A luminaire for metal mineral mining

Abstract

The present application relates to the field of energy-saving lamps, in particular to a lamp for metal mineral mining. The lamp comprises a lamp holder, a heat sink fixed to the lower end of the lamp holder, a light source below the heat sink, a dust cover outside the heat sink, a reflector cover at the lower end of the light source, and a light-transmitting disc connected to the end of the reflector cover away from the light source. The upper end of the lamp holder is connected to a supporting plate, the side wall is provided with an infrared sensor, and the lower end of the supporting plate is provided with two groups of light control components connected to the reflector cover. The light control component comprises an integrated cover, the lower end of which is provided with a light control plate that can slide, the plate is provided with a square light guide hole, a dust concentration sensor and a grid component, the grid component is composed of a plurality of light-shielding grids rotating at equal intervals in the light guide hole and positioning plates on both sides of the light control plate, and the light control component drives the light control plate to move through the positioning plates. A cooling mechanism is provided on the integrated cover, comprising two fans that can be flipped when the light control plate moves, and can assist the light source with full power output in heat dissipation after being flipped. The device can actively adjust the brightness of the light source while efficiently cooling the light source, thereby prolonging the service life of the lamp.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of energy-saving lamps, in particular to a lamp for metal mineral mining. BACKGROUND

[0002] In metal mineral mining operations, the underground environment is complex, with poor lighting conditions, high dust concentration, narrow space and other problems, which puts high demands on the performance of mining lamps. Most traditional mining lamps use fixed lighting modes and cannot automatically adjust the brightness according to the position of the workers, which can easily cause direct light to the eyes, causing visual fatigue to the workers and affecting the safety and efficiency of the operation. Moreover, the light spots of traditional lamps are mostly circular, which do not match the rectangular cross-section of the roadway, resulting in waste of light energy. At the same time, dust in the underground environment can scatter light, reducing the lighting intensity, and the heat dissipation performance of traditional lamps is limited, so the light source can easily overheat during long-time high-power operation, affecting normal operation and even shortening the service life of the lamp.

[0003] In the prior art, the patent document with publication number CN102889562B discloses a lamp light intensity shifting structure and an adjustable light mining lamp, which can adjust the intensity of the mining lamp, but uses a manual operation mode and cannot dynamically adjust the brightness according to the real-time position of the workers. When the workers move in the roadway, the brightness of the lamp cannot be adjusted in time, which can easily cause direct light to the eyes, leading to visual fatigue of the workers and affecting the safety of the operation. At the same time, the lamp does not have a active heat dissipation component and only relies on passive heat dissipation, so the light source can easily overheat due to the lack of timely heat dissipation during long-time high-power operation, affecting the service life and stability of the lamp.

[0004] The patent document with publication number CN105674110B discloses a LED mining lamp that can actively adjust the intensity of the light source according to whether the workers are present, but the device does not optimize the lighting angle in combination with dust concentration monitoring due to the special environment of the mining industry. In the high-dust underground environment, light can be scattered by dust, resulting in a significant decrease in lighting intensity and failing to ensure clear lighting of the operation surface. In addition, the heat dissipation structure of the lamp has limited heat dissipation efficiency and cannot meet the demand for long-time stable operation of the lamp in metal mineral mining operations.

[0005] Therefore, we need to design a metal mineral mining lamp that can automatically adjust the lighting effect according to the actual working conditions and has good heat dissipation performance. SUMMARY

[0006] Therefore, it is necessary to provide a lamp for metal mineral mining in view of the problems in the prior art.

[0007] To solve the problems in the prior art, the technical solution adopted by the present application is as follows:

[0008] A lamp for metal mineral mining, comprising a lamp holder, a heat sink fixedly connected with the lower end of the lamp holder, and a light source arranged below the heat sink, the outer part of the heat sink is sleeved with a dust cover, the lower end of the light source is provided with a light reflecting cover, the end of the light reflecting cover away from the light source is fixedly connected with a light transmitting disc, and the lamp further comprises:

[0009] The upper end of the lamp holder is fixedly connected with a supporting plate, an infrared sensor is fixedly connected to the side wall of the lamp holder, the lower end of the supporting plate is fixedly connected with two groups of light control components connected with the light reflecting cover, each light control component comprises an integrated cover connected with the light reflecting cover, the lower end of the integrated cover is slidingly provided with a light control plate, the side of the light control plate close to the center of the light reflecting cover is formed with a square light guide hole, a dust concentration sensor is fixedly connected to the light control plate, and a grating component for adjusting the light intensity is arranged on the light control plate;

[0010] The grating component comprises a light shielding grating rotationally arranged in the light guide hole at equal intervals and two positioning plates fixedly connected to the two sides of the light control plate, the light control component drives the light control plate to move through the two positioning plates, the integrated cover is provided with a cooling mechanism, and the cooling mechanism comprises two fans that are turned over during the movement of the light control plate, and the fans perform auxiliary heat dissipation on the light source with full power output after being turned over.

