Panel lamp with lamp beads convenient to replace

Abstract

The invention relates to the field of lamp structures, in particular to a panel lamp with lamp beads convenient to replace, which comprises a base, the lamp beads which are detachably connected to the base and can be electrified to emit light, and a lampshade which is detachably connected to the base and allows light to penetrate through, the lampshade comprises a frame with the outer side edge rotationally connected to the base and a light guide plate detachably connected to the periphery of the inner side of the frame, the frame is slidably connected with a movable rod capable of being inserted into the base, the position, capable of being inserted into the base, of the movable rod is fixedly connected with a lock rod, and the lock rod can be inserted into the base in the moving direction of the movable rod. And a lock spring for forcing the lock rod to be tightly inserted into the base is arranged in the frame, so that no gap exists on the lampshade, and the influence on the light emitting uniformity of the lampshade is reduced.

Description

Technical Field

[0001] The present application relates to the field of lamp structures, and in particular to a panel lamp with convenient lamp bead replacement. Background Art

[0002] Panel lights use light guide plates to transform single-point light sources of multiple LED lamp beads into flat light sources, so that the light emitted is soft and less irritating to the human eye. However, during long-term use, some lamp beads are damaged, making the corresponding part of the light-emitting area of ​​the panel light dim, so they need to be replaced. In order to reduce the materials and costs of replacement, some panel lights will design the lampshade made of the light guide plate to be easy to disassemble, so that users can replace the lamp beads themselves later.

[0003] For example, in an LED panel light with announcement number CN220436355U, two lampshades are rotatably connected to the base on one side away from the other, so that after moving the insert located on the vertical side of the lampshade, the two lampshades can be flipped down to expose the lamp beads, and then the damaged lamp beads can be unscrewed from the corresponding lamp holder for replacement.

[0004] With respect to the above-mentioned related technologies, there is a gap between the two lampshades, which makes the light brightness of the panel lamp at the gap between the two lampshades lower, affecting the overall light uniformity of the panel lamp. Summary of the invention

[0005] In order to reduce the impact on the overall luminous uniformity of the panel lamp, the present application provides a panel lamp with convenient lamp bead replacement.

[0006] The present application provides a panel lamp with convenient lamp bead replacement, which adopts the following technical solution.

[0007] A panel lamp with convenient lamp bead replacement comprises a base, lamp beads detachably connected to the base and capable of emitting light when powered on, and a lampshade detachably connected to the base and allowing light to pass through. The lampshade comprises a frame whose outer edge is rotatably connected to the base and a light guide plate detachably connected to the inner periphery of the frame. The frame is slidably connected to a movable rod that can be plugged into the base. A locking rod is fixedly connected to a position where the movable rod can be inserted into the base. The locking rod can be plugged into the inside of the base along the moving direction of the movable rod. A locking spring is provided in the frame to force the locking rod to be tightly plugged into the base.

[0008] By adopting the above technical solution, there is no gap in the middle of the light guide plate, so that the light uniformity at various places of the light guide plate is high, and the flip form of the lampshade is retained, so that when the panel light is set at a higher height, the lampshade can be conveniently opened to facilitate the replacement of lamp beads.

[0009] Optionally, the locking rod is formed with a return rod inclined surface that can abut against the base to allow the movable rod to enter the opening, and the return rod inclined surface abuts against the base to force the movable rod to move toward the locking spring.

[0010] By adopting the above technical solution, when the lampshade is turned toward the base, the locking rod can rebound by itself and be plugged into the base again, so that after the lamp beads are replaced, the lampshade can be closed more conveniently.

[0011] Optionally, the frame is slidably connected to a return-limiting rod that can be plugged into the moving rod, and the frame is provided with a return-limiting spring that can force the return-limiting rod to move toward the moving rod. When the return-limiting rod is plugged into the moving rod, the locking rod is detached from the frame.

[0012] By adopting the above technical solution, when the lampshade needs to be opened to replace the lamp beads, the movable rod is moved until the return limit rod is inserted into the movable rod and then the movable rod is released. At this time, the movable rod will not reset itself, so that the lampshade can be slowly opened.

[0013] Optionally, the base is formed with a moving opening along its thickness direction, the frame is fixedly connected with a frame shaft, and the frame shaft is rotatably connected with a shaft slider slidably connected to the moving opening.

[0014] By adopting the above technical solution, when the lampshade is opened, the lampshade will first translate and then flip, so that the periphery of the panel light can be embedded and installed at the corresponding position, reducing the protrusion of the panel light and the size of the peripheral gap, while ensuring that the lampshade can be opened smoothly.

