A natural light classroom lighting fixture

Abstract

The present invention relates to the technical field of lighting equipment accessories, and in particular to a natural light classroom lighting fixture that can automatically clean the outer surface of a lighting tube; it includes a fixed seat, a left support plate, a right support plate, a left fixed plate, a right fixed plate and a lighting tube, the tops of the left support plate and the right support plate are respectively provided with a left mounting plate and a right mounting plate, the right end of the left fixed plate and the left end of the right fixed plate are respectively provided with a left mounting frame and a right mounting frame; it also includes a transmission belt, a sliding seat, a box body, a threaded shaft, an auxiliary plate, a threaded tube, a driving wheel, a driven wheel, a belt, a support plate, a steel pipe and a circular plate, the left half area and the right half area of ​​the top of the fixed seat are respectively provided with a driving wheel and a linkage wheel that are rotatably penetrated, an auxiliary hole is horizontally provided in the central area of ​​the left side wall of the circular plate, a plurality of groups of mounting rods are equidistantly provided in the auxiliary holes, and cleaning brushes are provided at one end of the plurality of groups of mounting rods.

Description

Technical Field

[0001] The invention relates to the technical field of lighting equipment attachments, and in particular to a natural light-imitation classroom lighting fixture. Background Art

[0002] As is known to all, natural light classroom lighting fixtures are auxiliary devices similar to natural light for illuminating classrooms, and have been widely used in the field of lighting equipment; existing natural light classroom lighting fixtures include a fixing base, a left support plate, a right support plate, a left fixing plate, a right fixing plate and a lighting tube, the bottom ends of the left and right supporting plates are respectively connected to the left and right half areas of the top end of the fixing base, the top ends of the left and right supporting plates are respectively provided with a left mounting plate and a right mounting plate, the top ends of the left and right mounting plates are respectively provided with a plurality of mounting holes, the top ends of the left fixing plate and the right fixing plate are respectively connected to the left and right half areas of the bottom end of the fixing base, and the right end of the left fixing plate A left mounting frame and a right mounting frame are respectively provided at the left end and the right end of the right fixing plate, and the left end and the right end of the lighting tube are respectively connected to the left mounting frame and the right mounting frame; when the existing natural light imitating classroom lighting fixture is used, the device is installed and fixed by the left mounting plate and the right mounting plate, the lighting tube is connected to the mains electricity, and the classroom is illuminated by the lighting tube; it is found in the use of the existing natural light imitating classroom lighting fixture that after a period of use, a large amount of dust and dead insects are easily adhered to the outer surface of the lighting tube, making the light dim, and the lighting tube needs to be removed to clean the outer surface of the lighting tube, which is inconvenient to operate and leads to poor convenience of use. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a natural light-simulating classroom lighting fixture which can automatically clean the outer surface of a lighting tube and improve the convenience of use.