[0011] Further, the side of each light shielding grating close to the light transmitting disc is fixedly connected with a micro-prism reflective film.

[0012] Further, the light control component further comprises a motor, a main pulley, two auxiliary pulleys, two auxiliary screws, two auxiliary screw sleeves, four sliding rails and two auxiliary screw seats, the motor is fixedly connected with the side wall of the integrated cover, the main pulley is rotationally connected with the side wall of the integrated cover and is fixedly connected with the output end of the motor in the same axis line, the two auxiliary pulleys are arranged on the two sides of the main pulley and are rotationally connected with the side wall of the integrated cover, the auxiliary pulleys are transmissionally connected with the main pulley through a belt, one end of each auxiliary screw is rotationally connected with the inner wall of the integrated cover, and the other end is fixedly connected with the two auxiliary pulleys in the same axis line.

[0013] Two sliding rails fixedly connected with the inner wall of the integrated cover are arranged on the side of each auxiliary screw, the auxiliary screw seat is slidingly connected with the corresponding sliding rail, the auxiliary screw is transmissionally connected with the auxiliary screw seat through the auxiliary screw sleeve, and the auxiliary screw seat is fixedly connected with the positioning plate.

[0014] Further, the grating component further comprises two mini motors and two main shafts, the two mini motors are fixedly connected with the two positioning plates, and one end of each main shaft is fixedly connected with the two mini motors in the same axis line.

[0015] A middle shaft is fixedly connected with the middle part of each light shielding grating in the same axis line, both ends of the middle shaft are rotationally connected with the two positioning plates and are fixedly connected with worm gears, a worm is rotationally arranged on the side of each worm gear and is engaged with the worm gear, and the worm is fixedly connected with the corresponding main shaft in the same axis line.

[0016] Further, the light control assembly further comprises a cushion plate and two dustproof plates, the upper end of the integrated cover is formed with two air holes for installing the fan, the two ends of the cushion plate are fixedly connected with the two positioning plates respectively, the lower ends of the two dustproof plates are fixedly connected with the cushion plate respectively, and the dustproof plates abut against the upper ends of the air holes when the fan is not turned over.

[0017] Further, the cooling mechanism further comprises two drive racks, two drive gears, two drive screw sleeves, two drive screws, two jacking seats and two turning seats, the two drive racks are fixedly connected with the two auxiliary screw seats respectively, the two drive gears are rotationally arranged in the interior of the integrated cover, the drive rack is engaged with the drive gear when the drive rack moves to the side of the drive gear, the two drive screws are coaxially fixedly connected with the two drive gears respectively;

[0018] The two drive screw sleeves are threadedly connected with the two drive screws respectively, the two jacking seats are fixedly connected with the two drive screw sleeves respectively, and the fan is arranged at the upper end of the turning seat and moves along with the movement of the turning seat.

[0019] Further, the side of the jacking seat is provided with a jacking guide rail fixedly connected with the inner wall of the integrated cover, one end of the jacking seat is slidingly connected with the jacking guide rail, and the other end is fixedly connected with the corresponding turning seat.

[0020] Further, the cooling mechanism further comprises two limiting shafts and two limiting sleeves, the two limiting sleeves are coaxially arranged below the turning seat and are fixedly connected with the integrated cover, the two limiting shafts are key-connected with the two limiting sleeves respectively, and the upper end of the limiting shaft is fixedly connected with the turning seat.

[0021] Further, the cooling mechanism further comprises two turning gears and two positioning racks, the upper end of each turning seat is formed with two shaft seats, the turning gear is arranged on the side close to the two shaft seats, the turning gear is fixedly connected with one side of the fan, the two positioning racks are arranged on the sides of the two turning seats and are fixedly connected with the integrated cover, and the turning seat drives the turning gear to be engaged with the corresponding positioning rack during upward movement.

[0022] Further, the turning gear is coaxially fixedly connected with a rotating shaft, the two ends of the rotating shaft are coaxially fixedly connected with main magnetic discs, the sides away from each other of the two shaft seats are fixedly connected with auxiliary magnetic discs respectively, and the auxiliary magnetic discs are transmissionally connected with the main magnetic discs through magnetic force.