[0015] Optionally, the base includes a mounting plate for detachable connection of the lamp beads and for insertion of the movable rod, and a lower adjustment block slidably connected to the mounting plate, a movable opening is opened in the lower adjustment block, a sliding direction of the lower adjustment block is consistent with a length direction of the movable opening, and one end of the lower adjustment block is always located inside the mounting plate.

[0016] By adopting the above technical solution, the lampshade can be further flush with the surface around the installation position, and when the lampshade needs to be opened, the lampshade is not easily unable to be opened due to too small a peripheral gap.

[0017] Optionally, a retraction spring forcing the lowering block to retract into the mounting plate is provided at one end of the lowering block located in the mounting plate.

[0018] By adopting the above technical solution, the lampshade as a whole can be slowly moved downward. At the same time, when the lampshade is not opened, the retraction spring can also provide supporting force for the lampshade, so as to avoid the lampshade which has only a locking rod and a moving rod inserted into the base for fixing the position to appear tilted, and reduce the situation where there is a large angle between the lampshade and the surrounding surface at the installation position.

[0019] Optionally, a transformer block is slidably connected in the mounting plate for abutment against a retraction spring, the transformer block's inclined surface away from the retraction spring abuts against a left wedge rod slidably connected to the mounting plate, the left wedge rod's inclined surface away from one end of the transformer block abuts against a middle wedge rod slidably connected to the mounting plate, the middle wedge rod's inclined surface away from one end of the left wedge rod abuts against a right wedge rod slidably connected to the mounting plate, and the process of inserting the locking rod into the mounting plate can force the right wedge rod, the middle wedge rod, the left wedge rod and the transformer block to move synchronously so that the retraction spring is compressed.

[0020] By adopting the above technical solution, when the locking rod is inserted into the base to keep the lampshade closed, the retraction spring is compressed to a greater extent at this time, so that the lampshade is subjected to a greater supporting force, so that when the panel is arranged on the ceiling, the lampshade is located on the side of the lower adjustment block and is not prone to a large drop; and when the locking rod is separated from the base to open the lampshade, the retraction spring is compressed to a less extent at this time, so that at this time, under the action of the lampshade's own gravity, the lower adjustment block can move downward smoothly, so that the lampshade can protrude from the bottom surface of the ceiling, so that the lampshade can be smoothly flipped over to open.

[0021] Optionally, auxiliary springs are provided in the frame corresponding to the left wedge rod, the middle wedge rod and the right wedge rod, which can make the voltage transformer tend to move toward the retraction spring.

[0022] By adopting the above technical solution, the pressure applied by the lock spring to the lock rod is not easy to be too large, so that when the lampshade is opened, the movable rod can be moved more conveniently to facilitate the opening of the lampshade.

[0023] Optionally, a frame slope is formed on the inner periphery of the frame, and the distance between two opposite sides of the frame slope becomes larger as they are closer to the base. The base is fixedly connected with a mounting frame whose outer surface can abut against the frame slope.

[0024] By adopting the above technical solution, the frame, that is, the lampshade, can be smoothly installed in place.

[0025] Optionally, a torsion spring is provided between the frame shaft and the shaft slider to force the frame to rotate toward the base, and the gravity of the frame is greater than the torsional force provided to the frame by the torsion spring.

[0026] By adopting the above technical solution, the lampshade is slowly turned down during the turning process, so as to reduce the possibility of causing damage to maintenance personnel during the opening process of the lampshade.

[0027] In summary, the present application includes at least the following beneficial effects.

[0028] There is no gap in the middle of the light guide plate, so that the light uniformity is high everywhere on the light guide plate, and the flip form of the lampshade is retained, so that when the panel light is set at a higher height, the lampshade can be conveniently opened to facilitate the replacement of lamp beads. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the structure when the present application is horizontally installed on a suspended ceiling, viewed from the bottom; Figure 2 It is a structural schematic diagram of a partial cross-section of a mounting plate, a frame and a light guide plate; Figure 3 yes Figure 2 Enlarged view of point A in the middle; Figure 4 It is a schematic diagram of the top structure of the mounting plate.

