CN216591232U

CN216591232U - LED blackboard lamp

Info

Publication number: CN216591232U
Application number: CN202122535876.4U
Authority: CN
Inventors: 李忠凯
Original assignee: Beijing Hehong Jiongyuan Lighting Technology Co ltd
Current assignee: Beijing Hehong Jiongyuan Lighting Technology Co ltd
Priority date: 2021-10-21
Filing date: 2021-10-21
Publication date: 2022-05-24
Anticipated expiration: 2031-10-21

Abstract

The utility model provides an LED blackboard lamp, which relates to the technical field of lighting devices and comprises a blackboard body and an LED lampshade, wherein short overhead rods are vertically arranged at the top of the blackboard body close to the edges of two sides, one end of each short overhead rod is vertically provided with a short abdicating rod, one end of each short abdicating rod is vertically provided with a telescopic connecting rod, connecting blocks are arranged at the top of the LED lampshade close to the edges of two sides, the two connecting blocks are connected with the telescopic connecting rods through a rotating shaft, elastic knobs are respectively arranged at the centers of the two connecting blocks on the opposite sides, and one ends of the inner axes of the two elastic knobs are in contact with one ends of the rotating shaft. According to the utility model, the relative height of the LED lampshade and the included angle between the LED lampshade and the blackboard body can be adjusted by mutually matching the telescopic connecting rod and the connecting block, so that the device can adjust the irradiation angle of the LED lamp panel according to actual conditions, the influence of light reflection on blackboard viewing is reduced, and the practicability of the device is increased.

Description

LED blackboard lamp

Technical Field

The utility model relates to the technical field of lighting devices, in particular to an LED blackboard lamp.

Background

The LED lamp is an electroluminescent semiconductor material chip, is solidified on the bracket by using silver glue or white glue, is connected with the chip and the circuit board by using silver wires or gold wires, is sealed by epoxy resin at the periphery to play a role of protecting an internal core wire, and is finally provided with the shell, so the anti-seismic performance of the LED lamp is good, and the LED lamp is applied to various life scenes along with the development of the technology.

However, in the prior art, most of the existing LED lamps are fixed around the blackboard in the application of the special illumination for the blackboard, and cannot be adjusted, and the diffuse reflection generated on the surface of the blackboard gradually tends to the mirror reflection along with the continuous friction on the surface of the blackboard in the using process, so that the directionality of light is enhanced, and due to the mirror reflection, the observation of the blackboard in a certain angle is difficult, and certain influence is exerted on the sight line.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and provides an LED blackboard lamp, which enables the direction of specular reflection to be adjusted by finely adjusting the irradiation angle and the relative height of irradiation of the LED lamp, reduces the influence of light on blackboard observation and increases the practicability of the device.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a LED blackboard lamp, includes blackboard body and LED lamp shade, the top of blackboard body is close to both sides edge and all is provided with the short rod that elevates perpendicularly, two the one end of the short rod that elevates all is provided with the short rod that steps down perpendicularly, two the one end of the short rod that steps down all is provided with flexible connecting rod perpendicularly, the top of LED lamp shade is close to both sides edge and all is provided with the connecting block, two connect through the pivot between connecting block and the flexible connecting rod, two the back of the body one side center department of mutually the same side of connecting block all is provided with elasticity knob, two the inside axle center one end of elasticity knob contacts with the one end of pivot.

As a preferred embodiment, the bottom one end of LED lamp shade is provided with first fixed block, mounting groove has been seted up to one side of first fixed block, inside one side of mounting groove is provided with the spacing ring, the inside opposite side of first fixed block is close to front surface and rear surface edge and all is provided with expanding spring perpendicularly.

As a preferred embodiment, a movable connecting plate is arranged between one ends of the two extension springs, and an outer wall of the movable connecting plate and an inner side wall of the first fixing block slide with each other.

As a preferred embodiment, the other end of the bottom of the LED lamp shade is provided with a second fixing block, and one side of the second fixing block is provided with a fixing connection plate.

As a preferred embodiment, the LED lamp panel is clamped between the connecting ends of the movable connecting plate and the fixed connecting plate.

