Improved explosion-proof lamp

Abstract

The invention relates to the technical field of lamps, and discloses an improved explosion-proof lamp which comprises a mounting frame, a micro explosion-proof motor is fixed in the bottom end of the mounting frame, a rotating disc is fixed to an output shaft of the micro explosion-proof motor, a buffer pad is fixed to the top of the rotating disc, and a lamp assembly used for illumination is arranged at the top of the buffer pad. According to the improved anti-explosion lamp, an anti-explosion frame is fixed to the surface of the side edge of the rotary disc, a transverse guardrail is fixed to the surface of the anti-explosion frame, and on one side of the top end of the anti-explosion frame, a micro anti-explosion motor drives a buckling frame to drive a limiting block to rotate around a top shell, so that a push rod makes contact with an extension plate repeatedly; the push rod pushes the extension plate to move in the direction of the explosion-proof lamp shell, the extension plate drives the sliding support and the bottom scraping piece to move, the extension plate drives the top scraping piece to move in the direction of the longitudinal cooling fins, the longitudinal cooling fins and the transverse cooling fins are cleaned through the top scraping piece and the bottom scraping piece, and the cooling efficiency of the explosion-proof lamp is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lamps, in particular to an improved explosion-proof lamp. BACKGROUND

[0002] The explosion-proof lamp is a special lighting device designed for flammable and explosive environment. Its core function is to prevent sparks, arcs or high temperature generated inside the lamp due to faults (such as circuit short circuit, light source high temperature) from igniting flammable and explosive substances (such as gas, dust, flammable and explosive gas, etc.) in the surrounding environment, thereby avoiding explosion or fire accidents.

[0003] In order to ensure the explosion-proof performance of the explosion-proof lamp, a closed structure is usually adopted. The closed structure hinders heat dissipation. In order to avoid opening holes and protect the sealing of the explosion-proof lamp, heat dissipation fins are usually arranged on the explosion-proof lamp to transfer the heat inside the lamp to the outside. However, when the explosion-proof lamp is applied in areas with serious dust or high humidity such as coal mines, the dust will adhere to the surface of the heat dissipation fins under the action of humidity, resulting in a decrease in the heat dissipation efficiency of the heat dissipation fins. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides an improved explosion-proof lamp which solves the problems raised in the background art.

[0005] The present application provides the following technical scheme: an improved explosion-proof lamp, comprising a mounting frame, a micro explosion-proof motor is fixed inside the bottom end of the mounting frame, an output shaft of the micro explosion-proof motor is fixed with a rotating disc, a buffer pad is fixed on the top of the rotating disc, and a lamp assembly for lighting is arranged on the top of the buffer pad; A explosion-proof frame is fixed on the surface of the side of the rotating disc, a horizontal guardrail is fixed on the surface of the explosion-proof frame, a buckling frame is hingedly connected to one side of the top end of the explosion-proof frame through locking bolts, a limiting block is fixed on the surface of the side of the buckling frame close to the micro explosion-proof motor, and a push rod is fixed on the top of the buckling frame; The lamp assembly comprises a top shell, and a horizontal heat dissipation fin is fixed on the top of the top shell; A sliding support is slidably connected to the surface of the horizontal heat dissipation fin, and a bottom wiper is fixed in the sliding support and slidably connected with the horizontal heat dissipation fin.

[0006] Optionally, a damper is fixed on the bottom of the top end of the mounting frame.

[0007] Optionally, the lamp assembly further comprises an explosion-proof lamp shell, the explosion-proof lamp shell is clamped on the top of the buffer pad, an explosion-proof lamp is fixed in the explosion-proof lamp shell, a temperature sensor is fixed on the surface of the explosion-proof lamp, a top shell is threadedly connected to the surface of the top end of the explosion-proof lamp shell, an annular groove is formed in the surface of the top shell, and the limiting block is slidably connected with the annular groove.

[0008] Optionally, the top of the top shell is fixed with a blast shield, the surface of the blast shield is fixed with longitudinal heat dissipation fins, the top of the blast shield is fixed with a top cover through bolts, and the top of the top cover is fixed with one end of a damper.

[0009] Optionally, the surface of the bottom wiper near the side of the blast shield is fixed with a spring, one end of the spring is fixed with the blast shield, the top of the sliding support is fixed with an extension plate, the top of the extension plate is fixed with a top wiper, and the top wiper is in sliding connection with the longitudinal heat dissipation fins.

