CN213394969U

CN213394969U - Combined LED blackboard lamp

Info

Publication number: CN213394969U
Application number: CN202022938186.9U
Authority: CN
Inventors: 余细华; 陈龙飞
Original assignee: Guangdong Base Lighting Co ltd
Current assignee: Guangdong Base Lighting Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-06-08
Anticipated expiration: 2030-12-10

Abstract

The utility model discloses a combined LED blackboard lamp, which comprises two brackets, wherein a first lifting rope is wound on the lower surfaces of the brackets, and one end of the first lifting rope, which is far away from the brackets, is fixedly connected with a fixed plate; slide the second connecting plate inside the second recess, thereby take place elastic deformation through first connecting plate extrusion spring, then slide the inside of casing with the LED fluorescent tube, then first connecting plate can be pushed back the normal position by the elastic potential energy of spring, thereby fix the LED fluorescent tube through the cooperation of two second connecting plates and third connecting plate, thereby be convenient for to the installation of LED fluorescent tube, it rotates to drive the threaded rod through the handle, thereby promote the fifth connecting plate downstream, remove the apron, then push the inside of first recess with first connecting plate again, thereby remove the fixed to the LED fluorescent tube, then take out the LED fluorescent tube from the inside of casing, can accomplish the demolition to the LED fluorescent tube, thereby be convenient for change it, thereby the practicality has been improved.

Description

Combined LED blackboard lamp

Technical Field

The utility model relates to a blackboard lamp technical field specifically is a modular LED blackboard lamp.

Background

The blackboard is a plane that can be repeatedly written by chalk, and the face is hard, is mostly used for teaching, and the blackboard is generally made of plank or ground glass, and is mostly black, dark green, white or beige. The blackboard lamp is used for hanging on a ceiling in front of the blackboard to provide a light source for the blackboard.

The current common blackboard lamp on the market generally mainly comprises a light-emitting component and a blackboard lamp shell provided with the light-emitting component, wherein the blackboard lamp shell is hung above a blackboard through a hanging rod, so that light rays emitted by the light-emitting component irradiate on the blackboard, and the purpose of illuminating the blackboard is achieved;

the existing blackboard lamp is generally of an integrated structure, and when the blackboard lamp is damaged or is not bright and needs to be maintained, the luminous assembly in the blackboard lamp is inconvenient to replace, disassemble and assemble, so that the practicability is reduced; and the luminous reflection angle of the existing blackboard lamp can influence the uneven brightness diffusion, so that the problems of low luminous efficiency and high power consumption are caused, and therefore, the combined LED blackboard lamp is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a modular LED blackboard 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: a combined LED blackboard lamp comprises two supports, wherein a first lifting rope is wound on the lower surface of each support, one end, far away from each support, of the first lifting rope is fixedly connected with a fixed plate, the lower surface of the fixed plate is in threaded connection with a shell, two sliding grooves are symmetrically formed in the inner side wall of the shell, a second groove is formed in the inner side wall of each sliding groove, a first groove is formed in the inner side wall of the second groove, a spring is welded on the inner side wall of the first groove, a first connecting plate is welded at one end, far away from the first groove, of the spring, the outer side wall of the first connecting plate is connected to the inner side wall of the first groove in a sliding mode, a second connecting plate is welded at one side, far away from the spring, of the first connecting plate, the outer side wall of the second connecting plate is connected to the outer side, two one side that the second connecting plate is adjacent is equipped with the LED fluorescent tube, the symmetrical threaded connection of casing lateral wall has two fourth connecting plates, the upper surface of fourth connecting plate is seted up threaded hole, the inside wall threaded connection of screw hole has the threaded rod, the bottom of threaded rod is rotated through the bearing and is connected with the fifth connecting plate.

As further preferable in the present technical solution: and a cover plate is arranged on one side of the fifth connecting plate adjacent to the lower surface of the shell.

As further preferable in the present technical solution: a through groove is formed in the lower surface of the cover plate, and a light guide plate is bonded inside the through groove.

As further preferable in the present technical solution: the LED lamp tube is characterized in that a reflector is connected to the inner top wall of the shell in a threaded mode and located above the LED lamp tube.

As further preferable in the present technical solution: and one end of the threaded rod, which is far away from the fifth connecting plate, is fixedly connected with a handle.

As further preferable in the present technical solution: the lower surface symmetry of support is around being equipped with two second lifting ropes, the one end fixed connection in the upper surface of fixed plate that the support was kept away from to the second lifting rope, first lifting rope is located between two second lifting ropes.

