CN214147640U

CN214147640U - Vertical reflection type one-way light distribution writing lamp

Info

Publication number: CN214147640U
Application number: CN202022957661.7U
Authority: CN
Inventors: 何启鹏; 夏文友
Original assignee: Hubei Qishiming Technology Co ltd
Current assignee: Hubei Qishiming Technology Co ltd
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-09-07
Anticipated expiration: 2030-12-09

Abstract

The utility model discloses an one-way grading writing lamp of vertical reflection formula, including jib, fixed rotating shaft, diffuser plate, spout, installation piece, stopper, reflect meter, clipboard lamp light mouth, first order reflected light, second grade reflected light, third level reflected light and LED paster light source, two fixed rotating shafts of lower extreme fixed connection of two jibs, two fixed rotating shafts are sliding connection respectively in two spouts that the diffuser plate upper surface was seted up, and diffuser plate both sides limit is through installing piece fixed connection reflect meter, compares with prior art, the beneficial effects of the utility model are that: according to the technology, the light source of the writing board lamp is adopted for vertical irradiation and the diffusion plate is additionally arranged, the uniformity of high irradiation rate and vertical irradiation light is realized, the illuminance uniformity of the writing board is improved and the glare problem caused by the strong light at the light outlet is effectively solved through the three-level reflecting device and the optimal reflection radian design, and the problems that the light source of the traditional blackboard lamp is exposed, and the side light-emitting efficiency is low are solved.

Description

Vertical reflection type one-way light distribution writing lamp

Technical Field

The utility model relates to a LED illumination field specifically is a lamp is write to one-way grading of vertical reflection formula.

Background

In recent years, the myopia rate of teenagers and children in China is continuously increased, the high attention of the whole society on the vision health of the teenagers is aroused, poor light in classroom is one of the main causes of myopia of students, especially, the lighting of the writing board has double effects on reading of students and teaching of teachers, if the lighting of the writing board lamp is improper, the vision of students and teachers can be damaged, in recent years, the design of the writing board lighting and the writing board in society is gradually emphasized, but due to the specialty and complexity of tablet light fixtures, the tablet light fixtures in the current market present serious problems for teachers, for example, the blackboard light patent of patent No. 201920752082.3, where the light source is exposed without a diffuser plate and directly illuminates the reflector, the light from the light outlet is stronger, thereby generating glare to teachers, and an anti-glare blackboard lamp of patent No. 201921535314.6 has a too narrow light outlet to cause glare.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a vertical reflection formula one-way grading writing lamp to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a vertical reflection formula one-way grading writing lamp, includes jib, fixed pivot, diffuser plate, spout, installation piece, stopper, reflect meter, writing board lamp light mouth, first order reflected light, second level reflected light, third level reflected light and LED paster light source, two fixed pivots of lower extreme fixed connection of two jibs, two fixed pivots are sliding connection respectively in two spouts that the diffuser plate upper surface was seted up, and diffuser plate both sides limit is through installation piece fixed connection reflect meter, and the inboard central point of installation piece puts the fixed connection stopper, and the stopper inserts and is connected to in the spout that the diffuser plate upper surface was seted up, the installation piece.

As a further aspect of the present invention: the shape of the reflecting device is arc-shaped, a light opening of a writing board lamp is formed in the other side face of the reflecting device, three sections of reflecting parts are formed in the inner side of the arc-shaped face of the reflecting device, the three sections of reflecting parts are respectively a first-stage reflecting light ray, a second-stage reflecting light ray and a third-stage reflecting light ray from top to bottom, and a plurality of LED patch light sources are mounted on the upper surface of the inner side of the diffusion plate through an aluminum substrate.

As a further aspect of the present invention: the length of this lamps and lanterns is 1.2M, and the top width is 5.5 CM.

As a further aspect of the present invention: the diffuser plate is 3.5CM away from the LED patch light source.

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

according to the technology, the light source of the writing board lamp is adopted for vertical irradiation and the diffusion plate is additionally arranged, the uniformity of high irradiation rate and vertical irradiation light is realized, the illuminance uniformity of the writing board is improved and the glare problem caused by the strong light at the light outlet is effectively solved through the three-level reflecting device and the optimal reflection radian design, and the problems that the light source of the traditional blackboard lamp is exposed, and the side light-emitting efficiency is low are solved.

Drawings

Fig. 1 is a schematic structural view of a vertical reflection type one-way light distribution writing lamp.

Fig. 2 is a schematic cross-sectional view of a left side view of a vertical reflection type unidirectional light distribution writing lamp.

Fig. 3 is a schematic structural diagram of a mounting block in a vertical reflection type one-way light distribution writing lamp.