[0004] The present invention discloses a natural light classroom lighting fixture, comprising a fixing seat, a left support plate, a right support plate, a left fixing plate, a right fixing plate and a lighting tube, wherein the bottom ends of the left support plate and the right fixing plate are respectively connected to the left half area and the right half area of ​​the top end of the fixing seat, the top ends of the left support plate and the right fixing plate are respectively provided with a left mounting plate and a right mounting plate, the top ends of the left mounting plate and the right fixing plate are respectively provided with a plurality of mounting holes, the top ends of the left fixing plate and the right fixing plate are respectively connected to the left half area and the right half area of ​​the bottom end of the fixing seat, the right end of the left fixing plate and the left end of the right fixing plate are respectively provided with a left mounting bracket and a right mounting bracket, and the left end of the lighting tube The left and right ends are respectively connected to the left mounting frame and the right mounting frame; it also includes a transmission belt, a sliding seat, a box body, a threaded shaft, an auxiliary plate, a threaded tube, a driving wheel, a driven wheel, a belt, a support plate, a steel pipe and a round plate. A fixed groove is arranged at the bottom end of the fixed seat, and a driving wheel and a linkage wheel are respectively rotatably penetrated in the left and right half areas of the top of the fixed seat. The transmission belt is sleeved on the driving wheel and the linkage wheel, and the driving wheel and the linkage wheel are connected through the transmission belt. The sliding seat is fixed to the left half area of ​​the bottom end of the transmission belt, and the top end of the sliding seat is in sliding contact with the bottom side wall of the fixed groove, and the bottom end of the sliding seat is in contact with the top of the box body. The central area is connected, a working chamber is arranged inside the box, a left through hole and a right through hole are respectively arranged horizontally in the central areas of the left and right ends of the box, the top and bottom ends of the auxiliary plate are respectively connected to the central areas of the top side wall and the inner bottom side wall of the box, a rotating hole is arranged horizontally in the central area of ​​the left wall of the auxiliary plate, the left end of the threaded tube passes through the rotating hole, the left end of the threaded shaft passes through the left through hole and is connected to the left side wall in the fixing groove, the right end of the threaded shaft passes through the right through hole and is connected to the right side wall in the fixing groove, the threaded tube is threadedly mounted on the threaded shaft, the driving wheel fixing sleeve is arranged on the left half area outside the threaded tube, and the box A square hole is set in the left half area of ​​the bottom end, the top of the support plate is connected to the left half area of ​​the bottom end of the box body, a connecting hole is horizontally set in the central area of ​​the left side wall of the support plate, the right end of the steel pipe passes through the connecting hole and is connected to the left end of the circular plate, the driven wheel is fixedly sleeved in the left half area outside the steel pipe, the belt is sleeved on the driving wheel and the driven wheel, the driving wheel and the driven wheel are connected by belt transmission, the belt passes through the square hole, an auxiliary hole is horizontally set in the central area of ​​the left side wall of the circular plate, multiple groups of mounting rods are equidistantly arranged in the auxiliary holes, cleaning brushes are set at the centripetal end of the multiple groups of mounting rods, and the right end of the left mounting frame passes through the auxiliary hole.

[0005] The natural light imitating classroom lighting fixture of the present invention further comprises a left arc reinforcing rib and a right arc reinforcing rib, and the left fixing plate and the right fixing plate are respectively connected to the fixing seat through the left arc reinforcing rib and the right arc reinforcing rib.

[0006] The natural light imitating classroom lighting fixture of the present invention also includes a left reinforcement rod and a right reinforcement rod, the top ends of the left reinforcement rod and the right reinforcement rod are connected to the transmission belt, and the bottom ends of the left reinforcement rod and the right reinforcement rod are respectively connected to the left end and the right end of the sliding seat.

[0007] The invention discloses a natural light-simulating classroom lighting fixture. The top of the sliding seat is rotatably provided with a plurality of groups of steel balls, and the tops of the plurality of groups of steel balls are in contact with the inner bottom side wall of the fixing groove.

[0008] In the natural light imitating classroom lighting fixture of the present invention, a first ball bearing is arranged between the threaded tube and the inner side wall of the rotating hole.

[0009] In the natural light imitating classroom lighting fixture of the present invention, a second ball bearing is arranged between the steel pipe and the inner side wall of the communicating hole.

[0010] The invention discloses a natural light imitating classroom lighting fixture. The top ends of the left mounting plate and the right mounting plate are respectively provided with a left rubber pad and a right rubber pad.

[0011] The natural light imitating classroom lighting fixture of the present invention also comprises a connecting rod, the top end of the connecting rod is connected to the bottom end of the box body, and the bottom end of the connecting rod is connected to the right end of the supporting plate.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: the driving wheel is driven by an external driving device, and the driving wheel and the linkage wheel drive the transmission belt to rotate counterclockwise for a specified distance and then rotate in the opposite direction for the same distance, thereby causing the sliding seat to slide back and forth along the bottom side wall of the fixed groove, and the sliding seat drives the box body to move back and forth in the fixed groove. Since the threaded tube is screwed onto the outside of the threaded shaft, the threaded tube rotates back and forth during the reciprocating movement of the threaded tube, thereby driving the driving wheel to rotate back and forth, and the driving wheel drives the driven wheel to rotate back and forth through the belt, and the driven wheel drives the circular plate to rotate back and forth through the steel pipe. During the movement of the circular plate to the left and right, the cleaning brush contacts the outer surface of the lighting tube, and the outer surface of the lighting tube is cleaned by the cleaning brush at the circular plate. The outer surface of the lighting tube can be automatically cleaned, thereby improving the convenience of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the present invention;

[0014] Figure 2 It is a schematic three-dimensional diagram of the connection between the threaded pipe and the driving wheel;

[0015] Figure 3 It is a front cross-sectional view showing the connection of a lighting tube, a steel tube, a round plate, a plurality of mounting rods, a cleaning brush and a driven wheel;

[0016] Figure 4 is a schematic right view of the connection between the circular plate, multiple sets of mounting rods and cleaning bristles;

[0017] Figure 5 yes Figure 1 A partial enlarged view of middle A;

[0018] Markings in the attached drawings: 1. fixed seat; 2. left support plate; 3. right support plate; 4. left fixed plate; 5. right fixed plate; 6. lighting tube; 7. left mounting plate; 8. right mounting plate; 9. left mounting frame; 10. right mounting frame; 11. transmission belt; 12. sliding seat; 13. box body; 14. threaded shaft; 15. auxiliary plate; 16. threaded pipe; 17. driving wheel; 18. driven wheel; 19. belt; 20. support plate; 21. steel pipe; 22. round plate; 23. driving wheel; 24. linkage wheel; 25. mounting rod; 26. cleaning brush; 27. left arc-shaped reinforcement rib; 28. right arc-shaped reinforcement rib; 29. ​​left reinforcement rod; 30. right reinforcement rod; 31. steel ball; 32. first ball bearing; 33. second ball bearing; 34. left rubber pad; 35. right rubber pad; 36. connecting rod. DETAILED DESCRIPTION

[0019] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] like Figures 1 to 5As shown, a natural light classroom lighting fixture of the present invention comprises a fixing base 1, a left support plate 2, a right support plate 3, a left fixing plate 4, a right fixing plate 5 and a lighting lamp tube 6. The bottom ends of the left fixing plate 2 and the right fixing plate 3 are respectively connected to the left half area and the right half area of ​​the top of the fixing base 1. The top ends of the left fixing plate 2 and the right fixing plate 3 are respectively provided with a left mounting plate 7 and a right mounting plate 8. The top ends of the left mounting plate 7 and the right mounting plate 8 are both provided with a plurality of groups of mounting holes. The top ends of the left fixing plate 4 and the right fixing plate 5 are respectively connected to the left half area and the right half area of ​​the bottom end of the fixing base 1. The right end of the left fixing plate 4 and the left end of the right fixing plate 5 are respectively provided with a left mounting frame 9 and a right mounting frame 10. The left end and the right end of the lighting lamp tube 6 are respectively connected to the left mounting frame 9 and the right mounting frame 10. The mounting frame 9 is connected to the right mounting frame 10; it also includes a transmission belt 11, a sliding seat 12, a box body 13, a threaded shaft 14, an auxiliary plate 15, a threaded tube 16, a driving wheel 17, a driven wheel 18, a belt 19, a support plate 20, a steel pipe 21 and a circular plate 22. The bottom end of the fixed seat 1 is provided with a fixed groove, and the left and right half areas of the top of the fixed seat 1 are respectively provided with a driving wheel 23 and a linkage wheel 24 that rotate through them. The transmission belt 11 is sleeved on the driving wheel 23 and the linkage wheel 24, and the driving wheel 23 and the linkage wheel 24 are connected through the transmission belt 11. The sliding seat 12 is fixed to the left half area of ​​the bottom end of the transmission belt 11, and the top of the sliding seat 12 is in sliding contact with the bottom side wall of the fixed groove. The sliding seat 1 2 bottom end is connected with the central area of ​​the top of the box body 13, a working chamber is arranged inside the box body 13, a left through hole and a right through hole are arranged transversely in the central areas of the left and right ends of the box body 13, the top and bottom ends of the auxiliary plate 15 are connected with the central areas of the top side wall and the bottom side wall of the box body 13, respectively, a rotation hole is arranged transversely in the central area of ​​the left side wall of the auxiliary plate 15, the left end of the threaded tube 16 passes through the rotation hole, the left end of the threaded shaft 14 passes through the left through hole and is connected to the left side wall of the fixing groove, the right end of the threaded shaft 14 passes through the right through hole and is connected to the right side wall of the fixing groove, the threaded tube 16 is threadedly sleeved on the threaded shaft 14, the driving wheel 17 is fixedly sleeved on the left half area of ​​the outer side of the threaded tube 16, the bottom of the box body 13 A square hole is provided in the left half area of ​​the end, the top of the support plate 20 is connected to the left half area of ​​the bottom end of the box body 13, a connecting hole is transversely provided in the central area of ​​the left wall of the support plate 20, the right end of the steel pipe 21 passes through the connecting hole and is connected to the left end of the circular plate 22, the driven wheel 18 is fixedly sleeved in the left half area outside the steel pipe 21, the belt 19 is sleeved on the driving wheel 17 and the driven wheel 18, the driving wheel 17 and the driven wheel 18 are connected by the belt 19, the belt 19 passes through the square hole, an auxiliary hole is transversely provided in the central area of ​​the left wall of the circular plate 22, multiple groups of mounting rods 25 are equidistantly arranged in the auxiliary holes, and cleaning brushes 26 are provided at one end of the multiple groups of mounting rods 25, and the right end of the left mounting frame 9 passes through the auxiliary hole;The driving wheel is driven by an external driving device, and the driving wheel and the linkage wheel drive the transmission belt to rotate counterclockwise for a specified distance and then rotate in the opposite direction for the same distance, so that the sliding seat slides back and forth along the bottom side wall of the fixed groove, and the sliding seat drives the box to move back and forth in the fixed groove. Since the threaded tube is screwed on the outside of the threaded shaft, the threaded tube reciprocates during the reciprocating movement of the threaded tube, and then drives the driving wheel to reciprocate, and the driving wheel drives the driven wheel to reciprocate through the belt, and the driven wheel drives the circular plate to reciprocate through the steel pipe. During the movement of the circular plate, the cleaning brush contacts the outer surface of the lighting tube, and the outer surface of the lighting tube is cleaned by the cleaning brush at the circular plate, which can automatically clean the outer surface of the lighting tube, thereby improving the convenience of use. ;

[0021] The natural light imitating classroom lighting fixture of the present invention also includes a left arc-shaped reinforcing rib 27 and a right arc-shaped reinforcing rib 28. The left fixing plate 4 and the right fixing plate 5 are connected to the fixing seat 1 through the left arc-shaped reinforcing rib 27 and the right arc-shaped reinforcing rib 28 respectively; the left arc-shaped reinforcing rib and the right arc-shaped reinforcing rib can enhance the firmness of the left fixing plate and the right fixing plate and improve the reliability of use.

[0022] A natural light imitating classroom lighting fixture of the present invention also includes a left reinforcement rod 29 and a right reinforcement rod 30. The top ends of the left reinforcement rod 29 and the right reinforcement rod 30 are connected to the transmission belt 11, and the bottom ends of the left reinforcement rod 29 and the right reinforcement rod 30 are respectively connected to the left end and the right end of the sliding seat 12; the left reinforcement rod and the right reinforcement rod can enhance the connection firmness between the sliding seat and the transmission belt, thereby improving the reliability of use.