[0030] Explanation of the accompanying drawings: 1. base; 2. lamp bead; 3. lampshade; 31. torsion spring; 32. auxiliary spring; 33. frame rotation mouth; 4. frame; 41. mounting plate; 42. lowering block; 43. frame inclined surface; 44. mounting frame; 45. retraction spring; 46. transformer block; 47. left wedge rod; 48. middle wedge rod; 49. right wedge rod; 5. light guide plate; 51. moving rod; 52. locking rod; 53. locking spring; 54. return rod inclined surface; 55. return limit rod; 56. return limit spring; 57. moving mouth; 58. frame shaft; 59. shaft slider. DETAILED DESCRIPTION

[0031] The present application is further described in detail below in conjunction with the accompanying drawings.

[0032] The present application embodiment discloses a panel lamp with convenient lamp bead replacement, referring to Figure 1 and Figure 2 The invention comprises a base 1 which can be installed in the ceiling and is horizontal, and a plurality of lamp beads 2 which can emit light when powered on are detachably connected to the bottom surface of the base 1. The base 1 is fitted with a lampshade 3 which can surround all the lamp beads 2, and the light of the lamp beads 2 can be emitted through the lampshade 3 to form uniform light, and the bottom surface of the lampshade 3 in a horizontal state is flush with the bottom surface of the ceiling.

[0033] Reference Figure 2 and Figure 3 The lampshade 3 includes a frame 4 and a light guide plate 5 detachably connected to the frame 4. The base 1 includes a mounting plate 41 for connecting the lamp beads 2 and a lower adjustment block 42 located at one side of the mounting plate 41. The side surface of the frame 4 in the thickness direction is formed with a frame rotation opening 33 that penetrates the upper and lower surfaces of the frame 4 when the frame 4 is in a horizontal state. The lower adjustment block 42 is located in the frame rotation opening 33. The inner wall of the frame rotation opening 33 is fixedly connected with a horizontal frame shaft 58. The frame shaft 58 is rotatably connected with a shaft slider 59. The lower adjustment block 42 is provided with a same vertical moving opening 57 that penetrates the two vertical surfaces. The shaft slider 59 is slidably connected to the moving opening 57 in the vertical direction. At the same time, the upper end of the lower adjustment block 42 is slidably connected to the mounting plate 41 in the vertical direction, and the upper end of the lower adjustment block 42 has a larger width, so that the lower adjustment block 42 is not easy to separate from the bottom surface of the mounting plate 41.

[0034] When the lampshade 3 needs to be opened, the frame 4 and the lowering block 42 will first move downward vertically. When the bottom end height of the moving opening 57 is lower than the height of the lower surface of the ceiling so that the upper surface height of the frame 4 which is vertically positioned later is slightly lower than the lower surface height of the ceiling, the lowering block 42 cannot move downward any further. When the upper surface of the frame 4 is flush with the bottom surface of the ceiling when it is horizontal, the frame shaft 58 moves to the bottom end of the moving opening 57, at which time the frame 4 rotates around the axis of the frame shaft 58, so that the frame 4 changes from horizontal to vertical, so that when the gap between the periphery of the frame 4 and the ceiling is small and the bottom surface of the frame 4 in a closed state is flush with the bottom surface of the ceiling, the frame 4 can also be smoothly flipped and opened.

[0035] Reference Figure 3 A torsion spring 31 is detachably connected between the frame shaft 58 and the shaft slider 59, and the torsion spring 31 forces the frame 4 to flip up. At the same time, the flipping force provided by the torsion spring 31 to the frame 4 is smaller than the overall gravity of the lampshade 3, so that the flipping speed of the frame 4 is not easy to be too fast.

[0036] Reference Figure 1 A movable rod 51 is slidably connected to the upper surface of the horizontal frame 4 on the side away from the lower adjustment block 42. The sliding direction of the movable rod 51 is consistent with the axial direction of the frame shaft 58. The movable rod 51 is plugged into the bottom surface of the mounting plate 41. A horizontal locking rod 52 is fixedly connected to the upper end of the movable rod 51. The locking rod 52 can be plugged into the mounting plate 41 along the moving direction of the movable rod 51, so that the movable rod 51 is difficult to be easily separated from the mounting plate 41. A locking spring 53 is provided in the frame 4 to abut against the vertical side of the movable rod 51 away from the locking rod 52 to ensure that the frame 4 is not easily away from the mounting plate 41. A limited return rod 55 is slidably connected to the lower surface of the horizontal frame 4. The moving direction of the limited return rod 55 is perpendicular to the moving direction of the movable rod 51. The limited return rod 55 can be plugged into the movable rod 51, and when the limited return rod 55 is plugged into the movable rod 51, the locking rod 52 is no longer plugged into the mounting plate 41, so that the frame 4 can move and rotate smoothly at this time. In addition, the frame 4 is provided with a return-limiting spring 56 for forcing the return-limiting rod 55 to move toward the movable rod 51 , so as to ensure that the return-limiting rod 55 cannot easily move away from the movable rod 51 .

