CN214094163U - Anti-dazzle LED blackboard lamp with adjustable irradiation angle - Google Patents

Abstract

The utility model relates to a lamps and lanterns illumination field, an anti-dazzle mesh LED blackboard lamp of shining angle adjustable, including lamp support, LED lamp strip and lens, its characterized in that: the lamp support comprises an upper shell and upper end covers arranged at two ends of the upper shell, the angle adjusting assembly comprises a lower shell and lower end covers arranged at two ends of the lower shell, an LED lamp strip, a lens and an anti-dazzle grid are sequentially arranged in the lower shell downwards, the upper shell and the lower shell are connected in a clamping mode and are fixedly connected with the upper end cover and the lower end cover respectively, and the angle adjusting assembly can adjust a rotating angle relative to the lamp support and is fixedly connected onto the lamp support through a connecting piece. The utility model discloses avoided the teacher to receive the glare influence in C0/180 orientation, do benefit to teacher's vision comfort level, easily installation and debugging has shortened installation and debugging's time to can also be according to the individualized irradiation range of adjusting light of actual conditions.

Description

Anti-dazzle LED blackboard lamp with adjustable irradiation angle

Technical Field

The utility model relates to a lamps and lanterns illumination field especially relates to an anti-dazzle mesh LED blackboard lamp of shining angle adjustable.

Background

In daily teaching, the blackboard is the most main operation area for teachers and students to communicate and interact, so that the illumination of the blackboard is particularly important, and the concentration degree and the visual comfort degree of teachers and students are directly influenced. At present, an LED blackboard lamp is mostly adopted in a classroom to provide illumination for a blackboard surface, the blackboard lamp is generally arranged above the blackboard in an inclined mode, and the problem of glare of different degrees in illumination is prevented on the premise that the illumination and the uniformity of the illumination of the blackboard surface are guaranteed.

The No. CN204986739U, chinese patent publication No. 2016, 1, 20 discloses a blackboard LED lamp, which includes an LED light source and a lens, the cross section of the lens is a quadrilateral structure, after light emitted from the LED light source enters the incident surface of the lens, a part of the light is reflected by the reflecting surface on one side and refracted by the first exit surface, and then exits, and a part of the light is refracted by the second exit surface on the other side and then exits, so that the light deflects to one side of the lens, and polarized light irradiation of the LED blackboard lamp is realized.

The LED blackboard lamp sold in the market at present basically adopts the design of an aluminum profile and a polarizing lens, an LED light source intensively refracts light on a blackboard surface through the polarizing lens, wherein a C0/180 surface adopts a large-angle symmetrical light design, and a C90/270 surface adopts a small-angle polarizing design. In the prior art, the problems of glare of different degrees commonly exist in the lighting of an LED blackboard lamp, and the main reason is that the C0/180 surface adopts a large-angle symmetrical light design to enable a large amount of light to directly irradiate the visual field of a teacher, so that the glare is generated to the teacher, and the teacher is in the environment for a long time, so that the visual fatigue is easily caused, the development of teaching activities is not facilitated, and the health condition of eyes of the teacher is damaged; the secondary reasons are that the blackboard lamp has low adaptability to the installation environment, is not easy to debug according to the actual environment of the field to reduce the glare influence, and the blackboard sizes of different classrooms of different schools are different, so that the installation environment is different, and after the LED blackboard lamp is installed according to the design size, the illumination area of the blackboard lamp is not easy to debug individually according to the actual condition to ensure the illumination and the uniformity of the blackboard surface and avoid the glare influence.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides an shine anti-dazzle mesh LED blackboard lamp of angularly adjustable, easily installation and debugging avoids producing the glare to the mr under the prerequisite of the homogeneity of guaranteeing illuminance and illuminance.

The utility model discloses a concrete technical scheme does: the utility model provides an shine anti-dazzle mesh LED blackboard lamp of angularly adjustable, includes lamp support, LED lamp strip and lens, its characterized in that: the lamp support comprises an upper shell and upper end covers arranged at two ends of the upper shell, the angle adjusting assembly comprises a lower shell and lower end covers arranged at two ends of the lower shell, an LED lamp strip, a lens and an anti-dazzle grid are sequentially arranged in the lower shell downwards, the upper shell and the lower shell are connected in a clamping mode and are fixedly connected with the upper end cover and the lower end cover respectively, and the angle adjusting assembly can adjust a rotating angle relative to the lamp support and is fixedly connected onto the lamp support through a connecting piece.

