Explosion-proof luminaire

Abstract

The utility model provides an explosion -proof lamp. The explosion -proof lamp includes the lamp shell, lamp shade and lamp body, the lamp shell inside is empty cavity and one end opening, the lamp shade is connected at the lamp shell opening end and forms the lamp cavity between the lamp shell and lamp shade and the inside is empty cavity, the lamp body is connected at the lamp cavity, the lamp shell inboard has the protruding connecting along, the connecting along department also has the flexible gasket, the lamp shade brim and connecting along are connected through the fastener no.1 and the gasket is tightly pressed between connecting along and lamp shade, the lamp shade brim has the recessed dust collection groove, still include a supporting plate, the lamp body is fixedly connected on the supporting plate, the supporting plate and the bottom in the lamp shell are connected through the fastener no.2, the supporting plate brim has the folding contact along, the contact along and connecting along surface contact and contact along brim abuts at the fastener no.2 side part. The explosion -proof lamp can also be used stably in the vibration environment.

Description

Technical Field

[0001] This utility model relates to the field of lighting technology, and more specifically to explosion-proof lighting fixtures. Background Technology

[0002] Explosion-proof lighting fixtures are special lighting devices designed specifically for flammable and explosive hazardous environments. They can operate safely in environments containing combustible gases, vapors, dust, or fibers, effectively preventing the fixture itself from becoming an ignition source and thus avoiding explosion accidents.

[0003] These types of lamps are widely used in high-risk environments such as petroleum, chemical, natural gas, coal mines, pharmaceutical, grain processing, and painting workshops.

[0004] Existing explosion-proof lights primarily improve the strength of the lamp housing and lampshade to make them suitable for corresponding high-risk environments. However, when exposed to vibration, the lamp body located inside the housing may loosen, resulting in relatively poor stability. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned problems in existing technologies by providing an explosion-proof lighting fixture that can maintain its stability when subjected to vibration.

[0006] To achieve the above objectives, this utility model can be implemented through the following technical solutions:

[0007] An explosion-proof lighting fixture includes a lamp housing, a lamp shade, and a lamp body. The lamp housing has an internal cavity and is open at one end. The lamp shade is connected to the open end of the lamp housing, forming a hollow lamp cavity between the lamp housing and the lamp shade. The lamp body is connected to the lamp cavity. The lamp housing has a protruding connecting edge on its inner side, and a flexible gasket is provided at the connecting edge. The edge of the lamp shade is connected to the connecting edge by a fastener, and the gasket is pressed tightly between the connecting edge and the lamp shade. The edge of the lamp shade has a recessed dust collection groove. The fixture also includes a support plate. The lamp body is fixed to the support plate. The support plate is connected to the bottom of the lamp housing by a second fastener. The edge of the support plate has a folded contact edge, which contacts the connecting edge and abuts against the two sides of the fastener.

[0008] In the aforementioned explosion-proof lighting fixture, a flexible buffer cylinder is fitted onto the fastener, and the aforementioned contact edge abuts against one side of the buffer cylinder.

[0009] In the aforementioned explosion-proof lighting fixture, a buffer cylinder is fitted onto the second fastener, and the second buffer cylinder is pressed tightly between the support plate and the lamp housing.

[0010] In the aforementioned explosion-proof lighting fixture, the lampshade has an internal cavity and an opening at the bottom. The outer side of the opening end of the lampshade has a protruding positioning edge, and the aforementioned gasket is pressed tightly between the connecting edge and the positioning edge.

[0011] In the aforementioned explosion-proof lighting fixtures, the positioning edge is flush with the upper end of the lamp housing.

[0012] In the aforementioned explosion-proof lighting fixture, the gasket is made of a flexible material and has several parallel and adjacent deformable grooves along its length.

[0013] The aforementioned explosion-proof lighting fixture also includes a frame-shaped body, which includes a cylindrical body that matches the port of the lamp housing. The upper part of the body has an outwardly protruding edge, and the lower part of the body has an inwardly protruding connecting edge. The body is embedded in the port of the lamp housing and contacts the surface of the lamp housing. The protruding edge abuts against the upper port of the lamp housing.

[0014] In the aforementioned explosion-proof lighting fixture, the outer edge of the connecting edge has a downward-folded flange, and the flange and the connecting edge have a smooth transition.

[0015] In the aforementioned explosion-proof lighting fixture, the raised edge, body, connecting edge, and flange are an integral structure.

[0016] In the aforementioned explosion-proof lighting fixture, there is an inclined transition section between the contact edge and the support plate, with the contact edge located at the upper part of the transition section and the support plate located at the lower part of the transition section.

