A lighting device with adjustable illumination range

Abstract

The application provides an illuminating device with adjustable illumination range, which is characterized by a fixing mechanism, a lampshade and a driving mechanism connected with the fixing mechanism and the lampshade respectively. The fixing mechanism is fixedly connected with the illuminating lamp through a first transmission member, and the illuminating lamp is arranged in the lampshade. The first transmission member is rotatably provided with a second transmission member with an outer thread. A third transmission member adapted to the second transmission member is arranged on a moving plate of the lampshade, and the third transmission member is an integral structure with the lampshade. A driving motor is embedded in the fixing plate, and the driving motor extends a driving rod towards the illuminating lamp. A driving wheel is fixedly arranged on the end of the driving rod close to the illuminating lamp, and the driving wheel is engaged with the teeth on the second transmission member. Under the driving of the driving motor, the second transmission member is driven to rotate through the teeth, so that the third transmission member sleeved on the second transmission member is rotated through the outer thread, and the whole lampshade is driven to move up and down, thereby completing the adjustment of the illumination range.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of lighting devices, and particularly relates to a lighting device with adjustable lighting range. BACKGROUND

[0002] With the development of society, people's life and work cannot be separated from light. At present, the light provided by the lighting device is used for creating a special atmosphere or emphasizing features, and the most widely and most important use is lighting, that is, creating good visibility.

[0003] The lighting device generally comprises a light source, a light source base and a lampshade covering the light source. The lampshade is fixedly connected with the light source base. The light source is used to provide light and is arranged on the light source base. The lampshade is used to protect the light source and also realizes the function of spotlighting by limiting the light range of the light source.

[0004] In the prior art, the lampshade of the traditional lighting device is fixedly connected with the light source base, and the two cannot be adjusted relative to each other. Therefore, the light range of the light source is limited to a certain extent by the lampshade. When the light power of the light source is sufficient, the light range of the light source cannot be expanded to improve the utilization rate of energy. When the light power of the light source is insufficient, the light range of the light source cannot be reduced to spotlight the light source and improve the lighting effect. Therefore, the lighting device in the prior art cannot be applied to some scenes that require flexible adjustment of the light range to meet the needs of users. SUMMARY

[0005] Therefore, the present application aims to provide a lighting device with adjustable lighting range, which aims to solve the problem that the lighting range of the traditional lighting device in the prior art is not adjustable.

[0006] The lighting device with adjustable lighting range comprises:

[0007] A fixing mechanism for fixing the lighting device;

[0008] A lampshade, wherein the lampshade is internally provided with a lighting lamp;

[0009] A driving mechanism connected with the fixing mechanism and the lampshade respectively, for driving the lampshade to move in the direction of approaching or moving away from the fixing mechanism;

[0010] The driving mechanism comprises a driving motor arranged on the fixing mechanism, a first transmission member fixedly connected with the illuminating lamp and the fixing mechanism respectively, and a second transmission member rotatably arranged on the first transmission member, the second transmission member comprises a gear arranged at one end close to the fixing mechanism and an external thread extending from the gear away from the fixing mechanism, the driving motor extends a driving rod towards the illuminating lamp, one end of the driving rod close to the illuminating lamp is fixedly provided with a driving wheel, the driving wheel is engaged with the gear, the lampshade comprises a moving plate and a cover body extending outwards from the moving plate, the moving plate is provided with a third transmission member matched with the external thread, and the third transmission member is rotatably arranged on the second transmission member, the driving wheel is used for rotating the external thread of the second transmission member under the driving of the driving motor, so that the third transmission member moves along the direction close to or away from the fixing mechanism through the external thread.

[0011] The illuminating device with adjustable illuminating range comprises a fixing mechanism, a lampshade, and a driving mechanism connected with the fixing mechanism and the lampshade respectively, the fixing mechanism is fixedly connected with the illuminating lamp through the first transmission member, the illuminating lamp is arranged in the lampshade, the first transmission member is rotatably arranged with the second transmission member provided with an external thread, the moving plate of the lampshade is provided with the third transmission member matched with the second transmission member, and the third transmission member is an integral structure with the lampshade, the driving motor is embedded in the fixing plate, the driving motor extends the driving rod towards the illuminating lamp, one end of the driving rod close to the illuminating lamp is fixedly provided with the driving wheel, the driving wheel is engaged with the gear on the second transmission member, and the driving wheel is used for rotating the second transmission member under the driving of the driving motor, so that the third transmission member sleeved on the second transmission member is rotated through the external thread, and the whole lampshade is moved up and down, thereby completing the adjustment of the illuminating range.