[0023] In the classroom lighting fixture simulating natural light of the present invention, a plurality of groups of steel balls 31 are rotatably arranged at the top of a sliding seat 12, and the tops of the plurality of groups of steel balls 31 are in contact with the bottom side wall of a fixed groove; the plurality of groups of steel balls can reduce the friction resistance when the sliding seat slides along the top side wall of the fixed groove, thereby improving the smoothness of use.

[0024] In the natural light-simulating classroom lighting fixture of the present invention, a first ball bearing 32 is arranged between the threaded tube 16 and the inner wall of the rotating hole; the first ball bearing can reduce the friction resistance of the threaded tube when rotating in the rotating hole, thereby improving the smoothness of use.

[0025] In the natural light-simulating classroom lighting fixture of the present invention, a second ball bearing 33 is arranged between the steel pipe 21 and the inner wall of the connecting hole; the second ball bearing can reduce the friction resistance of the steel pipe when it rotates in the connecting hole, thereby improving the smoothness of use.

[0026] In the classroom lighting fixture imitating natural light of the present invention, a left rubber pad 34 and a right rubber pad 35 are respectively arranged on the top of the left mounting plate 7 and the right mounting plate 8; the left rubber pad and the right rubber pad can enhance the installation firmness of the device and improve the stability in use.

[0027] The natural light-simulating classroom lighting fixture of the present invention further includes a connecting rod 36, the top end of the connecting rod 36 is connected to the bottom end of the box 13, and the bottom end of the connecting rod 36 is connected to the right end of the support plate 20; the connecting rod can reinforce the support plate to improve the reliability of use.

[0028] The present invention provides a classroom lighting fixture imitating natural light. When it is working, the driving wheel is driven by an external driving device. The driving wheel and the linkage wheel drive the transmission belt to rotate counterclockwise for a specified distance and then rotate in the opposite direction for the same distance, so that the sliding seat slides back and forth along the bottom side wall of the fixed groove, and the sliding seat drives the box body to move back and forth in the fixed groove. Since the threaded tube is screwed on the outside of the threaded shaft, the threaded tube rotates back and forth during the reciprocating movement of the threaded tube, thereby driving the driving wheel to rotate back and forth, the driving wheel drives the driven wheel to rotate back and forth through the belt, and the driven wheel drives the circular plate to rotate back and forth through the steel pipe. During the movement of the circular plate to the left and right, the cleaning bristles come into contact with the outer surface of the lighting tube, and the outer surface of the lighting tube is cleaned by the cleaning bristles at the circular plate. Cleaning can automatically clean the outer surface of the lighting tube to improve convenience of use; the left arc-shaped reinforcement rib and the right arc-shaped reinforcement rib can enhance the firmness of the left fixed plate and the right fixed plate to improve reliability of use; the left reinforcement rod and the right reinforcement rod can enhance the firmness of the connection between the sliding seat and the transmission belt to improve reliability of use; multiple groups of steel balls can reduce the friction resistance of the sliding seat when it slides along the top side wall of the fixed groove to improve smoothness of use; the first ball bearing can reduce the friction resistance of the threaded pipe when it rotates in the rotating hole to improve smoothness of use; the second ball bearing can reduce the friction resistance of the steel pipe when it rotates in the connecting hole to improve smoothness of use; the left rubber pad and the right rubber pad can enhance the installation firmness of the device and improve stability of use; the connecting rod can reinforce the support plate to improve reliability of use.

[0029] The lighting tube used in the natural light-imitation classroom lighting fixture of the present invention is an existing product or overall structure purchased from the market, and any product that can achieve the required functions can be adopted and can be installed and used according to the instructions.

