bottom plate and connects a pair of long curb plate, a pair of short curb plate with one side of the bottom plate, long curb plate, short curb plate constitute one side open-ended hollow cuboid structure jointly, and the opening that the leaded light divides the board is just facing to the LED lamp plate, still is provided with the several to the convex diffusion lens of LED light source direction in the inboard of the bottom plate of leaded light branch board, and each diffusion lens and each group LED light source group one-to-one, the diffusion lens extends along the major axis direction of light guide plate, the transversal isosceles trapezoid shape of personally submitting of diffusion lens, wherein, the lower base of diffusion lens is longer than the upper base of diffusion lens, the lower bottom of the light expansion lens is connected with the light guide sub-plate, the middle position of the upper bottom of the light expansion lens is also provided with a light expansion groove extending towards the lower bottom direction, the bottom surface of the light expansion groove is an arc-shaped convex surface, and two waists of the light expansion lens are outwards convex arc-shaped surfaces.
2. The combined lighting system for a classroom blackboard according to claim 1, wherein: the connection between the lamp main body and the sealing cover is as follows: the side wall of one side of the sealing cover close to the lamp main body is provided with a plurality of positioning rib plates extending towards the direction of the lamp main body, the positioning rib plates are attached to the inner wall of the lamp main body, and after the positioning rib plates of the sealing cover are embedded into the inner wall of the lamp main body, the sealing cover and the lamp main body are fixed through bolts.
3. The combined lighting system for a classroom blackboard according to claim 1, wherein: the lamp comprises a lamp body and is characterized in that the surface of the lamp body, which is positioned on one side of a lamp source mounting surface, is also provided with a plurality of mounting grooves, the mounting grooves are distributed in parallel along the width direction of the lamp body, the mounting grooves extend along the long axis direction of the lamp body, and the mounting grooves are inverted T-shaped.
4. The combined lighting system for a classroom blackboard according to claim 1, wherein: the lamp panel divides the both sides of board major axis direction still all to be provided with an outside convex mistake proofing limiting plate, mistake proofing limiting plate eccentric settings.
5. The combined lighting system for a classroom blackboard according to claim 1, wherein: the side face of one side of the light guide plate close to the LED lamp panel is provided with a plurality of limiting columns extending towards the direction of the LED lamp panel, and the height of each limiting column is higher than that of the light expansion lens.
6. The combined lighting system for a classroom blackboard according to claim 1, wherein: and grooves for allowing lines to pass through are formed in the short side plates of the light guide plate.
7. The combined lighting system for a classroom blackboard according to claim 1, wherein: one side of the lamp source mounting surface of the lamp main body is also provided with an outward extending light guide surface which is obliquely arranged, and the light guide surface extends along the long axis direction of the lamp main body.
8. The combined lighting system for a classroom blackboard according to claim 1, wherein: the middle position of the base fixed surface of the lamp main body is further provided with a power supply installation seat, the power supply installation seat comprises two groups of installation seat groups, one group of installation seat groups comprises a pair of first installation seats, the first installation seats are in an inverted L shape, the two first installation seats are distributed oppositely and extend along the long axis direction of the lamp main body, the two second installation seats are matched together to form an inverted T-shaped first installation cavity for accommodating the power supply installation, the other group of installation seat groups comprises a pair of second installation seats, the second installation seats are also in an inverted L shape, the two second installation seats are distributed oppositely and extend along the long axis direction of the lamp main body, the two second installation seats are located on the outer sides of the two second installation seats respectively, and the second installation seats and the first installation seats are matched to form an L-shaped second installation cavity for accommodating the power supply installation.
9. The combined lighting system for a classroom blackboard according to claim 1, wherein: and reinforcing rib plates are arranged on two sides of the base fixing surface of the lamp main body in the width direction, are in an inverted L shape and extend along the long axis direction of the lamp main body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023250820.6U CN213872412U (en) | 2020-12-30 | 2020-12-30 | Combined lighting system for classroom blackboard |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023250820.6U CN213872412U (en) | 2020-12-30 | 2020-12-30 | Combined lighting system for classroom blackboard |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213872412U true CN213872412U (en) | 2021-08-03 |
Family
ID=77044959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023250820.6U Active CN213872412U (en) | 2020-12-30 | 2020-12-30 | Combined lighting system for classroom blackboard |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213872412U (en) |
-
2020
- 2020-12-30 CN CN202023250820.6U patent/CN213872412U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210398777U (en) | Cylindrical lamp | |
| WO2020253526A1 (en) | Lens and lamp | |
| CN213872412U (en) | Combined lighting system for classroom blackboard | |
| CN206222109U (en) | A kind of combined type Projecting Lamp | |
| CN103162138B (en) | Multi-purpose flat plate lamp | |
| CN204785672U (en) | Anti -dazzle lighting module | |
| CN210800802U (en) | Lens, lens group and lamp | |
| WO2021063146A1 (en) | Light distribution assembly and illuminating lamp | |
| CN205299110U (en) | LED assembled lamp | |
| CN210979713U (en) | Lens and blackboard lamp lighting system that light utilization rate is high | |
| CN210637824U (en) | LED lamp for blackboard illumination | |
| CN210511378U (en) | Classroom emergency lighting lamp | |
| CN208901106U (en) | Light distribution element, light source assembly and illuminator | |
| KR101033540B1 (en) | Led reflection plate for tunnel | |
| KR20110002620A (en) | Led lamp | |
| CN201819100U (en) | Lamp structure with special-shaped reflecting shade | |
| CN112483960A (en) | Lighting lamp | |
| CN221402758U (en) | Improved structure of lighting lamp | |
| CN217785035U (en) | Device for realizing diffuse reflection of light | |
| CN220506607U (en) | Novel split type grid anti-dazzle lamp | |
| CN212805350U (en) | Hexagonal LED projection lamp set | |
| CN210004242U (en) | classroom lamp | |
| CN218153737U (en) | Direct type backlight LED diffuse reflection module lamp | |
| CN215675057U (en) | Anti-dazzle blackboard lamp with high illuminance uniformity | |
| CN217109304U (en) | Cicada wing lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |