CN112762368B

CN112762368B - Explosion-proof lamp

Info

Publication number: CN112762368B
Application number: CN202110038476.4A
Authority: CN
Inventors: 郑巨雷; 郑涵
Original assignee: Zhonghong Explosion Proof Electrical Co ltd
Current assignee: Zhonghong Explosion Proof Electrical Co ltd
Priority date: 2021-01-12
Filing date: 2021-01-12
Publication date: 2023-03-24
Anticipated expiration: 2041-01-12
Also published as: CN112762368A

Abstract

The invention discloses a novel explosion-proof lamp, which adopts the technical scheme that: the novel LED lamp comprises a shell, a bulb, a protective cover, a mesh enclosure and an upper cover, wherein the shell is cylindrical, the bulb is arranged at the lower end of the shell, the protective cover and the mesh enclosure are respectively arranged at the lower end of the shell, a heat dissipation mechanism is arranged inside the shell and consists of an axial flow fan and a heat dissipation plate assembly, an air inlet and an air outlet are respectively formed in the upper end and the lower end of the axial flow fan, an air outlet pipe is arranged at the lower end of the air outlet, the other end of the air outlet pipe is fixedly connected with the mesh enclosure, the mesh enclosure is formed by mutually splicing a plurality of vertical rods and transverse rods, each vertical rod is a hollow rod piece, a plurality of dust removal ports are formed in one side of each vertical rod corresponding to the bulb, an annular flange is arranged at the upper end of the shell, a damping device is fixedly arranged at the upper end of the annular flange, and the upper cover is detachably connected with the damping device; the invention has good heat dissipation and shock absorption effects, and can automatically remove dust on the protective cover.

Description

Explosion-proof lamp

Technical Field

The invention relates to the technical field of explosion-proof lamps, in particular to an explosion-proof lamp.

Background

The explosion-proof lamp is used in dangerous places where combustible gas and dust exist, and can prevent electric arcs, sparks and high temperature possibly generated in the lamp from igniting the combustible gas and dust in the surrounding environment, so that the lamp meeting the explosion-proof requirement, also called as an explosion-proof lamp and an explosion-proof illuminating lamp, and different combustible gas mixture environments have different requirements on the explosion-proof grade and the explosion-proof form of the explosion-proof lamp.

At present, chinese patent with publication number CN110486633B discloses an LED maintenance-free explosion-proof lamp, which comprises a housing, an end cap and a light emitting element mounted on the housing, wherein the end cap is in threaded connection with the housing, a plurality of heat dissipating fins are circumferentially distributed on the housing, a limiting rod is fixed on the side wall of the end cap, a positioning block is fixed on the side wall of the housing, a positioning hole for the limiting rod to penetrate through is arranged on the positioning block, the cross sections of the limiting rod and the positioning hole are both square, and a stopper for limiting the limiting rod to move out of the positioning hole is arranged on one side of the positioning block; the radiating fins comprise fixed pieces and movable pieces which are arranged at intervals, wherein the fixed pieces are integrally arranged on the shell, and the movable pieces are detachably connected with the shell through the mounting pieces.

However, the above solution still has some disadvantages, such as: 1. the lamp completely seals electrical components which can cause explosion in a shell, and the shell is provided with a small clearance hole, so that even if the interior of the shell explodes, the flame in the shell can greatly reduce energy and is not enough to ignite external gas when passing through the clearance hole, but the structure ensures that the air inside and outside the shell is difficult to interact, the heat generated by the electrical components during operation is slowly dissipated, and the lamp is always at a high temperature, so that the service life of the lamp is low; 2. when the explosion-proof lamp is applied to underground engineering, because a large amount of blasting and chiseling work is required in the construction process, the explosion-proof lamp is easy to vibrate greatly, however, the traditional explosion-proof lamp and the traditional explosion-proof lamp do not have good shock absorption measures, the vibration can cause the internal abrasion of the lamp body, and the service life is reduced; 3. because the explosion-proof lamp is generally in the more place of dust, in the work progress, can accumulate more dust on the safety shield, if not clear up the dust, can influence the normal illuminating effect of explosion-proof lamp.

Disclosure of Invention

In view of the problems mentioned in the background art, an object of the present invention is to provide an explosion-proof lamp, which has good heat dissipation and shock absorption effects, and can automatically remove dust on a protective cover.