In a preferred embodiment, an arc lampshade is arranged at the edge of the front surface of the bottom of the LED lampshade.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. according to the utility model, the telescopic connecting rod can control the relative height of the LED lampshade through telescoping, the connecting block is connected with the telescopic connecting rod through the rotating shaft, so that the angle of the LED lampshade can be adjusted, the tightness degree of connection between the telescopic connecting rod and the connecting block can be adjusted by rotating the tightness knob, and the relative height of the LED lampshade and the included angle between the telescopic connecting rod and the connecting block and the blackboard body can be adjusted by mutually matching the telescopic connecting rod and the connecting block, so that the device can adjust the irradiation angle of the LED lamp panel according to the actual condition, the influence of light reflection on the blackboard viewing is reduced, and the practicability of the device is improved.

2. According to the LED lamp panel, due to the structural characteristics of the telescopic springs, the movable connecting plate and the fixed connecting plate are clamped and combined to mount the LED lamp panel in the mounting groove, and the LED lamp panel is high in replacement efficiency.

Drawings

FIG. 1 is a front perspective view of an LED blackboard lamp according to the present invention;

FIG. 2 is a bottom perspective view of an LED blackboard light according to the present invention;

FIG. 3 is a sectional view of a first fixing block of an LED blackboard lamp according to the present invention;

FIG. 4 is an enlarged view of the second fixing block of the LED blackboard lamp according to the present invention.

Illustration of the drawings:

1. a blackboard body; 2. an LED lamp shade; 11. erecting a short rod; 12. a short abdicating rod; 13. a telescopic connecting rod; 21. connecting blocks; 22. tightening and loosening the knob; 3. a first fixed block; 31. installing a groove; 32. a limiting ring; 33. a tension spring; 34. a movable connecting plate; 4. a second fixed block; 41. fixing the connecting plate; 5. an LED lamp panel; 23. arc lamp shade.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1 to 4, the present invention provides a technical solution: the utility model provides a LED blackboard lamp, including blackboard body 1 and LED lamp shade 2, blackboard body 1's top is close to both sides edge and all is provided with perpendicular short rod 11 that raises, the one end of two short rod 11 that raises all is provided with short rod 12 that steps down perpendicularly, the one end of two short rod 12 that steps down all is provided with telescopic link 13 perpendicularly, LED lamp shade 2's top is close to both sides edge and all is provided with connecting block 21, connect through the pivot between two connecting block 21 and the telescopic link 13, the back of the body one side center department of mutually backing on the back of the body of two connecting block 21 all is provided with elasticity knob 22, the inside axle center one end of two elasticity knobs 22 contacts with the one end of pivot, LED lamp shade 2's bottom one end is provided with first fixed block 3, mounting groove 31 has been seted up to one side of first fixed block 3, inside one side of mounting groove 31 is provided with spacing ring 32, the inside opposite side of first fixed block 3 is close to front surface and rear surface edge all is provided with expanding spring 33 perpendicularly.

In this embodiment, the short rod 11 is vertically disposed on the top of the blackboard body 1, the short rod 12 is vertically connected to the short rod 11, the short rod 11 and the short rod 12 cooperate with each other to raise and raise the position of the LED lampshade 2 relative to the blackboard body 1, thereby increasing the irradiation range of the LED lamp panel 5 in the LED lampshade 2 to the blackboard body 1, the connecting block 21 on the LED lampshade 2 is connected to the short rod 12 through the telescopic link 13, the telescopic link 13 can control the relative height of the LED lampshade 2 through extension, the connecting block 21 is connected to the telescopic link 13 through a rotating shaft, so that the angle of the LED lampshade 2 can be adjusted, the tightness degree of the connection between the telescopic link 13 and the connecting block 21 can be adjusted by rotating the tightening knob 22, the telescopic link 13 and the connecting block 21 cooperate with each other to adjust the relative height of the LED lampshade 2 and the included angle of the blackboard body 1, thereby make the device can adjust the angle of illumination of LED lamp plate 5 according to actual conditions to reduce the influence of watching the blackboard by the light reflection, increase the device practicality, mutually support through first

fixed block

3 and 4 inner structure of second fixed block on LED lamp shade 2 and install LED lamp plate 5.