[0037] Reference Figure 3 and Figure 4The end of the lock rod 52 away from the movable rod 51 is formed with a return rod inclined surface 54, and the return rod inclined surface 54 can contact the side of the opening of the mounting plate 41 for the movable rod 51 to be inserted, so that when the frame 4 is rotated to a horizontal state and moved upward, the lock rod 52 can drive the movable rod 51 to move to compress the lock spring 53, so as to fix the position of the frame 4. In addition, a frame inclined surface 43 is formed at the inner periphery of the frame 4, and the horizontal frame inclined surface 43 has a larger distance between the two positions closer to the mounting plate 41 as the two sides are relatively close. The bottom surface of the mounting plate 41 is fixedly connected to the mounting frame 44, and the outer peripheral surface of the mounting frame 44 is inclined and abutted against the frame inclined surface 43, so that when the frame 4 is moved corresponding to the mounting plate 41, even if the rotating shaft slider 59 will have a certain degree of horizontal movement in the moving opening 57, the frame 4 can be fixed in position with the mounting plate 41 according to a predetermined posture.

[0038] Reference Figure 2 and Figure 4 The upper end of the lower adjustment block 42 with a larger width is detachably connected with a retraction spring 45. The retraction spring 45 forces the lower adjustment block 42 to move upward, so that when the movable rod 51 is moved to make the locking rod 52 detach from the mounting plate 41, the lower adjustment block 42 is not likely to fall too quickly. In addition, a transformer block 46 is slidably connected in the vertical direction in the mounting plate 41. The upper surface of the transformer block 46 is detachably connected to the retraction spring 45. The lower end of the transformer block 46 is inclined with a left wedge rod 47. The left wedge rod 47 is slidably connected to the mounting plate 41 along the axis direction of the frame shaft 58. The inclined surface of the left wedge rod 47 away from the transformer block 46 is abutted with a middle wedge rod 48. When the middle wedge rod 48 is horizontal, it moves horizontally and the moving direction is perpendicular to the left wedge rod 47. In the moving direction, the inclined surface of the middle wedge rod 48 away from the left wedge rod 47 is abutted against the right wedge rod 49, and the sliding direction of the right wedge rod 49 is opposite to the sliding direction of the left wedge rod 47. The end of the right wedge rod 49 away from the middle wedge rod 48 can abut against the locking rod 52, so that in the process of the locking rod 52 being inserted into the mounting plate 41, the right wedge rod 49, the middle wedge rod 48, the left wedge rod 47 and the transformer block 46 can be forced to move synchronously, so that the transformer block 46 moves toward the retraction spring 45.

[0039] After the locking rod 52 is inserted into the mounting plate 41, the retraction spring 45 is compressed to a greater extent, so that the downward adjustment block 42 is subjected to a greater pressure, and then the downward adjustment block 42 can be stably abutted against the mounting plate 41 without shaking. After the locking rod 52 is separated from the mounting plate 41, when the frame 4 needs to be moved down and turned over, the locking rod 52 is away from the right wedge rod 49, so that the compression of the retraction spring 45 is reduced, and the downward adjustment block 42 can move down smoothly.

[0040] Reference Figure 1The mounting plate 41 is provided with three groups of auxiliary springs 32, which correspond to the left wedge rod 47, the middle wedge rod 48 and the right wedge rod 49 respectively. The auxiliary springs 32 force the left wedge rod 47, the middle wedge rod 48 and the right wedge rod 49 to move so that the transformer block 46 tends to move toward the retraction spring 45, so that the locking rod 52 can smoothly push the right wedge rod 49 to move without applying too much pressure to the moving rod 51 by the locking spring 53.