[0030] The present invention is a natural light-imitation classroom lighting fixture, and the installation method, connection method or setting method of all the above-mentioned components are common mechanical methods, and the specific structures, models and coefficient indicators of all its components are its own technology. As long as it can achieve its beneficial effects, it can be implemented, so it will not be elaborated.

[0031] For a natural light-simulating classroom lighting fixture of the present invention, unless otherwise specified, the directional words contained in the terms such as "up, down, left, right, front, back, inside, outside, vertical, horizontal" only represent the directions of the terms in normal use, or are common names understood by those skilled in the art, and should not be regarded as limitations on the terms. At the same time, the number series nouns such as "first", "second" and "third" do not represent specific quantities and orders, but are merely used to distinguish names. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A natural light classroom lighting fixture, comprising a fixing seat (1), a left support plate (2), a right support plate (3), a left fixing plate (4), a right fixing plate (5) and a lighting tube (6), wherein the bottom ends of the left fixing plate (2) and the right fixing plate (3) are respectively connected to the left half area and the right half area of ​​the top end of the fixing seat (1), the top ends of the left fixing plate (2) and the right fixing plate (3) are respectively provided with a left mounting plate (7) and a right mounting plate (8), the top ends of the left fixing plate (4) and the right fixing plate (5) are respectively provided with a plurality of mounting holes, the top ends of the left fixing plate (4) and the right fixing plate (5) are respectively connected to the left half area and the right half area of ​​the bottom end of the fixing seat (1), the right end of the left fixing plate (4) and the left end of the right fixing plate (5) are respectively provided with a left mounting frame (9) and a right mounting frame (10), and the left end and the right end of the lighting tube (6) are respectively connected to the left mounting frame (9) and the right mounting frame (10); characterized in that: It also comprises a transmission belt (11), a sliding seat (12), a box body (13), a threaded shaft (14), an auxiliary plate (15), a threaded tube (16), a driving wheel (17), a driven wheel (18), a belt (19), a support plate (20), a steel tube (21) and a circular plate (22). The bottom end of the fixed seat (1) is provided with a fixing groove. The left half area and the right half area of ​​the top end of the fixed seat (1) are respectively provided with a driving wheel (23) and a linkage wheel (24) which are rotatably penetrated. The transmission belt (11) is sleeved on the driving wheel (23) and the linkage wheel (24). The driving wheel (23) and the linkage wheel (24) are connected to each other through the transmission belt (11). The driving belt (11) is connected to the driving belt (11), the sliding seat (12) is fixed to the left half area of ​​the bottom end of the driving belt (11), the top end of the sliding seat (12) is in sliding contact with the bottom side wall of the fixing groove, the bottom end of the sliding seat (12) is connected to the central area of ​​the top end of the box body (13), the box body (13) is provided with a working chamber, the central areas of the left and right ends of the box body (13) are respectively provided with a left through hole and a right through hole, the top and bottom ends of the auxiliary plate (15) are respectively connected to the central areas of the top side wall and the bottom side wall of the box body (13), the central area of ​​the left side wall of the auxiliary plate (15) is provided with a rotation hole, and the threaded tube The left end of the threaded shaft (16) passes through the rotating hole, the left end of the threaded shaft (14) passes through the left through hole and is connected to the left side wall of the fixed groove, the right end of the threaded shaft (14) passes through the right through hole and is connected to the right side wall of the fixed groove, the threaded tube (16) is threadedly sleeved on the threaded shaft (14), the driving wheel (17) is fixedly sleeved on the left half area outside the threaded tube (16), the left half area of ​​the bottom end of the box body (13) is provided with a square hole, the top end of the support plate (20) is connected to the left half area of ​​the bottom end of the box body (13), the central area of ​​the left side wall of the support plate (20) is horizontally provided with a connecting hole, and the right end of the steel tube (21) passes through the connecting hole. The