Explosion-proof HMS indicating lamp

Abstract

The utility model discloses an explosion-proof HMS indicating lamp which comprises a shell, an upper cover and a lampshade, the lampshade is fixed on the upper cover, the upper cover is fixed on the shell, a light source plate, a reflection cup and a radiator are arranged in the shell, the lampshade is fixed on the upper cover through a threaded pressing ring, the lampshade and the upper cover are sealed through glue, and the lampshade is fixed on the upper cover through a threaded pressing ring. The upper cover and the shell are sealed through a labyrinth structure and a sealing ring. According to the explosion-proof HMS indicating lamp provided by the utility model, the lampshade is fixed on the upper cover through the threaded pressing ring, and the lampshade and the upper cover are sealed through the glue seal; the upper cover and the shell are sealed through a labyrinth structure and a sealing ring, so that the lamp meets the requirement of the protection grade IP66 / IP67, and the use requirement under the severe environment is met.

Description

Technical Field

[0001] The utility model relates to a navigation lighting device, in particular to an explosion-proof HMS (helicopter deck monitoring system) indicator light. Background Art

[0002] The explosion-proof HMS indicator light is used on various offshore platforms (Zone I, Zone II and conventional environments with explosive gas environments). It is installed on the helicopter deck to provide real-time feedback on the movement status of the helicopter deck and the wind conditions near the platform, and convert this information into color information that the helicopter pilot can recognize.

[0003] Helicopter platforms are usually open-air and need to be cleaned with high-pressure water guns; therefore, there are high requirements for the protection level of lamps installed on helicopter platforms. At the same time, helicopter platforms are generally aluminum platforms or steel platforms. After being exposed to the sun in summer, the surface temperature of the deck is very high, which places high requirements on the heat dissipation performance of lamps installed on the deck. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an explosion-proof HMS indicator light, which has a higher protection level and meets the use requirements in harsh environments.

[0005] The technical solution adopted by the utility model to solve the above technical problems is to provide an explosion-proof HMS indicator light, including a shell, an upper cover and a lampshade, wherein the lampshade is fixed on the upper cover, the upper cover is fixed on the shell, a light source board, a reflective cup and a radiator are arranged in the shell, wherein the lampshade is fixed on the upper cover by a threaded pressing ring, the lampshade and the upper cover are sealed by a glue seal, and the upper cover and the shell are sealed by a labyrinth structure and a sealing ring.

[0006] Furthermore, the maze structure includes a first boss and a second boss abutting against each other, the first boss is located on the upper cover, the second boss is located on the shell, the upper cover is provided with a groove for accommodating the second boss, the second boss is located on the inner side of the first boss, and the sealing ring is located on the outer side of the first boss.

[0007] Furthermore, a flange covering the shell is formed on the upper cover.

[0008] Furthermore, the reflective cup is mounted on the light source board, the light source board is mounted on the radiator, the radiator is mounted on the shell, and the shell is provided with a plurality of heat dissipation ribs arranged along the circumferential direction.

[0009] Furthermore, the plane where the light source board is located is not lower than the surface of the upper cover.

[0010] Furthermore, the heat sink, upper cover and shell are all made of aluminum alloy.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the explosion-proof HMS indicator light provided by the utility model has a lampshade fixed on the upper cover by a threaded pressure ring, and the lampshade and the upper cover are sealed by a glue seal; a labyrinth structure and a sealing ring are used to seal the upper cover and the shell, so that the lamp meets the protection level IP66 / IP67 requirements and meets the use requirements in harsh environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of the explosion-proof HMS indicator light of the utility model;

[0013] Figure 2 This is a schematic diagram of the bottom structure of the explosion-proof HMS indicator light of the utility model;

[0014] Figure 3 This is a schematic diagram of the cross-sectional structure of the explosion-proof HMS indicator light of the utility model;

[0015] Figure 4 for Figure 3 An enlarged structural diagram of the sealing connection between the upper cover and the shell.

[0016] The markings in the figure are:

[0017] 1. Shell; 2. Upper cover; 3. Light source board; 4. Lampshade; 5. Reflector cup; 6. Radiator; 7. Mounting plate; 8. Sealing ring; 9. Heat dissipation rib; 10. Flanging; 11. First boss; 12. Second boss; 13. Threaded pressing ring; 14. Glue seal; 15. Cable entry device; 16. Groove. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of the explosion-proof HMS indicator light of the utility model; Figure 2 This is a schematic diagram of the bottom structure of the explosion-proof HMS indicator light of the utility model; Figure 3 This is a schematic diagram of the cross-sectional structure of the explosion-proof HMS indicator light of the utility model.