[0041] The implementation principle of a panel lamp with convenient lamp bead replacement in an embodiment of the present application is: when the lamp bead 2 needs to be replaced, the movable rod 51 is pushed until the return limit rod 55 is inserted into the movable rod 51. At this time, the locking rod 52 has been separated from the mounting plate 41, and then the frame 4 as a whole will move downward first and then flip around the frame shaft 58, so that the frame 4 is changed from a horizontal state to a vertical state, and then the damaged lamp bead 2 can be unscrewed for replacement.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A panel lamp with convenient lamp bead replacement, comprising a base (1), lamp bead (2) detachably connected to the base (1) and capable of emitting light when powered on, and a lampshade (3) detachably connected to the base (1) and capable of transmitting light, characterized in that: The lampshade (3) comprises a frame (4) whose outer side is rotatably connected to the base (1) and a light guide plate (5) detachably connected to the inner periphery of the frame (4); the frame (4) is slidably connected to a movable rod (51) that can be plugged into the base (1); the movable rod (51) is fixedly connected to a position in the base (1) where it can be inserted; the locking rod (52) can be plugged into the inside of the base (1) along the moving direction of the movable rod (51); and a locking spring (53) is provided in the frame (4) for forcing the locking rod (52) to be tightly plugged into the base (1).

2. According to claim 1, a panel light with convenient lamp bead replacement, characterized in that: The locking rod (52) is formed with a return rod inclined surface (54) that can abut against the base (1) to allow the movable rod (51) to enter the opening; the return rod inclined surface (54) abuts against the base (1) to force the movable rod (51) to move toward the locking spring (53).

3. According to claim 1, a panel light with convenient lamp bead replacement, characterized in that: The frame (4) is slidably connected to a return-limiting rod (55) that can be plugged into the movable rod (51). The frame (4) is provided with a return-limiting spring (56) that can force the return-limiting rod (55) to move toward the movable rod (51). When the return-limiting rod (55) is plugged into the movable rod (51), the locking rod (52) is separated from the frame (4).

4. The panel light with convenient lamp bead replacement according to claim 1, characterized in that: The base (1) is formed with a moving opening (57) along its thickness direction, the frame (4) is fixedly connected to a frame rotating shaft (58), and the frame rotating shaft (58) is rotatably connected to a rotating shaft slider (59) slidably connected to the moving opening (57).

5. The panel light with convenient lamp bead replacement according to claim 4, characterized in that: The base (1) comprises a mounting plate (41) to which the lamp beads (2) are detachably connected and to which the moving rod (51) is inserted, and a lower adjustment block (42) slidably connected to the mounting plate (41); a moving opening (57) is provided in the lower adjustment block (42); a sliding direction of the lower adjustment block (42) is consistent with a length direction of the moving opening (57); and one end of the lower adjustment block (42) is always located in the mounting plate (41).

6. The panel light with convenient lamp bead replacement according to claim 5, characterized in that: A retraction spring (45) forcing the lowering block (42) to retract into the mounting plate (41) is provided at one end of the lowering block (42) located inside the mounting plate (41).

7. The panel light with convenient lamp bead replacement according to claim 6, characterized in that: A transformer block (46) for abutting the retraction spring (45) is slidably connected inside the mounting plate (41); the inclined surface of the transformer block (46) away from the retraction spring (45) abuts against a left wedge rod (47) slidably connected to the mounting plate (41); the inclined surface of one end of the left wedge rod (47) away from the transformer block (46) abuts against a middle wedge rod (48) slidably connected to the mounting plate (41); the inclined surface of one end of the middle wedge rod (48) away from the left wedge rod (47) abuts against a right wedge rod (49) slidably connected to the mounting plate (41); the process of the locking rod (52) being inserted into the mounting plate (41) can force the right wedge rod (49), the middle wedge rod (48), the left wedge rod (47) and the transformer block (46) to move synchronously so that the retraction spring (45) is compressed.

8. The panel light with convenient lamp bead replacement according to claim 7, characterized in that: Auxiliary springs (32) are provided in the frame (4) corresponding to the left wedge rod (47), the middle wedge rod (48) and the right wedge rod (49), which can cause the voltage-changing block (46) to tend to move toward the retraction spring (45).

9. The panel light with convenient lamp bead replacement according to claim 4, characterized in that: The frame (4) is formed with a frame bevel (43) on the inner periphery, and the distance between the two positions of the frame bevel (43) on both sides closer to the base (1) is larger, and the base (1) is fixedly connected with a mounting frame (44) whose outer surface can abut against the frame bevel (43).

10. The panel light with convenient lamp bead replacement according to claim 4, characterized in that: A torsion spring (31) is provided between the frame rotation shaft (58) and the rotation shaft slider (59) for forcing the frame (4) to rotate toward the base (1), and the gravity of the frame (4) is greater than the torsion force provided by the torsion spring (31) to the frame (4).

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