A panel light structure

Abstract

This utility model discloses a panel light structure, including a frame, a diffuser plate, an LED light strip, and a back shell. The frame is ring-shaped, with a first pressing edge and a supporting edge protruding outward along the circumferential sidewall of its inner ring. The diffuser plate is located between the first pressing edge and the supporting edge, and its edge overlaps the supporting edge. The back shell has a second pressing edge protruding outward along the circumferential sidewall of its inner side. The first pressing edge and the second pressing edge abut against each other. Clamping blocks are movably arranged on the four inner walls of the back shell. One side of each clamping block has a recessed groove. The first pressing edge and the second pressing edge can be clamped in the groove. A first spring abuts against the clamping block and the back shell. The first spring keeps the groove clamped on the first pressing edge and the second pressing edge. The second pressing edge has a recessed slot. The first pressing edge has a recessed pin hole directly below the slot. A spring pin component is provided on the clamping block within the slot.

Description

Technical Field

[0001] This utility model specifically relates to a panel light structure. Background Technology

[0002] Panel lights are a novel type of indoor lighting fixture. They are recessed into the ceiling to provide direct lighting. The fixtures are aesthetically pleasing and simple in design, providing both good lighting effects and a sense of beauty.

[0003] In the prior art, such as the inductive panel light disclosed in Chinese Patent Publication No. CN218379114U, a groove is provided at the upper end of the frame, and a mounting hole is provided on the heat sink plate. The position of the mounting hole corresponds to the position of the groove. The inductive panel light also includes a fixing bolt, which passes through the mounting hole and the groove. The fixing bolt is used to fix the frame and the heat sink plate.

[0004] In summary, traditional technologies often use screw fastening or one-time snap-fit ​​structures to connect the frame and back cover. Screw fastening requires tools to tighten and loosen the screws one by one, which is cumbersome and the screws are prone to stripping after long-term use, causing the connection to loosen. Although one-time snap-fit ​​structures are quick to assemble, they are prone to breakage during disassembly, making them impossible to disassemble and reassemble repeatedly, and they are inconvenient to repair or replace internal LED light strips and diffusers.

[0005] Therefore, a panel light structure is needed to improve upon the problems mentioned above. Utility Model Content

[0006] In view of the defects of the existing technology, the technical problem to be solved by this utility model is to provide a panel light structure.

[0007] A panel light structure includes a frame, a diffuser plate, an LED light strip, and a back shell. The frame is annular in shape, with a first pressing edge and a supporting edge protruding outwards along the circumferential sidewall of its inner ring. The diffuser plate is located between the first pressing edge and the supporting edge, and its edge overlaps the supporting edge. The back shell has a second pressing edge protruding outwards along the circumferential sidewall of its inner side. The first pressing edge and the second pressing edge abut against each other. Clamping blocks are movably disposed on the four inner walls of the back shell, with a clamping groove recessed on one side of each clamping block. The first pressing edge and the second pressing edge can be clamped in the clamping groove. The clamping blocks and the back shell are connected... A first spring is correspondingly abutting the clamping block, which keeps the clamping groove pressed against the first and second pressing edges. The second pressing edge has a recessed slot, and the first pressing edge has a recessed pin hole directly below the slot. The clamping block is provided with a spring pin component located in the slot, which can move up and down elastically relative to the slot and is inserted into the pin hole. A bushing is rotatably provided on the back shell. One end of the bushing is provided with a cam located in the slot. The edge contour of the cam abuts against the lower side of the spring pin component. A top shaft is inserted into the bushing with an internal thread. A first groove is recessed on one side of the spring pin component, which can cooperate with the top shaft.

[0008] In one embodiment, the spring pin component includes a pin and a second spring. A guide hole communicating with a clamping groove is provided through the clamping block. The pin is movably inserted into the guide hole. A first limiting block that can abut against the upper side of the clamping block is provided at the upper end of the pin. A second limiting block is provided on the clamping block above the first limiting block. The second spring abuts between the first limiting block and the second limiting block. A second groove is recessed at the lower end of one side of the pin. The cam abuts against the upper side of the second groove. The first groove is formed in the second groove. When the cam rotates and presses against the pin, causing the pin to be at its highest point, the pin disengages from the pin hole, and at this time the top shaft and the second groove are aligned.