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

firstly, the second connecting plates slide into the second grooves, so that the springs are extruded through the first connecting plates to generate elastic deformation, then the LED lamp tubes slide into the shell, and then the first connecting plates can be pushed back to the original positions by the elastic potential energy of the springs, so that the LED lamp tubes are fixed through the matching of the two second connecting plates and the third connecting plates, and the LED lamp tubes are convenient to install;

secondly, the utility model drives the threaded rod to rotate through the handle, thereby pushing the fifth connecting plate to move downwards, removing the cover plate, then pushing the first connecting plate into the first groove, thereby releasing the fixation of the LED lamp tube, then taking the LED lamp tube out of the shell, and completing the dismantling of the LED lamp tube, thereby facilitating the replacement of the LED lamp tube and improving the practicability;

when light rays irradiate the light guide plate, reflected light can be diffused towards all angles, and then the reflected light is emitted from the front surface of the light guide plate by destroying the reflection condition, so that the blackboard lamp can emit light more uniformly;

four, the utility model discloses the reflector panel can be with the light reflection of LED fluorescent tube top surface back to in the light guide plate to improve the availability factor of light, under the equal area luminous luminance circumstances, luminous efficacy is higher, and the consumption is lower.

Drawings

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

fig. 2 is an enlarged view of the structure of the region a in fig. 1 according to the present invention;

fig. 3 is an enlarged view of the structure of the region B in fig. 1 according to the present invention;

fig. 4 is a schematic view of a connection structure of the bracket, the second lifting rope and the fixing plate of the present invention;

fig. 5 is a schematic structural view of the bracket of the present invention;

fig. 6 is a bottom view of the bracket of the present invention.

In the figure: 1. a support; 2. a first lifting rope; 3. a fixing plate; 4. a housing; 5. a chute; 6. a second groove; 7. a first groove; 8. a spring; 9. a first connecting plate; 10. a second connecting plate; 11. a third connecting plate; 12. an LED lamp tube; 13. a fourth connecting plate; 14. a threaded hole; 15. a threaded rod; 16. a fifth connecting plate; 17. a cover plate; 18. a through groove; 19. a light guide plate; 20. a reflector; 21. a handle; 22. a second lifting rope.

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.

Examples

Referring to fig. 1-6, the present invention provides a technical solution: a combined LED blackboard lamp comprises two supports 1, a first lifting rope 2 is wound on the lower surface of each support 1, a fixed plate 3 is fixedly connected to one end, far away from each support 1, of each first lifting rope 2, a shell 4 is in threaded connection with the lower surface of each fixed plate 3, two sliding chutes 5 are symmetrically formed in the inner side wall of each shell 4, second grooves 6 are formed in the inner side walls of the sliding chutes 5, first grooves 7 are formed in the inner side walls of the second grooves 6, springs 8 are welded on the inner side walls of the first grooves 7, first connecting plates 9 are welded at one ends, far away from the first grooves 7, of the springs 8, outer side walls of the first connecting plates 9 are slidably connected to the inner side walls of the first grooves 7, second connecting plates 10 are welded at one sides, far away from the first connecting plates 9, of the first connecting plates 10 are slidably connected to the outer side walls of the second grooves 6, and two third, two adjacent one sides of second connecting plate 10 are equipped with LED

fluorescent tube

12, and 4 lateral walls of casing symmetry threaded connection have two fourth connecting plates 13, and threaded hole 14 has been seted up to the upper surface of fourth connecting plate 13, and threaded hole 14's inside wall threaded connection has threaded rod 15, and threaded rod 15's bottom is passed through the bearing and is rotated and be connected with fifth connecting plate 16.

In this embodiment, specifically: a cover plate 17 is arranged on one side of the fifth connecting plate 16 adjacent to the lower surface of the shell 4; the cover plate 17 is arranged, so that the LED lamp tube 12 can be protected.

In this embodiment, specifically: a through groove 18 is formed in the lower surface of the cover plate 17, and a light guide plate 19 is bonded inside the through groove 18; when light rays strike the light guide plate 19, reflected light can be diffused towards all angles, and then reflection conditions are destroyed to be emitted from the front face of the light guide plate 19, so that the blackboard lamp can emit light more uniformly.

In this embodiment, specifically: the top wall of the inner side of the shell 4 is in threaded connection with a reflector 20, and the reflector 20 is positioned above the LED lamp tube 12; the reflector 20 reflects the light from the top surface of the LED tube 12 back to the light guide plate 19, so as to improve the utilization efficiency of the light.

In this embodiment, specifically: one end of the threaded rod 15 far away from the fifth connecting plate 16 is fixedly connected with a handle 21; the handle 21 is arranged, so that the threaded rod 15 can be rotated more conveniently and more conveniently in a labor-saving manner.