[0012] Further, one end of the first transmission member close to the illuminating lamp is fixedly provided with a limiting ring, the limiting ring is used for abutting against the third transmission member when the lampshade moves towards the illuminating lamp.

[0013] Further, the fixing mechanism is provided with a limiting groove symmetrically arranged with respect to the first transmission member, the moving plate extends a limiting rod movably matched with the limiting groove towards the fixing mechanism, and the limiting groove is used for abutting against the groove bottom of the limiting groove when the lampshade moves towards the fixing mechanism.

[0014] Further, the lampshade is fixedly provided with a transparent plate at the bottom.

[0015] Further, the cover body extends a support platform away from the transparent plate, a cleaning mechanism movably arranged on the support platform, the cleaning mechanism comprising a gear disc and an internal gear wheel engaged with the gear disc, a cleaning rod fixed on the internal gear wheel, and bristles arranged on a side of the cleaning rod close to the transparent plate, the bristles used to clean the outside of the transparent plate under the driving of the cleaning mechanism.

[0016] Further, the support platform extends a fixing column towards the illuminating lamp, and an end of the fixing column away from the support platform is used to movably connect with the internal gear wheel.

[0017] Further, the limiting rod and the cover body are provided with an accommodating space and are in communication with each other, wherein a first gear rack is arranged on the inner wall of the limiting groove, a fixing gear wheel adapted to the first gear rack is arranged on an end of the limiting rod close to the groove bottom, a transmission assembly is arranged in the accommodating space, the transmission assembly is composed of a plurality of transmission rods, one end of the transmission assembly is rotatably matched with the fixing gear wheel, the other end is rotatably matched with a transmission gear wheel fixed on a side of the cover body close to the support platform, and the transmission gear wheel is connected with the cleaning mechanism through a reciprocating mechanism.

[0018] Further, the reciprocating mechanism comprises a second gear rack fixed on the inner wall of the cover body and a reciprocating assembly engaged with the second gear rack and the transmission gear wheel, wherein the reciprocating assembly comprises two external gear wheels connected through a connecting rod, a second reciprocating rod movably connected with the connecting rod, a first reciprocating rod movably connected with an end of the second reciprocating rod away from the connecting rod, and a reciprocating gear wheel fixedly connected with an end of the first reciprocating rod away from the second reciprocating rod, the reciprocating gear wheel is engaged with the transmission gear wheel, and the external gear wheels are engaged with the second gear rack and the gear disc respectively.

[0019] Further, a sliding rail is arranged on the support platform, a movable column is slidably arranged in the sliding rail, and an end of the movable column away from the sliding rail is connected with the external gear wheel, so that the external gear wheel moves in a set direction of the sliding rail.

[0020] Other advantages and technical effects of the illumination device with adjustable illumination range according to the present application will be described in detail in the specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A cross-sectional view of the illumination device with adjustable illumination range provided for the first embodiment of the present application;

[0022] Figure 2 A perspective view of the illumination device with adjustable illumination range provided for the first embodiment of the present application;

[0023] Figure 3 FIG. 2 is a perspective view of the lighting device according to the second embodiment of the present application;

[0024] Figure 4 FIG. 3 is a perspective view of the lighting device according to the second embodiment of the present application at position A;

[0025] Figure 5 FIG. 4 is a sectional view of the lighting device according to the second embodiment of the present application;

[0026] Figure 6 FIG. 5 is a perspective view of the lighting device according to the second embodiment of the present application at position B;

[0027] Figure 7 FIG. 6 is a perspective view of the reciprocating mechanism of the lighting device according to the second embodiment of the present application;

[0028] Figure 8 FIG. 7 is a perspective view of the cleaning mechanism of the lighting device according to the second embodiment of the present application at a certain working state;

[0029] Figure 9 FIG. 8 is a perspective view of the cleaning mechanism of the lighting device according to the second embodiment of the present application after cleaning is completed;

[0030] Figure 10 FIG. 9 is a sectional view of the lighting device according to the third embodiment of the present application.

