A single-chamber large explosion-proof lamp

Abstract

The present invention discloses a single-chamber large explosion-proof lamp, which relates to the field of explosion-proof lamps. The technical solution of the present invention includes a lamp board. A lamp groove is provided on the front surface of the lamp board. A light source circuit board is provided in the lamp groove, and a transparent plate is provided at the notch of the lamp groove. A through hole communicating to the back surface is provided at the bottom of the lamp groove, and a fastening device is docked at the outer port of the through hole. By adopting the structure of setting a lamp groove on the lamp board, the thickness of the lamp board can be significantly reduced. On the one hand, the area of the light-emitting area of the lamp board can be increased, and on the other hand, the thinner thickness can improve the heat dissipation efficiency, and then a light source with a larger power can be adopted to improve the illumination brightness.

Description

Technical Field

[0001] The present invention relates to the field of explosion-proof lamps, and particularly to a single-chamber large explosion-proof lamp. Background Art

[0002] Explosion-proof lamps are used for emergency lighting when normal outdoor conventional lighting cannot be used. Current explosion-proof lamps integrate structures such as power supplies, resulting in a very bulky overall structure. The light source and power supply are located inside the cavity, affecting the heat dissipation effect. After the light source and power supply are stacked, the heat generation is more serious. Summary of the Invention

[0003] To solve the above technical problems, the present invention provides a single-chamber large explosion-proof lamp. By adopting the structure of arranging lamp grooves on the lamp board, the thickness of the lamp board can be significantly reduced. On the one hand, the area of the light-emitting region of the lamp board can be increased. On the other hand, the thinner thickness can improve the heat dissipation efficiency, and then a light source with a higher power can be adopted to improve the lighting brightness.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a single-chamber large explosion-proof lamp, including a lamp board. A lamp groove is provided on the front surface of the lamp board. A light source circuit board is provided in the lamp groove, and a transparent plate is provided at the notch of the lamp groove. A through hole communicating to the back surface is provided at the bottom of the lamp groove, and a fastening device is butted at the outer port of the through hole.

[0005] By arranging a lamp groove on the front surface of the lamp board, arranging a light source circuit board in the lamp groove, and then setting a transparent plate, the overall structure is more flattened, which can increase the light-emitting area of the light source. At the same time, the flattened design can improve the overall heat dissipation efficiency, enable the use of a light source with a higher power to improve the lighting brightness, and at the same time, the fastening device can lock the wire harness more firmly on the lamp board.

[0006] Preferably, the fastening device includes a connecting pipe, an inner connecting pipe, an expansion pipe, a pressing ring and a threaded sleeve. The front end of the connecting pipe is in threaded fit with the outer port of the through hole. The inner connecting pipe is sleeved inside the connecting pipe. A pushing platform is provided on the periphery of the expansion pipe. The front end of the expansion pipe is sleeved inside the rear end of the inner connecting pipe. The outer wall of the rear end of the expansion pipe is set as a conical surface, and the pressing ring is sleeved outside the conical surface. A terminal platform is provided on the inner wall of the front end of the threaded sleeve. The front end of the threaded sleeve is in threaded fit with the rear end of the connecting pipe, and the terminal platform abuts against the pressing ring.

[0007] The connecting pipe is in threaded fit with the through hole, and the threaded sleeve is with the rear end of the connecting pipe. Therefore, when the threaded sleeve is rotated, the pressing ring and the expansion pipe can be pushed inward. When the expansion pipe moves inward, under the extrusion of the inner connecting pipe, the expansion pipe will contract and squeeze inward, thereby quickly fixing the wire harness located inside the expansion pipe.

[0008] Preferably, the inner wall of the connecting pipe includes a tapered hole with a thin front end and a thick rear end, and the outer wall of the inner pipe is configured as an outer tapered wall adapted to the tapered hole. By adopting the cooperation of the tapered hole and the outer tapered wall, when the pressure ring is pushed inward, the inner pipe will be squeezed inward by the connecting pipe, thereby forming a locking inside.

