380V maintenance-free explosion-proof lighting lamp

Abstract

The present application relates to the technical field of explosion-proof lighting, in particular to a 380V maintenance-free explosion-proof lighting, comprising a lighting body, the lighting body comprises an explosion-proof inner shell for providing airtight protection and a fixed outer shell for auxiliary support, a cooling device for cleaning the surface of the explosion-proof inner shell and realizing cooling effect is slidably installed in the lighting body, a guide system for limiting the movement track of the cooling device and driving the movement of the cooling device is fixedly installed in the lighting body, an opening and closing device for controlling the start and stop of the cooling device is movably installed in the lighting body, the technical problem that the existing explosion-proof lighting will generate a lot of heat after long time work, which will cause damage to the internal lighting elements and reduce the service life of the explosion-proof lighting, and the dust attached to the explosion-proof lighting will reduce its lighting effect when working in high dust environment is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of explosion-proof lighting, in particular to a 380V maintenance-free explosion-proof lighting. BACKGROUND

[0002] The explosion-proof lighting is a special lamp used to provide lighting in an environment with explosion hazards. In flour processing plants, since flour is a flammable and explosive powder, the use of ordinary lighting equipment will cause a short circuit of the filament or contact between the electric arc and the air dust, thereby causing a fire or explosion. Therefore, in high-dust environments such as flour processing, storage, and transportation, explosion-proof lighting is often used to ensure production safety and the health of workers. However, the existing explosion-proof lighting will inevitably generate a large amount of heat after a long time of use, causing damage to the internal lighting and electrical elements, reducing the service life of the explosion-proof lamp, and requiring regular maintenance. In addition, the dust adhering to the surface of the explosion-proof lighting will also reduce its lighting effect.

[0003] In order to ensure the explosion-proof effect, the explosion-proof lamp generally adopts a sealed and thick-walled shell structure, which causes the explosion-proof lamp to accumulate a large amount of heat after a long time of use, causing damage to the lighting elements or other electrical elements, affecting the use of the explosion-proof lamp, and the sealed and solid structure of the explosion-proof lamp also makes it difficult to disassemble and repair after damage. Therefore, once the internal electrical elements are overheated and damaged, the explosion-proof lamp will be scrapped, and regular maintenance of the explosion-proof lamp is required to extend the life of the internal electrical elements. However, regular maintenance is time-consuming and labor-intensive, greatly reducing the practicality of the explosion-proof lighting in flammable and explosive environments. In order to solve the problem of excess heat generated by the explosion-proof lamp during long-term operation, the existing heat dissipation method generally uses a fan to blow air on the explosion-proof lighting. This not only has low heat dissipation efficiency, but also requires the heat dissipation device to work continuously while the explosion-proof lighting is working, which can cause a large burden on the heat dissipation device under long-term lighting, thereby reducing the heat dissipation effect of the explosion-proof lighting and not protecting the internal electrical elements of the explosion-proof lamp well.

[0004] In view of the above situation, in order to overcome the above technical problems, the present application designs a 380V maintenance-free explosion-proof lighting. SUMMARY

[0005] The present application aims to provide a 380V maintenance-free explosion-proof lighting to solve the technical problem that the existing explosion-proof lighting will generate a large amount of heat after a long time of work, causing damage to the internal lighting elements and reducing the service life of the explosion-proof lighting, and the dust adhering to the explosion-proof lighting in a high-dust environment will reduce its lighting effect.

[0006] In order to achieve the above purpose, the present application provides the following technical solution:

[0007] The application provides a 380V maintenance-free explosion-proof illuminating lamp, which comprises an illuminating lamp body, wherein the illuminating lamp body comprises an explosion-proof inner shell for providing airtight protection and a fixed outer shell for assisting support, a cooling device for cleaning the surface of the explosion-proof inner shell and realizing cooling is slidably arranged in the illuminating lamp body, the cooling device is arranged directly below the explosion-proof inner shell, and when the cooling device works, clean water is rolled and applied on the surface of the explosion-proof inner shell, the temperature of the surface of the explosion-proof inner shell is taken away through evaporation of the water, so that the heat dissipation of the illuminating lamp body is realized, and at the same time, dust and impurities adhered to the surface of the explosion-proof inner shell are removed to achieve the cleaning effect; a guide device for limiting the movement track of the cooling device and driving the cooling device to move is fixedly arranged in the illuminating lamp body, the cooling device is arranged on the guide device, an opening and closing device for controlling the start and stop of the cooling device is movably arranged in the illuminating lamp body, the opening and closing device moves in the explosion-proof inner shell and the fixed outer shell, the opening and closing device controls the start of the cooling device according to the temperature change in the explosion-proof inner shell, and the cleaning and heat dissipation of the cooling device on the explosion-proof inner shell are realized under the pulling and guiding of the guide device.

[0008] Although the existing air cooling mode can take away the excess heat on the surface of the explosion-proof lamp, long-time use can cause overheating of the air cooling device, thereby reducing the heat dissipation efficiency and shortening the service life of the air cooling device, therefore, the application takes away the heat on the surface of the explosion-proof lamp through the water evaporation mode, improves the heat dissipation efficiency, reduces the working intensity of the heat dissipation device, and better guarantees the heat dissipation and illuminating effect of the explosion-proof illuminating lamp under long-time work.

[0009] The explosion-proof lamp has a risk of rupture when suffering from external great impact, once the shell of the explosion-proof lamp is ruptured, the internal electric arc will be in contact with the external flammable and explosive environment, causing secondary damage to the safety of life and property; therefore, the explosion-proof inner shell includes an explosion-proof liner fixedly installed inside the lighting lamp body, the explosion-proof liner is used for providing first layer explosion-proof protection for the internal lighting element, avoiding the invasion of fine dust into contact with the electrified lighting element, an oil storage cavity and a disc-shaped oil pressure cavity are arranged in the explosion-proof liner for storing insulating oil, and the oil storage cavity and the oil pressure cavity are in communication, so that when the insulating oil in the oil storage cavity is heated and expanded to enter the oil pressure cavity, the opening and closing device is lifted, a cylindrical heat sink is fixedly installed outside the explosion-proof liner for providing second layer explosion-proof protection, so as to resist the influence of external forces such as vibration and impact on the explosion-proof liner, thereby improving the stability and reliability of the device, and grooves are arranged on the surfaces of the explosion-proof liner and the heat sink to help heat dissipation, and the explosion-proof liner is provided with lighting elements for providing stable light source; the double protection of the explosion-proof liner and the heat sink on the explosion-proof lamp body makes it have better impact resistance, and can better avoid the damage of the explosion-proof lamp shell in the event of earthquake, fire and other accidents, and prevent the occurrence of secondary explosion.

[0010] In addition, the explosion-proof liner adopts a hollow trapezoidal cylindrical structure, so it can better withstand axial and transverse impact forces, and a gap is left between the cylindrical heat sink and the explosion-proof liner to reduce the conduction of impact forces between the two and avoid damage to the internal lighting elements.

[0011] The oil storage cavity is annularly arranged around the lighting element in the explosion-proof liner, the height of the oil storage cavity is consistent with the height of the lighting element, and the gap diameter between the connecting part of the oil storage cavity and the oil pressure cavity is one tenth of the gap diameter of the oil storage cavity, so that when the insulating oil expands due to heating and passes through the connecting part, a greater pressure is generated, so that when the insulating oil is transported to the oil pressure cavity, it can provide greater lifting force for the opening and closing device.

[0012] When the shell of the explosion-proof lamp is ruptured, the internal electrical elements are directly exposed to the environment, therefore, by annularly arranging the oil storage cavity in the explosion-proof liner, when the explosion-proof liner is ruptured by impact, the insulating liquid stored in the oil storage cavity enters the explosion-proof liner along the cracks, immerses the lighting element in the insulating liquid, avoids the direct contact of the electric arc with air, thereby preventing explosion or combustion; at the same time, the disc-shaped oil pressure cavity can make the insulating oil expanded by heating push the opening and closing device under the driving of the pressure generated by the narrow gap, thereby realizing the start and stop of the temperature control cooling device according to the temperature inside the lighting lamp body.

[0013] The fixed shell includes a rectangular shell for wrapping the explosion-proof liner, the upper surface of the shell is provided with a water inlet for communicating with the external water pipe, the inner wall of the water inlet is provided with a thread for increasing the friction, the shell is also provided with a water collecting tank communicating with the water inlet for conveying clean water into the cooling device, the upper surface of the fixed shell is also provided with a handle for conveniently carrying the illuminating lamp body and a receiving groove matched with the handle, the both sides of the shell are provided with a set of double-layer heat dissipation elements for blowing air to the surface of the explosion-proof liner to accelerate the evaporation of moisture and improve the heat dissipation efficiency of the cooling device, and the lower surface of the shell is provided with an illuminating through hole for allowing light to pass through.

[0014] The heat dissipation element includes a protective layer and an inner fan, the fan can accelerate the evaporation of the moisture applied on the surface of the explosion-proof liner, and the protective layer can ensure the stability of the fan heat dissipation element movement, the explosion-proof lamp is difficult to carry due to its large size and weight, therefore, the handle and the receiving groove matched therewith are arranged to improve the portability of the explosion-proof lamp body, in addition, the water inlet provided with the thread is convenient for connecting with the external water pipe to ensure the sufficiency of the clean water for cooling.

[0015] In a high dust environment, in addition to the influence of high temperature on the illuminating lamp, the adhesion of dust can also reduce the lighting effect of the explosion-proof lamp, if the blowing method is used to cool the explosion-proof lamp, the impurities adhered to the surface of the explosion-proof lamp cannot be removed well, and the dust deposited in the environment is also easy to be blown away, which pollutes the site environment and causes explosion risk; therefore, the cooling device includes a transfusion hose connected with the fixed shell, the transfusion hose is used to convey the clean water in the fixed shell when the cooling device moves, one end of the transfusion hose is fixedly connected in the fixed shell and communicates with the water collecting tank, the other end of the transfusion hose is fixedly connected with a supporting roller, a plurality of through holes for discharging clean water are linearly arranged on the surface of the supporting roller, a sponge roller is rotatably installed on the supporting roller and covers the through holes arranged on the surface of the supporting roller, the sponge roller can freely rotate around the supporting roller and realize the cleaning effect on the lower surface of the explosion-proof liner by extrusion and friction under the driving of the supporting roller, a transfusion channel communicating with the transfusion hose is arranged in the supporting roller, the transfusion channel discharges the clean water through the through holes arranged on the surface of the supporting roller, so that the sponge roller absorbs enough water to realize the cleaning effect; the cooling device in the application realizes the cleaning effect while applying clean water on the surface of the explosion-proof liner by using the rolling and applying mode of the sponge roller, and the whole conveying system is arranged in the device and does not contact with the dust in the external environment, so as to avoid the pollution of the site environment.