In this embodiment, specifically: two second lifting ropes 22 are symmetrically wound on the lower surface of the bracket 1, one end, far away from the bracket 1, of each second lifting rope 22 is fixedly connected to the upper surface of the fixing plate 3, and the first lifting rope 2 is located between the two second lifting ropes 22; through setting up second lifting rope 22, can alleviate the pressure of first lifting rope 2, make this blackboard lamp more stable.

Working principle or structural principle, when in use, the second connecting plate 10 moves towards the direction inside the second groove 6, so that the first connecting plate 9 is pushed into the first groove 7, the spring 8 is extruded to generate elastic deformation, then the LED lamp tube 12 slides into the shell 4 along the track of the sliding groove 5, then the first connecting plate 9 can be pushed back to the original position by the elastic potential energy generated after the spring 8 generates elastic deformation, so that the LED lamp tube 12 is fixed by the matching of the two second connecting plates 10 and the third connecting plate 11, then the cover plate 17 is arranged on the lower surface of the shell 4, then the threaded rod 15 is driven to rotate by the handle 21, so that the fifth connecting plate 16 is pulled to move upwards, the cover plate 17 is fixed by the matching with the shell 4, when light irradiates the light guide plate 19, reflected light can diffuse towards all angles, then destroy the reflection condition and openly penetrate by light guide plate 19, thereby make this blackboard lamp luminous more even, reflector panel 20 can be with the light reflection of LED fluorescent tube 12 top surface back in the light guide plate 19, thereby improve the availability factor of light, under the equal area luminous luminance circumstances, luminous efficacy is higher, the consumption is lower, when needing to change LED fluorescent tube 12, drive threaded rod 15 through handle 21 and rotate, thereby promote the downward movement of fifth connecting plate 16, remove apron 17, then push into the inside of first recess 7 with first connecting plate 9 again, thereby remove the fixed to LED fluorescent tube 12, then take out LED fluorescent tube 12 from the inside of casing 4, can accomplish the demolition to LED fluorescent tube 12, thereby be convenient for change it.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a modular LED blackboard lamp, includes two supports (1), its characterized in that: the lower surface of the support (1) is wound with a first lifting rope (2), one end, far away from the support (1), of the first lifting rope (2) is fixedly connected with a fixing plate (3), the lower surface of the fixing plate (3) is in threaded connection with a shell (4), two sliding grooves (5) are symmetrically formed in the inner side wall of the shell (4), a second groove (6) is formed in the inner side wall of each sliding groove (5), a first groove (7) is formed in the inner side wall of each second groove (6), a spring (8) is welded on the inner side wall of each first groove (7), a first connecting plate (9) is welded at one end, far away from the first groove (7), of each spring (8), the outer side wall of each first connecting plate (9) is connected to the inner side wall of the first groove (7) in a sliding mode, a second connecting plate (10) is welded at one side, far away, the lateral wall sliding connection of second connecting plate (10) is in the lateral wall of second recess (6), the one side symmetry welding that first connecting plate (9) were kept away from in second connecting plate (10) has two third connecting plates (11), two one side that second connecting plate (10) are adjacent is equipped with LED fluorescent tube (12), casing (4) lateral wall symmetry threaded connection has two fourth connecting plates (13), threaded hole (14) are seted up to the upper surface of fourth connecting plate (13), the inside wall threaded connection of screw hole (14) has threaded rod (15), the bottom of threaded rod (15) is rotated through the bearing and is connected with fifth connecting plate (16).

2. The combined LED blackboard lamp of claim 1, wherein: and a cover plate (17) is arranged on one side of the fifth connecting plate (16) adjacent to the lower surface of the shell (4).

3. The combined LED blackboard lamp of claim 2, wherein: a through groove (18) is formed in the lower surface of the cover plate (17), and a light guide plate (19) is bonded inside the through groove (18).

4. The combined LED blackboard lamp of claim 1, wherein: the LED lamp tube is characterized in that a reflector (20) is connected to the top wall of the inner side of the shell (4) in a threaded mode, and the reflector (20) is located above the LED lamp tube (12).

5. The combined LED blackboard lamp of claim 1, wherein: and one end of the threaded rod (15) far away from the fifth connecting plate (16) is fixedly connected with a handle (21).

6. The combined LED blackboard lamp of claim 1, wherein: the lower surface symmetry of support (1) is around being equipped with two second lifting rope (22), the one end fixed connection in the upper surface of fixed plate (3) that support (1) were kept away from in second lifting rope (22), first lifting rope (2) are located between two second lifting rope (22).