[0023] Compared with the prior art, the present application has the following beneficial effects:

[0024] Firstly, compared with manual gear shifting and the fixed brightness mode of the traditional miner's lamp, the present lamp can automatically adjust the brightness of the light source in real time according to the position of the worker through the linkage of the infrared sensor and the controller, intelligently enhances the illumination when the worker is far away, actively reduces the brightness when the worker is close, and shields the strong light through the grille assembly, thereby avoiding the hysteresis of manual operation, upgrading from passive light adjustment to active dynamic adaptation, significantly reducing the visual fatigue of the worker, and improving the operation safety.

[0025] Secondly, compared with the traditional circular light spot lamp, the rectangular light spot formed by the cooperation of the square light guide hole and the reflector can perfectly match the cross section of the tunnel, so that the effective illumination area of the tunnel can be improved, the light energy utilization rate can be improved, the invalid illumination loss can be greatly reduced, and precise targeted illumination can be realized under the same power.

[0026] Thirdly, the dust concentration sensor and the grid assembly linkage mechanism can detect the environmental dust concentration in real time and dynamically adjust the angle of the light shielding grid, so that the light beam angle can be automatically optimized in a high dust environment, the scattering loss can be reduced, and the work surface can always be kept clear and visible.

[0027] Fourthly, the cooling mechanism integrated in the device is linked with the light control assembly, and the fan is automatically started and turned to aim at the radiator under high-power illumination. Compared with the passive cooling of the traditional lamp, the cooling efficiency of the device is improved, the working temperature of the light source is greatly reduced, the service life of the lamp is significantly prolonged, and the replacement frequency and maintenance cost are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a perspective structural schematic diagram of the embodiment;

[0029] Figure 2 is a perspective structural half-sectional view of Figure 1 ;

[0030] Figure 3 is an enlarged view of structure A in Figure 2 ;

[0031] Figure 4 is a perspective structural bottom view of the two light control plates in the embodiment when they are close to each other;

[0032] Figure 5 is a perspective structural schematic diagram of the two light control plates in the embodiment when they are far away from each other;

[0033] Figure 6 is a perspective structural bottom view of the two light control plates in the embodiment when they are far away from each other;

[0034] Figure 7 is a cooperation schematic diagram of the fan and the air hole in the embodiment;

[0035] Figure 8 is a structural schematic diagram of the fan after being folded in the embodiment;

[0036] Figure 9 is a structural schematic diagram of the secondary pulley and the secondary screw in the embodiment;

[0037] Figure 10 is a perspective structural schematic diagram of the cooling mechanism in the embodiment;

[0038] Figure 11 is a schematic diagram of the perspective structure of the main magnetic disk and the auxiliary magnetic disk in the embodiment.

[0039] The reference signs in the drawings are as follows:

[0040] 1, lamp holder; 2, dust cover; 3, heat sink; 4, light source; 5, light shield; 6, light transmission disc; 7, supporting plate; 8, light control assembly; 9, integrated cover; 10, air hole; 11, dust shielding plate; 12, pad; 13, light control plate; 14, light guide hole; 15, motor; 16, main pulley; 17, auxiliary pulley; 18, auxiliary screw; 19, auxiliary screw sleeve; 20, auxiliary screw seat; 21, sliding rail; 22, grating assembly; 23, light shielding grating; 24, micro-prism light reflection film; 25, positioning plate; 26, mini motor; 27, main shaft; 28, worm; 29, worm wheel; 30, central shaft; 31, infrared sensor; 32, dust concentration sensor; 33, cooling mechanism; 34, driving rack; 35, driving gear; 36, driving screw sleeve; 37, driving screw; 38, jacking seat; 39, jacking guide rail; 40, limiting shaft; 41, limiting sleeve; 42, overturning seat; 43, overturning gear; 44, shaft seat; 45, positioning rack; 46, rotating shaft; 47, main magnetic disk; 48, auxiliary magnetic disk; 49, fan. DETAILED DESCRIPTION

[0041] In order to further understand the features, technical means and specific purposes and functions achieved by the present application, the present application will be described in further detail below in combination with the drawings and specific embodiments.