[0016] The guiding system comprises a guide rail fixedly installed in the illuminating lamp body for limiting the movement track of the cooling device, a power sliding block slidingly installed in the guide rail, a connecting block fixedly installed at one end of the power sliding block, an installation hole matching the infusion hose being formed in the connecting block, the connecting block being fixedly connected with the supporting roller, the infusion hose being communicated with the infusion channel in the supporting roller through the connecting block, the connecting block being driven to slide along the guide rail through the power sliding block, so that the cooling device fixedly connected with the connecting block is driven to slide in the illuminating lamp body, and the sponge roller is extruded and rolled on the lower surface of the explosion-proof liner to clean and cool the explosion-proof liner, thereby achieving the maintenance-free purpose.

[0017] The T-shaped sliding groove penetrating through both ends is formed in the guide rail, a T-shaped connecting block consistent with the contour is slidingly installed in the guide rail, and the T-shaped connecting block is fixedly connected with the fixed roller, so that the stability of the movement of the guiding device when dragging the cooling device is ensured, and thus the sponge roller can uniformly apply clean water on the surface of the explosion-proof liner to achieve the high-efficiency heat dissipation effect.

[0018] The power sliding block comprises a rectangular sealing block slidingly installed in the guide rail for protecting the power motor, so that the power motor is prevented from contacting the moisture in the cooling device, thereby ensuring the normal work of the stepping motor, an installation groove is formed in the rectangular sealing block, a group of power motors with symmetrical output ends are fixedly installed in the installation groove, a group of pulleys are fixedly connected to the output shafts on both sides of the power motor, the pulleys are slidingly installed in the guide rail, and the power motor is used to drive the pulleys to rotate, so as to realize the stable sliding of the power sliding block in the guide rail.

[0019] The thickness of the rectangular sealing block is 2 / 3 of the height of the upper end part of the sliding groove formed in the guide rail, the width of the rectangular sealing block is 2 / 3 of the width of the upper end part of the sliding groove formed in the guide rail, the diameter of the pulley is the same as the height of the upper end part of the sliding groove formed in the guide rail, and the thickness of the pulley is 1 / 6 of the width of the upper end part of the sliding groove formed in the guide rail, so that the total height and the total width of the power sliding block are completely consistent with the total height and the total width of the sliding groove, the stable sliding of the pulley in the guide rail is ensured, the movement track of the power sliding block is limited, and the power loss caused by the friction between the power sliding block and the inner wall of the guide rail is avoided.

[0020] The existing cooling device and lighting element are generally started and stopped at the same time to ensure that the excess heat generated by the explosion-proof lamp during operation can be removed, however, long time operation will reduce the service life of the cooling device, and according to different environmental temperatures, the temperature rising rate of the explosion-proof lamp is different, and the ineffective cooling operation will only cause the waste of power; the opening and closing device comprises an arc-shaped sealing plate movably installed in the explosion-proof inner container, the arc-shaped sealing plate is used for preventing the insulating oil stored in the explosion-proof inner container from flowing into the oil pressure chamber due to thermal expansion, and a group of rectangular opening and closing blocks are fixedly installed on the arc-shaped sealing plate.

[0021] The arc-shaped sealing plate lifts the rectangular opening and closing blocks upward under the expansion action of the filled insulating oil, the rectangular opening and closing blocks are provided with through holes allowing the clean water to flow, so that when the arc-shaped sealing plate drives the rectangular opening and closing blocks to lift, the clean water in the water collecting groove can flow normally, and when the rectangular opening and closing blocks sink, the water collecting groove is blocked by the non-through hole position of the rectangular opening and closing blocks, so that the flow of clean water in the water collecting groove is prevented, the upper end of the limiting groove corresponding to the rectangular opening and closing blocks is fixedly installed on the upper surface of the fixed shell, and a pressure sensor for transmitting a signal to the cooling device is fixedly installed in the limiting groove, since the pressure sensor is a rectangular trigger type pressure sensor, when the rectangular opening and closing blocks are lifted by the arc-shaped sealing plate and slide in the limiting groove, the pressure sensor is extruded, and at this time, the pressure sensor sends a starting signal to the guide system.

[0022] Therefore, the opening and closing device is controlled by the actual temperature of the lighting lamp body and performs start-stop operation on the cooling device, so that the invalid working time of the cooling device is effectively reduced, the long time use of the cooling device is avoided, and the service life of the guide device and the cooling device is prolonged.

[0023] The beneficial effects of the present application are as follows:

[0024] 1. A 380V maintenance-free explosion-proof lighting lamp, the guide system drives the cooling device to wet the surface of the explosion-proof shell, and the heat dissipation element on the fixed shell blows air at high speed to the surface of the explosion-proof shell, accelerates the evaporation of moisture and removes the excess heat on the explosion-proof inner container, so as to realize the cooling effect of the lighting lamp body, and the sponge roller rotates freely on the supporting roller and cleans the lower surface of the explosion-proof inner container by extrusion to remove the adhered dust and impurities to avoid the decline of the lighting effect of the lighting lamp body working in a high dust environment.