circular plate (22) has a through hole and is connected to the left end of the circular plate (22); the driven wheel (18) is fixedly sleeved on the left half area outside the steel pipe (21); the belt (19) is sleeved on the driving wheel (17) and the driven wheel (18); the driving wheel (17) and the driven wheel (18) are connected by the belt (19); the belt (19) passes through the square hole; an auxiliary hole is transversely arranged in the central area of ​​the left side wall of the circular plate (22); a plurality of groups of mounting rods (25) are equidistantly arranged in the auxiliary hole; a cleaning brush (26) is arranged at one end of the plurality of groups of mounting rods (25); and the right end of the left mounting frame (9) passes through the auxiliary hole; It also includes a left arc-shaped reinforcing rib (27) and a right arc-shaped reinforcing rib (28), wherein the left fixing plate (4) and the right fixing plate (5) are connected to the fixing seat (1) via the left arc-shaped reinforcing rib (27) and the right arc-shaped reinforcing rib (28), respectively; It also includes a left reinforcement rod (29) and a right reinforcement rod (30), wherein the top ends of the left reinforcement rod (29) and the right reinforcement rod (30) are connected to the transmission belt (11), and the bottom ends of the left reinforcement rod (29) and the right reinforcement rod (30) are respectively connected to the left end and the right end of the sliding seat (12); A plurality of groups of steel balls (31) are rotatably disposed at the top of the sliding seat (12), and the tops of the plurality of groups of steel balls (31) are in contact with the bottom side wall of the fixing groove; A first ball bearing (32) is provided between the threaded tube (16) and the inner wall of the rotating hole; A second ball bearing (33) is provided between the steel pipe (21) and the inner wall of the communicating hole; When it is working, the driving wheel is driven by an external driving device, and the driving wheel and the linkage wheel drive the transmission belt to rotate counterclockwise for a specified distance and then rotate in the opposite direction for the same distance, so that the sliding seat slides back and forth along the bottom side wall of the fixed groove, and the sliding seat drives the box to move back and forth in the fixed groove. Since the threaded tube is screwed on the outside of the threaded shaft, the threaded tube rotates back and forth during the reciprocating movement of the threaded tube, thereby driving the driving wheel to rotate back and forth, and the driving wheel drives the driven wheel to rotate back and forth through the belt, and the driven wheel drives the circular plate to rotate back and forth through the steel pipe. During the movement of the circular plate to the left and right, the cleaning brush contacts the outer surface of the lighting tube, and the outer surface of the lighting tube is cleaned by the cleaning brush at the circular plate, which can automatically compare The outer surface of the bright lamp tube is cleaned to improve the convenience of use; the left arc-shaped reinforcement rib and the right arc-shaped reinforcement rib can enhance the firmness of the left fixed plate and the right fixed plate, and improve the reliability of use; the left reinforcement rod and the right reinforcement rod can enhance the firmness of the connection between the sliding seat and the transmission belt, and improve the reliability of use; multiple groups of steel balls can reduce the friction resistance of the sliding seat when sliding along the top side wall of the fixed groove, and improve the smoothness of use; the first ball bearing can reduce the friction resistance of the threaded pipe when rotating in the rotating hole, and improve the smoothness of use; the second ball bearing can reduce the friction resistance of the steel pipe when rotating in the connecting hole, and improve the smoothness of use; the left rubber pad and the right rubber pad can enhance the installation firmness of the device and improve the stability of use; the connecting rod can reinforce the support plate to improve the reliability of use.

2. A natural light classroom lighting fixture as claimed in claim 1, characterized in that: A left rubber pad (34) and a right rubber pad (35) are respectively arranged at the top ends of the left mounting plate (7) and the right mounting plate (8).

3. A natural light classroom lighting fixture as claimed in claim 2, characterized in that: It also includes a connecting rod (36), the top end of the connecting rod (36) is connected to the bottom end of the box body (13), and the bottom end of the connecting rod (36) is connected to the right end of the support plate (20).

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