Example 2

As shown in fig. 1-4, a movable connecting plate 34 is arranged between one end of each of the two extension springs 33, an outer surface wall of the movable connecting plate 34 slides relative to an inner side wall of the first fixing block 3, a second fixing block 4 is arranged at the other end of the bottom of the LED lampshade 2, a fixing connecting plate 41 is arranged on one side of the second fixing block 4, an LED lamp panel 5 is clamped between the connecting ends of the movable connecting plate 34 and the fixing connecting plate 41, and an arc lampshade 23 is arranged at the edge of the front surface of the bottom of the LED lampshade 2.

In this embodiment, inside mounting groove 31 because of the structural characteristic of expanding spring 33 self, when making between swing joint board 34 and the fixed connection board 41 install LED lamp plate 5 through the mode of card sum, have higher change efficiency, the position of swing joint board 34 is restricted in the setting of spacing ring 32, makes the self light of LED lamp plate 5 can not produce the influence to the observer in blackboard body 1 the place ahead through setting up arc lampshade 23, improves the device practicality.

The working principle of the embodiment is as follows:

as shown in fig. 1-4, the short rod 11 is vertically arranged on the top of the blackboard body 1, the short rod 12 is vertically connected with the short rod 11, the short rod 11 and the short rod 12 cooperate with each other to raise and far the position of the LED lampshade 2 relative to the blackboard body 1, the irradiation range of the LED lamp panel 5 in the LED lampshade 2 to the blackboard body 1 is increased, the tightness degree of the connection between the telescopic link 13 and the connecting block 21 can be adjusted by rotating the tightening knob 22, the LED lamp panel 5 is mounted on the LED lampshade 2 by the mutual cooperation of the internal structures of the first fixing block 3 and the second fixing block 4, the mounting groove 31 has higher replacement efficiency due to the structural characteristics of the telescopic spring 33, when the LED lamp panel 5 is mounted between the movable connecting plate 34 and the fixed connecting plate 41 by the clamping manner, the position of the movable connecting plate 34 is limited by the position of the limiting ring 32, the self light of the LED lamp panel 5 can not influence the observer in front of the blackboard body 1 by arranging the arc lampshade 23.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes, without departing from the technical spirit of the present invention, and any simple modification, equivalent change and change made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the technical spirit of the present invention.

Claims

1. The utility model provides a LED blackboard lamp, includes blackboard body (1) and LED lamp shade (2), its characterized in that: the top of blackboard body (1) is close to both sides edge and all is provided with perpendicular short rod of elevating (11), two the one end of the short rod of elevating (11) all is provided with perpendicularly and steps down short rod (12), two the one end of stepping down short rod (12) all is provided with telescopic connecting rod (13) perpendicularly, the top of LED lamp shade (2) is close to both sides edge and all is provided with connecting block (21), two connect through the pivot between connecting block (21) and telescopic connecting rod (13), two the back of the body one side center department of mutually the same side of connecting block (21) all is provided with elasticity knob (22), two the inside axle center one end of elasticity knob (22) contacts with the one end of pivot.

2. The LED blackboard lamp of claim 1, wherein: the LED lamp shade is characterized in that a first fixing block (3) is arranged at one end of the bottom of the LED lamp shade (2), a mounting groove (31) is formed in one side of the first fixing block (3), a limiting ring (32) is arranged on one side of the inside of the mounting groove (31), and an expansion spring (33) is perpendicularly arranged on the edge of the inner opposite side, close to the front surface and the rear surface, of the first fixing block (3).

3. The LED blackboard lamp of claim 2, wherein: a movable connecting plate (34) is arranged between one ends of the two extension springs (33), and the outer wall of the movable connecting plate (34) and the inner side wall of the first fixing block (3) slide mutually.

4. The LED blackboard lamp of claim 1, wherein: the LED lamp shade is characterized in that a second fixing block (4) is arranged at the other end of the bottom of the LED lamp shade (2), and a fixing connecting plate (41) is arranged on one side of the second fixing block (4).

5. The LED blackboard lamp of claim 3, wherein: and the LED lamp panel (5) is clamped between the connecting ends of the movable connecting plate (34) and the fixed connecting plate (41).

6. The LED blackboard lamp of claim 1, wherein: the LED lamp shade is characterized in that an arc-shaped lamp shade (23) is arranged at the edge of the front surface of the bottom of the LED lamp shade (2).