[0009] Preferably, the rear end of the expansion tube is made of rubber material, which has the property of shrinkage and can better meet the demand of expansion.

[0010] Preferably, the outer periphery of the transparent plate is provided with an outer frame, the outer frame has a flap extending into the lamp slot, the end of the flap is provided with a hook outwardly, and the side wall of the lamp slot is provided with a side groove corresponding to the hook. The outer frame can improve the strength of the transparent plate and better fix it in the side groove.

[0011] Preferably, the inner wall of the outer frame is provided with an inner sunken platform, the transparent plate is embedded in the inner sunken platform, the clamping flap is provided with an inner hook inwardly, and an annular pressing sheet is provided between the inner hook and the transparent plate. By providing the inner sunken platform, the inner hook can conveniently fix the transparent plate in the outer frame.

[0012] Preferably, the notch of the lamp trough is provided with an outer sunken platform, and the outer frame is provided with a clamping plate corresponding to the outer sunken platform. The clamping plate can be used to fix the outer frame at two points of the structure hook, and the outer sunken platform structure can prevent the outer frame from protruding from the lamp board.

[0013] Preferably, the inner corners of the outer frame and the outer frame are provided with sealing rings in contact with the lamp slot. The use of sealing rings can improve the sealing performance of the lamp panel and better adapt to the harsh outdoor environment.

[0014] Preferably, a plurality of radially distributed heat dissipation fins are provided on the back of the lamp board outside the through hole to improve the heat dissipation effect of the light source circuit board and enhance the strength of the lamp board.

[0015] Preferably, a distance is left between the inner end of the heat dissipation fin and the through hole. At this time, the best heat dissipation effect is where the heat dissipation fins are arranged on the periphery of the light board surface, and the heat will be transferred to the periphery to avoid heat accumulation on the periphery of the through hole.

[0016] Beneficial effects of the present invention:

[0017] This solution adopts a structure of setting a lamp groove on the lamp board, which can significantly reduce the thickness of the lamp board. On the one hand, it can increase the area of ​​the light-emitting area of ​​the lamp board. On the other hand, the thinner thickness can improve the heat dissipation efficiency, thereby adopting a higher-power light source to improve the lighting brightness. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only three of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is a cross-sectional view of an embodiment of the present invention;

[0020] Figure 2 It is an external schematic diagram of an embodiment of the present invention;

[0021] Figure 3 It is a schematic diagram of the fastening device of an embodiment of the present invention;

[0022] Among them, the lamp board 1, the heat dissipation fins 2, the U-shaped bracket 3, the fastening device 4, the through hole 5, the transparent plate 6, the outer frame 7, the lamp slot 8, the annular pressing piece 9, the clamping flap 10, the clamping plate 11, the sealing ring 12, the inner connecting pipe 13, the connecting pipe 14, the expansion pipe 15, the pressing ring 16, the threaded sleeve 17. Specific embodiments

[0023] To deepen the understanding of the present invention, the following will further describe the present invention in detail with reference to the drawings and embodiments. This embodiment is only used to explain the present invention and does not limit the protection scope of the present invention.

[0024] Embodiment

[0025] As Figure 1 shown, a single-chamber large explosion-proof lamp includes a lamp board 1. A lamp slot 8 is provided on the front surface of the lamp board 1. A light source circuit board is provided in the lamp slot 8. A transparent plate 6 is provided at the notch of the lamp slot 8; a through hole 5 communicating with the back surface is provided at the bottom of the lamp slot 8, and an external port of the through hole 5 is butted with a fastening device 4. The light source circuit board is connected to an external power supply through a wire harness. The light source is separated from the lamp board 1.

[0026] By providing a lamp slot 8 on the front surface of the lamp board 1, providing a light source circuit board in the lamp slot 8, and then providing a transparent plate 6, the overall structure is more flattened, which can increase the light-emitting area of the light source. At the same time, the flattened design can improve the overall heat dissipation efficiency, enable the use of a higher-power light source, improve the lighting brightness, and at the same time, the fastening device 4 can lock the wire harness more firmly on the lamp board 1.