[0031] The following detailed description will further describe the present application with reference to the above-mentioned drawings. DETAILED DESCRIPTION

[0032] In order to facilitate the understanding of the present application, the following will make a more comprehensive description of the present application with reference to the related drawings. The drawings show several embodiments of the present application. However, the present application can be realized in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0033] It should be noted that when an element is referred to as being "fixedly attached" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements can be present. The terms "vertical", "horizontal", "left", "right", and similar expressions used herein are for illustrative purposes only.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for describing particular embodiments only and is not intended to be limiting of the application. The use herein of the terms "and / or" includes a set of one or more associated listed items.

[0035] Embodiment One

[0036] Please refer to Figure 1 and Figure 2 , Figure 1 A sectional view of the lighting device with adjustable lighting range provided by Embodiment One of the present application, Figure 2 A perspective view of the lighting device with adjustable lighting range provided by Embodiment One of the present application, which comprises a fixing mechanism, a lampshade, and a driving mechanism connected with the fixing mechanism and the lampshade respectively, and a lighting lamp 2 is arranged in the lampshade.

[0037] In this embodiment, the fixing mechanism can comprise a hanging plate 1, a fixed plate 12 extending outwardly from the hanging plate 1, and a first transmission member 13 extending outwardly from the middle of the fixed plate 12, and the end of the first transmission member 13 away from the fixed plate 12 is fixedly connected with the lighting lamp 2. In particular, the first transmission member 13 is rotatably provided with a second transmission member 15 with external threads, and the end of the second transmission member 15 close to the fixed plate 12 is provided with a gear 14, i.e. the outer surface of the second transmission member 15 comprises the gear 14 and the external threads. A driving motor 51 is embedded in the fixed plate 12, and a through hole can be formed in the side wall of the fixed plate 12 for leading the power cord of the driving motor 51 out of the fixed plate 12 to be electrically connected with an external power source. The driving motor 51 extends a driving rod 52 toward the lighting lamp 2, and the end of the driving rod 52 close to the lighting lamp 2 is fixedly provided with a driving wheel 53 which is engaged with the gear 14. In addition, the lampshade comprises a moving plate 31 and a cover body 32 with a certain thickness extending outwardly from the moving plate 31. The caliber of the end of the cover body 32 close to the moving plate 31 is smaller than that of the end of the cover body 32 away from the moving plate 31, and the caliber gradually increases from the end of the cover body 32 close to the moving plate 31 to the end of the cover body 32 away from the moving plate 31. It should be noted that the inner side of the cover body 32 can be coated with a light-reflecting material to increase the light-reflecting effect and meet the needs of workers who need to use strong light. In some other optional embodiments, a light-reflecting bowl can also be arranged in the cover body 32, wherein the light-reflecting bowl should not interfere with the lighting lamp 2, and also should not interfere with the lighting lamp 2 during the process of moving the light-reflecting bowl up and down with the lampshade. In addition, a through hole can be formed in the moving plate 31 for leading the power cord of the lighting lamp 2 out of the moving plate 31 to be electrically connected with an external power source.

[0038] The third transmission member 311 is arranged in the middle of the moving plate 31 and is adapted to the first transmission member 13. The first transmission member 13 and the second transmission member 15 pass through the third transmission member 311 in the moving plate 31. In this embodiment, the third transmission member 311 can be a nut embedded in the moving plate 31. It can be understood that the driving wheel 53 is driven by the driving motor 51 to drive the second transmission member 15 to rotate, so that the third transmission member 311 sleeved on the second transmission member 15 moves up and down through the external thread. Since the third transmission member 311 is an integral structure with the lampshade, the entire lampshade can move on the second transmission member 15. In addition, by controlling the rotation direction of the driving wheel 53, the moving direction of the lampshade is further controlled. For example, when the driving wheel 53 rotates clockwise, the lampshade can move upwards. When the driving wheel 53 rotates counterclockwise, the lampshade can move downwards. If the rotation direction of the external thread of the second transmission member 15 is changed, when the driving wheel 53 rotates clockwise, the lampshade can move downwards. When the driving wheel 53 rotates counterclockwise, the lampshade can move upwards.