[0009] In one embodiment, the top shaft has a cross-shaped groove, a straight groove, or an internal hexagonal groove recessed at the center of the end away from the pin shaft.

[0010] In one embodiment, the first limiting block has a first limiting shaft protruding from its upper side, the second limiting block has a second limiting shaft protruding from its lower side, and the second spring is sleeved on the first limiting shaft and the second limiting shaft.

[0011] In one embodiment, the lower side of the first pressing edge is a first inclined surface, the upper side of the second pressing edge is a second inclined surface, the cross-sectional shape of the clamping groove is trapezoidal, and the two inclined surfaces of the clamping groove respectively abut against the first inclined surface and the second inclined surface.

[0012] In one embodiment, a fixing block is provided on the top wall of the inner cavity of the back shell, and a guide hole is provided through one side of the fixing block. The clamping block is movably inserted into the guide hole so that it can move closer to or further away from the first pressing edge or the second pressing edge.

[0013] In one embodiment, the back cover has a lamp cavity with a downward opening, and the LED light strip is disposed inside the lamp cavity.

[0014] In one embodiment, a sealing ring abuts between the first pressing edge and the second pressing edge.

[0015] In one embodiment, the frame can be fitted onto the lower end of the back shell so that the inner side of the frame abuts against the outer side of the back shell.

[0016] In summary, the advantages of this utility model over the prior art are: This invention achieves initial fixation by using the elastic clamping of the clamping block and the first spring, without the need for screws; during disassembly, after the rotating bushing lifts the spring pin through the cam, the top shaft can be inserted into the first groove along the thread and apply force, directly pushing the clamping block to move against the elastic force of the first spring, so that the clamping groove is separated from the first pressing edge and the second pressing edge, thus quickly completing the disassembly and assembly, solving the problem of "difficult disassembly and cumbersome assembly" in traditional structures. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of a panel light structure in one embodiment of the present utility model; Figure 2 As one embodiment of this utility model Figure 1 Enlarged view of point A; Figure 3 This is a partial exploded view of a panel light structure in one embodiment of the present invention; Figure 4 As one embodiment of this utility model Figure 3 Enlarged view of point B; Figure 5 This is an exploded view of a panel light structure in one embodiment of the present invention. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1 to 5The present invention preferably provides a panel light structure, including a frame 1, a diffuser plate 2, an LED light strip 3, and a back shell 4. The frame 1 is annular in shape, with a first pressing edge 5 and a supporting edge 6 protruding outwards along the circumferential sidewall of its inner ring. The diffuser plate 2 is located between the first pressing edge 5 and the supporting edge 6, and its edge overlaps the supporting edge 6. A second pressing edge 7 protrudes outwards along the circumferential sidewall of the inner side of the back shell 4. The first pressing edge 5 and the second pressing edge 7 abut against each other. Clamping blocks 8 are movably arranged on the four inner walls of the back shell 4, and a clamping groove 9 is recessed on one side of each clamping block 8. The first pressing edge 5 and the second pressing edge 7 can be clamped in the clamping groove 9. The clamping blocks 8 and the back shell 4 are aligned. A first spring 10 is provided to hold the clamping groove 9 clamped on the first pressing edge 5 and the second pressing edge 7. The second pressing edge 7 has a recessed slot 11. The first pressing edge 5 has a recessed pin hole 12 located directly below the slot 11. The clamping block 8 is provided with a spring pin member 13 located in the slot 11, which can move up and down elastically relative to it and is inserted into the pin hole 12. A bushing 14 is rotatably provided on the back shell 4. One end of the bushing 14 is provided with a cam 15 located in the slot 11. The edge contour of the cam 15 abuts against the lower side of the spring pin member 13. A top shaft 16 is inserted into the bushing 14 with an internal thread. The spring pin member 13 has a first groove 17 recessed on one side that can cooperate with the top shaft 16.