[0027] The fastening device 4 includes a connecting pipe 14, an inner connecting pipe 13, an expansion pipe 15, a pressing ring 16 and a threaded sleeve 17. The front end of the connecting pipe 14 is in threaded fit with the outer port of the through hole 5. The inner connecting pipe 13 is sleeved inside the connecting pipe 14. A pushing platform is provided on the periphery of the expansion pipe 15. The front end of the expansion pipe 15 is sleeved inside the rear end of the inner connecting pipe 13. The outer wall of the rear end of the expansion pipe 15 is a conical surface. The pressing ring 16 is sleeved outside the conical surface. A terminal platform is provided on the inner wall of the front end of the threaded sleeve 17. The front end of the threaded sleeve 17 is in threaded fit with the rear end of the connecting pipe 14. The terminal platform abuts against the pressing ring 16.

[0028] The connecting pipe 14 is in threaded fit with the through hole 5, and the threaded sleeve 17 is at the rear end of the connecting pipe 14. Therefore, when the threaded sleeve 17 is rotated, the pressing ring 16 and the expansion pipe 15 can be pushed inward. When the expansion pipe 15 moves inward, under the extrusion of the inner connecting pipe 13, the expansion pipe 15 will contract and squeeze inward, thereby quickly fixing the wire harness located inside the expansion pipe 15.

[0029] The inner wall of the connecting pipe 14 includes a tapered hole that is thin at the front end and thick at the rear end. The outer wall of the inner connecting pipe 13 is an outer tapered wall adapted to the tapered hole. By adopting the cooperation of the tapered hole and the outer tapered wall, when the pressing ring 16 is pushed inward, the inner connecting pipe 13 will be squeezed inward by the connecting pipe 14, thereby forming a lock on the inside.

[0030] The rear end of the expansion pipe 15 is made of rubber material. The rubber material has the property of shrinking, which better adapts to the expansion requirements.

[0031] An outer frame 7 is provided on the periphery of the transparent plate 6. The outer frame 7 extends inward into the lamp slot 8 with a clamping flap 10. The end of the clamping flap 10 is provided with a clamping hook outward. A side slot is provided on the side wall of the lamp slot 8 corresponding to the clamping hook. By providing the outer frame 7, the strength of the transparent plate 6 can be improved, and at the same time, it can be better fixed in the side slot.

[0032] An inner sunk platform is provided on the inner wall of the outer frame 7. The transparent plate 6 is embedded in the inner sunk platform. The clamping flap 10 is provided with an inner hook inward. An annular pressing piece 9 is provided between the inner hook and the transparent plate 6. By providing the inner sunk platform, the inner hook can easily fix the transparent plate 6 inside the outer frame 7.

[0033] An outer sunk platform is provided at the notch of the lamp slot 8. The outer frame 7 is provided with a clamping plate 11 corresponding to the outer sunk platform. By providing the clamping plate 11, the outer frame 7 can be fixed by the two clamping hooks of the structure, and the outer sunk platform structure can prevent the outer frame 7 from protruding from the lamp panel 1.

[0034] A sealing ring 12 in contact with the lamp slot 8 is provided at the inner corner of the outer frame 7 and the outer frame 7. By adopting the sealing ring 12, the sealing performance of the lamp panel 1 can be improved, and it can better adapt to the harsh outdoor environment.

[0035] On the back of the lamp board 1 around the through hole 5, a number of radially distributed heat dissipation fins 2 are provided. The heat dissipation fins 2 improve the heat dissipation effect of the light source circuit board. At the same time, the heat dissipation fins 2 can enhance the strength of the lamp board 1. A spacing is left between the inner end of the heat dissipation fin 2 and the through hole 5. At this time, the best heat dissipation effect is at the place where the heat dissipation fins 2 are arranged on the periphery of the plane of the lamp board 1, and the heat will transfer to the periphery, avoiding heat accumulation around the through hole 5.