The technical purpose of the invention is realized by the following technical scheme:

the utility model provides an explosion-proof lamp, includes casing, bulb, protection casing, screen panel and upper cover, the casing is cylindrical, the lower extreme of casing is provided with the bulb, the lower extreme of casing is different from a plurality of bleeder vents have been seted up to the position department of bulb, the protection casing the screen panel sets up respectively the lower extreme of casing, the inside of casing is provided with heat dissipation mechanism, heat dissipation mechanism comprises axial fan and radiator module, axial fan's upper and lower both ends are provided with air intake and air outlet respectively, the lower extreme of air outlet is provided with out the tuber pipe, the other end and the screen panel fixed connection of going out the tuber pipe, the screen panel is formed by many montants and many horizontal poles concatenation each other, the montant is hollow rod spare, the montant is in corresponding to a plurality of dust removal mouths have been seted up to one side of bulb, the upper end an organic whole of casing is provided with cyclic annular flange, the fixed damping device that is provided with in cyclic annular flange's upper end, the upper cover with damping device can dismantle the connection, the inside of casing is fixed and is provided with temperature sensor, the fixed backup pad that is provided with in the inside of casing, be provided with the backup pad, be provided with constant current controller and control module electric connection in the backup pad.

Furthermore, the radiating fin component is formed by splicing a plurality of radiating fins to form a circular ring, the radiating fins are copper sheets, and the axial flow fan is arranged in the middle of the plurality of radiating fins.

By adopting the technical scheme, the quantity of the radiating fins can be increased while the internal space of the explosion-proof lamp is not occupied, and the radiating effect of the radiating fins is effectively ensured.

Furthermore, the one end of going out the tuber pipe is in corresponding to the position department of montant sets up flutedly, the montant can stretch into to the inside of recess, the inside of recess is provided with first magnet, the upper end of montant corresponding to the fixed second magnet that is provided with in position department of first magnet, first magnet with the magnetism of second magnet is opposite.

Through adopting above-mentioned technical scheme, when installing the screen panel at the lower extreme of casing, the montant can stretch into the inside to going out the tuber pipe to accomplish the montant and go out the fixed connection between the tuber pipe, set up magnet and can guarantee the stability of its connection.

Further, many the montant is fixed to be set up on the mounting panel, the mounting panel passes through many screws fixed mounting and is in the lower extreme of casing.

Through adopting above-mentioned technical scheme, when fixed screen panel, can fix the screen panel at the lower extreme of casing through fixed mounting panel.

Furthermore, a cleaning opening is formed in the position, different from the dust removal opening, of the bottom of the vertical rod, the opening direction of the cleaning opening is vertical downward, and a plug is arranged on the cleaning opening.

Through adopting above-mentioned technical scheme, operating personnel is when clearing up the inside of montant, and through opening the end cap, the inside debris of montant can be discharged through clean mouthful, and is convenient, swift, can prevent to influence the air-out effect of dust removal mouth because of the inside debris of montant is too much.

Furthermore, it is intraductal at corresponding to go out the tuber pipe the position department of air outlet is provided with anti-backflow device, anti-backflow device comprises a plurality of baffles and a plurality of supporting spring, and is a plurality of the cross-sectional area after the baffle concatenation is greater than the cross-sectional area of air outlet, it is a plurality of the baffle passes through the hinge setting and is in the inside of going out the tuber pipe, go out the tuber pipe with fixed supporting spring that is provided with between the baffle.

Through adopting above-mentioned technical scheme, axial fan is at the during operation, and the leeward can follow anti-backflow device and locate to pass through, flows from dust removal mouth or clean mouthful through going out tuber pipe, montant, through setting up anti-backflow device, and anti-backflow device can avoid air admission air outlet department to exert an influence to axial fan.

Furthermore, damping device comprises sliding block, fixed block, connecting rod and damping spring, the number of sliding block is two, two the sliding block slides and sets up the upper end of cyclic annular flange, two the sliding block respectively through the connecting rod with the fixed block is connected, the fixed block with be provided with between the sliding block damping spring fixedly.

Through adopting above-mentioned technical scheme, when taking place violent vibrations, damping device can begin work, and the casing can slide in the upper cover, avoids causing the harm to casing and the inside subassembly of casing.

Furthermore, the upper end of the fixed block is provided with a threaded hole, the upper cover is provided with a through hole at a position corresponding to the threaded hole, and the upper cover and the fixed block are fixedly connected with each other through a fastening bolt.

Through adopting above-mentioned technical scheme, be convenient for fix damping device and upper cover.

Furthermore, the lower end of the upper cover is detachably connected with a fixing plate through a hexagon socket head cap screw, and the annular flange is abutted against the fixing plate.

Through adopting above-mentioned technical scheme, set up the fixed plate and can play spacing and supported effect to the casing.