[0039] In order to avoid the lampshade from being damaged during the moving process and not to exceed the moving stroke, the movement of the lampshade needs to be limited. In this embodiment, a limiting ring 312 is fixed at one end of the first transmission member 13 close to the lighting lamp 2. The limiting ring 312 is used to abut against the third transmission member 311 when the lampshade moves to the limit in the direction of the lighting lamp 2, thereby completing the lower limit of the lampshade movement. On the other hand, a limiting groove 16 symmetrical to the first transmission member 13 is formed in the hanging plate 1. The moving plate 31 extends in the direction of the hanging plate 1 and extends a limiting rod 33 which is movably matched with the limiting groove 16. The limiting rod 33 is always located in the limiting groove 16, so that the movement of the lampshade is more stable and will not shake. When the lampshade moves to the limit position in the direction of the hanging plate 1, it abuts against the groove bottom of the limiting groove 16, thereby completing the upper limit of the lampshade movement. It should be noted that the third transmission member 311 is always on the external thread, that is, the third transmission member 311 will not touch the teeth 14 on the second transmission member 15.

[0040] In this embodiment, a transparent plate 4 is also fixed at the bottom of the lampshade. The transparent plate 4 can be fixed with the cover body 32 in a way of embedding or clamping. The purpose of arranging the transparent plate 4 is to isolate dust to some extent. It can be understood that dust is usually suspended in the air, especially in outdoor environment. If the lighting lamp 2 is exposed for a long time, dust will inevitably enter, thereby affecting the service life of the lighting lamp 2.

[0041] In summary, the lighting device with adjustable lighting range provided by the present application sets the fixing mechanism, the lampshade and the driving mechanism connected with the fixing mechanism and the lampshade respectively, the fixing mechanism is fixedly connected with the lighting lamp through the first transmission member, the lighting lamp is arranged in the lampshade, the first transmission member is rotationally provided with the second transmission member with external threads, the third transmission member matched with the second transmission member is arranged on the moving plate of the lampshade, and the third transmission member is an integral structure with the lampshade, the driving motor is embedded in the fixing plate, the driving motor extends the driving rod towards the lighting lamp, the driving rod is fixedly provided with the driving wheel at the end close to the lighting lamp, and the driving wheel is meshed with the teeth on the second transmission member, under the driving of the driving motor, the second transmission member is driven to rotate through the teeth, the third transmission member sleeved with the second transmission member is rotated through the external threads, and then the whole lampshade is driven to move up and down, so that the adjustment of the lighting range is completed.

[0042] Embodiment two

[0043] Please refer to Figures 3 to 9 , Figure 3 the structure schematic view of the lighting device with adjustable lighting range provided by the second embodiment of the present application from a certain angle, Figure 4 the structure schematic view of the lighting device with adjustable lighting range provided by the second embodiment of the present application at position A, Figure 5 the sectional view of the lighting device with adjustable lighting range provided by the second embodiment of the present application, Figure 6 the structure schematic view of the lighting device with adjustable lighting range provided by the second embodiment of the present application at position B, Figure 7 the structure schematic view of the reciprocating mechanism in the lighting device with adjustable lighting range provided by the second embodiment of the present application, Figure 8 the structure schematic view of the cleaning mechanism in the lighting device with adjustable lighting range provided by the second embodiment of the present application in a certain working state, Figure 9 the structure schematic view of the cleaning mechanism in the lighting device with adjustable lighting range provided by the second embodiment of the present application after cleaning is completed, the lighting device with adjustable lighting range in the second embodiment is different from the lighting device with adjustable lighting range in the first embodiment in that it further includes the related mechanism for cleaning the transparent plate 4 during the movement of the lampshade.