Light rays emitted by the LED lamp strips are processed by the lens and then irradiate the blackboard surface, so that the illumination of the writing surface of the blackboard and the uniformity of the illumination can be ensured; when the projection area of light rays emitted by the LED blackboard lamp needs to be adjusted in an individualized manner according to actual conditions, the angle adjusting screw is unscrewed, the angle adjusting assembly is rotated, namely the rotation angle of the lower end cover is adjusted, the lower end cover drives the lower shell to rotate, so that the direction of an opening formed by the lower shell and the lower end cover is changed, the light emitting direction of the light rays, which irradiate the blackboard surface through the opening, of the LED blackboard lamp on a C90/270 surface can be adjusted, the angle adjusting screw can be screwed up after the angle adjusting screw is adjusted in an individualized manner until the C90/270 surface has no glare influence, and the angle adjusting assembly and the lamp support are fixed.

Preferably, the upper end cover of the lamp bracket is fixedly connected with the lower end cover of the angle adjusting component through angle adjusting screws.

The angle adjusting screw is screwed open, and the relative rotation angle between the angle adjusting component and the lamp bracket can be adjusted; the angle adjusting screw is screwed tightly, and the angle adjusting component can be fixedly connected with the lamp bracket at a proper rotating angle.

Preferably, the anti-dazzle grid consists of grid pieces, and the grid pieces are arranged in parallel with the lower end cover and are uniformly arranged along the long direction of the lens.

The arrangement of the grid pieces prevents a large amount of light from directly irradiating the visual field of the teacher and prevents the LED blackboard lamp from dazzling the teacher in the C0/180 direction.

Preferably, the lower case includes a first lower case and a second lower case, the first lower case and the second lower case are both curved surfaces bent inward, and a height of the second lower case is greater than a height of the first lower case.

The structure of the lower shell can collect the light of the LED blackboard lamp to the maximum extent, so that the light is projected into the blackboard surface, and the second lower shell has a certain height and can shield the light emitted backwards by the LED blackboard lamp, so that glare to students in the back row of a classroom is avoided.

Preferably, the lower case and the lower end cap form an opening facing the blackboard surface.

The opening can limit the light emitting direction of the LED blackboard lamp, the angle adjusting component rotates, and the projection area of light rays emitted by the LED blackboard lamp can be adjusted by rotating the opening.

Preferably, the shape of the grid sheet is a right triangle, and the hypotenuse faces the opening formed by the lower shell and the lower end cover.

The shape and the position of the grid pieces are arranged, so that the grid pieces are ensured to play an anti-dazzle role, and the loss of the brightness of the LED blackboard lamp on the C0/180 surface is avoided.

Preferably, the grid pieces are made of galvanized plates.

The galvanized sheet is easy to process, and has excellent heat resistance, corrosion resistance and long service life.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) due to the arrangement of the grid pieces, the LED blackboard lamp has no obvious visual glare on the C0/180 surface, the teacher is ensured not to be influenced by the glare in the C0/180 direction, and the visual comfort of the teacher is facilitated;

(2) the irradiation range of light can be adjusted in a personalized manner according to the actual situation of the scene, so that the influence of glare generated by the LED blackboard lamp on the C90/270 surface is reduced, and the illumination effect of the writing surface is further optimized;

(3) the installation and debugging are easy, the installation and debugging time can be shortened, and the installation and debugging cost is reduced.

Drawings

Fig. 1 is a schematic exploded view of the present invention;

fig. 2 is a schematic side view of the present invention;

fig. 3 is a side view of the present invention.

The reference signs are: 1. an upper housing; 2. a lower housing; 2-1, a first lower shell; 2-2, a second lower shell; 3. an upper end cover; 4. a lower end cover; 5. an LED light bar; 6. a lens; 7. an anti-glare grid; 8. a grating sheet; 9. angle modulation screw.

Detailed Description

The present invention will be further described with reference to the following examples. The devices, connections, and methods referred to in this disclosure are those known in the art, unless otherwise indicated.

Example 1

As shown in fig. 1: the utility model provides an shine anti-dazzle mesh LED blackboard lamp of angularly adjustable, includes lamp support, LED lamp strip 5 and lens 6, its characterized in that: the lamp support comprises an upper shell 1 and upper end covers 3 arranged at two ends of the upper shell 1, the angle adjusting assembly comprises a lower shell 2 and lower end covers 4 arranged at two ends of the lower shell 2, an LED lamp strip 5, a lens 6 and an anti-dazzle grid 7 are sequentially arranged in the lower shell 2 downwards, the upper shell 1 and the lower shell 2 are connected in a clamping mode and are fixedly connected with the upper end covers 3 and the lower end covers 4 respectively, and the angle adjusting assembly can adjust the rotating angle relative to the lamp support and is fixedly connected onto the lamp support through a connecting piece.