In summary, the invention mainly has the following beneficial effects:

1. according to the explosion-proof lamp, the axial flow fan and the radiating fin assembly are arranged inside the explosion-proof lamp, the plurality of radiating holes are formed in the lower end of the shell, when the temperature inside the shell rises, the temperature sensor transmits the monitored temperature to the control module, the control module controls the axial flow fan to be started, heat inside the shell is absorbed into the air inlet after being radiated by the radiating fin assembly and is exhausted from the air outlet and the air outlet pipe, and therefore the radiating effect of the explosion-proof lamp is effectively improved.

2. According to the invention, by arranging the damping device, when the explosion-proof lamp is applied to underground engineering and causes the explosion-proof lamp to vibrate greatly, the damping device arranged between the shell and the upper cover can work, at the moment, the two sliding blocks are extruded by the shell to drive the connecting rod to move, the sliding blocks can slide at the upper end of the annular flange, so that the vertical height of the connecting rod is changed, and the damping spring can be compressed by extrusion, so that a good damping effect is achieved on the shell.

3. According to the invention, the vertical rod is of a hollow pipe structure, the vertical rod is communicated with the air outlet pipe, and the vertical rod is provided with the plurality of dust removing openings, when more dust is accumulated on the protective cover and the axial flow fan starts to work, air flow can flow into the vertical rod along the air outlet pipe and is sprayed out of the plurality of dust removing openings, and the air flow can be sprayed to the outer end of the protective cover, so that the dust on the protective cover is removed, the air flow generated by the axial flow fan is effectively utilized, and a good dust removing effect can be achieved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 isbase:Sub>A cross-sectional view taken at A-A of FIG. 1;

FIG. 3 is a partially enlarged view of portion B of FIG. 2;

FIG. 4 is an enlarged view of a portion C of FIG. 2;

FIG. 5 is an enlarged partial view of section D of FIG. 2;

FIG. 6 is an enlarged view of a portion E of FIG. 2;

fig. 7 is a schematic structural view of a heat sink assembly according to the present invention.

In the figure: 1. a housing; 101. air holes are formed; 102. an annular flange; 2. a bulb; 3. a protective cover; 4. A mesh enclosure; 401. a vertical rod; 402. a cross bar; 4011. a dust removal port; 4012. cleaning the mouth; 5. an upper cover; 6. A heat dissipation mechanism; 7. an axial flow fan; 701. an air inlet; 702. an air outlet; 8. a heat sink assembly; 9. An air outlet pipe; 901. a groove; 10. a first magnet; 11. a second magnet; 12. mounting a plate; 13. a plug; 14. a backflow prevention device; 15. a baffle plate; 16. a support spring; 17. a damping device; 1701. a slider; 1702. a fixed block; 1703. a connecting rod; 1704. a damping spring; 18. a fixing plate; 19. a socket head cap screw; 20. fastening a bolt; 21. a temperature sensor; 22. a support plate; 23. a constant current controller; 24. and a control module.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clear and fully described, embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

Referring to fig. 1-7, an explosion-proof lamp comprises a housing 1, a bulb 2, a protective cover 3, a mesh enclosure 4 and an upper cover 5, wherein the upper cover 5 can be fixed on a roof or a wall through screws and other components, the housing 1 is cylindrical, the housing 1 adopts a glass fiber reinforced unsaturated polyester resin compression molding shell, the housing 1 is an increased-installation type structure and has the advantages of high strength, impact resistance, water resistance, dust resistance, corrosion resistance, static resistance and the like, a plurality of clearance holes are formed in the outer side of the housing 1 and are used for heat dissipation and ventilation of the explosion-proof lamp, the protective cover 3 adopts a polycarbonate transparent lampshade, the bulb 2 is arranged at the lower end of the housing 1, a plurality of air holes 101 are formed in the position, different from the bulb 2, of the lower end of the housing 1, the protective cover 3 and the mesh enclosure 4 are respectively arranged at the lower end of the housing 1, a heat dissipation mechanism 6 is arranged inside the housing 1, the heat dissipation mechanism 6 consists of an axial flow fan 7 and a heat dissipation sheet assembly 8, an air inlet 701 and an air outlet 702 are respectively arranged at the upper end and the lower end of the axial flow fan 7, an air outlet pipe 9 is arranged at the lower end of the air outlet 702, the other end of the air outlet pipe 9 is fixedly connected with a mesh enclosure 4, the mesh enclosure 4 is formed by mutually welding a plurality of vertical rods 401 and a plurality of cross rods 402, each vertical rod 401 is a hollow rod, a plurality of dust removal ports 4011 are formed in one side of each vertical rod 401 corresponding to the corresponding bulb 2, each dust removal port 4011 is a conical port so as to increase the area of air flow sprayed out of the dust removal ports 4011 and increase the dust removal range, an annular flange 102 is integrally arranged at the upper end of the shell 1, a damping device 17 is fixedly arranged at the upper end of the annular flange 102, the upper cover 5 is detachably connected with the damping device 17 through fastening bolts 20, a temperature sensor 21 is fixedly arranged inside the shell 1, a support plate 22 is fixedly arranged inside the shell 1, and a constant current controller 23 and a control module 24 are arranged on the support plate 22, the temperature sensor 21 is electrically connected with the control module 24.