[0010] Optionally, the push rod is arranged in an inclined manner, the two ends of the extension plate away from the side of the blast shield are arranged in an arc shape, and the running track of the push rod is in contact with the extension plate.

[0011] Optionally, the surface of the blast shield near the side of the explosion-proof lamp shell is provided with a cleaning piece, and the cleaning piece is in contact with the surface of the explosion-proof lamp shell.

[0012] Optionally, the surface of the blast shield is provided with a slot, the inside of the slot is in sliding sealing connection with a ventilation pipe, and one end of the ventilation pipe near the extension plate is fixed with the extension plate.

[0013] Optionally, the surface of the ventilation pipe near the side of the blast shield is provided with an internal air port, and the surface of the ventilation pipe near the side of the extension plate is provided with an external air port.

[0014] Compared with the prior art, the present application has the following advantages: 1. The improved explosion-proof lamp drives the limiting block to rotate around the top shell through the micro explosion-proof motor transmission buckle, so that the push rod repeatedly contacts the extension plate, the push rod moves the extension plate towards the explosion-proof lamp shell, the extension plate drives the sliding support and the bottom wiper to move along the horizontal heat dissipation fins towards the explosion-proof lamp shell, the extension plate drives the top wiper to move towards the longitudinal heat dissipation fins, and then the top wiper and the bottom wiper clean the longitudinal heat dissipation fins and the horizontal heat dissipation fins respectively, thereby improving the heat dissipation efficiency of the present application.

[0015] 2. The improved explosion-proof lamp drives the ventilation pipe to repeatedly insert and eject in the inside of the slot through the extension plate, so that the internal air port and the external air port are alternately sealed by the slot. In the process of alternating sealing, the hot air in the top shell enters the ventilation pipe through the internal air port and is discharged to the outside through the external air port, while the external air enters the ventilation pipe through the external air port and is discharged to the top shell through the internal air port. Thus, the top shell can complete heat exchange with the external air without being in communication with the external air, thereby improving the heat dissipation efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The figure is a structural schematic diagram of the present application. Figure 2 It is the structural schematic view of the explosion-proof lamp shell, explosion-proof lamp and top shell of the application; Figure 3 It is the structural schematic view of the lamp assembly of the application; Figure 4 It is the structural sectional view of the explosion-proof frame and buckling frame of the application; Figure 5 It is the structural sectional view of the lamp assembly of the application; Figure 6 It is the schematic view of the position relationship between the transverse heat dissipation fin and the sliding support of the application; Figure 7 It is the schematic view of the position relationship between the sliding support and the bottom wiper of the application; Figure 8 It is the structural schematic view of the extension plate and the top wiper of the application.

[0017] In the figure: 1, mounting frame; 11, damper; 2, miniature explosion-proof motor; 21, rotating disc; 22, buffer pad; 23, explosion-proof frame; 231, locking bolt; 24, transverse guardrail; 25, buckling frame; 26, limit block; 27, push rod; 3, explosion-proof lamp shell; 31, explosion-proof lamp; 32, temperature sensor; 33, top shell; 34, annular groove; 35, transverse heat dissipation fin; 36, explosion-proof cover; 37, longitudinal heat dissipation fin; 38, top cover; 4, sliding support; 41, bottom wiper; 42, spring; 43, extension plate; 5, top wiper; 6, insertion slot; 61, air pipe; 62, built-in air port; 63, external air port. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the application will be apparently and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments. Based on the embodiments in the application, all the other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the application.

