Explosion-proof warning lamp

Abstract

The utility model discloses an anti-explosion warning lamp which comprises a base, a shell and an inner cavity defined by the shell. The shell is provided with a first open end part and a second open end part; a light-emitting component is arranged at the end part of the first opening, and a sounding component is arranged at the end part of the second opening; the sounding assembly comprises an end cover and a sounder accommodated in the inner cavity, the end cover comprises an end plate and an annular wall extending perpendicular to the end cover, and the annular wall is in threaded connection with the second opening end; a plurality of metal sintering nets are laminated between the sounder and the end cover, and the circumferential surface of each metal sintering net is bonded and fixed with the inner side of the ring wall through a sealant. According to the explosion-proof warning lamp, through the metal sintering nets which are arranged in the stacked mode and the mode that the metal sintering nets are fixedly bonded with the annular wall, the fire-retardant structure of the explosion-proof warning lamp is improved, the explosion-proof function and the sound transmission effect of the sounder are both considered, the processing technology difficulty of the explosion-proof warning lamp is lowered, and the economical efficiency of the explosion-proof warning lamp is improved.

Description

Technical Field

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

[0002] Existing sound and light explosion-proof warning lights usually adopt a combination of explosion-proof and intrinsically safe explosion-proof types. Due to the current limitation of intrinsically safe explosion-proof types, the sound intensity of such sound-generating devices is usually not very high, making them unsuitable for use in noisy environments.

[0003] Commercially available explosion-proof audible and visual warning lights primarily rely on flame-arresting mesh components for their explosion-proof function. These components typically consist of a flame-arresting mesh shell, corrugated strip elements, and a pressure plate. The flame-arresting mesh component and the shell usually have a threaded connection, while the shell and corrugated strip elements typically have a cylindrical connection. This manufacturing process is relatively complex and not economical. Utility Model Content

[0004] The purpose of this utility model is to provide an explosion-proof warning light that optimizes the flame-retardant structure, takes into account both the explosion-proof function and the sound transmission effect of the sound generator, reduces the processing difficulty of the explosion-proof warning light, and improves the economy of the explosion-proof warning light.

[0005] To solve the above-mentioned technical problems, the present invention provides a technical solution as follows: an explosion-proof warning light includes a base, the base including a shell and an inner cavity defined by the shell; the shell has a first open end and a second open end; the first open end is provided with a light-emitting component, and the second open end is provided with a sound-emitting component; the sound-emitting component includes an end cap and a sound generator housed in the inner cavity, the end cap including an end plate and an annular wall extending perpendicularly to the end cap, the annular wall being threadedly connected to the second open end; a plurality of sintered metal meshes are stacked between the sound generator and the end cap, and the circumferential surface of each sintered metal mesh is bonded and fixed to the inner side of the annular wall by a sealant.

[0006] Furthermore, a waterproof and sound-permeable membrane is provided between the sintered metal mesh and the end plate, and the waterproof and sound-permeable membrane is attached to the end face of the sintered metal mesh.

[0007] Furthermore, the waterproof and sound-permeable membrane is disposed between two adjacent sintered metal meshes and close to the end plate.

[0008] Furthermore, a sealing element is provided between the end cap and the second opening end to seal the gap between the end cap and the second opening end.

[0009] Further step The thickness of the multiple stacked metal sintered meshes is not less than 10 mm, and the height of the bonding surface between the circumferential surface of the metal sintered mesh and the inner side of the ring wall is not less than 10 mm.

[0010] Furthermore, the sintered metal mesh is a multi-layered mesh structure made of metal wires with a diameter of 0.1 mm, interwoven in warp and weft, with a density of at least 2.4 g / cm³. 3 And the maximum bubble gap is 0.15mm.

[0011] Furthermore, the light-emitting component includes a connector threadedly connected to the first open end, a light source, and a lampshade covering the outside of the light source; the light source is fixed inside the connector by a limiting ring, and the lower end of the lampshade is bonded and fixed to the inside of the connector.

[0012] Furthermore, a sealing ring is provided between the connector and the first open end.

[0013] Furthermore, the end plate has multiple through holes running through it.

[0014] The explosion-proof warning light provided by this utility model, compared with the prior art, features a sound generator installed in the explosion-proof cavity and multiple sintered metal meshes superimposed and bonded to the end cap. This design ensures that in the event of a short circuit, fire, or explosion within the cavity, the energy of the flame is absorbed and extinguished as it passes through the sintered metal meshes, thus preventing an explosion outside the casing. Simultaneously, the warning sound from the sound generator is effectively transmitted to the outside of the casing through the gaps in the sintered metal mesh, serving as a warning. The overall structure is simple, reducing the manufacturing difficulty of the explosion-proof warning light and improving its economic efficiency. This structure allows a high-decibel sound generator to be installed inside the explosion-proof enclosure, meeting both the pure explosion-proof requirements of the light fixture and the high-decibel output requirements of the sound generator. In particular, a waterproof and sound-permeable membrane is installed between the sintered metal meshes and the end plate. The sintered metal meshes act as a carrier for the waterproof and sound-permeable membrane, preventing moisture and dust from entering the casing and effectively increasing the protection level of the explosion-proof warning light. Attached Figure Description

[0015] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings represent similar elements. Unless otherwise stated, the figures in the drawings do not constitute a limitation on scale.