Referring to fig. 2 and 7, the heat sink assembly 8 is formed by mutually splicing a plurality of heat sink fins to form a circular ring, the heat sink fins are copper sheets, and the axial flow fan 7 is disposed in the middle of the plurality of heat sink fins.

Referring to fig. 2 and 3, a groove 901 is formed in one end of the air outlet pipe 9 at a position corresponding to the vertical rod 401, the vertical rod 401 can extend into the groove 901, a first magnet 10 is disposed inside the groove 901, a second magnet 11 is fixedly disposed at an upper end of the vertical rod 401 at a position corresponding to the first magnet 10, and the magnetism of the first magnet 10 is opposite to that of the second magnet 11.

Referring to fig. 2 and 3, a plurality of vertical rods 401 are fixedly disposed on the mounting plate 12, and the mounting plate 12 is fixedly mounted at the lower end of the housing 1 by a plurality of screws.

Referring to fig. 2 and 4, a cleaning opening 4012 is formed in a position, different from the dust removal opening 4011, at the bottom of the vertical rod 401, an opening direction of the cleaning opening 4012 is vertical downward, a plug 13 is arranged on the cleaning opening 4012, and some sundries are accumulated at the bottom of the vertical rod 401 due to large volume, and at this time, the sundries need to be cleaned through the cleaning opening 4012.

Referring to fig. 2 and 5, a backflow prevention device 14 is disposed in the air outlet pipe 9 at a position corresponding to the air outlet 702, the backflow prevention device 14 is composed of two baffles 15 and two supporting springs 16, a cross-sectional area of the spliced two baffles 15 is larger than a cross-sectional area of the air outlet 702 to ensure a tight shape after splicing, the two baffles 15 are disposed inside the air outlet pipe 9 through hinges, and the supporting springs 16 are fixedly disposed between the air outlet pipe 9 and the baffles 15.

Referring to fig. 2 and 6, the damping device 17 is composed of two sliding blocks 1701, a fixed block 1702, a connecting rod 1703 and a damping spring 1704, the two sliding blocks 1701 are slidably disposed at the upper end of the annular flange 102, the two sliding blocks 1701 are respectively connected with the fixed block 1702 through the connecting rod 1703, and the damping spring 1704 is fixedly disposed between the fixed block 1702 and the sliding blocks 1701.

Referring to fig. 2 and 6, a threaded hole is opened at an upper end of the fixing block 1702, a through hole is opened at a position corresponding to the threaded hole of the upper cover 5, and the upper cover 5 and the fixing block 1702 are fixedly connected to each other by a fastening bolt 20.

Referring to fig. 2 and 6, the lower end of the upper lid 5 is detachably connected to a fixing plate 18 by a socket head cap screw 19, and an annular flange 102 is rested on the fixing plate 18.

