Explosion-proof indicating lamp

Abstract

The utility model relates to the technical field of explosion-proof indicating lamps, in particular to an explosion-proof indicating lamp which comprises an explosion-proof cavity base, an explosion-proof cavity inner cover is connected to one end of the explosion-proof cavity base in a clamped mode, an explosion-proof cavity is formed between the explosion-proof cavity base and the explosion-proof cavity inner cover in a sealed mode, and a machine body outer shell is connected to the outer wall of the explosion-proof cavity base in a clamped mode. The outer wall of the explosion-proof cavity inner cover is in clamping connection with the inner wall of the machine body shell, a lens outer cover is clamped at the end of the machine body shell, an inner sealing cover is clamped between the end of the machine body shell and the inner wall of the lens outer cover, and a wiring piece is fixedly connected to the end, away from the lens outer cover, of the explosion-proof cavity base; the explosion-proof cavity is formed by the explosion-proof cavity base and the explosion-proof cavity inner cover, the outer explosion-proof cavity is formed between the lens outer cover and the explosion-proof cavity inner cover, a double-layer explosion-proof cavity structure is adopted in the signal lamp, double-layer protection is achieved through the lens outer cover and the explosion-proof cavity inner cover, the sealing performance is improved through the inner sealing cover, the explosion-proof performance is improved, the structures are matched precisely, and the sealing performance is good after assembly.

Description

Technical Field

[0001] The utility model relates to the field of explosion-proof indicator lights, in particular to an explosion-proof indicator light. Background Art

[0002] Explosion-proof signal lights are used in flammable and explosive dangerous environments or harsh environments that are prone to corrosion and moisture. They are mainly used in hazardous places such as petrochemical, chemical, coal mining, medicine, warehousing and combustible dust environments. In such environments, the presence of flammable and explosive gases, dust, or sparks generated by friction of electrical equipment may cause explosions and other dangers.

[0003] Existing explosion-proof indicator lights, such as the explosion-proof signal light proposed in patent application number "CN202221392715.2", have structures such as a signal lamp holder, a lampshade, a connecting seat, an inner hole, etc., and the upper section of the inner hole cooperates with the outer peripheral thread below the lampshade and is sealed with glue.

[0004] However, the existing explosion-proof signal lamp has defects. The lampshade and the lamp holder form a lamp cavity. The explosion-proof lamp is a single-layer structure. The lamp cavity space of the explosion-proof lamp is unique, the internal structure is simple, and the explosion-proof effect needs to be improved. Therefore, an explosion-proof indicator light is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide an explosion-proof indicator light to solve the problems raised in the above background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] An explosion-proof indicator light comprises an explosion-proof cavity base, one end of the explosion-proof cavity base is clamped with an explosion-proof cavity inner cover, the explosion-proof cavity base and the explosion-proof cavity inner cover are sealed to form an explosion-proof cavity, the outer wall of the explosion-proof cavity base is clamped with a body shell, the outer wall of the explosion-proof cavity inner cover is clamped and connected with the inner wall of the body shell, a lens cover is clamped with the end of the body shell, an inner sealing cover is clamped between the end of the body shell and the inner wall of the lens cover, and a wiring piece is fixedly connected to one end of the explosion-proof cavity base away from the lens cover.

[0008] Preferably, a card slot is provided on the side wall of the explosion-proof chamber base, a buckle is fixedly connected to one end of the explosion-proof chamber inner cover, the buckle is snap-fitted to the card slot, a protrusion is fixedly connected to one end of the body shell, a pressing groove is provided on the inner wall of the lens cover, and the protrusion is snap-fitted to the pressing groove.

[0009] Preferably, two groups of card blocks one are fixedly connected to the side wall of the explosion-proof chamber base, two groups of card blocks three are fixedly connected to the inner wall of the fuselage shell, the two groups of card blocks three are respectively engaged with the two groups of card blocks one, four groups of card blocks two are fixedly connected to the inner wall of the fuselage shell, a fixing ring is fixedly connected to one end of the outer wall of the explosion-proof chamber inner cover, and the four groups of card blocks two are all engaged with the fixing ring.

[0010] Preferably, two groups of limiting blocks are fixedly connected to the outer wall of the inner cover of the explosion-proof cavity. The four clamping blocks II are respectively clamped with the two groups of limiting blocks, and the four clamping blocks II are respectively in close contact with both sides of the two groups of limiting blocks.

