CN219796996U - Eye-protection blackboard lamp capable of being installed in close range - Google Patents
Eye-protection blackboard lamp capable of being installed in close range Download PDFInfo
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- CN219796996U CN219796996U CN202321290667.0U CN202321290667U CN219796996U CN 219796996 U CN219796996 U CN 219796996U CN 202321290667 U CN202321290667 U CN 202321290667U CN 219796996 U CN219796996 U CN 219796996U
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- lens
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- 238000005286 illumination Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 5
- 230000002349 favourable effect Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 description 3
- 239000013307 optical fiber Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- Drawing Aids And Blackboards (AREA)
Abstract
The utility model relates to an eye-protection blackboard lamp capable of being installed at a short distance, which comprises a mounting frame, wherein the mounting frame is inwards and obliquely concavely provided with a mounting groove for mounting a lamp source and a lens, the bottom of the mounting groove is provided with an embedding groove for transversely inserting the lamp source, the open end of the mounting groove is fixedly provided with an angle limiting block for clamping the light emitting side of the lens, the opposite sides of the angle limiting block are respectively provided with a guide limiting groove for transversely inserting the lens, the two ends of the outer side of the mounting groove are respectively protruded with a limiting convex part, limiting grooves for transversely inserting a light shielding plate are respectively formed between the limiting convex parts and the guide blocks, and the light shielding plates are arranged at intervals along the transverse extending direction of the limiting grooves.
Description
Technical Field
The utility model relates to an eye-protection blackboard lamp capable of being installed in a short distance.
Background
In the prior art, a fluorescent tube and a reflecting disc are adopted as a blackboard lamp, light control is inaccurate, dazzling light and local over-bright phenomena (influencing the watching effect of students) are easily generated, and in order to avoid the phenomena, the distance between the blackboard lamp and a blackboard surface is required to be increased so as to obtain relatively soft light.
Another scheme used in the market at present is an LED blackboard lamp, and in order to avoid dazzling light and local over-lighting phenomena, the distance between a light emitting surface of a lamp and a blackboard is generally more than 0.7 meter, light is not accurately controlled in the existing scheme, light is diffused in space to form light pollution, energy waste is formed, especially when the blackboard lamp is far away from the blackboard, a teacher can be located in a position between the blackboard lamp and the blackboard, light of the light is not only projected to the blackboard, but also can be directly incident into eyes of a teacher or a lecturer giving lessons in front of the blackboard, so that extreme discomfort is caused, and the illumination range of the teacher is limited.
Disclosure of Invention
In view of the defects of the prior art, the technical problem to be solved by the utility model is to provide the eye-protection blackboard lamp capable of being installed in a short distance, which has a reasonable structure, is accurate in light control and avoids energy waste caused by light pollution.
In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides an eye protection blackboard lamp that can closely install, includes the mounting bracket, the mounting bracket is inwards concavely equipped with in order to be favorable to installing lamp source and lens's mounting groove, the mounting groove bottom has been seted up and has been supplied the transverse male caulking groove of lamp source, the open end of mounting groove has all been set firmly the angle limiting block that is used for inlay card lens light-emitting side, and the guide limiting groove that supplies the transverse male of lens has all been seted up to this angle limiting block opposite side, the mounting bracket has spacing convex part in the homoenergetic towards the protrusion in mounting groove outside both ends, all form between spacing convex part and the guide block and supply the transverse male spacing groove of light screen, the light screen is arranged along spacing groove transverse extension direction interval.
Further, the mounting frame is integrally formed, the mounting groove is concavely formed upwards from the lower side at a fixed angle, and the horizontal section and the vertical section of the mounting frame extend out of the open end of the mounting groove to limit the illumination range of the blackboard lamp.
Furthermore, the light shielding plates are all fan-like, namely, the inner ends are straight surfaces so as to be propped against the angle limiting block, the outer ends are outwards convex cambered surfaces, and notches which are favorable for being clamped and matched with the limiting convex parts are concavely arranged on two sides of the outer end surfaces.
Further, the lens comprises a light inlet side close to the light source and a light outlet side far away from the light source, and the light inlet side is provided with a light receiving groove matched with the light source inwards.
Further, integrated into one piece has a plurality of transversely extending's fixed pipe in the mounting bracket, and this fixed pipe leads to long setting with the mounting bracket, the horizontal both ends of mounting bracket all are covered and are equipped with the closing cap, the closing cap is from outside inwards locked into fixed pipe and mounting bracket through the screw and is fastened.