[0025] 2. The utility model provides a 380V maintenance-free explosion-proof lighting lamp, through the insulation oil stored in the oil storage cavity is heated and expands to push the opening and closing device to lift, thereby triggering the pressure sensor installed in the limiting groove and delivering the starting signal to the power motor, so that the power slide pulls the cooling device to slide along the guide slide rail, realizes the cooling effect of the explosion-proof inner shell, and the starting and closing of the cooling device can be controlled according to the actual temperature of the lighting element, avoids the continuous work of the cooling device, reduces the working burden of the cooling device, thereby prolongs the service life of the whole explosion-proof lighting lamp.

[0026] 3. The utility model provides a 380V maintenance-free explosion-proof lighting lamp, through filling the insulation oil in the oil storage cavity, the lighting element can be assisted cooling when realizing the control of the opening and closing device, when the explosion-proof inner bag is damaged, the lighting element is soaked in the insulation oil, thereby eliminating the contact of electric arc and high dust environment, avoids the occurrence of fire or explosion. DRAWINGS

[0027] Figure 1 It is the overall schematic diagram of the utility model;

[0028] Figure 2 It is the lighting lamp body sectional view of the utility model;

[0029] Figure 3 It is the explosion-proof inner shell sectional view of the utility model;

[0030] Figure 4 It is Figure 3 The enlarged view of A point position in the middle;

[0031] Figure 5 It is the fixed shell schematic diagram of the utility model;

[0032] Figure 6 It is the fixed shell sectional view of the utility model;

[0033] Figure 7 It is the cooling device schematic diagram of the utility model;

[0034] Figure 8 It is the cooling device sectional view of the utility model;

[0035] Figure 9 It is the guide system schematic diagram of the utility model;

[0036] Figure 10 It is the power slide schematic diagram of the utility model;

[0037] Figure 11 It is the opening and closing device schematic diagram of the utility model.

[0038] As shown in the figure: 1, the lighting lamp body; 11, the explosion-proof inner shell; 111, the explosion-proof inner shell; 112, the oil storage cavity; 113, the oil pressure cavity; 114, the heat sink; 115, the lighting element; 12, the fixed shell; 121, the shell; 122, the water inlet; 123, the water collecting groove; 124, the handle; 125, the storage groove; 126, the heat dissipation element; 127, the lighting through hole; 2, the cooling device; 21, the infusion hose; 22, the support roller; 23, the sponge roller; 24, the infusion channel; 3, the guide system; 31, the guide slide rail; 32, the power slide block; 321, the rectangular sealing block; 322, the mounting groove; 323, the power motor; 324, the pulley; 33, the connecting block; 4, the opening and closing device; 41, the arc-shaped sealing plate; 42, the rectangular opening and closing block; 43, the limiting groove; 44, the pressure sensor. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0040] As Figure 1 shown, a 380V maintenance-free explosion-proof lighting lamp includes a lighting lamp body 1, the lighting lamp body 1 includes an explosion-proof inner shell 11 for providing airtight protection and a fixed shell 12 for auxiliary support, a cooling device 2 for cleaning the surface of the explosion-proof inner shell 11 and realizing cooling effect is slidably installed in the fixed shell 12, and the cooling device 2 is installed directly below the explosion-proof inner shell 11, a guide system 3 for limiting the movement track of the cooling device 2 and driving the cooling device 2 to move is fixedly installed in the lighting lamp body 1, and the cooling device 2 is installed on the guide system 3, an opening and closing device 4 for controlling the start and stop of the cooling device 2 is movably installed in the lighting lamp body 1, and the opening and closing device 4 moves in the explosion-proof inner shell 11 and the fixed shell 12.

[0041] When the cooling device 2 works, clean water is rolled and applied to the lower surface of the explosion-proof inner shell 11, and the temperature of the surface of the explosion-proof inner shell 11 is taken away by evaporation of water, so that the heat dissipation of the lighting lamp body 1 is realized, and at the same time, the dust and impurities adhered to the surface of the explosion-proof inner shell 11 are removed to achieve the cleaning effect, the opening and closing device 4 controls the start of the cooling device 2 according to the temperature change in the explosion-proof inner shell 11, and the cleaning and heat dissipation of the cooling device 2 to the explosion-proof inner shell 11 are realized under the pulling and guiding action of the guide system 3.

[0042] A large amount of heat is required to convert water into a gaseous state during the evaporation process, and the heat dissipation by blowing relies mainly on the flow of air to carry away heat, without the evaporation cooling effect. Therefore, under the same energy input, the heat absorption through the surface water evaporation can achieve better heat dissipation effect.