[0011] Preferably, a rear sealing ring is clamped on the outer wall of the explosion-proof cavity base. The rear sealing ring is in extrusion fit with the inner wall of the fuselage shell. A limiting ring is fixedly connected to the side wall of the explosion-proof cavity base, and one end of the fuselage shell is in abutting fit with the limiting ring.

[0012] Preferably, a groove is formed at one end of the fuselage shell located inside the lens cover. A front sealing ring is clamped inside the groove. The front sealing ring is in extrusion fit with one end of the inner sealing cover. A central ring is fixedly connected to the middle of the inner wall of the lens cover, and one end of the inner sealing cover is in abutting contact with the central ring.

[0013] The beneficial effects of the present utility model are as follows:

[0014] 1. In the present utility model, an explosion-proof cavity is formed by the explosion-proof cavity base and the inner cover of the explosion-proof cavity. An outer explosion-proof cavity is formed between the lens cover and the inner cover of the explosion-proof cavity. The signal lamp internally adopts a double-layer explosion-proof cavity structure. The lens cover and the inner cover of the explosion-proof cavity provide double protection. The inner sealing cover improves the sealing performance. The internal space of the explosion-proof indicator lamp is not unique, and the explosion-proof performance is improved.

[0015] 2. In the present utility model, the explosion-proof cavity base and the inner cover of the explosion-proof cavity are installed by clamping. The fuselage shell combines the inner cover of the explosion-proof cavity and the explosion-proof cavity base. The structures are precisely matched with each other. The gaps between the inner cover of the explosion-proof cavity, the explosion-proof cavity base and the fuselage shell are filled with resin glue and cured. After assembly, the sealing performance is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings;

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a schematic diagram of the overall transverse sectional structure of the present utility model;

[0019] Figure 3 is a schematic diagram of the overall longitudinal sectional structure of the present utility model;

[0020] Figure 4 is a schematic diagram of the structure of the inner cover of the explosion-proof cavity of the present utility model;

[0021] Figure 5 is a schematic diagram of the structure of the explosion-proof cavity base of the present utility model;

[0022] Figure 6 It is a schematic diagram of the internal structure of the fuselage shell of the present utility model;

[0023] The reference numerals in the figure are as follows:

[0024] 1. Lens outer cover; 11. Central ring; 12. Groove; 2. Inner sealing cover; 3. Inner explosion-proof chamber cover; 31. Buckle; 32. Limit block; 33. Fixed ring; 4. Explosion-proof chamber base; 41. Card slot; 42. First clamping block; 43. Limit ring; 5. Fuselage shell; 51. Groove; 52. Protrusion; 54. Second clamping block; 55. Third clamping block; 6. Wiring part; 7. Front sealing ring; 8. Rear sealing ring. Specific implementation mode

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] An explosion-proof indicator light, as Figures 1 - 6 shown, includes an explosion-proof chamber base 4. One end of the explosion-proof chamber base 4 is clamped with an inner explosion-proof chamber cover 3. An explosion-proof chamber is sealed between the explosion-proof chamber base 4 and the inner explosion-proof chamber cover 3. Electronic component accessories such as LED lights can be installed in the explosion-proof chamber. The outer wall of the explosion-proof chamber base 4 is clamped with a fuselage shell 5. The thread on the outer wall of the fuselage shell 5 facilitates the installation of the explosion-proof signal light. The outer wall of the inner explosion-proof chamber cover 3 is clamped and connected with the inner wall of the fuselage shell 5 and will not come off. The end of the fuselage shell 5 is clamped with a lens outer cover 1, and the fuselage shell 5 and the lens outer cover 1 will not come off. An inner sealing cover 2 is clamped between the end of the fuselage shell 5 and the inner wall of the lens outer cover 1. The inner sealing cover 2 increases the sealing performance of the lamp cavity inside the signal light. The end of the explosion-proof chamber base 4 far from the lens outer cover 1 is fixedly connected with a wiring part 6, and the wiring part 6 facilitates the connection of this explosion-proof signal light with an external power supply part or a wire.

[0027] An explosion-proof chamber is formed by the explosion-proof chamber base 4 and the inner explosion-proof chamber cover 3. An outer explosion-proof chamber is formed between the lens outer cover 1 and the inner explosion-proof chamber cover 3. The signal light adopts a double-layer explosion-proof chamber structure inside. The lens outer cover 1 and the inner explosion-proof chamber cover 3 provide double protection. The inner sealing cover 2 improves the sealing performance. The internal space of the explosion-proof indicator light is not unique, and the explosion-proof performance is improved. The explosion-proof chamber base 4 and the inner explosion-proof chamber cover 3 are clamped and installed. The fuselage shell 5 combines the inner explosion-proof chamber cover 3 and the explosion-proof chamber base 4, and the structures are precisely matched with each other. Resin glue is injected into the gaps between the inner explosion-proof chamber cover 3, the explosion-proof chamber base 4 and the fuselage shell 5 and cured, and the sealing performance is good after assembly.