[0016] Figure 1 This is a three-dimensional structural diagram of the explosion-proof warning light in an embodiment of this utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the explosion-proof warning light in an embodiment of this utility model;

[0018] Figure 3 This is a schematic diagram of the exploded structure of the sound-generating component in an embodiment of this utility model;

[0019] Figure 4 This is a schematic diagram of the assembly structure of the sound-generating component in an embodiment of this utility model.

[0020] Explanation of reference numerals in the attached drawings: 10, Light-emitting component; 11, Lampshade; 12, Light source; 13, Connector; 14, Limiting ring; 15, Fixing plate; 20, Base; 201, Inner cavity; 21, Housing; 211, First open end; 212, Second open end; 22, Terminal block; 30, Sound-generating component; 31, Sound generator; 32, End cap; 321, End plate; 322, Ring wall; 323, Perforation; 33, Sintered metal mesh; 331, Sealant; 34, Waterproof and sound-permeable membrane; 35, Pressure ring; 36, Sealing element; 37, Fixing ring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0022] It should be noted that if the embodiments of this application involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0023] like Figure 1-4 As shown, one embodiment of this utility model relates to an explosion-proof warning light, including a base 20 and a light-emitting component 10 and a sound-emitting component 30 fixed to the base 20. The base 20 is a cavity structure, including a shell 21 and an inner cavity 201 defined by the shell 21. The inner cavity 201 has an explosion-proof function to prevent flames generated when the internal components of the inner cavity 201 experience short circuits, fires, explosions, or other abnormalities from extending out of the shell 21 and causing an explosion in the external environment. The shell 21 has a first opening end 211 facing the light-emitting component 10 and a second opening end 212 facing the sound-emitting component 30.

[0024] The light-emitting component 10 includes a light source 12, a lamp cover 11 covering the outside of the light source 12, and a connector 13 for connecting the light-emitting component 10 and the base 20. The connector 13 is an annular structure adapted to the first open end 211. In one example, the light source 12 is fixed to the inside of the connector 13 by a limiting ring 14, the lower end of the lamp cover 11 is bonded and fixed to the inside of the connector 13, and the connector 13 is screwed to the inside of the first open end 211 to form a detachable fixed connection. Preferably, a sealing ring is also provided between the connector 13 and the first open end 211 to seal the gap between the connector 13 and the first open end 211, thereby increasing the protective performance of the connection between the lamp head assembly and the base 20.

[0025] The sound-generating assembly 30 includes an end cap 32 that covers the second open end 212 and a sound generator 31 housed in the inner cavity 201. The end cap 32 includes an end plate 321 and an annular wall 322 extending perpendicularly to the end plate 321. The annular wall 322 is provided with external threads. The end cap 32 is threadedly connected to the second open end 212 through the annular wall 322. Preferably, the end plate 321 has multiple through holes 323 through its plane for the propagation of sound from the sound generator 31. A sealing element 36 is provided between the end cap 32 and the second open end 212 to seal the gap between the end cap 32 and the second open end 212, thereby increasing the overall protective performance of the lamp. Multiple sintered metal meshes 33 are stacked between the sound generator 31 and the end cap 32. The periphery of the sintered metal meshes 33 is bonded and fixed to the inner side of the annular wall 322 with sealant 331. The stacking of multiple sintered metal meshes 33 not only utilizes the flame path formed by the mesh gaps to divide the flame into smaller flame streams, but also uses heat dissipation and wall effects to reduce the temperature and ultimately extinguish the flame, preventing an explosion outside the casing 21 at the flame's edge. Simultaneously, the sound from the sound generator 31 can also be transmitted through the mesh gaps of the sintered metal meshes 33 out of the casing 21, serving as a warning. Adjusting the number of stacked sintered metal meshes 33 can adjust the flame path to increase the explosion-proof effect, and also adjust the gaps in the sound transmission channel to regulate the volume of the sound generator 31.

[0026] In one embodiment, an explosion-proof warning light is provided. Multiple sintered metal meshes 33 are stacked between the sound generator 31 and the end cap 32. The peripheral surfaces of the sintered metal meshes 33 are bonded and fixed to the inner side of the annular wall 322 using sealant 331. A waterproof and sound-permeable membrane 34 is provided between the sintered metal meshes 33 and the end plate 321. The waterproof and sound-permeable membrane 34 is used to prevent external moisture and dust from entering the inner cavity 201 from the second opening end 212, effectively increasing the protective performance of the explosion-proof warning light. The waterproof and sound-permeable membrane 34 can be fitted between two sintered metal meshes 33, or it can be fitted and fixed to the planar end face of the sintered metal meshes 33 adjacent to the end plate 321. In one example, the sound generator 31 is a buzzer, and the waterproof and sound-permeable membrane 34 is positioned between two sintered metal meshes 33 near the end plate 321.

