CN211925565U - Anti-dazzle LED blackboard lamp - Google Patents
Anti-dazzle LED blackboard lamp Download PDFInfo
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- CN211925565U CN211925565U CN202020991687.0U CN202020991687U CN211925565U CN 211925565 U CN211925565 U CN 211925565U CN 202020991687 U CN202020991687 U CN 202020991687U CN 211925565 U CN211925565 U CN 211925565U
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Abstract
The utility model relates to an anti-dazzle LED blackboard lamp, which comprises an installation rod, a lamp body arranged below the installation rod, a light source plate and a driving power supply which are arranged in the lamp body, and end covers arranged at two ends of the lamp body, wherein an upper lens and a lower lens with a light-emitting surface facing a blackboard are arranged in the lamp body, and the light source plate is fixed above the lenses; the light emitting surface of the lower lens is vertical to the light emitting direction of the light source plate, and the light emitting surface of the upper lens is not vertical to the light emitting direction of the light source plate; the lamp body is also internally provided with a grating consisting of a plurality of grating plates, the outer edges of the grating plates are flush, the inner edges of the grating plates are in a step shape, the edges of the steps are respectively positioned at the front ends of the upper lens and the lower lens, and the deflection direction of the grating plates is parallel to the light emergent direction of the upper lens. The utility model discloses when lighting to the blackboard, the illuminance is reasonable, and the degree of consistency is high, anti-dazzle.
Description
Technical Field
The utility model belongs to the technical field of the illumination lamps and lanterns, concretely relates to anti-dazzle LED blackboard lamp.
Background
The blackboard lamp is essential at the teaching in-process, and under the not good condition of light, the blackboard lamp is used for providing good visual environment, guarantees that teacher and student write and read on the blackboard. The high-quality blackboard illumination needs to ensure the reasonable vertical illumination, high uniformity, proper installation position and no discomfort glare. The traditional blackboard lamp generally only uses a fluorescent lamp tube, the blackboard lamp is close to the upper part of the blackboard and far from the lower part of the blackboard, so that the illumination on the surface of the blackboard lamp from top to bottom is gradually attenuated, and the average value of the illumination on the surface of the blackboard is low, so that the existing blackboard lamp has the defects of insufficient illumination and low uniformity; especially, when the teacher turns to one side of the student after writing the blackboard writing, the light line of the blackboard can generate uncomfortable glare feeling to the teacher.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a LED blackboard lamp of anti-dazzle that illuminance is reasonable, the degree of consistency is high is provided.
In order to solve the technical problem, the utility model provides an anti-glare LED blackboard lamp, which comprises an installation rod, a lamp body arranged below the installation rod, a light source plate and a driving power supply which are arranged in the lamp body, and end covers arranged at two ends of the lamp body, wherein an upper lens and a lower lens with light-emitting surfaces facing a blackboard are arranged in the lamp body, and the light source plate is fixed above the lenses; the light emitting surface of the lower lens is vertical to the light emitting direction of the light source plate, and the light emitting surface of the upper lens is not vertical to the light emitting direction of the light source plate; the lamp body is also internally provided with a grating consisting of a plurality of grating plates, the outer edges of the grating plates are flush, the inner edges of the grating plates are in a step shape, the edges of the steps are respectively positioned at the front ends of the upper lens and the lower lens, and the deflection direction of the grating plates is parallel to the light emergent direction of the upper lens.
Preferably, the distance between adjacent grating plates is 30-50 mm.
Preferably, the vertical distance between the front end of the upper lens and the outer edge of the grating plate is 20-30 mm.
Preferably, an included angle between the light emitting surface of the upper lens and the light emitting direction of the light source plate is 35-65 °.
Preferably, the lower surface of the back surface of the lamp body has an arc structure.
Preferably, the grille is installed in the lamp body through grille installation grooves formed in the upper and lower ends of the lamp body.
Preferably, the mounting rod is rotatably mounted to the upper surface of the lamp body.
Preferably, the upper surface of the lamp body is provided with an installation clamping groove, and the lower end of the installation rod is rotatably connected with a connecting piece fixed in the installation clamping groove.
Preferably, the length of the mounting bar is adjustable.
Preferably, the mounting rod comprises a telescopic rod and a loop bar sleeved outside the telescopic rod, and the length of the mounting rod is adjusted by adjusting the length of the telescopic rod sleeved in the loop bar.