[0019] Specifically, one end of the bushing 14 extends outward from the outer side of the back shell. During installation, the supporting edge of the inner ring of the frame supports the lower side of the diffuser plate, and the first pressing edge is located on the upper side of the diffuser plate. The vertical distance between the two limits the position of the diffuser plate, preventing its vertical displacement. The frame and the back shell are then aligned so that the first pressing edge of the frame and the second pressing edge of the back shell abut against each other, completing the initial positioning. Under the push of the first spring force, the clamping blocks on the four sides of the back shell move towards the mating point of the two pressing edges. The clamping grooves fit and clamp the first pressing edge and the second pressing edge, and the frame and the back shell are initially fixed by the continuous pressure of the first spring. The spring pin component extends downward under its own elasticity, passes through the slot of the second pressing edge, and inserts into the pin hole of the first pressing edge, preventing the frame and the back shell from rotating relative to each other or from shifting laterally.

[0020] When disassembly is required, the rotating bushing drives the cam to rotate. The cam rotates and its convex part presses upward against the lower side of the spring pin component, causing it to overcome its own elastic force and move upward and disengage from the pin hole. At this time, the top shaft is screwed in again, so that the top shaft is screwed in through the threaded engagement, and the end is inserted into the first groove of the spring pin component. The top shaft is continued to be tightened, and the top shaft pushes the spring pin component through the first groove, thereby driving the clamping block to overcome the first spring force and move away from the two pressure edges. Finally, the clamping groove is disengaged from the first pressure edge and the second pressure edge, realizing the separation of the frame and the back shell.

[0021] Furthermore, when the top shaft is inserted into the first groove, the spring pin component can maintain the connection state of being compressed and disengaged from the pin hole, and the spring pin component can avoid interference with the first pressing edge when the clamping block moves.

[0022] Furthermore, the spring pin component 13 includes a pin 18 and a second spring 19. The clamping block 8 has a guide hole 20 that communicates with the clamping groove 9. The pin 18 is movably inserted into the guide hole 20. The upper end of the pin 18 is provided with a first limiting block 21 that can abut against the upper side of the clamping block 8. The clamping block 8 is provided with a second limiting block 22 above the first limiting block 21. The second spring 19 abuts between the first limiting block 21 and the second limiting block 22. The lower end of one side of the pin 18 has a second groove 23 recessed inward. The cam 15 abuts against the upper side of the second groove 23. The first groove 17 is formed in the second groove 23. When the cam 15 rotates and presses against the pin 18, causing the pin 18 to be at its highest point, the pin 18 disengages from the pin hole 12, and at this time the top shaft 16 and the second groove 23 are aligned.

[0023] Specifically, the pin is movably inserted into the guide hole of the clamping block. The first limiting block is fixed to the upper end of the pin and abuts against the upper side of the clamping block. The second limiting block is fixed on the clamping block and located above the first limiting block. The second spring abuts between the two limiting blocks, providing a continuous downward elastic force to the pin, ensuring that the pin is normally inserted into the pin hole. When the cam is driven to rotate and causes the spring pin to lift: the second groove at the lower end of one side of the pin abuts against the edge of the cam. When the cam rotates, its protruding part pushes upward against the upper side of the second groove, causing the pin to overcome the elastic force of the second spring and move upward along the guide hole, disengaging from the pin hole; at this time, the first groove (formed in the second groove) is aligned with the top shaft. After the top shaft is screwed in, it is inserted into the first groove. Continue to tighten the top shaft. The top shaft applies a pushing force to the pin through the first groove. The pin drives the clamping block to move along the guide hole away from the two pressure edges, while compressing the first spring; when the clamping block moves to the point where the clamping groove is completely disengaged from the first and second pressure edges, the frame and back shell can be separated.

[0024] Furthermore, the top shaft 16 has a cross-shaped groove, a slotted groove, or an internal hexagonal groove recessed at its center at the end furthest from the pin 18. Specifically, the top shaft has a cross-shaped, slotted, or internal hexagonal groove at the end furthest from the pin, and this groove type is adapted to common tools of corresponding specifications (such as Phillips screwdrivers, slotted screwdrivers, and internal hex wrenches). By inserting the tool into the groove and applying force, the top shaft can be driven to rotate around its own axis. Utilizing the threaded engagement between the top shaft and the bushing, the axial feeding (screwing in to push the clamping block) or retraction (screwing out to release the clamping block) of the top shaft can be achieved, facilitating the operation of the top shaft to complete disassembly or repositioning.