[0044] It should be noted that the conventional lighting device is generally provided with a transparent plate 4 or other objects which can transmit light and protect the lighting lamp 2 under the lighting lamp 2, i.e. the light source. The transparent plate 4 can not only protect the lighting lamp to a certain extent, but also block dust in the air. However, due to the particularity of the use scene, the lighting device is installed at a high position. If the transparent plate 4 surface needs to be cleaned, it is difficult to clean. If a cleaning brush is directly installed on the surface of the transparent plate 4, the cleaning brush generally includes a cleaning framework and bristles fixed to the cleaning framework, which will cover a certain area of the surface of the transparent plate 4, which will inevitably block the light and affect the light efficiency. Meanwhile, it is not beautiful. The lighting device with a cleaning mechanism provided in the embodiment can effectively solve the above problems.

[0045] Specifically, the limiting rod 33 and the cover body 32 are provided with an accommodating space and are in communication with each other. It can be understood that the limiting rod 33 and the cover body 32 are hollow structures. The inner wall of the limiting groove 16 is provided with a first rack 17, and the length of the first rack 17 is at least the stroke of the upward and downward movement of the lampshade. The end of the limiting rod 33 close to the groove bottom of the limiting groove 16 is provided with a fixed gear 73 matched with the first rack 17. The accommodating space is provided with a transmission assembly composed of a plurality of transmission rods 7. One end of the transmission assembly is in rotational cooperation with the fixed gear 73, and the other end is in rotational cooperation with a transmission gear 8 fixed to one side of the cover body 32 close to the support platform 321. It should be noted that the two ends of each transmission rod 7 are provided with bevel gears 71, and the transmission rod 7 is fixed by a fixed bearing 72 arranged in the hollow structure of the limiting rod 33 and the cover body 32. Each transmission rod 7 is connected end to end through the bevel gears 71 to complete transmission. Specifically, when the lampshade moves upward or downward, the fixed gear 73 is engaged with the first rack 17, the fixed gear 73 moves upward on the first rack 17, the rotation of the fixed gear 73 drives the bevel gears 71 engaged therewith to rotate, and the rotation of the bevel gears 71 drives the rotation of the entire transmission rod 7. Under the rotation transmission of the transmission rod 7, the transmission gear 8 is finally driven to rotate. In addition, the transmission gear 8 can also be fixed by the fixed bearing 72. It can be understood that the movement of the lampshade will drive the transmission assembly to work, so that the transmission gear 8 rotates.

[0046] Further, the transmission gear 8 is connected with the cleaning mechanism through a reciprocating mechanism, the reciprocating mechanism comprises a second rack 65 fixed on the inner wall of the cover 32, and a reciprocating assembly engaged with the second rack 65 and the transmission gear 8 respectively, wherein the reciprocating assembly comprises two outer gears 61 connected by a connecting rod 62, a second reciprocating rod 63 movably connected with the connecting rod 62, a first reciprocating rod 64 movably connected with the second reciprocating rod 63 away from the connecting rod 62, and a reciprocating gear 81 fixedly connected with the first reciprocating rod 64 away from the second reciprocating rod 63, the reciprocating gear 81 is engaged with the transmission gear 8, the outer gears 61 are engaged with the second rack 65 and the gear disc 6 respectively, in this embodiment, two identical outer gears 61 are engaged with the gear disc 6 of the cleaning mechanism, and the outer gears 61 are arranged between the second rack 65 and the gear disc 6, the centers of the two outer gears 61 are connected by the connecting rod 62, and the two outer gears 61 are synchronously rotated between the second rack 65 and the gear disc 6 under the driving of the connecting rod 62, since the second rack 65 is fixed on the inner wall of the cover 32, when the two outer gears 61 rotate clockwise at the same time, the gear disc 6 rotates counterclockwise, and vice versa, in addition, the movable connection between the second reciprocating rod 63 and the first reciprocating rod 64 rotates around the reciprocating gear 81, and the rotating direction of the reciprocating gear 81 is determined by the rotating direction of the transmission gear 8, wherein the rotating direction of the reciprocating gear 81 is opposite to that of the transmission gear 8, it can be understood that the reciprocating mechanism is used to drive the two outer gears 61 on the connecting rod 62 to make reciprocating motion between the second rack 65 and the gear disc 6 under the rotation of the reciprocating gear 81, so as to make the cleaning mechanism work.