The beneficial effects of the utility model are that:
1. the utility model discloses an install the upper and lower two lenses that the play plain noodles faced the blackboard in the lamp body, wherein the play plain noodles of lower lens is perpendicular with the light ejection direction of light source board, and the play plain noodles of upper lens is not perpendicular with the light ejection direction of light source board, carries out optics level through upper lens and handles, makes the whole downwards of light, improves the degree of consistency, improves the illuminance on blackboard surface, makes the light of shining on the blackboard even; meanwhile, a grating consisting of a plurality of grating plates is further installed in the lamp body, the outer edge of each grating plate is level, the inner edge of each grating plate is in a step shape, the edges of the steps are respectively located at the front ends of the upper lens and the lower lens, and the deflection direction of each grating plate is parallel to the light emitting direction of the upper lens, so that the refracted light of the upper lens for providing main illumination for the blackboard is more uniformly distributed, and glare is prevented.
2. The utility model discloses a lower surface at the lamp body back is the arc structure, more conveniently adjusts the angle that shines of blackboard lamp to supplement the light of arcwall face through lens down, further improve the degree of consistency behind the grid plate, prevent the glare when improving blackboard surface illuminance.
3. The utility model discloses an installation pole adjustable length, and rotatable the installing height and the position in lamp body upper surface, adjustable blackboard lamp.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and embodiments.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a side sectional view of the lamp body of the present invention.
Fig. 4 is an enlarged view of a portion of the telescopic rod of fig. 3 below.
Fig. 5 is the schematic view of the internal structure of the lamp body with the end cap removed.
Detailed Description
As shown in fig. 1-5, an anti-glare LED blackboard lamp includes an installation rod 1, a lamp body 2 installed below the installation rod 1, a light source plate 3 and a driving power source 4 installed in the lamp body 2, and end caps 5 installed at two ends of the lamp body 2, wherein the lower surface of the lamp body 2 near the blackboard is in an arc structure, an upper lens 6 and a lower lens 6 are installed in the lamp body 2, the light emitting surfaces of the upper lens and the lower lens face the blackboard, and the light source plate 3 is fixed above the lenses 6; the light emitting surface of the lower lens 6-1 is perpendicular to the light emitting direction of the light source board 3, and the light emitting surface of the upper lens 6-2 is not perpendicular to the light emitting direction of the light source board 3; a grating 7 consisting of a plurality of grating plates 7-1 is further installed in the lamp body 2, the outer edges of the grating plates 7-1 are flush, the inner edges are stepped, the edges of the steps are respectively positioned at the front ends of the upper lens 6 and the lower lens 6, and the deflection direction of the grating plates 7-1 is parallel to the light emergent direction of the upper lens 6-2; the grating 7 is installed in the lamp body 2 through grating installation grooves 8 located at the upper and lower ends of the lamp body 2.
The distance between the adjacent grating plates 7-1 is 30-50 mm.
The vertical distance between the front end of the upper lens 6-2 and the outer edge of the grating plate 7-1 is 20-30 mm.
The included angle between the light-emitting surface of the upper lens 6-2 and the light-emitting direction of the light source plate 3 is 35-65 degrees.
The mounting rod 1 is rotatably mounted on the upper surface of the lamp body 2. The upper surface of the lamp body 2 is provided with an installation clamping groove 9, and the lower end of the installation rod 1 is rotatably connected with a connecting piece 10 fixed in the installation clamping groove 8.
The length of the mounting rod 1 is adjustable. The mounting rod 1 comprises a telescopic rod 1-1 and a loop bar 1-2 sleeved outside the telescopic rod 1-1, and the length of the mounting rod 1 is adjusted by adjusting the length of the telescopic rod 1-2 sleeved in the loop bar 1-2.
A power protection sleeve 11 is further installed on one side of the lamp body 2, and the driving power source 4 is installed on the power protection sleeve 11.