[0019] Embodiment one: please refer to Figures 1-8 An improved explosion-proof lamp, comprising a mounting frame 1, a miniature explosion-proof motor 2 fixed inside the bottom end of the mounting frame 1, a rotating disc 21 fixed to the output shaft of the miniature explosion-proof motor 2, a buffer pad 22 fixed to the top of the rotating disc 21, a lamp assembly for lighting arranged on the top of the buffer pad 22, an explosion-proof frame 23 fixed to the surface of the side edge of the rotating disc 21, a transverse guardrail 24 fixed to the surface of the explosion-proof frame 23, a buckling frame 25 hingedly connected to one side of the top end of the explosion-proof frame 23 through a locking bolt 231, a limit block 26 fixed to the surface of the side close to the miniature explosion-proof motor 2 of the buckling frame 25, and a push rod 27 fixed to the top of the buckling frame 25; The lamp assembly comprises a top shell 33, the top of the top shell 33 is fixed with transverse heat dissipation fins 35, the surface of the transverse heat dissipation fins 35 is slidably connected with a sliding support 4, the inside of the sliding support 4 is fixed with a bottom wiper blade 41, and the bottom wiper blade 41 is slidably connected with the transverse heat dissipation fins 35, the bottom of the mounting frame 1 is fixed with a damper 11, and the lamp assembly further comprises an explosion-proof lamp shell 3, the explosion-proof lamp shell 3 is clamped on the top of the buffer pad 22, the inside of the explosion-proof lamp shell 3 is fixed with an explosion-proof lamp 31, the surface of the explosion-proof lamp 31 is fixed with a temperature sensor 32, the surface of the top end of the explosion-proof lamp shell 3 is threadedly connected with the top shell 33, the surface of the top shell 33 is provided with an annular groove 34, and the limiting block 26 is slidably connected with the annular groove 34; The top of the top shell 33 is fixed with an explosion-proof cover 36, the surface of the explosion-proof cover 36 is fixed with longitudinal heat dissipation fins 37, the top of the explosion-proof cover 36 is fixed with a top cover 38 through bolts, one end of the damper 11 is fixed with the top cover 38, the surface of the side, close to the explosion-proof cover 36, of the bottom wiper blade 41 is fixed with a spring 42, one end of the spring 42 is fixed with the explosion-proof cover 36, the top of the sliding support 4 is fixed with an extension plate 43, the top of the extension plate 43 is fixed with a top wiper blade 5, the top wiper blade 5 is slidably connected with the longitudinal heat dissipation fins 37, the push rod 27 is arranged in an inclined manner, the two ends of the side, away from the explosion-proof cover 36, of the extension plate 43 are arranged in an arc shape, and the running track of the push rod 27 is in contact with the extension plate 43; In the actual operation process, first, the lamp assembly is placed on the inside of the explosion-proof frame 23, so that the bottom of the explosion-proof lamp shell 3 is clamped on the top of the buffer pad 22, then each buckling frame 25 is turned over, so that the buckling frame 25 drives the limiting block 26 to turn over, so that the limiting block 26 is clamped in the inside of the annular groove 34, and the top shell 33 is preliminarily limited, and the buckling frame 25 is attached to the outside of the top shell 33, then the explosion-proof frame 23 and the buckling frame 25 are locked through the locking bolt 231, then the damper 11 and the top cover 38 are fixed through the bolts, so that the entire lamp assembly is fixed on the top of the buffer pad 22, then the mounting frame 1 is fixed on the wall surface of the mine tunnel through the bolts, so that the fixing of the present application is completed; Specifically, when the present application needs to be used for lighting, the explosion-proof lamp 31 is started through the controller, the explosion-proof lamp 31 is used for lighting, and the temperature of the explosion-proof lamp 31 is monitored through the temperature sensor 32, in the process of long-term lighting, dust is adhered to the surface of the transverse heat dissipation fins 35 and the longitudinal heat dissipation fins 37, therefore, the miniature explosion-proof motor 2 is started through the controller, the rotating disc 21 and the buffer pad 22 are driven to rotate through the miniature explosion-proof motor 2, the explosion-proof frame 23 and the buckling frame 25 are driven to rotate through the rotating disc 21, so that the buckling frame 25 rotates around the explosion-proof lamp shell 3, that is, the buckling frame 25 is driven to rotate around the explosion-proof lamp shell 3 through the transmission of the miniature explosion-proof motor 2; The buckle frame 25 is in the process of rotating, and its surface contacts the curved surface of the transverse heat dissipating fin 35, and then scrapes the curved surface of the transverse heat dissipating fin 35. At the same time, the buckle frame 25 drives the push rod 27 to rotate around the explosion-proof cover 36 during the rotation. The push rod 27 gradually approaches the extension plate 43 during the rotation until it contacts the extension plate 43, thereby causing the push rod 27 to push the extension plate 43, so that the extension plate 43 drives the sliding bracket 4 and the bottom scraper 41 to slide along the surface of the transverse heat dissipating fin 35, so that the sliding bracket 4 drives the bottom scraper 41 to move toward the top shell 33. The bottom scraper 41 scrapes the surfaces on both sides of the transverse heat dissipating fin 35 during the movement, thereby cleaning the surface of the transverse heat dissipating fin 35, preventing dust from adhering to the surface of the transverse heat dissipating fin 35, and preventing dust from hindering the heat dissipation of the transverse heat dissipating fin 35, thereby improving the heat dissipation efficiency of the transverse heat dissipating fin 35. At the same time, when the extension plate 43 moves toward the top shell 33, the extension plate 43 synchronously drives the top scraper 5 to move toward the longitudinal heat dissipation fins 37 until the top scraper 5 is sleeved on the outside of the longitudinal heat dissipation fins 37 and scrapes the surface of the longitudinal heat dissipation fins 37, thereby cleaning the surface of the longitudinal heat dissipation fins 37. As a result, dust on the surface of the transverse heat dissipation fins 35 and the longitudinal heat dissipation fins 37 can be removed, thereby ensuring that the lamp assembly improves the heat dissipation efficiency of the transverse heat dissipation fins 35 and the longitudinal heat dissipation fins 37 without destroying the sealing performance, thereby improving the explosion-proof performance of the present invention. Furthermore, during the rotation of the push rod 27, the push rod 27 slowly pushes the extension plate 43 to drive the sliding bracket 4 and the bottom scraper 41 to move along the transverse heat dissipation fins 35 toward the top shell 33, until the sliding bracket 4 and the top shell 33 are abutted, and the push rod 27 pushes the extension plate 43 to a maximum stroke. At this time, the push rod 27 maintains the rotation state, and the push rod 27 gradually moves away from the extension plate 43 until it is released from contact with the extension plate 43, and the extension plate 43 is reset under the elastic force of the spring 42. The reset extension plate 43 drives the sliding bracket 4 and the bottom scraper 41 to reset along the transverse heat dissipation fins 35. During the reset process of the bottom scraper 41, the transverse heat dissipation fins 35 are cleaned again, and wait for the next push of the push rod 27.