[0025] Furthermore, the first limiting block 21 has a first limiting shaft 24 protruding outward on its upper side, and the second limiting block 22 has a second limiting shaft 25 protruding outward on its lower side. The second spring 19 is sleeved on the first limiting shaft 24 and the second limiting shaft 25. Specifically, the first limiting block has a first limiting shaft protruding outward on its upper side, and the second limiting block has a second limiting shaft protruding outward on its lower side. The second spring is sleeved on the outside of the two limiting shafts. When the second spring is compressed or extended, the two limiting shafts form a radial limit on the inner hole of the spring, preventing the spring from shifting laterally, twisting, or misaligning, ensuring that the second spring always provides a stable elastic force along the axial direction of the pin, and ensuring the reliable operation of the spring pin component.

[0026] Furthermore, the lower side of the first pressing edge 5 is a first inclined surface 26, the upper side of the second pressing edge 7 is a second inclined surface 27, and the cross-sectional shape of the clamping groove 9 is trapezoidal, with the two inclined surfaces of the clamping groove 9 respectively abutting and cooperating with the first inclined surface 26 and the second inclined surface 27. Specifically, the lower side of the first pressing edge is set as the first inclined surface, the upper side of the second pressing edge is set as the second inclined surface, and the cross-section of the clamping groove is set as a trapezoid to accommodate the two inclined surfaces; when the clamping block clamps the two pressing edges under the drive of the first spring, the trapezoidal inclined surfaces on both sides of the clamping groove are completely in contact with the first inclined surface and the second inclined surface, respectively. On the one hand, this increases the contact area and improves the clamping stability; on the other hand, the inclined surface cooperation offsets the lateral gap between the frame and the back shell, preventing relative sliding and enhancing the sealing effect.

[0027] Furthermore, a fixing block 28 is provided on the top wall of the inner cavity of the back shell 4. A guide hole is provided through one side of the fixing block 28, and the clamping block 8 is movably inserted into the guide hole, allowing it to move relatively closer to or further away from the first pressing edge 5 or the second pressing edge 7. Specifically, a fixing block is fixedly provided on the top wall of the inner cavity of the back shell, and a guide hole is provided through one side of the fixing block. The clamping block is movably inserted into the guide hole. The guide hole limits the clamping block to moving only in the horizontal direction of "approaching or moving away from the two pressing edges," preventing the clamping block from shifting or tilting under the action of the first spring force, ensuring that the clamping groove is accurately fitted and clamps the two pressing edges, and preventing connection failure.

[0028] Furthermore, the back cover 4 has a bottom-opening lamp cavity 29, and the LED light strip 3 is disposed within the lamp cavity 29. Specifically, the back cover is designed as a bottom-opening lamp cavity structure, and the LED light strip is fixedly installed inside the lamp cavity; the enclosed space of the lamp cavity can isolate the light strip from external dust, moisture, and the influence of minor collisions, while the inner wall of the lamp cavity can reflect the light from the LED light strip, making the light more concentrated and propagating towards the diffuser plate, reducing light loss and improving lighting efficiency.

[0029] Furthermore, a sealing ring abuts between the first pressing edge 5 and the second pressing edge 7. Specifically, the sealing ring abuts between the first pressing edge and the second pressing edge, which can completely fill the gap between the two, preventing dust and moisture from entering the interior, avoiding LED light strip contamination or component corrosion, and greatly extending the product's service life. It is especially suitable for humid and dusty usage scenarios (such as kitchens and bathrooms).

[0030] Furthermore, the frame 1 can be fitted onto the lower end of the back shell 4 so that the inner side of the frame 1 abuts against the outer side of the back shell 4. Specifically, the frame can be fitted onto the lower end of the back shell so that the inner side of the frame and the outer side of the back shell are tightly abutted, forming a radial limit. During assembly, the central axis of the frame and the back shell can be quickly aligned to prevent eccentricity and ensure that the clamping groove of the clamping block can accurately fit the first pressing edge and the second pressing edge, avoiding clamping failure due to positioning deviation.