[0043] As shown in Figure 2 The explosion-proof inner shell 11 includes an explosion-proof liner 111 fixedly installed inside the lighting lamp body 1, which is used to provide the first layer of explosion-proof protection for the internal lighting element 115, to avoid the invasion of fine dust into contact with the electrified lighting element 115, and the explosion-proof liner 111 adopts a hollow trapezoidal cylindrical structure, so that when the shock wave propagates to the surface of the structure, the curved shape of its surface has a certain elasticity, so it can absorb part of the impact energy, thereby reducing the impact damage to the internal components, achieving better impact resistance, and the explosion-proof liner 111 is provided with an oil storage cavity 112 for storing insulating oil and an oil pressure cavity 113 for installing the opening and closing device 4, and the oil storage cavity 112 and the oil pressure cavity 113 are in communication, so that when the insulating oil in the oil storage cavity 112 is heated and expanded to enter the oil pressure cavity 113, it will lift the opening and closing device 4, and the explosion-proof liner 111 is fixedly installed with a heat sink 114 for providing a second layer of explosion-proof protection, and the heat sink 114 adopts a cylindrical structure, so it has better structural rigidity, and compared with the rectangular structure, it can better maintain the shape and stability when impacted, thereby resisting the influence of external forces such as vibration and impact on the explosion-proof liner 111, thereby improving the stability and reliability of the device, and the cylindrical heat sink 114 can provide a larger heat dissipation surface area, increase heat radiation and convection heat dissipation, and the heat dissipation grooves on the surface of the explosion-proof liner 111 and the heat sink 114 help to effectively reduce the temperature inside the explosion-proof liner;

[0044] Under normal conditions, the insulating liquid is filled in the oil storage cavity 112 around the lighting element 115 to dissipate heat from the lighting element 115, and when the lighting lamp body 1 is impacted by external forces, the heat sink 114 will bear most of the impact force, and when the impact force is too large to cause the explosion-proof liner 111 to break, the insulating oil will enter the inside along the crack and immerse the lighting element 115, thereby blocking the contact between the electrified lighting element 115 and the high-dust environment outside;

[0045] Compared with the existing explosion-proof lighting lamp, by opening the oil storage cavity 112 in the explosion-proof inner shell 111 and filling the insulating liquid, not only the lighting lamp body 1 can be cooled and radiated when it works normally, but also the contact between the electric arc generated by the lighting element 115 and the high dust environment is effectively blocked when the explosion-proof inner shell 111 is broken due to the impact from the outside, thereby avoiding the occurrence of fire or explosion and other dangerous situations.

[0046] As shown in Figure 3 and Figure 4 , the oil storage cavity 112 is annularly opened in the explosion-proof inner shell 111 around the lighting element 115, and the height of the oil storage cavity 112 is consistent with the height of the lighting element 115, so that the lighting element 115 can be immersed in the insulating oil when the shell 121 is broken, avoiding the contact between the electric arc in the lighting element 115 and the dust in the surrounding environment to achieve the explosion-proof effect, and the gap diameter between the connection part of the oil storage cavity 112 and the oil pressure cavity 113 is one tenth of the gap diameter of the oil storage cavity 112, so that when the insulating oil expands due to heating and passes through the connection, a greater pressure is generated, so that it can provide greater lifting force for the opening and closing device 4 when it is transported to the oil pressure cavity 113;

[0047] When the lighting element 115 is overheated due to long-term use, the insulating oil filled in the oil storage cavity 112 will expand due to heating and rise along the connection part into the oil pressure cavity 113, providing upward lifting force for the opening and closing device 4 to lift the rectangular opening and closing block 42 into the water collecting groove 123 opened in the fixed outer shell 12 to realize the flow of clean water. After being cooled by the cooling device 2, the temperature of the lighting element 115 decreases, and the insulating oil in the oil storage cavity 112 returns to the initial plane, so that the opening and closing device 4 reseals the water collecting groove 123 until the lighting element 115 is overheated again.

[0048] Compared with the existing cooling method, the opening of the cooling device 2 is controlled by the expansion of the insulating oil, which realizes the start or stop of the cooling device 2 according to the actual temperature of the lighting element 115, avoids the continuous work of the cooling device 2 when the lighting element 115 works, reduces the working burden of the cooling device 2, and prolongs the service life of the entire explosion-proof lighting lamp.

[0049] As shown in Figure 5 and Figure 6As shown, the fixed shell 12 includes a rectangular shell 121 for wrapping the explosion-proof liner 111, the shell 121 upper surface is provided with a water inlet 122 for communicating with the external water pipe, the water inlet 122 inner wall is provided with a thread line to increase the friction, the shell 121 is also provided with a water collecting tank 123 communicating with the water inlet 122 for conveying clean water into the cooling device 2, the fixed shell 12 upper surface is also provided with a handle 124 for carrying the illuminating lamp body 1 and a receiving groove 125 matching the handle 124, the shell 121 two sides are provided with a group of heat dissipation elements 126 for blowing the surface of the explosion-proof liner 111 to accelerate water evaporation and improve the heat dissipation efficiency of the cooling device 2, the heat dissipation elements 126 adopt a double-layer structure with a protective shell to prevent external objects or accidental contact from touching the rotating fan blades, reduce the potential risk to the equipment, and the fan with the protective shell can ensure that the heat dissipation effect is concentrated on the surface of the explosion-proof liner by guiding the airflow of the fan to a specific area, so that the internal temperature can be more accurately controlled, and the shell 121 lower surface is provided with a circular illumination through-hole 127 for allowing light to pass through;

[0050] The external water pipe is connected with the fixed shell 12 along the thread line direction of the water inlet 122 inner wall, clean water is input into the water collecting tank 123, and the clean water is sent into the infusion hose 21 after the opening and closing device 4 is opened, and the heat dissipation elements 126 provided on the fixed shell 12 assist blowing when the cooling device 2 works;

[0051] The fixed shell 12 can reduce the impact of the external environment on the illuminating lamp body 1 to ensure the stability of the explosion-proof illuminating lamp during work, and the surface of the explosion-proof liner 11 is blown to accelerate water evaporation to assist the cooling device 2 to cool and dissipate heat of the explosion-proof liner 111, accelerate the process of taking away the excess heat of the explosion-proof liner 111, reduce the overheating time of the internal illuminating element 115 to prolong its service life, and achieve the purpose of maintenance-free.

