A small explosion-proof indicator light

Abstract

This utility model discloses a small explosion-proof indicator light, comprising: a lampshade, an indicator light, a circuit board, and a fixed base. The upper end of the fixed base extends into the lampshade, the circuit board is disposed within the fixed base, and the indicator light is disposed within the lampshade and located at the upper end of the fixed base. The lower end of the indicator light is connected to the upper end of the circuit board. Through the application of this utility model, a small explosion-proof indicator light is proposed. Its lampshade is injection molded from high-polymer plastic material. Compared with traditional metal-cased explosion-proof indicator lights, it helps to reduce the overall weight and volume of the explosion-proof light, making it easier to install and transport, reducing the labor intensity of installers, and expanding its application range in places with strict weight restrictions. Furthermore, by setting a threaded portion and an O-ring seal, it can effectively enhance the sealing between the lampshade and the explosion-proof cover, further improving the explosion-proof performance.

Description

Technical Field

[0001] This utility model relates to the field of lighting equipment technology, and in particular to a small explosion-proof indicator light. Background Technology

[0002] Currently, explosion-proof indicator lights are widely used in various hazardous environments, such as chemical, petroleum, and coal mining industries. These locations, due to the presence of flammable and explosive gases or dust, require extremely high explosion-proof performance from the indicator lights. Therefore, to meet these requirements, most existing explosion-proof indicator lights use metal housings. However, while metal can meet explosion-proof requirements to a certain extent, it is heavy, which not only makes installation difficult and increases the workload for installers, but also may not meet the requirements for some special installation locations with strict weight restrictions. Furthermore, metal housings are bulky, occupying a large area during installation, a problem particularly prominent in space-constrained locations, limiting the application scenarios of the indicator lights. Utility Model Content

[0003] In view of this, in order to solve the above problems, the purpose of this utility model is to provide a small explosion-proof indicator light, including: a lampshade, an indicator light, a circuit board and a fixed base, the upper end of the fixed base extending into the lampshade, the circuit board being disposed in the fixed base, the indicator light being disposed in the lampshade and located at the upper end of the fixed base, and the lower end of the indicator light being connected to the upper end of the circuit board.

[0004] In another preferred embodiment, the lampshade includes a threaded portion having an external thread, the upper end of the fixed base extending into the threaded portion, and the indicator light disposed within the threaded portion.

[0005] In another preferred embodiment, the lampshade further includes: a cover body and a limiting block, the lower end of the cover body being connected to the upper end of the threaded portion, the limiting block being disposed on the outer edge of the cover body, and the cover body passing through the limiting block.

[0006] In another preferred embodiment, it further includes an O-ring, which is fitted around the threaded portion, with the upper end of the O-ring abutting against the lower end of the cover.

[0007] In another preferred embodiment, it further includes: a connecting sleeve, the upper end of which is connected to the lower end of the threaded portion, the upper end of the fixed base passing through the connecting sleeve, and the connecting sleeve engaging with the fixed base.

[0008] In another preferred embodiment, the outer wall of the connecting sleeve is provided with several slots.

[0009] In another preferred embodiment, the outer wall of the fixed base has a snap-fit ​​portion, which is disposed within the snap-fit ​​groove.

[0010] In another preferred embodiment, the snap-fit ​​portion is elastic.

[0011] In another preferred embodiment, the lampshade is injection molded from a polymer plastic material.

[0012] The present invention, by adopting the above-mentioned technical solution, has the following positive effects compared with the prior art: Through the application of the present invention, a small explosion-proof indicator light is proposed. Its lampshade is injection molded from high-polymer plastic material. Compared with traditional metal-cased explosion-proof indicator lights, it helps to reduce the overall weight and volume of the explosion-proof light, making it easier to install and transport, reducing the labor intensity of installers, and expanding its application range in places with strict weight restrictions. Furthermore, by setting threaded portions and O-rings, it can effectively enhance the sealing between the lampshade and the explosion-proof cover, further improving the explosion-proof performance. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of a small explosion-proof indicator light according to the present invention;

[0014] Figure 2 This is a front view of a small explosion-proof indicator light according to the present invention;

[0015] Figure 3 This is a cross-sectional view of a small explosion-proof indicator light according to the present invention;

[0016] Figure 4 This is an installation diagram of a small explosion-proof indicator light according to this utility model.

[0017] In the attached image:

[0018] 1. Lampshade; 2. Indicator light; 3. Circuit board; 4. Fixing base; 5. O-ring seal; 6. Connecting sleeve; 7. Explosion-proof cover; 11. Threaded part; 12. Cover body; 13. Limiting block; 61. Slot. Detailed Implementation

[0019] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0020] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "back", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0021] It should be noted that the terms "horizontal" and "vertical" in this utility model are used to describe approximate positional relationships, and not strictly "horizontal plane" or "vertical plane".

[0022] like Figure 1-4 As shown, a preferred embodiment of a small explosion-proof indicator light includes: a lampshade 1, an indicator light 2, a circuit board 3, and a mounting base 4. The upper end of the mounting base 4 extends into the lampshade 1. The circuit board 3 is disposed within the mounting base 4 and is used to provide a stable current to the indicator light 2 to ensure that the indicator light 2 illuminates normally. The indicator light 2 is disposed within the lampshade 1 and located at the upper end of the mounting base 4. The lower end of the indicator light 2 is connected to the upper end of the circuit board 3.