Further, the mounting rack top is provided with the hanging groove that is favorable to be fixed with protruding sheet metal component, protruding sheet metal component top end links firmly the peg in order to hang the blackboard lamp.
Compared with the prior art, the utility model has the following beneficial effects: the polarized lens is selected as the lens, the limitation of the horizontal section and the vertical section of the mounting frame and the interval arrangement of the light shielding plates ensure a fixed illumination angle, so that the lens can be mounted at a position close to the blackboard without local excessive brightness and dazzling light, and the optical fiber of the lens can not be shot into eyes of a teacher or a lecturer who gives lessons in front of the blackboard except for projecting the blackboard, thereby improving the teaching environment.
The utility model will be described in further detail with reference to the drawings and the detailed description.
Drawings
FIG. 1 is a schematic view of a construction of an embodiment of the present utility model;
FIG. 2 is a schematic view of a partial explosion of an embodiment of the present utility model;
FIG. 3 is a schematic view of a mounting frame according to an embodiment of the present utility model;
FIG. 4 is a schematic view showing a lens structure according to an embodiment of the present utility model;
FIG. 5 is a schematic view of a mask according to an embodiment of the present utility model;
FIG. 6 is a simulated light distribution curve of a blackboard lamp according to an embodiment of the present utility model;
FIG. 7 is a diagram of a simulated classroom illumination scene for a blackboard lamp in accordance with an embodiment of the present utility model;
fig. 8 is a schematic view of the installation of a blackboard lamp according to an embodiment of the present utility model.
In the figure: 1-mounting frame, 2-lamp source, 3-lens, 4-caulking groove, 5-angle limiting block, 6-guiding limiting groove, 7-limiting convex part, 8-light shielding plate, 9-limiting groove, 10-notch, 11-light inlet side, 12-light outlet side, 13-light receiving groove, 14-fixed pipe, 15-sealing cover, 16-screw, 17-convex sheet metal part, 18-hanging rod, 19-mounting groove and 20-hanging groove.
Detailed Description
In order to make the above features and advantages of the present utility model more comprehensible, embodiments accompanied with figures are described in detail below.
As shown in fig. 1-8, an eye-protection blackboard lamp capable of being installed at a short distance comprises a mounting rack 1, mounting grooves 19 for mounting a lamp source 2 and a lens 3 are concavely arranged inwards and obliquely, the lamp source comprises a circuit board and a plurality of groups of lamps arranged at intervals on the circuit board, embedding grooves 4 for the lamp source to transversely insert are formed in the bottoms of the mounting grooves, the embedding grooves are used for the circuit board to transversely insert and position, angle limiting blocks 5 for clamping the light emitting side of the lens are fixedly arranged at the open ends of the mounting grooves, guiding limiting grooves 6 for the lens to transversely insert are formed at the opposite sides of the two angle limiting blocks, limiting convex parts 7 are protruded outwards at the two ends of the outer side of the mounting grooves of the mounting rack, limiting grooves 9 for the light shielding plates 8 to transversely insert are formed between the limiting convex parts and the guiding blocks, and the light shielding plates are arranged at intervals along the transverse extending directions of the limiting grooves.
In the embodiment of the utility model, the mounting frame is integrally formed, the mounting groove is concavely formed upwards from bottom to top at a fixed angle, the transverse end surface of the mounting frame is in an inverted L shape, and the horizontal section and the vertical section of the mounting frame extend out of the open end of the mounting groove to limit the illumination range of the blackboard lamp.
In the embodiment of the utility model, the lens is designed by adopting a polarized lens, so that the installation distance between the blackboard lamp and the blackboard is shortened greatly, a teacher is positioned behind the luminous surface of the blackboard lamp, and the light of the teacher cannot be directly emitted in the vision range of the teacher, so that the teaching environment is improved.
In the embodiment of the utility model, the light shielding plates are all fan-like, i.e. the inner ends are straight surfaces to be propped against the angle limiting block, the outer ends are convex cambered surfaces, and the two sides of the outer end surfaces are concavely provided with notches 10 which are convenient to be clamped and matched with the limiting convex parts.
In the embodiment of the utility model, the lens comprises a light inlet side 11 close to the light source and a light outlet side 12 far away from the light source, wherein the light inlet side is concavely provided with a light receiving groove 13 matched with the light source towards the lens, and the light receiving groove is arranged corresponding to the position of the lamp.