[0047] In this embodiment, the cover 32 extends a support platform 321 away from the transparent plate 4, and the cleaning mechanism is movably arranged on the support platform 321, the cleaning mechanism comprises the gear disc 6 and the inner gear 66 engaged with the gear disc 6, and the cleaning rod 9 is fixed on the inner gear 66, and the cleaning rod 9 is provided with bristles on the side close to the transparent plate 4, the bristles are used to clean the outer side of the transparent plate 4 under the driving of the cleaning mechanism, wherein the reciprocating motion of the two outer gears 61 drives the gear disc 6 to make alternating motion of clockwise rotation and counterclockwise rotation, it can be understood that the alternating motion of clockwise rotation and counterclockwise rotation of the gear disc 6 drives the periodic swinging of the cleaning rod 9, it should be noted that if the shape of the transparent plate 4 is circular, the length of the cleaning rod 9 can be set as the radius of the circle, and a plurality of inner gears 66 provided with cleaning rods 9 can be arranged to clean the light transmission area of the transparent plate 4 comprehensively.

[0048] Due to the arrangement of the cleaning mechanism, the cleaning rod 9 can periodically swing on the transparent plate 4 along with the up and down movement of the lampshade, and when the lampshade stops moving, the cleaning rod 9 must be in a non-expanded state, that is, the cleaning rod 9 will not stay at the light-emitting area to affect the light emission. Therefore, the up and down movement of the lampshade can be set to multiple gears, that is, the lampshade will move a preset distance at each gear, and during the movement, the cleaning rod 9 periodically swings to clean the surface of the transparent plate 4. After moving the preset distance, the cleaning rod 9 is retracted into the cover body 32 and is in a non-expanded state. At this time, the user cannot see the cleaning rod 9 from the outside, which ensures the overall aesthetics of the lighting device. Specifically, the swinging speed of the cleaning rod 9 can be controlled by adjusting the gear ratio. When the swinging speed of the cleaning rod 9 is fast, it is beneficial to remove dust. In this embodiment, when the transmission gear 8 is a large gear and the reciprocating gear 81 is a small gear, the fast reciprocating movement of the connecting rod 62 can be achieved, which in turn drives the two external gears 61 to move fast and reciprocally, resulting in a faster swinging speed of the cleaning rod 9.

[0049] In addition, the support platform 321 extends a plurality of fixed columns 82 towards the lighting lamp 2. The end of the fixed column 82 away from the support platform 321 is used to be movably connected with the internal gear 66 and the reciprocating gear 81 to support the internal gear 66 and the reciprocating gear 81. Specifically, the first sliding rail is formed on the support platform 321, and the movable column (not shown in the figure) is slidably arranged in the first sliding rail. The end of the movable column away from the first sliding rail is connected with the external gear 61 to make the external gear 61 move in the set direction of the sliding rail. Specifically, the movable column is located on one side of the external gear 61, and the connecting rod 62, the first reciprocating rod 64 and the second reciprocating rod 63 are located on the other side of the external gear 61 without interfering with other components. The set direction of the first sliding rail is consistent with the direction of the reciprocating movement of the two external gears 61. At the same time, the second sliding rail can also be formed on the support platform 321, and the third sliding rail 67 adapted to the second sliding rail is formed on the gear disc 6. The sliding cooperation of the second sliding rail and the third sliding rail 67 makes the gear disc 6 rotate on the support platform 321. In other optional embodiments, a support bearing can also be arranged on the support platform 321. By embedding the support bearing in the third sliding rail 67, the gear disc 6 can also rotate on the support platform 321.

[0050] In summary, the lighting device with adjustable lighting range provided by the present application sets the fixing mechanism, the lampshade, and the driving mechanism connected with the fixing mechanism and the lampshade respectively, and the fixing mechanism is fixedly connected with the lighting lamp through the first transmission member, and the lighting lamp is arranged in the lampshade, the first transmission member is rotationally provided with the second transmission member with external threads, the third transmission member matched with the second transmission member is arranged on the moving plate of the lampshade, and the third transmission member is an integral structure with the lampshade, and the driving motor is embedded in the fixing plate, the driving motor extends the driving rod towards the lighting lamp, the driving wheel is fixedly arranged at the end of the driving rod close to the lighting lamp, and the driving wheel is meshed with the teeth on the second transmission member, under the driving of the driving motor, the second transmission member is driven to rotate through the teeth, so that the third transmission member sleeved on the second transmission member is rotated through the external threads, and the whole lampshade is driven to move up and down, so that the adjustment of the lighting range is completed, and in addition, the transparent plate fixedly arranged at the bottom of the lampshade can be cleaned through the cleaning mechanism during the up and down movement of the lampshade, so that the light transmittance of the lighting device is maintained.