[0023] Furthermore, in a preferred embodiment, the lampshade 1 includes a threaded portion 11, on which an external thread is provided. The upper end of the fixing base 4 extends into the threaded portion 11, and the indicator light 2 is disposed within the threaded portion 11. Further, the threaded portion 11 is threadedly connected to the external explosion-proof cover 7 via the external thread.

[0024] Furthermore, in a preferred embodiment, the lampshade 1 further includes a cover body 12 and a limiting block 13. The lower end of the cover body 12 is connected to the upper end of the threaded portion 11, and the limiting block 13 is disposed on the outer edge of the cover body 12, through which the cover body 12 passes. Further, the cover body 12 is used to protect the indicator light 2 from interference with its normal operation by external factors, while the limiting block 13 is used to restrict the axial movement of the cover body 12, thereby ensuring the stability of the overall structure of the lampshade 1.

[0025] Furthermore, as a preferred embodiment, it also includes an O-ring seal 5, which is sleeved around the threaded portion 11, with its upper end abutting against the lower end of the cover 12. Furthermore, the O-ring seal 5 enhances the sealing between the lamp cover 1 and the explosion-proof cover 7, thereby preventing external flammable and explosive gases from entering the interior of the cover 12, which helps improve the explosion-proof performance of the lamp cover 1.

[0026] Furthermore, as a preferred embodiment, it also includes: a connecting sleeve 6, the upper end of which is connected to the lower end of the threaded portion 11, the upper end of the fixing base 4 passing through the connecting sleeve 6, and the connecting sleeve 6 engaging with the fixing base 4.

[0027] Furthermore, as a preferred embodiment, the connecting sleeve 6 and the threaded portion 11 are preferably integrally formed.

[0028] Furthermore, as a preferred embodiment, the outer wall of the connecting sleeve 6 is provided with a plurality of slots 61.

[0029] Furthermore, as a preferred embodiment, the outer wall of the fixed base 4 has a snap-fit ​​portion, which is disposed within the slot 61. Furthermore, the snap-fit ​​portion engaging with the slot 61 ensures that the connection between the fixed base 4 and the connecting sleeve 6 is both secure and easy to install and disassemble.

[0030] Furthermore, as a preferred embodiment, the snap-fit ​​portion is elastic. This elasticity ensures that the snap-fit ​​portion can be tightly engaged within the slot 61, thereby helping to prevent the fixed base 4 from loosening and falling off during use.

[0031] Furthermore, as a preferred embodiment, the lampshade 1 is injection molded from a polymer plastic material. Furthermore, the threaded portion 11, the cover 12, the limiting block 13, and the connecting sleeve 6 are all made of polymer plastic material, and the threaded portion 11, the cover 12, the limiting block 13, and the connecting sleeve 6 are integrally molded.

[0032] The working principle of this utility model is as follows: In use, the O-ring 5 can be first fitted onto the outer periphery of the threaded part 11 of the lamp cover 1, and then the lamp cover 1 can be inserted into the threaded hole on the explosion-proof cover plate 7. By manually rotating the lamp cover 1, the external thread of the threaded part 11 can be engaged with the thread in the threaded hole of the explosion-proof cover plate 7, so that the threaded part 11 and the explosion-proof cover plate 7 can be tightly engaged. Then, the circuit board 3 can be inserted into the fixed base 4, and then the circuit board 3 can be connected to the indicator light 2. After the circuit board 3 and the indicator light 2 are connected, the snap-fit ​​part of the fixed base 4 can be snapped into the slot of the connecting sleeve 6 from the lower end of the explosion-proof cover plate 7. After snap-fit, the circuit board 3 can be powered, so that the circuit board 3 can provide a stable current to the indicator light 2, and the indicator light 2 will light up stably.

[0033] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A small explosion-proof indicator light, characterized in that, include: The lampshade, indicator light, circuit board, and mounting base are provided. The upper end of the mounting base extends into the lampshade. The circuit board is disposed within the mounting base. The indicator light is disposed within the lampshade and located at the upper end of the mounting base. The lower end of the indicator light is connected to the upper end of the circuit board.

2. The miniature explosion-proof indicator light according to claim 1, characterized in that, The lampshade includes a threaded portion, on which an external thread is provided, the upper end of the fixed base extends into the threaded portion, and the indicator light is disposed within the threaded portion.

3. The miniature explosion-proof indicator light according to claim 2, characterized in that, The lampshade further includes: a cover body and a limiting block, the lower end of the cover body is connected to the upper end of the threaded portion, the limiting block is disposed on the outer edge of the cover body, and the cover body passes through the limiting block.

4. The miniature explosion-proof indicator light according to claim 3, characterized in that, Also includes: An O-ring is fitted around the threaded portion, with the upper end of the O-ring abutting against the lower end of the cover.

5. The miniature explosion-proof indicator light according to claim 2, characterized in that, Also includes: A connecting sleeve, the upper end of which is connected to the lower end of the threaded portion, the upper end of which passes through the connecting sleeve, and the connecting sleeve engaging with the fixed base.

6. The miniature explosion-proof indicator light according to claim 5, characterized in that, The outer wall of the connecting sleeve is provided with several slots.

7. The miniature explosion-proof indicator light according to claim 6, characterized in that, The outer wall of the fixed base has a snap-fit ​​part, which is disposed in the slot.

8. The miniature explosion-proof indicator light according to claim 7, characterized in that, The snap-fit ​​part is elastic.

9. The miniature explosion-proof indicator light according to claim 1, characterized in that, The lampshade is made of high-polymer plastic injection molding.

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