In the figure: jib 1, fixed pivot 2, diffuser plate 3, spout 4, installation piece 5, stopper 6, reflect meter 7, clipboard lamp light mouth 8, first order reflected light 9, second level reflected light 10, third level reflected light 11 and LED paster light source 12.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, in the embodiment of the present invention, a vertical reflection type one-way light distribution writing lamp includes hanging rods 1, fixed rotating shafts 2, a diffusion plate 3, sliding grooves 4, mounting blocks 5, limiting blocks 6, a reflection device 7, a writing board lamp light opening 8, a first-level reflected light 9, a second-level reflected light 10, a third-level reflected light 11 and an LED patch light source 12, wherein the lower ends of the two hanging rods 1 are fixedly connected with the two fixed rotating shafts 2, the two fixed rotating shafts 2 are respectively slidably connected in the two sliding grooves 4 formed on the upper surface of the diffusion plate 3, a lamp is arranged inside the diffusion plate 3, the length of the lamp is 1.2M, the width of the top end is 5.5CM, the two side edges of the diffusion plate 3 are fixedly connected with the reflection device 7 through the mounting blocks 5, the limiting blocks 6 are fixedly connected at the center positions inside the mounting blocks 5, the limiting blocks 6 are inserted into the sliding grooves 4 formed on the upper surface of the diffusion plate 3, the mounting block 5 is shown in fig. 2 and 3: the position is adjusted through the sliding of fixed rotating shaft 2 and the angle of the writing board lamp is conveniently adjusted, the diffusion plate 3 and the reflecting device 7 are connected together through the installation block 5, and the fixed rotating shaft 2 slides out of the sliding groove 4 through the limiting block 6.

The shape of the reflecting device 7 is a side arc, the other side of the reflecting device 7 is provided with a lamp light opening 8 of the writing board, the inner side of the arc surface of the reflecting device 7 is provided with three sections of reflecting parts, the three sections of reflecting parts are respectively a first-stage reflecting light ray 9, a second-stage reflecting light ray 10 and a third-stage reflecting light ray 11 from top to bottom, the upper surface of the inner side of the diffusion plate 3 is provided with a plurality of LED patch light sources 12 through an aluminum substrate, the distance between the diffusion plate 3 and the LED patch light sources 12 is 3.5CM, the bottom end of the radian of a reflecting cover through the reflecting device 7 is consistent with the width of the lamp, so that the vertical light rays uniformly irradiate the first-stage reflecting part, the second-stage reflecting part and the third-stage reflecting part, and the light is uniformly reflected to the writing board through the reflecting device 7.

The mounting block 5 links together diffuser plate 3 and reflect meter 7 and prevents 2 roll-off spouts 4 of fixed pivot, thereby realize the clipboard uniform lighting with light uniform reflection to the clipboard through reflect meter 7, reflect meter 7 passes through the geometric design thinking, lamps and lanterns width 5.5CM, light-emitting opening 10CM, so the radian of reflect meter 7 is width 5.5CM and the right triangle drawing arc that light-emitting opening 10CM length constitutes, 7 radians of this tertiary reflect meter are pi/2 and are equal to 1.57, and carry out the trisection with this radian, constitute tertiary reflection, first order reflection is with light unidirectional reflection to the clipboard upper half, the second level reflection is with light unidirectional reflection to the clipboard mid portion, tertiary reflection is with light unidirectional reflection to the clipboard by the lower part, realize the even clipboard region of shining, improve the clipboard illuminance degree of consistency. Meanwhile, through the geometric design of the reflection mechanism, the optimal reflection radian is realized, and the problem of teacher glare caused by too strong light due to too narrow light outlet is avoided.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A vertical reflection type one-way light distribution writing lamp comprises a hanging rod (1), a fixed rotating shaft (2), a diffusion plate (3), a sliding groove (4), an installation block (5), a limiting block (6), a reflection device (7), a writing board lamp light opening (8), a first-stage reflection light ray (9), a second-stage reflection light ray (10), a third-stage reflection light ray (11) and an LED patch light source (12), the lamp is characterized in that the lower ends of the two hanging rods (1) are fixedly connected with two fixed rotating shafts (2), the two fixed rotating shafts (2) are respectively connected in two sliding grooves (4) formed in the upper surface of a diffusion plate (3) in a sliding mode, a lamp is arranged inside the diffusion plate (3), two side edges of the diffusion plate (3) are fixedly connected with a reflecting device (7) through an installation block (5), a limiting block (6) is fixedly connected to the center of the inner side of the installation block (5), and the limiting block (6) is inserted into the sliding grooves (4) formed in the upper surface of the diffusion plate (3).

2. The vertical reflection type unidirectional light distribution writing lamp according to claim 1, wherein the reflection device (7) is shaped like a side arc, the other side of the reflection device (7) is provided with a light opening (8) of a writing board lamp, the inner side of the arc surface of the reflection device (7) is provided with three reflection parts, the three reflection parts are respectively a first-stage reflection light (9), a second-stage reflection light (10) and a third-stage reflection light (11) from top to bottom, and the upper surface of the inner side of the diffusion plate (3) is provided with a plurality of LED patch light sources (12) through an aluminum substrate.

3. A vertical reflective unidirectional light distribution writing lamp as defined in claim 1, wherein the lamp has a length of 1.2M and a top width of 5.5 CM.

4. A vertical reflective unidirectional light distribution writing lamp as claimed in claim 1, characterized in that the diffusion plate (3) is 3.5CM away from the LED patch light source.