[0052] As Figure 7 And Figure 8As shown, the cooling device 2 comprises a liquid delivery hose 21 connected with the fixed shell 12, which is used to deliver the clean water in the fixed shell 12 when the cooling device 2 moves, one end of the liquid delivery hose 21 is fixedly connected in the fixed shell 12 and communicates with the water collecting groove 123, the other end of the liquid delivery hose 21 is fixedly connected with a supporting roller 22, and a plurality of through holes for discharging clean water are linearly arranged on the surface of the supporting roller 22, a sponge roller 23 is rotatably installed on the supporting roller 22, the sponge roller 23 covers the through holes arranged on the surface of the supporting roller 22, the sponge roller 23 can freely rotate around the supporting roller 22 and realize the cleaning effect on the lower surface of the explosion-proof liner 111 by extrusion and friction under the driving of the supporting roller 22, a liquid delivery channel 24 is arranged in the supporting roller 22 and matches the liquid delivery hose 21, the liquid delivery channel 24 discharges clean water through the through holes arranged on the surface of the supporting roller 22, so that the sponge roller 23 absorbs enough water to realize the cleaning effect;

[0053] When the opening and closing device 4 is lifted, the clean water in the water collecting groove 123 enters the liquid delivery channel 24 arranged in the supporting roller 22 through the liquid delivery hose 21, and is absorbed by the sponge roller 23 through the through holes linearly arranged on the surface of the supporting roller 22, the sponge roller 23 is extruded by the lower surface of the explosion-proof liner 111 under the driving of the guide system 3 and rotates around the supporting roller 22, which wets and cleans the lower surface of the explosion-proof liner 111, and scrapes off the adhered dust and other impurities;

[0054] Compared with the existing heat dissipation mode of the explosion-proof lighting lamp, the sponge roller 23 wets the lower surface of the explosion-proof liner 111 and removes heat through water evaporation, which can realize more efficient heat dissipation effect, and at the same time, the sponge roller 23 is extruded and rolled, which can also clean the surface of the explosion-proof liner 111, thereby avoiding the problem that the adhered dust in the explosion-proof lighting lamp working in a high dust environment accumulates too much to reduce the lighting effect, and the purpose of maintenance-free is achieved without special additional cleaning.

[0055] As Figure 9As shown, the guide system 3 includes a guide rail 31 fixedly installed in the light body 1 for limiting the movement trajectory of the cooling device 2, a power sliding block 32 is slidingly installed in the guide rail 31, one end of the power sliding block 32 is fixedly installed with a connecting block 33, and the connecting block 33 is provided with a mounting hole matched with the infusion hose 21, the connecting block 33 is fixedly connected with the support roller 22, the infusion hose 21 is communicated with the infusion channel 24 in the support roller 22 through the connecting block 33, and the connecting block 33 is driven to slide along the guide rail 31 by the power sliding block 32, so that the cooling device 2 fixedly connected with the connecting block 33 slides in the light body 1, the sponge roller 23 is extruded and rolled on the lower surface of the explosion-proof inner container 111 to clean and cool the explosion-proof inner container 111, and the purpose of maintenance-free is achieved. The connecting block 33 adopts a T-shaped structure, so that the transverse beam at the upper end of the T-shaped structure can provide greater bending strength and bending resistance, effectively reducing the deflection and deformation of the connecting block 33 during work, and the T-shaped connecting block 33 increases the contact area between the T-shaped sliding groove in the guide rail 31, thereby increasing the transmission area of the supporting force to more evenly distribute the load, so that the connecting block 33 has better supporting performance.

[0056] The guide rail 31 is fixedly installed on both sides of the explosion-proof inner shell 11, when the power sliding block 32 is driven by the starting signal transmitted by the pressure sensor 44, the connecting block 33 is driven to slide in the guide rail 31, and the connecting block 33 is fixedly connected with the support roller 22, so that when the power sliding block 32 slides, the cooling device 2 also slides in the light body 1. By arranging the guide system 3, the cooling device 2 can move along a specified trajectory, so that the surface of the explosion-proof inner container 111 can be efficiently and sufficiently cleaned and cooled.