[0027] One embodiment involves an explosion-proof warning light, wherein at least three sintered metal meshes 33 are stacked between the sounder 31 and the end cap 32. The sintered metal meshes 33 are multi-layered mesh structures made of 0.1mm diameter metal wires interwoven in warp and weft, and each sintered metal mesh 33 has a minimum density of 2.4g / cm³. 3 The maximum bubble gap is 0.15 mm. Preferably, the thickness of the stacked metal sintered mesh 33 is not less than 10 mm, and the height of the bonding surface between the circumference of the metal sintered mesh 33 and the inner side of the ring wall 322 is not less than 10 mm. Preferably, the metal wires of the metal sintered mesh 33 are made of stainless steel.

[0028] In one embodiment, an explosion-proof warning light is provided, wherein a fixing plate 15 is fixedly provided at the first open end 211 for supporting the light source 12 and fixing the circuit assembly, and a wiring terminal 22 is fixedly provided in the inner cavity 201 for connecting the internal circuit of the warning light to the external circuit.

[0029] The explosion-proof warning light provided by this utility model features a sound generator installed within the explosion-proof cavity, and multiple sintered metal meshes superimposed and bonded to the end cap. This design ensures that in the event of a short circuit, fire, or explosion within the cavity, the energy of the flame is absorbed and extinguished as it passes through the sintered metal meshes, preventing an explosion outside the casing. Simultaneously, the warning sound from the sound generator is effectively transmitted to the outside of the casing through the gaps in the sintered metal mesh, serving as a warning. The overall structure is simple, reducing the manufacturing difficulty of the explosion-proof warning light and improving its economic efficiency. This structure allows a high-decibel sound generator to be installed inside the explosion-proof enclosure, meeting both the pure explosion-proof requirements of the light fixture and the high-decibel output requirements of the sound generator. In particular, a waterproof and sound-permeable membrane is installed between the sintered metal mesh and the end plate. The sintered metal mesh acts as a carrier for the waterproof and sound-permeable membrane, preventing moisture and dust from entering the casing and effectively increasing the protection level of the explosion-proof warning light.

[0030] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can 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 determined by the claims.

Claims

1. An explosion-proof warning light, characterized by, The device includes a base (20), which includes a housing (21) and an inner cavity (201) defined by the housing (21); the housing (21) is provided with a first open end (211) and a second open end (212); the first open end (211) is provided with a light-emitting component (10), and the second open end (212) is provided with a sound-emitting component (30); The sound-generating assembly (30) includes an end cap (32) and a sound generator (31) housed in the inner cavity (201). The end cap (32) includes an end plate (321) and an annular wall (322) extending perpendicularly to the end cap (32). The annular wall (322) is threadedly connected to the second open end (212). Multiple metal sintered meshes (33) are stacked between the sound generator (31) and the end cap (32), and the periphery of each metal sintered mesh (33) is bonded and fixed to the inner side of the ring wall (322) by sealant (331).

2. The explosion-proof warning light of claim 1, wherein A waterproof and sound-permeable membrane (34) is provided between the sintered metal mesh (33) and the end plate (321), and the waterproof and sound-permeable membrane (34) is attached to the end face of the sintered metal mesh (33).

3. The explosion-proof warning light of claim 2, wherein, The waterproof and sound-permeable membrane (34) is disposed between two adjacent sintered metal meshes (33) and close to the end plate (321).

4. The explosion-proof warning light of claim 1, wherein, A sealing element (36) is provided between the end cap (32) and the second opening end (212) to seal the gap between the end cap (32) and the second opening end (212).

5. The explosion-proof warning light of claim 1, wherein, The thickness of the stacked metal sintered meshes (33) is not less than 10 mm, and the height of the bonding surface between the circumferential surface of the metal sintered mesh (33) and the inner side of the ring wall (322) is not less than 10 mm.

6. The explosion-proof warning light of claim 1, wherein, The metal sintered mesh (33) is a multi-layer grid structure of metal wires with a diameter of 0.1 mm, interlaced in the warp and weft, with a density of at least 2.4 g / cm 3 , and a maximum bubble test gap of 0.15 mm.

7. The explosion-proof warning light of claim 1, wherein, The light-emitting component (10) includes a connector (13) threadedly connected to the first open end (211), a light source (12), and a lampshade (11) covering the outside of the light source (12); the light source (12) is fixed inside the connector (13) by a limiting ring (14), and the lower end of the lampshade (11) is bonded and fixed to the inside of the connector (13).

8. The explosion-proof warning light of claim 7, wherein, A sealing ring is provided between the connector (13) and the first open end (211).

9. The explosion-proof warning light of any of claims 1-8, wherein, The end plate (321) has multiple through holes (323) running through its plane.

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