[0051] Embodiment three

[0052] As Figure 10 shown, the cross-sectional view of the lighting device with adjustable lighting range provided by the present application in embodiment three is shown, which is different from the lighting device with adjustable lighting range in the second embodiment in that the transmission assembly is not arranged, that is, the reciprocating mechanism and the cleaning mechanism are not driven by the transmission assembly, and it should be noted that the lighting device provided in embodiment two can be cleaned during the adjustment of the lighting range, that is, the cleaning mechanism is driven to work during the up and down movement of the lampshade, when the lighting range reaches the range desired by the user, the transparent plate is also cleaned to a certain extent, the lighting brightness is ensured, but there is a disadvantage that the transparent plate can only be cleaned by adjusting the up and down movement of the lampshade, and the lighting device in embodiment three can solve this problem.

[0053] Specifically, please refer to Figure 9 and Figure 10 Since the cover body 32 is a hollow structure, the fixing frame 54 is arranged in the cover body 32, the fixing frame 54 is used for fixing the motor 55, the motor 55 extends the rotating rod 53 towards the gear disc 6, the rotating rod 53 is used for rotating under the driving of the motor 55, the transmission gear 8 is fixedly connected at the end of the rotating rod 53 away from the motor 55, and the transmission gear 8 is connected with the cleaning mechanism through the reciprocating mechanism.

[0054] Need to explain, the cover body 32 can be provided with a through hole, the motor 55 is connected with external power supply through the through hole, in addition, since no transmission assembly is arranged, the cleaning transparent plate 4 can not be limited to the process of lampshade lifting, that is, it can be carried out under any condition that does not affect the working of the lighting device, in addition, in order to ensure that the cleaning rod 9 is retracted into the cover body 32 after cleaning is completed, the transmission gear 8, the reciprocating mechanism, the cleaning mechanism and the motor 55 can be arranged, it can be understood that the transmission gear 8, the reciprocating mechanism and the cleaning mechanism are matched, that is, the transmission gear 8 rotates one week, then the reciprocating mechanism makes one reciprocating motion, and the cleaning mechanism is driven by the reciprocating mechanism to control the cleaning rod 9 to swing one time, to complete a period of cleaning, in some other embodiments, the transmission gear 8 can be arranged to rotate one week, then the reciprocating mechanism makes multiple reciprocating motions, and the cleaning mechanism is driven by the reciprocating mechanism to control the cleaning rod 9 to swing multiple times, to complete multiple periods of cleaning, and the cleaning efficiency is improved, specifically, the motor 55 drives the rotating rod 53 to make a complete rotating motion each time, that is, from the initial position to the initial position, in the embodiment, the motor 55 can be controlled to work in a wireless remote sensing mode.

[0055] In conclusion, the lighting device with adjustable lighting range provided by the present application sets the fixing mechanism, the lampshade and the driving mechanism connected with the fixing mechanism and the lampshade respectively, the fixing mechanism is fixedly connected with the lighting lamp through the first transmission member, the lighting lamp is arranged in the lampshade, the first transmission member is rotatably provided with the second transmission member with external threads, the third transmission member matched with the second transmission member is arranged on the moving plate of the lampshade, and the third transmission member is an integral structure with the lampshade, the driving motor is embedded in the fixing plate, the driving motor extends the driving rod towards the lighting lamp, the driving wheel is fixedly arranged at the end of the driving rod close to the lighting lamp, and the driving wheel is engaged with the gear on the second transmission member, under the driving of the driving motor, the second transmission member is driven to rotate through the gear, so that the third transmission member sleeved on the second transmission member is rotated through the external threads, and the whole lampshade is driven to move up and down, thereby the adjustment of the lighting range is completed, in addition, the motor is arranged in the cover body, the cleaning mechanism can be controlled independently, the transparent plate fixedly arranged at the bottom of the lampshade is cleaned without affecting the appearance and light emission, and the light transmittance of the lighting device is maintained.