[0057] As shown in Figure 10 The power sliding block 32 includes a rectangular sealing block 321 slidingly installed in the guide rail 31 for protecting the power motor 323, so as to avoid the power motor 323 from contacting the moisture in the cooling device 2, thereby ensuring the normal work of the stepping motor, the rectangular sealing block 321 is provided with an installation groove 322, a group of power motors 323 with symmetrical output ends are fixedly installed in the installation groove 322, a group of pulleys 324 are fixedly connected on the output shafts on both sides of the power motor 323, and the pulleys 324 are slidingly installed in the guide rail 31, the power motor 323 is used to drive the pulleys 324 to rotate, so as to realize the stable sliding of the power sliding block 32 in the guide rail 31;

[0058] The thickness of the rectangular sealing block 321 is 2 / 3 of the height of the upper end part of the sliding groove in the guide sliding rail 31, and the width of the rectangular sealing block 321 is 2 / 3 of the width of the upper end part of the sliding groove in the guide sliding rail 31. The diameter of the pulley 324 is the same as the height of the upper end part of the sliding groove in the guide sliding rail 31, and the thickness of the pulley 324 is 1 / 6 of the width of the upper end part of the sliding groove in the guide sliding rail 31, so that the pulley 324 slides against the inner wall of the sliding groove, and the movement track of the pulley 324 is closer to a straight line, reducing the deviation and error in the sliding process, thereby ensuring that the power transmission is more accurate and stable, and reducing the vibration and deformation of the pulley 324 when bearing load or moving, effectively improving the force transmission efficiency.

[0059] As shown in Figure 11 The opening and closing device 4 includes an arc-shaped sealing plate 41 movably installed in the explosion-proof inner container 111. The arc-shaped sealing plate 41 is used to prevent the insulating oil stored in the explosion-proof inner container 111 from overflowing into the oil pressure cavity 113 due to thermal expansion, and the pressure is too large. A set of rectangular opening and closing blocks 42 are fixedly installed on the arc-shaped sealing plate 41. The arc-shaped sealing plate 41 is lifted upward under the expansion of the filled insulating oil, and the rectangular opening and closing blocks 42 are provided with through holes for the flow of clean water. Therefore, when the arc-shaped sealing plate 41 lifts the rectangular opening and closing blocks 42, the clean water in the water collecting groove 123 can flow normally, and when the rectangular opening and closing blocks 42 sink, the water collecting groove 123 is blocked by the non-through hole position of the rectangular opening and closing blocks 42, thereby preventing the flow of clean water in the water collecting groove 123. A limiting groove 43 corresponding to the rectangular opening and closing block 42 is formed in the upper surface of the fixed outer shell 12. A pressure sensor 44 for transmitting signals to the cooling device 2 is fixedly installed at the upper end of the limiting groove 43. When the rectangular opening and closing block 42 is lifted by the arc-shaped sealing plate 41 and slides in the limiting groove 43, it will extrude the pressure sensor 44. At this time, the pressure sensor 44 sends a start signal to the guide system 3.

[0060] After the insulating oil in the oil storage cavity 112 is heated and expanded, the pressure increases through the connection between the oil storage cavity 112 and the oil pressure cavity 113, and the arc-shaped sealing plate 41 is lifted until the rectangular opening and closing block 42 triggers the pressure sensor 44 when entering the oil pressure cavity 113, thereby starting the guide system 3 to pull the cooling device 2 to perform cooling operation.

[0061] The guiding system 3 is started by the rectangular opening and closing block 42 and the trigger of the rectangular trigger type pressure sensor 44, which can reduce the working time and energy loss of the cooling device 2, increase the effective working capacity and service life of the cooling device 2, and realize automatic adjustment of the working time and working frequency according to the external temperature and the actual temperature of the lighting element 115, so as to achieve the design purpose of maintenance-free.

[0062] In the working process of the present application, when the temperature of the lighting element 115 rises, the insulating oil stored in the oil storage cavity 112 will expand under heat, so as to enter the oil pressure cavity 113 from the oil storage cavity 112 and push the arc-shaped sealing plate 41 to rise, and the rectangular opening and closing block 42 also moves upward until it presses the pressure sensor 44. At this time, the channel opened on the rectangular opening and closing block 42 makes the water collecting groove 123 in the fixed shell 12 in a flow-through state, and the water pipe connected to the water inlet 122 delivers clean water through the water collecting groove 123 and the infusion hose 21 into the infusion channel 24 opened in the support roller 22, and through the through hole opened on the surface of the support roller 22, the sponge roller 23 absorbs enough water. The pressure sensor 44 sends a starting signal to the power motor 323, so as to drive the pulley 324 to rotate, so that the power sliding block 32 slides in the guide rail 31, and the connecting block 33 fixedly connected with the power sliding block 32 is dragged to move. Because the connecting block 33 is fixedly connected with the cooling device 2, the support roller 22 is also driven and slides in the lighting lamp body 1 at the same time. The sponge roller 23 is wetted on the surface of the explosion-proof inner shell 11 and rotates around the fixed roller to clean the lower surface of the explosion-proof inner shell 111 and remove the attached dust. The heat dissipation element 126 installed on the fixed shell 12 accelerates the evaporation of water on the surface of the explosion-proof inner shell 111 by blowing, so as to take away the excess heat of the lighting lamp body 1, realize the cooling effect of the lighting lamp body 1, prolong the service life of the explosion-proof lighting lamp, and achieve the purpose of maintenance-free.

[0063] The above embodiments are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made according to the spirit and essence of the present application should be covered within the protection scope of the present application.

