Explosion-proof lamp capable of bearing high impact grade

Abstract

The utility model relates to the technical field of lighting equipment, in particular to an explosion-proof lamp capable of bearing a high impact grade, which comprises a light source cavity shell, a light source cavity upper cover, toughened glass, a sealing ring and a gasket, the sealing ring is arranged on a sealing groove of the light source cavity shell, the tempered glass is arranged on the sealing ring, the gasket is arranged on the light source cavity upper cover, and the light source cavity shell and the light source cavity upper cover are installed together in an up-down contact mode. According to the utility model, the impact resistance grade can reach 20 joules; the high-temperature-resistant reliability is high, the lighting effect is high, and maintenance is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting equipment, in particular to an explosion-proof lamp capable of withstanding high impact levels. Background Art

[0002] Existing explosion-proof lamps use two types of transparent components: glass and polycarbonate (PC). PC can withstand a 20-joule impact test, but PC has several drawbacks: 1. It's prone to static electricity, requiring anti-static accessories. 2. PC has a lower temperature resistance, typically 110°C, while glass can withstand 500°C, posing a significant safety hazard when used in high-power lamps at high temperatures. 3. Dust accumulates during daily use, significantly reducing light transmittance after wiping. PC itself has lower light transmittance than glass, so explosion-proof lamps using PC as the transparent component generally have lower luminous efficacy. When the transparent component is glass, current explosion-proof lamps generally only meet a 4-joule impact test. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide an explosion-proof lamp that can withstand high impact levels, which can meet the impact resistance level of 20 joules; and has high temperature resistance, high reliability, high luminous efficiency, and easy maintenance.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: it includes a light source cavity shell and a light source cavity upper cover, tempered glass, a sealing ring and a gasket are arranged between the light source cavity shell and the light source cavity upper cover, a sealing groove is provided in the light source cavity shell, the sealing ring is installed in the sealing groove, and the tempered glass is installed above the sealing ring; the gasket is arranged on the light source cavity upper cover, and the light source cavity shell and the light source cavity upper cover are installed together in contact with each other from top to bottom.

[0005] As a preferred solution of the explosion-proof lamp capable of withstanding high impact levels of the present invention, the edges and corners of the tempered glass are configured to be trimmed and rounded.

[0006] As a preferred solution of the explosion-proof lamp capable of withstanding high impact levels of the present invention, the thickness of the tempered glass is 3-8 mm.

[0007] As a preferred solution of the explosion-proof lamp capable of withstanding high impact levels of the present invention, the cross section of the sealing ring is circular and the sealing ring is a silicone rubber sealing ring.

[0008] As a preferred solution of the explosion-proof lamp capable of withstanding high impact levels of the utility model, the hardness of the sealing ring is 45-65 and the thickness is 4-6 mm.

[0009] As a preferred solution of the explosion-proof lamp capable of withstanding high impact levels of the utility model, the gasket is a fluorosilicone gasket; the gasket is adhered to the upper cover of the light source cavity with adhesive on one side.

[0010] As a preferred solution of the explosion-proof lamp capable of withstanding high impact levels of the present invention, the pads include horizontal pads arranged on the left and right sides and vertical pads arranged on the front and rear ends.

[0011] As a preferred solution of the explosion-proof lamp capable of withstanding high impact levels of the utility model, the hardness of the liner is 60-80 and the thickness is 1-1.5 mm.

[0012] As a preferred solution for the explosion-proof lamp capable of withstanding high impact levels of the present invention, a limiting structure is provided on the light source cavity shell; the light source cavity shell and the light source cavity upper cover are fastened and installed with light source cavity cover fasteners.

[0013] As a preferred solution for the explosion-proof lamp capable of withstanding high impact levels described in the utility model, a steel wire shield is provided on the outside of the upper cover of the light source cavity, and the upper cover of the light source cavity and the steel wire shield are fastened and installed with steel wire shield fasteners.

[0014] Compared with the prior art, the beneficial effects of the present invention are: the present invention can meet the impact resistance level of 20 joules; and has high high temperature resistance, high light efficiency, and easy maintenance.

[0015] This new lamp utilizes a combination of tempered glass and a gasket and sealing ring, enabling a 4mm thick glass structure to withstand a 20-joule impact. However, conventional explosion-proof lamps require 19mm thick glass to withstand a 10-joule impact. This significantly reduces the lamp's weight. Compared to explosion-proof lamps using PC as transparent components, this new lamp boasts a 10% increase in light transmittance, requires no anti-static treatment, and is heat-resistant up to 500°C, significantly improving the reliability of the lamp. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0017] Figure 1 This is a schematic diagram of the cross-sectional structure of the utility model.

[0018] Figure 2 This is a schematic diagram of the decomposition structure of the utility model.

[0019] Figure 3 This is a schematic diagram of the front structure of the utility model.

[0020] Numbers in the figure: 1. Light source cavity shell; 2. Light source cavity upper cover; 3. Tempered glass; 4. Sealing ring; 5. Gasket; 6. Light source cavity cover fastener; 7. Steel wire guard; 8. Steel wire guard fastener; 11. Limiting structure; 51. Horizontal gasket; 52. Vertical gasket. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0022] Example 1

[0023] Reference Figure 1-3 This is the first embodiment of the present invention, which provides an explosion-proof lamp capable of withstanding high impacts, reaching a 20-joule impact rating. It also features high reliability, high light efficiency, and ease of maintenance. The lamp utilizes a 4mm glass structure capable of withstanding a 20-joule impact.