[0056] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0057] The above embodiments only express several implementation manners of the present application, which are described in a more specific and detailed manner, but cannot be understood as a limitation on the patent scope of the present application. It should be noted that, for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. An illumination device with adjustable illumination range, characterized in that include: A fixing mechanism is used to fix the lighting device; A lampshade, wherein a lighting lamp is provided inside the lampshade; A driving mechanism, connected to the fixing mechanism and the lampshade respectively, is used to drive the lampshade to move towards or away from the fixing mechanism; The driving mechanism includes a drive motor mounted on the fixed mechanism, a first transmission member fixedly connected to the lighting lamp and the fixed mechanism respectively, and a second transmission member rotatably mounted on the first transmission member. The second transmission member includes teeth disposed near one end of the fixed mechanism and an external thread extending from the teeth away from the fixed mechanism. The drive motor extends a drive rod towards the lighting lamp, and a drive wheel is fixedly mounted on one end of the drive rod near the lighting lamp. The drive wheel meshes with the teeth. The lamp cover includes a movable plate and a cover body extending outward from the movable plate. The movable plate is provided with a third transmission member adapted to the external thread, and the third transmission member is rotatably mounted on the second transmission member. The drive wheel is used to drive the external thread of the second transmission member to rotate through the teeth under the drive of the drive motor, so that the third transmission member moves along the direction of approaching or moving away from the fixed mechanism through the external thread. A limiting ring is fixed at one end of the first transmission member near the lighting lamp. The limiting ring is used to abut against the third transmission member when the lamp cover moves toward the lighting lamp. The fixing mechanism has a limiting groove symmetrically arranged with respect to the first transmission component. The moving plate extends a limiting rod that is movably engaged with the limiting groove in the direction of the fixing mechanism. The limiting groove is used to abut against the bottom of the limiting groove when the lampshade moves in the direction of the fixing mechanism. A transparent plate is fixed to the bottom of the lampshade; The cover extends a support platform away from the transparent plate. A cleaning mechanism is movably mounted on the support platform. The cleaning mechanism includes a gear and an internal gear meshing with the gear. A cleaning rod is fixed on the internal gear. Brushes are provided on the side of the cleaning rod near the transparent plate. The brushes are used to clean the outside of the transparent plate under the action of the cleaning mechanism. The limiting rod and the cover body are provided with a receiving space and are interconnected. The inner wall of the limiting groove is provided with a first rack. The end of the limiting rod near the bottom of the groove is provided with a fixed gear adapted to the first rack. The receiving space contains a transmission assembly. The transmission assembly is composed of multiple transmission rods. One end of the transmission assembly is rotatably engaged with the fixed gear, and the other end is rotatably engaged with a transmission gear fixed on the side of the cover body near the support platform. The transmission gear is connected to the cleaning mechanism through a reciprocating mechanism.

2. The illumination range adjustable illuminating device according to claim 1, characterized in that, The support platform extends a fixed column toward the lighting lamp, and the end of the fixed column away from the support platform is used for movable connection with the internal gear.

3. The illumination range adjustable illuminating device according to claim 2, characterized in that, The reciprocating mechanism comprises a second gear rack fixed to the inner wall of the cover body and a reciprocating assembly engaged with the second gear rack and the transmission gear respectively, wherein the reciprocating assembly comprises two outer gears connected by a connecting rod, a second reciprocating rod movably connected to the connecting rod, a first reciprocating rod movably connected to one end of the second reciprocating rod away from the connecting rod, and a reciprocating gear fixedly connected to one end of the first reciprocating rod away from the second reciprocating rod, the reciprocating gear being engaged with the transmission gear, and the outer gears being engaged with the second gear rack and the gear disc respectively.

4. The illumination range adjustable illuminating device according to claim 3, characterized in that, A slide rail is formed on the support platform, and a movable column is slidably arranged in the slide rail, one end of the movable column away from the slide rail being connected with the outer gear, so that the outer gear moves in a set direction of the slide rail.

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