[0028] As Figure 2 、 Figure 4, Figure 5 As shown in the figure, a clamping groove 41 is formed on the side wall of the explosion-proof cavity base 4. One end of the explosion-proof cavity inner cover 3 is fixedly connected with a clamping buckle 31, and the clamping buckle 31 is clamped and installed with the clamping groove 41. One end of the fuselage shell 5 is fixedly connected with a protrusion 52, and a pressing groove 12 is formed on the inner wall of the lens outer cover 1. The protrusion 52 is clamped and installed with the pressing groove 12.

[0029] The explosion-proof cavity base 4 and the explosion-proof cavity inner cover 3 are clamped and installed through the clamping buckle 31 and the clamping groove 41, so that the two will not be separated. The lens outer cover 1 and the fuselage shell 5 are firmly clamped and installed through the protrusion 52 and the pressing groove 12, so that the structures are combined.

[0030] As Figure 2 , Figure 3 , Figure 5 , Figure 6 As shown in the figure, two groups of first clamping blocks 42 are fixedly connected to the side wall of the explosion-proof cavity base 4. Two groups of third clamping blocks 55 are fixedly connected to the inner wall of the fuselage shell 5. The two groups of third clamping blocks 55 are respectively clamped and matched with the two groups of first clamping blocks 42. Four groups of second clamping blocks 54 are fixedly connected to the inner wall of the fuselage shell 5. One end of the outer wall of the explosion-proof cavity inner cover 3 is fixedly connected with a fixing ring 33. The four groups of second clamping blocks 54 are all clamped and matched with the fixing ring 33.

[0031] The first clamping block 42 and the third clamping block 55 are clamped and matched. The combination of the explosion-proof cavity inner cover 3 and the explosion-proof cavity base 4 is forced by a press to a specified position inside the fuselage shell 5, so that the combination of the explosion-proof cavity inner cover 3 and the explosion-proof cavity base 4 cannot be separated from the fuselage shell 5. The second clamping block 54 and the fixing ring 33 are clamped and matched, so that the combination of the explosion-proof cavity inner cover 3 and the explosion-proof cavity base 4 cannot continuously enter the fuselage shell 5. The two reverse acting forces exist at the same time and are stressed in opposite directions to form a whole, so that the structures cannot be split in one forming.

[0032] The explosion-proof cavity inner cover 3 and the explosion-proof cavity base 4 can also be connected by threads. The combination of the explosion-proof cavity inner cover 3 and the explosion-proof cavity base 4 can also be threadedly connected with the inner wall of the fuselage shell 5 through threads. Threaded connection can also ensure that the structures will not be separated.

[0033] As Figure 2 , Figure 4 As shown in the figure, two groups of limiting blocks 32 are fixedly connected to the outer wall of the explosion-proof cavity inner cover 3. The four groups of second clamping blocks 54 are respectively clamped and matched with the two groups of limiting blocks 32, and the four groups of second clamping blocks 54 are respectively close to both sides of the two groups of limiting blocks 32.

[0034] When the second clamping block 54 is clamped and matched with the fixing ring 33, the four groups of second clamping blocks 54 are respectively close to both sides of the two groups of limiting blocks 32, preventing the explosion-proof cavity inner cover 3 and the fuselage shell 5 from rotating and separating.

[0035] As Figure 3As shown, a rear sealing ring 8 is clamped on the outer wall of the explosion-proof cavity base 4. The rear sealing ring 8 is in extrusion fit with the inner wall of the fuselage shell 5. A limiting ring 43 is fixedly connected to the side wall of the explosion-proof cavity base 4, and one end of the fuselage shell 5 is in abutting fit with the limiting ring 43.

[0036] The rear sealing ring 8 increases the sealing performance between the fuselage shell 5 and the explosion-proof cavity base 4, and the limiting ring 43 defines the installation degree between the fuselage shell 5 and the explosion-proof cavity base 4.

[0037] As Figure 3 shown, a groove 51 is opened at one end of the fuselage shell 5 located inside the lens cover 1. A front sealing ring 7 is clamped inside the groove 51. The front sealing ring 7 is in extrusion fit with one end of the inner sealing cover 2. A central ring 11 is fixedly connected to the middle of the inner wall of the lens cover 1, and one end of the inner sealing cover 2 is in abutting connection with the central ring 11.