[0020] It should be noted that all devices of the present invention are controlled by a controller. In order to avoid excessive force and blockage between the push rod 27 and the extension plate 43, the speed of the micro explosion-proof motor 2 needs to be controlled at five to ten revolutions per minute. When the micro explosion-proof motor 2 is not started, the explosion-proof frame 23, the horizontal guardrail 24 and the snap-fit ​​frame 25 serve as explosion-proof structures to protect the explosion-proof lamp housing 3.

[0021] Embodiment 2: A cleaning piece is provided on the surface of the explosion-proof frame 23 close to the explosion-proof lamp housing 3, and the cleaning piece is in contact with the surface of the explosion-proof lamp housing 3; based on embodiment 1, when the explosion-proof lamp housing 3 is used in a mine for a long time, not only the transverse heat dissipation fins 35 and the longitudinal heat dissipation fins 37 are prone to adhere to dust, but the surface of the explosion-proof lamp housing 3 will also adhere to dust. During the operation of embodiment 1, when the push rod 27 is driven by the micro explosion-proof motor 2 to drive the snap-fit ​​frame 25 to rotate around the explosion-proof lamp housing 3, the snap-fit ​​frame 25 synchronously drives the cleaning piece to rotate around the explosion-proof lamp housing 3, and the cleaning piece is in contact with the surface of the explosion-proof lamp housing 3. Therefore, when the micro explosion-proof motor 2 is started, the micro explosion-proof motor 2 can drive the cleaning piece to clean the surface of the explosion-proof lamp housing 3. In actual use, the cleaning piece includes soft hair tufts, cleaning strips, etc.

[0022] Therefore, the present invention cleans the explosion-proof lamp housing 3, thereby preventing dust from adhering to the surface of the explosion-proof lamp housing 3 and affecting the light transmittance, and at the same time preventing dust from hindering the heat dissipation of the explosion-proof lamp housing 3, thereby improving the efficiency of heat transfer from the inside of the explosion-proof lamp housing 3 to the outside through the explosion-proof lamp housing 3.