[0017] Compared with existing technologies, this explosion-proof lamp has a frame at the port of the lamp housing. Therefore, the frame enables a stable indirect connection between the lamp housing and the lamp cover. The gasket seals the connection, preventing external impurities and dust from entering the lamp body and effectively improving its stability.

[0018] Meanwhile, the lamp body is fixed to the support plate. The second buffer cylinder provides cushioning between the support plate and the bottom of the housing, while the first buffer cylinder provides cushioning at the outer edge of the support plate. Therefore, even in high-risk installation environments where vibrations occur, the support plate provides excellent cushioning, ensuring the lamp body lights normally and further improving its stability.

[0019] In addition, the dust collection grooves along the edge of the lampshade can collect some dust, meaning that a large amount of dust is dispersed, effectively preventing excessive dust accumulation at the connection between the lampshade and the lamp housing. Moreover, during vibration of the explosion-proof lighting fixture, the dispersed and accumulated dust can also fall off smoothly. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the explosion-proof lighting fixture.

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the lampshade after it has been disassembled in this explosion-proof lighting fixture.

[0022] Figure 3 This is a cross-sectional structural diagram of the explosion-proof lighting fixture.

[0023] Figure 4 yes Figure 1 A schematic diagram of the partial structure at part A in the middle.

[0024] Figure 5 yes Figure 3 A schematic diagram of the partial structure at part B in the middle.

[0025] Figure 6 yes Figure 3 A schematic diagram of the partial structure at part C in the middle.

[0026] In the picture:

[0027] 1. Lamp housing; 2. Lamp shade; 21. Dust collection trough; 22. Positioning edge; 3. Lamp body; 4. Frame; 41. Body; 42. Raised edge; 43. Connecting edge; 431. Flanged edge; 5. Gasket; 51. Deformation groove; 6. Support plate; 61. Contact edge; 62. Transition section; 7. Fastener one; 8. Fastener two; 9. Buffer cylinder one; 10. Buffer cylinder two. Detailed Implementation

[0028] The following are specific embodiments of the present invention, and the technical solution of the present invention will be further described in conjunction with the accompanying drawings.

[0029] like Figure 1-6 As shown, this explosion-proof lighting fixture includes a lamp housing 1, a lamp shade 2, and a lamp body 3. The lamp housing 1 has an internal cavity and is open at one end. The lamp shade 2 is connected to the open end of the lamp housing 1 and forms a lamp cavity with an internal cavity between the lamp housing 1 and the lamp shade 2. The lamp body 3 is connected to the lamp cavity. The inner side of the lamp housing 1 has a protruding connecting edge 43. The connecting edge 43 also has a flexible gasket 5. The edge of the lamp shade 2 is connected to the connecting edge 43 by a fastener, and the gasket 5 is pressed tightly between the connecting edge 43 and the lamp shade 2. The edge of the lamp shade 2 has a recessed dust collection groove 21. It also includes a support plate 6. The lamp body 3 is fixedly connected to the support plate 6. The support plate 6 is connected to the bottom of the lamp housing 1 by a second fastener 8. The edge of the support plate 6 has a folded contact edge 61. The contact edge 61 contacts the surface of the connecting edge 43 and the edge of the contact edge 61 abuts against the side of the second fastener 8.

[0030] The lamp body 3 is fixedly connected to the support plate 6, and the support plate 6 is positioned and connected to the bottom of the lamp housing 1 by fastener 2 8.

[0031] The lampshade 2 and the lamp housing 1 are connected by a series of adjacent fasteners 7 along the connecting edge 43. The contact edge 61 on the support plate 6 overlaps the connecting edge 43 and abuts against the fasteners 7. Therefore, the support plate 6 is stably positioned between the lamp housing 1 and the lampshade 2.

[0032] Since explosion-proof lighting fixtures are typically used in high-risk environments with high dust and vibration, the dust present in these environments is dispersed and accumulated in the dust collection trough 21, preventing all dust from concentrating at the connection between the lampshade 2 and the lamp housing 1. Even if the explosion-proof lighting fixture is subjected to vibration, the multiple connections on the support plate 6 indirectly ensure that the lighting fixture on the support plate 6 will not become loose, effectively guaranteeing the stability of the entire explosion-proof lighting fixture.

[0033] Of course, the flexible gasket 5 is pressed tightly between the lamp housing 1 and the lamp shade 2, which effectively improves the sealing of the connection between the lamp housing 1 and the lamp shade 2. At the same time, the gasket 5 also plays a role in shock absorption; when the explosion-proof lamp is subjected to vibration, the gasket 5 can provide cushioning.

[0034] A flexible buffer cylinder 8 is fitted onto the fastener 7, and the aforementioned contact edge 61 abuts against the side of the buffer cylinder 8.