[0024] Specifically, it includes a light source cavity shell 1, a light source cavity cover 2, tempered glass 3, a sealing ring 4, and a gasket 5; the light source cavity shell 1 and the light source cavity cover 2 are installed together in contact with each other from top to bottom, the sealing ring 3 is set on the sealing groove of the light source cavity shell 1, the tempered glass 3 is set on the sealing ring 4, and the gasket 5 is set above the upper part of the light source cavity cover 2. The gasket 5 is a fluorosilicone gasket; the gasket 5 is adhered to the light source cavity cover 2 with a single-sided adhesive. The gasket 5 includes horizontal gaskets 51 set on the left and right sides and vertical gaskets 52 set at the front and back ends. The hardness of the gasket 5 is 60-80, the thickness is 1-1.5 mm, and the optimal value is 70, with a thickness of 1.2 mm.

[0025] Preferably, the edges and corners of the tempered glass 3 are rounded to avoid contact with the housing and stress concentration that may damage the glass. The thickness of the tempered glass 3 is 3-8 mm, with the optimal thickness being 4 mm and 5 mm.

[0026] Preferably, the sealing ring 4 has a circular cross-section and is made of silicone rubber. The hardness of the sealing ring 4 is 45-65, and the thickness is 4-6 mm, with the optimal value being 55 and the thickness being 5 mm. The sealing ring 4 not only achieves a high sealing grade IP67 but also provides cushioning.

[0027] Preferably, a limiting structure 11 is provided on the light source cavity housing 1 ; and the light source cavity housing 1 and the light source cavity upper cover 2 are fastened and installed with a light source cavity cover fastener 6 .

[0028] Preferably, a steel wire shield 7 is provided on the outside of the light source cavity upper cover 2 , and a steel wire shield fastener 8 is used to fasten the light source cavity upper cover 2 and the steel wire shield 7 .

[0029] The utility model assembles the shell with the light source cavity cover fastener 6. After the bolts are tightened, the light source cavity shell 1 contacts the light source cavity upper cover 2, and a limiting structure is provided on the shell. At this time, the gasket 5 and the sealing ring 4 are compressed to a certain extent. However, after compression, the tempered glass 3 only contacts the sealing ring 4 and the gasket 5, and does not contact the light source cavity shell 1. In this way, when subjected to impact, the sealing ring 4 and the gasket 5 play a buffering role and protect the tempered glass.

[0030] This new tempered glass is made using a special chemical process, tempered in high-temperature chemical reagents. The glass's high strength is achieved through surface ion exchange. In this explosion-proof lamp structure, the highest tested tempered glass, 4mm thick, can withstand a 20-joule impact strength.

[0031] The glass of this utility model is 5 mm thick, with an outer corner radius of 22.8, and adopts the CNC cutting and rounding R1.5 process. The process cannot leak the glass body. After tempering, it adopts homogenization treatment to eliminate internal stress.

[0032] Overall, the new 4mm tempered glass can withstand a 20-joule impact. Traditional explosion-proof lamps require 19mm thick glass to withstand a 10-joule impact. This significantly reduces the weight of the lamp. Field operations are subject to constant impact from various mobile devices. If the housing of an explosion-proof lamp is damaged by impact, the lamp's explosion-proof function will be lost. Therefore, high-impact explosion-proof lamps are particularly important in such situations.

[0033] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments may be modified or some or all of the technical features may be replaced with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An explosion-proof lamp capable of withstanding high impact levels, comprising a light source cavity housing (1) and a light source cavity upper cover (2), characterized in that: A tempered glass (3), a sealing ring (4) and a gasket (5) are provided between the light source cavity shell (1) and the light source cavity upper cover (2); a sealing groove is provided in the light source cavity shell (1), the sealing ring (4) is installed in the sealing groove, and the tempered glass (3) is installed above the sealing ring (4); the gasket (5) is provided on the light source cavity upper cover (2), and the light source cavity shell (1) and the light source cavity upper cover (2) are installed together in contact with each other from top to bottom.

2. The explosion-proof lamp capable of withstanding high impact levels according to claim 1, characterized in that: The corners of the tempered glass (3) are arranged to be trimmed and rounded.

3. The explosion-proof lamp capable of withstanding high impact levels according to claim 2, characterized in that: The thickness of the tempered glass (3) is 3-8 mm.

4. The explosion-proof lamp capable of withstanding high impact levels according to claim 3, characterized in that: The cross section of the sealing ring (4) is circular, and the sealing ring (4) is a silicone rubber sealing ring.

5. The explosion-proof lamp capable of withstanding high impact levels according to claim 3, characterized in that: The hardness of the sealing ring (4) is 45-65; the thickness is 4-6 mm.

6. The explosion-proof lamp capable of withstanding high impact levels according to claim 1 or 5, characterized in that: The liner (5) is a fluorosilicone liner; the liner (5) is glued on one side of the light source cavity upper cover (2).

7. The explosion-proof lamp capable of withstanding high impact levels according to claim 6, characterized in that: The pad (5) comprises transverse pads (51) arranged on the left and right sides and vertical pads (52) arranged on the front and rear ends.

8. The explosion-proof lamp capable of withstanding high impact levels according to claim 7, characterized in that: The hardness of the liner (5) is 60-80 and the thickness is 1-1.5 mm.

9. The explosion-proof lamp capable of withstanding high impact levels according to claim 8, characterized in that: A limiting structure (11) is provided on the light source cavity housing (1); and the light source cavity housing (1) and the light source cavity upper cover (2) are fastened and installed using a light source cavity cover fastener (6).

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