[0023] It should be noted that there are multiple snap-fit ​​frames 25, and the cleaning piece is only set on the surface of one of the snap-fit ​​frames 25. The explosion-proof lamp housing 3 consists of two parts: a threaded interface and a lampshade. The cleaning piece only contacts the lampshade part of the explosion-proof lamp housing 3, and the part that is clamped on the top of the buffer pad 22 is the lampshade part of the explosion-proof lamp housing 3.

[0024] Embodiment 3: A slot 6 is provided on the surface of the explosion-proof cover 36, and a vent pipe 61 is slidably and sealedly connected inside the slot 6. The end of the vent pipe 61 close to the extension plate 43 is fixed to the extension plate 43. The surface of the vent pipe 61 close to the explosion-proof cover 36 is provided with an internal air port 62, and the surface of the vent pipe 61 close to the extension plate 43 is provided with an external air port 63; Specifically, based on the first embodiment, when the push rod 27 pushes the extension plate 43 to drive the sliding bracket 4 to move toward the top shell 33, the sliding bracket 4 drives the extension plate 43 and the top scraper 5 to move toward the longitudinal heat dissipation fins 37, thereby causing the extension plate 43 to drive the vent tube 61 to slide inside the slot 6, and the vent tube 61 is inserted into the interior of the explosion-proof cover 36; Since the end of the vent pipe 61 near the explosion-proof cover 36 is provided with a built-in air port 62, and the end near the extension plate 43 is provided with a built-in air port 62, refer to the appendix of the specification. Figure 6When the push rod 27 is not in contact with the extension plate 43, the extension plate 43 not in contact with the push rod 27 is in a prohibited state, that is, the slot 6 is in an externally extended state, at this time, the external air port 63 is exposed to the air, and the external air enters the inside of the air pipe 61 through the external air port 63, at this time, the internal air port 62 is located in the inside of the slot 6 and is sealed by the slot 6, so the external air is stored in the inside of the air pipe 61; When the push rod 27 is in contact with the extension plate 43, the extension plate 43 is driven by the push rod 27 to push the air pipe 61 into the inside of the explosion-proof cover 36, at this time, the internal air port 62 extends from the inside of the slot 6 to the inside of the explosion-proof cover 36, and the external air port 63 enters the inside of the slot 6 and is sealed by the slot 6, after the internal air port 62 extending to the inside of the explosion-proof cover 36 loses the sealing of the slot 6, the air stored in the inside of the air pipe 61 is released into the inside of the explosion-proof cover 36; Further, the application can transport the external air into the inside of the explosion-proof cover 36 without communication with the outside, and then complete heat exchange, reduce the heat in the inside of the explosion-proof cover 36, and further improve the heat dissipation effect of the application; Further, when the push rod 27 is out of contact with the extension plate 43, the extension plate 43 is reset under the elastic force of the spring 42, at this time, the extension plate 43 drives the air pipe 61 to be pushed out from the inside of the slot 6, in the process of the air pipe 61 being pushed out, the hot air in the explosion-proof cover 36 enters the inside of the air pipe 61 through the internal air port 62, in the process of the slot 6 being continuously pushed out, the internal air port 62 is sealed by the slot 6 again, and the external air port 63 is pushed out from the inside of the slot 6 and is out of the sealing of the slot 6, and is in communication with the outside again, so that the air pipe 61 takes the hot air in the explosion-proof cover 36 away from the inside of the explosion-proof cover 36 and discharges it to the outside through the external air port 63; When the miniature explosion-proof motor 2 continuously operates, that is, each push rod 27 repeatedly pushes each extension plate 43 periodically, the extension plate 43 drives the air pipe 61 to move repeatedly in the inside of the slot 6, so that the explosion-proof cover 36 transports the hot air in the explosion-proof cover 36 to the outside without communication with the outside, and brings the normal temperature air from the outside into the explosion-proof cover 36 through the air pipe 61, strengthens the heat exchange of the air in the explosion-proof cover 36, and further improves the heat dissipation efficiency of the application; Further, when the extension plate 43 repeatedly approaches and moves away from the longitudinal heat dissipation fin 37 under the driving of the push rod 27, the extension plate 43 plays a role of disturbing the air around the explosion-proof cover 36, so that the hot air discharged from the explosion-proof cover 36, and the heat transferred by the horizontal heat dissipation fin 35 and the longitudinal heat dissipation fin 37, can quickly complete heat exchange with the normal temperature air around the application, avoid the hot air staying around the explosion-proof cover 36 for a long time, make the normal temperature air enter the inside of the explosion-proof cover 36 stably, and further improve the heat dissipation efficiency of the application.