The utility model discloses an install two upper and lower lens 6 that the play plain noodles is towards the blackboard in the lamp body 2, wherein the play plain noodles of lower lens 6-1 is perpendicular with the light direction of shooting out of light source board 3, the play plain noodles of upper lens 6-2 is not perpendicular with the light direction of shooting out of light source board 3, and concrete contained angle is 35-65, carries out optics level through upper lens 6-2 and handles, makes light all down, improves the degree of consistency, improves the illuminance on blackboard surface, makes the light of shining on the blackboard even; simultaneously still install the grid 7 of constituteing by a plurality of grid plates 7-1 in the lamp body 2, the outward flange of grid plate 7-1 is for flushing, the inward flange is the echelonment, and the edge of ladder is located respectively the front end of upper and lower lens, just grid plate 7-1 the direction of deflection with the light-emitting direction of upper lens 6-2 is parallel, and through reasonable setting up distance between the adjacent grid plate 7-1 and upper lens 6-2 front end with the perpendicular distance of grid plate 7-1 outward flange makes the light distribution that provides the refraction of the upper lens 6-2 of blackboard main illumination more even, prevents the glare when guaranteeing the illuminance on blackboard surface.
The utility model discloses a lower surface at the 2 backs of lamp body is the arc structure, more conveniently adjusts blackboard lamp's the angle of shining, and passes through lens 6-2 supplements the light of arcwall face down, the warp further improve the degree of consistency behind grid plate 7-1, prevent the glare when improving blackboard surface illuminance.
The utility model discloses a 1 adjustable length of installation pole, and rotatable the installing height and the position of adjustable blackboard lamp in 2 upper surfaces of lamp body, guarantee the reasonable of perpendicular illuminance, the mounted position is suitable.
The above description is illustrative and not restrictive. Many modifications and variations of the present invention will be apparent to those skilled in the art in light of the above teachings, which will fall within the spirit and scope of the invention.
Claims (10)
1. An anti-dazzle LED blackboard lamp comprises an installation rod, a lamp body arranged below the installation rod, a light source plate and a driving power supply which are arranged in the lamp body, and end covers arranged at two ends of the lamp body, and is characterized in that an upper lens and a lower lens, of which the light emitting surfaces face a blackboard, are arranged in the lamp body, and the light source plate is fixed above the lenses; the light emitting surface of the lower lens is vertical to the light emitting direction of the light source plate, and the light emitting surface of the upper lens is not vertical to the light emitting direction of the light source plate; the lamp body is also internally provided with a grating consisting of a plurality of grating plates, the outer edges of the grating plates are flush, the inner edges of the grating plates are in a step shape, the edges of the steps are respectively positioned at the front ends of the upper lens and the lower lens, and the deflection direction of the grating plates is parallel to the light emergent direction of the upper lens.
2. The anti-glare LED blackboard lamp according to claim 1, wherein the distance between the adjacent grating plates is 30-50 mm.
3. The anti-glare LED blackboard lamp according to claim 1, wherein the vertical distance between the front end of the upper lens and the outer edge of the grid plate is 20-30 mm.
4. The anti-glare LED blackboard lamp according to claim 1, wherein an included angle between the light emitting surface of the upper lens and the light emitting direction of the light source plate is 35-65 °.
5. The anti-glare LED blackboard lamp according to claim 1, wherein the lower surface of the back surface of the lamp body has an arc-shaped structure.
6. The anti-glare LED blackboard lamp according to claim 1, wherein the grating is installed in the lamp body through grating installation grooves at upper and lower ends of the lamp body.
7. The anti-glare LED blackboard lamp according to claim 1, wherein the mounting rod is rotatably mounted on the upper surface of the lamp body.
8. The anti-glare LED blackboard lamp according to claim 7, wherein a mounting slot is formed on the upper surface of the lamp body, and the lower end of the mounting rod is rotatably connected with a connecting piece fixed in the mounting slot.
9. The anti-glare LED blackboard lamp according to claim 1, wherein the length of the mounting rod is adjustable.
10. The anti-glare LED blackboard lamp according to claim 9, wherein the mounting rod comprises a telescopic rod and a sleeve rod sleeved outside the telescopic rod, and the length of the mounting rod is adjusted by adjusting the length of the telescopic rod sleeved in the sleeve rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020991687.0U CN211925565U (en) | 2020-06-03 | 2020-06-03 | Anti-dazzle LED blackboard lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020991687.0U CN211925565U (en) | 2020-06-03 | 2020-06-03 | Anti-dazzle LED blackboard lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211925565U true CN211925565U (en) | 2020-11-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020991687.0U Active CN211925565U (en) | 2020-06-03 | 2020-06-03 | Anti-dazzle LED blackboard lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211925565U (en) |
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2020
- 2020-06-03 CN CN202020991687.0U patent/CN211925565U/en active Active
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