[0038] The front sealing ring 7 seals between the inner sealing cover 2 and the fuselage shell 5, and the central ring 11 seals and aligns between the inner sealing cover 2 and the lens cover 1.

[0039] The working principle of an explosion-proof indicator light provided by the present utility model is as follows:

[0040] An explosion-proof cavity is formed by the explosion-proof cavity base 4 and the explosion-proof inner cover 3. An outer explosion-proof cavity is formed between the lens cover 1 and the explosion-proof inner cover 3. The signal lamp internally adopts a double-layer explosion-proof cavity structure. The lens cover 1 and the explosion-proof inner cover 3 provide double protection. The inner sealing cover 2 improves the sealing performance, and the explosion-proof performance is enhanced. The explosion-proof cavity base 4 and the explosion-proof inner cover 3 are clamped and installed. The fuselage shell 5 combines the explosion-proof inner cover 3 and the explosion-proof cavity base 4. The structures are precisely matched with each other. Resin glue is injected into the gaps between the explosion-proof inner cover 3, the explosion-proof cavity base 4 and the fuselage shell 5 for curing, and the sealing performance is good after assembly.

[0041] The above shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. An explosion-proof indicator light, comprising an explosion-proof cavity base (4), characterized in that, One end of the explosion-proof cavity base (4) is clamped with an inner explosion-proof cavity cover (3). An explosion-proof cavity is sealed between the explosion-proof cavity base (4) and the inner explosion-proof cavity cover (3). The outer wall of the explosion-proof cavity base (4) is clamped with a fuselage shell (5). The outer wall of the inner explosion-proof cavity cover (3) is clamped and connected to the inner wall of the fuselage shell (5). One end of the fuselage shell (5) is clamped with a lens outer cover (1). An inner sealing cover (2) is clamped between one end of the fuselage shell (5) and the inner wall of the lens outer cover (1). One end of the explosion-proof cavity base (4) far from the lens outer cover (1) is fixedly connected with a wiring component (6).

2. An explosion-proof indicator light according to claim 1, characterized in that, A clamping groove (41) is formed in the side wall of the explosion-proof cavity base (4). One end of the inner explosion-proof cavity cover (3) is fixedly connected with a clamping buckle (31). The clamping buckle (31) is clamped and installed in the clamping groove (41). One end of the fuselage shell (5) is fixedly connected with a protrusion (52). A pressing groove (12) is formed in the inner wall of the lens outer cover (1). The protrusion (52) is clamped and installed in the pressing groove (12).

3. An explosion-proof indicator light according to claim 2, characterized in that, Two groups of first clamping blocks (42) are fixedly connected to the side wall of the explosion-proof cavity base (4). Two groups of third clamping blocks (55) are fixedly connected to the inner wall of the fuselage shell (5). The two groups of third clamping blocks (55) are respectively clamped and matched with the two groups of first clamping blocks (42). Four groups of second clamping blocks (54) are fixedly connected to the inner wall of the fuselage shell (5). One end of the outer wall of the inner explosion-proof cavity cover (3) is fixedly connected with a fixing ring (33). The four groups of second clamping blocks (54) are all clamped and matched with the fixing ring (33).

4. An explosion-proof indicator light according to claim 3, characterized in that, Two groups of limiting blocks (32) are fixedly connected to the outer wall of the inner explosion-proof cavity cover (3). The four groups of second clamping blocks (54) are respectively clamped and matched with the two groups of limiting blocks (32), and the four groups of second clamping blocks (54) are respectively in close contact with both sides of the two groups of limiting blocks (32).

5. An explosion-proof indicator light according to claim 1, characterized in that, A rear sealing ring (8) is clamped on the outer wall of the explosion-proof cavity base (4). The rear sealing ring (8) is in extrusion fit with the inner wall of the fuselage shell (5). A limiting ring (43) is fixedly connected to the side wall of the explosion-proof cavity base (4). One end of the fuselage shell (5) is in butt joint with the limiting ring (43).

6. An explosion-proof indicator light according to claim 1, characterized in that A groove (51) is formed at one end of the fuselage shell (5) located inside the lens outer cover (1). A front sealing ring (7) is clamped inside the groove (51). The front sealing ring (7) is in extrusion fit with one end of the inner sealing cover (2). A center ring (11) is fixedly connected to the middle of the inner wall of the lens outer cover (1). One end of the inner sealing cover (2) is in butt joint with the center ring (11).

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