[0042] Reference Figures 1 to 11 A lamp for metal mineral mining, comprising a lamp holder 1, a heat sink 3 fixedly connected to the lower end of the lamp holder 1, and a light source 4 arranged below the heat sink 3, the heat sink 3 being externally sleeved with a dust cover 2, the lower end of the light source 4 being provided with a light shield 5, the end of the light shield 5 away from the light source 4 being fixedly connected with a light transmission disc 6, and further comprising:

[0043] The upper end of the lamp holder 1 is fixedly connected with a supporting plate 7, and the sidewall of the lamp holder 1 is fixedly connected with an infrared sensor 31; the lower end of the supporting plate 7 is fixedly connected with two groups of light control assemblies 8 connected with the reflector 5; each light control assembly 8 comprises an integrated cover 9 connected with the reflector 5; the lower end of the integrated cover 9 is slidingly provided with a light control plate 13; the side of the light control plate 13 close to the center of the reflector 5 is formed with a square light guide hole 14; the light control plate 13 is fixedly connected with a dust concentration sensor 32; the light control plate 13 is further provided with a grating assembly 22; the grating assembly 22 comprises a plurality of light shielding gratings 23 equally and rotationally arranged in the light guide hole 14 and two positioning plates 25 fixedly connected with the two sides of the light control plate 13; the light control assembly 8 drives the light control plate 13 to move through the two positioning plates 25; the integrated cover 9 is provided with a cooling mechanism 33; the cooling mechanism 33 comprises two fans 49 which are turned over during the movement of the light control plate 13; the fans 49 are used for auxiliary heat dissipation of the light source 4 in full power output after being turned over.

[0044] In use, the radiator 3 actively dissipates heat of the lamp, and the infrared sensor 31 is used for judging whether a worker is close to the lamp; when the worker is far away from the lamp, the infrared sensor 31 transmits the signal to the controller, and the controller controls the light source 4 to increase the brightness; similarly, when the worker is close to the lamp, the controller controls the light source 4 to reduce the brightness; in addition, in order to prevent the light source 4 from affecting the field of view of the worker, when the worker is close, the grating assembly 22 controls a plurality of corresponding light shielding gratings 23 to rotate, so that the light shielding gratings 23 can partially shield the light generated by the light source 4, avoid the direct light to the eyes, and reduce the visual fatigue of the worker; meanwhile, when the dust concentration sensor 32 detects that the dust concentration is too high, the dust concentration sensor 32 transmits the signal to the controller, and the controller continues to adjust the angle of the light shielding grating 23, reduces the light energy loss caused by dust scattering, and improves the effective illumination intensity of the light source 4.

[0045] When strong light is needed, the two groups of light control plates 13 move away from each other (as shown in Figure 5 and Figure 6 , at this time, the light transmission disc 6 is completely opened, and the corresponding four fans 49 are turned over and aligned with the radiator 3, at this time, the radiator 3 cooperates with the four fans 49 to strongly dissipate heat of the light source 4, so as to avoid that the light source 4 is affected by overheating and affects normal operation.

[0046] In the above process, the light guide hole 14 is square, so a rectangular light spot is realized under the action of the reflector 5 to match the tunnel, which can reduce energy consumption compared with the traditional circular light spot and is applied to the mineral environment.

[0047] In order to ensure that the target area can still be illuminated by the light source 4 in the low power output state of the light source 4, the following features are further provided:

[0048] Each light-shielding grid 23 has a microprism reflective film 24 fixedly attached to the side closest to the transparent disc 6 (e.g., Figure 3 (As shown). When light passes through the light-shielding grille 23, the microprism reflective film 24 can reflect and refract the light, refocusing the light that might otherwise diverge, thus improving the utilization rate of the light. When the light-shielding grille 23 rotates to block part of the light, the microprism reflective film 24 can redirect the blocked light to the target area, avoiding a significant decrease in lighting intensity due to light blocking, and ensuring that when workers approach the light fixtures, both direct glare is reduced and sufficient illumination is guaranteed for the target area.

[0049] In order to move the two positioning plates 25, and in turn move the light control plate 13, the following features are specifically provided:

[0050] The light control assembly 8 also includes a motor 15, a main pulley 16, two auxiliary pulleys 17, two auxiliary screws 18, two auxiliary screw sleeves 19, four slide rails 21, and two auxiliary screw seats 20. The motor 15 is fixedly connected to the side wall of the integrated cover 9 (e.g., Figure 7 As shown), the main pulley 16 is rotatably connected to the side wall of the integrated cover 9 and coaxially fixed to the output end of the motor 15. Two auxiliary pulleys 17 are respectively located on both sides of the main pulley 16 and rotatably connected to the side wall of the integrated cover 9. The auxiliary pulleys 17 are connected to the main pulley 16 via a belt. One end of each of the two auxiliary screws 18 is rotatably connected to the inner wall of the integrated cover 9, and the other end is coaxially fixed to the two auxiliary pulleys 17. Two slide rails 21 (e.g., [missing information]) are respectively provided on the side of each auxiliary screw 18 and fixed to the inner wall of the integrated cover 9. Figure 9 As shown, the auxiliary screw seat 20 is slidably connected to the corresponding slide rail 21, and the auxiliary screw 18 is driven to the auxiliary screw seat 20 through the auxiliary screw sleeve 19. The auxiliary screw seat 20 is fixedly connected to the positioning plate 25. When it is necessary to move the two positioning plates 25, the motor 15 starts and drives the main pulley 16 to rotate. The main pulley 16 drives the two auxiliary pulleys 17 to rotate through the belt, and the auxiliary pulleys 17 in turn drive the auxiliary screw 18 to rotate. Subsequently, the auxiliary screw 18 drives the auxiliary screw seat 20 to move through the auxiliary screw sleeve 19. The auxiliary screw seat 20 moves along the slide rail 21 and drives the positioning plate 25 to move, ultimately realizing the movement of the light control plate 13 to adjust the opening degree of the transparent disc 6 and the position of the fan 49.