[0020] See also Figure 1 , Figure 2 and Figure 3The explosion-proof HMS indicator light provided by the utility model includes a shell 1, an upper cover 2 and a lampshade 4, wherein the lampshade 4 is fixed on the upper cover 2, the upper cover 2 is fixed on the shell 1, and a light source board 3, a reflective cup 5 and a radiator 6 are arranged in the shell 1, wherein the lampshade 4 is fixed on the upper cover 1 by a threaded pressing ring 13, the lampshade 4 and the upper cover 2 are sealed by a glue seal 14, and the upper cover 2 and the shell 1 are sealed by a labyrinth structure and a sealing ring 8.

[0021] The utility model provides an explosion-proof HMS indicator light, wherein the labyrinth structure includes a first boss 11 and a second boss 12 abutting against each other, the first boss 11 is located on the upper cover 2, the second boss 12 is located on the housing 1, the upper cover 2 is provided with a groove 16 for accommodating the second boss 12, the second boss 12 is located on the inner side of the first boss 11, and the sealing ring 8 is located on the outer side of the first boss 11, such as Figure 4 Preferably, a flange 10 covering the shell 1 is formed on the upper cover 1 to further enhance the sealing performance.

[0022] The explosion-proof HMS indicator light provided by the utility model, wherein the reflective cup 5 is mounted on the light source board 3, the light source board 3 is mounted on the radiator 6, the radiator 6 is mounted on the housing 1, and the housing 1 is provided with a plurality of heat dissipation ribs 9 arranged along the circumferential direction, so that the heat dissipation surface area of ​​the housing 1 is greatly increased, and the heat generated by the light source can be quickly dissipated into the air. The plane where the light source board 3 is located is not lower than the surface of the upper cover 2 to avoid optical effects.

[0023] The explosion-proof HMS indicator light provided by the utility model is characterized in that the radiator 6, the upper cover 2 and the housing 1 are all made of aluminum alloy, which has strong heat conduction capacity. A cable introduction device 15 and a mounting plate 7 are arranged below the housing 1; the number of the cable introduction devices 15 is two to facilitate wiring. The mounting plate 7 preferably has a plurality of extension arms to ensure better fit to the deck for installation.

[0024] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art may make some modifications and improvements without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the definition of the claims.

Claims

1. An explosion-proof HMS indicator light, comprising a housing (1), an upper cover (2) and a lampshade (4), wherein the lampshade (4) is fixed on the upper cover (2), the upper cover (2) is fixed on the housing (1), and a light source board (3), a reflective cup (5) and a heat sink (6) are arranged in the housing (1), characterized in that: The lampshade (4) is fixed to the upper cover (2) via a threaded pressing ring (13); the lampshade (4) and the upper cover (2) are sealed via a glue seal (14); and the upper cover (2) and the housing (1) are sealed via a labyrinth structure and a sealing ring (8).

2. The explosion-proof HMS indicator light according to claim 1, characterized in that: The labyrinth structure comprises a first boss (11) and a second boss (12) abutting against each other, the first boss (11) being located on the upper cover (2), the second boss (12) being located on the shell (1), the upper cover (2) being provided with a groove (16) for accommodating the second boss (12), the second boss (12) being located on the inner side of the first boss (11), and the sealing ring (8) being located on the outer side of the first boss (11).

3. The explosion-proof HMS indicator light according to claim 1, characterized in that: The upper cover (2) is formed with a flange (10) covering the shell (1).

4. The explosion-proof HMS indicator light according to claim 1, characterized in that: The reflective cup (5) is mounted on a light source board (3), the light source board (3) is mounted on a heat sink (6), the heat sink (6) is mounted on a housing (1), and the housing (1) is provided with a plurality of heat dissipation ribs (9) arranged in a circumferential direction.

5. The explosion-proof HMS indicator light according to claim 1, characterized in that: The plane where the light source plate (3) is located is not lower than the surface of the upper cover (2).

6. The explosion-proof HMS indicator light according to claim 1, characterized in that: The heat sink (6), the upper cover (2) and the housing (1) are all made of aluminum alloy.

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