In the embodiment of the utility model, a plurality of transversely extending fixing pipes 14 are integrally formed in the mounting frame, internal threads are arranged in the end parts of the fixing pipes, the fixing pipes are arranged in a through length manner with the mounting frame, sealing covers 15 are respectively arranged at the transverse two ends of the mounting frame in a covering manner, and the sealing covers are locked into the fixing pipes from outside to inside through screws 16 and fastened with the mounting frame.
In the embodiment of the utility model, a hanging groove 20 which is used for being fixed with the convex sheet metal part 17 is arranged at the top end of the mounting frame, and a hanging rod 18 is fixedly connected at the top end of the convex sheet metal part so as to hang the blackboard lamp.
The working principle of the embodiment of the utility model is as follows: the polarized lens is selected for use by the lens, the limitation of the installation frame horizontal section and the vertical section and the interval arrangement of the light shielding plates ensure a fixed illumination angle, so that the blackboard lamp can be installed at a position close to the blackboard without local excessive brightness and dazzling light (using the secondary light distribution of the transparent environment to change the light shape distribution of the LEDs, so that the LED light shape distribution is uniformly distributed, local excessive brightness cannot occur), and the optical fibers of the LED light shape distribution are not projected into eyes of teachers or teaching persons before the blackboard except the projection blackboard.
The present utility model is not limited to the above-described preferred embodiments, and any person can obtain other various forms of eye-protecting blackboard lamp that can be installed at a short distance under the teaching of the present utility model. All equivalent changes and modifications made according to the claims of the present utility model shall fall within the scope of the present utility model.
Claims (6)
1. An eye-protection blackboard lamp capable of being installed in a short distance is characterized in that: including the mounting bracket, the mounting bracket is inwards concavely equipped with in order to install the mounting groove of lamp source and lens to the slant, the mounting groove bottom has been seted up and has been supplied the transverse male caulking groove of lamp source, the open end of mounting groove has all been set firmly and has been used for the inlay card lens to go out the angle limiting block of light side, and this angle limiting block all has been offered in opposite side and has been supplied the transverse male direction limiting groove of lens, the mounting bracket has spacing convex part in the homoenergetic towards the protrusion in mounting groove outside both ends, all form between spacing convex part and the guide block and supply the transverse male spacing groove of light screen, the light screen is arranged along spacing groove transverse extension direction interval.
2. The eye-shielding blackboard lamp capable of being installed in a short distance according to claim 1, wherein: the mounting frame is integrally formed, the mounting groove is concavely formed upwards from bottom to top at a fixed angle, and the horizontal section and the vertical section of the mounting frame extend out of the open end of the mounting groove to limit the illumination range of the blackboard lamp.
3. The eye-shielding blackboard lamp capable of being installed in a short distance according to claim 1, wherein: the light shielding plates are all fan-like, namely, the inner ends are straight surfaces so as to be propped against the angle limiting block, the outer ends are outwards convex cambered surfaces, and notches which are convenient to clamp and match with the limiting convex parts are concavely formed in two sides of the outer end surfaces.
4. The eye-shielding blackboard lamp capable of being installed in a short distance according to claim 1, wherein: the lens comprises a light inlet side close to the light source and a light outlet side far away from the light source, and the light inlet side is provided with a light receiving groove matched with the light source inwards.
5. The eye-shielding blackboard lamp capable of being installed in a short distance according to claim 1, wherein: the mounting rack is internally provided with a plurality of transversely extending fixed pipes in an integrated manner, the fixed pipes and the mounting rack are arranged in a through length mode, sealing covers are arranged at two transverse ends of the mounting rack in a covering mode, and the sealing covers are locked into the fixed pipes from outside to inside through screws and are fastened with the mounting rack.
6. The eye-shielding blackboard lamp capable of being installed in a short distance according to claim 1, wherein: the mounting rack top is provided with the hanging groove that is favorable to be fixed with protruding sheet metal component, protruding sheet metal component top end links firmly the peg in order to hang the blackboard lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321290667.0U CN219796996U (en) | 2023-05-25 | 2023-05-25 | Eye-protection blackboard lamp capable of being installed in close range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321290667.0U CN219796996U (en) | 2023-05-25 | 2023-05-25 | Eye-protection blackboard lamp capable of being installed in close range |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219796996U true CN219796996U (en) | 2023-10-03 |
Family
ID=88176671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321290667.0U Active CN219796996U (en) | 2023-05-25 | 2023-05-25 | Eye-protection blackboard lamp capable of being installed in close range |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219796996U (en) |
-
2023
- 2023-05-25 CN CN202321290667.0U patent/CN219796996U/en active Active
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