[0051] In order to deflect several light-shielding grilles 23, the following features are also provided:

[0052] The grille assembly 22 also includes two mini motors 26, two main shafts 27, several central shafts 30, several worm gears 28, and several worm wheels 29. The several central shafts 30 are respectively fixedly connected to the center of several light-shielding grilles 23 (e.g., Figure 3 As shown), the two ends of the central shaft 30 are rotatably connected to two positioning plates 25 respectively, and several worm gears 29 are coaxially fixed to the two ends of several central shafts 30 (as shown).Figure 8 As shown, several worm gears 28 are rotatably mounted on the upper ends of several worm wheels 29 and mesh with the corresponding worm wheels 29. Two mini motors 26 are fixedly connected to two positioning plates 25. One end of each of the two main shafts 27 is fixedly connected to the two mini motors 26 on the same axis, and the other end is fixedly connected to the several worm gears 28 on the same axis. When it is necessary to drive several light-shielding grilles 23 to deflect, the mini motors 26 start and drive the main shafts 27 to rotate, which in turn drives the several worm gears 28 to rotate. The rotation of the worm gears 28 drives the worm wheels 29 to rotate, which in turn drives the central shaft 30 to rotate. The central shaft 30 drives the light-shielding grilles 23 to deflect (the self-locking performance between the worm gears 28 and the worm wheels 29 improves the stability of the light-shielding grilles 23 and prevents them from shifting), thus achieving the blocking and adjustment of light to adapt to different lighting needs, such as reducing direct strong light when workers are close by and reducing light energy loss when dust concentration is high.

[0053] To provide dust protection for the unrotated fan 49, the following features are specifically included:

[0054] The light control assembly 8 also includes a pad 12 and two dust shields 11, and the upper end of the integrated cover 9 is formed with two air vents 10 for mounting the fan 49 (e.g. Figure 7 As shown), both ends of the pad 12 are fixedly connected to the two positioning plates 25, and the lower ends of the two dust-proof plates 11 are fixedly connected to the pad 12. When the fan 49 is not rotated, the dust-proof plates 11 abut against the upper end of the air vent 10. When the fan 49 is not rotated ( Figure 7 The fan 49 in the middle is not in the reverse position. Figure 8 (When the fan 49 is in the reversed state), the dust cover 11 abuts against the upper end of the air hole 10 to form an interference fit, preventing dust from entering the interior of the integrated cover 9 through the air hole 10. This provides dust protection for the fan 49 when it is not in operation, avoids dust accumulation on the fan 49 which affects the performance and service life of the fan 49, and ensures that the fan 49 can operate normally when it needs to be reversed for operation.

[0055] To further refine the specific structure of the cooling mechanism 33, so that the fan 49 moves upward when the positioning plate 25 moves away from the center of the transparent disc 6, the following features are also provided:

[0056] The cooling mechanism 33 also includes two drive racks 34, two drive gears 35, two drive sleeves 36, two drive screws 37, two lifting seats 38, two lifting guide rails 39, and two tilting seats 42. The two drive racks 34 are respectively fixedly connected to the two auxiliary screw seats 20 (e.g., Figure 9As shown in the figure), two drive gears 35 are respectively arranged inside the integrated cover 9, the drive rack 34 is engaged with the drive gears 35 when moving to the side of the drive gears 35, two drive screws 37 are respectively coaxially connected with the two drive gears 35, and two drive screw sleeves 36 are respectively threadedly connected with the two drive screws 37 (as Figure 10 As shown in the figure), two jacking seats 38 are respectively connected with the two drive screw sleeves 36, the jacking seats 38 are provided with jacking guide rails 39 which are fixedly connected with the inner wall of the integrated cover 9 on the side of the jacking seats 38, one end of the jacking seats 38 is slidingly connected with the jacking guide rails 39, and the other end is fixedly connected with the corresponding overturning seats 42, and the fan 49 is arranged at the upper end of the overturning seats 42 and moves with the overturning seats 42. When the positioning plate 25 moves away from the center of the light-transmitting disc 6, the auxiliary screw seat 20 drives the drive rack 34 to move, the drive rack 34 is engaged with the drive gears 35 when the drive rack 34 moves to the side of the drive gears 35, the drive gears 35 are driven to rotate by the drive rack 34, the drive screws 37 are driven to rotate by the drive gears 35, the drive screw sleeves 36 are driven to move on the drive screws 37 by the drive screws 37, the jacking seats 38 are driven to move upward along the jacking guide rails 39 by the drive screw sleeves 36, and the overturning seats 42 are driven to move upward by the jacking seats 38, so that the fan 49 moves upward to be overturned to the radiator 3 in the subsequent process, and the full-power output light source 4 is assisted to dissipate heat.

[0057] In order to limit the overturning seats 42, the following features are further provided:

[0058] The cooling mechanism 33 further comprises two limiting shafts 40 and two limiting sleeves 41, the two limiting sleeves 41 are coaxially arranged below the overturning seats 42 and are fixedly connected with the integrated cover 9 (as Figure 10 As shown in the figure), the two limiting shafts 40 are respectively keyed connected with the two limiting sleeves 41, and the upper ends of the limiting shafts 40 are fixedly connected with the overturning seats 42. During the movement of the overturning seats 42, the limiting shafts 40 slide in the limiting sleeves 41 to limit the movement direction of the overturning seats 42, prevent the overturning seats 42 from deviating during the movement, and ensure that the fan 49 can accurately move to the specified position. Meanwhile, the cooperation between the limiting shafts 40 and the limiting sleeves 41 can also support the overturning seats 42 to some extent after the fan 49 is overturned, thereby improving the stability of the fan 49 after being overturned.

[0059] In order to realize that the fan 49 can be overturned to the direction of the radiator 3 when the fan 49 moves upward with the overturning seats 42, the following features are further provided:

[0060] The cooling mechanism 33 further comprises two turnover gears 43 and two positioning racks 45, the upper end of each turnover seat 42 is respectively formed with two shaft seats 44, the turnover gears 43 are arranged on the side close to the two shaft seats 44, the turnover gears 43 are fixedly connected with one side of the fan 49, the two positioning racks 45 are respectively arranged on the side of the two turnover seats 42 and are fixedly connected with the integrated cover 9, the turnover seat 42 drives the turnover gears 43 to mesh with the corresponding positioning racks 45 during upward movement. When the turnover seat 42 moves upward, the turnover gears 43 move with the turnover seat 42, when the turnover gears 43 mesh with the positioning racks 45, the positioning racks 45 are fixed, the turnover gears 43 roll on the positioning racks 45, thereby driving the fan 49 to rotate around the shaft seat 44, realizing the turnover of the fan 49 to the direction of the radiator 3, so that the fan 49 can be aligned with the radiator 3 to effectively assist the light source 4 in heat dissipation.

[0061] In order to improve the force between the turnover gears 43 and the shaft seats 44, and further improve the stability of the fan 49 after turnover, and avoid the fan 49 from moving, the following features are further provided:

[0062] The turnover gears 43 are coaxially fixedly connected with a rotating shaft 46 (as shown in Figure 11 The two ends of the rotating shaft 46 are coaxially fixedly connected with main magnetic disks 47, the sides away from the two shaft seats 44 are respectively fixedly connected with auxiliary magnetic disks 48, and the auxiliary magnetic disks 48 are connected with the main magnetic disks 47 through magnetic transmission. After the fan 49 is turned over, the main magnetic disks 47 and the auxiliary magnetic disks 48 are connected through magnetic transmission, and the magnetic force generated can improve the force between the turnover gears 43 and the shaft seats 44, thereby improving the stability of the fan 49 after turnover, avoiding the fan 49 from moving during work, ensuring that the fan 49 can continuously and stably dissipate heat for the radiator 3, and ensuring the normal working temperature of the light source 4.