[0036] Both ends of the U-shaped bracket 3 are respectively hinged to both sides of the lamp board 1.

[0037] This solution adopts the structure of arranging a lamp groove 8 on the lamp board 1, which can significantly reduce the thickness of the lamp board 1. On the one hand, it can increase the area of the light-emitting area of the lamp board 1. On the other hand, the thinner thickness can improve the heat dissipation efficiency, and then a light source with a higher power can be adopted to improve the illumination brightness.

[0038] The above embodiments should not limit the present invention in any way. All technical solutions obtained by means of equivalent replacement or equivalent conversion fall within the protection scope of the present invention.

Claims

1. A single-chamber large explosion-proof lamp, characterized in that, It includes a lamp board (1). On the front surface of the lamp board (1), there is a lamp slot (8). Inside the lamp slot (8), there is a light source circuit board, and a transparent plate (6) is provided at the notch of the lamp slot (8). At the bottom of the lamp slot (8), there is a through hole (5) communicating with the back surface. An outer port of the through hole (5) is docked with a fastening device (4). The fastening device (4) includes a connecting pipe (14), an inner connecting pipe (13), an expansion pipe (15), a pressing ring (16), and a threaded sleeve (17). The front end of the connecting pipe (14) is in threaded fit with the outer port of the through hole (5). The inner connecting pipe (13) is sleeved inside the connecting pipe (14). There is a pushing platform on the periphery of the expansion pipe (15). The front end of the expansion pipe (15) is sleeved inside the rear end of the inner connecting pipe (13). The outer wall of the rear end of the expansion pipe (15) is set as a conical surface, and the pressing ring (16) is sleeved outside the conical surface. There is an end platform on the inner wall of the front end of the threaded sleeve (17). The front end of the threaded sleeve (17) is in threaded fit with the rear end of the connecting pipe (14), and the end platform abuts against the pressing ring (16).

2. The single-chamber large explosion-proof lamp according to claim 1, wherein: The inner wall of the connecting pipe (14) includes a tapered hole that is thin at the front end and thick at the rear end. The outer wall of the inner connecting pipe (13) is set as an outer conical wall adapted to the tapered hole.

3. The single-chamber large explosion-proof lamp according to claim 2, wherein: The rear end of the expansion pipe (15) is made of rubber material.

4. A single-chamber large explosion-proof lamp according to claim 1, characterized in that: An outer frame (7) is provided around the transparent plate (6). The outer frame (7) extends inward into the lamp slot (8) with clamping petals (10). Hooks are provided outward at the ends of the clamping petals (10), and side slots are provided on the side wall of the lamp slot (8) corresponding to the hooks.

5. The single-chamber large explosion-proof lamp according to claim 4, characterized in that: There is an inner sunk platform on the inner wall of the outer frame (7). The transparent plate (6) is embedded in the inner sunk platform. Inner hooks are provided inward on the clamping petals (10), and an annular pressing sheet (9) is provided between the inner hooks and the transparent plate (6).

6. The single-chamber large explosion-proof lamp according to claim 5, wherein: There is an outer sunk platform at the notch of the lamp slot (8), and a clamping plate (11) is provided on the outer frame (7) corresponding to the outer sunk platform.

7. The single-chamber large explosion-proof lamp according to claim 6, characterized in that: At the inner corner of the outer frame (7) and the outer frame (7), there is a sealing ring (12) in contact with the lamp slot (8).

8. A single-chamber large explosion-proof lamp according to claim 1, characterized in that: On the back surface of the lamp board (1) around the through hole (5), there are a number of radially distributed heat dissipation fins (2).

9. The single-chamber large explosion-proof lamp according to claim 8, wherein: There is a gap left between the inner end of the heat dissipation fin (2) and the through hole (5).

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