[0025] While embodiments of the application have been shown and described, it is to be understood that the application is not limited to the details of the embodiments described, since numerous changes, modifications, substitutions and variations can be made thereto without departing from the spirit and scope of the application as defined by the appended claims and their equivalents.

Claims

1. An improved explosion-proof lamp, comprising a mounting frame (1), characterized in that: A micro explosion-proof motor (2) is fixed inside the bottom end of the mounting frame (1), a turntable (21) is fixed to the output shaft of the micro explosion-proof motor (2), a buffer pad (22) is fixed on the top of the turntable (21), and a lamp assembly for lighting is provided on the top of the buffer pad (22); An explosion-proof frame (23) is fixed to the surface of the side of the turntable (21), a transverse guardrail (24) is fixed to the surface of the explosion-proof frame (23), a buckle frame (25) is hinged to one side of the top of the explosion-proof frame (23) through a locking bolt (231), a limit block (26) is fixed to the surface of the buckle frame (25) on the side close to the micro explosion-proof motor (2), and a push rod (27) is fixed to the top of the buckle frame (25); The lamp assembly comprises a top shell (33), and a transverse heat dissipation fin (35) is fixed on the top of the top shell (33); The surface of the transverse heat dissipation fin (35) is slidably connected to a sliding bracket (4), a bottom scraper (41) is fixed inside the sliding bracket (4), and the bottom scraper (41) is slidably connected to the transverse heat dissipation fin (35).

2. The improved explosion-proof lamp according to claim 1, characterized in that: A damper (11) is fixed to the bottom of the top end of the mounting frame (1).

3. The improved explosion-proof lamp according to claim 1, characterized in that: The lamp assembly further comprises an explosion-proof lamp housing (3), the explosion-proof lamp housing (3) being clamped on the top of the buffer pad (22), an explosion-proof lamp (31) being fixed inside the explosion-proof lamp housing (3), a temperature sensor (32) being fixed on the surface of the explosion-proof lamp (31), a top shell (33) being threadedly connected to the surface of the top of the explosion-proof lamp housing (3), an annular groove (34) being formed on the surface of the top shell (33), and a limit block (26) being slidably connected to the annular groove (34).

4. The improved explosion-proof lamp according to claim 2, characterized in that: An explosion-proof cover (36) is fixed to the top of the top shell (33), longitudinal heat dissipation fins (37) are fixed to the surface of the explosion-proof cover (36), a top cover (38) is fixed to the top of the explosion-proof cover (36) by bolts, and the top of the top cover (38) is fixed to one end of the damper (11).

5. The improved explosion-proof lamp according to claim 4, characterized in that: A spring (42) is fixed to the surface of the bottom scraper (41) on the side close to the explosion-proof cover (36), and one end of the spring (42) is fixed to the explosion-proof cover (36). An extension plate (43) is fixed to the top of the sliding bracket (4), and a top scraper (5) is fixed to the top of the extension plate (43). The top scraper (5) is slidably connected to the longitudinal heat dissipation fin (37).

6. The improved explosion-proof lamp according to claim 5, characterized in that: The push rod (27) is arranged in an inclined manner, and both ends of the extension plate (43) away from the explosion-proof cover (36) are arranged in an arc shape, and the running track of the push rod (27) contacts the extension plate (43).

7. The improved explosion-proof lamp according to claim 1, characterized in that: A cleaning piece is provided on the surface of the explosion-proof frame (23) on a side close to the explosion-proof lamp housing (3), and the cleaning piece is in contact with the surface of the explosion-proof lamp housing (3).

8. The improved explosion-proof lamp according to claim 5, characterized in that: A slot (6) is provided on the surface of the explosion-proof cover (36), and a vent pipe (61) is slidably and sealably connected inside the slot (6). One end of the vent pipe (61) close to the extension plate (43) is fixed to the extension plate (43).

9. The improved explosion-proof lamp according to claim 5, characterized in that: A built-in air port (62) is provided on the surface of the vent pipe (61) close to the explosion-proof cover (36), and an external air port (63) is provided on the surface of the vent pipe (61) close to the extension plate (43).

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