[0063] The working principle of the device is as follows: when the lamp is installed in the tunnel of metal mineral mining, the infrared sensor 31 starts to work and monitors the distance between the worker and the lamp in real time. When the worker is far away from the lamp, the infrared sensor 31 transmits the detected signal to the controller, and the controller controls the light source 4 to increase the brightness to meet the lighting demand at a farther position; when the worker approaches the lamp, the controller controls the light source 4 to reduce the brightness, and the mini motor 26 in the grating assembly 22 starts to drive the main shaft 27, the worm 28 and the worm wheel 29 to rotate, so that the light shielding grating 23 rotates to partially cover the light generated by the light source 4, avoiding direct sunlight to the eyes and reducing the visual fatigue of the worker. The dust concentration sensor 32 detects the dust concentration in the environment in real time, and when the dust concentration is too high, the signal is transmitted to the controller, and the controller further adjusts the angle of the light shielding grating 23 to reduce the light energy loss caused by dust scattering and improve the effective illumination intensity of the light source 4.

[0064] When strong lighting is needed, the controller controls the motor 15 to start, driving the main pulley 16, the auxiliary pulley 17 and the auxiliary screw 18 to rotate, the auxiliary screw sleeve 19 drives the auxiliary screw seat 20 and the positioning plate 25 to move, so that the two groups of light control plates 13 move in the direction away from each other, and the light transmission disc 6 is completely opened. During the movement of the light control plate 13, the auxiliary screw seat 20 drives the driving rack 34 to move, the driving rack 34 is engaged with the driving gear 35 and drives the driving screw 37 to rotate, the driving screw 37 cooperates with the driving screw sleeve 36 to make the jacking seat 38 and the overturning seat 42 move upward. When the overturning seat 42 moves upward, the overturning gear 43 is engaged with the positioning rack 45, driving the fan 49 to overturn in the direction of the radiator 3, at this time, the four fans 49 are aligned with the radiator 3, cooperating with the radiator 3 to perform strong heat dissipation on the light source 4 of full power output, avoiding the influence of the light source 4 on the normal operation due to overheating.

[0065] During the whole working process, the light guide hole 14 is square, realizes rectangular light spot under the action of the reflector 5, matches the shape of the roadway, and reduces energy consumption compared with the traditional circular light spot. The reflection and refraction of the micro-prism reflective film 24 to the light improve the utilization rate of the light. The limiting of the overturning seat 42 by the limiting shaft 40 and the limiting sleeve 41, and the magnetic force transmission of the main magnetic disc 47 and the auxiliary magnetic disc 48 ensure the stability of the fan 49 after overturning, so that the lamp can work stably and efficiently in the complex mining environment.

[0066] The above embodiments only express one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as the limitation of the patent scope of the present application. It should be noted that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A lamp for metal mineral mining, comprising a lamp holder (1), a heat sink (3) fixedly connected with the lower end of the lamp holder (1), and a light source (4) arranged below the heat sink (3), the outer part of the heat sink (3) is sleeved with a dust cover (2), the lower end of the light source (4) is provided with a reflector cover (5), and the end of the reflector cover (5) away from the light source (4) is fixedly connected with a light-transmitting disc (6), characterized in that, Also include: The upper end of the lamp holder (1) is fixedly connected with a supporting plate (7), and the side wall of the lamp holder (1) is fixedly connected with an infrared sensor (31). The lower end of the supporting plate (7) is fixedly connected with two groups of light control assemblies (8) connected with the reflector (5). Each light control assembly (8) comprises an integrated cover (9) connected with the reflector (5). The lower end of the integrated cover (9) is slidably provided with a light control plate (13). The side of the light control plate (13) close to the center of the reflector (5) is formed with a square light guide hole (14). The light control plate (13) is fixedly connected with a dust concentration sensor (32). The light control plate (13) is also provided with a grid assembly (22) for adjusting the intensity of light; The light control assembly (8) further comprises a motor (15), a main pulley (16), two auxiliary pulleys (17), two auxiliary screws (18), two auxiliary screw sleeves (19), four slide rails (21) and two auxiliary screw seats (20). The motor (15) is fixedly connected with the side wall of the integrated cover (9). The main pulley (16) is rotatably connected with the side wall of the integrated cover (9) and coaxially fixedly connected with the output end of the motor (15). The two auxiliary pulleys (17) are arranged on the two sides of the main pulley (16) and rotatably connected with the side wall of the integrated cover (9). The auxiliary pulleys (17) are drivingly connected with the main pulley (16) through a belt. One end of each auxiliary screw (18) is rotatably connected with the inner wall of the integrated cover (9), and the other end is coaxially fixedly connected with the two auxiliary pulleys (17); Two slide rails (21) are arranged on the side of each auxiliary screw (18) and fixedly connected with the inner wall of the integrated cover (9). The auxiliary screw seat (20) is slidably connected with the corresponding slide rail (21). The auxiliary screw (18) is drivingly connected with the auxiliary screw seat (20) through the auxiliary screw sleeve (19). The auxiliary screw seat (20) is fixedly connected with the positioning plate (25); The grid assembly (22) comprises a light-shielding grid (23) rotatably arranged in the light guide hole (14) and two positioning plates (25) fixedly connected with the two sides of the light control plate (13). The light control assembly (8) drives the light control plate (13) to move through the two positioning plates (25). The integrated cover (9) is provided with a cooling mechanism (33). The cooling mechanism (33) comprises two fans (49) which are turned over during the movement of the light control plate (13). The fans (49) assist in heat dissipation of the full-power light source (4) after turning over; The cooling mechanism (33) further comprises two drive racks (34), two drive gears (35), two drive screw sleeves (36), two drive screws (37), two jacking seats (38) and two turnover seats (42). The two drive racks (34) are fixedly connected with the two auxiliary screw seats (20). The two drive gears (35) are rotatably arranged in the integrated cover (9). The drive rack (34) is engaged with the drive gear (35) when it moves to the side of the drive gear (35). The two drive screws (37) are coaxially fixedly connected with the two drive gears (35). Two drive nuts (36) are respectively in threaded connection with two drive screws (37), two jacking seats (38) are respectively fixedly connected with the two drive nuts (36), and the fan (49) is arranged at the upper end of the turnover seat (42) and moves with the turnover seat (42). The cooling mechanism (33) further comprises two turnover gears (43) and two positioning racks (45), the upper end of each turnover seat (42) is formed with two shaft seats (44) respectively, the turnover gears (43) are arranged on the side close to the two shaft seats (44), the turnover gears (43) are fixedly connected with one side of the fan (49), and the two positioning racks (45) are arranged on the sides of the two turnover seats (42) respectively and are fixedly connected with the integrated cover (9); during the upward movement of the turnover seat (42), the turnover gears (43) drive the corresponding positioning racks (45) to mesh.