[0035] In this embodiment, the buffer cylinder 8 is made of rubber. The contact edge 61 abuts against the side of the buffer cylinder 8, which not only positions the support plate 6, but also provides cushioning when the explosion-proof lighting fixture is subjected to vibration.

[0036] A buffer cylinder 10 is fitted onto the fastener 2 8, and the buffer cylinder 2 10 is pressed tightly between the support plate 6 and the lamp housing 1.

[0037] In this embodiment, the second buffer cylinder 10 is made of rubber. When the explosion-proof lighting fixture is subjected to vibration, the second buffer cylinder 10 can provide cushioning.

[0038] The lampshade 2 has a hollow interior and an opening at the bottom. The outer side of the opening end of the lampshade 2 has a protruding positioning edge 22. The gasket 5 is pressed tightly between the connecting edge 43 and the positioning edge 22.

[0039] This structure increases the contact area at the connection between the lampshade 2 and the lamp housing 1.

[0040] The positioning edge 22 is flush with the upper port of the lamp housing 1.

[0041] This improves the overall structural compactness of the explosion-proof lighting fixture.

[0042] The gasket 5 is made of a flexible material and has several parallel and adjacent deformable grooves 51 along its length.

[0043] The deformation groove 51 enables the gasket 5 to form multiple sealing rings after being squeezed and deformed, thereby effectively improving the sealing performance between the lamp housing 1 and the lamp cover 2.

[0044] It also includes a frame-shaped frame 4, which includes a cylindrical body 41 that matches the port of the lamp housing 1. The upper part of the body 41 has an outwardly protruding edge 42, and the lower part of the body 41 has an inwardly protruding connecting edge 43. The body 41 is embedded in the port of the lamp housing 1 and the body 41 is in contact with the lamp housing surface. The protruding edge 42 abuts against the upper port of the lamp housing 1.

[0045] The frame 4 allows for a stable indirect connection between the lamp housing 1 and the lamp shade 2.

[0046] In other words, by providing the raised edge 42 and connecting edge 43 on the frame 4, compared to directly providing the raised edge 42 and connecting edge 43 on the lamp housing 1, the design of the frame 4 simplifies the structure of the lamp housing 1 and reduces the manufacturing difficulty of the entire explosion-proof lamp.

[0047] The main body 41 is located inside the lamp housing 1 at the port and the two surfaces are in contact. The protruding edge 42 abuts against the lamp housing 1 at the port, and the connecting edge 43 is stably connected to the lamp shade 2. The main body 41 and the lamp housing 1 are fixedly connected with glue, and finally the frame 4 is stably connected to the lamp housing 1 at the port.

[0048] The connecting edge 43 has a downwardly folded flange 431 at its outer edge, and the flange 431 transitions smoothly with the connecting edge 43.

[0049] The flange 431 can effectively eliminate the sharp structure of the outer edge of the connecting edge 43, so that the explosion-proof lamp will not cause scratches to the assembly personnel during the assembly process.

[0050] The protruding edge 42, the body 41, the connecting edge 43, and the flange 431 are an integral structure.

[0051] There is an inclined transition section 62 between the contact edge 61 and the tray 6, with the contact edge 61 located at the upper part of the transition section 62 and the tray 6 located at the lower part of the transition section 62.

[0052] The inclined transition section 62 allows the contact edge 61 to be at the upper part and the support plate 6 to be at the lower part. Since the lamp body 3 is connected to the support plate 6, it ultimately ensures that the lamp body 3 is stably positioned in the cavity of the lamp housing 1.

[0053] In this explosion-proof lighting fixture, a frame is installed at the port of the lamp housing. Therefore, the frame enables a stable indirect connection between the lamp housing and the lamp cover. The gasket seals the connection, preventing external impurities and dust from entering the lamp body and effectively improving its stability.

[0054] Meanwhile, the lamp body is fixed to the support plate. The second buffer cylinder provides cushioning between the support plate and the bottom of the housing, while the first buffer cylinder provides cushioning at the outer edge of the support plate. Therefore, even in high-risk installation environments where vibrations occur, the support plate provides excellent cushioning, ensuring the lamp body lights normally and further improving its stability.

[0055] In addition, the dust collection grooves along the edge of the lampshade can collect some dust, meaning that a large amount of dust is dispersed, effectively preventing excessive dust accumulation at the connection between the lampshade and the lamp housing. Moreover, during vibration of the explosion-proof lighting fixture, the dispersed and accumulated dust can also fall off smoothly.

[0056] The above-described technical solution of this utility model addresses the problem that existing technical solutions are too simplistic and provides a solution that is significantly different from existing technologies. The parts not covered in this application's technical solution are the same as or can be implemented using existing technologies, and will not be described in detail here.

[0057] The technical solutions in the above embodiments have clearly and completely described the content of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Images