The upper end cover 3 of the lamp bracket is fixedly connected with the lower end cover 4 of the angle adjusting component through an angle adjusting screw 9, the angle adjusting screw 9 is unscrewed, the relative rotation angle between the angle adjusting component and the lamp bracket can be adjusted, the angle adjusting screw 9 is screwed, and the angle adjusting component can be fixedly connected with the lamp bracket at a proper rotation angle; the lower shell 2 comprises a first lower shell 2-1 and a second lower shell 2-2, the first lower shell 2-1 and the second lower shell 2-2 are both curved surfaces which are bent inwards, the height of the second lower shell 2-2 is greater than that of the first lower shell 2-1, the lower shell 2 and the lower end cover 4 form an opening facing a blackboard surface, the angle adjusting component rotates, the opening rotates, and the projection area of light rays emitted by the LED blackboard lamp changes accordingly; the anti-dazzle grille 7 is composed of grille pieces 8, the grille pieces 8 are arranged in parallel with the lower end cover 4 and are uniformly arranged along the long strip direction of the lens 6, the grille pieces 8 are right-angled triangles, the inclined sides of the grille pieces face the opening formed by the lower shell 2 and the lower end cover 4, and the arrangement of the grille pieces 8 prevents the LED blackboard lamps from dazzling teachers in the C0/180 direction; the grating sheet 8 is made of a galvanized plate, the grating sheet 8 is formed by laser cutting and sheet metal process technology, and the surface is treated by an electrostatic plastic spraying process.

Light rays emitted by the LED lamp strips are processed by the lens 6 and then irradiate the blackboard surface, so that the illumination of the writing surface of the blackboard and the uniformity of the illumination can be ensured; when the projection area of the light emitted by the LED blackboard lamp needs to be adjusted individually according to actual conditions, the angle adjusting screw 9 is unscrewed, the angle adjusting assembly is rotated, namely, the rotation angle of the lower end cover 4 is adjusted, the lower end cover 4 drives the lower shell 2 to rotate, so that the direction of an opening formed by the lower shell 2 and the lower end cover 4 is changed, the light emitting direction of the light, which irradiates the blackboard surface through the opening, of the LED blackboard lamp on a C90/270 surface can be adjusted, the angle adjusting screw 9 can be screwed and the angle adjusting assembly and the lamp support can be fixed after the angle adjusting screw 9 is adjusted individually to be free from glare influence on the C90/270 surface.

It should be noted that when the LED blackboard lamp is installed and debugged, the angle adjusting assembly can be adjusted to an optimal angle after the LED blackboard lamp is installed according to the design size, so as to ensure good blackboard surface illumination and uniformity of illumination and avoid dazzling a teacher; in addition, the heights of the teachers are different, when the difference is large, the teachers can adjust the projection area of the LED blackboard lamp through the angle adjusting assembly in an individualized mode, dazzling is avoided, the operation method is simple, and adjustment is facilitated.

The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and equivalent structure transform of doing to above embodiment the utility model discloses technical scheme's protection scope.

Claims (7)

1. The utility model provides an shine anti-dazzle mesh LED blackboard lamp of angularly adjustable, includes lamp support, LED lamp strip (5) and lens (6), its characterized in that: the lamp support comprises an upper shell (1) and upper end covers (3) arranged at two ends of the upper shell (1), the angle adjusting assembly comprises a lower shell (2) and lower end covers (4) arranged at two ends of the lower shell (2), an LED lamp strip (5), a lens (6) and the anti-dazzle grids (7) are sequentially arranged in the lower shell (2) downwards, the upper shell (1) and the lower shell (2) are connected in a clamping mode and are fixedly connected with the upper end covers (3) and the lower end covers (4) respectively, and the angle adjusting assembly can adjust the rotating angle relative to the lamp support and is fixedly connected onto the lamp support through a connecting piece.

2. The anti-glare LED blackboard lamp with adjustable irradiation angle according to claim 1, wherein the upper end cover (3) of the lamp bracket is fixedly connected with the lower end cover (4) of the angle adjusting assembly through a connecting piece.

3. The anti-glare LED blackboard lamp with adjustable irradiation angle according to claim 1, wherein the anti-glare grille (7) is composed of grille pieces (8), the grille pieces (8) are arranged in parallel with the lower end cover (4) and are uniformly arranged along the long strip direction of the lens (6).

4. The anti-glare LED blackboard lamp with adjustable irradiation angle according to claim 3, wherein the lower case (2) includes a first lower case (2-1) and a second lower case (2-2), the first lower case (2-1) and the second lower case (2-2) are both curved surfaces bent inward, and the height of the second lower case (2-2) is greater than that of the first lower case (2-1).

5. The anti-glare LED blackboard lamp with adjustable irradiation angle according to claim 4, wherein the lower casing (2) and the lower end cap (4) form an opening facing the blackboard surface.

6. The anti-glare LED blackboard lamp with adjustable irradiation angle according to claim 5, wherein the grid pieces (8) are in the shape of right triangles, and the hypotenuses face the opening formed by the lower casing (2) and the lower end cap (4).

7. The anti-glare LED blackboard lamp with adjustable irradiation angle of claim 3, wherein the grid pieces (8) are made of galvanized sheet.

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