2. A luminaire for use in the mining of metal ores according to claim 1, characterised in that, Each light-shielding grid (23) is fixedly connected with a micro-prism reflective film (24) on the side close to the light-transmitting disc (6).

3. A luminaire for metal ore mining according to claim 1, characterized in that, The grid assembly (22) further comprises two mini-motors (26) and two main shafts (27), the two mini-motors (26) are fixedly connected with the two positioning plates (25) respectively, and one end of each main shaft (27) is fixedly connected with the corresponding mini-motor (26) in an axis line. The middle part of each light-shielding grid (23) is fixedly connected with a middle shaft (30) in an axis line, both ends of the middle shaft (30) are rotatably connected with the two positioning plates (25) and are fixedly connected with a worm gear (29), a worm shaft (28) is rotatably arranged on the side of the worm gear (29) and meshes with the worm gear (29), and the worm shaft (28) is fixedly connected with the corresponding main shaft (27) in an axis line.

4. A luminaire for metal ore mining according to claim 1, characterized in that, The light control assembly (8) further comprises a backing plate (12) and two dust-shielding plates (11), the upper end of the integrated cover (9) is formed with two air holes (10) for mounting the fan (49), both ends of the backing plate (12) are fixedly connected with the two positioning plates (25), and the lower ends of the two dust-shielding plates (11) are fixedly connected with the backing plate (12); when the fan (49) is not turned over, the dust-shielding plates (11) abut against the upper ends of the air holes (10).

5. A luminaire for metal ore mining as claimed in claim 1, wherein, The side of the jacking seat (38) is provided with a jacking guide rail (39) fixedly connected with the inner wall of the integrated cover (9), one end of the jacking seat (38) is slidably connected with the jacking guide rail (39), and the other end is fixedly connected with the corresponding turnover seat (42).

6. A luminaire for metal ore mining as claimed in claim 1, wherein, The cooling mechanism (33) further comprises two limiting shafts (40) and two limiting sleeves (41), the two limiting sleeves (41) are arranged below the turnover seats (42) in an axis line and are fixedly connected with the integrated cover (9), the two limiting shafts (40) are respectively in key connection with the two limiting sleeves (41), and the upper end of the limiting shaft (40) is fixedly connected with the turnover seat (42).

7. A luminaire for metal ore mining according to claim 1, characterized in that, The turnover gear (43) is fixedly connected with a rotating shaft (46) in an axis line, both ends of the rotating shaft (46) are fixedly connected with a main magnetic disc (47) in an axis line, the sides away from the two shaft seats (44) are respectively fixedly connected with a secondary magnetic disc (48), and the secondary magnetic disc (48) is in driving connection with the main magnetic disc (47) through magnetic force.

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