Claims

1. A 380V maintenance-free explosion-proof lighting lamp comprising a lighting lamp body (1), the lighting lamp body (1) comprising an explosion-proof inner shell (11) providing airtight protection and a fixed outer shell (12) for auxiliary support; characterized in that, The cooling device (2) is slidably installed in the lighting lamp body (1), and the cooling device (2) applies clean water to the surface of the explosion-proof inner shell (11) during operation; the guiding system (3) is fixedly installed in the lighting lamp body (1); the opening and closing device (4) is movably installed in the lighting lamp body (1), and the opening and closing device (4) controls the starting of the cooling device (2) according to the temperature change in the explosion-proof inner shell (11), and realizes the cleaning and heat dissipation of the cooling device (2) to the explosion-proof inner shell (11) under the pulling and guiding action of the guiding system (3); The explosion-proof inner shell (11) includes an explosion-proof inner container (111) fixedly installed in the lighting lamp body (1), the explosion-proof inner container (111) is a hollow trapezoidal cylindrical structure, an annular oil storage cavity (112) and a disc-shaped oil pressure cavity (113) are arranged in the explosion-proof inner container (111), the oil storage cavity (112) is in communication with the oil pressure cavity (113), and a lighting element (115) for providing stable light source is arranged in the explosion-proof inner container (111); the annular oil storage cavity (112) is arranged in the explosion-proof inner container (111) around the lighting element (115). The fixed shell (12) includes a shell body (121), the shell body (121) is a hollow rectangular structure, a circular water inlet (122) is arranged on the upper surface of the shell body (121), and a rectangular water collecting groove (123) in communication with the water inlet (122) is further arranged in the shell body (121). The cooling device (2) includes a liquid delivery hose (21) connected with the fixed shell (12), the liquid delivery hose (21) is used for delivering clean water in the fixed shell (12) when the cooling device (2) moves, one end of the liquid delivery hose (21) is fixedly connected in the fixed shell (12), the other end of the liquid delivery hose (21) is fixedly connected with a supporting roller (22), a plurality of circular through holes are linearly arranged on the surface of the supporting roller (22), a sponge roller (23) is rotatably installed on the supporting roller (22), and a liquid delivery channel (24) matched with the liquid delivery hose (21) is arranged in the supporting roller (22). The opening and closing device (4) includes an arc-shaped sealing plate (41) movably installed in the explosion-proof inner container (111), a group of rectangular opening and closing blocks (42) are fixedly installed on the arc-shaped sealing plate (41), circular through holes are arranged on the surface of the rectangular opening and closing blocks (42), a hollow rectangular limiting groove (43) is arranged on the upper surface of the fixed shell (12), the height of the limiting groove (43) is consistent with the height of the rectangular opening and closing blocks (42), the profile of the limiting groove (43) is consistent with the profile of the rectangular opening and closing blocks (42), and a rectangular trigger type pressure sensor (44) is fixedly installed on the top of the limiting groove (43).

2. A 380V maintenance-free explosion-proof lighting lamp according to claim 1, characterized in that: The explosion-proof inner container (111) is fixedly installed with a cylindrical heat dissipation cover (114), and the explosion-proof inner container (111) and the heat dissipation cover (114) are both provided with rectangular grooves for heat dissipation.

3. A 380V maintenance-free explosion-proof lighting lamp according to claim 2, characterized in that: The connecting part gap diameter of the oil storage cavity (112) and the oil pressure cavity (113) is one tenth of the gap diameter of the oil storage cavity (112).

4. A 380V maintenance-free explosion-proof lighting lamp according to claim 3, characterized in that: The inner wall of the water injection port (122) is provided with a thread line, the upper surface of the fixed shell (12) is further provided with a rectangular handle (124) and a square receiving groove (125) matching the outline shape of the handle (124), and the both sides of the shell (121) are provided with a group of double-layer circular heat dissipation elements (126), and the lower surface of the shell (121) is provided with a circular illumination through hole (127) at the center.

5. The 380V maintenance-free explosion-proof lighting lamp according to claim 1, characterized in that: The guiding system (3) comprises a group of left-right symmetrical guide rails (31) installed in the illuminating lamp body (1), and a T-shaped sliding groove is formed in the guide rail (31) and penetrates both ends, and a rectangular baffle is arranged at both ends of the sliding groove, a power sliding block (32) driven by a motor is slidably installed in the guide rail (31), a T-shaped connecting block (33) is fixedly installed at one end of the power sliding block (32), the connecting block (33) is fixedly connected with the cooling device (2), and the connecting block (33) is also slidably installed in the guide rail (31).

6. A 380V maintenance-free explosion-proof lighting lamp according to claim 5, characterized in that: The power sliding block (32) comprises a rectangular sealing block (321) fixedly connected with the connecting block (33), the thickness of the rectangular sealing block (321) is 2 / 3 of the height of the upper end part of the sliding groove formed in the guide rail (31), the width of the rectangular sealing block (321) is 2 / 3 of the width of the upper end part of the sliding groove formed in the guide rail (31), an installation groove (322) is formed in the rectangular sealing block (321), a power motor (323) is fixedly installed in the installation groove (322), a group of pulleys (324) are fixedly connected with both sides of the output shaft of the power motor (323), the diameter of the pulley (324) is the same as the height of the upper end part of the sliding groove formed in the guide rail (31), the thickness of the pulley (324) is 1 / 6 of the width of the upper end part of the sliding groove formed in the guide rail (31), and the pulley (324) is slidably installed in the guide rail (31).

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