When the explosion-proof lamp is used, after the temperature in the shell 1 rises, the temperature sensor 21 transmits the monitored temperature to the control module 24, the control module 24 controls the axial flow fan 7 to start, the heat in the shell 1 is absorbed into the air inlet 701 after being dissipated by the radiating fin assembly 8 and is exhausted from the air outlet 702 and the air outlet pipe 9, and the heat dissipation effect of the explosion-proof lamp is effectively improved; when more dust is accumulated on the protective cover 3 and the axial flow fan 7 starts to work, the air flow can flow into the vertical rod 401 along the air outlet pipe 9 and is sprayed out of the dust removing openings 4011, and the air flow can be sprayed to the outer end of the protective cover 3, so that the dust on the protective cover 3 is removed, the air flow generated by the axial flow fan 7 is effectively utilized, and a good dust removing effect can be achieved; be applied to underground works when the explosion-proof lamp, when initiating the explosion-proof lamp and shake by a wide margin, damping device 17 that sets up between casing 1 and the upper cover 5 can work, and two sliding blocks 1701 receive casing 1's extrusion drive connecting rod 1703 and remove this moment, and sliding block 1701 can slide in the upper end of cyclic annular flange 102 to change connecting rod 1703's vertical height, damping spring 1704 receives the extrusion can be compressed, thereby plays good shock attenuation effect to casing 1.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an explosion-proof lamp, includes casing (1), bulb (2), protection casing (3), screen panel (4) and upper cover (5), its characterized in that: the shell (1) is cylindrical, the lower end of the shell (1) is provided with the bulb (2), the lower end of the shell (1) is different from the position of the bulb (2) and is provided with a plurality of air holes (101), the protective cover (3) and the mesh enclosure (4) are respectively arranged at the lower end of the shell (1), a heat dissipation mechanism (6) is arranged inside the shell (1), the heat dissipation mechanism (6) consists of an axial flow fan (7) and a heat dissipation fin component (8), the upper end and the lower end of the axial flow fan (7) are respectively provided with an air inlet (701) and an air outlet (702), the lower end of the air outlet (702) is provided with an air outlet pipe (9), the other end of the air outlet pipe (9) is fixedly connected with the mesh enclosure (4), the mesh enclosure (4) is formed by mutually splicing a plurality of vertical rods (401) and a plurality of transverse rods (402), the vertical rods (401) are hollow rod components, the shell (401) is a hollow rod component, the shell (401) is provided with a plurality of air outlet openings (4011) at one side corresponding to the bulb (2), the vertical rods (9) are connected with a plurality of hollow flanges (401), the upper end of the shock absorption flange (102) is connected with a shock absorption flange (17), and the shock absorption device (102) is provided with a shock absorption flange (17), the temperature sensor (21) is fixedly arranged in the shell (1), the supporting plate (22) is fixedly arranged in the shell (1), the constant current controller (23) and the control module (24) are arranged on the supporting plate (22), and the temperature sensor (21) is electrically connected with the control module (24).

2. An explosion-proof lamp as defined in claim 1, wherein: the radiating fin component (8) is formed by mutually splicing a plurality of radiating fins to form a circular ring, the radiating fins are copper sheets, and the axial flow fan (7) is arranged in the middle of the plurality of radiating fins.

3. An explosion-proof lamp as defined in claim 1, wherein: one end of the air outlet pipe (9) is provided with a groove (901) at a position corresponding to the vertical rod (401), the vertical rod (401) can stretch into the inside of the groove (901), a first magnet (10) is arranged inside the groove (901), a second magnet (11) is fixedly arranged at the position corresponding to the first magnet (10) at the upper end of the vertical rod (401), and the first magnet (10) and the second magnet (11) are opposite in magnetism.

4. An explosion-proof lamp as claimed in claim 1, wherein: many montant (401) is fixed to be set up on mounting panel (12), mounting panel (12) are in through many screw fixed mounting the lower extreme of casing (1).

5. An explosion-proof lamp as defined in claim 1, wherein: the bottom of montant (401) is different from clean mouth (4012) has been seted up to the position department of dust removal mouth (4011), the opening direction of clean mouth (4012) is vertical downwards, be provided with end cap (13) on clean mouth (4012).

6. An explosion-proof lamp as defined in claim 1, wherein: go out tuber pipe (9) in corresponding to the position department of air outlet (702) is provided with anti-backflow device (14), anti-backflow device (14) comprise a plurality of baffles (15) and a plurality of supporting spring (16), and are a plurality of the cross-sectional area after baffle (15) concatenation is greater than the cross-sectional area of air outlet (702), it is a plurality of baffle (15) are in through hinge setting air-out pipe's (9) inside, air-out pipe (9) with fixed supporting spring (16) that are provided with between baffle (15).

7. An explosion-proof lamp as defined in claim 1, wherein: the damping device (17) comprises two sliding blocks (1701), a fixed block (1702), a connecting rod (1703) and a damping spring (1704), the two sliding blocks (1701) are arranged at the upper end of the annular flange (102) in a sliding mode, the two sliding blocks (1701) are respectively connected with the fixed block (1702) through the connecting rod (1703), and the damping spring (1704) is fixedly arranged between the fixed block (1702) and the sliding blocks (1701).

8. An explosion-proof lamp as defined in claim 7, wherein: the upper end of the fixing block (1702) is provided with a threaded hole, the upper cover (5) is provided with a through hole at the position corresponding to the threaded hole, and the upper cover (5) and the fixing block (1702) are fixedly connected with each other through a fastening bolt (20).

9. An explosion-proof lamp as defined in claim 1, wherein: the lower end of the upper cover (5) is detachably connected with a fixing plate (18) through a hexagon socket head cap screw (19), and the annular flange (102) is abutted against the fixing plate (18).