[0031] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A panel light structure comprising a frame (1), a diffusion plate (2), an LED light bar (3) and a back shell (4), characterized in that: The frame (1) is ring-shaped, with a first pressing edge (5) and a supporting edge (6) protruding outward along the circumferential sidewall of its inner ring. The diffuser plate (2) is located between the first pressing edge (5) and the supporting edge (6), and its edge overlaps the supporting edge (6). The back shell (4) has a second pressing edge (7) protruding outward along the circumferential sidewall of its inner side. The first pressing edge (5) and the second pressing edge (7) abut against each other. Clamping blocks (8) are movably arranged on the four inner walls of the back shell (4). A clamping groove (9) is recessed on one side of the clamping block (8). The first pressing edge (5) and the second pressing edge (7) can be clamped in the clamping groove (9). A first spring (10) abuts against the clamping block (8) and the back shell (4). The clamping groove (9) is clamped by the first spring (10). The clamp is held between the first pressing edge (5) and the second pressing edge (7). The second pressing edge (7) has a recessed slot (11). The first pressing edge (5) has a recessed pin hole (12) directly below the slot (11). The clamping block (8) has a spring pin component (13) located in the slot (11) that can move up and down elastically relative to it and is inserted into the pin hole (12). The back shell (4) is rotatably provided with a bushing (14). One end of the bushing (14) is provided with a cam (15) located in the slot (11). The edge contour of the cam (15) abuts against the lower side of the spring pin component (13). The bushing (14) is threadedly inserted with a top shaft (16). The spring pin component (13) has a first groove (17) on one side that can cooperate with the top shaft (16).

2. A panel light structure according to claim 1, characterized in that: The spring pin component (13) includes a pin (18) and a second spring (19). The clamping block (8) has a guide hole (20) that communicates with the clamping groove (9). The pin (18) is movably inserted into the guide hole (20). The upper end of the pin (18) is provided with a first limiting block (21) that can abut against the upper side of the clamping block (8). The clamping block (8) is provided with a second limiting block (22) above the first limiting block (21). The second spring (19) The pin (18) is located between the first limiting block (21) and the second limiting block (22). The lower end of one side of the pin (18) is recessed with a second groove (23). The cam (15) abuts against the upper side of the second groove (23). The first groove (17) is formed in the second groove (23). When the cam (15) rotates and presses against the pin (18) to the highest point, the pin (18) disengages from the pin hole (12), and at this time the top shaft (16) and the second groove (23) are aligned.

3. A panel light structure according to claim 2, wherein: The top shaft (16) has a cross-shaped groove, a straight groove, or an internal hexagonal groove recessed at the center of the end away from the pin shaft (18).

4. The panel light structure of claim 2, wherein: The first limiting block (21) has a first limiting shaft (24) protruding outward on its upper side, and the second limiting block (22) has a second limiting shaft (25) protruding outward on its lower side. The second spring (19) is sleeved on the first limiting shaft (24) and the second limiting shaft (25).

5. The panel light structure of claim 1, wherein: The lower side of the first pressing edge (5) is the first inclined surface (26), the upper side of the second pressing edge (7) is the second inclined surface (27), the cross-sectional shape of the clamping groove (9) is trapezoidal, and the two inclined surfaces of the clamping groove (9) respectively abut against the first inclined surface (26) and the second inclined surface (27).

6. The panel light structure of claim 1, wherein: The inner wall of the back shell (4) is provided with a fixing block (28). A guide hole is provided through one side of the fixing block (28). The clamping block (8) is movably inserted into the guide hole so that it can move closer to or further away from the first pressing edge (5) or the second pressing edge (7).

7. The panel light structure of claim 1, wherein: The back cover (4) has a lamp cavity (29) with an opening at the bottom, and the LED light strip (3) is disposed in the lamp cavity (29).

8. The panel light structure of claim 1, wherein: A sealing ring abuts between the first pressing edge (5) and the second pressing edge (7).

9. The panel light structure of claim 1, wherein: The frame (1) can be fitted onto the lower end of the back shell (4) so ​​that the inner side of the frame (1) abuts against the outer side of the back shell (4).

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